KS-01Q-01 Equivalent & Substitute Parts

Part Overview

The KS-01Q-01 is a pushbutton switch manufactured by E-Switch, featuring SPST-NO (Single Pole Single Throw - Normally Open) circuit configuration with a 10mA DC current rating and 35V DC voltage rating. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing design and procurement requirements. The switch utilizes through-hole mounting with PC pin termination and a black round button actuator, designed for applications requiring momentary contact operation.

Substiute Parts

KS-01Q-01

E-SwitchIn Stock: 733KS-01Q-01 Datasheet

Current PartRFQ

330.02E11.08BLK

E-SwitchIn Stock: 793330.02E11.08BLK Datasheet

MFR RecommendedRFQ

ESE-20C343

Panasonic Electronic ComponentsIn Stock: 1928ESE-20C343 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the KS-01Q-01 are identified based on strict electrical and mechanical compatibility criteria. The primary substitution parameters are:

Electrical Compatibility Requirements:

• Circuit configuration must be SPST-NO
• Switch function must be Off-Mom (momentary operation)
• Current rating must equal or exceed 10mA DC
• Voltage rating must equal or exceed 35V DC

Mechanical Compatibility Requirements:

• Mounting type must be Through Hole
• Termination style must be PC Pin
• Actuator type must be button configuration

Compliance Requirements:

• RoHS3 compliance required
• MSL rating of 1 (Unlimited) required

The identified substitute parts meet these criteria while offering improved specifications in terms of current capacity, voltage rating, mechanical life, and electrical life compared to the obsolete KS-01Q-01.

Parameter Comparison

Engineering Selection Recommendations

330.02E11.08BLK (E-Switch) is the primary recommended substitute. This part maintains identical circuit configuration and switch function while providing superior electrical and mechanical performance. The 25mA current rating and 50V voltage rating exceed the KS-01Q-01 requirements, offering design margin. The 1,000,000 cycle mechanical and electrical life ratings represent a 4x improvement over the original part. Active product status ensures long-term availability and supply chain stability. Operating temperature range of -20°C to 70°C covers most standard industrial applications, though the upper limit is 15°C lower than the original specification.

ESE-20C343 (Panasonic Electronic Components) serves as an alternative substitute. This part meets all electrical and mechanical compatibility requirements with a significantly higher 100mA current rating. However, the 14V voltage rating is substantially lower than the KS-01Q-01 specification and may not be suitable for applications requiring the full 35V rating. The square button actuator differs from the original round configuration. Active product status and ROHS3 compliance are confirmed. Operating temperature range and mechanical/electrical life specifications are not provided for this component.

Both substitute parts are ROHS3 compliant and carry MSL rating 1 (Unlimited), maintaining compliance with the original specification.

Frequently Asked Questions (FAQ)

Q: Can the 330.02E11.08BLK directly replace the KS-01Q-01 in all applications?

A: The 330.02E11.08BLK meets all electrical and mechanical compatibility criteria for SPST-NO momentary switch applications. However, the operating temperature upper limit is 70°C versus 85°C for the original part. Verify that your application does not require sustained operation above 70°C.

Q: What is the significance of the current rating difference between these parts?

A: The KS-01Q-01 is rated for 10mA DC, while the 330.02E11.08BLK is rated for 25mA DC and the ESE-20C343 for 100mA DC. Higher current ratings indicate the switch can safely handle greater electrical loads. Substitutes with higher ratings are compatible with the original application and provide additional design margin.

Q: Why does the ESE-20C343 have a lower voltage rating than the KS-01Q-01?

A: The ESE-20C343 is rated for 14V DC maximum, which is below the KS-01Q-01 specification of 35V DC. This part is suitable only for applications operating at 14V or lower. Do not use this substitute in circuits requiring the full 35V rating.

Q: What does "Product Status: Active" mean for substitute parts?

A: Active status indicates the manufacturer currently produces and supports the component. This ensures availability for procurement, ongoing technical support, and supply chain continuity, unlike the obsolete KS-01Q-01.

Q: Are there mechanical differences between round and square button actuators?

A: The KS-01Q-01 features a round button actuator, while the ESE-20C343 has a square button. This difference may affect panel cutout dimensions, user interface appearance, and tactile feedback characteristics. Verify mechanical fit and user interaction requirements before substitution.

Q: Do all substitute parts meet RoHS3 compliance?

A: Yes. Both the 330.02E11.08BLK and ESE-20C343 are ROHS3 compliant, matching the original KS-01Q-01 specification. All parts carry MSL rating 1 (Unlimited).