KEYONG KQC(4078) is a compact Surface Mount DPDP Signal Relay designed for precision switching in telecommunications, medical monitoring, office automation, security systems, and sensor control applications. Featuring bifurcated contacts for stable signal transmission, it offers a 125VA/60W switching capacity and 2A 30VDC contact rating for reliable circuit performance. Built to FCC Part 68 standards, it provides 1500V surge resistance and 1000VAC dielectric strength for enhanced insulation and safety. Its ultra-compact SMT design supports automated pick-and-place assembly and reflow soldering, while the epoxy-sealed structure ensures protection during wave soldering and cleaning, making it an efficient and dependable choice for modern electronic manufacturing.
• Bifurcated contacts for stable and accurate signal switching
• 125VA/60W switching capacity
• 2A 30VDC contact rating
• 1500V surge resistance
• 1000VAC dielectric strength
• Compact SMT design for automated production
• Epoxy sealed for enhanced process protection
• Low power consumption with fast switching response
• Monostable operation and long service life
• Available in tape-and-reel or tube packaging
The KEYONG Surface Mount DPDP Signal Relay is developed to meet modern circuit design requirements where PCB space optimization and switching accuracy are critical.
Key advantages include:
●Compact surface mount structure for automated PCB assembly
●DPDP contact configuration for flexible circuit control
●High switching sensitivity for low-power signal transmission
●Excellent dielectric strength for enhanced circuit safety
●Stable performance under continuous operation
●Long mechanical and electrical service life
●Suitable for reflow soldering processes
As an experienced China relay supplier, KEYONG ensures every Surface Mount DPDP Signal Relay delivers consistent performance across mass production applications.
| Contact arrangment | 2C |
| Contact resistance | ≤50mΩ(1A 6VDC) |
| Contact material | Silver alloy:AgSnO₂In₂O₃、AgSnO₂、AgNi |
| Contact rating(Res.load) | 1A 120VAC,2A 30VDC |
| Max switching voltage | 220VAC/30VDC |
| Max switching current | 2A |
| Max switching power | 125VA/60W |
| Electrical endurance Frequency:360 ops/h) | 1×10⁵ops/1×10⁴ops |
| Mechanical endurance(Frequency:18000 ops/h) | 1×10⁷ops |
| Power consumption(W) | 0.36W(L) | 0.2W(H) | ||||||||||||
| Nominal voltage(VDC) | 03 | 05 | 06 | 09 | 12 | 18 | 24 | 03 | 05 | 06 | 09 | 12 | 18 | 24 |
| Coil resistance(Ω±10%) | 25 | 69.4 | 100 | 225 | 400 | 900 | 1600 | 45 | 125 | 180 | 405 | 720 | 1620 | 2880 |
| Pick-up voltage(Max) | 75%(Nominal voltage) | |||||||||||||
| Drop-out voltage(Min) | 5%(Nominal voltage) | |||||||||||||
| Max allowable overdrive voltage(VDC) | 130%(Nominal voltage) | |||||||||||||
| Insulation level | B/F | |
| Insulation resistance | 100MΩ(500VDC) | |
| Dielectric strength(Leakage current 1mA) | Between coil and contacts | 1000VAC 1min |
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Between open contacts | 500VAC 1min |
| Operate time(at nominal voltage) | ≤6ms | |
| Release time(without diode)(at nominal voltage) | ≤5ms | |
| Humidity | 5%～85%RH | |
| Ambient temperature | -40℃~+85℃ | |
| Shock resistance | Functional | 196m/s² |
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Destructive | 980m/s² |
| Vibration resistance(Double amplitude) | 10Hz~55Hz 1.5mm | |
| Weight | Approx 6g | |
| Construction | Sealed Flux proofed | |
The KEYONG Surface Mount DPDP Signal Relay is widely used in precision electronic systems requiring stable low-current signal switching.
Typical applications include:
●Communication modules
●Security and surveillance systems
●Industrial automation control boards
●Smart home controllers
●Testing instruments
●Medical electronic equipment
●Renewable energy monitoring systems
●Automotive electronic auxiliary systems
As a professional signal relay manufacturer in China, KEYONG supplies Surface Mount DPDP Signal Relay solutions for diverse industries worldwide.
1. Is this Surface Mount DPDP Signal Relay suitable for automated SMT production?
Yes. The relay is specifically designed for surface mount applications and is compatible with automated pick-and-place assembly lines, helping customers improve manufacturing efficiency while maintaining assembly precision.
2. How does KEYONG ensure stable relay performance?
As an established China relay factory, KEYONG uses fully automated production lines equipped with precision winding, assembly, inspection, and testing equipment. Every Surface Mount DPDP Signal Relay passes strict electrical parameter verification, contact resistance testing, and durability inspection.
3. Can KEYONG support OEM or customized requirements?
Yes. KEYONG is an experienced OEM relay manufacturer and supplier. We support custom coil voltages, terminal configurations, packaging requirements, and application-specific technical adjustments according to project needs.
4. What certifications does this signal relay have?
KEYONG products are certified by internationally recognized organizations including UL, TUV, CQC, CE, and RoHS, ensuring compliance with global quality and safety requirements.
5. What is the production capacity for bulk orders?
The KEYONG relay factory covers 12,000 square meters and has annual production capacity exceeding 80 million relay units, ensuring stable lead times for both standard and customized Surface Mount DPDP Signal Relay orders.
Ningbo Keyong Jingsheng Electrical Appliance Co., Ltd. is a professional relay manufacturer integrating R&D, production, sales, and technical service. Since 2012, KEYONG has built long-term cooperation with customers across automotive electronics, renewable energy charging and storage, communication equipment, industrial automation, and smart electronics.
Choosing KEYONG means working directly with a reliable China manufacturer and signal relay supplier with strong production capability, strict quality control, and responsive service support.
For buyers searching for a dependable Surface Mount DPDP Signal Relay manufacturer, KEYONG offers competitive factory pricing, stable quality, and professional project support for global OEM and wholesale cooperation.
Address
350 Renmin North Road, Hengxi Town, Yinzhou District, Ningbo City, Zhejiang Province, China
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