4B04B-524-RC_11 Datasheet, PDF (1/1 Pages) Bourns Electronic Solutions – Line Protection Module

*RoHS ^{VCEOARMVSAPIOILLINAASBNLTE}
Features
■ RoHS compliant* versions available
■ Matched pair of resistors plus
thermal fuse
■ Power line fault/lightning protection to
BELLCORE GR-1089
■ Typical application is secondary
protection on telecom line cards
■ UL 497A recognition
■ Thermal fuse links
■ Bourns TISP^® products are recommended
for the overvoltage section of the
protection circuit
4B04B-524-RC - Line Protection Module
Matched Pair of Resistors plus Thermal Fuse
Electrical Characteristics
Resistance Values (R1 = R2) .................................15 ohms- 60 ohms
Resistance Tolerance
>34Ω ........................................................................................±2 %
<34Ω ........................................................................................±5 %
TCR ..................................................................................100 ppm/°C
Ratio Tolerance
>34Ω .....................................................................................±0.5 %
<34Ω ........................................................................................±2 %
Temperature Range...................................................-40 ºC to +85 ºC
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 10x1000 µs,
Number of Pulses ..............................25 each resistor each polarity
25 simultaneous each polarity
2500 Volts Peak, 500 Amp Peak Current,
Max. Rise/Min. Decay Time 2x10 µs,
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 2x10 µs,
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
Resistance
Code
200
400
500
*RoHS Directive 2002/95/EC Jan 27, 2003 including Annex.
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
Product Dimensions
51.05
(2.010)
MAX.
12.19
(.480)
14
11 14
8.89
(.350)
7.62
(.300)
17.78
(.700)
3.43 ± .381
(.135 ± .015)
DIMENSIONS:
MM
(INCHES)
Electrical Schematic
R1
R2
1
4 11
14
Break Open Time
3.05
(.120)
MAX.
0.36
(.014)
MAX.
How To Order
4B 04 B - 524 - RC LF
Model
(4B = Open Frame)
Number of Pins
Physical Configuration
Electrical Configuration
• 524 = Matched Pair of Resistors plus Thermal Fuse
Resistance Code
• First 2 digits are significant
• Third digit represents the number of zeros to follow
RoHS Compliant Option
Blank = Standard Product
LF = RoHS Compliant Product
REV. 06/11