REV. A 06/05
Specifications are subject to change without notice.
Customers should verify device performance in their specific applications.
L11B Line Feed Resistors w/Thermal Fuse & Overvoltage Protectors
Product Characteristics
Resistor Tolerance
20 ohms to 100 ohms .....................................................±1 %
5.6 ohms .........................................................................±5 %
Ratio Tolerance
20 ohms to 100 ohms ..................................................±0.5 %
5.6 ohms ......................................................................±2.5 %
Operating Temperature.......................................-40 °C to +85 °C
Environmental Characteristics
TESTS PER MIL-STD-202
Humidity ..........................................................................103B
Solderability.....................................................................208D
Thermal Shock ................................................................107B
Resistance to Solvents ......................................................215
Resistance to Solder Heat ..............................................210D
Flammability ...................................................................UL 94V-0
IEC 695-2-2
Functional Characteristics
Bellcore GR-1089-CORE
ITU-T K.20
Lightning Surge................................................................1 KV
Power Induction........................................................600 Vrms
Power Contact..........................................................230 Vrms
UL 497A
FCC Part 68.302 Rules (d) and (e)
Physical Characteristics
Body Style ..........................................................Open Frame SIP
Body Material...........................................................96% Alumina
Lead Frame Material..................................Copper, solder coated
Standard Parts Available Off the Shelf
..................................................5.6, 10, 20, 30, 50, 100 ohms
How To Order
L11B 100AA
Model
(L11B = LFR w/Thermal Fuse and Overvoltage Protectors*)
Resistor Tolerance
• 5R6AA = 5.6 ohms
• 010AA = 10 ohms
• 020AA = 20 ohms
• 030AA = 30 ohms
• 050AA = 50 ohms
• 100AA = 100 ohms
Custom values available; contact factory.
*Specify Overvoltage Protection:
• Specify peak pulse current rating
• Specify minimum turn on voltage
• Provide schematic showing desired configuration
Features
■Thick film technology
■Bourns patented thermal fuse
■Fail safe
■Protection to BELLCORE GR-1089-CORE
Applications
■Analog Line Cards
■CPE (Customer Premises Equipment)
■DDS (Digital Data Systems)
■DLC (Digital Loop Carriers)
■T1/T3 Transmission Lines
■ISDN
R1A
OVERVOLTAGE
PROTECTOR
17 8
R1BF1
5
R2A
915
R2B F2
11
Circuit Schematic
53.59
(2.110)
MAX. SEATED
HEIGHT
MAX.
TYP.
2 PLCS.
12.19
(0.480)
8.89
(.350)
10.16
(.400)
TYP.
2 PLCS.
TYP.
2 PLCS.
5.08
(.200)
THICK
0.51 ±0.25
(.020 x .010)
DIA. HOLE
0.81
(.032)
MAX. THICKNESS
3.81
(.150)
2.54
(.100)
3.175 + 0.64/-0.13
(.125 + .025/-.005)
REF.
0.84
(.033)
Product Dimensions
Circuit Protection Division
Asia-Pacific:
Tel: +886-2 2562-4117
Fax: +886-2 2562-4116
Europe:
Tel: +41-41 768 5555
Fax: +41-41 768 5510
The Americas:
Tel: +1-951 781-5500
Fax: +1-951 781-5700
www.bourns.com
DIMENSIONS: MM
(INCHES)
