Series RF255/RF257 Magnetic-Latching High Power, RF Relay MAGNETIC-LATCHING DPDT HALF-SIZE CRYSTAL CAN HIGH POWER RF RELAY DC-3 GHZ SERIES RELAY TYPE RF255 Commercial Magnetic-Latching, DPDT, High Power, Half-Size Crystal Can Relay RF257 Commercial Magnetic-Latching, DPDT, High Power, Half-Size Crystal Can Relay DESCRIPTION The Series RF255 is an industry-standard, half-size, latching crystal can relay. These relays are highly suitable for high RF power applications (RF Power Handling) and other RF circuits, the RF255/RF257 features: • High repeatability • Broad Bandwidth • Metal enclosure for EMR shielding • Highly resistant to ESD Teledyne Relays’ Series RF255 offers: • All welded construction • Wire leads, gold plated or solder-coated • Matched seal for superior hermeticity • Gold-plated contact assembly • Modernized assembly process • Advanced cleaning techniques The RF257 is a variation of the RF255 featuring a different schematic. SCHEMATIC DIAGRAM RF255 B3 RF257 A2 A1 B3 A2 X1 Y2 Y1 B1 A1 X1 Y2 X2 X2 Y1 B2 A3 B1 B2 A3 As viewed from terminals (Pin numbers are for reference only, not marked on relay) ENVIRONMENTAL AND PHYSICAL SPECIFICATIONS Temperature (Ambient) Storage –65°C to +125°C Operating –55°C to +85°C Vibration (General Note 1) 10 g’s 10 to 500 Hz Shock (General Note 2) 30 g’s, 6ms half sine Enclosure Hermetically sealed Weight 0.46 oz. (13g) max. © 2012 TELEDYNE RELAYS INTERNAL CONSTRUCTION (800) 284-7007 • www.teledynerelays.com RF255/RF257 Page 1 RF255\RF257\062012\Q2\ Series RF255/RF257 Magnetic-Latching High Power, RF Relay SERIES RF255/RF257 TYPICAL RF CHARACTERISTICS (See RF Notes) VSWR Between Contacts (RF Note 6) 3 2.8 2.6 2.4 VSWR 2.2 2 1.8 1.6 1.4 1.2 1 0 0.5 1 1.5 2 2.5 3 Frequency ( GHz ) Insertion Loss Across Contacts (RF Note 6) 0 -0.5 Insertion Loss ( dB ) -1 -1.5 -2 -2.5 -3 0 0.5 1 1.5 2 2.5 3 Frequency ( GHz ) Isolation Across Contacts (RF Note 4) Isolation Pole-to-Pole 0 0 -10 -10 -20 Isolation ( dB ) Isolation ( dB ) -20 -30 -30 -40 -50 -40 -60 -70 -50 0 0.5 1 1.5 Frequency ( GHz ) 2 2.5 3 0 0.5 1 1.5 2 2.5 3 Frequency ( GHz ) RF NOTES 1. 2. 3. 4. 5. 6. 7. Test conditions: Fixture: .031" copper clad, reinforced PTFE, RT/duroid® 6002 with SMA connectors. (RT/duroid® is a registered trademark of Rogers Corporation.) b. Room ambient temperature. c. Terminals not tested were terminated with 50-ohm load. d. Contact signal level: –10 dBm. e. No. of test samples: 4. Data presented herein represents typical characteristics and is not intended for use as specification limits. Data is per pole, except for pole-to-pole data. Data is the average from readings taken on all open contacts. Data is the average from readings taken on poles with de-energized. Data is the average from readings taken on all closed contacts. Test fixture effect de-embedded from frequency response data. RF255/RF257 Page 2 a. SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE © 2012 TELEDYNE RELAYS RF255\RF257\062012\Q2 Series RF255/RF257 Magnetic-Latching High Power, RF Relay SERIES RF255/RF257 TYPICAL RF CHARACTERISTICS (See RF Notes) RF255/RF257 RF POWER HANDLING CAPABILITY 1000 Hot Switched Carry RF POWER, Watts 300 200 100 10 1 1 10 100 1,000 3,000 FREQUENCY, MHz Test Notes: 1. Test condition: Ambient temperature and pressure 2. Hot switched cycle rate: 1/3 Hz 3. Matched load: 1.2:1 maximum © 2012 TELEDYNE RELAYS (800) 284-7007 • www.teledynerelays.com RF255/RF257 Page 3 RF255\RF257\062012\Q2\ Series RF255/RF257 Magnetic-Latching High Power, RF Relay SERIES RF255/RF257 GENERAL ELECTRICAL SPECIFICATIONS (@ 25°C) Contact Arrangement 2 Form C (DPDT) Contact Resistance Low Level: 0.050Ω maximum before life 0.150Ω maximum after life High Level: 0.050Ω maximum before life 0.100Ω maximum after life Low level: Resistive: Contact Load Rating (Case Grounded) 10 to 50 μA @ 10 to 50 mV, 1,000,000 2A @ 28Vdc, 100,000 cycles .15A @ 115Vac, 60 and 400Hz, 100,000 cycles Lamp: 0.16A @ 28Vdc, 100,000 cycles Intermediate Current: 0.1A @ 28Vdc, 50,000 cycles Inductive: 0.75A @ 28Vdc, 200mH, 100,000 cycles Contact Bounce 3.0 ms maximum Contact Overload Rating 4A/28Vdc Resistive (100 cycles min.) Operate Time 4ms maximum over the temperature range with rated coil voltage Insulation Resistance 1,000 MΩ minimum, except the resistance between coil and case at high temperature shall be 500MΩ or greater Between case, frame, or enclosure and all contacts in the latched and non-latched positions Dielectric Strength Sea Level Altitude 1,000 Vrms (60Hz) 350 Vrms (60Hz) Between case, frame, or enclosure and coils 500 Vrms (60Hz) Between all contacts and coils 1,000 Vrms (60Hz) 1,000 Vrms (60Hz) Between open contacts in the latched and non-latched positions 500 Vrms (60Hz) 1,000 Vrms (60Hz) Between Coils 500 Vrms (60Hz) 1,000 Vrms (60Hz) Between contact poles 1,000 Vrms (60Hz) 1,000 Vrms (60Hz) 1,000 Vrms (60Hz) 9ms @ rated voltage Minimum Operate Pulse DETAILED ELECTRICAL SPECIFICATIONS (@25°C) RF255-5 RF257-5 RF255-6 RF257-6 RF255-12 RF257-12 RF255-26 RF257-26 5.0 6.7 6.0 8.0 12.0 16.0 26.5 32.0 45 63 254 1000 Min. Max. 1.0 3.8 1.3 4.5 2.6 9.0 5.2 18.0 Min. @ 25°C Max. @ 25°C 1.6 2.7 2.0 3.25 4.0 6.5 8.0 13.0 BASE PART NUMBERS Coil Voltage, Nominal (Vdc) Nom. Max. Coil Resistance (Ohms ±10%, 25°C) Set/Reset Voltage (Vdc) Teledyne Part Numbering System for RF255/RF257 RF255 Relay Series (Commercial) - 12 / Q Lead Finish G = .187” gold-plated wire lead Q = .187” solder-coated wire lead Blank = .187” gold-plated or solder-coated wire lead (See Note 6) Coil Voltage 5 = 5Vdc 6 = 6Vdc 12 = 12Vdc 26 = 26.5Vdc RF255/RF257 Page 4 SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE © 2012 TELEDYNE RELAYS RF255\RF257\062012\Q2 Series RF255/RF257 Magnetic-Latching High Power, RF Relay SERIES RF255/RF257 OUTLINE DIMENSIONS RF255 B3 A2 A1 X1 Y2 X2 Y1 B2 B1 A3 RF257 B3 A2 A1 X1 Y2 X2 Y1 B1 .030 (.762) +.003 (+.076) –.002 (–.051) .187 ±.020 (4.75 ±.051) GOLD-PLATED LEAD-FREE .030 (.762) +.003 (+.076) –.002 (–.051) .187 ±.030 (4.75 ±.051) B2 A3 SCHEMATIC (Coil X Last Energized) (Bottom View) WIRE LEAD SOLDER COATED (SEE PART NUMBER EXAMPLE) GENERAL NOTES 1. Vibration (sinusoidal): MIL-STD-202, method 204, test condition D (except frequency shall be 10 to 2,500 Hz). Contact chatter shall not exceed 10μs maximum for closed contacts, and 1μs maximum closure for open contacts. Vibration (random): MIL-STD-202, method 214, test condition IG. Contact chatter shall not exceed 10μs maximum for closed contacts, and 1μs maximum closure for open contacts (applicable to qualification and group C testing only). 2. Shock (half-sine pulse): MIL-STD-202, method 213, test condition C (100 g’s). Contact chatter shall not exceed 10μs maximum for closed contacts, and 1μs maximum closure for open contacts. 3. Dimensions are in inches. Metric equivalents in parentheses for reference only. 4. Unless otherwise specified, tolerance is ±.010 (0.25mm). 5. Indicated terminal is marked with a contrasting bead. 6. Unless otherwise specified, relays will be supplied with either gold-plated or solder coated leads. The slash and characters appearing after the slash are not marked on the relay. 7. When latching relays are installed in equipment, the latch and reset coils should not be pulsed simultaneously. 8. Each relay possesses high-level and low level capabilities. However, relays previously tested or used above 10mA resistive at 6Vdc maximum or peak ac open circuits not recommended for subsequent use in low-level applications. 9. Relays may be subjected to 260°C (1 minute) peak solder reflow temperature. © 2012 TELEDYNE RELAYS (800) 284-7007 • www.teledynerelays.com RF255/RF257 Page 5 RF255\RF257\062012\Q2\