HC2-HP-DC24V Equivalent & Substitute Parts

Part Overview

The HC2-HP-DC24V is a general purpose relay manufactured by Panasonic Electric Works, featuring a DPDT (2 Form C) contact configuration with a 24VDC coil. This through-hole mounted relay is rated for 7A at 250VAC maximum switching voltage and operates with a 37mA coil current. The product is currently obsolete, making identification of compatible substitute parts essential for ongoing system maintenance and new design implementations where equivalent functionality is required.

Key Parameters

Parameter	HC2-HP-DC24V
Manufacturer	Panasonic Electric Works
Coil Voltage	24VDC
Contact Form	DPDT (2 Form C)
Contact Rating (Current)	7A
Switching Voltage	250VAC - Max
Coil Current	37mA
Coil Resistance	650 Ohms
Mounting Type	Through Hole
Termination Style	PC Pin
Must Operate Voltage	19.2VDC
Must Release Voltage	2.4VDC
Operating Temperature Range	-50°C ~ 70°C
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the HC2-HP-DC24V is determined by the following critical parameters that must remain consistent:

Coil Voltage: 24VDC (exact match required)
Contact Form: DPDT (2 Form C) configuration (exact match required)
Coil Resistance: 650 Ohms (exact match required)
Coil Current: Approximately 36-37mA (within tolerance)
Mounting Type: Through Hole (exact match required)
Termination Style: PC Pin (exact match required)
Must Operate Voltage: 19.2VDC (exact match required)
Must Release Voltage: 2.4VDC (exact match required)

The MY2-02-DC24 from Omron Automation and Safety meets all critical substitution criteria. While the contact rating differs (5A versus 7A), this represents a derating that maintains functional compatibility for applications within the 5A limit. The switching voltage specification of 250VAC on the MY2-02-DC24 matches the maximum rating of the original part.

Parameter Comparison

Parameter	HC2-HP-DC24V (Panasonic)	MY2-02-DC24 (Omron)	Compatibility Notes
Coil Voltage	24VDC	24VDC	Exact match
Contact Form	DPDT (2 Form C)	DPDT (2 Form C)	Exact match
Contact Rating (Current)	7A	5A	Substitute rated lower; suitable for applications ≤5A
Switching Voltage	250VAC - Max	250VAC, 125VDC - Max	Compatible; substitute offers additional 125VDC rating
Coil Current	37mA	36.9mA	Equivalent
Coil Resistance	650 Ohms	650 Ohms	Exact match
Mounting Type	Through Hole	Through Hole	Exact match
Termination Style	PC Pin	PC Pin	Exact match
Must Operate Voltage	19.2VDC	19.2VDC	Exact match
Must Release Voltage	2.4VDC	2.4VDC	Exact match
Operate Time	10ms	20ms	Substitute has longer response time
Release Time	5ms	20ms	Substitute has longer release time
Operating Temperature Range	-50°C ~ 70°C	-55°C ~ 70°C	Substitute offers extended low-temperature range
Product Status	Obsolete	Active	Substitute is currently in production
RoHS Status	Not specified	RoHS Compliant	Substitute meets RoHS requirements

Engineering Selection Recommendations

The MY2-02-DC24 is a direct functional substitute for the HC2-HP-DC24V based on matching coil voltage, contact configuration, coil resistance, and operating thresholds. The primary consideration for selection is the reduced contact current rating of 5A versus the original 7A specification. Applications requiring current switching above 5A must retain the original HC2-HP-DC24V or identify alternative parts with higher current ratings.

The MY2-02-DC24 offers advantages in terms of product availability (active status versus obsolete), RoHS compliance, and extended low-temperature operating range (-55°C versus -50°C). Timing characteristics differ, with the substitute exhibiting longer operate and release times (20ms each versus 10ms and 5ms respectively). Applications with strict timing requirements should evaluate whether these differences impact system performance.

Both parts share identical REACH and ECCN classifications, confirming regulatory equivalence for export and compliance purposes.

Frequently Asked Questions (FAQ)

Q: Can the MY2-02-DC24 directly replace the HC2-HP-DC24V in all applications?

A: Direct replacement is possible only for applications where the switched current does not exceed 5A. The MY2-02-DC24 is rated for 5A maximum, compared to the HC2-HP-DC24V's 7A rating. If your application requires switching currents between 5A and 7A, the MY2-02-DC24 is not suitable.

Q: What are the timing differences between these relays?

A: The HC2-HP-DC24V operates in 10ms and releases in 5ms. The MY2-02-DC24 operates in 20ms and releases in 20ms. Applications requiring fast switching response should account for this 2x increase in timing. Verify that your circuit design tolerates these longer response times.

Q: Are the coil specifications identical?

A: Yes. Both relays have 24VDC coils with 650 Ohm resistance and 36-37mA coil current. The must-operate and must-release voltage thresholds are also identical at 19.2VDC and 2.4VDC respectively.

Q: What is the packaging difference?

A: The HC2-HP-DC24V packaging is listed as standard through-hole. The MY2-02-DC24 is supplied in Tray packaging. Both use PC Pin termination suitable for PCB mounting.

Q: Does the MY2-02-DC24 meet modern compliance standards?

A: Yes. The MY2-02-DC24 is RoHS Compliant and carries the same REACH Unaffected and EAR99 ECCN classifications as the original part. Both parts share identical HTSUS codes (8536.41.0020).

Q: Can I use the MY2-02-DC24 in temperature-critical applications?

A: The MY2-02-DC24 operates from -55°C to 70°C, providing a 5°C lower temperature limit compared to the HC2-HP-DC24V (-50°C to 70°C). For applications requiring operation below -50°C, the original specification must be maintained or alternative parts evaluated.

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