PTS645VL15 LFS Equivalent & Substitute Parts

Part Overview

The PTS645VL15 LFS 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 component features side actuation, through-hole right-angle mounting, and a 15.85mm actuator length. The product is currently obsolete, making identification of compatible substitute parts essential for ongoing design support and production continuity.

Substiute Parts

PTS645VL15 LFS

C&KIn Stock: 1174PTS645VL15 LFS Datasheet

Current PartRFQ

TL1105QF160Q

E-SwitchIn Stock: 10612TL1105QF160Q Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PTS645VL15 LFS is determined by strict equivalence across the following critical parameters:

• Circuit Configuration: Must be SPST-NO
• Switch Function: Must be Off-Mom (Momentary)
• Contact Rating: Must be 0.05A @ 12VDC
• Mounting Type: Must be Through Hole, Right Angle
• Actuator Length: Must be 15.85mm
• Actuator Orientation: Must be Side Actuated
• Termination Style: Must be PC Pin
• Mechanical Life: Must be 100,000 Cycles minimum

The TL1105QF160Q from E-Switch meets all critical functional and mechanical requirements for direct substitution. While minor variations exist in outline dimensions, operating force, and temperature range, these do not preclude functional equivalence in applications designed for the PTS645VL15 LFS.

Parameter Comparison

Engineering Selection Recommendations

The TL1105QF160Q is a direct functional equivalent for the obsolete PTS645VL15 LFS. Both components share identical circuit configuration, contact rating, mounting methodology, and actuator specifications. The TL1105QF160Q carries active product status with ROHS3 compliance, providing superior long-term availability and regulatory alignment compared to the obsolete C&K part.

Outline dimension variations (7.50mm x 7.10mm versus 7.10mm x 6.55mm) are minor and do not affect PCB footprint compatibility for standard through-hole applications. The operating force differential (130gf versus 160gf) represents a 23% increase, which may be relevant only in applications with specific tactile feedback requirements.

The TL1105QF160Q operates within a narrower temperature range (-20°C ~ 70°C) compared to the PTS645VL15 LFS (-40°C ~ 85°C). Applications requiring operation below -20°C or above 70°C must evaluate this constraint against design specifications.

Frequently Asked Questions (FAQ)

Q: Can the TL1105QF160Q replace the PTS645VL15 LFS in existing designs?

A: Yes. Both components are SPST-NO momentary switches with identical contact ratings (0.05A @ 12VDC), actuator length (15.85mm), and mounting configuration (through-hole, right-angle, side-actuated). Electrical and mechanical compatibility is established.

Q: What are the differences between these two parts?

A: The primary differences are outline dimensions (7.50mm x 7.10mm versus 7.10mm x 6.55mm), operating force (130gf versus 160gf), and operating temperature range (-40°C ~ 85°C versus -20°C ~ 70°C). These variations do not affect functional equivalence for standard applications.

Q: Does the operating force difference affect compatibility?

A: Operating force affects tactile feedback and actuation effort. The TL1105QF160Q requires 30gf additional force. This is relevant only if the original design depends on specific actuation characteristics. For standard momentary switch applications, this difference is not functionally limiting.

Q: Are there packaging considerations for the TL1105QF160Q?

A: The TL1105QF160Q is supplied in bulk packaging, whereas the PTS645VL15 LFS packaging specification was not provided. Confirm packaging requirements with your procurement process.

Q: What is the temperature operating range constraint?

A: The TL1105QF160Q operates from -20°C to 70°C, compared to the PTS645VL15 LFS range of -40°C to 85°C. If your application requires operation outside the -20°C to 70°C window, the TL1105QF160Q is not suitable without additional thermal management evaluation.

Q: Are both parts RoHS compliant?

A: Yes. The PTS645VL15 LFS is RoHS Compliant, and the TL1105QF160Q is ROHS3 Compliant. Both meet current regulatory requirements for hazardous substance restrictions.