TE Connectivity ALCOSWITCH 3-435640-5 Equivalent & Substitute Parts

Part Overview

The TE Connectivity ALCOSWITCH 3-435640-5 is a DIP rocker switch with SPST (Single Pole Single Throw) configuration, rated for 60mA at 5VDC. This 4-position through-hole component is designed for applications requiring sealed, washable switching functionality across an operating temperature range of -55°C to 105°C. The main part number 3-435640-5 is currently in active product status with 834 units in stock. Equivalent and substitute parts are necessary to address inventory availability, product lifecycle transitions, packaging requirements, and compliance certifications for ongoing production and design flexibility.

Key Parameters

Parameter	Value	Criticality for Substitution
Circuit Configuration	SPST	Critical
Current Rating	60mA	Critical
Voltage Rating	5VDC	Critical
Actuator Type	Rocker	Critical
Mounting Type	Through Hole	Critical
Pitch	0.100" (2.54mm)	Critical
Number of Positions	4	Application-Dependent
Contact Material	Copper Alloy with Gold Finish	Important
Operating Temperature Range	-55°C ~ 105°C	Important
Packaging Type	Bulk or Tube	Supply Chain

Substitute Part Grouping Explanation

Substitution logic for the TE Connectivity ALCOSWITCH 3-435640-5 is based on electrical and mechanical compatibility within the following parameters:

Critical Compatibility Parameters:

SPST circuit configuration (single pole, single throw operation)
60mA current rating
5VDC voltage rating
Rocker actuator type with raised actuator level
Through-hole mounting with 0.100" (2.54mm) pitch
Copper alloy contacts with gold finish
Operating temperature range of -55°C to 105°C

Position-Dependent Substitution: The 4-position configuration is application-specific. Parts with different position counts (such as 6-position variants) are classified as similar alternatives rather than direct equivalents, as they require different PCB layouts and circuit designs.

Packaging and Compliance Variations: Direct equivalents may differ in packaging format (bulk versus tube) and compliance certifications (RoHS status, REACH compliance). These variations do not affect electrical or mechanical performance but impact supply chain sourcing and regulatory requirements.

Parameter Comparison

Parameter	3-435640-5 (Main)	3-5435640-5 (Direct Equivalent)	5435640-4 (Similar Alternative)
Manufacturer	TE Connectivity ALCOSWITCH	TE Connectivity ALCOSWITCH	TE Connectivity ALCOSWITCH
Series	7100	7100	7100
Circuit Configuration	SPST	SPST	SPST
Number of Positions	4	4	6
Current Rating	60mA	60mA	60mA
Voltage Rating	5VDC	5VDC	5VDC
Actuator Type	Rocker (Raised)	Rocker (Raised)	Rocker (Raised)
Contact Material	Copper Alloy, Gold Finish	Copper Alloy, Gold Finish	Copper Alloy, Gold Finish
Height Above Board	0.340" (8.64mm)	0.340" (8.64mm)	0.340" (8.64mm)
Mounting Type	Through Hole	Through Hole	Through Hole
Termination Style	PC Pin	PC Pin	PC Pin
Pitch	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Operating Temperature	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C
Mechanical Life	2,000 Cycles	2,000 Cycles	2,000 Cycles
Electrical Life	2,000 Cycles	2,000 Cycles	2,000 Cycles
Body Material	Polyester (PET), Glass Filled	Polyester (PET), Glass Filled	Polyester (PET), Glass Filled
Packaging	Bulk	Tube	Tube
Product Status	Active	Last Time Buy	Last Time Buy
RoHS Status	Non-Compliant	ROHS3 Compliant	ROHS3 Compliant
Inventory (Pcs)	834	4487	4669

Engineering Selection Recommendations

Direct Equivalent Selection (3-5435640-5): The part number 3-5435640-5 is a direct electrical and mechanical equivalent to 3-435640-5. Both components share identical circuit configuration, current and voltage ratings, actuator specifications, and mounting characteristics. The primary differences are packaging format (tube versus bulk) and compliance certifications. The 3-5435640-5 carries ROHS3 compliance and MSL Level 1 rating, making it suitable for applications with regulatory compliance requirements. However, this part is designated as Last Time Buy, indicating limited future availability. Current inventory of 4487 units exceeds the main part stock.

Similar Alternative Selection (5435640-4): The part number 5435640-4 is a similar alternative with identical electrical ratings and mechanical mounting but differs in position count (6 positions versus 4 positions). This part is suitable only for applications where a 6-position DIP switch configuration is acceptable or required. The 5435640-4 is also Last Time Buy status with higher inventory (4669 units) and ROHS3 compliance. This part is not washable, unlike the main part and direct equivalent.

Compliance and Lifecycle Considerations: The main part 3-435640-5 is Active status and RoHS non-compliant. For new designs or applications requiring RoHS3 compliance, the 3-5435640-5 direct equivalent is the appropriate selection. Both substitute parts are designated Last Time Buy, indicating that long-term availability cannot be assured. For applications requiring extended component lifecycle support, the Active status of the main part 3-435640-5 provides superior long-term availability assurance.

Frequently Asked Questions (FAQ)

Q: Can 3-5435640-5 be used as a direct replacement for 3-435640-5?

A: Yes. The 3-5435640-5 is a direct electrical and mechanical equivalent. Both parts share identical SPST circuit configuration, 60mA current rating, 5VDC voltage rating, rocker actuator type, through-hole mounting with 0.100" pitch, and operating temperature range. The primary differences are packaging format (tube versus bulk) and compliance certifications. PCB layout and circuit design require no modification for substitution.

Q: What is the difference between 3-435640-5 and 5435640-4?

A: The 5435640-4 differs in position count (6 positions versus 4 positions). This requires different PCB footprints and circuit designs. All other electrical and mechanical parameters are identical. The 5435640-4 is not washable, whereas both 3-435640-5 and 3-5435640-5 are sealed and washable. The 5435640-4 is suitable only for applications specifically designed for 6-position DIP switch operation.

Q: Are there compliance differences between these parts?

A: Yes. The main part 3-435640-5 is RoHS non-compliant. Both substitute parts (3-5435640-5 and 5435640-4) are ROHS3 compliant. For applications subject to RoHS regulations, the 3-5435640-5 direct equivalent is the appropriate selection. The 3-5435640-5 also carries MSL Level 1 (Unlimited) rating, whereas the main part lists MSL as Not Applicable.

Q: What does Last Time Buy status mean for 3-5435640-5 and 5435640-4?

A: Last Time Buy designation indicates that these parts are in the final phase of their product lifecycle. Manufacturers will cease production after existing inventory is depleted. No replenishment orders will be accepted beyond a specified cutoff date. For applications requiring long-term component availability, the Active status of the main part 3-435640-5 provides superior lifecycle assurance.

Q: Can packaging format (bulk versus tube) affect circuit performance?

A: No. Packaging format does not affect electrical or mechanical performance. Bulk and tube packaging are supply chain and handling variations only. Selection between bulk and tube packaging depends on assembly process requirements, inventory management practices, and component handling procedures.

Q: Are the mechanical life and electrical life ratings identical across all three parts?

A: Yes. All three parts (3-435640-5, 3-5435640-5, and 5435640-4) are rated for 2,000 mechanical cycles and 2,000 electrical cycles. Operating temperature range is identical at -55°C to 105°C across all parts.

Q: Which part should be selected for new product designs?

A: For new designs requiring RoHS3 compliance, select 3-5435640-5. For new designs without compliance requirements and prioritizing long-term availability, select 3-435640-5 (Active status). The 5435640-4 should be selected only if 6-position DIP switch functionality is specifically required by the application.

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