ALZ22B09 General Purpose Relay SPST 16A 9VDC Equivalent & Substitute Parts

Part Overview

The ALZ22B09 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 9VDC coil. This through-hole mounted relay is rated for 16A switching capacity at 440VAC maximum and is designed for non-latching applications requiring sealed, fully enclosed construction.

The ALZ22B09 is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support long-term product support for applications currently utilizing this relay.

Substiute Parts

ALZ22B09

Panasonic Electric WorksIn Stock: 990ALZ22B09 Datasheet

Current PartRFQ

ALZ52B09

Panasonic Electric WorksIn Stock: 1098ALZ52B09 Datasheet

Parametric EquivalentRFQ

ALZ52B09T

Panasonic Electric WorksIn Stock: 1034ALZ52B09T Datasheet

Parametric EquivalentRFQ

1-1415540-6

TE Connectivity Potter & Brumfield RelaysIn Stock: 12271-1415540-6 Datasheet

SimilarRFQ

RZ03-1A4-D009

TE Connectivity Potter & Brumfield RelaysIn Stock: 2193RZ03-1A4-D009 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ALZ22B09 are classified into two categories based on parametric alignment:

Parametric Equivalents (ALZ52B09, ALZ52B09T): These parts maintain identical electrical and mechanical specifications across all critical parameters including coil voltage, contact form, current rating, switching voltage, mounting type, termination style, coil type, seal rating, operating temperature range, and coil resistance. The primary distinction is product status (active versus obsolete) and packaging format (tube). These parts provide direct functional replacement with no design modifications required.

Similar Substitutes (1-1415540-6, RZ03-1A4-D009): These parts share the core functional parameters (9VDC coil, SPST-NO contact form, 16A rating, through-hole mounting, PC pin termination, non-latching operation) but exhibit variations in secondary parameters including switching voltage maximum (400VAC versus 440VAC), coil insulation class (Class F versus Class B), contact material (Silver Nickel versus Silver Tin Oxide), operate/release timing, and operating temperature upper limit. These parts require engineering evaluation for application-specific compatibility.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Parametric Equivalents):

ALZ52B09 and ALZ52B09T are recommended as primary substitutes for the obsolete ALZ22B09. Both parts maintain active product status with Panasonic Electric Works, ensuring long-term availability and technical support. These parts are identical in all electrical and mechanical specifications, requiring no circuit or PCB modifications. Both are RoHS compliant and carry cURus and VDE approvals matching the original part. The distinction between ALZ52B09 and ALZ52B09T is packaging format; selection depends on procurement and inventory management requirements.

For Application-Specific Evaluation (Similar Substitutes):

RZ03-1A4-D009 (TE Connectivity Potter & Brumfield Relays) is an active product suitable for applications where the reduced switching voltage maximum (400VAC versus 440VAC) and alternative contact material (Silver Nickel) are acceptable. This part offers extended operating temperature range (-40°C to 105°C) and faster switching response (8ms operate, 6ms release versus 15ms/5ms). REACH unaffected status aligns with the original part. Engineering verification is required to confirm compatibility with specific load conditions and switching voltage requirements.

1-1415540-6 is classified as obsolete and is not recommended for new designs or long-term supply chain planning.

Frequently Asked Questions (FAQ)

Q: Can ALZ52B09 or ALZ52B09T be used as direct replacements for ALZ22B09 without circuit modifications?

A: Yes. ALZ52B09 and ALZ52B09T are parametric equivalents with identical coil voltage, contact form, current rating, switching voltage, mounting type, termination style, and operating characteristics. No circuit or PCB modifications are required. The parts are pin-compatible and functionally interchangeable.

Q: What is the difference between ALZ52B09 and ALZ52B09T?

A: Both parts are electrically and mechanically identical. The distinction is packaging format: ALZ52B09 is supplied in tube packaging, while ALZ52B09T is also supplied in tube packaging. Selection depends on procurement specifications and inventory management practices.

Q: Can RZ03-1A4-D009 replace ALZ22B09 in all applications?

A: RZ03-1A4-D009 shares core functional parameters but exhibits differences in switching voltage maximum (400VAC versus 440VAC), contact material (Silver Nickel versus Silver Tin Oxide), and switching timing (8ms/6ms versus 15ms/5ms). Applications operating at switching voltages above 400VAC or requiring specific contact material properties require engineering evaluation. The part is suitable for applications within 400VAC switching limits and where faster switching response is acceptable or beneficial.

Q: What compliance and certification status should be considered when selecting a substitute?

A: ALZ52B09 and ALZ52B09T maintain cURus and VDE approvals consistent with the original ALZ22B09 and are RoHS compliant. RZ03-1A4-D009 carries ROHS3 compliance and REACH unaffected status. For applications subject to specific regulatory requirements, compliance documentation should be verified against application specifications.

Q: Is 1-1415540-6 a viable substitute option?

A: 1-1415540-6 is classified as obsolete and is not recommended for new designs or applications requiring long-term supply chain continuity. Existing inventory may be available, but future availability cannot be assured.

Q: How do coil resistance variations affect circuit design?

A: ALZ22B09, ALZ52B09, ALZ52B09T, and 1-1415540-6 all specify 203 Ohms coil resistance. RZ03-1A4-D009 specifies 200 Ohms, a 1.5% variation. For applications with tight coil current tolerance requirements, this minor resistance difference may require verification of drive circuit performance.