ADF08STTR Equivalent & Substitute Parts

Part Overview

The ADF08STTR is an 8-position surface mount DIP switch manufactured by TE Connectivity ALCOSWITCH Switches. This component is a single-pole single-throw (SPST) slide switch rated for 25mA at 24VDC, designed for applications requiring compact, washable switching functionality. The ADF08STTR is classified as obsolete product status. Identification of equivalent and substitute parts is necessary to support ongoing maintenance, repair, and new design requirements where original inventory is depleted or procurement becomes unavailable.

Substiute Parts

ADF08STTR

TE Connectivity ALCOSWITCH SwitchesIn Stock: 1141ADF08STTR Datasheet

Current PartRFQ

4-1825059-2

TE Connectivity ALCOSWITCH SwitchesIn Stock: 188114-1825059-2 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ADF08STTR is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part must satisfy the following criteria:

Electrical Parameters:

• Circuit configuration: SPST
• Number of positions: 8
• Current rating: 25mA
• Voltage rating: 24VDC

Mechanical Parameters:

• Actuator type: Slide (Standard)
• Mounting type: Surface Mount
• Termination style: Gull Wing
• Pitch: 0.100" (2.54mm)
• Height above board: 0.177" (4.50mm)
• Contact material: Copper Alloy
• Contact finish: Gold
• Operating temperature range: -30°C to 85°C
• Mechanical life: 1,000 Cycles
• Electrical life: 1,000 Cycles

The substitute part 4-1825059-2 meets all specified parameters and is therefore a direct functional equivalent.

Parameter Comparison

Engineering Selection Recommendations

The substitute part 4-1825059-2 is a direct functional equivalent to the ADF08STTR across all critical electrical and mechanical parameters. Selection of the substitute part is supported by the following factors:

Product Status: The ADF08STTR is classified as obsolete, while 4-1825059-2 maintains active product status with significantly higher inventory availability (18,773 pieces in stock versus 1,114 pieces for the original part).

Regulatory Compliance: The substitute part 4-1825059-2 is ROHS3 compliant, whereas the ADF08STTR is RoHS non-compliant. This compliance improvement aligns with current regulatory requirements for electronic components in many markets.

Packaging: The substitute part is available in Cut Tape (CT) packaging, which supports automated assembly processes and reduces component handling.

Functional Equivalence: All electrical parameters (SPST circuit, 8 positions, 25mA, 24VDC) and mechanical parameters (surface mount, gull wing termination, 0.100" pitch, 0.177" height, copper alloy gold-plated contacts) are identical between the main part and substitute.

Frequently Asked Questions (FAQ)

Q: Can 4-1825059-2 be used as a direct replacement for ADF08STTR in existing designs?

A: Yes. The substitute part 4-1825059-2 is electrically and mechanically equivalent to the ADF08STTR. All critical parameters including circuit configuration, current and voltage ratings, actuator type, mounting configuration, and termination style are identical. The parts are interchangeable at the functional level.

Q: What is the difference between the ADF08STTR and 4-1825059-2?

A: The primary differences are product status and regulatory compliance. The ADF08STTR is obsolete and RoHS non-compliant, while 4-1825059-2 is an active product with ROHS3 compliance. The substitute part also offers superior inventory availability and is packaged in Cut Tape format.

Q: Are there any compatibility concerns with PCB layout or assembly?

A: No. Both parts share identical mechanical specifications: 0.100" (2.54mm) pitch, 0.177" (4.50mm) height above board, gull wing termination, and surface mount configuration. PCB footprints and assembly processes are directly compatible.

Q: Does the substitute part maintain the same operating temperature range?

A: Yes. Both the ADF08STTR and 4-1825059-2 operate across the identical temperature range of -30°C to 85°C.

Q: What is the mechanical and electrical life expectancy?

A: Both parts are rated for 1,000 mechanical cycles and 1,000 electrical cycles, providing equivalent reliability and service life.

Q: Is the substitute part washable?

A: Yes. The 4-1825059-2 retains the washable feature and tape seal characteristics of the original ADF08STTR.

Q: What packaging options are available for the substitute part?

A: The substitute part 4-1825059-2 is available in Cut Tape (CT) packaging, which is suitable for automated pick-and-place assembly operations.