SL660 Equivalent & Substitute Parts

Part Overview

The SL660 is a slide switch manufactured by TE Connectivity ALCOSWITCH Switches, configured as a single-pole six-throw (SP6T) switch rated for 250mA AC at 125V and 150mA DC at 12V. This through-hole mounted component features non-shorting contact timing, epoxy sealed terminals, and a mechanical life rating of 10,000 cycles. The SL660 is classified as obsolete, making identification of active equivalent parts essential for ongoing design support and procurement continuity.

Substiute Parts

SL660

TE Connectivity ALCOSWITCH SwitchesIn Stock: 971SL660 Datasheet

Current PartRFQ

1825073-4

TE Connectivity ALCOSWITCH SwitchesIn Stock: 10121825073-4 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete SL660 is based on electrical and mechanical parameter equivalence within the TE Connectivity ALCOSWITCH Switches product line. The substitute part must satisfy the following criteria:

Electrical Equivalence:

• SP6T circuit configuration
• 250mA AC current rating at 125V
• 150mA DC current rating at 12V
• Non-shorting (BBM) contact timing

Mechanical Equivalence:

• Through-hole mounting with PC pin termination
• 14.00mm actuator length
• 4.00mm switch travel
• 10,000 cycle mechanical life rating
• 6,000 cycle electrical life rating

Physical Compatibility:

• Copper alloy contacts with silver finish
• Steel, zinc-plated actuator material
• Epoxy sealed terminals
• Standard actuator type

The substitute part 1825073-4 meets all specified electrical and mechanical parameters, providing direct functional replacement capability for the obsolete SL660.

Parameter Comparison

Engineering Selection Recommendations

The part 1825073-4 is the direct equivalent substitute for the obsolete SL660. Selection of this substitute is based on the following engineering factors:

Product Status: The SL660 is classified as obsolete, while 1825073-4 maintains active product status within the TE Connectivity ALCOSWITCH Switches catalog. Active status ensures continued availability and manufacturing support.

Electrical and Mechanical Equivalence: All critical electrical parameters (current ratings, voltage ratings, circuit configuration, contact timing) and mechanical parameters (actuator dimensions, switch travel, life ratings, operating force) are identical between the two parts.

Compliance and Certification: Both parts share identical ECCN (EAR99) and HTSUS (8536.50.9050) classifications, ensuring equivalent regulatory treatment. The substitute part maintains the same contact material composition, finish specifications, and terminal sealing features as the original.

Functional Compatibility: The through-hole mounting configuration, PC pin termination style, and physical dimensions of 1825073-4 provide direct board-level compatibility with existing SL660 designs without requiring PCB modifications.

Frequently Asked Questions (FAQ)

Q: Can 1825073-4 be used as a direct replacement for SL660 in existing designs?

A: Yes. The 1825073-4 is electrically and mechanically equivalent to the SL660 across all specified parameters. No design modifications are required for substitution.

Q: What is the primary reason for substituting the SL660?

A: The SL660 is classified as obsolete. The 1825073-4 is an active product that provides equivalent functionality and ensures long-term procurement availability.

Q: Are the current and voltage ratings identical between these parts?

A: Yes. Both parts are rated for 250mA AC at 125V and 150mA DC at 12V. The SP6T circuit configuration and non-shorting contact timing are identical.

Q: Do these parts have the same physical dimensions?

A: Yes. Both parts feature a 14.00mm actuator length, 4.00mm switch travel, and identical through-hole mounting configuration with PC pin termination.

Q: Are there any differences in contact material or finish?

A: No. Both parts use copper alloy contacts with silver finish and feature epoxy sealed terminals.

Q: What is the mechanical life expectancy for the substitute part?

A: The 1825073-4 is rated for 10,000 mechanical cycles and 6,000 electrical cycles, identical to the SL660.

Q: Are regulatory classifications the same for both parts?

A: Yes. Both parts share identical ECCN (EAR99) and HTSUS (8536.50.9050) classifications.

Q: What operating temperature range applies to the substitute part?

A: The 1825073-4 operates across the same temperature range as the SL660: -10°C to 60°C.