TE Connectivity ALCOSWITCH 435704-4 Equivalent & Substitute Parts

Part Overview

The TE Connectivity ALCOSWITCH 435704-4 is a programmable DIP switch with shunt actuator technology, designed for through-hole mounting applications. This component features a 4-position configuration with breakable shunt actuator and flush, recessed actuation level. The part is classified as obsolete, necessitating identification of active equivalent components for new designs and ongoing production requirements. The substitute part 1825190-3 provides functional continuity while offering improved compliance status and expanded inventory availability.

Substiute Parts

435704-4

TE Connectivity ALCOSWITCH SwitchesIn Stock: 988435704-4 Datasheet

Current PartRFQ

1825190-3

TE Connectivity ALCOSWITCH SwitchesIn Stock: 27011825190-3 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TE Connectivity ALCOSWITCH 435704-4 with part number 1825190-3 is based on electrical and mechanical parameter equivalence. Both components share identical specifications across all critical functional parameters: 4-position configuration, breakable shunt actuator with flush recessed actuation, through-hole mounting with PC pin termination, 0.100" pitch, 0.079" height above board, copper alloy contacts with tin finish, thermoplastic body, 0.400" length, and -55°C to 105°C operating temperature range. Both components are washable and feature programmable circuit configuration.

The substitution is valid based on the following key parameters:

• Number of Positions: 4 (identical)
• Actuator Type: Breakable (Shunt) (identical)
• Actuator Level: Flush, Recessed (identical)
• Mounting Type: Through Hole (identical)
• Termination Style: PC Pin (identical)
• Pitch: 0.100" (2.54mm), Full (identical)
• Height Above Board: 0.079" (2.00mm) (identical)
• Contact Material: Copper Alloy (identical)
• Contact Finish: Tin (identical)
• Operating Temperature: -55°C ~ 105°C (identical)
• Body Material: Thermoplastic (identical)
• Length: 0.400" (10.16mm) (identical)

Parameter Comparison

Engineering Selection Recommendations

The TE Connectivity ALCOSWITCH 1825190-3 is the direct functional equivalent for the obsolete 435704-4. Selection of the substitute part is based on the following engineering criteria:

Product Status: The main part 435704-4 is classified as obsolete, while the substitute 1825190-3 maintains active product status. Active status ensures continued manufacturer support, documentation availability, and supply chain continuity.

Compliance Status: The substitute part 1825190-3 achieves ROHS3 compliance, whereas the main part 435704-4 is RoHS non-compliant. For applications subject to RoHS directives, the substitute part satisfies regulatory requirements.

Regulatory Framework: The substitute part 1825190-3 is REACH Affected, indicating compliance with REACH regulations. The main part 435704-4 is REACH Unaffected. Applications requiring REACH compliance benefit from substitute part selection.

Moisture Sensitivity: The substitute part 1825190-3 specifies Moisture Sensitivity Level 1 (Unlimited), providing explicit handling and storage guidance. The main part 435704-4 lists MSL as Not Applicable.

Inventory Availability: The substitute part 1825190-3 maintains 2689 pieces in stock compared to 899 pieces for the main part, supporting production continuity and lead time reduction.

All electrical and mechanical parameters remain identical between the main part and substitute, ensuring direct functional interchangeability in circuit applications.

Frequently Asked Questions (FAQ)

Q: Are the 435704-4 and 1825190-3 electrically interchangeable?

A: Yes. Both components feature identical electrical specifications: 4-position programmable DIP switch configuration, breakable shunt actuator, copper alloy contacts with tin finish, and -55°C to 105°C operating temperature range. No circuit modifications are required for substitution.

Q: Are the 435704-4 and 1825190-3 mechanically interchangeable?

A: Yes. Both components share identical mechanical specifications: through-hole mounting with PC pin termination, 0.100" pitch, 0.079" height above board, 0.400" length, and thermoplastic body. PCB layout and mounting hole patterns are identical.

Q: What is the primary reason to substitute the 435704-4 with 1825190-3?

A: The main part 435704-4 is classified as obsolete. The substitute 1825190-3 is an active product with improved compliance status (ROHS3 compliant), higher inventory availability (2689 vs. 899 pieces), and explicit moisture sensitivity rating. Substitution ensures long-term supply chain viability and regulatory compliance.

Q: Does the substitute part require different handling or storage procedures?

A: The substitute part 1825190-3 specifies Moisture Sensitivity Level 1 (Unlimited), indicating no special moisture control requirements during storage or handling. The main part 435704-4 lists MSL as Not Applicable. Standard component storage practices apply to both parts.

Q: What is the packaging difference between the two parts?

A: The main part 435704-4 does not specify packaging format. The substitute part 1825190-3 is supplied in tube packaging. Tube packaging is standard for DIP switch components and does not affect electrical or mechanical performance.

Q: Are there any compliance differences between the two parts?

A: Yes. The substitute part 1825190-3 is ROHS3 compliant and REACH Affected, whereas the main part 435704-4 is RoHS non-compliant and REACH Unaffected. For applications subject to RoHS or REACH regulations, the substitute part satisfies compliance requirements.

Q: Can the 1825190-3 be used as a direct replacement in existing designs using the 435704-4?

A: Yes. All electrical and mechanical parameters are identical. Direct substitution in existing PCB designs, schematics, and bill of materials is supported without design modifications.