HC2E-H-DC12V Equivalent & Substitute Parts

Part Overview

The HC2E-H-DC12V is a general purpose relay manufactured by Panasonic Electric Works, featuring a DPDT (2 Form C) contact configuration with a 12VDC coil and 3A contact rating. This socketable relay is designed for standard switching applications requiring sealed, fully enclosed construction. The product is currently obsolete, making identification of compatible substitute parts essential for system maintenance, repair, and redesign applications.

Substiute Parts

HC2E-H-DC12V

Panasonic Electric WorksIn Stock: 736HC2E-H-DC12V Datasheet

Current PartRFQ

KHAU-11D11-12

TE Connectivity Potter & Brumfield RelaysIn Stock: 824KHAU-11D11-12 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the HC2E-H-DC12V is determined by strict equivalence across the following critical parameters:

• Coil Voltage: 12VDC (exact match required)
• Contact Form: DPDT (2 Form C) (exact match required)
• Contact Rating: 3 A minimum (equal or higher acceptable)
• Mounting Type: Socketable (exact match required)
• Termination Style: Plug In (exact match required)
• Coil Resistance: 160 Ohms (exact match required)

The KHAU-11D11-12 from TE Connectivity Potter & Brumfield Relays meets all critical substitution criteria. Both relays share identical coil voltage, contact configuration, current rating, socketable mounting, plug-in termination, and coil resistance. Operational timing and temperature range variations fall within acceptable engineering tolerances for general purpose relay applications.

Parameter Comparison

Engineering Selection Recommendations

The KHAU-11D11-12 is a direct functional equivalent to the HC2E-H-DC12V for applications requiring a 12VDC DPDT socketable relay with 3A contact rating. The substitute part is currently in active production status, ensuring long-term availability and supply chain continuity.

The KHAU-11D11-12 demonstrates superior operational temperature range (-45°C ~ 70°C versus -40°C ~ 60°C), providing extended performance capability in thermal extremes. The switching voltage specification of 240VAC is marginally lower than the original 250VAC maximum, which remains suitable for standard industrial and commercial switching applications operating at or below 240VAC.

Timing differences (operate time 13 ms versus 10 ms, release time 6 ms versus 5 ms) are within acceptable tolerances for general purpose relay applications and do not impact functional compatibility in standard switching circuits.

The KHAU-11D11-12 carries RoHS3 compliance certification, meeting current environmental and regulatory requirements for component procurement.

Frequently Asked Questions (FAQ)

Q: Can the KHAU-11D11-12 be used as a direct replacement for the HC2E-H-DC12V in existing sockets?

A: Yes. Both relays feature identical socketable mounting and plug-in termination styles, enabling direct physical and electrical substitution without circuit modification or socket redesign.

Q: What is the significance of the 10VAC switching voltage difference between the two relays?

A: The KHAU-11D11-12 specifies 240VAC maximum switching voltage compared to the HC2E-H-DC12V at 250VAC maximum. This 10VAC difference does not impact compatibility for applications operating at standard industrial voltages (120VAC, 240VAC, or lower). Applications requiring operation above 240VAC should retain the original HC2E-H-DC12V specification.

Q: Are the timing differences between operate and release times critical for substitution?

A: The KHAU-11D11-12 exhibits slightly longer switching times (13 ms operate, 6 ms release) compared to the HC2E-H-DC12V (10 ms operate, 5 ms release). These differences are negligible for general purpose switching applications. Applications with strict timing requirements below 13 ms operate time should evaluate circuit-specific performance requirements.

Q: Does the KHAU-11D11-12 meet current regulatory compliance standards?

A: Yes. The KHAU-11D11-12 is RoHS3 compliant and carries EAR99 ECCN classification, meeting current environmental and export control requirements. The HC2E-H-DC12V, as an obsolete product, may not meet current procurement compliance standards.

Q: What is the coil current requirement for both relays?

A: Both the HC2E-H-DC12V and KHAU-11D11-12 require 75 mA coil current at 12VDC, with identical 160 Ohm coil resistance. Driver circuits designed for the original relay require no modification for the substitute part.