JM1AN-TMP-DC48V Equivalent & Substitute Parts

Part Overview

The JM1AN-TMP-DC48V is a general purpose relay manufactured by Panasonic Electric Works, configured as a SPST-NO (1 Form A) with a 48VDC coil and 20A contact rating. This through-hole mounted relay is designed for applications requiring single-pole, single-throw switching at 250VAC maximum. The product is currently obsolete, making identification of compatible substitute parts essential for system maintenance, repair, and redesign applications where continued availability is required.

Substiute Parts

JM1AN-TMP-DC48V

Panasonic Electric WorksIn Stock: 1118JM1AN-TMP-DC48V Datasheet

Current PartRFQ

HE1AN-P-DC48V

Panasonic Electric WorksIn Stock: 1163HE1AN-P-DC48V Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the JM1AN-TMP-DC48V is determined by the following critical parameters:

• Coil Voltage Match: 48VDC (must operate at 33.6 VDC minimum, release at 4.8 VDC maximum)
• Contact Configuration: SPST-NO (1 Form A) topology
• Mounting Interface: Through-hole with PC pin termination
• Contact Current Capacity: Minimum 20A rating required
• Switching Voltage Capability: Minimum 250VAC support

The HE1AN-P-DC48V meets all substitution criteria. While it provides higher contact current capacity (30A versus 20A), this represents an upward-compatible rating that does not compromise circuit performance. The substitute maintains identical coil voltage specifications, contact form, mounting type, and exceeds the switching voltage requirement (277VAC maximum).

Parameter Comparison

Engineering Selection Recommendations

The HE1AN-P-DC48V is the appropriate substitute for the obsolete JM1AN-TMP-DC48V based on the following factors:

Product Status: The main part is obsolete, while the substitute is active and maintains current manufacturing support from Panasonic Electric Works.

Regulatory Compliance: Both parts share identical ECCN classification (EAR99) and MSL rating (1 - Unlimited). The substitute carries RoHS Compliant status, meeting modern environmental standards.

Functional Compatibility: The substitute maintains all critical operating parameters—coil voltage, contact configuration, mounting interface, and minimum switching voltage capability. The higher contact current rating (30A) provides margin above the 20A requirement without introducing incompatibility.

Operational Differences: The substitute exhibits slightly longer operate time (30ms versus 20ms) and higher coil current draw (40mA versus 18.8mA). These differences must be evaluated within the context of the specific application's timing and power supply constraints.

Frequently Asked Questions (FAQ)

Q: Can the HE1AN-P-DC48V directly replace the JM1AN-TMP-DC48V in existing designs?

A: Direct replacement is possible from a functional standpoint. The substitute maintains identical coil voltage, contact configuration, and mounting interface. However, the increased coil current (40mA versus 18.8mA) requires verification that the control circuit power supply can accommodate this higher draw. The longer operate time (30ms versus 20ms) must be evaluated against application timing requirements.

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

A: The primary differences are contact current capacity (30A versus 20A), coil current consumption (40mA versus 18.8mA), operate time (30ms versus 20ms), and contact material composition (Silver Tin Oxide versus Silver Alloy). The substitute provides higher switching voltage capability (277VAC maximum versus 250VAC) and operates across a slightly wider temperature range (-50°C to 55°C versus -40°C to 60°C).

Q: Are there packaging or termination differences?

A: Both relays use through-hole mounting with PC pin termination. The main part specifies Quick Connect - 0.250" (6.3mm) termination, while the substitute lists PC Pin termination. Physical verification of pin compatibility with existing PCB layouts is required before implementation.

Q: What compliance certifications apply to the substitute?

A: The HE1AN-P-DC48V carries RoHS Compliant certification and maintains EAR99 export classification. Both parts have MSL rating of 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.

Q: Should coil resistance differences affect the substitution decision?

A: The substitute has lower coil resistance (1.2 kOhms versus 2.56 kOhms), resulting in higher coil current draw at the same voltage. This is a direct consequence of the higher contact current capacity design. The control circuit must be capable of supplying the increased current without voltage sag that would prevent proper relay operation.