ALZ22F48W Equivalent & Substitute Parts

Part Overview

The ALZ22F48W is a general purpose relay manufactured by Panasonic Electric Works, featuring SPST-NO (1 Form A) contact configuration with 48VDC coil voltage and 16A contact rating. This through-hole mounted relay is designed for general switching applications with sealed construction and Class F coil insulation. The product is currently obsolete, making equivalent substitute parts necessary for ongoing system maintenance and new design implementations.

Substiute Parts

ALZ22F48W

Panasonic Electric WorksIn Stock: 874ALZ22F48W Datasheet

Current PartRFQ

1-1415898-1

TE Connectivity Potter & Brumfield RelaysIn Stock: 8321-1415898-1 Datasheet

SimilarRFQ

1-1415899-8

TE Connectivity Potter & Brumfield RelaysIn Stock: 9361-1415899-8 Datasheet

SimilarRFQ

5-1415899-1

TE Connectivity Potter & Brumfield RelaysIn Stock: 9495-1415899-1 Datasheet

SimilarRFQ

RT33K048

TE Connectivity Potter & Brumfield RelaysIn Stock: 1125RT33K048 Datasheet

SimilarRFQ

RT33L048

TE Connectivity Potter & Brumfield RelaysIn Stock: 1621RT33L048 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ALZ22F48W are qualified based on the following critical parameters that must match or exceed the original specification:

Mandatory Matching Parameters:

• Coil Voltage: 48VDC
• Contact Form: SPST-NO (1 Form A)
• Contact Rating: 16 A minimum
• Mounting Type: Through Hole
• Termination Style: PC Pin
• Coil Type: Non Latching
• Coil Insulation: Class F

Allowable Variations:

• Switching Voltage: Substitute parts rated at 400VAC are acceptable (original rated 440VAC maximum)
• Operating Temperature Range: Substitute parts with -40°C ~ 85°C are acceptable (original rated -40°C ~ 105°C)
• Seal Rating: Variations in seal type are acceptable provided sealed construction is maintained
• Contact Material: Silver Tin Oxide (AgSnO), Silver Nickel (AgNi), or Tungsten (W) compositions are acceptable
• Coil Resistance: Tolerance range 5.52 kOhms to 5.73 kOhms is acceptable
• Operate/Release Time: Minor variations within 8-15 ms operate and 5-6 ms release are acceptable

All five substitute parts meet these criteria and are manufactured by TE Connectivity Potter & Brumfield Relays, with active product status and RoHS3 compliance.

Parameter Comparison

Engineering Selection Recommendations

All five substitute parts are functionally equivalent to the ALZ22F48W for applications within the specified electrical and mechanical parameters. Selection among substitutes should be based on the following criteria:

For applications requiring maximum temperature range: The ALZ22F48W operates to 105°C. All substitute parts are rated to 85°C maximum. Applications requiring operation above 85°C require design review to confirm acceptability of the reduced temperature rating.

For applications with switching voltage requirements above 400VAC: The ALZ22F48W is rated to 440VAC maximum. All substitute parts are rated to 400VAC maximum. Applications requiring switching voltages between 400VAC and 440VAC require design review.

For RoHS compliance: All substitute parts carry ROHS3 compliance certification. The original ALZ22F48W does not specify RoHS status. For new designs or systems requiring RoHS compliance, any of the five substitute parts are suitable.

For product availability and supply chain: All substitute parts carry active product status with current inventory. The 1-1415899-8 and 5-1415899-1 are available in bulk packaging with highest inventory levels (861 and 892 units respectively). The RT33L048 offers the highest total inventory (1601 units) in tube packaging.

For seal rating considerations: The 1-1415898-1, RT33K048, and RT33L048 specify sealed construction with flux protection. The 1-1415899-8 and 5-1415899-1 do not specify seal rating. For applications requiring sealed construction, select from 1-1415898-1, RT33K048, or RT33L048.

Frequently Asked Questions (FAQ)

Q: Can the ALZ22F48W be directly replaced with any of these substitute parts?

A: Yes, all five substitute parts are direct replacements for the ALZ22F48W in applications where the operating temperature does not exceed 85°C and switching voltage does not exceed 400VAC. Verify your application requirements against the parameter comparison table before selection.

Q: What is the difference between the substitute parts?

A: All substitute parts share identical electrical specifications (48VDC coil, 16A contact rating, SPST-NO configuration). Differences exist in contact material composition (Silver Tin Oxide vs. Silver Nickel), seal rating designation, packaging format (tube vs. bulk), and minor timing variations (8-10 ms operate time vs. 15 ms for the original). These differences do not affect functional equivalence for standard general purpose switching applications.

Q: Which substitute part should I select for new designs?

A: For new designs, select based on packaging preference and seal rating requirement. The RT33L048 offers the highest inventory availability (1601 units) and sealed flux protection construction. The 1-1415898-1 provides sealed flux protection in tube packaging with lower coil current (8.7 mA). The 5-1415899-1 and 1-1415899-8 offer bulk packaging options with equivalent performance.

Q: Are there any compatibility issues with PCB mounting?

A: No. All substitute parts use identical through-hole PC pin termination style and are compatible with existing PCB layouts designed for the ALZ22F48W. Footprint and pin spacing are equivalent across all parts.

Q: What is the impact of the reduced maximum switching voltage (400VAC vs. 440VAC)?

A: The substitute parts are rated to 400VAC maximum switching voltage compared to the original 440VAC rating. For applications switching voltages at or below 400VAC, there is no impact. For applications requiring switching between 400VAC and 440VAC, design review is required to confirm acceptability of the reduced rating or to implement circuit-level voltage limiting measures.

Q: What is the impact of the reduced operating temperature range (-40°C to 85°C vs. -40°C to 105°C)?

A: The substitute parts are rated to 85°C maximum ambient temperature compared to the original 105°C rating. For applications operating at or below 85°C, there is no impact. For applications requiring operation above 85°C, design review is required to confirm acceptability of the reduced rating or to implement thermal management measures.

Q: Do all substitute parts meet RoHS compliance requirements?

A: Yes. All five substitute parts carry ROHS3 compliance certification. The original ALZ22F48W does not specify RoHS status. For systems requiring RoHS compliance, any of the five substitute parts are suitable.