ALZ12B09 Equivalent & Substitute Parts

Part Overview

The ALZ12B09 is a general purpose relay manufactured by Panasonic Electric Works, featuring a Single Pole Double Throw (SPDT) contact configuration with a 9VDC coil. This through-hole mounted relay is designed for applications requiring 16A switching capacity at up to 440VAC. The part is currently active in production with full inventory availability. Substitute parts are identified when equivalent electrical and mechanical parameters are required due to component availability, supply chain considerations, or design flexibility within the same functional specification.

Substiute Parts

ALZ12B09

Panasonic Electric WorksIn Stock: 975ALZ12B09 Datasheet

Current PartRFQ

RZ03-1C4-D009

TE Connectivity Potter & Brumfield RelaysIn Stock: 5684RZ03-1C4-D009 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ALZ12B09 with the RZ03-1C4-D009 is based on matching the following critical electrical and mechanical parameters:

• Coil voltage: 9VDC (identical)
• Contact configuration: SPDT (1 Form C) (identical)
• Contact current rating: 16 A (identical)
• Coil current: 44.4 mA (identical)
• Must operate voltage: 6.3 VDC (identical)
• Must release voltage: 0.9 VDC (identical)
• Mounting type: Through Hole (identical)
• Termination style: PC Pin (identical)
• Operating temperature range: -40°C ~ 85°C (identical)
• Packaging: Tube (identical)

The RZ03-1C4-D009 qualifies as a direct substitute within the same functional class. Both parts are general purpose relays with non-latching coil types and equivalent performance characteristics for standard switching applications.

Parameter Comparison

Engineering Selection Recommendations

Both the ALZ12B09 and RZ03-1C4-D009 are active production parts with full regulatory compliance. The ALZ12B09 carries RoHS compliance certification, while the RZ03-1C4-D009 meets ROHS3 compliance and is REACH unaffected. Both parts are classified under the same ECCN (EAR99) and HTSUS codes, confirming their functional equivalence.

Selection between these parts should be based on:

• Supply chain availability and lead time requirements
• Specific application voltage ceiling (ALZ12B09 supports 440VAC maximum switching voltage; RZ03-1C4-D009 supports 400VAC maximum)
• Contact material preference (ALZ12B09 uses Silver Tin Oxide; RZ03-1C4-D009 uses Silver Nickel)
• Switching speed requirements (RZ03-1C4-D009 operates faster at 8 ms versus ALZ12B09 at 15 ms)
• Coil insulation class requirements (ALZ12B09 Class B; RZ03-1C4-D009 Class F)

Frequently Asked Questions (FAQ)

Q: Can the RZ03-1C4-D009 directly replace the ALZ12B09 in existing designs?

A: Yes, for applications operating at or below 400VAC. The RZ03-1C4-D009 is electrically and mechanically compatible with identical coil voltage, contact configuration, current rating, and mounting specifications. Applications requiring the full 440VAC switching capability of the ALZ12B09 should verify the RZ03-1C4-D009 is suitable for their specific voltage environment.

Q: What are the differences in switching speed between these relays?

A: The ALZ12B09 has an operate time of 15 ms and release time of 5 ms. The RZ03-1C4-D009 has an operate time of 8 ms and release time of 6 ms. Applications with strict timing requirements should account for these differences.

Q: Are both parts available in the same packaging?

A: Yes, both the ALZ12B09 and RZ03-1C4-D009 are supplied in tube packaging, maintaining identical handling and storage requirements.

Q: What is the difference in coil insulation class?

A: The ALZ12B09 uses Class B insulation, while the RZ03-1C4-D009 uses Class F insulation. Class F provides higher thermal capability. For standard applications within the specified operating temperature range (-40°C ~ 85°C), both are suitable.

Q: Do both parts meet current environmental compliance standards?

A: Yes. The ALZ12B09 is RoHS compliant. The RZ03-1C4-D009 is ROHS3 compliant and REACH unaffected. Both meet current regulatory requirements for electronic component distribution.

Q: What contact materials are used in each relay?

A: The ALZ12B09 uses Silver Tin Oxide (AgSnO) contacts. The RZ03-1C4-D009 uses Silver Nickel (AgNi) contacts. Contact material selection affects performance in specific load environments and should be verified for your application.