ALE1PB18 Equivalent & Substitute Parts

Part Overview

The ALE1PB18 is a general purpose relay manufactured by Panasonic Electric Works, configured as a SPST-NO (1 Form A) with an 18VDC coil and 16A contact rating. This through-hole mounted relay is designed for applications requiring single-pole, single-throw switching at 277VAC maximum switching voltage with a maximum load capacity of 4432VA.

The ALE1PB18 is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or maintenance requirements for systems utilizing this relay.

Substiute Parts

ALE1PB18

Panasonic Electric WorksIn Stock: 842ALE1PB18 Datasheet

Current PartRFQ

ALZN5B18W

Panasonic Electric WorksIn Stock: 1074ALZN5B18W Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ALE1PB18 is determined by the following critical parameters:

• Coil voltage: 18VDC (exact match required)
• Contact form: SPST-NO (1 Form A) (exact match required)
• Contact rating: 16A minimum (equal or higher acceptable)
• Mounting type: Through Hole (exact match required)
• Coil current: 22.2 mA (exact match required)
• Coil resistance: 810 Ohms (exact match required)
• Termination style: PC Pin (exact match required)
• Operating temperature range: -40°C ~ 85°C (equal or wider acceptable)
• Contact material: Silver Tin Oxide (AgSnO) (exact match required)
• RoHS compliance: Required

The ALZN5B18W meets all substitution criteria. While it exhibits enhanced electrical performance characteristics (higher maximum switching voltage and load capacity) and improved operational timing, these represent functional improvements rather than incompatibilities. The substitute maintains identical coil specifications, contact configuration, mounting methodology, and environmental operating range.

Parameter Comparison

Engineering Selection Recommendations

The ALZN5B18W is the qualified substitute for the obsolete ALE1PB18. Both relays are manufactured by Panasonic Electric Works and maintain identical coil specifications, contact configuration, and mounting characteristics essential for direct replacement.

The ALZN5B18W carries active product status, ensuring ongoing availability and supply chain support. Both parts maintain RoHS compliance and Class B coil insulation ratings. The ALZN5B18W includes sealed flux protection, providing enhanced environmental protection compared to the original part.

Regulatory certifications differ between the two parts. The ALE1PB18 holds CSA, TUV, UR, and VDE approvals, while the ALZN5B18W holds cURus and VDE approvals. Application-specific certification requirements must be evaluated against the target system's regulatory framework.

Frequently Asked Questions (FAQ)

Q: Can the ALZN5B18W directly replace the ALE1PB18 in existing circuit designs?

A: Yes. Both relays share identical coil voltage (18VDC), contact form (SPST-NO), current rating (16A), coil current (22.2 mA), coil resistance (810 Ohms), and termination style (PC Pin through-hole). Electrical and mechanical compatibility is established.

Q: What are the differences in electrical performance between these two relays?

A: The ALZN5B18W supports higher maximum switching voltage (440VAC versus 277VAC) and greater maximum load capacity (7040VA versus 4432VA). These represent enhanced performance margins and do not create incompatibility with applications designed for the ALE1PB18.

Q: How do the operational timing characteristics differ?

A: The ALZN5B18W exhibits faster operate time (15 ms versus 20 ms) and significantly faster release time (5 ms versus 20 ms). These improvements do not negatively impact compatibility with existing circuit designs.

Q: What is the significance of the sealed flux protection on the ALZN5B18W?

A: Sealed flux protection provides enhanced resistance to environmental contamination and moisture ingress during manufacturing and field deployment. This feature improves long-term reliability in industrial environments.

Q: Are there packaging differences between these parts?

A: The ALE1PB18 packaging specification is not provided. The ALZN5B18W is supplied in tray packaging. Packaging format should be confirmed against procurement and assembly requirements.

Q: Which regulatory certifications apply to my application?

A: The ALE1PB18 holds CSA, TUV, UR, and VDE certifications. The ALZN5B18W holds cURus and VDE certifications. Verify that the substitute part's certification portfolio meets your application's regulatory requirements before implementation.