The KQF (32F) Miniature PCB Relay 5A/250VAC from NINGBO KEYONG JINGSHENG ELECTRICAL APPLIANCE CO., LTD. is a compact and reliable relay solution designed for industrial control systems, HVAC equipment, smart home devices, security systems, power supplies, and household appliances. With stable switching performance and reinforced insulation design, it is suitable for high-density PCB applications requiring long-term reliability and electrical safety.
●Supports 5A, 10A, 16A, and 20A switching capability
●SPST-NO (1 Form A) contact configuration
●4kV dielectric strength between coil and contacts for enhanced insulation safety
●Low coil power consumption options: 200mW and 450mW
●Compact subminiature structure for space-saving PCB layout
●Standard PCB terminal design for easy installation and replacement
●Plastic sealed and flux proofed types available
●RoHS compliant for global environmental standards
●Helps reduce heat generation and energy consumption
●Suitable for compact electronic control boards
●Stable switching performance under continuous working conditions
●Easy integration into automation and appliance systems
●Reliable operation for long service life
| Contact arrangment | A |
| Contact resistance | ≤50mQ |
| Contact material | Silver alloy:AgSnO₂In₂O₃、AgSnO₂、AgNi |
| Contact rating(Res.load) | 5A/10A 250VAC,10A 125VAC/30VDC,16A 250VAC |
| Max switching voltage | 250VAC/30VDC |
| Max switching current | 20A |
| Max switching power | 2500VA/300W |
| Electrical endurance (Frequency:360 ops/h) | 1×10⁵ops/1×10⁴ops |
| Mechanical endurance (Frequency:18000 ops/h) | 1×10⁷ops |
| Power consumption(W) | 0.45W(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%) | 20 | 55.5 | 80 | 180 | 320 | 720 | 1280 | 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 | 1000MΩ(500VDC) | |
| Dielectrc strength(Leakage current 1mA) | Between coil and contacts | 4000VAC 1min |
| Between open contacts | 1000VAC 1min | |
| Operate time(at nominal voltage) | ≤8ms | |
| Release time(without diode)(at nominal voltage) | ≤5ms | |
| Humidity | 5%～85%RH | |
| Ambient temperature | -40℃~+85℃/+105℃ | |
| Shock resistance | Functional | 294m/s² |
| Destructive | 980m/s² | |
| Vibration resistance(Double amplitude) | 10Hz~55Hz 1.5mm | |
| Weight | Approx4.6g | |
| Construction | Sealed Flux proofed | |
The KQF (32F) Miniature PCB Relay 5A/250VAC is designed for reliable switching control in compact electronic systems and high-density PCB applications. With stable electrical performance, low power consumption, and reinforced insulation design, it is widely used across various industries and intelligent control equipment.
It is widely used in smart home systems, HVAC controllers, household appliances, industrial automation equipment, security systems, communication devices, and power supply control boards. Its compact size and stable switching performance make it suitable for space-limited PCB applications.
1.Does the relay support high-density PCB mounting?
Yes. The compact subminiature structure is designed for high-density PCB layouts and helps save installation space inside electronic equipment while maintaining reliable electrical performance.
2.What is the advantage of 4kV dielectric strength?
The 4kV dielectric strength between coil and contacts improves insulation performance and electrical safety. It helps reduce the risk of electrical interference, short circuits, and insulation breakdown in demanding operating environments.
3.Is this relay suitable for long-term continuous operation?
Yes. The relay is designed with stable contact materials and reliable internal structure to maintain consistent switching performance during long-term operation and frequent switching conditions.
4.Are sealed versions available?
Yes. Both plastic sealed and flux proofed types are available to support different PCB assembly and manufacturing processes.
5.Is the relay compliant with international standards?
Yes. The product is RoHS compliant and manufactured under strict quality management procedures to meet international environmental and safety requirements.
6.What should customers consider before selecting a PCB relay?
Customers should confirm:
●Rated load current
●Coil voltage
●PCB installation space
●Switching frequency
●Operating environment
●Insulation requirements
Choosing the correct relay specification helps improve equipment reliability and service life.
Address
350 Renmin North Road, Hengxi Town, Yinzhou District, Ningbo City, Zhejiang Province, China
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