ADE08S Equivalent & Substitute Parts

Part Overview

The ADE08S is an 8-position surface mount DIP switch manufactured by TE Connectivity ALCOSWITCH Switches. This component is a single-pole single-throw (SPST) slide-actuated switch rated for 100mA at 24VDC, designed for applications requiring reliable switching in compact form factors. The ADE08S is classified as obsolete, making identification of equivalent and substitute parts essential for ongoing production support, design updates, and inventory management. Substitute parts must maintain functional compatibility across critical electrical and mechanical parameters while accounting for manufacturing transitions and compliance requirements.

Substiute Parts

ADE08S

TE Connectivity ALCOSWITCH SwitchesIn Stock: 1054ADE08S Datasheet

Current PartRFQ

1-1825058-9

TE Connectivity ALCOSWITCH SwitchesIn Stock: 33611-1825058-9 Datasheet

DirectRFQ

219-8MST

CTS ElectrocomponentsIn Stock: 84812219-8MST Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ADE08S is determined by strict alignment with the following critical parameters:

Mandatory Compatibility Parameters:

• Circuit configuration (SPST)
• Number of positions (8)
• Current rating (100mA minimum)
• Voltage rating (24VDC minimum)
• Actuator type (Slide Standard)
• Mounting type (Surface Mount)
• Termination style (Gull Wing)
• Pitch (0.100" / 2.54mm)
• Washable capability (Yes)

Acceptable Variation Parameters:

• Contact material (Copper Alloy or Beryllium Copper)
• Contact finish (Gold)
• Height above board (within mechanical assembly constraints)
• Body material composition
• Operating temperature range (must encompass or exceed -30°C ~ 85°C)
• Mechanical and electrical life ratings
• RoHS and REACH compliance status

The substitute parts listed below satisfy all mandatory compatibility parameters. Variations in optional parameters are noted to support engineering decision-making based on specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

1-1825058-9 (TE Connectivity ALCOSWITCH Switches)

The 1-1825058-9 is the primary recommended substitute for the obsolete ADE08S. This part is manufactured by the same supplier (TE Connectivity) and maintains identical electrical specifications: 100mA at 24VDC, 8-position SPST configuration, and equivalent mechanical dimensions. The 1-1825058-9 is classified as Active product status, ensuring long-term availability and supply chain continuity. This substitute achieves ROHS3 compliance, addressing regulatory requirements that the original ADE08S does not meet. Physical dimensions are nearly identical (height difference of 0.002" / 0.05mm), presenting negligible impact on PCB assembly and mechanical fit. The 1-1825058-9 is supplied in Tube packaging, suitable for automated assembly processes.

219-8MST (CTS Electrocomponents)

The 219-8MST serves as a secondary substitute option when supply constraints or design flexibility permit. This part maintains full compatibility across all mandatory parameters: 100mA current rating, 8-position SPST configuration, slide actuator, surface mount gull wing termination, and 0.100" pitch. The 219-8MST is rated for 20VDC, which is 4VDC lower than the ADE08S 24VDC specification. This voltage differential restricts the 219-8MST to applications operating at 20VDC or below. The 219-8MST offers extended operating temperature range (-55°C ~ 85°C) and superior electrical life (2,000 cycles versus 1,000 cycles), providing enhanced performance margins in temperature-sensitive or high-cycle applications. Height above board is reduced to 0.170" (4.33mm), offering potential benefits for space-constrained designs. The 219-8MST incorporates Beryllium Copper contacts with epoxy sealed terminals and tape seal features, delivering enhanced environmental protection. ROHS3 compliance is achieved. This part is supplied in Tube packaging.

Selection Criteria:

• For direct replacement in 24VDC applications: Select 1-1825058-9
• For 20VDC or lower applications with extended temperature or cycle life requirements: Select 219-8MST
• For new designs requiring RoHS compliance: Both 1-1825058-9 and 219-8MST are compliant
• For legacy designs with RoHS exemptions: 1-1825058-9 provides closest electrical and mechanical match

Frequently Asked Questions (FAQ)

Q: Can the 219-8MST be used in a 24VDC circuit designed for the ADE08S?

A: No. The 219-8MST is rated for 20VDC maximum. Using this part in a 24VDC application exceeds the component's voltage specification and creates reliability risk. The 1-1825058-9 is the appropriate substitute for 24VDC circuits.

Q: What is the physical impact of the height difference between ADE08S (0.219") and 1-1825058-9 (0.217")?

A: The height difference is 0.002" (0.05mm), which is negligible for standard PCB assembly. This variation falls within typical manufacturing tolerances and does not require PCB redesign or mechanical accommodation.

Q: Are both substitute parts washable like the original ADE08S?

A: Yes. Both 1-1825058-9 and 219-8MST are rated as washable, maintaining compatibility with aqueous cleaning processes used in modern PCB manufacturing.

Q: What is the significance of the 219-8MST's epoxy sealed terminals and tape seal features?

A: These features provide enhanced environmental protection against moisture ingress and contamination. This is beneficial for applications exposed to humid environments, wash processes, or corrosive atmospheres. The ADE08S and 1-1825058-9 do not specify these features.

Q: Does the 219-8MST's higher electrical life rating (2,000 cycles) make it preferable to the 1-1825058-9?

A: The higher electrical life rating (2,000 cycles versus 1,000 cycles) is advantageous only for applications requiring frequent switching. For typical DIP switch applications where position changes occur infrequently during device operation, both parts provide adequate cycle life. Voltage rating compatibility remains the primary selection criterion.

Q: Why is the ADE08S classified as obsolete?

A: The ADE08S is obsolete due to manufacturing discontinuation by TE Connectivity. The 1-1825058-9 represents the active replacement within the TE Connectivity product line, offering improved compliance and supply continuity.

Q: Can the 1-1825058-9 be used as a direct drop-in replacement without PCB modification?

A: Yes. The 1-1825058-9 maintains identical pitch (0.100"), termination style (Gull Wing), and functional specifications. Height variation of 0.002" is within assembly tolerance. No PCB redesign is required.

Q: What packaging format is recommended for automated assembly?

A: Both substitute parts are supplied in Tube packaging, which is standard for automated pick-and-place assembly equipment. Tube packaging is preferred over bulk for high-volume production environments.

Q: Are there any RoHS compliance considerations when substituting the ADE08S?

A: Yes. The ADE08S is RoHS non-compliant. Both substitute parts (1-1825058-9 and 219-8MST) achieve ROHS3 compliance. If the application or end-market requires RoHS compliance, substitution is necessary. If legacy RoHS exemptions apply, the ADE08S may remain acceptable for existing designs.

Q: What is the contact material difference between the substitutes, and does it affect performance?

A: The ADE08S and 1-1825058-9 use Copper Alloy contacts, while the 219-8MST uses Beryllium Copper. Beryllium Copper offers superior electrical conductivity and wear resistance, contributing to the 219-8MST's extended electrical life rating (2,000 cycles). For standard switching applications, both contact materials provide adequate performance. Beryllium Copper is preferred in high-cycle or high-reliability applications.