A13KB-AH Toggle Switch SPDT Equivalent & Substitute Parts

Part Overview

The A13KB-AH is an NKK Switches toggle switch with SPDT (Single Pole Double Throw) circuit configuration, rated for 0.4VA at 28V AC/DC. This through-hole mounted component features a snap-on paddle actuator and is designed for On-Off-On switching applications. The part is Active status with 744 units in stock inventory. Substitute parts are identified when equivalent electrical and mechanical specifications align within the allowed parameter tolerances for this product category, enabling direct replacement in compatible applications.

Substiute Parts

A13KB-AH

NKK SwitchesIn Stock: 755A13KB-AH Datasheet

Current PartRFQ

T103MH9V3BE

C&KIn Stock: 1040T103MH9V3BE Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the A13KB-AH is determined by the following critical parameters:

Electrical Compatibility Requirements:

• Circuit configuration must be SPDT
• Switch function must be On-Off-On
• Current rating must support 0.4VA minimum
• Voltage rating must meet or exceed 28V AC/DC operation

Mechanical Compatibility Requirements:

• Mounting type must be Through Hole
• Termination style must be PC Pin
• Operating temperature range must encompass -30°C to 85°C

Regulatory & Compliance Requirements:

• RoHS3 compliance required
• MSL rating of 1 (Unlimited) acceptable

The substitute part T103MH9V3BE from C&K meets the core electrical circuit requirements (SPDT, On-Off-On, 0.4VA current rating) and mechanical mounting specifications (Through Hole, PC Pin termination). However, the voltage rating differential and actuator design variations represent functional differences that must be evaluated within specific application contexts.

Parameter Comparison

Engineering Selection Recommendations

Both parts maintain Active product status and ROHS3 compliance. The A13KB-AH operates at 28V with a 50,000-cycle electrical life rating. The T103MH9V3BE operates at 20V with a 30,000-cycle electrical life rating. Selection between these parts depends on application voltage requirements and cycle life expectations. The A13KB-AH is suitable for 28V systems requiring extended operational life. The T103MH9V3BE is suitable for 20V systems where the lower cycle rating is acceptable. Actuator geometry differences (9.40mm paddle versus 5.33mm round) may affect panel mounting and user interface considerations.

Frequently Asked Questions (FAQ)

Q: Can T103MH9V3BE replace A13KB-AH in a 28V circuit? A: No. The T103MH9V3BE is rated for 20V maximum. Using it in a 28V circuit exceeds its voltage specification and creates a reliability risk.

Q: Are both parts suitable for the same panel cutout? A: No. The A13KB-AH features a snap-on paddle actuator (9.40mm length) while the T103MH9V3BE has a standard round actuator (5.33mm length). Panel mounting geometry and cutout dimensions differ between these designs.

Q: What is the electrical life difference between these parts? A: The A13KB-AH is rated for 50,000 cycles while the T103MH9V3BE is rated for 30,000 cycles. Applications requiring extended operational life should specify the A13KB-AH.

Q: Are both parts RoHS3 compliant? A: Yes. Both the A13KB-AH and T103MH9V3BE meet ROHS3 compliance requirements.

Q: Can these parts be used interchangeably in 20V applications? A: The A13KB-AH can operate in 20V applications as its 28V rating exceeds this requirement. The T103MH9V3BE is designed for 20V operation. Mechanical compatibility (actuator type and panel mounting) must be verified independently.