AV34043-A Equivalent & Substitute Parts

Part Overview

The Panasonic Electric Works AV34043-A is a snap action SPDT switch rated for 3A at 125V AC and 30V DC. This through-hole mounted component features a round pin plunger actuator with PC pin termination and is RoHS compliant. The part is currently active in production with 745 units in stock.

Equivalent and substitute parts are necessary when the AV34043-A becomes unavailable, when design requirements demand higher current or voltage ratings, or when alternative manufacturers' components offer improved mechanical or electrical performance characteristics within compatible parameter ranges.

Substiute Parts

AV34043-A

Panasonic Electric WorksIn Stock: 769AV34043-A Datasheet

Current PartRFQ

11SM8423-H2

Honeywell Sensing and Productivity SolutionsIn Stock: 71811SM8423-H2 Datasheet

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1SM33-H2

Honeywell Sensing and Productivity SolutionsIn Stock: 9661SM33-H2 Datasheet

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41SM25-H2

Honeywell Sensing and Productivity SolutionsIn Stock: 111541SM25-H2 Datasheet

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DB1C-C1AA

ZF ElectronicsIn Stock: 1074DB1C-C1AA Datasheet

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DB2CC1AA

ZF ElectronicsIn Stock: 6628DB2CC1AA Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AV34043-A is determined by the following critical parameters:

Mandatory Compatibility Parameters:

• Circuit configuration: SPDT
• Switch function: On-Mom
• Actuator type: Round (Pin Plunger)
• Mounting type: Through Hole
• Termination style: PC Pin
• Operating position: 0.330" (8.4mm)

Electrical Performance Parameters (must meet or exceed):

• Current rating: minimum 3A
• Voltage rating - AC: minimum 125V
• Voltage rating - DC: minimum 30V

Environmental & Compliance Parameters:

• Operating temperature range: must encompass or exceed -25°C to 85°C
• RoHS compliance status

Four substitute parts meet these criteria across different performance tiers, enabling selection based on specific application requirements and availability constraints.

Parameter Comparison

Engineering Selection Recommendations

For Active Production Applications: The 41SM25-H2 (Honeywell) and DB2CC1AA (ZF) are preferred substitutes as both maintain active product status. The 41SM25-H2 provides higher AC current capacity (11A) with extended temperature range (-55°C to 125°C) and superior mechanical life (80,000 cycles). The DB2CC1AA offers 10A AC rating with ROHS3 compliance and extended mechanical life (10,000,000 cycles).

For DC-Dominant Applications: The DB1C-C1AA (ZF) supports higher DC voltage (48V) compared to the AV34043-A (30V DC) and provides extended mechanical life (15,000,000 cycles). However, DC current is limited to 1A, making this suitable only for low-power DC switching applications.

For Obsolete Part Replacement: The 11SM8423-H2 and 1SM33-H2 (both Honeywell) are obsolete but remain in inventory. These should be considered only when new production alternatives are unavailable and existing stock is accessible. Both support 5A current and 250V AC rating with extended temperature range.

Compliance Considerations: All substitute parts maintain RoHS compliance. ZF Electronics parts (DB1C-C1AA, DB2CC1AA) carry ROHS3 certification, providing enhanced environmental compliance for applications requiring stricter standards.

Frequently Asked Questions (FAQ)

Q: Can the 41SM25-H2 directly replace the AV34043-A in all applications?

A: The 41SM25-H2 is mechanically and electrically compatible as a direct substitute. It exceeds the AV34043-A in current capacity (11A AC vs. 3A), voltage rating (250V AC vs. 125V AC), and mechanical life (80,000 cycles vs. 500,000 cycles). Applications operating at or below the AV34043-A's rated parameters will function identically. Higher-rated components do not degrade performance in lower-demand circuits.

Q: What is the difference between the Honeywell and ZF substitute options?

A: Honeywell parts (11SM8423-H2, 1SM33-H2, 41SM25-H2) emphasize higher voltage ratings (250V AC) and extended temperature ranges (-55°C to 125°C). ZF Electronics parts (DB1C-C1AA, DB2CC1AA) maintain 125V AC rating matching the original but offer superior mechanical life and IP50 dust protection. Selection depends on whether voltage headroom or mechanical durability is prioritized.

Q: Why do the ZF parts show lower electrical life (6,000 cycles) compared to the AV34043-A (50,000 cycles)?

A: Electrical life ratings reflect different testing standards and application profiles between manufacturers. The ZF parts compensate with significantly higher mechanical life (10,000,000 to 15,000,000 cycles), indicating superior mechanical durability. Selection should align with the specific duty cycle: frequent electrical switching favors higher electrical life ratings, while mechanical cycling favors higher mechanical life ratings.

Q: Can the DB1C-C1AA be used in DC applications requiring 48V?

A: The DB1C-C1AA supports 48V DC rating, exceeding the AV34043-A's 30V DC capability. However, DC current is limited to 1A, making this part suitable only for low-power DC switching. Applications requiring 3A DC current should use alternatives supporting higher DC current ratings or remain with the original AV34043-A.

Q: Are the obsolete Honeywell parts (11SM8423-H2, 1SM33-H2) acceptable for new designs?

A: Obsolete parts should not be specified for new production designs. These parts are suitable only for legacy system maintenance or repair when existing inventory is available and new production alternatives are unavailable. For new applications, select from active status parts: 41SM25-H2 (Honeywell) or DB2CC1AA (ZF).

Q: What packaging considerations apply to these substitutes?

A: The AV34043-A is supplied in tube packaging. Substitute parts are available in bulk or tube packaging depending on the specific part number. Verify packaging format during procurement to ensure compatibility with assembly processes and inventory management systems.