I. Model Breakdown

301: Series (Songchuan 301 Automotive Relay)

1C: 1 Changeover Contact (SPDT; 5 pins: Common / NO / NC + 2 Coil pins)

C: Terminal Style (PCB / Blade)

D1: Coil with Freewheeling Diode (Reverse Voltage Protection)

U05: Sealing / Environmental Rating (Often omitted)

II. Key Parameters (12V/24V Versions)

Coil Voltage: 12VDC or 24VDC

Contact Form: SPDT (1 NO, 1 NC; 5 pins)

Contact Capacity:

Normally Open (NO): 35A @ 14VDC; 15A @ 28VDC

Normally Closed (NC): 20A @ 14VDC; 10A @ 28VDC

Coil Parameters (at 23°C):

12V: 98mA, 123Ω, 1.2W

24V: 50mA, 483Ω, 1.2W

Temperature Range: -40°C to +125°C

Structure: Plastic Sealed, 5-pin, ISO280 Standard, AgSnO Contacts

Certifications: RoHS, ELV

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