DA3C-B1AA Equivalent & Substitute Parts

Part Overview

The DA3C-B1AA is a snap-action SPDT switch manufactured by ZF Electronics, designed for chassis mount applications with 0.1A at 125V AC rating. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing system maintenance, repairs, and new designs requiring compatible switching functionality.

Substiute Parts

DA3C-B1AA

ZF ElectronicsIn Stock: 727DA3C-B1AA Datasheet

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DB3CB1AA

ZF ElectronicsIn Stock: 1211DB3CB1AA Datasheet

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11SM608-H4

Honeywell Sensing and Productivity SolutionsIn Stock: 88711SM608-H4 Datasheet

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ABS1110509

Panasonic Electric WorksIn Stock: 916ABS1110509 Datasheet

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ABS1110513

Panasonic Electric WorksIn Stock: 1158ABS1110513 Datasheet

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AV38023

Panasonic Electric WorksIn Stock: 1068AV38023 Datasheet

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AVT38023

Panasonic Electric WorksIn Stock: 1076AVT38023 Datasheet

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MS0850500F060C1A

E-SwitchIn Stock: 828MS0850500F060C1A Datasheet

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MS0850500F080C1A

E-SwitchIn Stock: 933MS0850500F080C1A Datasheet

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MS0850500F150C1A

E-SwitchIn Stock: 914MS0850500F150C1A Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DA3C-B1AA is determined by the following critical parameters:

• Circuit configuration must be SPDT
• Switch function must be On-Momentary
• Mounting type must be Chassis Mount
• Termination style must be Quick Connect - 0.110" (2.8mm)
• Actuator type must be Round Pin Plunger
• Operating temperature range must encompass -40°C to 85°C minimum
• Voltage rating (AC) must be 125V or higher
• Current rating must be 100mA or higher

Substitute parts are grouped into two categories based on current handling capability: direct current-rated equivalents (100mA to 2A) and higher-capacity alternatives (3A to 5A) for applications requiring increased electrical capacity within the same mechanical and electrical interface specifications.

Parameter Comparison

Engineering Selection Recommendations

For direct replacement of the DA3C-B1AA in existing designs, DB3CB1AA from ZF Electronics is the primary equivalent. This part maintains identical electrical specifications (100mA at 125V AC), mechanical interface, and SPDT configuration while offering extended temperature range (-40°C to 120°C) and ROHS3 compliance status.

For new designs or applications requiring regulatory compliance, ABS1110513 from Panasonic Electric Works provides equivalent current and voltage ratings with ROHS3 compliance and extended electrical life (200,000 cycles). This part maintains full mechanical and electrical compatibility.

Higher-capacity alternatives including ABS1110509 (2A), AV38023 and AVT38023 (3A), and MS0850500 series (5A) are suitable for applications where increased current handling is required within the same mechanical envelope and voltage specification. These parts maintain chassis mount configuration and Quick Connect termination compatibility.

The 11SM608-H4 from Honeywell offers the highest voltage rating (250V AC) and widest temperature range (-55°C to 125°C) for demanding environmental applications, though it provides significantly higher current capacity (5A) than the original specification.

All recommended substitutes maintain SPDT circuit configuration, On-Momentary function, round pin plunger actuator, and 0.110" (2.8mm) Quick Connect termination required for mechanical and electrical compatibility.

Frequently Asked Questions (FAQ)

Q: Can DB3CB1AA directly replace DA3C-B1AA in existing applications?

A: Yes. DB3CB1AA maintains identical SPDT circuit configuration, 100mA current rating at 125V AC, chassis mount configuration, and Quick Connect 0.110" termination. The extended temperature range (-40°C to 120°C versus -40°C to 85°C) and ROHS3 compliance provide improved performance characteristics.

Q: What is the difference between 100mA and higher-capacity substitutes?

A: Current rating determines maximum continuous current the switch can handle. The DA3C-B1AA is rated for 100mA. Substitutes rated 2A, 3A, or 5A can handle proportionally higher currents while maintaining the same mechanical interface and voltage specification. Selection depends on actual circuit current requirements.

Q: Are all substitute parts compatible with the original Quick Connect termination?

A: Yes. All listed substitutes use Quick Connect - 0.110" (2.8mm) termination, ensuring mechanical compatibility with existing connector interfaces.

Q: Which substitute offers the best compliance profile?

A: ABS1110513 and DB3CB1AA both provide ROHS3 compliance. ABS1110513 additionally offers extended electrical life (200,000 cycles versus 100,000 cycles), making it suitable for high-cycle applications requiring modern regulatory compliance.

Q: Can I use a 5A-rated switch in place of a 100mA switch?

A: Yes, provided the application circuit current does not exceed the original 100mA specification. Higher-rated switches are backward-compatible for lower-current applications. The MS0850500 series (5A) and 11SM608-H4 (5A) are suitable for this purpose.

Q: What is the operating temperature consideration for substitute selection?

A: The DA3C-B1AA operates from -40°C to 85°C. All listed substitutes meet or exceed this range. DB3CB1AA extends to 120°C, and 11SM608-H4 extends to 125°C, providing margin for temperature-sensitive applications. AV38023 and AVT38023 operate from -25°C, which is acceptable if minimum temperature does not drop below -25°C.

Q: Are there mechanical life differences between substitutes?

A: Yes. The DA3C-B1AA does not specify mechanical life. Substitutes range from 500,000 to 15,000,000 cycles. DB3CB1AA offers 15,000,000 mechanical cycles, providing extended service life for high-cycle applications.