LL4148, LL4448
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Rev. 2.0, 14-Jul-17 1Document Number: 85557
For technical questions within your region: DiodesAmericas@vishay.com, DiodesAsia@vishay.com, DiodesEurope@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
Small Signal Fast Switching Diodes
DESIGN SUPPORT TOOLS click logo to get started
MECHANICAL DATA
Case: MiniMELF (SOD-80)
Weight: approx. 31 mg
Cathode band color: black
Packaging codes / options:
GS18/10K per 13" reel (8 mm tape), 10K/box
GS08/2.5K per 7" reel (8 mm tape), 12.5K/box
FEATURES
• Silicon epitaxial planar diode
• Electrical data identical with the devices 1N4148
and 1N4448 respectively
• AEC-Q101 qualified
• Material categorization:
for definitions of compliance please see
www.vishay.com/doc?99912
APPLICATIONS
• Extreme fast switches
Note
(1) Valid provided that electrodes are kept at ambient temperature
Note
(1) Valid provided that electrodes are kept at ambient temperature
Available
Models
PARTS TABLE
PART TYPE DIFFERENTIATION ORDERING CODE TYPE MARKING CIRCUIT
CONFIGURATION REMARKS
LL4148 VRRM = 100 V,
VF = max. 1000 mV at IF = 50 mA LL4148-GS08 or LL4148-GS18 - Single Tape and reel
LL4448 VRRM = 100 V,
VF = max. 1000 mV at IF = 100 mA LL4448-GS08 or LL4448-GS18 - Single Tape and reel
ABSOLUTE MAXIMUM RATINGS (Tamb = 25 °C, unless otherwise specified)
PARAMETER TEST CONDITION SYMBOL VALUE UNIT
Repetitive peak reverse voltage VRRM 100 V
Reverse voltage VR75 V
Peak forward surge current tp = 1 μs IFSM 2A
Repetitive peak forward current IFRM 500 mA
Forward continuous current IF300 mA
Average forward current VR = 0 IF(AV) 150 mA
Power dissipation (1) Ptot 500 mW
THERMAL CHARACTERISTICS (Tamb = 25 °C, unless otherwise specified)
PARAMETER TEST CONDITION SYMBOL VALUE UNIT
Thermal resistance junction to ambient air (1) RthJA 300 K/W
Junction temperature TJ175 °C
Storage temperature range Tstg -65 to +175 °C
LL4148, LL4448
www.vishay.com Vishay Semiconductors
Rev. 2.0, 14-Jul-17 2Document Number: 85557
For technical questions within your region: DiodesAmericas@vishay.com, DiodesAsia@vishay.com, DiodesEurope@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
TYPICAL CHARACTERISTICS (Tamb = 25 °C, unless otherwise specified)
Fig. 1 - Forward Current vs. Forward Voltage
Fig. 2 - Forward Current vs. Forward Voltage
Fig. 3 - Reverse Current vs. Reverse Voltage
Fig. 4 - Diode Capacitance vs. Reverse Voltage
ELECTRICAL CHARACTERISTICS (Tamb = 25 °C, unless otherwise specified)
PARAMETER TEST CONDITION PART SYMBOL MIN. TYP. MAX. UNIT
Forward voltage
IF = 5 mA LL4448 VF0.620 0.720 V
IF = 50 mA LL4148 VF0.860 1 V
IF = 100 mA LL4448 VF0.930 1 V
Reverse current
VR = 20 V IR25 nA
VR = 20 V, Tj = 150 °C IR50 μA
VR = 75 V IR5μA
Breakdown voltage IR = 100 μA, tp/T = 0.01,
tp = 0.3 ms V(BR) 100 V
Diode capacitance VR = 0 V, f = 1 MHz,
VHF = 50 mV CD4pF
Reverse recovery time
IF = IR = 10 mA,
iR = 1 mA trr
8
ns
IF = 10 mA, VR = 6 V,
iR = 0.1 x IR, RL = 100 Ω4
0 0.4 0.8 1.2 1.6
0.1
1
10
100
1000
I - Forward Current (mA)
F
V
F
- Forward Voltage (V)
2.0
94 9096
LL4148
Scattering Limit
T
j
= 25 °C
94 9097
T
j
=25°C
LL4448
Scattering Limit
0 0.4 0.8 1.2 1.6
0.1
1
10
100
1000
I - Forward Current (mA)
F
V
F
- Forward Voltage (V)
2.0
1
10
100
1000
I
R
- Reverse Current (nA)
V
R
- Reverse Voltage (V)
10 1 100
94 9098
T
j
= 25 °C
Scattering Limit
0.1 1 10
0
0.5
1.0
1.5
2.0
3.0
C
D
- Diode Capacitance (pF)
100
94 9099
2.5
V
R
- Reverse Voltage (V)
f = 1 MHz
T
j
= 25 °C
LL4148, LL4448
www.vishay.com Vishay Semiconductors
Rev. 2.0, 14-Jul-17 3Document Number: 85557
For technical questions within your region: DiodesAmericas@vishay.com, DiodesAsia@vishay.com, DiodesEurope@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
PACKAGE DIMENSIONS in millimeters (inches): MiniMELF (SOD-80)
Cathode indentification
0.47 (0.019) max.
2.5 (0.098) max. 1.25 (0.49) min.
3.7 (0.146)
3.3 (0.130)
5 (0.197) ref.
2 (0.079) min.
1.6 (0.063)
1.4 (0.055)
Foot print recommendation:
*
* The gap between plug and glass can
be either on cathode or anode side
Document no.:6.560-5005.01-4
Rev. 8 - Date: 07.June.2006
96 12070
Legal Disclaimer Notice
www.vishay.com Vishay
Revision: 08-Feb-17 1Document Number: 91000
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