TE Connectivity ALCOSWITCH 435640-4 Equivalent & Substitute Parts

Part Overview

The TE Connectivity ALCOSWITCH 435640-4 is a DIP switch with SPST (Single Pole Single Throw) circuit configuration, featuring a 6-position rocker actuator rated for 60mA at 5VDC. This component is designed for through-hole mounting applications requiring reliable switching functionality across industrial and commercial temperature ranges. The part is currently in Active product status with 854 units in stock.

Identification of equivalent and substitute parts becomes necessary when the primary part reaches end-of-life status, when inventory constraints occur, or when design requirements permit operation within alternative electrical and mechanical parameters. The substitute parts listed below maintain compatibility with the core switching function while accommodating variations in actuator type, voltage rating, and current handling capacity.

Substiute Parts

435640-4

TE Connectivity ALCOSWITCH SwitchesIn Stock: 954435640-4 Datasheet

Current PartRFQ

5435640-4

TE Connectivity ALCOSWITCH SwitchesIn Stock: 47265435640-4 Datasheet

DirectRFQ

206-6

CTS ElectrocomponentsIn Stock: 1275206-6 Datasheet

SimilarRFQ

206-6ST

CTS ElectrocomponentsIn Stock: 9371206-6ST Datasheet

SimilarRFQ

208-6

CTS ElectrocomponentsIn Stock: 3348208-6 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution logic for DIP switches is determined by the following critical parameters: circuit configuration (SPST), number of positions (6), mounting type (through hole), pitch spacing (0.100"), and physical form factor compatibility. Secondary parameters including actuator type, voltage rating, and current rating define the operational envelope within which substitutes function.

The substitute parts are grouped into two categories:

Direct Equivalent (Same Manufacturer): Part 5435640-4 maintains identical electrical specifications (SPST, 6-position, 60mA, 5VDC) and mechanical form factor. This part differs only in product status (Last Time Buy) and compliance certifications (ROHS3 Compliant, MSL 1).

Functional Alternatives (Different Manufacturer): Parts 206-6, 206-6ST, and 208-6 from CTS Electrocomponents share the core switching architecture (SPST, 6-position, through-hole, 0.100" pitch) but operate at different voltage and current ratings (50mA at 24VDC). These parts feature slide actuators rather than rocker actuators and are suitable for applications where the higher voltage rating and lower current requirement are acceptable.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Same Electrical Specifications):

Part 5435640-4 provides a direct functional equivalent to 435640-4 with identical electrical and mechanical characteristics. This part carries Last Time Buy status, indicating limited future availability. Selection of 5435640-4 is appropriate when maintaining exact voltage (5VDC) and current (60mA) specifications is required. The part achieves ROHS3 compliance and carries MSL 1 rating, suitable for standard storage and handling conditions.

For Voltage-Tolerant Applications (24VDC Operation):

Parts 206-6, 206-6ST, and 208-6 from CTS Electrocomponents are suitable for applications where the circuit operates at 24VDC and current requirements do not exceed 50mA. These parts maintain the same 6-position SPST configuration and through-hole mounting compatibility. Key differences include:

• 206-6ST features epoxy sealed terminals and tape seal washability, with 10,000-cycle electrical life rating
• 206-6 provides standard configuration with 10,000-cycle electrical life and REACH Unaffected status
• 208-6 offers tin contact finish with 2,000-cycle electrical life, matching the cycle rating of the primary part

All CTS alternatives maintain ROHS3 compliance and operate within the -55°C to 85°C temperature range, which is narrower than the primary part's -55°C to 105°C range.

Product Status Considerations:

The primary part 435640-4 maintains Active status with adequate inventory (854 units). The direct substitute 5435640-4 carries Last Time Buy status, indicating this part should be selected only when 435640-4 becomes unavailable. CTS alternatives (206-6, 206-6ST, 208-6) all maintain Active status with higher inventory levels (1,253 to 9,318 units), providing long-term availability for applications tolerating the specified parameter variations.

Frequently Asked Questions (FAQ)

Q: Can 5435640-4 be used as a direct replacement for 435640-4?

A: Yes. Part 5435640-4 maintains identical electrical specifications (SPST, 6-position, 60mA, 5VDC), mechanical form factor, and operating temperature range (-55°C to 105°C). The parts differ only in product status (Last Time Buy versus Active) and compliance certifications. Direct substitution is electrically and mechanically compatible.

Q: What are the limitations when substituting CTS parts (206-6, 206-6ST, 208-6) for the TE Connectivity 435640-4?

A: CTS substitutes operate at 24VDC with 50mA current rating, compared to the primary part's 5VDC and 60mA specification. These parts feature slide actuators instead of rocker actuators. The operating temperature range is limited to -55°C to 85°C versus the primary part's -55°C to 105°C. Substitution is valid only when the application circuit operates at 24VDC, current draw does not exceed 50mA, and the maximum operating temperature does not exceed 85°C.

Q: What is the difference between 206-6 and 206-6ST?

A: Both parts share identical electrical specifications (SPST, 6-position, 50mA, 24VDC) and mechanical dimensions. Part 206-6ST includes epoxy sealed terminals and tape seal features, providing washability. Part 206-6ST also carries higher electrical life rating (10,000 cycles). Selection of 206-6ST is appropriate for applications requiring sealed terminal protection or washable component characteristics.

Q: How do the contact finishes affect substitution compatibility?

A: The primary part 435640-4 and direct substitute 5435640-4 feature gold contact finish. CTS parts 206-6 and 206-6ST also use gold finish, while 208-6 uses tin finish. Gold finish provides superior corrosion resistance and lower contact resistance. Tin finish is acceptable for standard industrial applications but offers reduced corrosion protection. Contact finish selection should align with application environment and reliability requirements.

Q: What is the significance of the electrical life ratings?

A: The primary part 435640-4 and direct substitute 5435640-4 are rated for 2,000 electrical cycles. CTS parts 206-6 and 206-6ST provide 10,000-cycle electrical life, while 208-6 matches the 2,000-cycle rating. Higher electrical life ratings indicate extended operational durability under repeated switching conditions. Selection should consider the application's expected switching frequency and operational lifetime.

Q: Are all substitute parts RoHS compliant?

A: The primary part 435640-4 carries "Not Applicable" RoHS status. The direct substitute 5435640-4 and all CTS alternatives (206-6, 206-6ST, 208-6) achieve ROHS3 compliance. For applications requiring RoHS compliance certification, the substitute parts provide documented compliance status.

Q: What mounting compatibility exists between the primary part and substitutes?

A: All parts listed (435640-4, 5435640-4, 206-6, 206-6ST, 208-6) feature through-hole mounting with 0.100" (2.54mm) pitch spacing. Physical height above board varies slightly: TE Connectivity parts measure 0.340" (8.64mm) while CTS parts measure 0.334" (8.48mm). This 0.006" difference is negligible for standard PCB layout applications. All parts use PC pin termination style compatible with standard through-hole soldering processes.