Latching Relay - Ds903c

We hope to cooperate with veteran companies to bring our Welding Machine Relay, 80 ampere car relay, auto relay switch to the market faster, and to establish a high prestige. Creating good products is our constant pursuit, and we are responsible for every customer. We will spare no effort to serve more customers and meet their needs with advanced technology and diversified products. Over the years, the company has continuously improved and developed new products and paid attention to user needs to help customers with their stability, reliability and efficiency. The company always insists on scientific development, takes turning the mode and adjusting the structure as the development goal, constantly adjusts and improves the product structure, seeks new development projects, and the scale of the enterprise grows continuously. We stick with the theory of 'quality first, company first, steady improvement and innovation to satisfy the customers' for the management and 'zero defect, zero complaints' as the quality objective.

1 Product Overview of 12 ampere dc power relay

Product feature:

◆ High contact Load capacity: Max 12A

◆ High susceptivity: 200mW

◆ Suitable for PCB

◆ In accordance with RoHS Directive

◆ Oblate type

◆ Flux-tight&Sealed type valid

◆ Dimensions: 23.0*16.2*10.6 mm

◆ It Can replace Tyco's similar relay with model No. PCD

Definition way: see following introduction pls.

 

NB903  E  -12  S  -S  -A  L  T-105℃  Φ3.1  X

 1      2   3   4  5   6   7    8        9   10

1:  Relay Model  2： NO max load 30A, none: 40A  3: Coil rated voltage  4: package S: Sealed, D: dust proof.

5:  Contact Material: S:AgSnO2  C:AgCdO  6:  Contact Form:   A:Normally Open  B:Normally Close  C:SPDT(NO&NC)

 

7: L: Height of shell 20.5mm None:Height of shell 28.5mm    8: T-105℃: ambient temperature 105℃   none: normal ambient temperature

9: Φ3.1: Quick terminal hole dia. 3.1mm None: Quick terminal hole dia. 1.6mm   10:  X: customer used code

Overview

Our Dc Power Relay is widely used in various scenarios, such as air conditioner, water heater, rice cooker, computer, fax machine, etc. Its shell is made of high-quality materials with good thickness and smoothness. The contact is made of composite silver material, which makes the suction more accurate and has a longer service life. It has all copper enamelled wire, exceeding the national standard full turns, all copper enamelled coil, more stable current transmission and safer use.

Our company is the source relay manufacturer with strong strength and quality assurance. The produced relays have served thousands of partners in China, and have been successfully sold to foreign markets and won wide praise. Our Dc Power Relay plays the role of automatic regulation, safety protection and conversion circuit in the circuit.

2 Information table of 12 ampere dc power relay

Contact Rating
Contact Form	1A
Contact Material	AgCdO AgSnO2
Contact Load Capacity	12A 250VAC/30VDC
Switching Power Max.		360W 3000VA
Switching Voltage Max.		30VDC/277VAC
Switching Current Max.		12A
Contact Resistance Max.		100mΩ(1A 24VDC)
Life expectancy		Electrical	10 5
		Machanical	10 7

Coil Rating
1A 200mW							1A 360mW
No.	Coil Voltage		Coil Resistance Ω±10%	Pick up (VDC) Max. (80% of Rated Voltage)	Drop out (VDC) Min.(10% of Rated Voltage)		No.	Coil Voltage		Coil Resistance Ω±10%	Pick up (VDC) Max. (80% of Rated Voltage)	Drop out (VDC) Min.(10% of Rated Voltage)
	Rated	Max.						Rated	Max.
5	5	6.5	125	4	0.5		5	5	6.5	62.5	4	0.5
6	6	7.8	180	4.8	0.6		6	6	7.8	90	4.8	0.6
9	9	11.7	405	7.2	0.9		9	9	11.7	202.5	7.2	0.9
12	12	15.6	720	9.6	1.2		12	12	15.6	360	9.6	1.2
18	18	23.4	1620	14.4	1.8		18	18	23.4	810	14.4	1.8
24	24	31.2	2880	19.2	2.4		24	24	31.2	1440	19.2	2.4
48	48	52.8	11520	38.4	4.8		48	48	52.8	5760	38.4	4.8

Technical Rating
Insulation Resistance		Min.1000MΩ(500VDC)	IEC 60255-5
Dielectric Strength	Between Coil&Contact	1000VAC 1min	IEC 60255-5
	Between Contacts	2500VAC 1min	IEC 60255-5
Operate Time		≤10ms
Release Time		≤5ms
Shock Resistance		Operation extremes 10G Damage limits 100G	IEC 68-2-27 test Ea
Vibration Resistance		10Hz～55Hz amplitude 1.5mm	IEC 68-2-6 test Fc
Leading-out Form		PCB type	IEC 68-2-21 test Ua1
Ambient Temperature		﹣40℃～85℃;﹣40℃～105℃
Relative Humidity		85% RH	IEC 68-2-3 test Ca
Weight		Approx.8.0g
Package		Sealed,Solder-proof type

Safety Certification
Approval	CQC	TUV
Load	12A 250VAC 30VDC	12A 250VAC 30VDC

3 Dimension and circuit of 12 ampere dc power relay

Outline Dimensions

Bottom View Layout

Wiring Diagram(Bottom View)

4.FAQ

Q: What is your term of payment?

A: 100% down payment before producing.

Q: Can you give me a discount?

A: Discount is available,but we have to see the real quantity,we have different price based on different quantity,how much discounts is determined by the quantity,moreover,our price is very competitive in the field

We insist on quality and inspect 100% of every finished product detail to ensure the performance of our Latching Relay - Ds903c. We pursue interested work, like-minded colleagues, healthy physique, open mind and optimism. Internally, we pay attention to teamwork; externally, we take the initiative to seek cooperative customers, enhance competitiveness and achieve a win-win situation.

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