EG4403 Equivalent & Substitute Parts

Part Overview

The EG4403 is a slide switch manufactured by E-Switch, configured as a 4-pole 4-throw (4P4T) through-hole component with right-angle mounting. This switch is rated for 200mA DC at 30V and features a standard actuator with 9.00mm length and 2.00mm switch travel. The product is currently obsolete, making identification of compatible substitute parts essential for ongoing system support and component procurement.

Substiute Parts

EG4403

E-SwitchIn Stock: 1052EG4403 Datasheet

Current PartRFQ

1825204-3

TE Connectivity ALCOSWITCH SwitchesIn Stock: 10531825204-3 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the EG4403 is based on the following critical parameters that must be maintained or exceeded:

• Circuit Configuration: 4P4T topology must be preserved for functional equivalence
• Current Rating: Substitute must support minimum 200mA; higher ratings are acceptable
• Voltage Rating: Substitute must support minimum 30V; higher ratings are acceptable
• Mounting Type: Through-hole configuration with compatible pin spacing and orientation
• Switch Travel: 2.00mm travel distance for mechanical compatibility
• Contact Material and Finish: Copper alloy with silver finish for electrical performance consistency
• Operating Temperature Range: Substitute must cover or exceed -20°C to 70°C
• Compliance: RoHS3 compliance required for regulatory alignment

The identified substitute part 1825204-3 meets these criteria with enhanced electrical ratings and active product status.

Parameter Comparison

Engineering Selection Recommendations

The 1825204-3 is a suitable substitute for the obsolete EG4403 based on the following factors:

• Functional Equivalence: Both parts maintain identical 4P4T circuit configuration and 2.00mm switch travel, ensuring mechanical and electrical compatibility in existing designs
• Enhanced Ratings: The substitute provides higher current capacity (300mA vs. 200mA) and voltage rating (125V vs. 30V), offering improved performance margin in the application
• Active Product Status: The 1825204-3 is an active product with confirmed inventory availability, ensuring long-term procurement viability compared to the obsolete EG4403
• Regulatory Compliance: Both parts are ROHS3 compliant and share identical ECCN and HTSUS classifications, maintaining compliance requirements
• Extended Operating Range: The substitute supports -20°C to 85°C operation, exceeding the original -20°C to 70°C range
• Physical Consideration: The actuator length difference (10.41mm vs. 9.00mm) requires mechanical clearance verification in the application enclosure

Frequently Asked Questions (FAQ)

Q: Can the 1825204-3 directly replace the EG4403 without design modifications?

A: The 1825204-3 maintains functional equivalence in circuit configuration, switch travel, and contact material. However, the 1.41mm increase in actuator length must be verified against available mechanical clearance in the application. Pin spacing and through-hole compatibility should be confirmed against PCB layout.

Q: What are the key differences in electrical ratings between these parts?

A: The EG4403 is rated for 200mA DC at 30V, while the 1825204-3 is rated for 300mA AC at 125V. The substitute provides higher current and voltage capacity, making it suitable for applications requiring the original specifications. For DC applications, the AC rating of the substitute is acceptable.

Q: Are both parts RoHS compliant?

A: Yes, both the EG4403 and 1825204-3 are ROHS3 compliant, meeting current regulatory requirements for electronic component manufacturing and use.

Q: What is the significance of the contact timing specification?

A: The EG4403 lists contact timing as not specified, while the 1825204-3 specifies shorting (MBB - make-before-break) contact timing. This indicates the substitute maintains contact continuity during position transitions, which is beneficial for signal integrity in switching applications.

Q: How do the operating temperature ranges compare?

A: The EG4403 operates from -20°C to 70°C, while the 1825204-3 extends this range to -20°C to 85°C. The substitute provides a 15°C higher upper temperature limit, offering improved performance in elevated temperature environments.

Q: What packaging considerations apply to these parts?

A: The EG4403 is available in bulk packaging with 1015 pieces in stock, while the 1825204-3 is also available in bulk packaging with 1029 pieces in stock. Both use PC pin termination suitable for through-hole PCB assembly.