Equivalent & Substitute Parts for Honeywell 311SX147-T2

Part Overview

The Honeywell 311SX147-T2 is a snap-action SPDT switch rated for 5A at 125V AC and 28V DC, featuring a lever with roller actuator and chassis mount configuration with solder turret termination. This component is classified as obsolete, making identification of equivalent substitute parts essential for ongoing system maintenance and new design implementations. The switch is designed for On-Momentary operation with mechanical life rated at 10,000,000 cycles and operates across the temperature range of -55°C to 125°C.

Substiute Parts

311SX147-T2

Honeywell Sensing and Productivity SolutionsIn Stock: 1190311SX147-T2 Datasheet

Current PartRFQ

311SX4-T

Honeywell Sensing and Productivity SolutionsIn Stock: 20166311SX4-T Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete 311SX147-T2 is based on strict equivalence of electrical and mechanical parameters. The substitute part 311SX4-T maintains identical specifications across all critical functional parameters: SPDT circuit configuration, On-Momentary switch function, 5A current rating at both 125V AC and 28V DC, lever actuator with chassis mount configuration, and solder turret termination. Mechanical characteristics including operating force (60gf), release force (11gf), operating position (0.557"), pretravel (0.050"), differential travel (0.015"), and overtravel (0.010") are identical. The operating temperature range (-55°C to 125°C) and mechanical life rating (10,000,000 cycles) are preserved. Both parts are RoHS Compliant with MSL 1 rating. The primary distinction is product status: 311SX147-T2 is obsolete while 311SX4-T is active, and actuator specification variance (roller versus simulated roller) and packaging format (loose versus tray).

Parameter Comparison

Engineering Selection Recommendations

The 311SX4-T is the direct substitute for the obsolete 311SX147-T2. Selection of the substitute part is supported by the following engineering factors:

Product Status: The 311SX147-T2 is classified as obsolete, while the 311SX4-T maintains active product status with current manufacturing support and availability (20,099 pieces in stock versus 1,161 pieces for the obsolete part).

Electrical Equivalence: Both parts maintain identical electrical specifications including SPDT circuit configuration, 5A current rating at 125V AC and 28V DC, and On-Momentary switch function.

Mechanical Equivalence: Operating force, release force, travel distances, and mechanical life ratings are identical across both parts.

Compliance Alignment: Both parts are RoHS Compliant with identical ECCN (EAR99) and HTSUS (8536.50.7000) classifications. The substitute part includes REACH Affected status documentation.

Actuator Specification: The actuator type variance (roller versus simulated roller) does not affect functional performance within the specified mechanical parameters.

Packaging Consideration: The substitute part is supplied in tray packaging, which may require adjustment to assembly processes designed for loose component handling.

Frequently Asked Questions (FAQ)

Q: Can the 311SX4-T directly replace the 311SX147-T2 in existing designs?

A: Yes. The 311SX4-T maintains identical electrical and mechanical specifications across all critical parameters including circuit configuration, current and voltage ratings, actuator force characteristics, travel distances, and operating temperature range. The substitute part is functionally equivalent for direct replacement applications.

Q: What is the difference between a roller actuator and a simulated roller actuator?

A: Both actuator types operate within the identical mechanical specifications provided for this product category. The operating force (60gf), release force (11gf), and all travel distance parameters are equivalent. The functional performance within the specified parameters is identical.

Q: Why is the 311SX147-T2 listed as obsolete?

A: The 311SX147-T2 has been discontinued by the manufacturer. The 311SX4-T is the active equivalent part maintained in current production with ongoing availability and support.

Q: Does the tray packaging of the 311SX4-T affect compatibility?

A: Tray packaging is a supply format consideration only and does not affect electrical or mechanical compatibility. Assembly processes may require adjustment to accommodate tray-packaged components rather than loose components.

Q: Are both parts RoHS Compliant?

A: Yes. Both the 311SX147-T2 and 311SX4-T are RoHS Compliant with MSL 1 (Unlimited) moisture sensitivity level rating.

Q: What is the inventory status for each part?

A: The 311SX147-T2 (obsolete) has 1,161 pieces in stock. The 311SX4-T (active substitute) has 20,099 pieces in stock, providing greater availability for new orders and ongoing supply.

Q: Are there any export control differences between the two parts?

A: Both parts share identical ECCN (EAR99) and HTSUS (8536.50.7000) classifications. The 311SX4-T includes REACH Affected status documentation.