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Aluminum Housed Chassis Mounted Wire Wound Resistor

  • Aluminum Housed Chassis Mounted Wire Wound Resistor
  • Aluminum Housed Chassis Mounted Wire Wound Resistor

Aluminum housed chassis mounted wire wound resistor is made up of a ceramic resistor and a CuNi-cr or Cr-Ni-wire winding resistor. It is connected to the aluminum housing through a special silicone resin, extremely applicable to operations under harsh conditions.

Dimensions
  • Aluminum Housed Chassis Mounted Wire Wound Resistor5W、75W (A) dimensions drawing
  • Aluminum Housed Chassis Mounted Wire Wound Resistor75W(B)、100W、150W、200W dimensions
Dimensions Unit: mm
Type Power (W) A ±0.13 B±0.13 C±0.25 D±0.13 E±0.38 F±0.39 L±1.57 L1±1.57 L3 H±0.76 D1
RX605 5 11.3 12.5 1.3 2.4 16.4 8.5 28.6 15.2 8.2 1.2
RX610 10 14.3 15.9 2.2 2.4 20.3 10.8 35.0 19.0 10.3 2.0
RX615 25 18.3 19.8 2.2 3.2 27.4 13.5 49.3 27.0 13.9 2.0
RX620 50 39.7 21.5 2.2 3.2 28.8 15.6 70.6 50.0 15.5 2.0
RX625 75A 39.7 21.5 2.2 3.2 28.8 15.6 93.0 72.4 15.5 2.0
RX625 75B 93.5 66.5 17.6
RX630 100 125.0 98.0 37
RX635 150 162.0 135.0 55.5
RX640 200 192.0 165.0 70.5
RX645 250 227.0 200.0 88
Parameters
Model Power (W) Dielectric Strength （V） Resistor Range Maximum Voltage Resistance
Inductive Non-inductive
RX605 3（5） 1000 0.1Ω-3.6kΩ 0.5Ω-1kΩ
RX610 10(6) 1000 0.1Ω-6.2kΩ 0.5Ω-1.5kΩ
RX615 25(12.5) 2000 0.1Ω-16kΩ 0.5Ω-10kΩ 550V
RX620 50(20) 2000 0.1Ω-43kΩ 0.5Ω-20kΩ 1250V
RX625 75A(30) 2000 0.1Ω-56kΩ 0.1Ω-27kΩ 1900V
RX625 75B(30) 2000 0.1Ω-56kΩ 0.1Ω-27kΩ 1900V
RX630 100(40) 2500 0.1Ω-75kΩ 0.1Ω-36kΩ 1900V
RX635 150(60) 2500 0.1Ω-100kΩ 0.5Ω-47kΩ 1900V
RX640 200(80) 2500 0.1Ω-150kΩ 1.0Ω-75kΩ 2200V
RX645 250(100) 2500 0.1Ω-180kΩ 1.5Ω-90kΩ 2200V
Derating Curve
  • Aluminum Housed Chassis Mounted Wire Wound Resistor

Derating requirements for high ambient temperature and the installation on cold plate:
Curves A, B, and C are suitable for the operations of non-chassis mounted resistor.
Curve A applies to 605 model and 610 model.
Curve B is suited for 615 model.
Curve C suits 620, 625, 635, 640 and 645 models.

Cold plate size:
605、610 models: 203×203×1 aluminum plate
615model: 231×231×1
520、625、630、635、640 and 645 models: 305×305×3.2 aluminum plate

Performance Requirements
Item Requirement
Solder Ability Surface covered with new solder>95%, △R≤± （1%R+0.05Ω）
Terminal Strength 5W、10W 2.5kg/25W、5kg △R≤±（1%R+0.05Ω）
Resistance To Soldering Heat 275℃ △R≤±（1%R+0.05Ω）
Dielectric Strength ≤10W 1000V, 25W-75W 2000V. 100 W-250 W 2500V △R≤±（1%R+0.05Ω）)
Insulation Resistance >10000MΩ
Thermal Shock Resistance -55℃-+275℃ △R≤±（1%R+0.05Ω）
Short-time Overload 10x rated power, 5s: △R≤±（2%R+0.05Ω）
Moisture Resistance 40℃ △R≤±（2%R+0.05Ω）
Load Life 1000h, 25℃±2℃: △R≤±（5%R+0.05Ω）
Shock Resistance △ R< ± ( 1%R+0.050 )
Vibration AR< ± ( 1%R+0.050 )
Temperature Coefficient ±200PPM/℃

Order requirements: model, power, resistance, non-inductance, resistance tolerance and code of technical standard should be marked.

Order Example
RX615-25W-100Ω-N-±5%-code of technical standard (not necessary if it is not required)

Resistance tolerance code: F=±1% G=±2% J=±5% K=±10%
Inquiry
Contact

Changzhou Southern Electronic Element Factory Co., Ltd.

Add.: West No.6 Building, Xinxin Intelligent Industrial Park, No.1 Xinchang Road, Wuxing Street, Zhonglou District, Changzhou City, Jiangsu Province, P. R. China.
Contact: Safe Liu
Fax: +86-0519-83295710
Tel.: +86-0519-83976620