CF-TB-1AS3-155C Toggle Switch Equivalent & Substitute Parts

Part Overview

The CF-TB-1AS3-155C is a toggle switch manufactured by Nidec Components Corporation, classified as SPST (Single Pole Single Throw) panel mount with on-off functionality. This component is marked as obsolete, making identification of functionally equivalent alternatives essential for ongoing system maintenance and new design implementations. The switch is rated for 15A AC at 125V with a flatted actuator and screw terminal connections suitable for panel-mounted applications.

Substiute Parts

CF-TB-1AS3-155C

Nidec Components CorporationIn Stock: 907CF-TB-1AS3-155C Datasheet

Current PartRFQ

631NH

APEM Inc.In Stock: 872631NH Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CF-TB-1AS3-155C is determined by the following critical parameters:

Circuit Configuration: SPST topology must be maintained for direct functional equivalence.

Current and Voltage Ratings: The substitute must support minimum 15A AC at 125V. Higher voltage ratings (250V) are acceptable as they provide greater operational margin.

Mounting and Mechanical Interface: Panel mount configuration with screw terminal termination is required. Panel cutout diameter tolerance (12.30mm vs. 12.20mm) and bushing thread specifications (M12 x 1 vs. M12 x 0.75) must accommodate existing panel installations.

Actuator Characteristics: Flatted actuator type with comparable length (12.00mm vs. 14.60mm) ensures consistent user interface and panel aesthetics.

Compliance and Status: Active product status with ROHS3 compliance ensures long-term availability and regulatory alignment.

The 631NH from APEM Inc. meets these substitution criteria while offering enhanced voltage capability and active product status.

Parameter Comparison

Engineering Selection Recommendations

The 631NH toggle switch from APEM Inc. serves as a functional equivalent for the obsolete CF-TB-1AS3-155C. Both components maintain identical SPST circuit topology, 15A AC current rating, and screw terminal termination. The 631NH provides superior voltage capability at 250V AC, exceeding the original 125V specification and offering enhanced operational margin for applications with voltage transients or future design flexibility.

Product status differentiation is significant: the CF-TB-1AS3-155C is obsolete with no future availability, while the 631NH maintains active status with confirmed inventory. Both components achieve ROHS3 compliance, ensuring regulatory alignment for current manufacturing standards.

Mechanical interface considerations require attention: the panel cutout diameter difference (12.30mm vs. 12.20mm) and bushing thread pitch variation (M12 x 1 vs. M12 x 0.75) necessitate verification against existing panel mounting hardware. The 1.50mm actuator length increase (12.00mm to 14.60mm) may affect panel aesthetics and operator feel but does not compromise functional performance.

Electrical life specification shows reduction from 50,000 to 10,000 cycles in the substitute. For applications requiring extended cycle life, this parameter must be evaluated against actual duty cycle requirements.

Frequently Asked Questions (FAQ)

Q: Can the 631NH directly replace the CF-TB-1AS3-155C without panel modification?

A: The 631NH is mechanically compatible for panel mounting, but the bushing thread pitch differs (M12 x 0.75 vs. M12 x 1). Verify that existing panel hardware accommodates the substitute thread specification. The panel cutout diameter tolerance (12.20mm vs. 12.30mm) is within acceptable mechanical clearance for standard panel installations.

Q: What is the impact of the 250V rating on the 631NH compared to the 125V original specification?

A: The higher voltage rating provides operational margin and does not create compatibility issues in 125V applications. The component is rated for the higher voltage and will function correctly at lower voltages.

Q: Does the 1.50mm increase in actuator length affect installation?

A: The actuator length increase from 12.00mm to 14.60mm may alter the visual profile and tactile feedback at the panel surface. Verify that the extended actuator does not interfere with adjacent panel components or operator access requirements.

Q: Why is the electrical life specification lower for the 631NH?

A: The 631NH specifies 10,000 cycles versus 50,000 cycles for the original. Evaluate this against actual application duty cycles. Many industrial applications operate well within 10,000 cycle specifications over the component's service life.

Q: Are both components RoHS compliant?

A: Yes, both the CF-TB-1AS3-155C and 631NH are ROHS3 compliant, ensuring compatibility with current manufacturing and environmental regulations.

Q: What is the availability status of each component?

A: The CF-TB-1AS3-155C is obsolete with no future manufacturing. The 631NH is active with confirmed inventory availability, making it the recommended selection for new designs and ongoing system support.