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Song Chuan Group
General Purpose Signal Relays

Song Chuan Group- General Purpose Signal Relays

Song Chuan Group, established in 1974, is a specialized relay manufacturer headquartered in Taipei, Taiwan. The company has accumulated over 35 years of expertise in relay design, development, and mass production. Its core business revolves around electromechanical relays for automotive, industrial, and consumer applications. Song Chuan offers a comprehensive product range including automotive relays, power relays, signal relays, PCB relays, and solid-state relays. Key series such as the SCH (automotive), SCT (industrial control), and SCB (power switching) are widely adopted. The group's R&D capabilities cover new product development, testing, production equipment design, mold fabrication, and process optimization. With a strong focus on quality and reliability, Song Chuan has built an excellent reputation among global clients. It operates a vertically integrated manufacturing model from component production to final assembly, ensuring consistent quality. The company serves major OEMs and Tier 1 suppliers in the automotive, home appliance, and industrial electronics sectors. Recognized for durability, high performance, and compliance with international standards, Song Chuan is a trusted relay partner in the global electronic components market.

General Purpose Signal Relays - 型号列表

9 parts in total

Mfr Part #	Quantity Available	Price	Product Category	RoHS	Current	Release Time	Pick Up Voltage	Voltage - Supply	Contact Resistance	Insulation Resistance	Voltage Dropout (Max)	Power - Average Forward	DC Resistance (DCR) (Max)	Weight	Contact Form	Mounting Type	Contact Material	Contact Layout, Typical	Type	Function	Card Standard	Electrical Life	Vibration	Operate Time	Mechanical Life	Operating Range	Shock Resistance	Operating Temperature	Load Type	Voltage - Breakdown	Contact Rating (Current)	Contact Rating @ Voltage	Dielectric Strength, Contact to Contact	Voltage - Continuous Operating (Max) (MCOV)	Series	Features	Coil Current	Current Rating (Max)	Coil Type	Delay Time	Switching Voltage	Load - Max Switching	Voltage - Rated AC (Phase to Phase)	Packaging	Terminal - Width	Termination Style	Resistive Material	Contact Tail Length	Dielectric Diameter	Contact Length - Post	Ingress Protection
2 731-TPDT-C-12VDC Low Signal Relays - PCB TPDT 10A 12VDC Electromechanical Relay 3PDT 10A 12VDC 120Ohm Plug-In Power Relay • Coil Voltage: 12 VDC • Contact Configuration: 3PDT (3 Form C) • Current : 10 A • Mounting: 0.187 Terminals • Operating Function: Single Side Stable Song Chuan	50	1: ¥143.14	Low Signal Relays - PCB	RoHS Compliant	10 Amps	20 ms Max.	75% of rated voltage	12 VDC	50 Mohm Max. (for 731) / 100 Mohm Max. (for 731H)	1000Mohm Min. (DC 500V)	10% of rated voltage	1.2 W	120 ohm	Approx. 79.2g	2 Form D (DPDT-MB)	Base Mount	AgCdO alloy	3C 3PDT	Standard	Single Side Stable	General Purpose Relay	100,000 operations (frequency 1,200 operations/hr) (for 731) / 50,000 operations (frequency 360 operations/hr) (for 731H)	10 to 50Hz, double amplitude 1.5 mm	20 ms Max.	10,000,000 operations (frequency 18,000 operations/hr)	10 to 50Hz, double amplitude 1.0 mm	100G	-40 to +70?C (no freezing) (for 731) / AC Coil: -45 to +55?C (no freezing) , DC Coil: -45 to +65?C (no freezing) (for 731H)	10 A 28 VDC, 10A 240 VAC	AC 1500V 50/60Hz 1 min. (for 731) / AC 2500V 50/60Hz 1 min. (for 731H)	10 A	10 A at 28 VDC	AC 500V 50/60Hz 1 min. (for 731) / AC 1000V 50/60Hz 1 min. (for 731H)	140% of rated voltage	731	Dust cover	100 mA	100 mA	-	-	-	-	-	-	-	-	-	-	-	-	-
2 731-TPDT-C-24VDC Low Signal Relays - PCB TPDT10A24VDC Electromechanical Relay 3PDT 10A 24VDC 472Ohm Plug-In Power Relay • Coil Voltage: 24 VDC • Contact Configuration: 3PDT (3 Form C) • Current : 10 A • Mounting: 0.187 Terminals • Operating Function: Single Side Stable Song Chuan	200	1: ¥169.456	Low Signal Relays - PCB	RoHS Compliant	10 Amps	20 ms Max.	75% of rated voltage	24 VDC	50 Mohm Max. (for 731) / 100 Mohm Max. (for 731H)	1000Mohm Min. (DC 500V)	10% of rated voltage	1.2 W	472 ohm	Approx. 79.2g	2 Form D (DPDT-MB)	Base Mount	AgCdO alloy	3C 3PDT	Standard	Single Side Stable	General Purpose Relay	100,000 operations (frequency 1,200 operations/hr) (for 731) / 50,000 operations (frequency 360 operations/hr) (for 731H)	10 to 50Hz, double amplitude 1.5 mm	20 ms Max.	10,000,000 operations (frequency 18,000 operations/hr)	10 to 50Hz, double amplitude 1.0 mm	100G	-40 to +70?C (no freezing) (for 731) / AC Coil: -45 to +55?C (no freezing) , DC Coil: -45 to +65?C (no freezing) (for 731H)	10 A 28 VDC, 10A 240 VAC	AC 1500V 50/60Hz 1 min. (for 731) / AC 2500V 50/60Hz 1 min. (for 731H)	10 A	10 A at 28 VDC	AC 500V 50/60Hz 1 min. (for 731) / AC 1000V 50/60Hz 1 min. (for 731H)	140% of rated voltage	731	Dust cover	51 mA	51 mA	-	-	-	-	-	-	-	-	-	-	-	-	-
3 731-DPDT-C-24VDC Low Signal Relays - PCB DPDT 10A 24VDC Electromechanical Relay DPDT 10A 24VDC 472Ohm Plug-In Power Relay • Coil Voltage: 24 VDC • Contact Configuration: DPDT (2 Form C) • Current : 10 A • Mounting: 0.187 Terminals • Operating Function: Single Side Stable Song Chuan	147	1: ¥49.368	Low Signal Relays - PCB	RoHS Compliant	10 Amps	20 ms Max.	75% of rated voltage	24 VDC	50 Mohm Max. (for 731) / 100 Mohm Max. (for 731H)	1000Mohm Min. (DC 500V)	10% of rated voltage	1.2 W	472 ohm	Approx. 79.2g	2 Form C (DPDT-BM)	Plug-in - 8 Pin Blade	AgCdO alloy	2C DPDT	Standard	Single Side Stable	General Purpose Relay	100,000 operations (frequency 1,200 operations/hr) (for 731) / 50,000 operations (frequency 360 operations/hr) (for 731H)	10 to 50Hz, double amplitude 1.5 mm	20 ms Max.	10,000,000 operations (frequency 18,000 operations/hr)	10 to 50Hz, double amplitude 1.0 mm	100G	-40 to +70?C (no freezing) (for 731) / AC Coil: -45 to +55?C (no freezing) , DC Coil: -45 to +65?C (no freezing) (for 731H)	10 A 28 VDC, 10A 240 VAC	AC 1500V 50/60Hz 1 min. (for 731) / AC 2500V 50/60Hz 1 min. (for 731H)	10 A	10 A at 28 VDC	AC 500V 50/60Hz 1 min. (for 731) / AC 1000V 50/60Hz 1 min. (for 731H)	140% of rated voltage	731	Dust cover	51 mA	51 mA	-	-	-	-	-	-	-	-	-	-	-	-	-
2 731-DPDT-C-240VAC Low Signal Relays - PCB DPDT 10A 240VAC Power Relay • Coil Voltage: 240 VAC • Contact Configuration: DPDT (2 Form C) • Current : 10 A • Mounting: 0.187 Terminals • Operating Function: Single Side Stable Song Chuan	127	1: ¥48.144	Low Signal Relays - PCB	RoHS Compliant	10 Amps	20 ms Max.	85% of rated voltage	240 VAC	50 Mohm Max. (for 731) / 100 Mohm Max. (for 731H)	1000Mohm Min. (DC 500V)	30% of rated voltage	2 VA	9110 ohm	Approx. 79.2g	2 Form C (DPDT-BM)	Plug-in - 8 Pin Blade	AgCdO alloy	2C DPDT	Standard	Single Side Stable	General Purpose Relay	100,000 operations (frequency 1,200 operations/hr) (for 731) / 50,000 operations (frequency 360 operations/hr) (for 731H)	10 to 50Hz, double amplitude 1.5 mm	20 ms Max.	10,000,000 operations (frequency 18,000 operations/hr)	10 to 50Hz, double amplitude 1.0 mm	100G	-40 to +70?C (no freezing) (for 731) / AC Coil: -45 to +55?C (no freezing) , DC Coil: -45 to +65?C (no freezing) (for 731H)	10 A 28 VDC, 10A 240 VAC	AC 1500V 50/60Hz 1 min. (for 731) / AC 2500V 50/60Hz 1 min. (for 731H)	10 A	10 A at 240 VAC	AC 500V 50/60Hz 1 min. (for 731) / AC 1000V 50/60Hz 1 min. (for 731H)	110% of rated voltage	731	Dust cover	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
2 731-DPDT-C-120VAC Low Signal Relays - PCB DPDT 10A 120VAC Electromechanical Relay DPDT 10A 120VAC 2.25KOhm Plug-In Power Relay • Coil Voltage: 120 VAC • Contact Configuration: DPDT (2 Form C) • Current : 10 A • Mounting: 0.187 Terminals • Operating Function: Single Side Stable Song Chuan	1240	1: ¥109.548	Low Signal Relays - PCB	RoHS Compliant	10 Amps	20 ms Max.	85% of rated voltage	120 VAC	50 Mohm Max. (for 731) / 100 Mohm Max. (for 731H)	1000Mohm Min. (DC 500V)	30% of rated voltage	2 VA	2250 ohm	Approx. 79.2g	2 Form C (DPDT-BM)	Plug-in - 8 Pin Blade	AgCdO alloy	2C DPDT	Standard	Single Side Stable	General Purpose Relay	100,000 operations (frequency 1,200 operations/hr) (for 731) / 50,000 operations (frequency 360 operations/hr) (for 731H)	10 to 50Hz, double amplitude 1.5 mm	20 ms Max.	10,000,000 operations (frequency 18,000 operations/hr)	10 to 50Hz, double amplitude 1.0 mm	100G	-40 to +70?C (no freezing) (for 731) / AC Coil: -45 to +55?C (no freezing) , DC Coil: -45 to +65?C (no freezing) (for 731H)	10 A 28 VDC, 10A 240 VAC	AC 1500V 50/60Hz 1 min. (for 731) / AC 2500V 50/60Hz 1 min. (for 731H)	10 A	10 A at 240 VAC	AC 500V 50/60Hz 1 min. (for 731) / AC 1000V 50/60Hz 1 min. (for 731H)	110% of rated voltage	731	Dust cover	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
2 731-DPDT-C-12VDC Low Signal Relays - PCB DPDT 10A 12VDC Electromechanical Relay DPDT 10A 12VDC 120Ohm Plug-In Power Relay • Coil Voltage: 12 VDC • Contact Configuration: DPDT (2 Form C) • Current : 10 A • Mounting: 0.187 Terminals • Operating Function: Single Side Stable Song Chuan	65	1: ¥90.236	Low Signal Relays - PCB	RoHS Compliant	10 Amps	20 ms Max.	75% of rated voltage	12 VDC	50 Mohm Max. (for 731) / 100 Mohm Max. (for 731H)	1000Mohm Min. (DC 500V)	10% of rated voltage	1.2 W	120 ohm	Approx. 79.2g	2 Form C (DPDT-BM)	Plug-in - 8 Pin Blade	AgCdO alloy	2C DPDT	Standard	Single Side Stable	General Purpose Relay	100,000 operations (frequency 1,200 operations/hr) (for 731) / 50,000 operations (frequency 360 operations/hr) (for 731H)	10 to 50Hz, double amplitude 1.5 mm	20 ms Max.	10,000,000 operations (frequency 18,000 operations/hr)	10 to 50Hz, double amplitude 1.0 mm	100G	-40 to +70?C (no freezing) (for 731) / AC Coil: -45 to +55?C (no freezing) , DC Coil: -45 to +65?C (no freezing) (for 731H)	10 A 28 VDC, 10A 240 VAC	AC 1500V 50/60Hz 1 min. (for 731) / AC 2500V 50/60Hz 1 min. (for 731H)	10 A	10 A at 28 VDC	AC 500V 50/60Hz 1 min. (for 731) / AC 1000V 50/60Hz 1 min. (for 731H)	140% of rated voltage	731	Dust cover	100 mA	100 mA	-	-	-	-	-	-	-	-	-	-	-	-	-
2 702U-2C-S-12VDC Low Signal Relays - PCB DPDT 2A 12VDC Signal Relay • Coil Voltage: 12 VDC • Contact Configuration: DPDT (2 Form C) • Current : 2 A • Mounting: PC Board Terminal • Operating Function: 1 Coil Latching Song Chuan	2600	1: ¥14.96	Low Signal Relays - PCB	No	2 Amps	single-side stable type 3ms Max. ; latching type 2ms Max.	75% of rated voltage	3 V to 24 V	100 Mohm Max.	1000Mohm Min. (DC 500V); Between set and reset coil: 100 Mohm (DC 125V)	75% of rated voltage	0.1 W to 0.15 W	1440 ohm	Approx. 1.5g	2 Form C (DPDT-BM)	PC Board	Ag + Au-clad	2C DPDT	Relays	1 Coil Latching	Signal Relay	200,000 operations (frequency 1,800 operations/hr)	10 to 50Hz, double amplitude 3 mm	single-side stable type 3ms Max. ; latching type 3ms Max.	100,000,000 operations (frequency 36,000 operations/hr)	10 to 50Hz, double amplitude 5 mm	500 m/s^2	-40 to +70?C (no freezing)	-	-	-	-	-	-	-	-	33.3 mA to 6.25 mA	1 A	Single Latching	operate: approx. 0.5ms ; release: approx. 0.5ms ; set/reset: approx. 0.5ms	125VAC, 110VDC	62.5VA, 33W	180% of rated voltage	Standard	latching type: 5 ms min.	PCB Terminals	0.5A at 125VAC, 1A at 30VDC	AC 1000V 50/60Hz 1 min.	AC 125V 50/60Hz 1 min. (double-winding latching)	AC 1000V 50/60Hz 1 min.	Plastics sealed
2 731-TPDT-C-240VAC Low Signal Relays - PCB 3PDT 10A 240VAC Electromechanical Relay 3PDT 10A 240VAC 7.2KOhm Plug-In Power Relay • Coil Voltage: 240 VAC • Contact Configuration: 3PDT (3 Form C) • Current : 10 A • Mounting: 0.187 Terminals • Operating Function: Single Side Stable Song Chuan	357	1: ¥142.46	Low Signal Relays - PCB	RoHS Compliant	10 Amps	20 ms Max.	85% of rated voltage	240 VAC	50 Mohm Max. (for 731) / 100 Mohm Max. (for 731H)	1000Mohm Min. (DC 500V)	30% of rated voltage	2 VA	7200 ohm	Approx. 79.2g	2 Form D (DPDT-MB)	Base Mount	AgCdO alloy	3C 3PDT	Standard	Single Side Stable	General Purpose Relay	100,000 operations (frequency 1,200 operations/hr) (for 731) / 50,000 operations (frequency 360 operations/hr) (for 731H)	10 to 50Hz, double amplitude 1.5 mm	20 ms Max.	10,000,000 operations (frequency 18,000 operations/hr)	10 to 50Hz, double amplitude 1.0 mm	100G	-40 to +70?C (no freezing) (for 731) / AC Coil: -45 to +55?C (no freezing) , DC Coil: -45 to +65?C (no freezing) (for 731H)	10 A 28 VDC, 10A 240 VAC	AC 1500V 50/60Hz 1 min. (for 731) / AC 2500V 50/60Hz 1 min. (for 731H)	10 A	10 A at 240 VAC	AC 500V 50/60Hz 1 min. (for 731) / AC 1000V 50/60Hz 1 min. (for 731H)	110% of rated voltage	731	Dust cover	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
2 731-TPDT-C-120VAC Low Signal Relays - PCB 3PDT 10A 120VAC Electromechanical Relay 3PDT 10A 120VAC 1.7KOhm Plug-In Power Relay • Coil Voltage: 120 VAC • Contact Configuration: 3PDT (3 Form C) • Current : 10 A • Mounting: 0.187 Terminals • Operating Function: Single Side Stable Song Chuan	201	1: ¥138.108	Low Signal Relays - PCB	RoHS Compliant	10 Amps	20 ms Max.	85% of rated voltage	120 VAC	50 Mohm Max. (for 731) / 100 Mohm Max. (for 731H)	1000Mohm Min. (DC 500V)	30% of rated voltage	2 VA	1700 ohm	Approx. 79.2g	2 Form D (DPDT-MB)	Base Mount	AgCdO alloy	3C 3PDT	Standard	Single Side Stable	General Purpose Relay	100,000 operations (frequency 1,200 operations/hr) (for 731) / 50,000 operations (frequency 360 operations/hr) (for 731H)	10 to 50Hz, double amplitude 1.5 mm	20 ms Max.	10,000,000 operations (frequency 18,000 operations/hr)	10 to 50Hz, double amplitude 1.0 mm	100G	-40 to +70?C (no freezing) (for 731) / AC Coil: -45 to +55?C (no freezing) , DC Coil: -45 to +65?C (no freezing) (for 731H)	10 A 28 VDC, 10A 240 VAC	AC 1500V 50/60Hz 1 min. (for 731) / AC 2500V 50/60Hz 1 min. (for 731H)	10 A	10 A at 240 VAC	AC 500V 50/60Hz 1 min. (for 731) / AC 1000V 50/60Hz 1 min. (for 731H)	110% of rated voltage	731	Dust cover	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-

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Song Chuan Group- General Purpose Signal Relays

General Purpose Signal Relays - 型号列表

DC Resistance (DCR) (Max)

Voltage - Supply

Coil Current

Current Rating (Max)

Voltage Dropout (Max)

Power - Average Forward

Mounting Type

RoHS

Current

Release Time

Pick Up Voltage

Contact Resistance

Insulation Resistance

Contact Rating @ Voltage

Voltage - Continuous Operating (Max) (MCOV)

Weight

Contact Form

Contact Material

Contact Layout, Typical

Type

Function

Card Standard

Electrical Life

Vibration

Operate Time

Mechanical Life

Operating Range

Shock Resistance

Operating Temperature