ALZ22B05 General Purpose Relay SPST 16A 5V Equivalent & Substitute Parts

Part Overview

The ALZ22B05 is a general purpose relay manufactured by Panasonic Electric Works, featuring SPST-NO (1 Form A) contact configuration with 5VDC coil voltage and 16A contact rating. This through-hole mounted relay is designed for general switching applications with a maximum switching voltage of 440VAC and load capacity of 7040VA.

The ALZ22B05 is currently listed as obsolete. Identifying equivalent and 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

ALZ22B05

Panasonic Electric WorksIn Stock: 1055ALZ22B05 Datasheet

Current PartRFQ

ALZ52B05T

Panasonic Electric WorksIn Stock: 1220ALZ52B05T Datasheet

Parametric EquivalentRFQ

6-1415899-4

TE Connectivity Potter & Brumfield RelaysIn Stock: 10946-1415899-4 Datasheet

SimilarRFQ

RT334005

TE Connectivity Potter & Brumfield RelaysIn Stock: 1214RT334005 Datasheet

SimilarRFQ

RZ03-1A3-D005

TE Connectivity Potter & Brumfield RelaysIn Stock: 12957RZ03-1A3-D005 Datasheet

SimilarRFQ

RZ03-1A4-D005

TE Connectivity Potter & Brumfield RelaysIn Stock: 2181RZ03-1A4-D005 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ALZ22B05 are identified based on strict electrical and mechanical parameter matching within acceptable tolerances for general purpose relay applications. The following critical parameters determine substitution eligibility:

Primary Matching Criteria:

• Coil voltage: 5VDC (exact match required)
• Contact form: SPST-NO (1 Form A) (exact match required)
• Contact rating: 16 A (exact match required)
• Mounting type: Through Hole (exact match required)
• Termination style: PC Pin (exact match required)
• Coil type: Non Latching (exact match required)

Secondary Compatibility Parameters:

• Must operate voltage: 4.6 VDC (exact match required)
• Must release voltage: 0.5 VDC (exact match required)
• Operating temperature range: -40°C minimum and 85°C maximum (substitute must meet or exceed)
• Coil resistance: 60-63 Ohms (acceptable range for 5VDC coil)
• Coil current: 80-84 mA (acceptable range for 5VDC coil)

All identified substitutes meet these criteria and are suitable for direct replacement in applications designed for the ALZ22B05.

Parameter Comparison

Engineering Selection Recommendations

ALZ52B05T (Panasonic Electric Works): This is the direct parametric equivalent from the same manufacturer. It maintains identical electrical specifications including coil voltage, contact rating, and operating characteristics. The ALZ52B05T is currently in active production status, providing supply continuity. It is RoHS Compliant and shares the same series designation (ALZ) as the obsolete ALZ22B05. This part is the preferred choice for direct replacement where Panasonic sourcing is required.

6-1415899-4 (TE Connectivity Potter & Brumfield Relays): This substitute meets all critical electrical parameters for 5VDC SPST-NO 16A operation. It features an extended operating temperature range of -40°C to 105°C, exceeding the ALZ22B05 specification. The part is ROHS3 Compliant and currently in active production. Coil current is 83.3 mA, within acceptable tolerance for 5VDC relay operation. Note that switching voltage is rated at 400VAC maximum, compared to 440VAC for the ALZ22B05.

RT334005 (TE Connectivity Potter & Brumfield Relays): This substitute provides equivalent electrical performance with SPST-NO 16A contact configuration at 5VDC coil voltage. It is packaged in tube format and includes sealed flux protection. Operating temperature range matches the ALZ22B05 at -40°C to 85°C. The part is ROHS3 Compliant and in active production. Switching voltage is 400VAC maximum.

RZ03-1A3-D005 (TE Connectivity Potter & Brumfield Relays): This substitute meets all critical electrical parameters and features contact material matching the ALZ22B05 (Silver Tin Oxide). It is ROHS3 Compliant and in active production with the highest inventory availability (12,915 pcs). Operating temperature range is -40°C to 85°C. Switching voltage is 400VAC maximum.

RZ03-1A4-D005 (TE Connectivity Potter & Brumfield Relays): This substitute provides equivalent electrical performance with SPST-NO 16A configuration at 5VDC. It is ROHS3 Compliant and in active production. Operating temperature range is -40°C to 85°C. Switching voltage is 400VAC maximum. Contact material is Silver Nickel (AgNi).

All identified substitutes are suitable for applications where the ALZ22B05 was originally specified, provided that the maximum switching voltage requirement does not exceed 400VAC for TE Connectivity parts.

Frequently Asked Questions (FAQ)

Q: Can I use any of these substitute parts as a direct replacement for the ALZ22B05?

A: Yes. All identified substitutes meet the critical electrical parameters: 5VDC coil voltage, SPST-NO contact form, 16A contact rating, through-hole mounting, and PC pin termination. They satisfy the must-operate and must-release voltage requirements and are compatible with the same circuit designs.

Q: What is the difference between the ALZ52B05T and the TE Connectivity substitutes?

A: The ALZ52B05T is manufactured by Panasonic Electric Works and maintains identical specifications to the ALZ22B05, including 440VAC maximum switching voltage and Class B coil insulation. TE Connectivity substitutes (6-1415899-4, RT334005, RZ03-1A3-D005, RZ03-1A4-D005) are rated for 400VAC maximum switching voltage and feature Class F coil insulation. Both are functionally equivalent for standard 5VDC relay applications.

Q: Does the difference in switching voltage (440VAC vs 400VAC) affect compatibility?

A: The switching voltage rating indicates the maximum voltage the relay contacts can safely switch. If your application requires switching above 400VAC, only the ALZ22B05 or ALZ52B05T are suitable. For applications switching 400VAC or below, all substitutes are compatible.

Q: What is the significance of the different contact materials (Silver Tin Oxide vs Silver Nickel)?

A: Both Silver Tin Oxide (AgSnO) and Silver Nickel (AgNi) are standard contact materials for general purpose relays. The choice between them depends on specific application requirements such as contact resistance, arc resistance, and load characteristics. Both materials are suitable for the 16A 5VDC switching application.

Q: Are there packaging differences I should consider?

A: Yes. The ALZ22B05 is packaged in standard format. ALZ52B05T is supplied in tube packaging. TE Connectivity parts are supplied in tube or bulk packaging. Packaging affects handling, storage, and component placement in automated assembly. Verify packaging compatibility with your procurement and assembly processes.

Q: Which substitute has the best availability?

A: RZ03-1A3-D005 has the highest inventory availability at 12,915 pcs. ALZ52B05T has 1,132 pcs available. All substitutes are currently in active production, ensuring long-term supply continuity.

Q: Do all substitutes meet RoHS compliance requirements?

A: ALZ52B05T is RoHS Compliant. All TE Connectivity substitutes (6-1415899-4, RT334005, RZ03-1A3-D005, RZ03-1A4-D005) are ROHS3 Compliant. If RoHS compliance is required for your application, all identified substitutes meet current standards.

Q: What are the timing differences between the ALZ22B05 and substitutes?

A: The ALZ22B05 has an operate time of 15 ms and release time of 5 ms. TE Connectivity substitutes have faster operate times of 8 ms and release times of 6 ms. If your application has strict timing requirements, these differences should be evaluated against circuit design specifications.