BCX18
25 V 500 mA PNP general-purpose transistor in a compact surface-mount package
Key details
| Part Number | BCX18 |
|---|---|
| Manufacturer | Nexperia |
| Category | Bipolar Transistor |
| Lifecycle Status | Production |
| Series | BCX17 / BCX18 |
| Package / Case | 3-pin SOT23 |
| Pin Count | 3 |
| Operating Temperature | Up to +150°C junction; see datasheet |
| Last Verified | 2026-07-26 |
Part information
BCX18 Overview
BCX18 is a Nexperia 25 V 500 mA PNP general-purpose transistor in a compact surface-mount package supplied in 3-pin SOT23. This page uses the exact orderable code because package, grade, temperature and option suffixes can change compatibility.
Key Technical Specifications
| Transistor Polarity | PNP |
|---|---|
| Collector-Emitter Voltage | -25 V |
| Collector Current | -500 mA |
| DC Current Gain | 100 to 600 |
| Qualification | AEC-Q101 qualified family |
Package and Ordering Notes
The listed package is 3-pin SOT23 with 3 pins, leads, lands or contacts. The featured image is a generic package illustration for form-factor identification and is not an actual date-code or lot photograph. The part or family is listed by Nexperia as Production at the verification date.
Sourcing Guidance
Confirm current factory status, exact orderable suffix, packing format and lead time for BCX18. Do not substitute a nearby family code without checking all electrical and package limits.
For an accurate quotation, include the full MPN, target quantity, acceptable date-code range, packaging format and destination. Icearth can help review traceability documents, label photos and electrical/package alignment before order placement.
Manufacturer Documentation
Technical values were checked against Nexperia documentation. Use the linked datasheet as the controlling source and re-check revisions before PCB release or firmware qualification.
BCX18 FAQ
What is BCX18?
BCX18 is a Nexperia 25 V 500 mA PNP general-purpose transistor in a compact surface-mount package. It belongs to the BCX17 / BCX18 series.
What are the key specifications of BCX18?
Transistor Polarity is PNP, and Collector-Emitter Voltage is -25 V. Use the manufacturer datasheet for limits and test conditions.
What package does BCX18 use?
BCX18 uses 3-pin SOT23 with 3 pins or leads. Verify the exact footprint and packing suffix before PCB or purchasing release.
Is BCX18 still in production?
BCX18 was listed in the manufacturer’s current Production or active product catalog when verified on 2026-07-26. Confirm factory status and lead time before ordering.
What should be checked before sourcing BCX18?
Confirm the complete MPN, electrical ratings, package, temperature grade and packing format. Possible alternatives include BCX17 for a higher voltage rating after circuit verification, but compatibility must be checked independently.
Lifecycle and sourcing review
Lifecycle information is shown for reference. Confirm current manufacturer documentation, availability and technical suitability before purchase.
Confirm current factory status, exact orderable suffix, packing format and lead time for BCX18. Do not substitute a nearby family code without checking all electrical and package limits.
Potential alternative part numbers
Verify package, pinout, voltage, firmware behavior and qualification before substitution.