PVB4 OA 300 NS LFS Equivalent & Substitute Parts

Part Overview

The PVB4 OA 300 NS LFS is a pushbutton switch manufactured by C&K, featuring SPDT (Single Pole Double Throw) circuit configuration with a current rating of 100mA at 14V DC. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system maintenance and new design implementations. The switch employs surface mount technology with gull wing termination and is rated for 100,000 electrical cycles under standard operating conditions.

Substiute Parts

PVB4 OA 300 NS LFS

C&KIn Stock: 1172PVB4 OA 300 NS LFS Datasheet

Current PartRFQ

G3B15AB-S

NKK SwitchesIn Stock: 830G3B15AB-S Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PVB4 OA 300 NS LFS is determined by the following critical parameters:

• Circuit Configuration: SPDT topology must be maintained for functional equivalence
• Mounting Technology: Surface mount with gull wing termination required
• Switch Function: On-momentary operation must be preserved
• Electrical Ratings: Voltage and current ratings must meet or exceed the original specification (14V DC, 100mA minimum)
• Environmental Compliance: RoHS compliance and REACH unaffected status required for regulatory alignment
• Termination Compatibility: Gull wing leads ensure PCB footprint compatibility

The G3B15AB-S from NKK Switches satisfies these substitution criteria through matching SPDT circuit configuration, surface mount gull wing termination, on-momentary function, and superior electrical ratings (28V DC, 0.4VA capacity). Both components maintain RoHS and REACH compliance, ensuring regulatory continuity.

Parameter Comparison

Engineering Selection Recommendations

The G3B15AB-S represents a functionally qualified substitute for the obsolete PVB4 OA 300 NS LFS based on the following engineering criteria:

Regulatory Compliance: Both components maintain REACH unaffected status and RoHS compliance (ROHS3 for G3B15AB-S represents enhanced compliance). This ensures continuity with current environmental and hazardous substance regulations.

Electrical Performance: The G3B15AB-S provides superior voltage and current handling capacity (28V DC versus 14V DC; 0.4VA versus 100mA), ensuring the substitute operates within safe margins when applied to circuits designed for the original component.

Mechanical Compatibility: Gull wing termination on both components ensures PCB footprint compatibility. Actuator geometry differs (square versus round plunger), requiring mechanical clearance verification in the application enclosure.

Product Lifecycle Status: The G3B15AB-S is active production status, ensuring long-term availability and supply chain stability compared to the obsolete PVB4 OA 300 NS LFS.

Operational Lifespan Consideration: The original component specifies 100,000 electrical cycles versus 50,000 cycles for the substitute. Applications requiring extended cycle life should evaluate this parameter against actual duty cycle requirements.

Frequently Asked Questions (FAQ)

Q: Can the G3B15AB-S directly replace the PVB4 OA 300 NS LFS without PCB modifications?

A: Gull wing termination on both components ensures electrical and mechanical compatibility at the PCB level. However, the actuator geometry differs (square versus round plunger), requiring verification that the application enclosure accommodates the round plunger design without interference.

Q: What is the significance of the voltage rating difference (14V versus 28V)?

A: The G3B15AB-S 28V DC rating exceeds the original 14V specification, providing operational margin. The substitute is suitable for circuits operating at or below 14V DC. Circuits designed for the full 28V capacity of the substitute do not require derating.

Q: Does the electrical life difference (100,000 versus 50,000 cycles) affect substitution validity?

A: The G3B15AB-S provides 50,000 cycle rating compared to the original 100,000 cycles. Applications with duty cycles below 50,000 cycles are unaffected. High-cycle applications should evaluate whether the reduced cycle rating aligns with system lifetime requirements.

Q: Are there packaging considerations for the G3B15AB-S?

A: The G3B15AB-S is supplied in tube packaging, whereas the original component packaging is not specified. Verify that tube packaging meets your procurement, storage, and handling requirements.

Q: How do the operating temperature ranges compare?

A: The G3B15AB-S operates across -30°C to 85°C versus the original -40°C to 80°C. The substitute provides slightly higher upper temperature capability but does not extend to the original -40°C lower limit. Applications operating below -30°C require evaluation against the substitute's lower temperature boundary.

Q: What does "Process Sealed" mean for the G3B15AB-S?

A: Process sealed indicates the switch mechanism is sealed during manufacturing to prevent contamination ingress. This feature enhances reliability in environments with particulate or moisture exposure, complementing the IP40 ingress protection rating of the original component.