Nexperia USA Inc. PBSS5240T-QVL
- Part No.:
- PBSS5240T-QVL
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Bipolar Transistors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
PBSS5240T-QVL.pdf
- Description:
- TRANS PNP 40V 2A TO-236AB
- Quantity:
- Payment:

- Shipping:

Inventory:4,288
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
PBSS5240T-QVL from Nexperia is a PNP low VCE(sat) transistor in SOT23 package, rated for −40 V VCEO, −2 A IC, and 140–220 mΩ RCE(sat) at −500 mA/−50 mA drive; used in automotive-grade battery management and DC/DC converter switching circuits.
For engineers reviewing the PBSS5240T-QVL datasheet, PBSS5240T-QVL pinout, PBSS5240T-QVL application, or PBSS5240T-QVL equivalent, key selection criteria include verified AEC-Q101 qualification, low saturation resistance under high-current drive, thermal performance on FR4 PCB, and direct PNP complement pairing with PBSS4240T-Q.
Technical Context
This PNP bipolar transistor operates as a high-efficiency switch in supply-line and load-control paths, leveraging low VCE(sat) (≤350 mV at −2 A/−200 mA) and high DC current gain (hFE = 100–180 at −2 A). Its design targets thermally constrained automotive modules where reduced heat generation improves long-term reliability.
Qualified to AEC-Q101, it supports operation from −65 °C to +150 °C junction temperature, with thermal resistance Rth(j-a) of 260 K/W when mounted on FR4 with 1 cm² collector pad - enabling stable performance in battery-powered motor drivers and strobe flash units without active cooling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | −40 V: Maximum safe collector-emitter voltage with base open; defines maximum supply rail compatibility in PNP high-side switching. |
| IC | −2 A continuous: Rated collector current enables direct driving of lamps, small motors, or power rails in portable equipment. |
| RCE(sat) | 140–220 mΩ at −500 mA/−50 mA: Low saturation resistance minimizes conduction loss and self-heating in battery-critical applications. |
| hFE | 100–180 at −2 A/−200 mA: Sufficient DC gain ensures reliable saturation with moderate base drive, reducing MCU GPIO loading. |
| Tj max | +150 °C: Junction temperature rating supports under-hood automotive use and sustained operation in sealed enclosures. |
| AEC-Q101 | Qualified: Meets stress-test requirements for discrete semiconductors in automotive electronics per AEC standard. |
Pinout & Package
Package: SOT23 (TO-236AB), surface-mounted plastic package, 2.9 mm × 1.3 mm × 1.0 mm body, 1.9 mm lead pitch, single-sided copper FR4 mounting.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Base (B) | Control input requiring −50 mA typical drive for full saturation at −500 mA load; polarity-sensitive for PNP biasing. |
| 2 | Emitter (E) | Common reference terminal connected to higher-potential rail (e.g., battery +); carries full load current. |
| 3 | Collector (C) | Switched output node tied to load; thermally enhanced via PCB copper pad (1 cm² recommended for 260 K/W Rth(j-a)). |
Key Features
| Feature | Design Value |
|---|---|
| Low VCE(sat) | ≤350 mV at −2 A/−200 mA drive: Reduces power dissipation to ≤700 mW, easing thermal design in space-constrained modules. |
| AEC-Q101 qualification | Stress-tested for automotive reliability: Validated for temperature cycling, HTRB, HTGB, and ESD per AEC-Q101 Rev G. |
| High current capability | −2 A continuous / −3 A peak: Supports robust load switching in motor drivers and DC/DC converter synchronous rectification. |
| Thermal optimization | Rth(j-a) = 260 K/W with 1 cm² collector pad: Enables >1.5× power handling vs. standard footprint, critical for battery-powered tools. |
Applications
| Battery Management Systems | Automotive Lighting Control |
|---|---|
|
Use Scenario: High-side switching of Li-ion battery protection circuits and charge path isolation. IC Role / Device Role / Timing Role: PNP transistor acting as reverse-polarity and overcurrent protection switch in BMS front-end. Use Value: Low RCE(sat) limits voltage drop across switch during charging, preserving battery efficiency and minimizing thermal stress on PCB traces. |
Use Scenario: Strobe flash unit and LED headlamp dimming control in passenger vehicles. IC Role / Device Role / Timing Role: Fast-turn-on PNP switch delivering pulsed current to xenon/LED loads with minimal delay. Use Value: Verified AEC-Q101 qualification ensures operational stability across −40 °C to +125 °C ambient, meeting OEM lighting module requirements. |
| DC/DC Converter Power Stage | Portable Motor Drivers |
|
Use Scenario: Synchronous rectifier or high-side switch in non-isolated buck converters for infotainment supplies. IC Role / Device Role / Timing Role: Low-loss PNP switch replacing Schottky diodes to improve conversion efficiency above 85%. Use Value: 140–220 mΩ RCE(sat) reduces conduction loss by up to 40% vs. legacy transistors, directly increasing system efficiency. |
Use Scenario: Driving brushed DC motors in cordless power tools and medical handheld devices. IC Role / Device Role / Timing Role: Load-switching transistor controlling motor direction and enable state in H-bridge auxiliary paths. Use Value: −3 A peak current rating accommodates motor startup surges without secondary protection, simplifying BOM. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PNP low-VCE(sat) switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor NSS40501LT1G | VCEO = −40 V, IC = −1.5 A, RCE(sat) = 200–320 mΩ at −500 mA; SOT23, AEC-Q101 qualified | Lower current rating limits use in >1.5 A motor or flash loads; identical thermal footprint but higher RCE(sat) | Select when lower cost is prioritized over peak current margin and saturation loss. |
| Diodes Incorporated DXT5240P-13 | VCEO = −40 V, IC = −2 A, RCE(sat) = 160–250 mΩ at −500 mA; SOT23, AEC-Q101 qualified | Nearly identical specs but slightly higher RCE(sat); same pinout and thermal profile | Choose for dual-sourcing flexibility where minor RCE(sat) increase is acceptable. |
Compared with PBSS5240T-QVL, NSS40501LT1G trades 0.5 A current headroom for broader distributor availability, while DXT5240P-13 offers near-equivalent performance with alternate supply-chain resilience - both retain AEC-Q101 compliance and SOT23 compatibility.
Availability
PBSS5240T-QVL is available at Aetrix Electronics and suitable for automotive lighting control, battery management systems, and portable motor driver designs requiring stable component supply, AEC-Q101 assurance, and low-loss PNP switching.
Supply support for PBSS5240T-QVL includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Nexperia is a global semiconductor expert focused on essential efficiency technologies, delivering high-performance logic, discrete, and MOSFET solutions for automotive, industrial, and consumer markets.
PBSS5240T-QVL belongs to Nexperia's Automotive-qualified Low VCE(sat) Transistor product line, engineered specifically for energy-efficient, thermally robust switching in safety-critical and battery-sensitive automotive subsystems.
FAQ
Is PBSS5240T-QVL pin-compatible with its NPN complement PBSS4240T-Q?
Yes - both share identical SOT23 pinout (1: Base, 2: Emitter, 3: Collector), enabling symmetrical PCB layout for complementary PNP/NPN switching stages. However, polarity reversal means emitter and collector connections must be swapped in circuit topology to maintain correct biasing.
What is the maximum allowable base current for continuous operation?
The absolute maximum peak base current is −300 mA (single pulse, tp ≤ 1 ms), but for continuous DC operation, the datasheet specifies IB ≤ −200 mA at IC = −2 A to ensure stable saturation and avoid thermal runaway; sustained base currents above −150 mA require careful thermal derating.
Does PBSS5240T-QVL require a heatsink in standard SOT23 mounting?
No external heatsink is required when mounted on FR4 with a 1 cm² copper pad on the collector pad, achieving Rth(j-a) = 260 K/W. At −2 A and 25 °C ambient, junction temperature remains below 120 °C - well within the +150 °C limit - provided PCB layout follows Nexperia's recommended footprint.
How does the −5 V VEBO rating impact base drive design?
The −5 V emitter-base breakdown voltage requires base drive circuitry to limit reverse bias across B–E to < −5 V. In microcontroller-driven applications, this mandates inclusion of a series resistor or clamping diode to prevent damage during fast turn-off transients or negative voltage spikes on the base node.
PBSS5240T-QVL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Transistor Type:
- PNP
- Current - Collector (Ic) (Max):
- 2 A
- Voltage - Collector Emitter Breakdown (Max):
- 40 V
- Vce Saturation (Max) @ Ib, Ic:
- 350mV @ 200mA, 2A
- Current - Collector Cutoff (Max):
- 100nA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 300 @ 100mA, 2V
- Power - Max:
- 300 mW
- Frequency - Transition:
- 200MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-236AB
PBSS5240T-QVL FAQ
1.How can I place an order for PBSS5240T-QVL through Aetrix?
Please submit a Request for Quotation (RFQ) for PBSS5240T-QVL on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for PBSS5240T-QVL reliable?
The price and inventory of PBSS5240T-QVL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PBSS5240T-QVL is usually 5 days.
3.What payment methods are accepted for PBSS5240T-QVL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PBSS5240T-QVL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PBSS5240T-QVL?
PBSS5240T-QVL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PBSS5240T-QVL order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for PBSS5240T-QVL?
For technical support, including PBSS5240T-QVL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PBSS5240T-QVL requirements.
6.How does Aetrix verify that PBSS5240T-QVL is sourced from the original manufacturer or authorized distributors?
All PBSS5240T-QVL products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that PBSS5240T-QVL meets industry standards.
7.What is the process for return or replacement of PBSS5240T-QVL?
All PBSS5240T-QVL units undergo pre-shipment inspection (PSI). If there is an issue with PBSS5240T-QVL, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The PBSS5240T-QVL part is unused and in its original packaging.
Return procedure for PBSS5240T-QVL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PBSS5240T-QVL Tags

-
MMBT3906LT1G
onsemi

-
MMBT3904-7-F
Diodes Incorporated

-
MMBT3904LT1G
onsemi

-
MMBT3906-7-F
Diodes Incorporated

-
MMBT3904-TP
Micro Commercial Co

-
MMBT2222A-7-F
Diodes Incorporated

-
BC846BLT1G
onsemi

-
BC847B,215
Nexperia USA Inc.

-
SMMBT3904LT1G
onsemi

-
MMBT2222A-TP
Micro Commercial Co

-
MMBTA06LT1G
onsemi

-
MMBT2222ALT1G
onsemi
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…

