Features

  • TO-5 and Centigrid relay families in DPDT latching and non-latching configurations with up to 10 million cycle life

  • JAN-qualified relay families per MIL-PRF-39016 and MIL-PRF-28776 at A, B, JAN-L, and JAN-M screening levels

  • High-temperature variants (412H series): -65 degrees C to +200 degrees C, vibration to 380 g's, 10 million cycle life, DPDT

  • High-shock variants (412K series): shock to 4,000 g's, -65 degrees C to +125 degrees C, DPDT latching and non-latching

  • Internal diode options: D suffix for coil transient suppression; DD suffix adds polarity reversal protection

  • TTL and CMOS driver variants: TN suffix for transistor driver; 122C with internal MOSFET driver for direct microprocessor control

Benefits

  • Hermetically sealed all-welded construction provides moisture and contamination protection without secondary sealing in harsh operating environments

  • Precious metal contact alloys with gold plating deliver reliable switching across the full rated cycle life from dry circuit to 1A/28Vdc

  • Magnetic latching eliminates continuous coil current -- meaningful for battery-operated, low-power, or multi-relay designs where coil dissipation adds up

  • Internal diode options reduce external driver component count and board area while protecting relay driver circuits from back-EMF

  • QPL qualification provides documented supply chain assurance for programs that cannot accept unqualified components

  • A and B level screening, ground pin options, and additional spreader pad configurations give program engineers practical QPL flexibility

Applications

  • Defense avionics, missile electronics, and shipboard systems requiring JAN-qualified DPDT relays per MIL-PRF-39016 or MIL-PRF-28776

  • High-temperature aircraft engine control and airborne electronics applications requiring relays rated to +200 degrees C

  • High-shock munitions and pyrotechnic control systems requiring relays rated to 4,000 g shock pulses

  • RF signal routing and attenuator networks in ATE, communications, and EW systems using TO-5 RF relay variants

  • High-density PCB signal switching using Centigrid through-hole or surface-mount relay families

  • Low-power portable radio and handheld instrument transmit-receive switching using TO-5 latching relay designs

Specifications

  • Standard contact load: Resistive: 1A/28Vdc; Inductive: 200mA/28Vdc; Lamp: 100mA/28Vdc; Low level: 10-50 uA/10-50 mVdc

  • JAN relay contact load: Resistive: 2A/28Vdc; A and B screening levels per MIL-PRF-39016 and MIL-PRF-28776

  • High-temperature (412H): -65 degrees C to +200 degrees C; vibration to 380 g's; 10 million cycle life; DPDT

  • High-shock (412K): Shock to 4,000 g's; -65 degrees C to +125 degrees C; DPDT latching and non-latching

  • Operate time (HR412 space): 2.0 ms maximum at rated coil voltage

  • Hermetic seal: 1 x 10-6 atm-cm3/s standard; 1 x 10-8 atm-cm3/s on HR255 space-grade series​