412K TELEDYNE | Alldatasheet

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©2003 TELEDYNE RELAYS SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE 412K/422K Page 74 www.teledynerelays.com 412K/422K/1203/Q1 HIGH-PERFORMANCE SERIES 412K 422KHIGH-SHOCK, HIGH-PERFORMANCE TO-5 RELAY DPDT

DESCRIPTION

The TO-5 relay, originally conceived and developed by Teledyne, has become one of the industry standards for low-level switching from dry circuit to 1 ampere. Designed for high- density PC board mounting, its small size and low coil power dissipation make the TO-5 relay one of the most versatile subminiature relays available. The K Series high-shock TO-5 relays are designed to withstand shock levels up to 4000 g’s, .5 millisecond duration. Special material selection and construction details provide assurance that critical elements of the relay structure and mechanism will not be permanently displaced or damaged as a result of extremely high g level shocks. Typical applications:

  • Commercial avionics aircraft control
  • Commercial aircraft control systems
  • Transportation systems (rail/truck) By virtue of their inherently low intercontact capacitance and contact circuit losses, the K Series relays have proven to be excellent subminiature RF switches for applications with frequency ranges well into the UHF spectrum. A typical RF application for the TO-5 relay is in handheld radio transceivers, wherein the combined features of good RF performance, small size, low coil power dissipation and high reliability make it a preferred method of T -R switching (see Figure 1 and 2). PRINCIPLE OF OPERATION 422K Energizing Coil B produces a magnetic field opposing the holding flux of the permanent magnet in Circuit B. As this net holding force decreases, the attractive force in the air gap of circuit A, which also results from the flux of the permanent magnet, becomes great enough to break the armature free of Core B, and snap it into a closed position against Core A. The armature then remains in this position upon removal of power from Coil B, but will snap back to position B upon energizing Coil A. Since operation depends upon cancellation of a magnetic field, it is necessary to apply the correct polarity to the relay coils as indicated on the relay schematic. When latching relays are installed in equipment, the latch and reset coils should not be pulsed simultaneously. Coils should not be pulsed with less than rated coil voltage and the pulse width should be a minimum of three times the specified operate time of the relay. If these conditions are not followed it is possible for the relay to be in the magnetically neutral position. INTERNAL CONSTRUCTION SERIES DESIGNATION RELAY TYPE 412K DPDT high-shock relay 422K DPDT high-shock magnetic-latching relay UPPER STATIONARY CONTACT LOWER STATIONARY CONTACT MOVING CONTACT UNI-FRAME ARMATURE SOFT IRON ARMATURE SOFT IRON CORE B COIL B MAGNETIC CIRCUIT B PERMANENT MAGNET MAGNETIC CIRCUIT A SOFT IRON FRAME COIL A SOFT IRON CORE A AIR GAP STATIONARY CONTACT MOVING CONTACT 412K ENVIRONMENTAL AND PHYSICAL SPECIFICATIONS Temperature (Ambient) –65°C to +125°C Vibration (General Note 1) 30 g’s to 3000 Hz Shock (General Note 1) 75 g’s, 6 msec, half-sine (General Note 4) 4000 g’s, 0.5 msec. axial plane, half-sine 1000 g’s, 0.5 msec side planes, half-sine Acceleration 50 g’s Enclosure Hermetically sealed Weight 0.09 oz. (2.55g) max. 422K ENVIRONMENTAL AND PHYSICAL SPECIFICATIONS Temperature (Ambient) –65°C to +125°C Vibration (General Note 1) 30 g’s to 3000 Hz Shock (General Note 1) 100 g’s, 6 msec, half-sine (General Note 4) 2100 g’s, 0.5 msec. axial plane, half-sine 750 g’s, 0.5 msec side planes, half-sine Acceleration 50 g’s Enclosure Hermetically sealed Weight 0.10 oz. (2.84g) max.

412K/422K Page 75 SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE ©2003 TELEDYNE RELAYS www.teledynerelays.com 412K/422K/1203/Q1 HIGH-PERFORMANCE SERIES 412K/422K GENERAL ELECTRICAL SPECIFICATIONS (–65°C to +125°C unless otherwise noted) (Notes 2 & 3) 412K SERIES RELAY DETAILED ELECTRICAL SPECIFICATIONS (–65°C to +125°C unless otherwise noted) (Note 2) Contact Arrangement 2 Form C (DPDT) Rated Duty Continuous Contact Resistance 412K: 0.1 ohms max. before life; 0.2 ohms max. after life at 1A/28Vdc 422K: 0.15 ohms max. before life; .225 ohms max after life at 1A/28Vdc Contact Load Ratings (DC) (See Fig. 3 for other DC resistive voltage/current ratings) Resistive: 1 Amp/28Vdc Inductive: 200 mA/28Vdc (320 mH) Lamp: 100 mA/28Vdc Low Level: 10 to 50µA/10 to 50mV Contact Load Ratings (AC) Resistive: 250 mA/115Vac, 60 and 400 Hz (Case not grounded) 100 mA/115Vac, 60 and 400 Hz (Case grounded) Contact Life Ratings (Note 6) 10,000,000 cycles (typical) at low level 1,000,000 cycles (typical) at 0.5A/28Vdc resistive 100,000 cycles min. at all other loads specified above Contact Overload Rating 2A/28Vdc Resistive (100 cycles min.) Contact Carry Rating Contact factory Coil Operating Power 412K: 500 mW typ. @ 25°C 422K: 290 mW typ. @ 25°C Operate Time 412K: 2.0 msec max. 422K: 1.5 msec max. Release Time 1.5 msec max. (412K only) Contact Bounce 1.5 msec max. Intercontact Capacitance 0.4 pf typical Insulation Resistance 10,000 megohms min. between mutually isolated terminals Dielectric Strength Atmospheric pressure: 500 Vrms/60Hz 70,000 ft.: 125 Vrms/60Hz Minimum Operate Pulse 4.5 msec width @ rated voltage (422K only) BASE PART NUMBERS 412K-5 412K-6 412K-9 412K-12 412K-18 412K-26 Coil Resistance (Ohms ±10% @25°C) 50 80 160 300 600 1350 } measured 1/8" below header 422K SERIES RELAY DETAILED ELECTRICAL SPECIFICATIONS (–65°C to +125°C unless otherwise noted) (Note 2) BASE PART NUMBERS 422K-5 422K-6 422K-9 422K-12 422K-18 422K-26 Coil Resistance (Ohms ±10% @25°C) 61 120 280 500 1130 2000