SDA07H1KD Equivalent & Substitute Parts

Part Overview

The SDA07H1KD is a DIP slide switch manufactured by C&K, featuring SPST (Single Pole Single Throw) configuration with 7 positions, rated for 25mA at 24VDC. This component is classified as obsolete, which necessitates identification of equivalent and substitute parts for ongoing design support and procurement continuity. The switch employs a through-hole mounting configuration with PC pin termination, making it suitable for standard PCB assembly processes.

Substiute Parts

SDA07H1KD

C&KIn Stock: 920SDA07H1KD Datasheet

Current PartRFQ

SDA07H1BD

C&KIn Stock: 939SDA07H1BD Datasheet

DirectRFQ

1825057-6

TE Connectivity ALCOSWITCH SwitchesIn Stock: 73281825057-6 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SDA07H1KD is determined by the following critical parameters: circuit configuration (SPST), number of positions (7), voltage rating (24VDC), actuator type (slide standard), mounting type (through hole), pitch (0.100"), and physical dimensions (height 0.228", length 0.778"). Current rating tolerance and body material variations are permissible within the constraints of the application.

Two substitute parts have been identified:

Direct Substitute (SDA07H1BD): Maintains identical electrical specifications and physical form factor. Differs in product status (active vs. obsolete), body material (PPS vs. PPA), operating temperature range, and RoHS compliance status.

Similar Substitute (1825057-6): Maintains core electrical and mechanical compatibility with the following allowable variations: manufacturer (TE Connectivity ALCOSWITCH Switches), current rating (100mA vs. 25mA), contact material (copper alloy vs. beryllium copper), and washable feature (yes vs. no). Operating temperature range and RoHS compliance differ.

Parameter Comparison

Engineering Selection Recommendations

SDA07H1BD is the primary substitute for the SDA07H1KD. Both parts maintain identical electrical ratings (25mA, 24VDC), circuit configuration (SPST, 7 positions), and physical form factor. The SDA07H1BD offers the advantage of active product status and ROHS3 compliance, addressing regulatory requirements for new designs. The extended operating temperature range (-40°C vs. -20°C) provides additional thermal margin. Body material change from PPA to PPS does not affect functional compatibility within the specified electrical and mechanical parameters.

1825057-6 serves as an alternative substitute when higher current capacity is acceptable within the application. The 100mA current rating provides a 4x safety margin over the original 25mA specification. This part is manufactured by TE Connectivity ALCOSWITCH Switches and maintains all critical mechanical and electrical compatibility parameters. The washable feature and extended operating temperature range (-30°C) offer additional design flexibility. Selection of this part requires confirmation that the higher current rating does not introduce unintended circuit behavior.

Frequently Asked Questions (FAQ)

Q: Can SDA07H1BD be used as a direct replacement for SDA07H1KD?

A: Yes. Both parts share identical electrical specifications (25mA, 24VDC, SPST, 7 positions), actuator type (slide standard), mounting configuration (through hole), and physical dimensions (pitch 0.100", height 0.228", length 0.778"). The SDA07H1BD is the recommended substitute due to active product status and improved compliance certifications.

Q: What are the key differences between SDA07H1BD and 1825057-6?

A: The primary differences are manufacturer (C&K vs. TE Connectivity), current rating (25mA vs. 100mA), contact material (beryllium copper vs. copper alloy), and washable capability (no vs. yes). Both maintain identical circuit configuration, position count, voltage rating, and physical form factor. Selection depends on whether the higher current capacity and washable feature are required for the application.

Q: Is the higher current rating of 1825057-6 (100mA) compatible with circuits designed for 25mA?

A: The 1825057-6 is mechanically and electrically compatible with circuits designed for the SDA07H1KD. The higher current rating indicates the switch can safely handle up to 100mA; it does not force additional current through the circuit. The actual current drawn remains determined by the circuit design. However, confirmation that the higher current capability does not introduce unintended switching behavior in the specific application is required.

Q: Are there packaging differences between these substitutes?

A: The SDA07H1KD packaging is listed as "-" (unspecified). Both SDA07H1BD and 1825057-6 are supplied in tube packaging. This difference does not affect functional compatibility but may impact procurement and assembly processes.

Q: Do the body material changes (PPA to PPS) affect performance?

A: Both PPA (polyphthalamide) and PPS (polyphenylene sulfide) are suitable for the specified operating temperature range and electrical environment. The material change does not compromise functional compatibility within the defined electrical and mechanical parameters.

Q: What is the significance of RoHS compliance status?

A: The SDA07H1KD is RoHS non-compliant, while both SDA07H1BD and 1825057-6 are ROHS3 compliant. For new designs or applications subject to RoHS regulations, either substitute part is required. For legacy systems, RoHS compliance may not be a selection criterion.