The Potter & Brumfield T77 is a miniature PCB relay with a single form A SPST-NO contact arrangement, rated for 3A at 250VAC or 30VDC, and uses an AgNi contact material. It has a 5VDC coil with 200mW power consumption, a 125Ω coil resistance, and an operating temperature range of -30°C to +105°C. The relay features 4000Vrms coil-to-contact dielectric strength, 6.4mm creepage and 3.2mm clearance between coil and contacts, and is rated for 100×10³ electrical operations. It is enclosed in a wash-tight case, measures 18.2mm × 10.2mm × 14.7mm, weighs 9g, and uses solder pin termination. It complies with IEC 61810-1 and is certified to UL E29244 and VDE 40010327. The coil insulation system meets UL Class F. The part is designed for general-purpose applications in appliances, HVAC, and industrial control.
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General Purpose Relay SPST-NO (1 Form A) 5VDC Coil Through Hole
RELAY GEN PURPOSE SPST 3A 5V
| TE Connectivity | DigiKey | Powell Electronics, Inc. | Acme Chip Technology Co., Limited | |
|---|---|---|---|---|
| Product Category | Electromechanical Relays | Electromechanical Relays | Electromechanical Relays | High Voltage Relays |
| Product Number | 2-1393194-5 | 2-1393194-5-ND | 2-1393194-5 | 2-1393194-5 |
| Product Name | Electromechanical Relays & Contactors | Power Relays, Over 2 Amps | Relays | Relays - Power Relays, Over 2 Amps |
| Approvals | EU ELV Compliant; RoHS | |||
| Operating Temp | -22 to 221 F (-30 to 105 C) | -22 to 221 F (-30 to 105 C) | -22 to 221 F (-30 to 105 C) | |
| AC Voltage | 277 volts | |||
| DC Voltage | 30 volts | |||
| DC Power | 0.2000 watts |