Series 431 SPDT Non-Latching Established Reliability / Military Relay ESTABLISHED RELIABILITY MILITARY TO-5 RELAYS SENSITIVE SPDT SERIES RELAY TYPE 431 SPDT basic relay 431D SPDT relay with internal diode for coil transient suppression 431DD SPDT relay with polarity reversal protection and coil transient suppression diode 431T SPDT relay with internal transistor driver and coil transient suppression diode Precious metal alloy contact material with gold plating assures excellent DESCRIPTION high current and dry circuit switching capabilities. The TO-5 relay, originally conceived and developed by Teledyne, has become one of the industry standards for low-level switching from dry circuit The Series 431D and 431DD relays have internal discrete silicon diodes to 1 ampere. Designed specifically for high-density PC board mounting, its for coil suppression and polarity reversal protection. The hybrid 431T relay small size and low coil power dissipation make the 431 relay one of the most features an internal silicon suppression diode and transistor driver. This versatile ultraminiature relays available. hybrid package reduces required PC board floor space by reducing the number of external components needed to drive the relay. The following unique construction features and manufacturing techniques provide excellent resistance to environmental extremes and overall high By virtue of its inherently low intercontact capacitance and contact circuit reliability. losses, the 431 relay has proven to be an excellent ultraminiature RF The 431 feature: switch for frequency ranges well into the UHF spectrum. A typical RF application for the TO-5 relay is in handheld radio transceivers, wherein All welded construction. the combined features of good RF performance, small size, low coil power Unique uni-frame design, providing high magnetic efficiency and dissipation and high reliability make it a preferred method of T-R switching mechanical rigidity. (see Figure 1). High force/mass ratios for resistance to shock and vibration. Advanced cleaning techniques provide maximum assurance of internal cleanliness. ENVIRONMENTAL AND INTERNAL CONSTRUCTION PHYSICAL SPECIFICATIONS Temperature 65C to +125C (Ambient) UNI-FRAME Vibration 30 gs to 500 Hz UPPER (General Note I) STATIONARY CONTACT Shock 75 gs, (General Note I) 6ms half sine ARMATURE LOWER Acceleration 50 gs STATIONARY CONTACT Enclosure Hermetically sealed MOVING Weight 0.109 oz. (3.09g) max. CONTACT 2016 TELEDYNE RELAYS (800) 284-7007 www.teledynerelays.com 431 Page 1 431 032016 Q1INSERTION LOSS Series 431 SPDT Non-Latching Established Reliability / Military Relay SERIES 431 GENERAL ELECTRICAL SPECIFICATIONS (-65 C to 125 C unless otherwise noted. See notes 2 & 3.) Contact Arrangement 1 Form C (SPDT) Rated Duty Continuous Contact Resistance 0.1 max. 0.2 max. afterlife at A / 28 Vdc Resistive: 1 A/ 28 Vdc Inductive: 200 mA/ 28 Vdc (320mH) Contact Load Rating (DC) Lamp: 100 mA / 28 Vdc (320mH) Low level: 10 to 50 A 10 to 50 mV Resistive: 250 mA / 115Vac, 60 and 400 Hz (Case not grounded) Contact Load Rating (AC) 100 mA / 115 Vac, 60 and 400 Hz (Case grounded) 10,000,000 cycles (typical) at low level Contact Life Ratings 1,000,000 cycles (typical) at 0.5 A / 28 Vdc resistive 100,000 cycles min. at all other loads speci ed above Contact Overload Rating 2 A / 28 Vdc Resistive (100 cycles min.) Coil Operating Power 150 mW typical at nominal rated voltage Contact Carry Rating Contact Factory 431 431D 4.0 ms max. Operate Time 431DD 431T 3.5 ms max. 431 2.5 ms max. 431D Release Time 431DD 7.5 ms max. 431T Contact Bounce 1.5 ms max. Intercontact Capacitance 0.4 pf typical Insulation Resistance 10,000 M min. between mutually isolated terminals Dielectric Strength Atmospheric pressure : 500 70,000 ft : 125 (Vrms/60 Hz) Negative Coil 431D Transient 431DD 1.0 max. (Vdc) 431T 431D Diode P.I.V 431DD 100 min. (Vdc) 431T Base Turn Off Voltage (Vdc) 0.3 min 431 Transistor Emitter-Base breakdown Voltage (BV ) (Vdc) 6.0 min EBO Characteristics Collector-Base breakdown Voltage (BV ) (Vdc) (Ic = 100 A) 75 min CBO GENERAL NOTES PERFORMANCE CURVES (Note 2) 1. Relay contacts will exhibit no chatter in TYPICAL RF PERFORMANCE TYPICAL DC CONTACT RATING (RESISTIVE) excess of 10 sec or transfer in excess 0 of 1 sec1 2. Typical characteristics are based on .2 300 available data and are best estimates3 250 No on-going verification tests are .4 performed. 200 10 1.92 3. Unless otherwise specified, parameters 20 1.22 150 are initial values. 30 1.07 4. Relays can be supplied with a spacer 100 40 1.02 pad. See appendix. 50 1.01 50 60 1.00 70 1.00 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 .01 0.5 .1 .5 1.0 LOAD CURRENT (AMPS DC) FREQUENCY (GHz) FIGURE 2 FIGURE 1 431 Page 2 SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE 2016 TELEDYNE RELAYS 431 032016 Q1 RETURN LOSS (VSWR) ISOLATION ACROSS POLES ISOLATION ACROSS CONTACTS dB VSWR LOAD VOLTAGE (VDC)