ALE1PB12 Equivalent & Substitute Parts

Part Overview

The ALE1PB12 is a general purpose relay manufactured by Panasonic Electric Works, configured as a SPST-NO (1 Form A) with a 12VDC coil and 16A contact rating. This through-hole mounted relay is designed for switching applications up to 277VAC maximum. The part is currently obsolete, making equivalent substitute parts necessary for ongoing system maintenance and new design implementations where this relay specification remains applicable.

Substiute Parts

ALE1PB12

Panasonic Electric WorksIn Stock: 1718ALE1PB12 Datasheet

Current PartRFQ

ALZN5B12W

Panasonic Electric WorksIn Stock: 1246ALZN5B12W Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The ALZN5B12W qualifies as a direct substitute for the ALE1PB12 based on the following critical parameters:

• Identical coil voltage (12VDC) and coil resistance (360 Ohms)
• Matching contact form (SPST-NO) and contact rating (16A)
• Identical mounting type (Through Hole) and termination style (PC Pin)
• Identical coil type (Non Latching) and contact material (Silver Tin Oxide)
• Identical operating temperature range (-40°C ~ 85°C)
• Identical MSL rating (1 - Unlimited)

The ALZN5B12W demonstrates enhanced electrical performance characteristics (440VAC maximum switching voltage versus 277VAC, and 7040VA maximum load switching versus 4432VA) while maintaining full backward compatibility with the ALE1PB12 specification envelope.

Parameter Comparison

Engineering Selection Recommendations

The ALZN5B12W is the active production equivalent for the obsolete ALE1PB12. Both relays are manufactured by Panasonic Electric Works and share identical core electrical specifications. The ALZN5B12W carries ROHS3 compliance and holds active product status, ensuring long-term availability and supply chain continuity.

The ALZN5B12W demonstrates improved operational characteristics including faster operate and release times (15ms and 5ms respectively versus 20ms each), lower must-operate voltage (8.4VDC versus 9VDC), and enhanced switching capacity (440VAC maximum versus 277VAC). These improvements provide superior performance margins without requiring circuit redesign.

Both parts maintain identical coil voltage, current draw, resistance, and termination specifications, ensuring direct PCB compatibility in through-hole applications. The sealed flux protection rating of the ALZN5B12W provides additional environmental robustness compared to the original specification.

Frequently Asked Questions (FAQ)

Q: Can the ALZN5B12W directly replace the ALE1PB12 in existing circuits?

A: Yes. Both relays share identical coil voltage (12VDC), coil current (33.3mA), contact form (SPST-NO), contact rating (16A), and PC pin termination. The ALZN5B12W operates within the same temperature range and maintains equivalent mechanical and electrical interfaces.

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

A: The ALZN5B12W offers enhanced performance: maximum switching voltage of 440VAC (versus 277VAC), maximum load switching of 7040VA (versus 4432VA), faster switching times (15ms operate and 5ms release versus 20ms each), and sealed flux protection. The ALZN5B12W is in active production while the ALE1PB12 is obsolete.

Q: Are there packaging differences between the ALE1PB12 and ALZN5B12W?

A: The ALE1PB12 is supplied in standard packaging, while the ALZN5B12W is supplied in tray packaging. Both are through-hole mounted components with PC pin termination suitable for PCB assembly.

Q: What certifications apply to the ALZN5B12W?

A: The ALZN5B12W holds cURus and VDE approvals, with ROHS3 compliance and REACH unaffected status. The original ALE1PB12 held CSA, TUV, UR, and VDE approvals with RoHS compliance.

Q: Is the ALZN5B12W suitable for applications requiring 277VAC switching?

A: Yes. The ALZN5B12W maximum switching voltage rating of 440VAC exceeds the 277VAC requirement, providing adequate margin for such applications.