ALZN1B12 General Purpose Relay SPDT 12VDC 16A Equivalent & Substitute Parts

Part Overview

The ALZN1B12 is a general purpose relay manufactured by Panasonic Electric Works, featuring a Single Pole Double Throw (SPDT) contact configuration with a 12VDC coil 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 part is currently active in production with 1019 units in stock. Equivalent and substitute parts are identified when identical electrical and mechanical parameters are maintained across the SPDT relay category, ensuring direct functional replacement without circuit redesign.

Substiute Parts

ALZN1B12

Panasonic Electric WorksIn Stock: 1122ALZN1B12 Datasheet

Current PartRFQ

ALZ11B12W

Panasonic Electric WorksIn Stock: 1304ALZ11B12W Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ALZN1B12 are identified based on strict electrical and mechanical parameter matching within the general purpose SPDT relay category. The following parameters determine substitution eligibility:

Primary Matching Criteria:

• Coil voltage: 12VDC
• Contact configuration: SPDT (1 Form C)
• Contact current rating: 16 A
• Maximum switching voltage: 440VAC
• Mounting type: Through Hole
• Termination style: PC Pin
• Operating temperature range: -40°C ~ 85°C

Secondary Matching Criteria:

• Coil current: 33.3 mA
• Coil resistance: 360 Ohms
• Contact material: Silver Tin Oxide (AgSnO)
• Seal rating: Sealed - Flux Protection
• Approval agencies: cURus, VDE

Parts meeting all primary criteria and secondary criteria are classified as parametric equivalents and direct substitutes.

Parameter Comparison

Engineering Selection Recommendations

The ALZ11B12W is a direct parametric equivalent to the ALZN1B12. Both parts are manufactured by Panasonic Electric Works and maintain identical electrical and mechanical specifications across all critical parameters including coil voltage, contact configuration, current rating, switching voltage, and operating temperature range.

Selection Basis:

The ALZ11B12W offers additional compliance documentation with ROHS3 certification and REACH unaffected status, providing enhanced environmental compliance for applications subject to regulatory requirements. Both parts carry cURus and VDE approvals, confirming suitability for industrial and safety-critical applications.

Inventory availability differs between the two parts, with ALZ11B12W currently stocked at 1278 units compared to 1019 units for ALZN1B12. Selection between these equivalent parts should be based on application-specific compliance requirements and supply chain availability.

Frequently Asked Questions (FAQ)

Q: Can ALZ11B12W be used as a direct replacement for ALZN1B12 in existing circuits?

A: Yes. The ALZ11B12W is a parametric equivalent with identical electrical and mechanical specifications. All critical parameters including coil voltage (12VDC), contact configuration (SPDT), current rating (16A), switching voltage (440VAC), and operating temperature range (-40°C ~ 85°C) are matched. Direct substitution is supported without circuit modification.

Q: What are the key differences between ALZN1B12 and ALZ11B12W?

A: The parts are electrically and mechanically identical. The primary differences are series designation (ALZN versus ALZ), compliance documentation (ALZ11B12W includes ROHS3 and REACH status), and current inventory levels. Both parts are manufactured by Panasonic Electric Works and carry identical approvals.

Q: Are both parts suitable for the same temperature range applications?

A: Yes. Both ALZN1B12 and ALZ11B12W operate across the identical temperature range of -40°C to 85°C, with matching operate and release times of 15 ms and 5 ms respectively.

Q: What is the significance of the ROHS3 compliance on ALZ11B12W?

A: ROHS3 compliance indicates the part meets Restriction of Hazardous Substances Directive requirements, restricting the use of specific hazardous materials. This certification is relevant for applications subject to European environmental regulations or customer-specified compliance requirements.

Q: Do both parts have the same approval certifications?

A: Yes. Both ALZN1B12 and ALZ11B12W carry cURus and VDE approvals, confirming compliance with North American and European safety standards for general purpose relays.

Q: What is the coil resistance and current specification for these parts?

A: Both parts feature a coil resistance of 360 Ohms with a coil current of 33.3 mA at 12VDC. The must-operate voltage is 8.4 VDC and must-release voltage is 1.2 VDC.

Q: Are these relays suitable for sealed or flux-protected applications?

A: Yes. Both parts feature sealed construction with flux protection, making them suitable for applications requiring protection against environmental contamination and flux residue.