HC2-HPL-AC48V-F Equivalent & Substitute Parts

Part Overview

The HC2-HPL-AC48V-F is a general purpose relay manufactured by Panasonic Electric Works, featuring a DPDT (2 Form C) contact configuration with a 48VAC coil. This through-hole mounted relay is designed for industrial control applications requiring 7A contact rating at 250VAC maximum switching voltage. 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

HC2-HPL-AC48V-F

Panasonic Electric WorksIn Stock: 1055HC2-HPL-AC48V-F Datasheet

Current PartRFQ

PT270548

TE Connectivity Potter & Brumfield RelaysIn Stock: 764PT270548 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the HC2-HPL-AC48V-F is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Coil voltage: 48VAC (exact match required)
• Contact form: DPDT (2 Form C) configuration
• Coil type: Non Latching
• Must operate voltage: 38.4 VAC
• Must release voltage: 14.4 VAC

Allowable Variation Parameters:

• Contact rating (current): Substitute must equal or exceed 7A minimum
• Switching voltage: Substitute must equal or exceed 250VAC maximum
• Operating temperature range: Substitute must encompass or exceed -50°C ~ 60°C
• Mounting type: May differ (through-hole to socketable conversion acceptable with appropriate adapter consideration)
• Termination style: May differ (PC pin to plug-in conversion acceptable with appropriate connector consideration)
• Contact material: May differ if cadmium-free compliance is maintained

The PT270548 satisfies all mandatory matching parameters and exceeds allowable variation thresholds, qualifying as a direct functional substitute.

Parameter Comparison

Engineering Selection Recommendations

The PT270548 is a qualified substitute for the HC2-HPL-AC48V-F based on the following engineering criteria:

Functional Equivalence: Both relays share identical coil voltage (48VAC), contact configuration (DPDT), coil type (non-latching), and critical operating thresholds (38.4 VAC must-operate, 14.4 VAC must-release). These parameters ensure functional interchangeability in control circuits.

Performance Enhancement: The PT270548 provides superior electrical ratings with 12A contact current capacity versus 7A, and 400VAC maximum switching voltage versus 250VAC. These enhancements ensure the substitute operates safely within existing circuit parameters with additional margin.

Compliance Status: The PT270548 is ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements. The HC2-HPL-AC48V-F compliance status is not specified.

Availability: The PT270548 is active product status with 678 units in stock, whereas the HC2-HPL-AC48V-F is obsolete. Selection of the PT270548 ensures long-term supply continuity.

Integration Consideration: The PT270548 uses socketable mounting with plug-in termination versus through-hole PC pin termination. Circuit board redesign or adapter implementation is required for direct substitution.

Frequently Asked Questions (FAQ)

Q: Can the PT270548 directly replace the HC2-HPL-AC48V-F without circuit modification?

A: The PT270548 is functionally equivalent but requires mechanical integration consideration. The HC2-HPL-AC48V-F uses through-hole PC pin termination, while the PT270548 uses socketable plug-in termination. Direct board-level substitution requires either circuit board redesign to accommodate the socketable base or use of an appropriate mechanical adapter.

Q: Are the coil operating characteristics identical between these relays?

A: Yes. Both relays operate on 48VAC coil voltage with identical must-operate voltage (38.4 VAC) and must-release voltage (14.4 VAC). Coil current for the PT270548 is not specified in available data, but the matching operating thresholds ensure compatible circuit behavior.

Q: What is the significance of the higher contact rating on the PT270548?

A: The PT270548 provides 12A contact rating versus 7A on the HC2-HPL-AC48V-F. This higher rating does not affect substitution compatibility; it indicates the substitute can safely handle equal or greater current loads. Existing circuits designed for 7A operation remain fully compatible.

Q: Does the higher maximum switching voltage on the PT270548 affect circuit compatibility?

A: No. The PT270548 supports 400VAC maximum switching voltage versus 250VAC on the HC2-HPL-AC48V-F. Circuits designed for 250VAC operation remain fully compatible, as the substitute simply provides additional voltage margin.

Q: Are there temperature range differences between these relays?

A: The PT270548 operating temperature range (-40°C ~ 70°C) encompasses the HC2-HPL-AC48V-F range (-50°C ~ 60°C) except at the lower extreme. For applications requiring operation below -40°C, the HC2-HPL-AC48V-F specification must be verified against actual system requirements.

Q: What contact material differences exist, and do they affect substitution?

A: The HC2-HPL-AC48V-F uses silver alloy cadmium-free contacts, while the PT270548 uses silver nickel (AgNi) contacts. Both materials are cadmium-free and suitable for general purpose relay applications. Contact material selection does not prevent substitution.

Q: Is the PT270548 the only available substitute?

A: Based on provided data, the PT270548 is the identified substitute. Additional equivalent parts may exist but are not included in this reference.