HC4D-HP-DC24V Equivalent & Substitute Parts

Part Overview

The HC4D-HP-DC24V is a general purpose relay manufactured by Panasonic Electric Works, featuring a 4PDT (4 Form C) contact configuration with a 24VDC coil and 3A contact rating. This through-hole mounted relay is designed for industrial control applications requiring multiple independent switching circuits. The product is currently obsolete, making equivalent substitutes necessary for new designs, repairs, and system upgrades where continued availability and performance are required.

Substiute Parts

HC4D-HP-DC24V

Panasonic Electric WorksIn Stock: 770HC4D-HP-DC24V Datasheet

Current PartRFQ

MY4Z-02-DC24

Omron Automation and SafetyIn Stock: 875MY4Z-02-DC24 Datasheet

DirectRFQ

KHAE-17D11-24

TE Connectivity Potter & Brumfield RelaysIn Stock: 1188KHAE-17D11-24 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the HC4D-HP-DC24V is determined by strict equivalence across the following critical parameters:

Primary Equivalence Criteria:

• Coil voltage: 24VDC
• Contact configuration: 4PDT (4 Form C)
• Contact current rating: 3 A minimum
• Mounting type: Through hole
• Termination style: PC pin
• Coil type: Non latching

Secondary Compatibility Factors:

• Switching voltage capability: Must support at least 250VAC
• Operating temperature range: Must encompass the application environment
• Coil activation thresholds: Must operate at 19.2 VDC and release at 2.4 VDC or lower

The two substitute parts listed below meet all primary equivalence criteria and are therefore direct functional replacements for the obsolete HC4D-HP-DC24V.

Parameter Comparison

Engineering Selection Recommendations

MY4Z-02-DC24 (Omron Automation and Safety)

This substitute provides the closest electrical match to the HC4D-HP-DC24V. Coil voltage, contact configuration, current rating, coil current, coil resistance, and activation thresholds are identical. The operating temperature range extends to -55°C, providing superior low-temperature performance. The part is active in production with ROHS3 compliance and REACH unaffected status, ensuring long-term availability and regulatory compliance. Switching voltage capability includes both 250VAC and 125VDC ratings.

KHAE-17D11-24 (TE Connectivity Potter & Brumfield Relays)

This substitute meets all primary equivalence criteria with identical coil voltage, contact configuration, and current rating. The must operate voltage is 18 VDC, which is lower than the original 19.2 VDC specification, providing improved sensitivity. Operate and release times are faster (13 ms and 6 ms respectively) compared to the original 20 ms specification. The part is active in production with ROHS3 compliance. REACH affected status indicates regulatory documentation requirements. Switching voltage is rated at 240VAC maximum.

Both substitutes are suitable for direct replacement in applications where the HC4D-HP-DC24V was originally specified. Selection between them depends on specific application requirements regarding temperature range, switching voltage limits, and response time characteristics.

Frequently Asked Questions (FAQ)

Q: Can MY4Z-02-DC24 and KHAE-17D11-24 be used interchangeably with HC4D-HP-DC24V?

A: Both parts meet the core functional requirements: 24VDC coil, 4PDT contact configuration, 3A current rating, through-hole mounting, and PC pin termination. They are direct functional equivalents. Minor differences in switching voltage limits, operating temperature ranges, and response times exist and should be evaluated against specific application requirements.

Q: What is the significance of the different switching voltage ratings?

A: The HC4D-HP-DC24V and MY4Z-02-DC24 are rated for 250VAC maximum switching voltage. The KHAE-17D11-24 is rated for 240VAC maximum. For applications switching at or near 250VAC, the Omron MY4Z-02-DC24 provides full compatibility with the original specification. For applications below 240VAC, all three parts are suitable.

Q: How do the operating temperature ranges compare?

A: The HC4D-HP-DC24V operates from -50°C to 70°C. The MY4Z-02-DC24 extends the lower limit to -55°C, providing superior cold-temperature performance. The KHAE-17D11-24 operates from -45°C to 70°C, which is narrower than the original. For applications requiring operation below -45°C, the Omron substitute is preferred.

Q: Are there compliance differences between the substitutes?

A: Both MY4Z-02-DC24 and KHAE-17D11-24 are ROHS3 compliant. The Omron part has REACH unaffected status, while the TE Connectivity part has REACH affected status, requiring additional regulatory documentation for certain markets. Verify compliance requirements for your specific application and region.

Q: What is the difference in response time between the substitutes?

A: The HC4D-HP-DC24V has 20 ms operate and 20 ms release times. The MY4Z-02-DC24 maintains identical timing at 20 ms for both operations. The KHAE-17D11-24 operates faster at 13 ms operate time and 6 ms release time. For timing-critical applications, verify that faster response times do not introduce unintended switching behavior.

Q: Can I use these substitutes in new designs?

A: Yes. Both MY4Z-02-DC24 and KHAE-17D11-24 are active production parts with established supply chains. They are suitable for new designs as direct replacements for the obsolete HC4D-HP-DC24V, provided that the minor parameter differences documented in the comparison table are compatible with your application requirements.