ADPA07 Equivalent & Substitute Parts

Part Overview

The ADPA07 is a 7-position piano DIP switch manufactured by TE Connectivity ALCOSWITCH Switches, designed for through-hole, right-angle mounting applications. This component features SPST (Single Pole Single Throw) switching with a 25mA current rating at 24VDC, gold-plated copper alloy contacts, and a raised piano actuator. The ADPA07 is classified as obsolete, making identification of equivalent substitute parts necessary for ongoing design support, maintenance, and production continuity. Substitute parts must maintain functional compatibility while meeting current component availability and compliance requirements.

Key Parameters

Parameter	ADPA07 Specification
Circuit Configuration	SPST
Number of Positions	7
Current Rating	25mA
Voltage Rating	24VDC
Actuator Type	Piano, Raised
Mounting Type	Through Hole, Right Angle
Pitch	0.100" (2.54mm)
Termination Style	PC Pin
Contact Finish	Gold
Operating Temperature Range	-30°C to 85°C

Substitute Part Grouping Explanation

Substitute parts for the ADPA07 are identified based on strict electrical and mechanical parameter alignment. The following criteria determine substitution eligibility:

Primary Compatibility Parameters:

Circuit configuration must be SPST
Number of positions must be 7
Voltage rating must be 24VDC
Actuator type must be piano with raised level
Mounting type must be through hole, right angle
Pitch must be 0.100" (2.54mm)
Termination style must be PC Pin

Secondary Compatibility Parameters:

Current rating must equal or exceed 25mA
Operating temperature range must encompass or exceed -30°C to 85°C
Contact finish and body material variations are acceptable provided electrical performance is maintained

The substitute parts 194-7MS and 195-7MS from CTS Electrocomponents meet all primary compatibility parameters. Both parts feature 50mA current ratings, which exceed the ADPA07 requirement of 25mA, and both support the full operating temperature range of -40°C to 85°C, which encompasses the ADPA07 specification.

Parameter Comparison

Parameter	ADPA07	194-7MS	195-7MS
Manufacturer	TE Connectivity ALCOSWITCH Switches	CTS Electrocomponents	CTS Electrocomponents
Product Status	Obsolete	Active	Active
Circuit Configuration	SPST	SPST	SPST
Number of Positions	7	7	7
Current Rating	25mA	50mA	50mA
Voltage Rating	24VDC	24VDC	24VDC
Actuator Type	Piano, Raised	Piano, Raised	Piano, Raised
Mounting Type	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle
Pitch	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Termination Style	PC Pin	PC Pin	PC Pin
Contact Finish	Gold	Gold	Tin
Height Above Board	0.294" (7.47mm)	0.311" (7.90mm)	0.311" (7.90mm)
Length	0.778" (19.76mm)	0.786" (19.96mm)	0.786" (19.96mm)
Operating Temperature Range	-30°C to 85°C	-40°C to 85°C	-40°C to 85°C
Electrical Life	1,000 Cycles	7,000 Cycles	2,000 Cycles
RoHS Status	RoHS Non-Compliant	RoHS3 Compliant	RoHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

194-7MS Selection Criteria: The 194-7MS is an active product with RoHS3 compliance and gold contact finish matching the ADPA07 specification. This part provides 50mA current capacity, exceeding the ADPA07 requirement, and supports an extended operating temperature range of -40°C to 85°C. The 194-7MS features 7,000 electrical life cycles, providing enhanced durability compared to the ADPA07's 1,000 cycles. This part is suitable for applications requiring gold-plated contact surfaces and higher cycle life expectations.

195-7MS Selection Criteria: The 195-7MS is an active product with RoHS3 compliance and tin contact finish. This part provides 50mA current capacity and supports the extended operating temperature range of -40°C to 85°C. The 195-7MS features 2,000 electrical life cycles. This part is suitable for applications where tin contact finish is acceptable and RoHS3 compliance is required.

Compliance Considerations: Both substitute parts are RoHS3 compliant, addressing regulatory requirements that the obsolete ADPA07 does not meet. Both parts maintain REACH unaffected status and EAR99 export classification consistent with the original component.

Mechanical Compatibility: Both substitute parts exhibit minor dimensional variations. The 194-7MS and 195-7MS have a height above board of 0.311" (7.90mm) compared to the ADPA07's 0.294" (7.47mm), representing a 0.017" (0.43mm) increase. Length increases from 0.778" (19.76mm) to 0.786" (19.96mm), a difference of 0.008" (0.20mm). These variations must be evaluated within the context of specific PCB layout and enclosure constraints.

Frequently Asked Questions (FAQ)

Q: Can the 194-7MS or 195-7MS be used as direct replacements for the ADPA07?

A: Both parts meet the core electrical and mechanical requirements for substitution. The 194-7MS and 195-7MS maintain SPST circuit configuration, 7-position count, 24VDC rating, piano actuator type, through-hole right-angle mounting, and 0.100" pitch. Current ratings of 50mA exceed the ADPA07's 25mA requirement. Operating temperature ranges of -40°C to 85°C encompass the ADPA07 specification. Substitution is valid provided PCB layout accommodates the minor dimensional differences and contact finish requirements are met.

Q: What are the dimensional differences between the ADPA07 and substitute parts?

A: The ADPA07 has a height above board of 0.294" (7.47mm) and length of 0.778" (19.76mm). Both the 194-7MS and 195-7MS have a height above board of 0.311" (7.90mm) and length of 0.786" (19.96mm). The height difference is 0.017" (0.43mm) and the length difference is 0.008" (0.20mm). These variations must be evaluated within specific PCB layout and enclosure design constraints.

Q: What is the difference between the 194-7MS and 195-7MS?

A: The primary difference is contact finish. The 194-7MS features gold contact finish, matching the ADPA07 specification. The 195-7MS features tin contact finish. The 194-7MS provides 7,000 electrical life cycles compared to 2,000 cycles for the 195-7MS. Both parts are RoHS3 compliant and support 50mA current at 24VDC.

Q: Are the substitute parts RoHS compliant?

A: Yes. Both the 194-7MS and 195-7MS are RoHS3 compliant. The ADPA07 is RoHS non-compliant. Selection of substitute parts addresses regulatory compliance requirements for new designs and production.

Q: Do the substitute parts support the same operating temperature range as the ADPA07?

A: The ADPA07 operates from -30°C to 85°C. Both the 194-7MS and 195-7MS operate from -40°C to 85°C, providing an extended lower temperature capability. The upper temperature limit of 85°C is identical across all three parts.

Q: What is the electrical life difference between these parts?

A: The ADPA07 is rated for 1,000 electrical cycles. The 194-7MS is rated for 7,000 cycles, and the 195-7MS is rated for 2,000 cycles. Higher cycle ratings indicate extended operational life under switching conditions.

Q: Can the 194-7MS and 195-7MS be used interchangeably?

A: Both parts are mechanically and electrically compatible for substitution of the ADPA07. However, they differ in contact finish (gold versus tin) and electrical life (7,000 versus 2,000 cycles). Selection between these two parts depends on specific application requirements for contact material and expected cycle life.

Q: What is the current rating difference, and does it affect substitution?

A: The ADPA07 is rated for 25mA. Both substitute parts are rated for 50mA. The higher current rating of substitute parts provides design margin and does not prevent substitution. Applications requiring only 25mA operation are fully supported by the 50mA-rated parts.

Q: Are there packaging differences between the ADPA07 and substitute parts?

A: The ADPA07 packaging is listed as "-" (not specified). The 194-7MS and 195-7MS are supplied in tube packaging. Packaging format may affect procurement, handling, and assembly processes.

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