TT11EGPC3 Toggle Switch SPDT Equivalent & Substitute Parts

Part Overview

The TT11EGPC3 is a through-hole mounted toggle switch manufactured by TE Connectivity ALCOSWITCH Switches, configured as a single-pole double-throw (SPDT) device with On-Off-On switching function. This component operates at 0.4VA with voltage ratings of 20V AC/DC and features epoxy sealed terminals with a brass nickel-plated actuator. The product is classified as obsolete, necessitating identification of equivalent substitute components that maintain functional and electrical compatibility for ongoing applications and new designs.

Substiute Parts

TT11EGPC3

TE Connectivity ALCOSWITCH SwitchesIn Stock: 885TT11EGPC3 Datasheet

Current PartRFQ

200MSP3T1B2M2QE

E-SwitchIn Stock: 989200MSP3T1B2M2QE Datasheet

SimilarRFQ

34CMSP31B4M2RT

Grayhill Inc.In Stock: 96134CMSP31B4M2RT Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TT11EGPC3 are identified based on strict electrical and mechanical parameter alignment. The primary substitution criteria are:

Critical Matching Parameters:

• Circuit configuration: SPDT (single-pole double-throw)
• Switch function: On-Off-On
• Mounting type: Through Hole
• Termination style: PC Pin
• Actuator type: Standard Round
• Operating temperature range: -30°C to 85°C
• Epoxy sealed terminals feature

Electrical Compatibility Parameters:

• Current rating must equal or exceed 0.4VA
• Voltage ratings must meet or exceed 20V AC and 20V DC

Substitute parts are grouped into two categories based on electrical rating alignment:

Group 1 - Exact Electrical Rating Match: Parts with identical 0.4VA current rating and 20V voltage specifications, maintaining direct functional equivalence.

Group 2 - Enhanced Electrical Rating: Parts with higher current and voltage ratings that operate within the same parameter envelope, providing superior electrical performance while maintaining full backward compatibility.

Parameter Comparison

Engineering Selection Recommendations

34CMSP31B4M2RT (Grayhill Inc.) is the primary substitute for the TT11EGPC3. This component provides exact electrical parameter matching with identical 0.4VA current rating and 20V AC/DC voltage specifications. The 34CMSP31B4M2RT maintains full functional equivalence across all critical parameters including circuit configuration, switch function, mounting type, and operating temperature range. The component is currently in active production status and carries RoHS Compliance certification, providing regulatory alignment for new designs. The actuator length differential of 0.28mm (9.40mm versus 9.68mm) falls within standard mechanical tolerance ranges for through-hole toggle switch applications.

200MSP3T1B2M2QE (E-Switch) serves as an alternative substitute with enhanced electrical ratings. This component provides 3A current capacity and 120V AC / 28V DC voltage ratings, exceeding the original specification envelope. The 200MSP3T1B2M2QE maintains identical circuit configuration, switch function, and mounting characteristics. This component is in active production status and carries ROHS3 Compliance certification. The enhanced electrical ratings provide design flexibility for applications requiring higher power handling capacity while maintaining backward compatibility with the original TT11EGPC3 footprint and function.

Both substitute components are currently in active production, ensuring long-term availability and supply chain stability compared to the obsolete TT11EGPC3.

Frequently Asked Questions (FAQ)

Q: Can the 34CMSP31B4M2RT directly replace the TT11EGPC3 in existing applications?

A: Yes. The 34CMSP31B4M2RT provides exact electrical parameter matching with identical 0.4VA current rating and 20V AC/DC voltage specifications. All critical functional parameters including circuit configuration (SPDT), switch function (On-Off-On), mounting type (Through Hole), and termination style (PC Pin) are identical. The actuator length difference of 0.28mm is within standard mechanical tolerance ranges for toggle switch applications.

Q: What is the primary difference between the two substitute options?

A: The 34CMSP31B4M2RT provides exact electrical parameter matching to the original TT11EGPC3 with 0.4VA current and 20V ratings. The 200MSP3T1B2M2QE offers enhanced electrical performance with 3A current capacity and 120V AC / 28V DC voltage ratings. Both maintain identical circuit configuration and switching function. Selection depends on whether the application requires exact parameter matching or can benefit from higher electrical ratings.

Q: Are there any compliance differences between the substitute parts?

A: The TT11EGPC3 is marked as "Not applicable" for RoHS status. The 34CMSP31B4M2RT carries RoHS Compliance certification, and the 200MSP3T1B2M2QE carries ROHS3 Compliance certification. Both substitute components meet current regulatory requirements for new designs and applications requiring RoHS compliance.

Q: How do the electrical life ratings compare?

A: The TT11EGPC3 specifies 60,000 electrical cycles. The 34CMSP31B4M2RT and 200MSP3T1B2M2QE both specify 30,000 electrical cycles. Applications requiring extended cycle life should evaluate this parameter against specific operational requirements.

Q: Are the PC Pin terminations compatible with the original PCB design?

A: Yes. All three components utilize PC Pin termination style with identical Through Hole mounting type. PCB footprints designed for the TT11EGPC3 will accommodate both substitute components without modification.

Q: What is the significance of the actuator length difference?

A: The TT11EGPC3 has an actuator length of 9.68mm, while both substitutes measure 9.40mm. This 0.28mm difference is within standard mechanical tolerance ranges for toggle switch panel cutout applications. Panel designs with standard clearances will accommodate both dimensions without modification.

Q: Can the 200MSP3T1B2M2QE be used in applications designed for 20V operation?

A: Yes. The 200MSP3T1B2M2QE with 120V AC and 28V DC ratings exceeds the original 20V specification. Components with higher voltage ratings operate safely at lower voltages. The enhanced ratings provide design flexibility for applications that may require higher voltage operation in the future.