LL1105SF065Q Equivalent & Substitute Parts

Part Overview

The LL1105SF065Q is a tactile switch manufactured by E-Switch, 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 is designed for applications requiring momentary switching functionality. The part is currently listed as obsolete, necessitating identification of active equivalent alternatives to maintain supply chain continuity and support ongoing production requirements.

Substiute Parts

LL1105SF065Q

E-SwitchIn Stock: 1148LL1105SF065Q Datasheet

Current PartRFQ

TL1105SF100Q

E-SwitchIn Stock: 10626TL1105SF100Q Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The TL1105SF100Q qualifies as a functional equivalent based on the following critical parameters that determine substitutability:

Matching Parameters (Substitution Basis):

• Circuit configuration: SPST-NO
• Contact rating: 0.05A @ 12VDC
• Switch function: Off-Mom (Momentary)
• Mounting type: Through Hole, Right Angle
• Actuator orientation: Side Actuated
• Actuator length: 8.35mm
• Outline dimensions: 7.10mm x 6.55mm
• Termination style: PC Pin
• Operating temperature range: -20°C ~ 70°C
• Switch travel: 0.25mm
• RoHS compliance: ROHS3 Compliant
• Moisture sensitivity level: 1 (Unlimited)

Differing Parameters:

• Operating force: 65gf (LL1105SF065Q) vs. 100gf (TL1105SF100Q)
• Mechanical life: 5,000,000 cycles (LL1105SF065Q) vs. 100,000 cycles (TL1105SF100Q)
• Product status: Obsolete (LL1105SF065Q) vs. Active (TL1105SF100Q)

The TL1105SF100Q represents an active production alternative within the E-Switch tactile switch portfolio, maintaining electrical and mechanical compatibility while offering current availability.

Parameter Comparison

Engineering Selection Recommendations

The TL1105SF100Q is the designated active equivalent for the obsolete LL1105SF065Q. Both components maintain identical electrical specifications (0.05A @ 12VDC, SPST-NO configuration) and mechanical form factors (through-hole right-angle mounting, 8.35mm actuator length, 7.10mm x 6.55mm outline). Both parts satisfy ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment for current production environments.

The primary design consideration is the operating force differential: the substitute part requires 100gf actuation force compared to 65gf for the original part. This parameter must be evaluated against application-specific user interface requirements and ergonomic specifications. The mechanical life rating difference (100,000 vs. 5,000,000 cycles) reflects the different series positioning within the E-Switch product line and should be assessed against the intended duty cycle of the application.

Frequently Asked Questions (FAQ)

Q: Can TL1105SF100Q be used as a direct replacement for LL1105SF065Q?

A: The TL1105SF100Q is electrically and mechanically compatible as a substitute. Both parts share identical circuit configuration (SPST-NO), contact rating (0.05A @ 12VDC), mounting type (through-hole right-angle), and physical outline (7.10mm x 6.55mm). The primary design difference is the operating force specification (100gf vs. 65gf), which must be evaluated for the specific application.

Q: What is the significance of the operating force difference?

A: Operating force defines the pressure required to actuate the switch. The LL1105SF065Q requires 65gf, while the TL1105SF100Q requires 100gf. Applications with specific tactile feedback or ergonomic requirements must account for this 35gf increase in actuation force.

Q: Are both parts compliant with current regulatory standards?

A: Both the LL1105SF065Q and TL1105SF100Q are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component manufacturing and use.

Q: What is the packaging difference between these parts?

A: The LL1105SF065Q is supplied in standard packaging, while the TL1105SF100Q is supplied in bulk packaging. Packaging format does not affect electrical or mechanical performance.

Q: Why is the LL1105SF065Q listed as obsolete?

A: The LL1105SF065Q has been discontinued by E-Switch. The TL1105SF100Q represents the active production alternative within the E-Switch tactile switch portfolio, ensuring ongoing supply chain availability.