AAT4280IGU-2-T1 - Skyworks Solutions, Inc.

AAT4280

Slew Rate Controlled Load SwitchSmartSwitchTM

PRODUCT DATASHEET

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General Description

The AAT4280 SmartSwitch is a P-channel MOSFET power

switch designed for high-side load switching applica-

tions. The P-channel MOSFET device has a typical RDS(ON)

of 80mΩ, allowing increased load switch power handling

capacity. This device is available in three different ver-

sions with flexible turn on and off characteristics from

very fast to slew rate limited. The standard AAT4280 (-1)

version has a slew rate limited turn on load switch and

is functionally compatible with the AAT4250 device while

offering superior RDS(ON) characteristics. The AAT4280

(-2) version features fast load switch turn on capabili-

ties, typically less than 500ns turn on and 3μs turn off

times. The AAT4280 (-3) variation offers a shutdown

load discharge circuit to rapidly turn off a load circuit

when the switch is disabled. All AA T4280 load switch ver -

sions operate with an input voltage ranging from 1.8V to

5.5V, making them ideal for both 3V and 5V systems.

The AAT4280 also features an under-voltage lockout

which turns the switch off when an input under-voltage

condition exists. Input logic levels are TTL and 2.5V to

5V CMOS compatible. The quiescent supply current is

very low, typically 2.5μA. In shutdown mode, the supply

current decreases to less than 1μA.

The AAT4280 is available in a Pb-free, 6-pin SOT23 or

8-pin SC70JW package and is specified over the -40°C to

+85°C temperature range.

Features

• 1.8V to 5.5V Input Voltage Range

• Very Low RDS(ON), Typically 80mΩ (5V)

• Slew Rate Limited Turn-On Time Options

▪ 1ms

▪ 0.5μs

▪ 100μs

• Fast Shutdown Load Discharge Option

• Low Quiescent Current

▪ 2.5μA Typical

▪ 1μA Max in Shutdown

• TTL/CMOS Input Logic Level

• Temperature Range: -40ºC to +85°C

• 4kV ESD Rating

• 6-Pin SOT23 or 8-Pin SC70JW Package

Applications

• Cellular Telephones

• Digital Still Cameras

• Hot Swap Supplies

• Notebook Computers

• Personal Communication Devices

• Personal Digital Assistants (PDA)

Typical Application

AAT4280

COUT

0.1μF

CIN

1μF

OUTIN

GND

VOUT

GND

VIN

ON/OFF GND

AAT4280

Slew Rate Controlled Load SwitchSmartSwitchTM

PRODUCT DATASHEET

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Pin Descriptions

Pin Number

Symbol Function

SOT23-6 SC70JW-8

1 2 OUT This pin is the P-channel MOSFET drain connection. Bypass to ground through a 0.1μF

capacitor.

2, 5 4 GND Ground connection.

ON/OFF Enable input.

4, 6 1, 5, 6, 7, 8 IN This pin is the input to the P-channel MOSFET source. Bypass to ground through a 1.0μF

capacitor.

Pin Configuration

SOT23-6 SC70JW-8

(Top View) (Top View)

GND

ON/OFF

OUT

ON/OFF

GND

IN 1

AAT4280

Slew Rate Controlled Load SwitchSmartSwitchTM

PRODUCT DATASHEET

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1. -Stresses above those listed in Absolute Maximum Ratings may cause permanent damage to the device. Functional operation at conditions other than the operating conditions

specified is not implied. Only one Absolute Maximum Rating should be applied at any one time.

2. Human body model is a 100pF capacitor discharged through a 1.5kΩ resistor into each pin.

3. Mounted on an AAT4280 demo board in still 25ºC air.

Selector Guide

Part Number Slew Rate (typ) Active Pull Down Enable

AAT4280-1 1ms Active High

AAT4280-2 0.5μs Active High

AAT4280-3 100μs9Active High

Absolute Maximum Ratings1

TA = 25°C, unless otherwise noted.

Symbol Description Value Units

VIN IN to GND -0.3 to 6 V

VON ON/OFF to GND -0.3 to 6 V

VOUT OUT to GND -0.3 to VIN + 0.3 V

IMAX Maximum Continuous Switch Current 2.3 A

IDM Maximum Pulsed Current IN ≥ 2.5V 6 A

IN < 2.5V 3 A

TJOperating Junction Temperature Range -40 to 150 °C

TSStorage Temperature Range -65 to 150 °C

TLEAD Maximum Soldering Temperature (at leads) 300 °C

VESD ESD Rating2 - HBM 4000 V

Thermal Characteristics3

Symbol Description

Value

UnitsSOT23-6 SC70JW-8

ΘJA Thermal Resistance 120 140 °C/W

PDPower Dissipation 833 714 mW

AAT4280

Slew Rate Controlled Load SwitchSmartSwitchTM

PRODUCT DATASHEET

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1. Part requires minimum start-up of VIN  2.0V to ensure operation down to 1.8V.

2. For VIN outside this range, consult typical ON/OFF threshold curve.

Electrical Characteristics

VIN = 5V, TA = -40°C to +85°C, unless otherwise noted. Typical values are TA = 25°C.

Symbol Description Conditions Min Typ Max Units

AAT4280 All Versions

VIN Operation Voltage 1.81 5.5 V

VUVLO Under-Voltage Lockout VIN Falling 1.0 1.4 1.8 V

VUVLO(hys) Under-Voltage Lockout Hysteresis 250 mV

IQQuiescent Current ON/OFF = Active 2.5 4 μA

IQ(OFF) Off Supply Current ON/OFF = Inactive, OUT = Open 1 μA

ISD(OFF) Off Switch Current ON/OFF = Inactive, VOUT = 0 1 μA

RDS(ON) On Resistance

VIN = 5V, TA = 25°C 80 120

mΩ

VIN = 4.2V, TA = 25°C 85 130

VIN = 3V, TA = 25°C 100 150

VIN = 1.8V, TA = 25°C 160 250

TCRDS On Resistance Temperature Coefﬁ cient 2800 ppm/°C

VIL ON/OFF Input Logic Low Voltage VIN = 2.7V to 5.5V20.8 V

VIN = 2.7V to ≤ 4.2V 2

VIH ON/OFF Input Logic High Voltage VIN = 3.3V 1.8 V

VIN = >4.2V to 5.5V 2.4

ISINK ON/OFF Input Leakage VON/OFF = 5.5V 1 μA

AAT4280-1

TD(ON) Output Turn-On Delay VIN = 5V, RLOAD = 10Ω, TA = 25°C 20 40 μs

TON Output Turn-On Rise Time VIN = 5V, RLOAD = 10Ω, TA = 25°C 1000 1500 μs

TD(OFF) Output Turn-Off Delay Time VIN = 5V, RLOAD = 10Ω, TA = 25°C 4 10 μs

AAT4280-2

TD(ON) Output Turn-On Delay VIN = 5V, RLOAD = 10Ω, TA = 25°C 0.5 2 μs

TON Output Turn-On Rise Time VIN = 5V, RLOAD = 10Ω, TA = 25°C 0.5 1 μs

TD(OFF) Output Turn-Off Delay Time VIN = 5V, RLOAD = 10Ω, TA = 25°C 4 10 μs

AAT4280-3

TD(ON) Output Turn-On Delay VIN = 5V, RLOAD = 10Ω, TA = 25°C 20 40 μs

TON Output Turn-On Rise Time VIN = 5V, RLOAD = 10Ω, TA = 25°C 100 150 μs

TD(OFF) Output Turn-Off Delay Time VIN = 5V, RLOAD = 10Ω, TA = 25°C 4 10 μs

RPD Output Pull-Down Resistance During OFF ON/OFF = Inactive, TA = 25°C 150 250 Ω

AAT4280

Slew Rate Controlled Load SwitchSmartSwitchTM

PRODUCT DATASHEET

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Typical Characteristics

Unless otherwise noted, VIN = 5V, TA = 25°C.

Quiescent Current vs. Temperature

-40-200 20406080100

Temperature (°C)

Quiescent Current (μA)

VIN = 5V

VIN = 3V

Quiescent Current vs. Input Voltage

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

0123456

Input Voltage (V)

Quiescent Current (μA)

RDS(ON) vs. Input Voltage

110

130

150

170

190

1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5

Input Voltage (V)

RDS(ON) (mΩ)

500mA

100mA

RDS(ON) vs. Temperature

100

110

120

-40 -20 0 20 40 60 80 100

Temperature (°C)

RDS(ON) (mΩ)

VIN = 5V

VIN = 3V

ON/OFF Threshold vs. Input Voltage

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8

2.0

2.2

1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5

Input Voltage (V)

ON/OFF Threshold (V)

VIH

VIL

Off-Switch Current vs. Temperature

0.001

0.010

0.100

1.000

-40 -20 0 20 40 60 80 100

Temperature (°C)

IOFFSW (μA)

AAT4280

Slew Rate Controlled Load SwitchSmartSwitchTM

PRODUCT DATASHEET

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Typical Characteristics—AAT4280-1

Unless otherwise noted, VIN = 5V, TA = 25°C.

AAT4280-1 Turn-On

(VIN = 3V; RL = 6Ω)

Time (500μs/div)

ON/OFF (5V/div)

VOUT (2V/div)

IIN (200mA/div)

AAT4280-1 Turn-On

(VIN = 5V; RL = 10Ω)

Time (500μs/div)

ON/OFF (5V/div)

VOUT (2V/div)

IIN (200mA/div)

AAT4280-1 Turn-Off

(VIN = 3V; RL = 6Ω)

Time (10μs/div)

ON/OFF (5V/div)

VOUT (2V/div)

IIN (200mA/div)

AAT4280-1 Turn-Off

(VIN = 5V; RL = 10Ω)

Time (10μs/div)

ON/OFF (5V/div)

VOUT (2V/div)

IIN (200mA/div)

AAT4280

Slew Rate Controlled Load SwitchSmartSwitchTM

PRODUCT DATASHEET

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Typical Characteristics—AAT4280-2

Unless otherwise noted, VIN = 5V, TA = 25°C.

AAT4280-2 Turn-On

(VIN = 3V; RL = 6Ω)

Time (5μs/div)

ON/OFF (5V/div)

VOUT (2V/div)

IIN (200mA/div)

AAT4280-2 Turn-On

(VIN = 5V; RL = 10Ω)

Time (5μs/div)

ON/OFF (5V/div)

VOUT (2V/div)

IIN (200mA/div)

AAT4280-2 Turn-Off

(VIN = 3V; RL = 6Ω)

Time (5μs/div)

ON/OFF (5V/div)

VOUT (2V/div)

IIN (200mA/div)

AAT4280-2 Turn-Off

(VIN = 5V; RL = 10Ω)

Time (5μs/div)

ON/OFF (5V/div)

VOUT (2V/div)

IIN (200mA/div)

AAT4280

Slew Rate Controlled Load SwitchSmartSwitchTM

PRODUCT DATASHEET

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Typical Characteristics—AAT4280-3

Unless otherwise noted, VIN = 5V, TA = 25°C.

AAT4280-3 Turn-On

(VIN = 3V; RL = 6Ω)

Time (50μs/div)

ON/OFF (5V/div)

VOUT (2V/div)

IIN (200mA/div)

AAT4280-3 Turn-On

(VIN = 5V; RL = 10Ω)

Time (50μs/div)

ON/OFF (5V/div)

VOUT (2V/div)

IIN (200mA/div)

AAT4280-3 Turn-Off

(VIN = 3V; RL = 6Ω)

Time (5μs/div)

ON/OFF (5V/div)

VOUT (2V/div)

IIN (200mA/div)

AAT4280-3 Turn-Off

(VIN = 5V; RL = 10Ω

)

Time (5μs/div)

ON/OFF (5V/div)

VOUT (2V/div)

IIN (200mA/div)

AAT4280

Slew Rate Controlled Load SwitchSmartSwitchTM

PRODUCT DATASHEET

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Functional Description

The AAT4280 is a family of flexible P-channel MOSFET

power switches designed for high-side load switching

applications. There are three versions of the AAT4280

with different turn-on and turn-off characteristics to

choose from, depending upon the specific requirements

of an application. The first version, the AAT4280-1, has

a moderate turn-on slew rate feature, which reduces

inrush current when the MOSFET is turned on. This func-

tion allows the load switch to be implemented with either

a small input capacitor or no input capacitor at all.

During turn-on slewing, the current ramps linearly until

it reaches the level required for the output load condi-

tion. The proprietary turn-on current control method

works by careful control and monitoring of the MOSFET

gate voltage. When the device is switched ON, the gate

voltage is quickly increased to the threshold level of the

MOSFET. Once at this level, the current begins to slew as

the gate voltage is slowly increased until the MOSFET

becomes fully enhanced. Once it has reached this point,

the gate is quickly increased to the full input voltage and

RDS(ON) is minimized.

The second version, the AAT4280-2, is a very fast switch

intended for high-speed switching applications. This ver-

sion has no turn-on slew rate control and no special

output discharge features.

The final version, the AAT4280-3, has the addition of a

minimized slew rate limited turn-on function and a shut-

down output discharge circuit to rapidly turn off a load

when the load switch is disabled through the ON/OFF

pin.

All versions of the AAT4280 operate with input voltages

ranging from 1.8V to 5.5V. All versions of this device

have extremely low operating current, making them

ideal for battery-powered applications. In cases where

the input voltage drops below 1.8V, the AA T4280 MOSFET

device is protected from entering into the saturation

region of operation by automatically shutting down

through an under-voltage lockout control circuit. The

ON/OFF control pin is TTL compatible and will also func-

tion with 2.5V to 5V logic systems, making the AAT4280

an ideal level-shifting load switch.

Functional Block Diagram

Under-

Voltage

Lockout

Level

Shift

ON/OFF

OUT

GND

Turn-On

Slew Rate

Control

*AAT4280-3 only

AAT4280

Slew Rate Controlled Load SwitchSmartSwitchTM

PRODUCT DATASHEET

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Applications Information

Input Capacitor

A 1μF or larger capacitor is typically recommended for CIN

in most applications. A CIN capacitor is not required for

basic operation. However, CIN is useful in preventing load

transients from affecting upstream circuits. CIN should be

located as close to the device VIN pin as practically possi-

ble. Ceramic, tantalum, or aluminum electrolytic capaci-

tors may be selected for CIN. There is no specific capacitor

ESR requirement for CIN. However, for higher current

operation, ceramic capacitors are recommended for CIN

due to their inherent capability over tantalum capacitors

to withstand input current surges from low impedance

sources, such as batteries in portable devices.

Output Capacitor

For proper slew operation, a 0.1μF capacitor or greater

between VOUT and GND is recommended. The output

capacitor has no specific capacitor type or ESR require-

ment. If desired, COUT may be increased without limit to

accommodate any load transient condition without

adversely affecting the device turn-on slew rate time.

Enable Function

The AAT4280 features an enable / disable function. This

pin (ON/OFF) is compatible with both TTL or CMOS logic.

Reverse Output-to-Input Voltage

Conditions and Protection

Under normal operating conditions, a parasitic diode

exists between the output and input of the load switch.

The input voltage should always remain greater than the

output load voltage, maintaining a reverse bias on the

internal parasitic diode. Conditions where VOUT might

exceed VIN should be avoided since this would forward

bias the internal parasitic diode and allow excessive cur-

rent flow into the VOUT pin and possibly damage the load

switch.

In applications where there is a possibility of VOUT

exceeding VIN for brief periods of time during normal

operation, the use of a larger value CIN capacitor is

highly recommended. A larger value of CIN with respect

to COUT will effect a slower CIN decay rate during shut-

down, thus preventing VOUT from exceeding VIN. In appli-

cations where there is a greater danger of VOUT exceeding

VIN for extended periods of time, it is recommended to

place a Schottky diode from VIN to VOUT (connecting the

cathode to VIN and anode to VOUT). The Schottky diode

forward voltage should be less than 0.45V.

Thermal Considerations and

High Output Current Applications

The AAT4280 is designed to deliver a continuous output

load current. The limiting characteristic for maximum

safe operating output load current is package power dis-

sipation. In order to obtain high operating currents,

careful device layout and circuit operating conditions

need to be taken into account.

The following discussions will assume the load switch is

mounted on a printed circuit board utilizing the minimum

recommended footprint, as stated in the Layout

Considerations section of this datasheet.

At any given ambient temperature (TA), the maximum

package power dissipation can be determined by the fol-

lowing equation:

PD(MAX) [TJ(MAX) - TA]

θJA

Constants for the AAT4280 are maximum junction tem-

perature, TJ(MAX) = 125°C, and package thermal resis-

tance, ΘJA = 120°C/W. Worst case conditions are calcu-

lated at the maximum operating temper ature where TA =

85°C. Typical conditions are calculated under normal

ambient conditions where TA = 25°C. At TA = 85°C,

PD(MAX) = 333mW. At TA = 25°C, PD(MAX) = 833mW.

The maximum continuous output current for the AAT4280

is a function of the package power dissipation and the

RDS of the MOSFET at TJ(MAX). The maximum RDS of the

MOSFET at TJ(MAX) is calculated by increasing the maxi-

mum room temperature RDS by the RDS temperature

coefficient. The temperature coefficient (TC) is

2800ppm/°C. Therefore,

MAX RDS125°C = RDS25°C · (1 + TC · ΔT)

MAX RDS125°C = 120mΩ · (1 + 0.0028 ·

(125°C - 25°C)) = 154mΩ

For maximum current, refer to the following equation:

IOUT(MAX) PD(MAX)

RDS

AAT4280

Slew Rate Controlled Load SwitchSmartSwitchTM

PRODUCT DATASHEET

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For example, if VIN = 5V, RDS(MAX) = 154mΩ and TA =

25°C, IOUT(MAX) = 2.3A. If the output load current were to

exceed 2.3A or if the ambient temperature were to

increase, the internal die temperature would increase,

and the device would be damaged.

Higher peak currents can be obtained with the AAT4280.

To accomplish this, the device thermal resistance must

be reduced by increasing the heat sink area or by oper-

ating the load switch in a duty-cycle manner.

High Peak Output Current Applications

Some applications require the load switch to operate at

a continuous nominal current level with short duration,

high-current peaks. The duty cycle for both output cur-

rent levels must be taken into account. To do so, first

calculate the power dissipation at the nominal continu-

ous current level, and then add in the additional power

dissipation due to the short duration, high-current peak

scaled by the duty factor.

For example, a 4V system using an AAT4280 operates at

a continuous 100mA load current level and has short 2A

current peaks, as in a GSM application. The current peak

occurs for 576μs out of a 4.61ms period.

First, the current duty cycle is calculated:

% Peak Duty Cycle: X/100 = 576μs/4.61ms

% Peak Duty Cycle = 12.5%

The load current is 100mA for 87.5% of the 4.61ms

period and 2A for 12.5% of the period. Since the

Electrical Characteristics do not report RDS(MAX) for 4V

operation, it must be calculated approximately by con-

sulting the chart of RDS(ON) vs. VIN. The RDS reported for

5V can be scaled by the ratio seen in the chart to derive

the RDS for a 4V VIN: 120mΩ · 87mΩ /80mΩ = 130mΩ.

De-rated for temperature: 130mΩ x (1 + 0.0028 ·

(125°C -25°C)) = 166mΩ. The power dissipation for a

100mA load is calculated as follows:

PD(MAX) = IOUT2 · RDS

PD(100mA) = (100mA)2 · 166mΩ

PD(100mA) = 1.66mW

PD(87.5%D/C) = %DC · PD(100mA)

PD(87.5%D/C) = 0.875 · 1.66mW

PD(87.5%D/C) = 1.45mW

The power dissipation for 100mA load at 87.5% duty

cycle is 1.45mW. Now the power dissipation

for the remaining 12.5% of the duty cycle at 2A is calcu-

lated:

PD(MAX) = IOUT2 · RDS

PD(2A) = (2A)2 · 166mΩ

PD(2A) = 664mW

PD(12.5%D/C) = %DC · PD(2A)

PD(12.5%D/C) = 0.125 · 664mW

PD(12.5%D/C) = 83mW

The power dissipation for 2A load at 12.5% duty cycle is

83mW. Finally, the two power figures are summed to

determine the total true power dissipation under the

varied load.

PD(total) = PD(100mA) + PD(2A)

PD(total) = 1.45mW + 83mW

PD(total) = 84.5mW

The maximum power dissipation for the AAT4280 oper-

ating at an ambient temperature of 85°C is 333mW. The

device in this example will have a total power dissipation

of 84.5mW. This is well within the thermal limits for safe

operation of the device; in fact, at 85°C, the AAT4280

will handle a 2A pulse for up to 50% duty cycle. At lower

ambient temperatures, the duty cycle can be further

increased.

Printed Circuit Board

Layout Recommendations

For proper thermal management and to take advantage

of the low RDS(ON) of the AAT4280, a few circuit board

layout rules should be followed: VIN and VOUT should be

routed using wider than normal traces, and GND should

be connected to a ground plane. To maximize package

thermal dispation and power handling capacity of the

AAT4280 SOT23-6/ SC70JW-8 package, the ground

plane area connected to the ground pins should be made

as large as possible. For best performance, CIN and COUT

should be placed close to the package pins.

Evaluation Board Layout

The AA T4280 ev aluation lay out follows the printed circuit

board layout recommendations, and can be used for

good applications layout. Refer to Figures 1 through 3.

Note: Board layout shown is not to scale.

AAT4280

Slew Rate Controlled Load SwitchSmartSwitchTM

PRODUCT DATASHEET

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Figure 1: AAT4280 Evaluation Board Top Side Figure 2: AAT4280 Evaluation Board

Silk Screen Layout / Assembly Drawing. Component Side Layout.

Figure 3: AAT4280 Evaluation Board Solder Side Layout.

AAT4280

Slew Rate Controlled Load SwitchSmartSwitchTM

PRODUCT DATASHEET

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1. XYY = assembly and date code.

2. Sample stock is generally held on all part numbers listed in BOLD.

Ordering Information

Device Option Package Marking1Part Number (Tape and Reel)2

AAT4280-1 SOT23-6 COXYY AAT4280IGU-1-T1

AAT4280-2 SOT23-6 BZXYY AAT4280IGU-2-T1

AAT4280-3 SOT23-6 CJXYY AAT4280IGU-3-T1

AAT4280-1 SC70JW-8 COXYY AAT4280IJS-1-T1

AAT4280-2 SC70JW-8 BZXYY AAT4280IJS-2-T1

AAT4280-3 SC70JW-8 CJXYY AAT4280IJS-3-T1

All AnalogicTech products are offered in Pb-free packaging. The term “Pb-free” means semiconductor

products that are in compliance with current RoHS standards, including the requirement that lead not

exceed 0.1% by weight in homogeneous materials. For more information, please visit our website at

http://www.analogictech.com/aboutus/quality.php.

Package Information

SOT23-6

1.90 BSC

0.95 BSC

0.45

0.15 0.10 BSC

2.85

0.15

0.075

0.40

0.10

1.575

0.125

1.20

0.25

1.10

0.20 2.80

0.20

0.15

0.07 GAUGE PLANE

0.60 REF

All dimensions in millimeters.

AAT4280

Slew Rate Controlled Load SwitchSmartSwitchTM

PRODUCT DATASHEET

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3230 Scott Boulevard, Santa Clara, CA 95054

Phone (408) 737-4600

Fax (408) 737-4611

AnalogicTech cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in an AnalogicTech product. No circuit patent licenses, copyrights, mask work rights, or other intellectual

property rights are implied. AnalogicTech reserves the right to make changes to their products or speciﬁ cations or to discontinue any product or service without notice. Except as provided in AnalogicTech’s terms and

conditions of sale, AnalogicTech assumes no liability whatsoever, and AnalogicTech disclaims any express or implied warranty relating to the sale and/or use of AnalogicTech products including liability or warranties

relating to ﬁ tness for a particular purpose, merchantability, or infringement of any patent, copyright or other intellectual property right. In order to minimize risks associated with the customer’s applications, adequate

design and operating safeguards must be provided by the customer to minimize inherent or procedural hazards. Testing and other quality control techniques are utilized to the extent AnalogicTech deems necessary to

support this warranty. Speciﬁ c testing of all parameters of each device is not necessarily performed. AnalogicTech and the AnalogicTech logo are trademarks of Advanced Analogic Technologies Incorporated. All other

brand and product names appearing in this document are registered trademarks or trademarks of their respective holders.

SC70JW-8

0.225

0.075

0.45

0.10

0.05

2.10

0.30

2.00

0.20

1.75

0.10

0.85

0.15

0.05

1.10 MAX

0.100

2.20

0.20

0.048REF

0.50 BSC 0.50 BSC 0.50 BSC

All dimensions in millimeters.