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Nexperia USA Inc. PBHV9540Z,115
- Part No.:
- PBHV9540Z,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Bipolar Transistors
- Package:
- TO-261-4, TO-261AA
- Datasheet:
-
PBHV9540Z,115.pdf
- Description:
- TRANS PNP 400V 0.5A SOT-223
- Quantity:
- Payment:
- Shipping:
Inventory:8,619
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Product details
Overview
PBHV9540Z from Nexperia is a PNP high-voltage bipolar junction transistor optimized for switching in high-voltage DC chains, featuring −500 V collector-emitter peak voltage (VCESM), −0.5 A continuous collector current (IC), and ultra-low −180 mV typical VCEsat at IC = −500 mA / IB = −100 mA. It serves as a robust high-side switch in LED chain drivers and SMPS primary-side control circuits where low conduction loss and high breakdown margin are critical.
For engineers reviewing the PBHV9540Z datasheet, PBHV9540Z pinout, PBHV9540Z application, or PBHV9540Z equivalent, key selection criteria include verified VCEsat performance at high IC, thermal resistance under standard FR4 mounting (Rth(j-a) = 85 K/W), and confirmed SOT223-4 pin compatibility with heatsink-enhanced layout requirements.
Technical Context
This PNP transistor employs epitaxial base technology to achieve high hFE (100–155 at IC = −50 mA) while sustaining −400 V VCEO and −500 V VCESM. Its low saturation voltage is achieved via optimized doping profiles and emitter ballasting, enabling efficient operation in constant-current LED string regulation.
Switching behavior is characterized by 1.83 µs turn-on time (ton) and 2.47 µs turn-off time (toff) under standardized test conditions (VCC = −2 V, IC = −0.15 A), with fT = 30 MHz confirming suitability for medium-frequency switching up to ~100 kHz in flyback and buck-derived topologies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCESM | −500 V - Enables safe operation across 400 V DC bus transients without avalanche stress. |
| VCEsat (typ) | −180 mV at IC = −500 mA / IB = −100 mA - Reduces conduction loss to <90 mW, critical for thermally constrained LED driver PCBs. |
| hFE (min) | 100 at IC = −50 mA - Ensures reliable base drive margin with standard microcontroller GPIO or logic-level drivers. |
| Rth(j-sp) | 15 K/W - Confirmed thermal path to solder point supports >0.7 W dissipation on standard FR4 with collector pad. |
| Cc | 20 pF at VCB = −20 V - Low collector capacitance minimizes switching losses and EMI in high-dV/dt environments. |
| fT | 30 MHz - Validates stable gain-bandwidth for feedback loop compensation in regulated SMPS designs. |
Pinout & Package
The PBHV9540Z is housed in an SC-73 (SOT223-4) plastic surface-mount package with integrated heatsink pad (pin 2 and pin 4 both connected to collector), measuring 6.5 mm × 3.5 mm × 1.65 mm and rated for 1.45 W total power dissipation on optimized FR4 layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Base (B) | Control input requiring −100 mA peak base drive for full saturation; referenced to emitter potential. |
| 2 | Collector (C) | Main high-voltage current path; electrically tied to pin 4; requires thermal pad connection for >0.7 W operation. |
| 3 | Emitter (E) | Reference node for load return; common connection point for series LED strings or SMPS transformer primary. |
| 4 | Collector (C) | Duplicate collector terminal for enhanced thermal and current-carrying capability; must be soldered to same copper pour as pin 2. |
Key Features
| Feature | Design Value |
|---|---|
| High-voltage blocking | −500 V VCESM rating enables direct use on 380–400 V DC link rails without external snubbers. |
| Low VCEsat at high current | −180 mV typ at −500 mA ensures <1% conduction loss in 12–24 V LED chain bias applications. |
| Thermally enhanced SOT223-4 | Dual-collector configuration reduces Rth(j-a) to 85 K/W on standard FR4, eliminating need for TO-220 footprint. |
| Stable hFE over temperature | hFE remains ≥80 at Tamb = 100 °C (Fig. 4), supporting consistent gain in enclosed lighting enclosures. |
| Fast switching with low Cc | 20 pF collector capacitance and 2.47 µs toff enable clean 100 kHz PWM dimming without excessive gate-drive complexity. |
Applications
| LED Chain Driver | LCD Backlighting |
|---|---|
|
Use Scenario: Driving 10–20 series-connected white LEDs from 350–400 V DC supply in commercial signage. IC Role / Device Role / Timing Role: High-side constant-current switch regulating LED string current via feedback-controlled base drive. Use Value: −180 mV VCEsat minimizes heat generation in sealed aluminum extrusions, extending thermal lifetime beyond 50,000 hours. |
Use Scenario: Boosted CCFL or edge-lit LED backlight in industrial panel displays operating at 24–48 V input. IC Role / Device Role / Timing Role: Primary-side switch in flyback converter delivering isolated 60–100 V output for LED string bias. Use Value: −500 V VCESM withstands reflected voltage spikes during MOSFET replacement in legacy CCFL inverters. |
| SMPS Primary Switch | Industrial HV Sensor Interface |
|
Use Scenario: Low-power offline flyback adapter (<10 W) for IoT gateway power supplies with universal AC input. IC Role / Device Role / Timing Role: Discrete BJT switch replacing MOSFET in cost-sensitive, low-volume SMPS designs. Use Value: 30 MHz fT and 2.47 µs toff support stable 65–100 kHz operation with minimal gate-drive circuitry. |
Use Scenario: Isolated high-voltage sense node in PLC analog input modules monitoring 24–400 V DC field signals. IC Role / Device Role / Timing Role: High-impedance level-shifting switch enabling microcontroller-safe sampling of HV rail status. Use Value: −100 nA ICBO at 25 °C ensures leakage-induced offset error <1 LSB in 16-bit ADC front-ends. |
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, SOT23 package - lower voltage, higher current, smaller footprint. | Suitable only for ≤60 V systems; cannot replace PBHV9540Z in 400 V LED chains. | Select only when system voltage is ≤60 V and board space is severely constrained. |
| BCP56-16 | −80 V VCEO, 1 A IC, SOT223-3 - no dual-collector, higher Rth(j-a) = 120 K/W. | Limited to ≤80 V SMPS; requires larger copper area to match thermal performance. | Acceptable for 24–48 V industrial controls where VCEO margin is sufficient and heatsinking is feasible. |
Compared with PHPT60303SQ and BCP56-16, PBHV9540Z uniquely delivers −500 V blocking with −180 mV VCEsat in SOT223-4, making it the only option for thermally efficient, high-voltage discrete switching without TO-220 rework.
Availability
PBHV9540Z is available at Aetrix Electronics and suitable for LED chain drivers, LCD backlighting modules, and low-power SMPS requiring stable component supply with guaranteed long-term manufacturability.
Supply support for PBHV9540Z 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-grade and industrial-standard components.
PBHV9540Z belongs to Nexperia's high-voltage bipolar transistor product line, engineered specifically for energy-efficient switching in LED lighting, industrial power conversion, and HV interface circuits.
FAQ
What is the maximum continuous collector current for PBHV9540Z at 100 °C ambient?
The PBHV9540Z supports −0.5 A continuous collector current (IC) at Tamb ≤ 25 °C per datasheet limiting values. At Tamb = 100 °C, derating applies: Fig. 1 shows Ptot drops to ~0.45 W, limiting practical IC to approximately −0.35 A with standard FR4 mounting and adequate airflow.
Can PBHV9540Z replace an NPN transistor in the same circuit?
No - PBHV9540Z is a PNP device with inverted polarity: its emitter connects to the high-voltage rail and collector to the load. Direct NPN substitution would reverse current flow and violate biasing requirements. The NPN complement is PBHV8140Z, which shares identical voltage/current ratings but opposite polarity.
Is PBHV9540Z qualified for automotive applications?
No - Revision history (Table 8) explicitly states PBHV9540Z v.3 changed to non-automotive qualification. Automotive-grade alternatives (e.g., PBHV9540Z-Q) are available separately from Nexperia and require distinct part numbering and qualification documentation.
What is the recommended PCB layout for optimal thermal performance?
Use the footprint in Fig. 14: a 6 cm² tin-plated copper pad connected to pins 2 and 4 (both collectors), with thermal vias to inner ground planes. This achieves Rth(j-sp) = 15 K/W and supports 1.45 W dissipation - essential for sustained LED driver operation above 70 °C ambient.
PBHV9540Z,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- TO-261-4, TO-261AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Transistor Type:
- PNP
- Current - Collector (Ic) (Max):
- 500 mA
- Voltage - Collector Emitter Breakdown (Max):
- 400 V
- Vce Saturation (Max) @ Ib, Ic:
- 320mV @ 100mA, 500mA
- Current - Collector Cutoff (Max):
- 100nA
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 80 @ 300mA, 10V
- Power - Max:
- 1.45 W
- Frequency - Transition:
- 30MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-223
PBHV9540Z,115 FAQ
1.How can I place an order for PBHV9540Z,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for PBHV9540Z,115 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 PBHV9540Z,115 reliable?
The price and inventory of PBHV9540Z,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PBHV9540Z,115 is usually 5 days.
3.What payment methods are accepted for PBHV9540Z,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PBHV9540Z,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PBHV9540Z,115?
PBHV9540Z,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PBHV9540Z,115 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 PBHV9540Z,115?
For technical support, including PBHV9540Z,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PBHV9540Z,115 requirements.
6.How does Aetrix verify that PBHV9540Z,115 is sourced from the original manufacturer or authorized distributors?
All PBHV9540Z,115 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 PBHV9540Z,115 meets industry standards.
7.What is the process for return or replacement of PBHV9540Z,115?
All PBHV9540Z,115 units undergo pre-shipment inspection (PSI). If there is an issue with PBHV9540Z,115, 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 PBHV9540Z,115 part is unused and in its original packaging.
Return procedure for PBHV9540Z,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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