Equivalent & Substitute Parts for PTS645TL43

Part Overview

The PTS645TL43 is a tactile switch manufactured by C&K, classified as SPST-NO (Single Pole Single Throw - Normally Open) with a contact rating of 0.05A at 12VDC. This through-hole mounted component features a top-actuated design with a 6.00mm x 6.00mm outline and 4.30mm actuator height. The product is currently obsolete, making identification of equivalent and substitute parts essential for ongoing design support and component procurement.

Substiute Parts

PTS645TL43

C&KIn Stock: 782PTS645TL43 Datasheet

Current PartRFQ

PTS645TL43-2 LFS

C&KIn Stock: 2739PTS645TL43-2 LFS Datasheet

DirectRFQ

TLE1105F160Q

E-SwitchIn Stock: 3942TLE1105F160Q Datasheet

DirectRFQ

TLE1105F100Q

E-SwitchIn Stock: 775TLE1105F100Q Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PTS645TL43 is determined by strict alignment of the following parameters:

Critical Parameters (Must Match):

• Circuit configuration: SPST-NO
• Contact rating: 0.05A @ 12VDC
• Mounting type: Through Hole
• Actuator orientation: Top Actuated
• Outline dimensions: 6.00mm x 6.00mm
• Actuator height off PCB: 4.30mm
• Termination style: PC Pin
• Features: Grounding Pin
• Mechanical life: 100,000 Cycles

Allowable Variation Parameters:

• Operating force: 100gf to 160gf
• Operating temperature range: May vary within component specifications
• RoHS compliance status: RoHS or ROHS3 compliant
• Product status: Active or Obsolete

The substitute parts identified below meet all critical parameters while maintaining functional equivalence in standard applications.

Parameter Comparison

Engineering Selection Recommendations

PTS645TL43-2 LFS (C&K): This is the primary direct substitute. It maintains identical electrical and mechanical specifications to the original PTS645TL43 while offering active product status. The extended operating temperature range (-40°C ~ 85°C) provides broader environmental compatibility. ROHS3 compliance supersedes the original RoHS compliance status. This part is recommended as the first choice for replacement applications.

TLE1105F160Q (E-Switch): This substitute maintains all critical parameters with a 160gf operating force compared to the original 130gf. The higher actuation force may be suitable for applications requiring increased tactile feedback or resistance to accidental activation. Operating temperature range is -20°C ~ 70°C. ROHS3 compliance is confirmed.

TLE1105F100Q (E-Switch): This substitute maintains all critical parameters with a 100gf operating force compared to the original 130gf. The lower actuation force may be advantageous in applications requiring reduced finger pressure or accessibility considerations. Operating temperature range is -20°C ~ 70°C. ROHS3 compliance is confirmed.

All substitute parts carry active product status and ROHS3 compliance, ensuring long-term availability and regulatory alignment.

Frequently Asked Questions (FAQ)

Q: Can PTS645TL43-2 LFS be used as a direct replacement for PTS645TL43?

A: Yes. PTS645TL43-2 LFS is a direct substitute with identical electrical and mechanical specifications. The primary difference is active product status and extended operating temperature range (-40°C ~ 85°C versus -10°C ~ 60°C).

Q: What is the difference between the E-Switch TLE1105F160Q and TLE1105F100Q?

A: Both parts are functionally equivalent to the PTS645TL43 in all critical parameters. The primary difference is operating force: TLE1105F160Q requires 160gf actuation force, while TLE1105F100Q requires 100gf. Select based on application tactile feedback requirements.

Q: Are all substitute parts RoHS compliant?

A: Yes. All substitute parts listed carry ROHS3 compliance, which supersedes the original RoHS compliance status of the PTS645TL43.

Q: Can operating force variations affect circuit performance?

A: Operating force affects user actuation requirements but does not alter electrical circuit performance. All listed parts maintain identical contact rating (0.05A @ 12VDC) and circuit configuration (SPST-NO).

Q: What packaging options are available?

A: PTS645TL43-2 LFS is available in Bulk packaging. TLE1105F160Q and TLE1105F100Q are available in Bulk packaging. Verify packaging requirements with your procurement specifications.

Q: Are the operating temperature ranges compatible with my application?

A: Operating temperature ranges vary among substitutes. PTS645TL43-2 LFS offers the widest range (-40°C ~ 85°C). E-Switch parts operate within -20°C ~ 70°C. Select based on your application's thermal environment.