ALZ51F05 General Purpose Relay SPST 16A 5V - Equivalent & Substitute Parts

Part Overview

The ALZ51F05 is a general purpose relay manufactured by Panasonic Electric Works, featuring SPST-NO (1 Form A) contact configuration with 5VDC coil voltage and 16A contact rating. This through-hole mounted relay is designed for general switching applications up to 440VAC maximum switching voltage. The part is currently active in production with RoHS compliance and sealed flux protection, making it suitable for industrial control and automation circuits.

Substitute parts become necessary when the primary part experiences supply constraints, extended lead times, or when design flexibility allows for alternative manufacturers meeting identical electrical and mechanical specifications.

Substiute Parts

ALZ51F05

Panasonic Electric WorksIn Stock: 799ALZ51F05 Datasheet

Current PartRFQ

6-1415899-4

TE Connectivity Potter & Brumfield RelaysIn Stock: 10946-1415899-4 Datasheet

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RT334005

TE Connectivity Potter & Brumfield RelaysIn Stock: 1214RT334005 Datasheet

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RZ03-1A3-D005

TE Connectivity Potter & Brumfield RelaysIn Stock: 12957RZ03-1A3-D005 Datasheet

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RZ03-1A4-D005

TE Connectivity Potter & Brumfield RelaysIn Stock: 2181RZ03-1A4-D005 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ALZ51F05 is determined by strict equivalence across the following critical parameters:

• Coil voltage: 5VDC (exact match required)
• Contact configuration: SPST-NO (1 Form A) (exact match required)
• Contact current rating: 16 A (exact match required)
• Mounting type: Through hole (exact match required)
• Termination style: PC pin (exact match required)
• Coil type: Non latching (exact match required)
• Coil insulation class: Class F (exact match required)
• Moisture sensitivity level: MSL 1 (unlimited) (exact match required)

All four substitute parts meet these mandatory criteria. Secondary parameters including switching voltage maximum, coil current, operate/release times, and contact material may vary within acceptable engineering tolerances for general purpose relay applications.

Parameter Comparison

Engineering Selection Recommendations

All four substitute parts are active production items with current regulatory compliance. Selection between ALZ51F05 and its substitutes should be based on the following factors:

Switching Voltage Consideration: The ALZ51F05 supports 440VAC maximum switching voltage, while all TE Connectivity substitutes are rated for 400VAC maximum. Applications requiring switching voltages between 400VAC and 440VAC must retain the ALZ51F05.

Operating Temperature Range: The ALZ51F05 and 6-1415899-4 support -40°C to 105°C operation. The RT334005, RZ03-1A3-D005, and RZ03-1A4-D005 are limited to -40°C to 85°C. Applications requiring operation above 85°C must use either ALZ51F05 or 6-1415899-4.

Packaging Format: The ALZ51F05 is supplied in tube packaging. The 6-1415899-4 is supplied in bulk packaging. RT334005, RZ03-1A3-D005, and RZ03-1A4-D005 are supplied in tube packaging, matching the original part format.

Regulatory Compliance: All parts meet RoHS requirements. TE Connectivity substitutes carry ROHS3 compliance with REACH unaffected status, providing additional regulatory documentation.

Inventory Availability: RZ03-1A3-D005 offers the highest inventory level at 12,915 pieces. RT334005 provides 1,110 pieces. RZ03-1A4-D005 offers 2,100 pieces. 6-1415899-4 provides 989 pieces.

Frequently Asked Questions (FAQ)

Q: Can I substitute ALZ51F05 with any of the listed parts in my application?

A: Substitution is valid only if your application operates within the electrical and thermal limits of the substitute part. If your circuit requires switching voltages above 400VAC or operating temperatures above 85°C, only the ALZ51F05 or 6-1415899-4 are suitable.

Q: What is the difference between the TE Connectivity RZ03-1A3-D005 and RZ03-1A4-D005?

A: Both parts are electrically identical with matching coil voltage, contact rating, and timing specifications. The primary difference is contact material: RZ03-1A3-D005 uses Silver Tin Oxide (AgSnO), while RZ03-1A4-D005 uses Silver Nickel (AgNi). Both materials are suitable for general purpose relay applications.

Q: Does packaging format affect electrical performance?

A: No. Tube and bulk packaging formats do not affect electrical performance or reliability. Packaging selection is based on assembly process requirements and inventory management preferences.

Q: Are the timing differences between ALZ51F05 and substitute parts significant?

A: The ALZ51F05 has a 15 ms operate time compared to 8 ms for all substitutes. Applications with timing-critical switching requirements must account for this 7 ms difference. Release time differences (5 ms versus 6 ms) are minimal.

Q: Can I use 6-1415899-4 as a direct replacement for ALZ51F05?

A: Yes, 6-1415899-4 matches all critical electrical parameters and supports the same -40°C to 105°C operating range. The only difference is bulk packaging versus tube packaging. Coil current and resistance are within acceptable tolerance ranges for general purpose relay applications.

Q: What contact material should I select for my application?

A: Both Silver Tin Oxide (AgSnO) and Silver Nickel (AgNi) contact materials are suitable for general purpose switching. Material selection does not affect substitution eligibility. Choose based on your specific load characteristics and contact life requirements.