Panasonic ALZ22F18 General Purpose Relay SPST 16A 18VDC Equivalent & Substitute Parts

Part Overview

The Panasonic ALZ22F18 is a general purpose relay with SPST-NO (1 Form A) contact configuration, rated for 16A at 18VDC coil voltage. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing production and maintenance applications. The ALZ22F18 provides sealed, fully-rated switching capability suitable for industrial control and general switching applications requiring 440VAC maximum switching voltage and 7040VA load capacity.

Substiute Parts

ALZ22F18

Panasonic Electric WorksIn Stock: 867ALZ22F18 Datasheet

Current PartRFQ

ALZ52F18

Panasonic Electric WorksIn Stock: 1094ALZ52F18 Datasheet

Parametric EquivalentRFQ

ALZ52F18T

Panasonic Electric WorksIn Stock: 1171ALZ52F18T Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ALZ22F18 is based on electrical and mechanical parameter equivalence within the Panasonic ALZ series. The following parameters define valid substitutes:

• Coil voltage: 18VDC (exact match required)
• Contact form: SPST-NO (1 Form A) (exact match required)
• Contact rating: 16A (exact match required)
• Switching voltage: 440VAC maximum (exact match required)
• Load capacity: 7040VA (exact match required)
• Coil current: 22.2 mA (exact match required)
• Coil resistance: 810 Ohms (exact match required)
• Mounting type: Through Hole (exact match required)
• Termination style: PC Pin (exact match required)
• Operating temperature range: -40°C to 105°C (exact match required)
• Contact material: Silver Tin Oxide (AgSnO) (exact match required)
• Seal rating: Sealed - Fully (exact match required)
• Coil insulation: Class F (exact match required)
• Timing specifications: 15 ms operate, 5 ms release (exact match required)

The ALZ52F18 and ALZ52F18T meet all electrical and mechanical equivalence criteria and are classified as active products, making them suitable direct replacements for the obsolete ALZ22F18.

Parameter Comparison

Engineering Selection Recommendations

The ALZ52F18 and ALZ52F18T are direct electrical and mechanical equivalents to the obsolete ALZ22F18. Both substitute parts maintain identical electrical performance specifications and are manufactured by the same supplier within the same product series.

Selection between ALZ52F18 and ALZ52F18T should be based on packaging requirements and supply chain considerations. Both parts are active products with RoHS compliance certification, providing regulatory advantage over the obsolete ALZ22F18. The ALZ52F18T designation indicates tube packaging, while ALZ52F18 is also supplied in tube format. Inventory availability and procurement lead times may influence final part selection.

Frequently Asked Questions (FAQ)

Q: Can ALZ52F18 or ALZ52F18T be used as direct replacements for ALZ22F18?

A: Yes. Both ALZ52F18 and ALZ52F18T are parametric equivalents with identical electrical ratings, contact configurations, coil specifications, and timing characteristics. All three parts share the same 18VDC coil voltage, 16A contact rating, 440VAC switching voltage, and 810 Ohm coil resistance. The substitute parts are active products, whereas the ALZ22F18 is obsolete.

Q: What is the difference between ALZ52F18 and ALZ52F18T?

A: Both parts are electrically and mechanically identical. The "T" designation in ALZ52F18T indicates tube packaging format. Both are supplied in tube packaging and maintain identical electrical specifications, coil resistance, timing parameters, and contact ratings.

Q: Are the substitute parts RoHS compliant?

A: Yes. Both ALZ52F18 and ALZ52F18T are RoHS Compliant. The original ALZ22F18 does not specify RoHS status. Substitution with ALZ52F18 or ALZ52F18T provides RoHS compliance for applications requiring regulatory adherence.

Q: Will the substitute relays fit the same PCB footprint?

A: Yes. All three parts share identical mounting type (Through Hole), termination style (PC Pin), and are within the same ALZ series. PCB layout compatibility is maintained for direct substitution.

Q: Are approval certifications maintained with the substitute parts?

A: Yes. ALZ52F18 and ALZ52F18T maintain the same approval agency certifications (cURus, VDE) as the original ALZ22F18, ensuring regulatory compliance for applications requiring these certifications.

Q: What is the operating temperature range for the substitute parts?

A: The operating temperature range is -40°C to 105°C for all three parts, identical to the original ALZ22F18.