B23EP Toggle Switch DPDT Equivalent & Substitute Parts

Part Overview

The B23EP is an active production toggle switch manufactured by NKK Switches, configured as a Double Pole Double Throw (DPDT) On-Off-On switch. This through-hole mounted component is designed for applications requiring 0.4VA switching capacity at 28V AC/DC with a flatted brass nickel-plated actuator. The component is in active product status with 1024 units in current inventory. Substitute parts are identified when original stock becomes unavailable or when design requirements necessitate alternative electrical or mechanical specifications within compatible parameter ranges.

Substiute Parts

B23EP

NKK SwitchesIn Stock: 1058B23EP Datasheet

Current PartRFQ

T203SH9CQE

C&KIn Stock: 1049T203SH9CQE Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The T203SH9CQE manufactured by C&K is identified as a substitute based on the following critical parameters:

Matching Parameters (Substitution Basis):

• Circuit configuration: DPDT
• Switch function: On-Off-On
• Mounting type: Through Hole
• Termination style: PC Pin
• Operating temperature range: -30°C to 85°C
• RoHS3 compliance
• Unthreaded bushing design
• Epoxy sealed terminals

Differing Parameters (Design Considerations):

• Current rating: 2A (AC/DC) versus 0.4VA
• Voltage rating - AC: 120V versus 28V
• Voltage rating - DC: 28V (matching)
• Actuator type: Standard Round versus Flatted
• Actuator length: 9.40mm versus 10.00mm
• Electrical life: 30,000 cycles versus 50,000 cycles
• Actuator material: Brass Chrome Plated versus Brass Nickel Plated
• REACH status: Affected versus Unaffected

Parameter Comparison

Engineering Selection Recommendations

Both B23EP and T203SH9CQE are active production components with ROHS3 compliance. Selection between these parts is determined by application-specific electrical requirements and mechanical constraints:

B23EP Selection Criteria:

• Applications operating at 28V AC/DC with maximum 0.4VA switching load
• Designs requiring flatted actuator geometry for specific panel cutout or operator interface
• Systems requiring 50,000 cycle electrical life specification
• REACH unaffected component requirement

T203SH9CQE Selection Criteria:

• Applications capable of utilizing higher current rating (2A) and higher AC voltage rating (120V)
• Designs compatible with standard round actuator geometry
• Systems where 30,000 cycle electrical life is sufficient
• REACH affected component acceptable in application

Both components share identical DC voltage rating (28V), circuit configuration (DPDT), switch function (On-Off-On), operating temperature range (-30°C to 85°C), and termination style (PC Pin through-hole). Mechanical differences in actuator type and length require panel cutout and operator interface verification during substitution.

Frequently Asked Questions (FAQ)

Q: Can T203SH9CQE directly replace B23EP in existing designs?

A: Direct replacement requires verification of three factors: (1) panel cutout compatibility with standard round actuator versus flatted actuator geometry, (2) application current and voltage requirements within T203SH9CQE ratings (2A, 120V AC), and (3) acceptance of 30,000 cycle electrical life versus 50,000 cycles. Both components share identical DPDT configuration, On-Off-On function, and -30°C to 85°C operating range.

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

A: B23EP is rated 0.4VA at 28V AC/DC. T203SH9CQE is rated 2A at 120V AC and 28V DC. The T203SH9CQE provides higher current and AC voltage capacity. Both are suitable for 28V DC applications. Application load requirements determine which part is appropriate.

Q: Are there mechanical compatibility issues?

A: Yes. B23EP features a flatted actuator (10.00mm length) while T203SH9CQE has a standard round actuator (9.40mm length). Panel cutout dimensions and operator interface design must accommodate the different actuator geometries. Verify mechanical fit before substitution.

Q: Do both parts meet the same compliance standards?

A: Both B23EP and T203SH9CQE are ROHS3 compliant. B23EP is REACH unaffected while T203SH9CQE is REACH affected. Regulatory requirements for the end application determine compliance acceptability.

Q: What is the difference in electrical life rating?

A: B23EP is rated for 50,000 switching cycles while T203SH9CQE is rated for 30,000 cycles. Applications with high cycle count requirements should prioritize B23EP. For lower cycle applications, T203SH9CQE is acceptable.

Q: Are the packaging formats different?

A: Yes. B23EP is supplied in bulk packaging while T203SH9CQE is supplied in tray packaging. Procurement and assembly processes may require adjustment based on packaging format.