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High Precision Axial Moulded Wirewound Resistors - BWW Series

High Precision Axial Moulded Wirewound Resistors - BWW Series

wirewound,precision,resistor

Feature:

  • Axial Moulded Type.
    High Precision.
    High Reliability.
    Excellent load life stability.
    Insulation, Moisture Proof.
    Meets the Standards of MIL-R-93.
Technical Specifcations
Type Rated Watts
at 25°C
(W)
Resistance Range
(Ω)
Tolerance
(%)
TCR
(PPM/°C)
Dimensions (mm)
Min Max A±0.25 ΦB±0.25 Φd F
BWW-0.5 0.5 0.1 100 ±0.1
±0.25
±0.5
±1
±2
±25
±50
±150
7.0 3.0 0.8 27.0
BWW-1 1.0 0.1 1K 11.0 3.0 0.8 31.0
BWW-3 3.0 0.1 10K 15.0 5.2 0.8 34.0
BWW-4 4.0 0.1 15K 18.0 6.5 0.8 38.0
BWW-5 5.0 1 24K 24.0 8.4 1.0 44.0
BWW-10 10.0 1 39K 46.5 10.0 1.0 66.0

Performance
Test Items Test Conditions Specifications
Operating Temp. Range   -55°C ~ 175°C
Insulation Resistance 500V >1GΩ
Dielectric Withstanding Voltage 500V AC 1 Min. ΔR ≤ ±0.1%R
Load Life 70°C on~off cycle 1000 Hrs. ΔR ≤ ±1%R
Moisture-Proof Load Life 40°C 95% RH on~off cycle 21 Hrs. ΔR ≤ ±0.2%R
Resistance to soldering heat 350°C, 3.5s ΔR ≤ ±0.1%R
Solderability 235±5°C, 5s(solder bath method) IEC68-2-20(1968)

How to Order
BWW-1-1W100RFDP
1 23456
1 Part Number
3 Resistance
CodeResistance
0R10.1Ω
100R100Ω
1K1000Ω
5 TCR
CodeTCR
C±25PPM/°C
D±50PPM/°C
K±150PPM/°C
2 Power Rating
4 Resistance Tolerance
CodeResistance Tolerance
B±0.1%
C±0.25%
D±0.5%
F±1%
G±2%
6 Package : P (Bulk)