ALE13B18 General Purpose Relay SPST 16A 18VDC - Equivalent & Substitute Parts

Part Overview

The ALE13B18 is a general purpose relay manufactured by Panasonic Electric Works, configured as a single-pole single-throw normally open (SPST-NO) contact form with an 18VDC coil. This through-hole mounted relay is rated for 16A switching capacity at 277VAC maximum and is designed for non-latching applications requiring reliable electromagnetic switching in industrial and commercial equipment.

The ALE13B18 is classified as obsolete. Identifying equivalent and substitute parts is essential for maintaining system functionality in legacy equipment, ensuring design continuity in production environments, and supporting long-term product support where original components are no longer readily available.

Substiute Parts

ALE13B18

Panasonic Electric WorksIn Stock: 960ALE13B18 Datasheet

Current PartRFQ

ALE12B18

Panasonic Electric WorksIn Stock: 1286ALE12B18 Datasheet

Parametric EquivalentRFQ

RZF1-1A4-L018

TE Connectivity Potter & Brumfield RelaysIn Stock: 1158RZF1-1A4-L018 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ALE13B18 is determined by strict alignment of 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)
• Termination style: PC Pin, Quick Connect - 0.187" (4.7mm) (exact match required)
• Operating temperature range: -40°C ~ 85°C minimum (equal or wider acceptable)
• RoHS compliance: Required for modern supply chains

The identified substitutes meet these core criteria. Variations in coil current, coil resistance, switching voltage maximum, operate/release times, and contact material represent acceptable engineering tolerances within the SPST-NO relay category and do not preclude functional substitution in standard applications.

Parameter Comparison

Engineering Selection Recommendations

ALE12B18 (Panasonic Electric Works): This part is a parametric equivalent to the ALE13B18, sharing identical coil voltage, contact form, current rating, mounting configuration, and termination style. Both parts are obsolete and RoHS compliant. The ALE12B18 represents the primary equivalent choice for direct substitution in legacy system maintenance and repair applications.

RZF1-1A4-L018 (TE Connectivity Potter & Brumfield Relays): This part meets all critical substitution criteria with matching coil voltage, contact form, current rating, mounting type, and termination style. The RZF1-1A4-L018 offers enhanced switching voltage capability (400VAC vs. 277VAC) and faster response times (8ms operate, 6ms release vs. 20ms each). The higher coil current (29.5mA vs. 22.2mA) and lower coil resistance (611 Ohms vs. 810 Ohms) require verification of driver circuit compatibility. This part is suitable for applications where improved switching performance and higher voltage tolerance are beneficial. Both parts are obsolete and RoHS compliant.

Frequently Asked Questions (FAQ)

Q: Can the ALE12B18 be used as a direct replacement for the ALE13B18?

A: Yes. The ALE12B18 is a parametric equivalent with identical electrical specifications for coil voltage (18VDC), contact form (SPST-NO), current rating (16A), mounting type (through hole), and termination style (PC Pin, Quick Connect - 0.187"). Both parts are manufactured by Panasonic Electric Works and share the same operating temperature range and RoHS compliance status.

Q: What are the key differences between the ALE13B18 and RZF1-1A4-L018?

A: The RZF1-1A4-L018 maintains compatibility in coil voltage, contact form, current rating, mounting type, and termination style. Differences include: switching voltage maximum (400VAC vs. 277VAC), coil current (29.5mA vs. 22.2mA), coil resistance (611 Ohms vs. 810 Ohms), operate time (8ms vs. 20ms), release time (6ms vs. 20ms), contact material (Silver Nickel vs. Silver Tin Oxide), and coil insulation class (Class F vs. Class B). The RZF1-1A4-L018 is manufactured by TE Connectivity Potter & Brumfield Relays and supplied in tube packaging rather than bulk.

Q: Does the higher coil current of the RZF1-1A4-L018 affect circuit compatibility?

A: The RZF1-1A4-L018 requires 29.5mA coil current compared to 22.2mA for the ALE13B18. This difference must be evaluated against the driver circuit's current supply capability. The lower coil resistance (611 Ohms vs. 810 Ohms) of the RZF1-1A4-L018 results in proportionally higher current draw at 18VDC. Verify that the control circuit can supply the additional current without exceeding component ratings or causing voltage drop issues.

Q: Are all three parts RoHS compliant?

A: Yes. The ALE13B18, ALE12B18, and RZF1-1A4-L018 are all RoHS compliant, meeting environmental and regulatory requirements for modern electronics manufacturing and supply chains.

Q: What is the significance of the different packaging formats?

A: The ALE13B18 and ALE12B18 are supplied in bulk packaging, while the RZF1-1A4-L018 is supplied in tube packaging. Packaging format affects handling, storage, and integration into automated assembly processes. Bulk packaging is typical for high-volume applications, while tube packaging provides individual component protection and is common for lower-volume or manual assembly scenarios.

Q: Can the RZF1-1A4-L018 be used in applications requiring the exact 277VAC switching voltage specification?

A: The RZF1-1A4-L018 supports 400VAC maximum switching voltage, which exceeds the 277VAC specification of the ALE13B18. This higher rating provides additional margin and is compatible with 277VAC applications. The part is suitable for use in systems designed for the ALE13B18's 277VAC maximum switching voltage.