HC4D-HP-DC48V Equivalent & Substitute Parts

Part Overview

The HC4D-HP-DC48V is a general purpose relay manufactured by Panasonic Electric Works, featuring a 4PDT (4 Form C) contact configuration with a 48VDC coil and 3A contact rating. This through-hole mounted relay is designed for applications requiring multiple independent switching circuits with moderate current handling capability.

The HC4D-HP-DC48V is classified as obsolete. Identifying suitable substitute parts is necessary to maintain design continuity, ensure component availability for production, and support long-term system maintenance where original stock becomes depleted.

Substiute Parts

HC4D-HP-DC48V

Panasonic Electric WorksIn Stock: 1025HC4D-HP-DC48V Datasheet

Current PartRFQ

MY4Z-02-DC48

Omron Automation and SafetyIn Stock: 911MY4Z-02-DC48 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the HC4D-HP-DC48V is determined by strict equivalence across the following critical parameters:

• Coil voltage: 48VDC (exact match required)
• Contact configuration: 4PDT (4 Form C) (exact match required)
• Contact current rating: 3 A (exact match required)
• Coil current: 18.5 mA (exact match required)
• Mounting type: Through hole (exact match required)
• Termination style: PC pin (exact match required)
• Coil resistance: 2.6 kOhms (exact match required)
• Must operate voltage: 38.4 VDC (exact match required)
• Must release voltage: 4.8 VDC (exact match required)
• Operate and release times: 20 ms each (exact match required)

The MY4Z-02-DC48 manufactured by Omron Automation and Safety meets all critical substitution criteria and is classified as an active product with current manufacturing support.

Parameter Comparison

Engineering Selection Recommendations

The MY4Z-02-DC48 is the direct substitute for the HC4D-HP-DC48V. The Omron part maintains electrical and mechanical equivalence across all critical parameters while offering the advantage of active product status with ongoing manufacturing support and availability.

The MY4Z-02-DC48 provides enhanced switching voltage capability (250VAC and 125VDC versus 250VAC only) and an extended lower operating temperature limit (-55°C versus -50°C), representing functional improvements over the original part. RoHS compliance certification on the Omron part supports regulatory requirements for new designs and production runs.

Contact material differs between the two parts (Silver Nickel versus Silver), reflecting manufacturing evolution. This difference does not affect functional substitution for the specified electrical parameters and switching conditions.

Frequently Asked Questions (FAQ)

Q: Can the MY4Z-02-DC48 be used as a direct replacement for the HC4D-HP-DC48V in existing designs?

A: Yes. The MY4Z-02-DC48 meets all critical electrical and mechanical parameters required for direct substitution, including coil voltage, contact configuration, current rating, timing characteristics, and through-hole PC pin termination.

Q: What are the key differences between these two relays?

A: The primary differences are product status (obsolete versus active), contact material composition (Silver Nickel versus Silver), switching voltage capability (250VAC only versus 250VAC and 125VDC), operating temperature range (-50°C to 70°C versus -55°C to 70°C), and RoHS compliance certification. Electrical and mechanical performance remain equivalent.

Q: Are there packaging considerations when switching from HC4D-HP-DC48V to MY4Z-02-DC48?

A: Both parts use through-hole PC pin termination and are designed for PCB mounting. Pinout compatibility must be verified against the specific application schematic. Physical dimensions should be confirmed to ensure mechanical fit within the enclosure or assembly.

Q: Does the contact material change affect relay performance?

A: Contact material composition does not affect performance for the specified electrical parameters and switching conditions. Both Silver Nickel and Silver contacts are suitable for general purpose relay applications at the 3A, 250VAC switching rating.

Q: Is the MY4Z-02-DC48 suitable for new product designs?

A: Yes. The MY4Z-02-DC48 is classified as an active product with current manufacturing support, RoHS compliance, and full technical documentation availability, making it appropriate for new designs requiring a 48VDC, 4PDT, 3A general purpose relay.