PBSS3540E Nexperia Integrated Circuit (SOT23 (3-Pin)) In Stock
Nexperia PBSS3540E is a PNP bipolar transistor rated at 0.5 A collector current and 40 V breakdown voltage, with 300 MHz transition frequency and HFE of 40, housed in a compact 3-pin SMPAK package for small-signal switching and amplification.
- Manufacturer
- Nexperia
- Package
- SOT23 (3-Pin)
- Pin Count
- 3
- Lifecycle
- OBSOLETE
- Datasheet
- PBSS3540E Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- PNP small-signal transistor rated 0.5 A and 40 V for versatile low-power switching applications
- 300 MHz transition frequency enabling high-speed signal amplification in RF and audio circuits
- Compact 3-pin SMPAK package allowing minimal PCB footprint in space-sensitive designs
- 260°C peak reflow compatible tin terminal finish for standard lead-free SMD assembly processes
Applications
The PBSS3540E is suited for small-signal switching and low-level amplification in consumer electronics, portable devices, and industrial sensor front-ends. Its 300 MHz transition frequency and 40 V breakdown make it appropriate for audio preamplifiers, switching regulators, and signal conditioning circuits where a PNP transistor with 0.5 A current capability is required. The SMPAK package enables compact PCB designs in wearables, IoT modules, and battery-powered equipment.
Specifications
| Date Of Intro | 2017-02-01 |
| YTEOL | 0 |
| JESD-609 Code | e3 |
| Peak Reflow Temperature (Cel) | 260 |
| Terminal Finish | TIN |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | SOT23 (3-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What are the key electrical ratings of the PBSS3540E PNP transistor?
The PBSS3540E is rated for a maximum collector current of 0.5 A, a collector-emitter breakdown voltage of 40 V, and a DC current gain (HFE) of 40. Its transition frequency of 300 MHz allows use in signal amplification and high-frequency switching applications, while the 3-pin SMPAK package keeps the PCB footprint minimal for portable and space-constrained designs.
In which circuit topologies does the 300 MHz transition frequency of the PBSS3540E provide a meaningful advantage?
The 300 MHz transition frequency of the PBSS3540E provides meaningful advantage in audio amplifier stages, RF envelope detectors, and high-speed digital-to-analog interface circuits where the PNP device must faithfully amplify or switch signals above 10 MHz. Compared to general-purpose PNP transistors with transition frequencies below 100 MHz, the PBSS3540E maintains gain at higher frequencies while operating within its 0.5 A and 40 V ratings.
Is the PBSS3540E suitable for designs requiring lead-free assembly at standard reflow temperatures?
Yes, the PBSS3540E features a tin terminal finish with a peak reflow temperature rating of 260°C for a maximum time of 30 seconds, which is fully compatible with standard SAC305 lead-free solder reflow profiles used in modern SMD assembly. The JESD-609 e3 classification confirms lead-free compliance, and the 3-pin SMPAK package is stable throughout the 260°C reflow cycle without deformation or bond degradation.
How does the PBSS3540E compare to a general-purpose SOT-23 PNP transistor for a 40 V battery management switch?
For a 40 V battery management switch requiring up to 0.5 A, the PBSS3540E matches the voltage requirement exactly while adding a 300 MHz transition frequency that standard general-purpose SOT-23 PNP devices typically do not meet. The SMPAK (SOT-23 equivalent) package allows direct footprint substitution in many designs, making PBSS3540E a drop-in upgrade in circuits where switching speed above 100 MHz is needed alongside the 40 V breakdown and 0.5 A current rating.
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