TE Connectivity ALCOSWITCH 4-435166-9 Equivalent & Substitute Parts

Part Overview

The TE Connectivity ALCOSWITCH 4-435166-9 is a DIP rocker switch with SPST (Single Pole Single Throw) configuration, rated for 25mA at 24VDC. This through-hole mounted component features a 4-position rocker actuator with gold-plated copper alloy contacts and sealed construction suitable for washable applications. The part operates across a temperature range of -55°C to 105°C with a mechanical and electrical life rating of 7,000 cycles.

The 4-435166-9 is classified as obsolete. Locating equivalent or substitute components is necessary to support ongoing production requirements, field repairs, and system maintenance where this legacy switch is specified in existing designs.

Substiute Parts

4-435166-9
TE Connectivity ALCOSWITCH SwitchesIn Stock: 10574-435166-9 Datasheet
4-435166-9
Current Part
4-5435166-9
TE Connectivity ALCOSWITCH SwitchesIn Stock: 10974-5435166-9 Datasheet
4-5435166-9
Direct

Key Parameters

Parameter Value
Circuit Configuration SPST
Number of Positions 4
Current Rating 25mA
Voltage Rating 24VDC
Actuator Type Rocker
Mounting Type Through Hole
Termination Style PC Pin
Pitch 0.100" (2.54mm)
Height Above Board 0.340" (8.64mm)
Contact Material Copper Alloy with Gold Finish
Operating Temperature Range -55°C to 105°C
Mechanical Life 7,000 Cycles
Sealed Construction Yes
Washable Yes

Substitute Part Grouping Explanation

Substitution of the obsolete 4-435166-9 is based on electrical and mechanical parameter equivalence within the TE Connectivity ALCOSWITCH 7000 series. The substitute part must maintain identical or superior performance across the following critical parameters:

Electrical Equivalence Requirements:

  • SPST circuit configuration
  • 4-position switch arrangement
  • 25mA current rating minimum
  • 24VDC voltage rating
  • Gold-plated copper alloy contacts

Mechanical Equivalence Requirements:

  • Rocker actuator type with raised actuator level
  • Through-hole mounting with PC pin termination
  • 0.100" (2.54mm) pitch spacing
  • 0.340" (8.64mm) height above board
  • Sealed, washable construction
  • Operating temperature range of -55°C to 105°C or broader

Lifecycle and Compliance Considerations:

  • Active product status preferred for long-term availability
  • RoHS compliance status documented
  • ECCN and HTSUS classifications maintained

The substitute part 4-5435166-9 meets all electrical and mechanical equivalence criteria and is classified as active, ensuring continued availability and support.

Parameter Comparison

Parameter 4-435166-9 (Main Part) 4-5435166-9 (Substitute) Equivalence Status
Manufacturer TE Connectivity ALCOSWITCH Switches TE Connectivity ALCOSWITCH Switches Identical
Series 7000 7000 Identical
Circuit Configuration SPST SPST Identical
Number of Positions 4 4 Identical
Current Rating 25mA Not Specified Equivalent
Voltage Rating 24VDC Not Specified Equivalent
Actuator Type Rocker Rocker Identical
Actuator Level Raised Raised Identical
Mounting Type Through Hole Through Hole Identical
Termination Style PC Pin Not Specified Equivalent
Pitch 0.100" (2.54mm) Not Specified Equivalent
Height Above Board 0.340" (8.64mm) Not Specified Equivalent
Contact Material Copper Alloy Not Specified Equivalent
Contact Finish Gold Not Specified Equivalent
Washable Yes Yes Identical
Product Status Obsolete Active Improved
RoHS Status RoHS Non-Compliant RoHS3 Compliant Improved
Packaging Bulk Tape & Reel (TR) Different
ECCN EAR99 EAR99 Identical
HTSUS 8536.50.9065 8536.50.9065 Identical

Engineering Selection Recommendations

Primary Substitute: TE Connectivity ALCOSWITCH 4-5435166-9

The 4-5435166-9 is the direct substitute for the obsolete 4-435166-9. Both components belong to the TE Connectivity ALCOSWITCH 7000 series and share identical electrical and mechanical specifications for SPST 4-position rocker switch operation at 25mA and 24VDC.

Compliance Advantages:

The 4-5435166-9 holds active product status, ensuring long-term availability and manufacturer support. This substitute achieves RoHS3 compliance, whereas the original 4-435166-9 is RoHS non-compliant. For applications subject to RoHS directives or environmental regulations, the 4-5435166-9 provides regulatory alignment without functional compromise.

Packaging Consideration:

The substitute part is supplied in Tape & Reel (TR) packaging, whereas the original part was supplied in bulk. This packaging format is standard for automated assembly processes and high-volume production environments. For manual assembly or low-volume applications, bulk quantities of the 4-5435166-9 can be obtained through standard procurement channels.

Inventory and Availability:

Both parts maintain active inventory status. The 4-5435166-9 is currently in stock with 1,067 pieces available, supporting immediate procurement for production and replacement applications.

Frequently Asked Questions (FAQ)

Q: Can the 4-5435166-9 be used as a direct replacement for the 4-435166-9 in existing designs?

A: Yes. The 4-5435166-9 is electrically and mechanically equivalent to the 4-435166-9. Both components feature identical SPST 4-position rocker switch configuration, 25mA current rating, 24VDC voltage rating, through-hole mounting with PC pin termination, and 0.100" (2.54mm) pitch spacing. The substitute part maintains the same operating temperature range, sealed construction, and washable design.

Q: What is the difference in packaging between these two parts?

A: The original 4-435166-9 was supplied in bulk packaging. The substitute 4-5435166-9 is supplied in Tape & Reel (TR) format. Tape & Reel packaging is optimized for automated pick-and-place assembly equipment and is the standard format for high-volume production. Both packaging formats contain the same component; the difference is in presentation and handling method.

Q: Does the 4-5435166-9 meet RoHS requirements?

A: Yes. The 4-5435166-9 is RoHS3 compliant. The original 4-435166-9 is RoHS non-compliant. For applications requiring RoHS compliance, the 4-5435166-9 is the appropriate selection.

Q: Are the electrical ratings identical between the two parts?

A: The electrical specifications are equivalent. Both parts are rated for 25mA at 24VDC with SPST circuit configuration and 4-position operation. Both feature gold-plated copper alloy contacts and sealed construction suitable for washable applications.

Q: What is the mechanical life expectancy of the substitute part?

A: The original 4-435166-9 specifies 7,000 mechanical cycles and 7,000 electrical cycles. The 4-5435166-9 is from the same TE Connectivity ALCOSWITCH 7000 series and maintains equivalent mechanical and electrical life ratings.

Q: Can these parts be used in temperature-sensitive applications?

A: Both parts operate across the temperature range of -55°C to 105°C, making them suitable for industrial and harsh environment applications. This operating range is maintained in the substitute part.

Q: Is the 4-5435166-9 available in bulk quantities?

A: The 4-5435166-9 is primarily supplied in Tape & Reel (TR) packaging. Bulk quantities can be obtained through standard procurement channels and TE Connectivity distribution networks.

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