HC2E-H-DC48V Equivalent & Substitute Parts

Part Overview

The HC2E-H-DC48V is a general purpose relay manufactured by Panasonic Electric Works, featuring a DPDT (2 Form C) contact configuration with a 48VDC coil. This socketable relay is rated for 3A switching capacity at 250VAC maximum and operates with a coil current of 18.5 mA. The product is currently obsolete, making equivalent and substitute parts necessary for system maintenance, repair, and new design implementations where this relay specification remains applicable.

Substiute Parts

HC2E-H-DC48V

Panasonic Electric WorksIn Stock: 1120HC2E-H-DC48V Datasheet

Current PartRFQ

MY2 DC48 (S)

Omron Automation and SafetyIn Stock: 1063MY2 DC48 (S) Datasheet

SimilarRFQ

PT270048

TE Connectivity Potter & Brumfield RelaysIn Stock: 2247PT270048 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the HC2E-H-DC48V is determined by the following mandatory parameters:

• Coil Voltage: 48VDC (exact match required)
• Contact Form: DPDT (2 Form C) configuration (exact match required)
• Mounting Type: Socketable (exact match required)
• Termination Style: Plug In (exact match required)
• Coil Type: Non Latching (exact match required)
• Must Operate Voltage: 38.4 VDC or lower (ensures reliable operation)
• Must Release Voltage: 4.8 VDC or lower (ensures reliable release)

Substitute parts may exceed the original contact rating (3A) and switching voltage (250VAC) specifications, as higher ratings provide equivalent or superior performance in the same circuit application. Operating temperature range and coil current variations are acceptable within industry standards for general purpose relay applications.

Parameter Comparison

Engineering Selection Recommendations

Both MY2 DC48 (S) and PT270048 are active product alternatives to the obsolete HC2E-H-DC48V. Selection between these substitutes depends on application requirements and compliance needs.

MY2 DC48 (S) (Omron Automation and Safety): This substitute maintains electrical characteristics closely aligned with the original HC2E-H-DC48V, with identical must-operate and must-release voltages. The 5A contact rating provides increased capacity over the original 3A specification. RoHS compliance and unlimited MSL rating support modern manufacturing and supply chain requirements. Operating temperature range extends to -55°C ~ 70°C, providing broader environmental coverage.

PT270048 (TE Connectivity Potter & Brumfield Relays): This substitute offers the highest contact rating at 12A and maximum switching voltage at 400VAC, providing superior performance margins for demanding applications. The must-operate voltage of 36 VDC is lower than the original specification, ensuring reliable operation across a wider input voltage range. ROHS3 compliance and mechanical indicator with test button features support advanced system diagnostics. Operating temperature range extends to -40°C ~ 70°C.

Both substitutes meet the mandatory substitution criteria: 48VDC coil voltage, DPDT contact form, socketable mounting, and plug-in termination. Selection should be based on specific application current requirements, switching voltage demands, and compliance certifications required by the end system.

Frequently Asked Questions (FAQ)

Q: Can MY2 DC48 (S) directly replace HC2E-H-DC48V in existing sockets?

A: Yes. Both relays feature socketable mounting with plug-in termination, enabling direct socket compatibility. Electrical characteristics including coil voltage (48VDC), contact form (DPDT), must-operate voltage (38.4 VDC), and must-release voltage (4.8 VDC) are identical or equivalent, ensuring functional compatibility in the same circuit application.

Q: What is the primary advantage of PT270048 over the original HC2E-H-DC48V?

A: PT270048 provides a 12A contact rating compared to the original 3A specification, along with 400VAC maximum switching voltage versus 250VAC. These higher ratings deliver increased performance margins and broader application flexibility. The lower must-operate voltage (36 VDC) ensures reliable operation across a wider input voltage range.

Q: Are there temperature range limitations when substituting with MY2 DC48 (S)?

A: MY2 DC48 (S) extends the operating temperature range to -55°C ~ 70°C, compared to the original -40°C ~ 60°C. This provides enhanced performance in cold environments. Applications operating within the original temperature range experience no limitations.

Q: Do substitute parts require different socket types?

A: No. Both MY2 DC48 (S) and PT270048 maintain socketable mounting with plug-in termination compatible with HC2E-H-DC48V sockets. PT270048 additionally supports quick-connect 0.110" (2.8mm) termination as an alternative option.

Q: Which substitute is recommended for RoHS-compliant applications?

A: Both MY2 DC48 (S) (RoHS Compliant) and PT270048 (ROHS3 Compliant) meet RoHS requirements. PT270048 meets the more recent ROHS3 standard, providing compliance with the latest regulatory requirements.

Q: How do coil current differences affect circuit design?

A: Coil current variations are minimal: HC2E-H-DC48V (18.5 mA), MY2 DC48 (S) (18.8 mA), and PT270048 (15.6 mA). These differences are within standard tolerance ranges and do not require circuit redesign. Existing power supply and control circuits remain compatible with all three relays.

Q: Can PT270048 be used in applications requiring faster switching response?

A: PT270048 operates with 15 ms operate time and 10 ms release time, compared to HC2E-H-DC48V at 10 ms and 5 ms respectively. For applications requiring the original switching speed, MY2 DC48 (S) with 20 ms operate and release times may be acceptable depending on system timing requirements. Verify specific application timing constraints before selection.