TE Connectivity 3-435640-2 DIP Switch Equivalent & Substitute Parts

Part Overview

The TE Connectivity 3-435640-2 is a 12-position DIP switch with rocker actuator, rated for 60mA at 5VDC, designed for through-hole mounting applications. This component is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design support and procurement planning. The part operates across an industrial temperature range of -55°C to 105°C with a mechanical and electrical life rating of 2,000 cycles.

Substiute Parts

3-435640-2

TE Connectivity ALCOSWITCH SwitchesIn Stock: 8263-435640-2 Datasheet

Current PartRFQ

5435640-3

TE Connectivity ALCOSWITCH SwitchesIn Stock: 13395435640-3 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TE Connectivity 3-435640-2 is constrained by the following critical electrical and mechanical parameters:

Mandatory Matching Parameters:

• Circuit configuration: SPST
• Current rating: 60mA
• Voltage rating: 5VDC
• Actuator type: Rocker with raised level
• Contact material and finish: Copper alloy with gold plating
• Mounting type: Through hole
• Termination style: PC pin
• Pitch: 0.100" (2.54mm)
• Height above board: 0.340" (8.64mm)
• Operating temperature range: -55°C to 105°C
• Mechanical and electrical life: 2,000 cycles minimum

Variable Parameters Allowing Substitution:

• Number of positions (12 in main part; 5 in substitute)
• Physical length (varies with position count)
• Packaging format
• RoHS compliance status
• Product lifecycle status

The substitute part 5435640-3 maintains electrical equivalence across all critical parameters while differing in position count and compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

Product Status Considerations:

The 3-435640-2 carries an obsolete designation, indicating end-of-life status with no further manufacturing or support. The substitute part 5435640-3 is classified as Last Time Buy, representing a transitional lifecycle phase with limited availability before discontinuation.

Compliance and Certification:

The main part 3-435640-2 is RoHS non-compliant, reflecting its legacy design status. The substitute 5435640-3 achieves RoHS3 compliance, aligning with current regulatory requirements for electronic components in regulated markets. This compliance difference is significant for applications subject to environmental and hazardous substance restrictions.

Electrical and Mechanical Equivalence:

Both parts maintain identical electrical specifications (60mA at 5VDC SPST configuration) and mechanical characteristics (rocker actuator, through-hole mounting, 0.100" pitch, 2,000-cycle life rating). The electrical performance is fully equivalent for applications requiring these specifications.

Position Count and Physical Dimensions:

The substitute part 5435640-3 provides 5 positions compared to the 12 positions of the main part. This reduction in position count results in a shorter physical length (0.580" versus 1.280"). Component selection must account for application requirements regarding the number of independent switch positions needed and available PCB space.

Procurement and Availability:

The main part maintains 796 units in current inventory as new original stock. The substitute part has 1,317 units available in tube packaging. Both parts are sourced from the same manufacturer and series, ensuring design continuity.

Frequently Asked Questions (FAQ)

Q: Can the 5435640-3 directly replace the 3-435640-2 in all applications?

A: Electrical and mechanical compatibility is confirmed for applications requiring SPST switching at 60mA and 5VDC. However, the substitute part provides only 5 switch positions versus 12 in the original part. Direct replacement is possible only if the application requires 5 or fewer independent switch positions. Applications requiring all 12 positions cannot use this substitute without circuit redesign.

Q: What is the significance of the RoHS compliance difference?

A: The 3-435640-2 is RoHS non-compliant, while the 5435640-3 is RoHS3 compliant. For applications subject to RoHS regulations (primarily in EU markets and regulated industries), the compliant substitute is required. For legacy systems or applications without regulatory constraints, either part may be acceptable from a technical standpoint.

Q: Are the electrical performance characteristics identical between these parts?

A: Yes. Both parts operate at 60mA maximum current, 5VDC rating, with SPST circuit configuration, identical contact materials (copper alloy with gold finish), and matching operating temperature ranges (-55°C to 105°C). Electrical performance is equivalent.

Q: What are the physical space implications of using the substitute part?

A: The substitute part 5435640-3 is significantly shorter (0.580" length versus 1.280"), resulting in reduced PCB footprint. The height above board remains identical at 0.340". If PCB layout accommodates the shorter length, this presents a space advantage. If the original design requires the full 1.280" length for mechanical or layout reasons, the shorter substitute may not be suitable.

Q: How does the packaging difference affect component handling?

A: The main part 3-435640-2 packaging is not specified in available documentation. The substitute part 5435640-3 is supplied in tube packaging, which is standard for DIP switches and provides organized component storage and automated handling compatibility. Tube packaging does not affect electrical or mechanical performance.

Q: What is the product lifecycle status of each part?

A: The 3-435640-2 is designated obsolete, indicating manufacturing has ceased and no further support is available. The 5435640-3 is Last Time Buy, meaning limited production continues with a defined end date. For new designs, neither part is recommended for long-term production use. For legacy system support, the Last Time Buy status of the substitute provides a limited window for procurement before complete discontinuation.

Q: Are there any moisture sensitivity considerations?

A: The main part 3-435640-2 lists MSL as Not Applicable. The substitute part 5435640-3 is rated MSL 1 (Unlimited), indicating no moisture sensitivity constraints. This represents an improvement in the substitute part for storage and handling flexibility.