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4B04B Datasheet(PDF) 1 Page - Bourns Electronic Solutions

Part No. 4B04B
Description  Thick Film Surge Resistor Networks
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Maker  BOURNS [Bourns Electronic Solutions]
Homepage  http://www.bourns.com
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4B04B Datasheet(HTML) 1 Page - Bourns Electronic Solutions

   
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S ecifications are s bject to change itho t notice
115
4B04B - Thick Film Surge Resistor Networks
4B04B-501 (Pair of Matched Resistors)
Product Characteristics
Resistance Values ......................................................20
Ω - 100Ω
Resistance Tolerance ............................................................±1%
TCR.............................................................................100ppm/°C
Ratio Tolerance..............................................>34
Ω............±0.5%
..............................................<34
Ω...............±1%
Power Dissipation (per resistor) @ 25ºC ..................................2W
Temperature Range ............................................-55ºC to +125ºC
Environmental Characteristics
TESTS PER MIL-STD-202 ..............................................
∆R MAX.
Resistance to Solvents .........................No Marking Deterioration
Resistance to Solder Heat....................................±0.5% or 0.5
Ω,
whichever is greater
Solderability ........................................................>95% Coverage
Insulation Resistance ..........................10 M
Ω min. (isolated pins)
Bias Humidity Test ..........................................50V/85% RH/85°C
Functional Characteristics
Lightning Surge Test
Bellcore Spec GR-1089
10 x 1000
µsec .................1 kV
2 x 10
µsec ....................2.5 kV
ITU-T K.20
10 x 700
µsec ...................2 kV
Power Cross Test .............................................Per Bellcore spec.
(Vrms applied vary with resistance values)
Physical Characteristics
Body Style ..........................................................Open Frame SIP
Body Material...........................................................96% Alumina
Lead Frame Material..................................Copper, solder coated
Standard Parts Available Off the Shelf ........................50
Ω, 100Ω
4B04B-502 (Resistor with Thermal Fuse)
Product Characteristics
Resistance Values .....................................................5.6
Ω - 100Ω
Resistance Tolerance......................1% (optional), 5% (standard)
TCR ...................................................................800 ±200ppm/°C
Power Dissipation @ 25ºC.......................................................2W
Temperature Range............................................-55ºC to +125ºC
Functional Characteristics
Lightning Surge Test
Bellcore Spec GR-1089
10 x 1000
µsec ..................1 kV
2 x 10
µsec .....................2.5 kV
Power Cross Test ............................................Per Bellcore spec.
(Vrms applied vary with resistance values)
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
Ω, 10Ω, 34Ω
17
13
19
50.80
(2.000)
15.24
(0.600)
15.24
(0.600)
15.24
(0.600)
15.24
(0.600)
TYP.
0.36 Max.
(.014 Max.)
2.29 Max.
(.090 Max.)
12.70
(0.500)
MAX.
How To Order
4B 04 B - 50X - XXX
Model
(4B = Open Frame)
Number of Pins
Physical Configuration
Electrical Configuration
• 501 = Pair of Matched Resistors
Resistance Code
• First 2 digits are significant
• Third digit represents the
number of zeros to follow
How To Order
4B 04 B - 50X - XXX J
Model
(4B = Open Frame)
Number of Pins
Physical Configuration
Electrical Configuration
• 502 = Resistor with Thermal Fuse
Resistance Code
• First 2 digits are significant
• Third digit represents the
number of zeros to follow
5% tolerance
Features
s
Over-voltage/lightning protection to
Bellcore GR-1089 & ITU-T K.20
s
Standard “off the shelf” designs
s
Typical application is secondary
protection on telecom line cards
s
Custom versions available, including
SMD solutions and fuse technology
(contact factory)
User must short pins 3 & 4 on the circuit board
Governing dimensions are in mm.
Dimensions in parenthesis are inches
and are approximate.
12
3
4
25.40
±.50
(1.000
±.020)
2.54
±.127
(.100
±.005)
17.78
±.254
(0.700
±.010)
TYP.
MAX.
0.36 Max.
(.014 Max.)
1.40 Max.
(.055 Max.)
3.05 Max.
(.120 Max.)
11.30
(0.445)
2.54
±.127
(.100
±.005)
Functional Schematic


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