CAS-D20B1 Equivalent & Substitute Parts

Part Overview

The CAS-D20B1 is a slide switch manufactured by Nidec Components Corporation, configured as SPDT x 2 (dual single-pole double-throw) for surface mount applications. This component is rated for 100mA DC at 6V with a flush actuator and gold-plated copper alloy contacts. The part is currently active in production with 1044 units in stock.

Finding equivalent and substitute parts is necessary when the CAS-D20B1 becomes unavailable, when alternative packaging formats are required, or when design modifications necessitate different electrical or mechanical specifications within acceptable operating parameters.

Substiute Parts

CAS-D20B1

Nidec Components CorporationIn Stock: 1072CAS-D20B1 Datasheet

Current PartRFQ

ES01MSABE

C&KIn Stock: 1962ES01MSABE Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CAS-D20B1 is determined by the following critical parameters:

• Circuit Configuration: The main part features SPDT x 2 (dual configuration). Substitute parts must support equivalent switching logic.
• Current and Voltage Ratings: The 100mA DC at 6V specification establishes the minimum electrical capacity required. Substitutes must meet or exceed these ratings.
• Mounting and Termination: Surface mount with gull wing termination is mandatory for PCB compatibility.
• Contact Material and Finish: Gold-plated contacts ensure reliability and corrosion resistance.
• Operating Temperature: The -40°C to 85°C range defines the environmental operating envelope.
• Moisture Sensitivity: MSL 1 classification indicates no moisture sensitivity restrictions.

The ES01MSABE from C&K is identified as a substitute based on compatible surface mount configuration, gull wing termination, gold-plated contacts, and electrical ratings that exceed the CAS-D20B1 requirements. However, the ES01MSABE is configured as SPDT (single configuration) rather than SPDT x 2, which represents a functional difference requiring design consideration.

Parameter Comparison

Engineering Selection Recommendations

Both the CAS-D20B1 and ES01MSABE are active products with current manufacturing status. The ES01MSABE provides higher electrical ratings (20V DC, 0.4VA) and extended mechanical life (40,000 cycles versus 2,000 cycles), making it suitable for applications requiring greater durability and voltage headroom.

The ES01MSABE carries RoHS3 compliance and REACH Affected status, compared to the CAS-D20B1 which is REACH Unaffected. Both parts are MSL 1 classified and carry EAR99 ECCN designation.

The primary design consideration is the circuit configuration difference: the CAS-D20B1 provides dual SPDT switching (SPDT x 2), while the ES01MSABE provides single SPDT switching. This difference requires circuit-level evaluation to determine functional equivalence for the intended application.

Frequently Asked Questions (FAQ)

Q: Can the ES01MSABE directly replace the CAS-D20B1 in all applications?

A: Direct replacement depends on circuit requirements. The ES01MSABE is a single SPDT switch, while the CAS-D20B1 is dual SPDT (SPDT x 2). If the application requires dual independent switching paths, the ES01MSABE cannot provide equivalent functionality without circuit redesign.

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

A: The ES01MSABE exceeds the CAS-D20B1 in voltage rating (20V versus 6V DC) and current capacity (0.4VA versus 100mA). The ES01MSABE also provides significantly longer electrical life (40,000 cycles versus 2,000 cycles).

Q: Are there packaging differences?

A: Yes. The CAS-D20B1 is supplied in Bulk packaging, while the ES01MSABE is supplied in Tape & Reel (TR) format. This affects handling, storage, and assembly processes.

Q: What is the temperature operating range difference?

A: The CAS-D20B1 operates from -40°C to 85°C, while the ES01MSABE operates from -30°C to 85°C. The CAS-D20B1 supports lower temperature operation by 10°C.

Q: Are both parts RoHS compliant?

A: The ES01MSABE is RoHS3 compliant. The CAS-D20B1 compliance status is not specified in the provided data.

Q: What is the difference in actuator design?

A: The CAS-D20B1 features a flush actuator, while the ES01MSABE has a standard actuator with 3.07mm length. The ES01MSABE also includes right-angle mounting capability. Actuator height may affect PCB layout and enclosure design.