Product Class : Fixed Resistor·Wire Wound Resistor
★Standard：
▲Q/RU20005.1-98 RXG12 Resistors, fixed, wire-wound, power type, chassis, mounted, detail specification
▲Q/RU20005.2-2002 RXG12-50W Resistors, fixed, wire-wound, power type, chassis, mounted, detail specification
▲Q/RU20005-98 & GJB4154-2001 Resistors, fixed, wire-wound, power type, chassis, mounted, general specification
▲Equivalent standard: MIL-R-18546 ★Parameters and characteristics： Tab.1 Type | Power
W | Dimension (mm) | Nominal resistance
Ω | Resistance tolerance
±% | Environmental temperature
℃ | Area of chassis
cm2 | Class of stability | A
±1.57 | (B) | (D) | E
±1.57 | F
±1.57 | J
±0.79 | K
±0.13 | L
±0.79 | P
±0.13 | RMIN | N
±0.79 | RXG12 | 5 | 28.58 | 12.45 | 11.28 | 15.24 | 6.76 | 16.41 | 2.36 | 8.13 | 1.27 | 2.16 | 1.65 | N:2~1500
G:1~3010 | 1
2
5 | -55-250 | 414 | 1% | 10 | 34.93 | 15.88 | 14.27 | 19.05 | 7.92 | 20.62 | 2.39 | 10.31 | 2.16 | 3.56 | 2.39 | N:2~2210
G:1~4420 | 414 | 20 | 49.23 | 19.84 | 18.26 | 26.97 | 11.13 | 27.79 | 3.18 | 14.27 | 2.16 | 3.56 | 2.39 | N:2~4320
G:1~8660 | 537 | 30 | 70.64 | 21.44 | 39.67 | 49.23 | 11.13 | 29.36 | 3.18 | 15.88 | 2.16 | 3.56 | 2.39 | N:2~13000
G:1~26100 | 537 |
★Main inspection items, methods and requirements: Items | Methods | Requirements | Perform standard：General specification | Direct-current resistance | Item4.6.1：Use measuring tool to measure and its accuracy is ±0.5% | ≤±1% | Solderability | Item4.6.3：235±2℃ 10S | 95 % of the compressed part of terminal is covered a new、even and slick solder pellicle | Terminal strength | Item4.6.4：10W：22N 20W：44N
5W：22N 30W、50W：44N 30S | △R≤±(0.2%R+0.05Ω) | Temperature characteristic | Item4.6.4：-55℃/125℃ 25℃/250℃ | 5W，10W，20W，30W
Resistance value≥20Ω
TCR≤±30×10-6/℃
Resistance value 1Ω~19.6Ω
TCR≤±50×10-6/℃ | 50W
Resistance value≥20Ω
TCR≤±50×10-6/℃
Resistance value 1Ω~19.6Ω
TCR≤±100×10-6/℃ | High temperature exposure (SW、10W、20W、30W) | Item4.6.6：250℃ 2h | ≤±(0.5%R+0.05Ω) | Dielectric withstand voltage | Item4.6.7.1：At the condition of normal air pressure: 5W、10W、20W：1000VAC50W、30W：2000VAC1min
Item 4.6.7.2：4.39KPa500V:5min | No breakdown or flashover
△R≤±(0.2%R+0.05Ω) | Insulationresistance | Item4.6.8：100V 2min | ≥10GΩ | Thermal shock | Item4.6.9：Load rated power，The temperature which achieve thermal equilibrium: -55℃ 15~30min | No breakdown or flashover
△R≤±(0.5%R+0.05Ω) | Short time over-load | Item4.6.10：Load 5 times of rated power 5S | △R≤±(0.5%R+0.05Ω)
No flashover、combustion or scorch | Moisture proof | Item4.6.11：a：loading：Load rated direct voltage
b：Polarization：Direct voltage 100V | △R≤±(1%R+0.05Ω)
Insulation resistance：≥1GΩ，No breakdown | Life | Item4.6.12：a：loading：Load rated direct voltage
b：Polarization：Direct voltage 100V | △R≤±(1%R+0.05Ω)
Insulation resistance：≥10GΩ，No breakdown | Shock | Item4.6.13：1000m/s2、6ms、half-sine wave | △R≤±(1%R+0.05Ω) No breakdown | High frequency vibration | Item4.6.14：10~2000Hz，150m/s2、12h | △R≤±(0.2%R+0.05Ω) |
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