HC4E-HP-DC24V Equivalent & Substitute Parts

Part Overview

The HC4E-HP-DC24V is a general purpose 4PDT relay manufactured by Panasonic Electric Works with a 24VDC coil, rated for 2A contact current, and through-hole PC pin termination. This component is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. The relay operates across a temperature range of -40°C to 60°C and features silver nickel and gold contact materials suitable for general switching applications up to 250VAC.

Key Parameters

Parameter	Value
Manufacturer Part Number	HC4E-HP-DC24V
Manufacturer	Panasonic Electric Works
Coil Voltage	24VDC
Contact Form	4PDT (4 Form C)
Contact Rating (Current)	2 A
Switching Voltage	250VAC - Max
Coil Current	37 mA
Coil Type	Non Latching
Mounting Type	Through Hole
Termination Style	PC Pin
Must Operate Voltage	19.2 VDC
Must Release Voltage	2.4 VDC
Operate Time	20 ms
Release Time	20 ms
Operating Temperature	-40°C ~ 60°C
Coil Resistance	650 Ohms
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution eligibility for the HC4E-HP-DC24V is determined by strict alignment of the following critical parameters:

Coil voltage: 24VDC (exact match required)
Contact form: 4PDT (4 Form C) configuration (exact match required)
Coil type: Non-latching operation (exact match required)
Mounting type: Through-hole with PC pin termination (exact match required)
Coil resistance: 650 Ohms (exact match required)
Must operate and release voltages: 19.2 VDC and 2.4 VDC respectively (exact match required)
Operate and release times: 20 ms each (exact match required)

Contact current rating, switching voltage maximum, and operating temperature range may vary within acceptable engineering tolerances provided the substitute meets or exceeds the original specification. Contact material composition may differ while maintaining electrical performance.

Two substitute parts meet these criteria: MY4-02-DC24 (Omron, 3A rating) and MYQ4-02-DC24 (Omron, 1A rating with sealed construction).

Parameter Comparison

Parameter	HC4E-HP-DC24V (Main)	MY4-02-DC24 (Substitute)	MYQ4-02-DC24 (Substitute)
Manufacturer	Panasonic Electric Works	Omron Automation and Safety	Omron Automation and Safety
Coil Voltage	24VDC	24VDC	24VDC
Contact Form	4PDT (4 Form C)	4PDT (4 Form C)	4PDT (4 Form C)
Contact Rating (Current)	2 A	3 A	1 A
Switching Voltage	250VAC - Max	250VAC, 125VDC - Max	250VAC, 125VDC - Max
Coil Current	37 mA	36.9 mA	36.9 mA
Coil Type	Non Latching	Non Latching	Non Latching
Mounting Type	Through Hole	Through Hole	Through Hole
Termination Style	PC Pin	PC Pin	PC Pin
Must Operate Voltage	19.2 VDC	19.2 VDC	19.2 VDC
Must Release Voltage	2.4 VDC	2.4 VDC	2.4 VDC
Operate Time	20 ms	20 ms	20 ms
Release Time	20 ms	20 ms	20 ms
Operating Temperature	-40°C ~ 60°C	-55°C ~ 70°C	-55°C ~ 60°C
Coil Resistance	650 Ohms	650 Ohms	650 Ohms
Product Status	Obsolete	Active	Active
Seal Rating	Not specified	Not specified	Sealed - Fully

Engineering Selection Recommendations

Both MY4-02-DC24 and MYQ4-02-DC24 are active products from Omron Automation and Safety, providing long-term availability and supply chain stability compared to the obsolete HC4E-HP-DC24V.

MY4-02-DC24 offers a 3A contact rating, exceeding the original 2A specification, and extends the operating temperature range to -55°C ~ 70°C. This part is RoHS3 compliant and REACH unaffected, meeting modern regulatory requirements.

MYQ4-02-DC24 provides a 1A contact rating with fully sealed construction, suitable for applications requiring environmental protection. Operating temperature range is -55°C ~ 60°C. This part is RoHS compliant and REACH unaffected.

Selection between the two substitutes depends on application current requirements: use MY4-02-DC24 for applications requiring 2A or higher switching capacity, or MYQ4-02-DC24 for applications with lower current demands where sealed construction is beneficial.

Frequently Asked Questions (FAQ)

Q: Can MY4-02-DC24 directly replace HC4E-HP-DC24V in existing designs?

A: Yes. Both parts share identical coil voltage (24VDC), contact form (4PDT), coil resistance (650 Ohms), and switching timing (20 ms operate/release). The MY4-02-DC24 provides higher contact current rating (3A vs 2A) and extended temperature range, making it functionally compatible for the original application.

Q: What is the difference between MY4-02-DC24 and MYQ4-02-DC24?

A: The primary differences are contact current rating and seal construction. MY4-02-DC24 is rated for 3A with unsealed construction, while MYQ4-02-DC24 is rated for 1A with fully sealed construction. Both share identical coil specifications and switching characteristics. Select based on application current requirements and environmental exposure.

Q: Are there packaging differences between these substitutes?

A: Yes. MY4-02-DC24 is supplied in trays, while MYQ4-02-DC24 is supplied in bulk packaging. Both use PC pin through-hole termination compatible with standard PCB mounting.

Q: Do the substitute parts meet current compliance standards?

A: MY4-02-DC24 is RoHS3 compliant and REACH unaffected. MYQ4-02-DC24 is RoHS compliant and REACH unaffected. Both parts carry EAR99 ECCN classification.

Q: What is the coil current specification for the substitutes?

A: Both MY4-02-DC24 and MYQ4-02-DC24 have coil current of 36.9 mA, matching the original HC4E-HP-DC24V specification of 37 mA within standard engineering tolerance.

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