K5ATBU43GPR Equivalent & Substitute Parts

Part Overview

The K5ATBU43GPR is a tactile switch manufactured by C&K, classified as SPST-NO (Single Pole Single Throw - Normally Open) with a contact rating of 0.1A at 32VDC. This illuminated surface mount switch features a round button actuator with blue LED illumination and is designed for applications requiring tactile feedback with top actuation. The K5ATBU43GPR is currently listed as obsolete, making identification of equivalent substitute parts essential for ongoing production and maintenance applications.

Substiute Parts

K5ATBU43GPR

C&KIn Stock: 803K5ATBU43GPR Datasheet

Current PartRFQ

K5ATBU43GP

C&KIn Stock: 1149K5ATBU43GP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the K5ATBU43GPR is determined by strict equivalence across the following critical parameters:

• Circuit configuration (SPST-NO)
• Contact rating (0.1A @ 32VDC)
• Mounting type (Surface Mount)
• Actuator type and height (Round Button, 6.10mm)
• Outline dimensions (8.40mm x 8.00mm)
• Illumination specification (LED, Blue)
• Operating force (400gf)
• Switch travel (0.50mm)
• Mechanical life rating (100,000 Cycles)
• Ingress protection class (IP40)
• Termination style (Gull Wing)
• Operating temperature range (-40°C ~ 125°C)

The K5ATBU43GP meets all these criteria and is classified as a direct substitute.

Parameter Comparison

Engineering Selection Recommendations

The K5ATBU43GP is a direct functional equivalent to the K5ATBU43GPR. Both parts share identical electrical and mechanical specifications, including circuit configuration, contact rating, actuator dimensions, and operating characteristics. The primary distinction is product status: the K5ATBU43GPR is obsolete while the K5ATBU43GP is active.

From a compliance perspective, both parts maintain REACH Unaffected status and EAR99 classification. The K5ATBU43GP carries ROHS3 Compliant certification, representing an updated compliance standard relative to the K5ATBU43GPR's RoHS Compliant designation. Both certifications satisfy current regulatory requirements for electronic components.

The K5ATBU43GP is the appropriate selection for new designs and ongoing production requirements where the K5ATBU43GPR is no longer available.

Frequently Asked Questions (FAQ)

Q: Can the K5ATBU43GP be used as a direct replacement for the K5ATBU43GPR in existing designs?

A: Yes. The K5ATBU43GP is electrically and mechanically equivalent to the K5ATBU43GPR. All functional parameters, including circuit configuration, contact rating, actuator specifications, and operating characteristics, are identical. PCB layout and assembly processes require no modification.

Q: What is the difference between RoHS Compliant and ROHS3 Compliant?

A: Both designations indicate compliance with Restriction of Hazardous Substances regulations. ROHS3 represents the current version of the standard. The K5ATBU43GP's ROHS3 Compliant status reflects updated certification against the latest regulatory requirements.

Q: Are the outline dimensions and mounting footprints identical?

A: Yes. Both parts have identical outline dimensions of 8.40mm x 8.00mm and use the same Gull Wing termination style. Surface mount assembly equipment and PCB footprints are fully compatible.

Q: What is the inventory status of these parts?

A: The K5ATBU43GPR has 783 pieces in stock as new original inventory. The K5ATBU43GP has 1072 pieces in stock as new original inventory. Availability of the active part (K5ATBU43GP) is higher.

Q: Are there any differences in moisture sensitivity or handling requirements?

A: The K5ATBU43GPR specifies MSL 2A (4 Weeks), while the K5ATBU43GP specifies MSL 5 (48 Hours). Both classifications indicate moisture sensitivity requiring controlled storage and handling. Specific storage and reflow procedures should follow the respective manufacturer datasheets.