Nexperia USA Inc. PBHV9040T-QR
- Part No.:
- PBHV9040T-QR
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Bipolar Transistors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
PBHV9040T-QR.pdf
- Description:
- TRANS PNP 400V 0.25A TO-236AB
- Quantity:
- Payment:

- Shipping:

Inventory:6,908
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Product details
Overview
PBHV9040T-QR from Nexperia is a PNP high-voltage bipolar junction transistor in SOT23 package, rated for −500 V collector-emitter peak voltage (VCESM), −0.25 A continuous collector current (IC), and −110 mV typical VCEsat at IC = −100 mA/IB = −20 mA. It serves as a robust switching element in automotive and industrial high-voltage DC-DC stages, LED chain drivers, and HID lighting ballasts.
For engineers reviewing the PBHV9040T-QR datasheet, PBHV9040T-QR pinout, PBHV9040T-QR application, or PBHV9040T-QR equivalent, this device is selected for high-voltage PNP switching where low saturation voltage, AEC-Q101 qualification, and thermal stability up to 150 °C junction temperature are critical design requirements.
Technical Context
This transistor operates as a high-voltage PNP switch with verified AEC-Q101 qualification for automotive use. Its −500 V VCESM rating enables reliable operation in flyback snubbers and inductive load switching circuits where transient overvoltage exceeds −400 V.
It delivers −110 mV typical VCEsat at IC = −100 mA with IB = −20 mA, supporting efficient power stage conduction while maintaining hFE ≥ 100 at −50 mA and ≥ 10 at −250 mA pulsed. Thermal resistance Rth(j-a) is 417 K/W on FR4 PCB, enabling stable operation under derated power conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCESM | −500 V peak collector-emitter voltage - supports safe operation during voltage transients in SMPS and HID lamp ignition. |
| VCEsat (typ) | −110 mV at IC = −100 mA, IB = −20 mA - reduces conduction loss and self-heating in high-side PNP switch configurations. |
| hFE (min) | 100 at VCE = −10 V, IC = −50 mA - ensures sufficient DC gain for base-driven switching without excessive drive current. |
| IC (max) | −0.25 A continuous - defines maximum steady-state current handling in linear or saturated switching modes. |
| Rth(j-a) | 417 K/W on FR4 PCB - determines thermal rise per watt; requires layout-aware copper area for >150 mW sustained dissipation. |
| fT | 55 MHz at VCE = −10 V, IC = −10 mA - supports fast switching in <100 ns turn-off applications like LED strobing or telecom hook switches. |
| Cc | 7 pF at VCB = −20 V - limits high-frequency Miller capacitance, easing gate/base drive design in high-speed switching. |
Pinout & Package
SOT23 (TO-236AB) plastic surface-mount package: 2.9 mm × 1.3 mm × 1.0 mm body, 1.9 mm lead pitch, qualified for reflow and wave soldering per JEDEC standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Base (B) | Control terminal; requires negative bias relative to emitter to forward-bias PNP junction and enable conduction. |
| 2 | Emitter (E) | Current source terminal; connected to higher potential rail in high-side switch configuration. |
| 3 | Collector (C) | Current sink terminal; tied to load and switched to lower potential (e.g., ground or negative rail) during ON state. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive motor management and lighting systems per stress test requirements including HTOL, TC, HTRB. |
| Low VCEsat | −110 mV typ. at rated current - directly lowers I²R losses and improves efficiency in battery-powered or thermally constrained modules. |
| High VCESM | −500 V - enables use in 400 V DC bus applications with margin for surge and ringing, eliminating need for external clamping in many cases. |
| High hFE at high IC | hFE ≥ 10 at −250 mA pulsed - sustains usable gain during peak-load switching, reducing required base drive power. |
| Small SOT23 footprint | Standardized 3-pin SMD outline - allows direct replacement of legacy SOT23 PNP transistors without board redesign. |
Applications
| Electronic Ballast for Fluorescent Lighting | LED Driver for LED Chain Module |
|---|---|
Use Scenario: High-frequency AC-to-DC conversion and lamp preheat/strike control in commercial lighting fixtures. IC Role / Device Role / Timing Role: PNP high-side switch controlling resonant tank current during ignition phase. Use Value: −500 V VCESM withstands lamp open-circuit transients; −110 mV VCEsat minimizes heat buildup during repeated strike cycles. |
Use Scenario: Constant-current switching in multi-string LED arrays powered from 24–48 V DC rails. IC Role / Device Role / Timing Role: Low-loss series pass switch regulating current through LED chains via PWM dimming. Use Value: High hFE at −100 mA ensures stable regulation with minimal base drive overhead; AEC-Q101 supports industrial-grade reliability. |
| LCD Backlighting | Automotive Motor Management |
Use Scenario: CCFL or high-brightness LED backlight driving in automotive infotainment displays. IC Role / Device Role / Timing Role: High-voltage PNP switch in boost converter output stage or inverter half-bridge. Use Value: −400 V VCEO rating matches typical 300–400 V backlight bus voltages; 150 °C Tj rating supports under-hood ambient conditions. |
Use Scenario: Solenoid, fuel injector, or fan control in engine control units (ECUs) and body electronics. IC Role / Device Role / Timing Role: High-side driver for inductive loads requiring reverse-polarity protection and fast turn-off. Use Value: 55 MHz fT enables <2 µs turn-off time; −500 V VCESM suppresses inductive kickback without external TVS diodes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage PNP switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PHPT60303SQ | −60 V VCEO, −3 A IC, SOT223 package - lower voltage rating but higher current capacity and better thermal performance (Rth(j-a) = 60 K/W). | Not suitable for >−400 V applications; limited to 12–24 V automotive loads like window motors or HVAC actuators. | Select when higher current and lower thermal resistance outweigh voltage requirements. |
| BC807-40-Q | −45 V VCEO, −500 mA IC, same SOT23 package - lacks AEC-Q101 qualification and has only −45 V breakdown. | Restricted to non-automotive, low-voltage logic-level switching; unsuitable for HID, SMPS, or any >−100 V circuit. | Choose only for cost-sensitive consumer-grade designs where voltage and qualification are not constraints. |
Compared with PHPT60303SQ and BC807-40-Q, PBHV9040T-QR uniquely balances −500 V capability, AEC-Q101 compliance, and SOT23 form factor-making it the only option among the three for automotive-grade, high-voltage PNP switching in space-constrained layouts.
Availability
PBHV9040T-QR is available at Aetrix Electronics and suitable for electronic ballasts, LED chain drivers, LCD backlighting, and automotive motor management requiring stable component supply across production lifecycles.
Supply support for PBHV9040T-QR 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 high-volume, high-reliability discrete and logic devices, with leadership in automotive-qualified components and energy-efficient power solutions.
PBHV9040T-QR belongs to Nexperia's high-voltage bipolar transistor product line, engineered specifically for automotive lighting, industrial power conversion, and telecom infrastructure where robustness under voltage stress and thermal cycling is mandatory.
FAQ
Is PBHV9040T-QR pin-compatible with standard SOT23 PNP transistors?
Yes, PBHV9040T-QR uses the industry-standard SOT23 pinout: Pin 1 = Base, Pin 2 = Emitter, Pin 3 = Collector. This matches JEDEC TO-236AB mechanical specifications and is compatible with existing SOT23 footprints designed for PNP devices such as BC807 or MMBT3906, provided voltage and current ratings are verified.
What is the maximum allowable base current for continuous operation?
The absolute maximum peak base current (IBM) is −200 mA per datasheet Table 5, but continuous base current must be limited to ensure junction temperature remains ≤150 °C. At Tamb = 25 °C, with Ptot = 300 mW and typical VBEsat ≈ −1.05 V, continuous IB should not exceed −150 mA to maintain safe thermal margin under worst-case conduction duty cycle.
Does PBHV9040T-QR require a base resistor in switching applications?
Yes - a base resistor is required to limit IB and ensure proper saturation. For example, with VBB = −5 V and target IB = −20 mA (to achieve −110 mV VCEsat), a 150 Ω resistor provides appropriate drive while accounting for VBEsat ≈ −1.05 V. Omitting the resistor risks excessive base current and thermal runaway.
Can PBHV9040T-QR replace NPN transistors in existing designs?
No - PBHV9040T-QR is a PNP device and cannot directly substitute for NPN transistors due to opposite polarity, complementary biasing requirements, and reversed current flow direction. Its NPN complement is PBHV8540T-Q; any topology change would require full circuit reanalysis including drive signal inversion and power rail referencing.
PBHV9040T-QR 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):
- 250 mA
- Voltage - Collector Emitter Breakdown (Max):
- 400 V
- Vce Saturation (Max) @ Ib, Ic:
- 200mV @ 20mA, 100mA
- Current - Collector Cutoff (Max):
- 100nA
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 100 @ 50mA, 10V
- Power - Max:
- 300 mW
- Frequency - Transition:
- 55MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-236AB
PBHV9040T-QR FAQ
1.How can I place an order for PBHV9040T-QR through Aetrix?
Please submit a Request for Quotation (RFQ) for PBHV9040T-QR 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 PBHV9040T-QR reliable?
The price and inventory of PBHV9040T-QR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PBHV9040T-QR is usually 5 days.
3.What payment methods are accepted for PBHV9040T-QR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PBHV9040T-QR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PBHV9040T-QR?
PBHV9040T-QR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PBHV9040T-QR 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 PBHV9040T-QR?
For technical support, including PBHV9040T-QR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PBHV9040T-QR requirements.
6.How does Aetrix verify that PBHV9040T-QR is sourced from the original manufacturer or authorized distributors?
All PBHV9040T-QR 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 PBHV9040T-QR meets industry standards.
7.What is the process for return or replacement of PBHV9040T-QR?
All PBHV9040T-QR units undergo pre-shipment inspection (PSI). If there is an issue with PBHV9040T-QR, 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 PBHV9040T-QR part is unused and in its original packaging.
Return procedure for PBHV9040T-QR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PBHV9040T-QR Tags

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