Equivalent & Substitute Parts for 1TL48-3 Toggle Switch

Part Overview

The 1TL48-3 is a toggle switch manufactured by Honeywell Sensing and Productivity Solutions, classified as an SPDT (Single Pole Double Throw) panel mount switch rated for 15A at 125V AC. This component features a standard round actuator with a white finish and operates across a temperature range of -65°C to 71°C. The switch employs screw terminal connections and is environment sealed for ingress protection.

The 1TL48-3 has reached obsolete product status. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing maintenance and production requirements for systems utilizing this component.

Substiute Parts

1TL48-3

Honeywell Sensing and Productivity SolutionsIn Stock: 11481TL48-3 Datasheet

Current PartRFQ

S302T

NKK SwitchesIn Stock: 1176S302T Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 1TL48-3 is determined by the following critical parameters:

Electrical Compatibility Requirements:

• Circuit configuration must be SPDT
• Switch function must be On-On
• AC current rating must be rated for minimum 15A
• AC voltage rating must be rated for minimum 125V

Mechanical Compatibility Requirements:

• Mounting type must be Panel Mount
• Termination style must be Screw Terminal
• Panel cutout dimensions must accommodate a circular opening of 12.40mm diameter or smaller
• Actuator type must be Standard Round
• Illumination status must be Non-Illuminated

Environmental and Compliance Requirements:

• Operating temperature range must encompass or exceed the application requirements
• RoHS compliance status must be current or equivalent

The S302T manufactured by NKK Switches meets all electrical and mechanical compatibility criteria for substitution with the 1TL48-3. Both components share identical circuit configuration, switch function, AC current and voltage ratings, mounting methodology, termination approach, and illumination characteristics.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: S302T (NKK Switches)

The S302T is the qualified equivalent substitute for the obsolete 1TL48-3. Both components satisfy all mandatory electrical and mechanical parameters required for direct substitution in SPDT toggle switch applications rated for 15A at 125V AC with panel mount configuration and screw terminal termination.

Compliance Considerations:

The 1TL48-3 carries RoHS Compliant certification. The S302T carries ROHS3 Compliant certification, representing current regulatory compliance standards. Both components are classified under identical HTSUS code 8536.50.9065 and ECCN EAR99, confirming regulatory equivalence.

Temperature Range Consideration:

The 1TL48-3 operates across -65°C to 71°C. The S302T operates across -10°C to 70°C. Applications requiring operation below -10°C or above 70°C must evaluate whether the S302T temperature range is acceptable for the specific use case. For applications within the -10°C to 70°C window, the S302T provides full functional equivalence.

Product Availability:

The 1TL48-3 is obsolete with limited remaining inventory (1092 pieces). The S302T is active production status with current inventory availability (1165 pieces), ensuring long-term supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can the S302T directly replace the 1TL48-3 in existing designs?

A: Yes, for applications operating within the -10°C to 70°C temperature range. Both components share identical SPDT circuit configuration, On-On switch function, 15A AC current rating, 125V AC voltage rating, panel mount configuration, screw terminal termination, and non-illuminated actuator specifications. Panel cutout dimensions are compatible (12.40mm versus 12.50mm circular openings).

Q: What is the difference in actuator length between these components?

A: The 1TL48-3 has an actuator length of 22.22mm, while the S302T has an actuator length of 17.50mm. This 4.72mm difference may affect panel aesthetics and operator feel but does not impact electrical function or mechanical mounting compatibility.

Q: Are there voltage or current rating differences?

A: The S302T provides additional DC rating capability (20A at 30V DC) not specified for the 1TL48-3. For AC applications at 15A and 125V, both components are electrically equivalent. The S302T's DC rating represents additional capability without reducing AC performance.

Q: What is the bushing thread difference?

A: The 1TL48-3 uses 15/32-32 bushing thread, while the S302T uses M12 x 1 metric bushing thread. Panel mounting hardware and installation procedures will differ accordingly. Verify panel cutout and bushing compatibility before installation.

Q: Are both components RoHS compliant?

A: Yes. The 1TL48-3 is RoHS Compliant. The S302T is ROHS3 Compliant, representing current regulatory standards. Both meet RoHS requirements for new designs and applications.

Q: What is the electrical life specification for the S302T?

A: The S302T is rated for 25,000 electrical cycles. The 1TL48-3 electrical life specification was not provided in the available documentation.

Q: Can the S302T be used in applications requiring operation below -10°C?

A: No. The S302T operating temperature range is -10°C to 70°C. Applications requiring operation below -10°C must retain the 1TL48-3 or identify alternative components with extended low-temperature ratings. The 1TL48-3 supports operation down to -65°C.