Bulgin
Bulgin S3900BA SWITCH TOGGLE SPST 20A 125V
Toggle Switch · Bulgin
MPNS3900BA
Bulgin S3900BA SWITCH TOGGLE SPST 20A 125V
- Professional sourcingVetted supply chain with documented traceability
- Genuine partsDocumented traceability on every shipment
- ESD-safe handlingOriginal packaging, moisture controlled
- Worldwide shippingConsolidated freight to 100+ countries
Product Overview
Product narrative for the Bulgin part S3900BA. Read this before you compare alternates or open an RFQ.
Bulgin S3900BA SWITCH TOGGLE SPST 20A 125V
Bulgin S3900BA SWITCH TOGGLE SPST 20A 125V
Design Resources
Tutorial and application reading tied to S3900BA. These are editorial guides on this site, not manufacturer PDFs.
GUIDELR44 Battery Equivalent Guide for Electronic DevicesRead guide →GUIDEWhat Is an Autopilot Control System? Aircraft Sensors, Actuators, and Flight Control Electronics ExplainedRead guide →GUIDEIndustrial Electronic Components: Types, Applications, and Sourcing GuideRead guide →GUIDECircuit Board Components: A Practical Guide to Identification, Functions, and LabelsRead guide →GUIDEBNC to BNC Cable: What It Is, How It Works, and How to Choose the Right OneRead guide →GUIDERJ11 vs RJ12 vs RJ45: Modular Connector Differences ExplainedRead guide →
Frequently Asked Questions
FAQ for this toggle switch (S3900BA). Focused on purchasing and design-check questions, not full datasheet reprints.
What is S3900BA?
Bulgin S3900BA SWITCH TOGGLE SPST 20A 125V
What type of component is S3900BA?
S3900BA is a Toggle Switch from Bulgin.
Is S3900BA in stock at MOZ Electronics?
S3900BA is listed as in stock. Order online when a price is shown, or submit an RFQ for volume pricing and lead time.
Sourcing desk
Need volume pricing, a specific date code, or an alternative part?
Send us the quantity and target date — a sourcing specialist replies within one business day.