ADP08S Equivalent & Substitute Parts

Part Overview

The ADP08S is an 8-position surface mount DIP switch manufactured by TE Connectivity ALCOSWITCH Switches. This component features a piano actuator, SPST circuit configuration, and is rated for 25mA at 24VDC operation. The ADP08S is classified as obsolete, necessitating identification of equivalent substitute components for ongoing design requirements and production continuity. Substitute parts must maintain functional compatibility across critical electrical and mechanical parameters while meeting current manufacturing and compliance standards.

Substiute Parts

ADP08S

TE Connectivity ALCOSWITCH SwitchesIn Stock: 1071ADP08S Datasheet

Current PartRFQ

2-1571999-7

TE Connectivity ALCOSWITCH SwitchesIn Stock: 11282-1571999-7 Datasheet

DirectRFQ

193-8MS

CTS ElectrocomponentsIn Stock: 1614193-8MS Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ADP08S are qualified based on the following critical parameters that determine functional and mechanical compatibility:

Primary Compatibility Criteria:

• Circuit configuration (SPST)
• Number of positions (8)
• Voltage rating (24VDC)
• Actuator type (Piano)
• Mounting type (Surface Mount, Right Angle)
• Termination style (Gull Wing)
• Pitch spacing (0.100" / 2.54mm)
• Contact finish (Gold)

Secondary Consideration:

• Current rating must equal or exceed the original 25mA specification

The substitute parts listed maintain these core parameters while offering improved product status and compliance characteristics. Variations in height above board, body material, and mechanical life specifications do not preclude substitution when electrical and mechanical mounting requirements are satisfied.

Parameter Comparison

Engineering Selection Recommendations

2-1571999-7 (TE Connectivity ALCOSWITCH): This substitute is the primary equivalent for direct replacement of the ADP08S. It maintains identical electrical specifications (25mA, 24VDC), circuit configuration, and mechanical mounting characteristics. The 2-1571999-7 is classified as Active product status and is ROHS3 compliant, addressing regulatory requirements that the obsolete ADP08S does not meet. The component is available in Tube packaging with 1055 units in stock. The height above board is reduced to 0.273" (6.93mm) compared to the original 0.303" (7.70mm), which may require PCB layout verification in space-constrained applications.

193-8MS (CTS Electrocomponents): This substitute provides functional compatibility with enhanced current capacity (50mA versus 25mA), allowing operation in applications requiring higher switching current. The 193-8MS maintains the same voltage rating, circuit configuration, and mechanical mounting interface. This component is Active status and ROHS3 compliant. The operating temperature range extends to -40°C (compared to -30°C minimum for the ADP08S) and provides extended electrical life of 7,000 cycles. The height above board is 0.359" (9.12mm), and the component is not washable. The 193-8MS is available in Tube packaging with 1534 units in stock.

Frequently Asked Questions (FAQ)

Q: Can the 2-1571999-7 be used as a direct replacement for the ADP08S without PCB modifications?

A: The 2-1571999-7 maintains identical electrical ratings and mechanical mounting characteristics. The primary difference is a reduced height above board (0.273" versus 0.303"). PCB layout verification is required to confirm clearance compatibility with surrounding components and enclosure constraints.

Q: What is the primary advantage of the 193-8MS substitute?

A: The 193-8MS provides double the current capacity (50mA versus 25mA) while maintaining the same voltage rating and circuit configuration. This allows the component to operate in applications with higher switching current requirements. Additionally, it offers extended electrical life (7,000 cycles versus 1,000 cycles) and a wider operating temperature range (-40°C to 85°C).

Q: Are both substitute parts RoHS compliant?

A: Yes, both the 2-1571999-7 and 193-8MS are ROHS3 compliant. The original ADP08S is RoHS non-compliant, making either substitute suitable for applications requiring regulatory compliance.

Q: What is the difference in washability between the substitutes?

A: The 2-1571999-7 is washable, matching the original ADP08S specification. The 193-8MS is not washable and features epoxy sealed terminals. For applications requiring post-assembly cleaning processes, the 2-1571999-7 is the appropriate selection.

Q: Can the 193-8MS be used in applications designed for the 25mA ADP08S?

A: Yes, the 193-8MS is functionally compatible. The higher current rating (50mA) does not create incompatibility with circuits designed for 25mA operation. The component will operate within specification in such applications.

Q: What packaging options are available for these substitutes?

A: Both substitute parts are supplied in Tube packaging. The 2-1571999-7 has 1055 units in stock, and the 193-8MS has 1534 units in stock.

Q: How do the mechanical life specifications compare?

A: The ADP08S and 2-1571999-7 both specify 1,000 mechanical cycles. The 193-8MS does not provide a mechanical life specification in the available data. The electrical life for the 193-8MS is significantly higher at 7,000 cycles compared to 1,000 cycles for the other two components.