4B04B-523-RC Datasheet, PDF (1/1 Pages) Bourns Electronic Solutions – Line Protection Network

Features
I Matched pair of resistors
I Power line fault/lightning protection to
BELLCORE GR-1089
I Typical application is secondary
protection on telecom line cards
I Bourns TISP^® products are recommended
for the overvoltage section of the
protection circuit
4B04B-523-RC - Line Protection Network
Matched Pair of Resistors
Electrical Characteristics
Resistance Values (R1 = R2)...............................................15Ω - 60Ω
Resistance Tolerance
>34Ω .........................................................................................±2%
<34Ω .........................................................................................±5%
TCR ...................................................................................100ppm/°C
Ratio Tolerance
>34Ω ......................................................................................±0.5%
<34Ω .........................................................................................±2%
Temperature Range.....................................................-40ºC to +85ºC
Physical Characteristics
Body Style ................................................................Open Frame SIP
Substrate Material .........................................................96% Alumina
Lead Frame Material........................................Copper, solder coated
Flammability .....................................................Conforms to UL94V-0
Functional Characteristics (per Bellcore GR-1089)
First Level Lightning Surge -
Resistors will remain within tolerance after testing.
1000 Volts Peak, 100 Amp Peak Current,
Max. Rise/Min. Decay Time 10x1000µs,
Number of Pulses ..............................25 each resistor each polarity
25 simultaneous each polarity
2500 Volts Peak, 500 Amp Peak Current,
Max. Rise/Min. Decay Time 2x10µs,
Number of Pulses .............................10 simultaneous each polarity
First Level AC Power Fault -
Resistors will remain within tolerance after testing.
50 Vrms, .33 Amp Short Circuit Current,
Duration...........................................................................15 minutes
100 Vrms, .17 Amp Short Circuit Current,
Duration...........................................................................15 minutes
600 Vrms, 1.0 Amp Short Circuit Current,
Duration ........................................................60 One-second pulses
Second Level Lightning Surge -
Resistor package must fail safely causing no fire,
electrical, or framentation hazard.
5000 Volts Peak, 500 Amp Peak Current,
Max. Rise/Min. Decay Time 2x10µs,
Number of Pulses ...............................1 simultaneous each polarity
Second Level AC Power Fault -
Resistor package must fail safely causing no fire,
electrical, or framentation hazard.
Standard Resistance Values
Resistance
(ohms)
20
40
50
Specifications are subject to change without notice.
Resistance
Code
200
400
500
Product Dimensions
51.05
(2.010)
MAX.
12.19
(.480)
1
8.89
(.350)
7.62
(.300)
4
17.78
(.700)
11 14
3.43 ± .381
(.135 ± .015)
DIMENSIONS:
MM
(INCHES)
Electrical Schematic
1.52
(.060)
MAX.
0.36
(.014)
MAX.
R1
R2
1
4 11
14
Break Open Time
100
10
1
SINGLE RESISTOR
BOTH RESISTORS
SIMULTANEOUS
0.1
0.01
10
100
1000
POWER (Watts)
10000
How To Order
4B 04 B - 523 - RC
Model
(4B = Open Frame)
Number of Pins
Physical Configuration
Electrical Configuration
• 523 = Matched Pair of Resistors
Resistance Code
• First 2 digits are significant
• Third digit represents the number of zeros to follow
REV. A
COPYRIGHT© 2001, BOURNS, INC. LITHO IN U.S.A. IP 7/01 N0XXX