Resistors for Defense & Aerospace
Defense and aerospace platforms (radar transmitters, avionics, UAVs, missile guidance, satellite buses) demand resistors qualified per MIL-PRF-39007, MIL-PRF-55342 or GJB 1432 with full lot traceability. Operating envelopes span -55°C to +200°C, 100,000-foot altitude (low-pressure breakdown), 50 g shock per MIL-STD-883 method 2002, and 20 g random vibration per MIL-STD-810. Radar pulse loads can reach 50 kW peak at < 100 µs duty, requiring non-inductive wirewound elements with < 10 nH lead inductance. Power-supply dummy loads on aircraft 28 VDC and 270 VDC HVDC buses must clear DO-160G section 22 lightning indirect-effects. Hongyi delivers screened parts to MIL-STD-202 method 108 (life test) and 105 (humidity) with PDA (Percent Defective Allowable) ≤ 0.1% and TAA-compliant country-of-origin documentation.
Key Requirements
- Operating range -55°C to +200°C, full performance at 100,000 ft altitude
- Shock 50 g, 11 ms half-sine; random vibration 20 g RMS per MIL-STD-810
- Lot traceability with C of C, QPL listing and country-of-origin per TAA / ITAR
- Non-inductive (< 10 nH) construction for radar pulse and RF dummy loads
- Conformal coating or hermetic seal for salt-fog, sand-dust, and fungus per MIL-STD-810
- Lightning indirect-effects survival per DO-160G section 22 for avionics buses
How to Select
- Specify QPL or QML number when possible — MIL-PRF-39007 (wirewound), MIL-PRF-55342 (chip), GJB 1432B (CN)
- Request 100% group A electrical screening plus group B / C / D quality conformance per spec
- Confirm derating ≥ 50% at +85°C and ≥ 70% at +200°C for hot-spot reliability
- For RF / radar pulse loads, verify inductance < 10 nH and VSWR < 1.2 to 6 GHz
- Specify ITAR / EAR jurisdiction up front; many counter-UAS / missile programs require US-sourced
- Require Certificate of Conformance with lot date, source raw materials, and PIND test (where applicable)
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Frequently asked questions
Are your defense-grade resistors TAA and ITAR compliant?
What screening level do you offer for satellite power supplies?
Can you supply non-inductive resistors for a 5 kW S-band radar dummy load?
Do your parts survive DO-160G section 22 lightning indirect-effects tests?
Sample Request
Standard samples are provided free of charge in reasonable quantities (shipped within 2–3 business days). Custom samples are delivered within 2–4 weeks. Please use the form on the right to tell us:
- Company and contact details
- Target part number or key specs (power / resistance / package)
- Application scenario and estimated annual volume
- Shipping address and expected delivery date