HF35F-012-1HSTF

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Power relay with 20A contact rating and sealed construction

Product Overview

Description

The HF35F-012-1HSTF is a power relay with 20A switching capacity and sealed construction for harsh environments.

The flux-tight housing prevents contamination during PCB cleaning processes.

Suitable for appliance control, industrial equipment, and outdoor applications.

Product Series

HF

Primary Application

Air conditioners

Key Features

  • 20A high switching capacity
  • Flux-tight sealed construction
  • High temperature rating
  • Washable sealed type
  • RoHS compliant

Specifications

Contact Rating 20A 250VAC
Coil Voltage 12VDC
Contact Configuration 1 Form A (SPST-NO)
Coil Power 530mW
Operate Time 15ms max
Release Time 10ms max
Contact Resistance 50mΩ max
Insulation Resistance 1000MΩ min
Dielectric Strength 4000VAC
Mechanical Life 10,000,000 operations
Electrical Life 100,000 operations
Temperature Range -40°C to +105°C
Dimensions 24.5 x 19.0 x 16.5mm

Applications

Air conditioners

Electronic system design

Water heaters

Electronic system design

Industrial controllers

Industrial automation and control

Outdoor equipment

Electronic system design

Documents & Resources

FAE Expert Insights

J

"The HF35F with sealed construction is perfect for applications requiring washability or harsh environment operation. The 20A rating handles heavy loads like compressor motors. The flux-tight seal prevents cleaning solvent ingress during PCB assembly. I've used these in outdoor equipment and appliance applications with excellent reliability. The higher temperature rating is a plus for hot environments. Overall, an excellent sealed power relay."

Sealed 20A relay for harsh environment applications

— James Wang, BeiLuo

Frequently Asked Questions

What is the contact rating and coil voltage of HF35F-012-1HSTF?

The HF35F-012-1HSTF is a power relay designed for general switching applications. It features robust contact construction capable of handling the specified current and voltage ratings. The coil voltage options allow flexible integration into various control circuits. The relay provides reliable switching performance with excellent electrical life. For detailed specifications including contact material, coil resistance, operate/release times, and insulation resistance, please refer to the datasheet. These parameters make the HF35F-012-1HSTF suitable for home appliances, industrial equipment, and power distribution applications.

Select HF35F-012-1HSTF based on your load current/voltage requirements and available coil voltage; ensure contact rating provides adequate margin for your application.

contact rating coil voltage power relay switching capacity specifications
How do I select and apply HF35F-012-1HSTF in my circuit design?

When using HF35F-012-1HSTF in your circuit design, consider several important factors for optimal performance. First, ensure the contact rating provides adequate margin for your load - typically 20% derating is recommended for resistive loads, with higher margins for inductive or capacitive loads. The coil voltage must match your control circuit voltage with consideration for voltage fluctuations. For PCB mounting, follow the recommended footprint and keep high current traces short and wide. Temperature derating may be necessary for applications operating above 40°C ambient. For inductive loads, consider using arc suppression components to extend relay life. Proper coil driving with appropriate current ensures reliable operation.

Apply 20% contact derating; match coil voltage to control circuit; use arc suppression for inductive loads; follow recommended PCB footprint.

selection usage design guide derating PCB layout
How does HF35F-012-1HSTF compare to relays from Omron, Panasonic, and TE?

The HF35F-012-1HSTF offers competitive performance compared to major relay manufacturers like Omron, Panasonic, and TE Connectivity. In terms of electrical characteristics, Hongfa relays provide comparable contact ratings, coil specifications, and mechanical life to these established brands. The contact materials and construction ensure reliable switching performance. Hongfa's manufacturing quality meets international standards with competitive field failure rates. Pricing is typically more attractive than Japanese and American competitors, offering cost savings for high-volume applications. Lead times are generally shorter with good inventory availability. Hongfa also offers equivalent safety certifications including UL, VDE, and TÜV. For most general-purpose applications, Hongfa relays provide equivalent performance at better value.

Choose Hongfa for cost-effective, reliable relays; consider premium brands only for the most demanding specialized applications.

comparison Omron Panasonic TE Connectivity competitor alternative
What are the typical applications for HF35F-012-1HSTF?

The HF35F-012-1HSTF is suitable for a wide range of power switching applications. In home appliances, it controls compressors, heaters, and motors in air conditioners, refrigerators, and washing machines. Industrial equipment uses these relays for motor control, heating elements, and power distribution. Building automation systems employ them for lighting control and HVAC systems. The relay's robust construction handles various load types including resistive, inductive, and motor loads. Power distribution panels use these relays for circuit switching and protection.

Select HF35F-012-1HSTF for general power switching in appliances, industrial equipment, and building automation systems.

applications home appliances industrial equipment power switching HVAC
What is the lead time, MOQ, and pricing for HF35F-012-1HSTF?

The HF35F-012-1HSTF has a standard lead time of 4-8 weeks for production quantities, depending on current demand and factory capacity. BeiLuo Electronics maintains strategic inventory for popular relay models, enabling faster delivery for sample and small quantity orders. The minimum order quantity (MOQ) is typically 500 pieces for standard relays, with volume pricing tiers available at 1K, 5K, and 10K+ quantities. Sample quantities (10-50 pieces) are available for prototype development with shorter lead times of 1-2 weeks. Pricing varies based on order volume, with competitive rates for high-volume production. For custom specifications or special requirements, contact our sales team for quotation and lead time estimates. Long-term supply agreements are available for high-volume customers, ensuring stable pricing and guaranteed capacity.

Plan procurement with 4-8 week lead time; contact sales for volume pricing and long-term supply agreements; samples available for prototyping.

lead time MOQ pricing delivery samples volume
What quality certifications does HF35F-012-1HSTF have?

The HF35F-012-1HSTF is manufactured under Hongfa's comprehensive quality management system certified to ISO 9001 and IATF 16949 for automotive applications. The relay meets UL/C-UL safety standards for North American markets, VDE for German and European markets, TÜV for European safety standards, and CQC for Chinese domestic market. The manufacturing process includes 100% electrical testing for coil characteristics, contact resistance, and dielectric strength. Reliability testing includes life testing, environmental testing, and mechanical endurance testing. Hongfa maintains full lot traceability for quality management and recall prevention.

Specify required certifications for your region; contact sales for certification documentation and automotive qualification data.

quality certification UL VDE TÜV CQC