TE Connectivity ALCOSWITCH 435668-4 Equivalent & Substitute Parts

Part Overview

The TE Connectivity ALCOSWITCH 435668-4 is a DIP switch with SPST circuit configuration, 5-position rocker actuator, rated for 60mA at 5VDC, and designed for through-hole mounting applications. This component is classified as obsolete, necessitating identification of equivalent substitute parts for ongoing design requirements and procurement needs. The 7100 series construction features a flush, recessed rocker actuator with gold-plated copper alloy contacts and operates across the industrial temperature range of -55°C to 105°C.

Substiute Parts

435668-4

TE Connectivity ALCOSWITCH SwitchesIn Stock: 1169435668-4 Datasheet

Current PartRFQ

5435668-4

TE Connectivity ALCOSWITCH SwitchesIn Stock: 9485435668-4 Datasheet

DirectRFQ

5435640-3

TE Connectivity ALCOSWITCH SwitchesIn Stock: 13395435640-3 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 435668-4 are identified based on strict electrical and mechanical parameter compatibility within the TE Connectivity ALCOSWITCH 7100 series. The substitution logic requires matching the following critical parameters: SPST circuit configuration, 5-position count, 60mA current rating, 5VDC voltage rating, rocker actuator type, through-hole mounting, 0.100" pitch, copper alloy gold-plated contacts, and -55°C to 105°C operating temperature range. Mechanical and electrical life specifications of 2,000 cycles establish the baseline durability requirement. All substitute candidates maintain ROHS3 compliance and identical termination style (PC Pin). Variations in actuator level (flush/recessed versus raised) and height above board represent acceptable mechanical design alternatives that do not affect electrical performance or circuit functionality.

Parameter Comparison

Engineering Selection Recommendations

5435668-4 (Direct Substitute): This part carries Active product status, ensuring long-term availability and supply chain continuity. It maintains identical series designation (7100), circuit configuration (SPST), position count (5), contact finish (gold), and mounting methodology (through-hole). The part is ROHS3 compliant and carries equivalent environmental certifications. Selection of this part is appropriate for applications where the main part 435668-4 is no longer procurable.

5435640-3 (Manufacturer Recommended Substitute): This part is designated Last Time Buy status, indicating limited future availability. It provides complete electrical and mechanical compatibility with the main part, including matched current rating (60mA), voltage rating (5VDC), operating temperature range (-55°C to 105°C), and lifecycle specifications (2,000 mechanical and electrical cycles). The primary mechanical difference is the raised actuator level (0.340" height versus 0.290"), which may require PCB layout verification for clearance compatibility. This part maintains ROHS3 compliance and identical termination specifications. The MSL rating of 1 (Unlimited) provides superior moisture handling characteristics compared to the main part.

For new designs and long-term production requirements, 5435668-4 is the preferred selection due to Active status. For existing inventory management or near-term requirements, 5435640-3 provides full electrical equivalence with documented manufacturer recommendation.

Frequently Asked Questions (FAQ)

Q: Can 5435668-4 be used as a direct replacement for 435668-4 in existing designs?

A: Yes. Both parts share identical series designation (7100), circuit configuration (SPST), position count (5), rocker actuator type, through-hole mounting, 0.100" pitch, gold-plated copper alloy contacts, and ROHS3 compliance. The 5435668-4 is the active production equivalent of the obsolete 435668-4.

Q: What is the primary difference between 5435668-4 and 5435640-3?

A: The 5435640-3 features a raised actuator level with 0.340" height above board compared to the flush/recessed 0.290" height of 5435668-4. Both maintain electrical equivalence (SPST, 5-position, rocker actuator, through-hole mounting). The 5435640-3 carries Last Time Buy status, while 5435668-4 is Active. PCB layout clearance must be verified when substituting between these two parts due to the 0.050" height difference.

Q: Are all three parts (435668-4, 5435668-4, 5435640-3) electrically interchangeable?

A: The 5435668-4 and 5435640-3 are electrically interchangeable with the main part 435668-4 based on matching SPST circuit configuration, 5-position count, rocker actuator type, through-hole mounting, and 0.100" pitch. Mechanical form factor differences (actuator level and height) require physical verification for PCB compatibility.

Q: What does Last Time Buy status mean for the 5435640-3?

A: Last Time Buy indicates that TE Connectivity has announced a final production run for this part number. After existing inventory is depleted, the part will no longer be manufactured. For applications currently using 5435640-3, transition planning to 5435668-4 (Active status) is recommended for long-term supply assurance.

Q: Are there any compliance or certification differences between these parts?

A: All three parts maintain ROHS3 compliance and identical ECCN (EAR99) and HTSUS (8536.50.9065) classifications. The 5435640-3 carries MSL rating of 1 (Unlimited), providing enhanced moisture sensitivity protection compared to the main part. REACH status is Vendor Undefined for all parts.

Q: Can the 5435640-3 be used in applications with space constraints?

A: The 5435640-3 has a 0.050" greater height above board (0.340" versus 0.290") compared to 5435668-4. Applications with limited vertical clearance must verify PCB layout compatibility before substitution. The raised actuator level may also affect user interface ergonomics in manual operation scenarios.