JS1APF-B-48V-F Equivalent & Substitute Parts

Part Overview

The JS1APF-B-48V-F is a general purpose relay manufactured by Panasonic Electric Works, configured as a single-pole single-throw normally open (SPST-NO) contact form with a 48VDC coil. This through-hole mounted relay is rated for 10A switching capacity and operates across an industrial temperature range of -40°C to 85°C. The product is currently obsolete, making identification of equivalent and substitute parts essential for ongoing maintenance, repair, and legacy system support.

Substiute Parts

JS1APF-B-48V-F

Panasonic Electric WorksIn Stock: 1008JS1APF-B-48V-F Datasheet

Current PartRFQ

ALQ348

Panasonic Electric WorksIn Stock: 1184ALQ348 Datasheet

SimilarRFQ

JS1AF-B-48V-F

Panasonic Electric WorksIn Stock: 968JS1AF-B-48V-F Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the JS1APF-B-48V-F is determined by the following critical parameters:

• Coil Voltage: 48VDC (exact match required for direct circuit compatibility)
• Contact Form: SPST-NO configuration (functional switching topology)
• Mounting Type: Through hole (physical board integration)
• Operating Temperature Range: -40°C to 85°C (environmental compatibility)
• Coil Insulation Class: Class B (thermal and electrical safety rating)

Substitute parts must maintain compatibility across these parameters. Secondary considerations include contact current rating, switching voltage limits, and coil current draw, which determine application suitability within the relay's operational envelope.

Parameter Comparison

Engineering Selection Recommendations

JS1AF-B-48V-F is a parametric equivalent offering identical electrical and thermal characteristics to the JS1APF-B-48V-F. Both relays share the same 48VDC coil voltage, 10A contact rating, 250VAC/100VDC switching voltage limits, and Class B coil insulation. The primary distinction is packaging format (bulk versus standard). Both parts are obsolete, indicating limited future availability. This part is suitable for direct replacement in applications requiring full electrical equivalence.

ALQ348 is a functional substitute with reduced contact current rating (5A versus 10A) and lower maximum DC switching voltage (30VDC versus 100VDC). The ALQ348 maintains the same 48VDC coil voltage, SPST-NO contact form, through-hole mounting, and operating temperature range. The ALQ348 is currently active in production, providing superior long-term availability. This part is suitable for applications where the 5A contact rating and 30VDC switching limit are within system requirements. The ALQ348 includes third-party certifications (CQC, cURuus, VDE) not specified for the main part.

Selection between these substitutes depends on application current and voltage requirements. For circuits requiring the full 10A switching capacity or 100VDC switching capability, JS1AF-B-48V-F is the appropriate choice. For circuits operating within 5A and 30VDC limits, ALQ348 offers the advantage of active production status and extended availability.

Frequently Asked Questions (FAQ)

Q: Can ALQ348 replace JS1APF-B-48V-F in all applications?

A: ALQ348 is functionally compatible only in applications where the contact current does not exceed 5A and the DC switching voltage does not exceed 30VDC. If your circuit requires the full 10A rating or switches voltages above 30VDC, ALQ348 is not suitable. Verify your application's actual current and voltage requirements before substitution.

Q: What is the difference between JS1APF-B-48V-F and JS1AF-B-48V-F?

A: These parts are parametric equivalents with identical electrical specifications. The difference is packaging: JS1APF-B-48V-F uses standard packaging while JS1AF-B-48V-F uses bulk packaging. Both are obsolete products from Panasonic Electric Works.

Q: Why is product status important for relay selection?

A: Obsolete parts have limited inventory and no future manufacturing. Active products like ALQ348 ensure continued availability for future orders and system maintenance. When selecting substitutes, active status provides supply chain security.

Q: Are there any certifications I should consider?

A: ALQ348 carries CQC, cURuus, and VDE certifications. JS1APF-B-48V-F and JS1AF-B-48V-F are RoHS compliant. Verify that your application requirements align with available certifications before final selection.

Q: What does SPST-NO contact form mean?

A: SPST-NO (Single-Pole Single-Throw Normally Open) means the relay has one switching contact that is open when de-energized and closes when the coil is energized. This is the standard general-purpose relay configuration.

Q: Can I use these relays interchangeably based on coil voltage alone?

A: No. While 48VDC coil voltage is a necessary condition for substitution, contact current rating, switching voltage limits, and mounting type must also match your application requirements. Always verify all electrical parameters before substitution.