CS11043.8F180 Equivalent & Substitute Parts

Part Overview

The CS11043.8F180 is a surface mount tactile switch manufactured by CIT Relay and Switch, featuring SPST-NO (Single Pole Single Throw - Normally Open) circuit configuration with top actuation. This component is rated for 0.05A at 50VDC and operates across a temperature range of -40°C to 85°C. The part is classified as obsolete, necessitating identification of active equivalent alternatives that maintain functional compatibility within the CS1104 series. Substitute parts must preserve critical electrical characteristics, mechanical dimensions, and mounting specifications to ensure direct replacement capability in existing designs.

Substiute Parts

CS11043.8F180

CIT Relay and SwitchIn Stock: 1273CS11043.8F180 Datasheet

Current PartRFQ

CS11043.8F160

CIT Relay and SwitchIn Stock: 819CS11043.8F160 Datasheet

MFR RecommendedRFQ

CS11043.8F260

CIT Relay and SwitchIn Stock: 686CS11043.8F260 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the CS11043.8F180 are identified within the CS1104 series based on strict electrical and mechanical parameter compatibility. All substitute candidates maintain identical specifications across the following critical parameters: circuit configuration (SPST-NO), contact rating (0.05A @ 50VDC), mounting type (surface mount), outline dimensions (4.50mm x 4.50mm), actuator height (3.80mm), switch travel (0.25mm), operating temperature range (-40°C to 85°C), actuator material (Polyamide PA46/Nylon 4/6), termination style (gull wing), and compliance certifications (RoHS compliant, MSL 1).

The primary variable distinguishing substitute parts is operating force, measured in gram-force (gf). The main part specifies 180gf operating force. Substitute parts CS11043.8F160 and CS11043.8F260 provide alternative operating force specifications of 160gf and 260gf respectively, while maintaining all other electrical and mechanical parameters. These alternatives are classified as active products, ensuring continued availability and manufacturing support.

Parameter Comparison

Engineering Selection Recommendations

The CS11043.8F180 is classified as obsolete and should be replaced with an active equivalent from the CS1104 series. Both substitute parts, CS11043.8F160 and CS11043.8F260, are manufactured by CIT Relay and Switch and maintain active product status, ensuring continued supply chain availability and manufacturing support.

Selection between CS11043.8F160 and CS11043.8F260 depends on application-specific actuation force requirements. The CS11043.8F160 provides reduced operating force (160gf) compared to the original specification, while CS11043.8F260 provides increased operating force (260gf). All three parts maintain identical electrical ratings, mechanical dimensions, mounting characteristics, and environmental compliance certifications.

Both substitute parts are RoHS compliant with MSL 1 rating, matching the compliance profile of the original part. No design modifications are required for PCB layout or assembly processes, as all mechanical and electrical parameters remain constant across the series variants.

Frequently Asked Questions (FAQ)

Q: Can CS11043.8F160 or CS11043.8F260 be used as direct replacements for CS11043.8F180?

A: Both parts are direct mechanical and electrical replacements within the CS1104 series. All critical parameters including circuit configuration, contact rating, mounting type, outline dimensions, and operating temperature range are identical. The only difference is operating force specification.

Q: What is the significance of the operating force difference between the three parts?

A: Operating force, measured in gram-force (gf), determines the tactile feedback and actuation pressure required to engage the switch. CS11043.8F160 requires 160gf, the main part requires 180gf, and CS11043.8F260 requires 260gf. Selection depends on the application's user interface requirements and mechanical design constraints.

Q: Are there any packaging or handling differences between these parts?

A: The main part CS11043.8F180 is supplied in Cut Tape (CT) packaging. Packaging information for substitute parts was not provided in the available specifications. Verify packaging requirements with the supplier for procurement purposes.

Q: Do these parts require different PCB footprints or assembly procedures?

A: No. All three parts share identical outline dimensions (4.50mm x 4.50mm), actuator height (3.80mm), termination style (gull wing), and mounting type (surface mount). PCB footprints and assembly procedures remain unchanged.

Q: What is the inventory status for substitute parts?

A: CS11043.8F160 has 766 pieces in stock and CS11043.8F260 has 670 pieces in stock, both classified as new original inventory. The obsolete main part CS11043.8F180 has 1196 pieces available.

Q: Are all three parts RoHS compliant?

A: Yes. CS11043.8F180, CS11043.8F160, and CS11043.8F260 are all RoHS compliant with MSL 1 (unlimited moisture sensitivity level), ensuring compliance with environmental and regulatory requirements.