TE Connectivity ALCOSWITCH 1-1825955-8 Equivalent & Substitute Parts

Part Overview

The TE Connectivity ALCOSWITCH 1-1825955-8 is a tactile switch with SPST-NO (Single Pole Single Throw - Normally Open) circuit configuration, rated for 0.05A at 24VDC. This component features top actuation, through-hole mounting, and a grounding pin. The part is classified as obsolete, necessitating identification of active equivalent alternatives to maintain design continuity and ensure supply chain availability for new production and repair applications.

Substiute Parts

1-1825955-8

TE Connectivity ALCOSWITCH SwitchesIn Stock: 10411-1825955-8 Datasheet

Current PartRFQ

1825955-2

TE Connectivity ALCOSWITCH SwitchesIn Stock: 260621825955-2 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete 1-1825955-8 is based on strict equivalence of the following electrical and mechanical parameters:

Electrical Equivalence Criteria:

• Circuit configuration: SPST-NO
• Contact rating: 0.05A @ 24VDC
• Switch function: Off-Mom (Momentary)
• Operating temperature range: -35°C to 85°C
• Mechanical life: 100,000 cycles

Mechanical Equivalence Criteria:

• Mounting type: Through Hole
• Actuator orientation: Top Actuated
• Termination style: PC Pin
• Outline dimensions: 6.00mm x 6.00mm
• Grounding pin feature: Present
• Operating force: 160gf
• Switch travel: 0.10mm

Regulatory Equivalence Criteria:

• Moisture Sensitivity Level: MSL 1 (Unlimited)
• REACH Status: REACH Unaffected
• ECCN: EAR99

The substitute part 1825955-2 maintains all critical electrical and mechanical parameters while offering active product status and improved supply availability.

Parameter Comparison

Engineering Selection Recommendations

The TE Connectivity ALCOSWITCH 1825955-2 is the direct functional equivalent for the obsolete 1-1825955-8. Both components share identical electrical specifications, circuit configuration, contact ratings, and mechanical mounting characteristics within the FSMJ series.

Primary Advantages of 1825955-2:

The substitute part maintains active product status, ensuring long-term supply chain availability and manufacturing support. It carries ROHS3 compliance certification, providing enhanced regulatory alignment for new designs and production environments. Both parts are REACH Unaffected and classified under ECCN EAR99, maintaining consistent export and regulatory compliance profiles.

Design Consideration:

The actuator height differs between the two parts: the main part 1-1825955-8 features a 7.30mm actuator height, while the substitute 1825955-2 has a 4.30mm actuator height. This 3.00mm difference requires PCB layout verification to ensure adequate clearance and proper actuator engagement with mechanical interfaces. The actuator material composition also differs (PA66 Nylon versus PBT), though both materials maintain equivalent electrical and mechanical performance within the specified operating parameters.

Compliance and Certification:

Both parts maintain MSL 1 (Unlimited) moisture sensitivity rating, eliminating special handling requirements. The substitute part's ROHS3 compliance provides additional environmental and regulatory assurance for applications subject to evolving compliance mandates.

Frequently Asked Questions (FAQ)

Q: Can 1825955-2 be used as a direct replacement for 1-1825955-8 in existing designs?

A: The 1825955-2 is electrically and mechanically equivalent for all critical parameters including circuit configuration, contact rating, operating temperature, and mechanical life. However, the 3.00mm difference in actuator height (7.30mm versus 4.30mm) requires PCB layout verification to confirm adequate clearance and proper mechanical engagement with actuator interfaces.

Q: What is the difference in actuator material between these parts?

A: The main part 1-1825955-8 uses Polyamide (PA66) Nylon 6/6, while the substitute 1825955-2 uses Polybutylene Terephthalate (PBT). Both materials provide equivalent electrical insulation, mechanical durability, and performance within the specified operating temperature range of -35°C to 85°C and 100,000 cycle mechanical life rating.

Q: Why is the main part classified as obsolete?

A: The 1-1825955-8 is listed as obsolete by TE Connectivity. The active equivalent 1825955-2 provides continued access to this switch functionality with improved supply availability and enhanced regulatory compliance through ROHS3 certification.

Q: Are there packaging differences between these parts?

A: The main part 1-1825955-8 packaging is not specified in available documentation. The substitute 1825955-2 is supplied in Bulk packaging. Confirm packaging requirements with your procurement specifications.

Q: Do both parts meet the same regulatory standards?

A: Both parts are REACH Unaffected and classified as EAR99 for export control purposes. The substitute 1825955-2 additionally carries ROHS3 compliance certification, providing enhanced environmental compliance for applications subject to RoHS directives.

Q: What is the moisture sensitivity level for these switches?

A: Both parts carry MSL 1 (Unlimited) moisture sensitivity rating, indicating no special moisture control or baking requirements during storage, handling, or assembly processes.

Q: Are the electrical specifications identical between these parts?

A: Yes. Both parts feature SPST-NO circuit configuration, 0.05A @ 24VDC contact rating, Off-Mom switch function, 160gf operating force, 0.10mm switch travel, and 100,000 cycle mechanical life. Operating temperature range is identical at -35°C to 85°C.

Q: What mounting considerations apply to the 1825955-2?

A: The 1825955-2 is a through-hole mounted component with top actuation and PC pin termination. The 6.00mm x 6.00mm outline dimensions match the main part. The reduced 4.30mm actuator height requires verification that mechanical interfaces and clearances accommodate this dimension.