NKK Switches B12LP/328 Toggle Switch SPDT Equivalent & Substitute Parts

Part Overview

The NKK Switches B12LP/328 is an active-status toggle switch with SPDT (Single Pole Double Throw) circuit configuration, rated for 0.4VA at 28V AC/DC. This through-hole mounted component features a locking lever actuator and is designed for applications requiring reliable switching in the -30°C to 85°C operating temperature range. The part is ROHS3 compliant and carries an electrical life rating of 50,000 cycles. Substitute parts are identified when packaging, termination method, or specific feature sets differ while maintaining identical electrical and mechanical switching characteristics.

Substiute Parts

B12LP/328

NKK SwitchesIn Stock: 1072B12LP/328 Datasheet

Current PartRFQ

B12LB

NKK SwitchesIn Stock: 1238B12LB Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the B12LP/328 is determined by strict equivalence across the following critical parameters:

• Circuit configuration (SPDT)
• Switch function (On-On)
• Current and voltage ratings (0.4VA at 28V AC/DC)
• Mounting method (Through Hole)
• Actuator type and length (Locking Lever, 12.50mm)
• Termination style (PC Pin)
• Operating temperature range (-30°C to 85°C)
• Electrical life (50,000 cycles)
• RoHS compliance status (ROHS3)

The B12LP/328 is packaged in Bulk format with low temperature lubricant as a feature. Substitute parts maintain identical electrical and mechanical specifications while differing in packaging format or specific terminal treatment methods. All substitute parts listed are manufactured by NKK Switches and carry active product status.

Parameter Comparison

Engineering Selection Recommendations

Both the B12LP/328 and B12LB are active-status components manufactured by NKK Switches with identical ROHS3 compliance and REACH unaffected status. Selection between these parts is based on packaging and supply chain requirements rather than electrical or mechanical performance differences. The B12LP/328 is supplied in Bulk packaging, while the B12LB is supplied in Tray packaging. Both parts meet the same electrical specifications, temperature operating range, and cycle life requirements. Component selection should be driven by procurement format preference and inventory management practices.

Frequently Asked Questions (FAQ)

Q: Can B12LB be used as a direct replacement for B12LP/328?

A: Yes. Both parts are electrically and mechanically identical SPDT toggle switches with matching current ratings (0.4VA), voltage ratings (28V AC/DC), actuator specifications (locking lever, 12.50mm), and operating temperature range (-30°C to 85°C). The difference is packaging format: B12LP/328 is supplied in Bulk, while B12LB is supplied in Tray.

Q: What determines substitution eligibility for this switch series?

A: Substitution is determined by equivalence in circuit configuration (SPDT), switch function (On-On), current and voltage ratings, mounting method (through hole), actuator type and dimensions, termination style (PC pin), operating temperature range, electrical life (50,000 cycles), and RoHS compliance status.

Q: Are there any compliance or certification differences between these parts?

A: No. Both the B12LP/328 and B12LB carry identical ROHS3 compliance, REACH unaffected status, and active product status. Both are classified under ECCN EAR99 and HTSUS 8536.50.9065.

Q: What is the difference between Bulk and Tray packaging?

A: Bulk packaging (B12LP/328) and Tray packaging (B12LB) represent different supply formats for the same component. Selection depends on procurement volume, handling requirements, and inventory management practices. Both formats contain the identical switch component.

Q: Can these switches be used interchangeably in PCB assembly?

A: Yes. Both parts have identical through-hole mounting specifications, PC pin termination, and physical dimensions. They are mechanically and electrically interchangeable in circuit applications.