TE Connectivity ALCOSWITCH 435668-7 Equivalent & Substitute Parts

Part Overview

The TE Connectivity ALCOSWITCH 435668-7 is an 8-position DIP switch with SPST circuit configuration, rocker actuator, and 60mA 5VDC electrical rating. This component is classified as Active product status and is RoHS3 compliant. The switch features through-hole mounting with PC pin termination, copper alloy contacts with gold finish, and operates across -55°C to 105°C temperature range with 2,000 mechanical and electrical life cycles.

Equivalent and substitute parts are identified based on matching core electrical parameters (circuit type, number of positions, voltage and current ratings) and mechanical compatibility (through-hole mounting, PC pin termination, 0.100" pitch, and similar physical dimensions). Substitute parts may vary in actuator type, actuator level, contact material, body material, and operational temperature range while maintaining functional equivalence within specified electrical constraints.

Key Parameters

Parameter	Value
Manufacturer Part Number	435668-7
Manufacturer	TE Connectivity ALCOSWITCH Switches
Series	7100
Circuit Configuration	SPST
Number of Positions	8
Current Rating	60mA
Voltage Rating	5VDC
Actuator Type	Rocker
Mounting Type	Through Hole
Termination Style	PC Pin
Pitch	0.100" (2.54mm)
Operating Temperature Range	-55°C to 105°C
Product Status	Active
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution logic for the TE Connectivity 435668-7 is based on the following core electrical and mechanical parameters:

Primary Matching Criteria:

Circuit configuration: SPST (Single Pole Single Throw)
Number of positions: 8
Mounting type: Through Hole
Termination style: PC Pin
Pitch: 0.100" (2.54mm)
Contact material and finish: Copper alloy or phosphor bronze with gold finish
Mechanical and electrical life: Minimum 2,000 cycles

Secondary Compatibility Parameters:

Voltage rating: Equal to or greater than 5VDC
Current rating: Equal to or greater than 60mA
Operating temperature range: Encompasses or overlaps with -55°C to 105°C
Body material: Polyester (PET) glass-filled or thermoplastic alternatives
RoHS3 compliance: Required

Variable Parameters (Non-Critical for Substitution):

Actuator type: Rocker or slide (standard)
Actuator level: Flush/recessed or raised
Height above board: 0.265" to 0.315"
Washable feature: Yes or No
Packaging: Bulk or Tube

Substitute parts identified are 78RB08ST, 78B08ST, 78RB08T, 78B08T, BD08, KAS1108ET, and KAS1108E. All substitute parts maintain SPST 8-position configuration with through-hole PC pin mounting at 0.100" pitch and meet or exceed the electrical ratings of the main part.

Parameter Comparison

Parameter	435668-7 (TE Connectivity)	78RB08ST (Grayhill)	78B08ST (Grayhill)	78RB08T (Grayhill)	78B08T (Grayhill)	BD08 (C&K)	KAS1108ET (E-Switch)	KAS1108E (E-Switch)
Circuit Configuration	SPST	SPST	SPST	SPST	SPST	SPST	SPST	SPST
Number of Positions	8	8	8	8	8	8	8	8
Current Rating (Amps)	60mA	150mA	150mA	150mA	150mA	100mA	25mA	25mA
Voltage Rating	5VDC	30VDC	30VDC	30VDC	30VDC	5VDC	24VDC	24VDC
Actuator Type	Rocker	Slide (Standard)	Slide (Standard)	Slide (Standard)	Slide (Standard)	Slide (Standard)	Slide (Standard)	Slide (Standard)
Actuator Level	Flush, Recessed	Flush, Recessed	Raised	Flush, Recessed	Raised	Raised	Raised	Raised
Contact Material	Copper Alloy	Copper Alloy	Copper Alloy	Copper Alloy	Copper Alloy	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze
Contact Finish	Gold	Gold	Gold	Gold	Gold	Gold	Gold	Gold
Height Above Board	0.290" (7.37mm)	0.265" (6.73mm)	0.315" (8.00mm)	0.265" (6.73mm)	0.315" (8.00mm)	0.297" (7.54mm)	0.275" (6.99mm)	0.275" (6.99mm)
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Termination Style	PC Pin	PC Pin	PC Pin	PC Pin	PC Pin	PC Pin	PC Pin	PC Pin
Pitch	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Operating Temperature Range	-55°C to 105°C	-40°C to 85°C	-40°C to 85°C	-40°C to 85°C	-40°C to 85°C	-40°C to 85°C	-40°C to 85°C	-40°C to 85°C
Mechanical Life	2,000 Cycles	2,000 Cycles	2,000 Cycles	2,000 Cycles	2,000 Cycles	10,000 Cycles	2,000 Cycles	2,000 Cycles
Electrical Life	2,000 Cycles	2,000 Cycles	2,000 Cycles	2,000 Cycles	2,000 Cycles	10,000 Cycles	2,000 Cycles	2,000 Cycles
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
REACH Status	Vendor Undefined	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

Primary Substitutes (Highest Compatibility):

The Grayhill 78RB08ST and 78RB08T parts provide the closest mechanical compatibility to the TE Connectivity 435668-7, featuring flush/recessed actuator level matching the main part. Both parts exceed the electrical specifications with 150mA current rating and 30VDC voltage rating. The 78RB08ST includes tape seal and washable features, while 78RB08T omits these features. Both are RoHS3 compliant and REACH unaffected. Operating temperature range is -40°C to 85°C, which covers the lower portion of the main part's range.

The C&K BD08 part matches the 5VDC voltage rating of the main part and provides 100mA current capacity, exceeding the 60mA requirement. This part features raised actuator level and offers extended mechanical and electrical life of 10,000 cycles. The BD08 is RoHS3 compliant and REACH unaffected with -40°C to 85°C operating range.

Secondary Substitutes (Functional Equivalence with Parameter Variations):

The Grayhill 78B08ST and 78B08T parts provide raised actuator level configuration with 150mA current and 30VDC voltage ratings. The 78B08ST includes tape seal and washable features; 78B08T does not. Both are RoHS3 compliant and REACH unaffected.

The E-Switch KAS1108ET and KAS1108E parts feature 25mA current rating and 24VDC voltage rating, which are lower than the main part specifications. These parts are suitable only for applications with reduced current and voltage requirements. The KAS1108ET includes tape seal and washable features; KAS1108E does not. Both are RoHS3 compliant and REACH unaffected.

Compliance Considerations:

All substitute parts maintain RoHS3 compliance. The main part lists REACH status as vendor undefined, while all substitute parts are REACH unaffected. All parts share ECCN EAR99 and HTSUS 8536.50.9065 classifications.

Frequently Asked Questions (FAQ)

Q: Can the Grayhill 78RB08ST replace the TE Connectivity 435668-7 in all applications?

A: The 78RB08ST maintains SPST 8-position configuration, through-hole PC pin mounting at 0.100" pitch, and flush/recessed actuator level identical to the main part. The 78RB08ST exceeds electrical specifications with 150mA current and 30VDC voltage ratings compared to the main part's 60mA and 5VDC. Operating temperature range is -40°C to 85°C, which does not extend to the main part's -55°C lower limit. Substitution is valid for applications operating within -40°C to 85°C temperature range and requiring 5VDC or lower voltage operation.

Q: What is the difference between the Grayhill 78RB08ST and 78RB08T?

A: Both parts are identical in electrical specifications, mechanical configuration, and physical dimensions. The 78RB08ST includes tape seal and washable features, while the 78RB08T omits these features. Selection depends on packaging and handling requirements for the application.

Q: Why do the E-Switch KAS1108ET and KAS1108E have lower current and voltage ratings?

A: The KAS1108ET and KAS1108E are designed for lower-power applications with 25mA current and 24VDC voltage specifications. These parts are functionally equivalent in circuit configuration and mechanical mounting but are suitable only for applications with reduced electrical requirements. The main part's 60mA and 5VDC ratings exceed these specifications.

Q: Is the C&K BD08 suitable as a direct replacement?

A: The BD08 matches the 5VDC voltage rating of the main part and provides 100mA current capacity, exceeding the 60mA requirement. The BD08 features raised actuator level rather than flush/recessed, which may affect PCB layout compatibility. The BD08 offers extended mechanical and electrical life of 10,000 cycles compared to the main part's 2,000 cycles. Substitution is valid when raised actuator height and extended cycle life are acceptable.

Q: What are the key differences between rocker and slide actuator types?

A: The main part features a rocker actuator, while all substitute parts feature slide (standard) actuators. Rocker actuators provide toggle-style operation, while slide actuators provide linear switching motion. Actuator type affects user interface and PCB space requirements but does not impact electrical functionality for SPST 8-position DIP switch operation.

Q: Are all substitute parts RoHS3 compliant?

A: Yes, all identified substitute parts are RoHS3 compliant. The main part is also RoHS3 compliant. All parts meet environmental compliance requirements for restricted substance use.

Q: What is the significance of the 0.100" (2.54mm) pitch specification?

A: The 0.100" pitch is the center-to-center spacing between adjacent switch positions. All substitute parts maintain this pitch, ensuring compatibility with PCB layouts designed for the main part. This standardized pitch is critical for through-hole mounting alignment and electrical connectivity.

Q: Can the main part operate at temperatures below -40°C?

A: The main part operates from -55°C to 105°C. All identified substitute parts operate from -40°C to 85°C. If the application requires operation below -40°C, the main part TE Connectivity 435668-7 is required, as no substitute parts extend to -55°C.

Q: What is the difference between tube and bulk packaging?

A: The main part is supplied in bulk packaging, while substitute parts are supplied in tube packaging. Packaging affects handling, storage, and quantity per container but does not impact component functionality or electrical performance.

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