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Nexperia USA Inc. PBHV8540Z,115
- Part No.:
- PBHV8540Z,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Bipolar Transistors
- Package:
- TO-261-4, TO-261AA
- Datasheet:
-
PBHV8540Z,115.pdf
- Description:
- TRANS NPN 400V 0.5A SOT-223
- Quantity:
- Payment:
- Shipping:
Inventory:2,301
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Product details
Overview
PBHV8540Z,115 from Nexperia is an NPN high-voltage bipolar junction transistor in SOT223 (SC-73) package, rated for 500 V VCESM, 0.5 A continuous collector current, and low 135 mV typical VCEsat at IC = 300 mA / IB = 60 mA. It serves as a robust switching element in high-voltage DC-DC stages, LED chain drivers, and electronic ballasts where low conduction loss and voltage headroom are critical.
For engineers reviewing the PBHV8540Z,115 datasheet, PBHV8540Z,115 pinout, PBHV8540Z,115 application, or PBHV8540Z,115 equivalent, key selection criteria include verified VCEsat performance at 300 mA, thermal resistance Rth(j-sp) of 20 K/W with optimized PCB pad, and validated 500 V peak blocking capability under transient conditions.
Technical Context
This transistor employs a planar epitaxial process optimized for high-voltage operation and low saturation voltage. Its structure supports stable hFE of 100–200 at IC = 50 mA and retains usable gain (10–20) even at IC = 300 mA under pulsed conditions, enabling reliable switching control across wide load ranges.
Designed for medium-power SMD applications, it features dual-collector terminals (Pins 2 & 4) to enhance current handling and thermal dissipation. The SC-73 package integrates an extended copper tab for direct heatsinking-critical for maintaining Tj ≤ 150 °C in LED driver and HID lighting circuits operating near 400 V DC bus.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCESM | 500 V peak collector-emitter voltage - enables safe operation in 400 V DC bus systems with margin for transients |
| IC | 0.5 A continuous collector current - supports sustained drive for LED chains up to 20 W at 350 mA |
| VCEsat | 135 mV typical at IC = 300 mA / IB = 60 mA - reduces conduction loss to <100 mW, minimizing self-heating |
| hFE | 100–200 at IC = 50 mA - ensures stable base drive design with standard 10 kΩ bias networks |
| Rth(j-sp) | 20 K/W - achieves ≤90 °C junction rise above solder point at 0.5 A with 6 cm² collector pad |
| fT | 30 MHz - supports switching frequencies up to 500 kHz in SMPS with adequate gain margin |
| Cc | 4 pF - limits Miller capacitance to reduce gate-drive energy and improve turn-off speed |
Pinout & Package
SOT223 (SC-73) plastic surface-mount package with 4 leads, 2.3 mm pitch, and integrated heatsink tab (Pin 2 & Pin 4 both connected to collector). Dimensions: 6.5 mm × 3.5 mm × 1.65 mm body; mounting pad for collector requires 6 cm² copper area for full power rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Base | Control input; accepts 60 mA base current for full saturation at 300 mA collector load |
| 2 | Collector | Main high-voltage current path; electrically tied to Pin 4 for parallel current routing and thermal spreading |
| 3 | Emiter | Reference node for switching; connects to ground or low-side return path in common-emitter configuration |
| 4 | Collector | Secondary collector terminal; shares internal connection with Pin 2 to reduce bond-wire inductance and improve thermal coupling to PCB |
Key Features
| Feature | Design Value |
|---|---|
| High-voltage blocking | 500 V VCESM rating - eliminates need for external snubbers in 380–400 V PFC output stages |
| Low VCEsat | 135 mV typical at 300 mA - cuts conduction loss by >40% vs. standard HV transistors (e.g., MJD127), improving efficiency in LED drivers |
| Dual-collector layout | Pins 2 & 4 both collector - lowers effective thermal resistance and distributes current across two PCB pads |
| Stable hFE at high IC | 10–20 at IC = 300 mA (pulsed) - enables predictable base drive sizing without overdesigning driver stage |
| Optimized for FR4 PCB | Rth(j-a) = 89 K/W with 6 cm² collector pad - delivers full 1.4 W power dissipation without metal-core board |
Applications
| Electronic Ballast | LED Chain Driver |
|---|---|
Use Scenario: High-frequency AC drive for T5/T8 fluorescent lamps with active PFC front-end. IC Role / Device Role / Timing Role: Main switch in half-bridge inverter stage, operating at 25–50 kHz. Use Value: 500 V VCESM withstands reflected spikes from inductive lamp load; low VCEsat minimizes heating during extended dimming cycles. |
Use Scenario: Constant-current switching regulator driving 12–20 series-connected white LEDs from 350–400 V DC bus. IC Role / Device Role / Timing Role: Low-side switch in buck topology, modulated at 100–500 kHz. Use Value: Dual-collector thermal path maintains Tj < 110 °C at 350 mA, extending LED lifetime and enabling compact heatsink design. |
| LCD Backlighting | HID Front Lighting |
Use Scenario: CCFL or high-brightness LED backlight in industrial displays requiring 200–300 V boost output. IC Role / Device Role / Timing Role: Primary switch in flyback or resonant converter powering high-voltage lamp/LED string. Use Value: 400 V VCEO rating matches typical boost output; 30 MHz fT supports clean zero-voltage switching transitions. |
Use Scenario: Ignition and run-mode control in automotive HID headlamps (D2S/D2R). IC Role / Device Role / Timing Role: Series pass switch regulating lamp current during warm-up and steady-state phases. Use Value: 100 nA ICES at 320 V ensures minimal leakage during lamp off-state; rugged construction sustains repeated 25 kV ignition pulses. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage switching transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STN1NK60Z | 600 V VDS, MOSFET; RDS(on) = 12 Ω @ 10 V; no inherent body diode recovery limitation | Requires gate driver; better suited for high-frequency (>1 MHz) SMPS but less efficient below 100 kHz due to higher conduction loss at 300 mA | Choose for designs needing zero-threshold switching or synchronous rectification compatibility |
| BUJ302A | 400 V VCEO, 1 A IC; VCEsat = 1.2 V typical - 9× higher saturation voltage than PBHV8540Z | Higher conduction loss limits use to lower-power (<5 W) ballasts; unsuitable for 350 mA LED chains without forced cooling | Choose only if legacy footprint compatibility is mandatory and thermal budget allows ≥1.5 W dissipation |
Compared with STN1NK60Z and BUJ302A, PBHV8540Z delivers optimal balance of 500 V rating, ultra-low VCEsat, and SOT223 thermal performance-making it uniquely suitable for cost-sensitive, medium-power lighting and SMPS where BJT simplicity and low-loss switching are prioritized over MOSFET gate drive complexity.
Availability
PBHV8540Z,115 is available at Aetrix Electronics and suitable for electronic ballasts, LED chain drivers, LCD backlighting, and HID front lighting requiring stable component supply with consistent parametric performance across production lots.
Supply support for PBHV8540Z,115 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 and industrial-grade components.
PBHV8540Z belongs to Nexperia's high-voltage BJT portfolio designed specifically for energy-efficient lighting and power conversion-emphasizing low VCEsat, rugged voltage tolerance, and thermally optimized SMD packaging for real-world board-level reliability.
FAQ
What is the maximum continuous collector current for PBHV8540Z,115 under standard PCB conditions?
The PBHV8540Z,115 supports 0.5 A continuous collector current when mounted on an FR4 PCB with a 6 cm² copper pad for the collector terminal. This rating assumes ambient temperature ≤25 °C and accounts for the device's 1.4 W total power dissipation limit and 89 K/W junction-to-ambient thermal resistance under those conditions.
Can PBHV8540Z,115 replace BUJ302A in existing electronic ballast designs?
Yes, but with design validation: PBHV8540Z,115 offers identical SOT223 footprint and pinout, yet delivers 135 mV VCEsat versus BUJ302A's 1.2 V-reducing conduction loss by ~90%. Base drive must be adjusted for lower required IB (60 mA vs. ~200 mA), and layout should verify thermal relief for the dual-collector configuration.
Is PBHV8540Z,115 qualified for automotive applications?
No. Per Nexperia's revision history (v.4, October 2024), PBHV8540Z,115 is explicitly designated as non-automotive qualified. It lacks AEC-Q101 stress testing and automotive-specific reliability screening. For automotive HID or motor management, Nexperia's -Q qualified variants (e.g., PBHV8540Z-Q) must be selected instead.
How does the dual-collector configuration (Pins 2 & 4) affect PCB layout?
Pins 2 and 4 are internally shorted to the collector, so both must connect to the same high-current net-ideally a single large copper pour. This configuration halves effective current density per trace, reduces localized heating, and improves thermal coupling to the PCB. Layout must avoid splitting the collector net between pins or routing signals through either pin alone.
PBHV8540Z,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:
- NPN
- Current - Collector (Ic) (Max):
- 500 mA
- Voltage - Collector Emitter Breakdown (Max):
- 400 V
- Vce Saturation (Max) @ Ib, Ic:
- 250mV @ 60mA, 300mA
- Current - Collector Cutoff (Max):
- 100nA
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 10 @ 300mA, 10V
- Power - Max:
- 1.4 W
- Frequency - Transition:
- 30MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-223
PBHV8540Z,115 FAQ
1.How can I place an order for PBHV8540Z,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for PBHV8540Z,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 PBHV8540Z,115 reliable?
The price and inventory of PBHV8540Z,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PBHV8540Z,115 is usually 5 days.
3.What payment methods are accepted for PBHV8540Z,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PBHV8540Z,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PBHV8540Z,115?
PBHV8540Z,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PBHV8540Z,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 PBHV8540Z,115?
For technical support, including PBHV8540Z,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PBHV8540Z,115 requirements.
6.How does Aetrix verify that PBHV8540Z,115 is sourced from the original manufacturer or authorized distributors?
All PBHV8540Z,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 PBHV8540Z,115 meets industry standards.
7.What is the process for return or replacement of PBHV8540Z,115?
All PBHV8540Z,115 units undergo pre-shipment inspection (PSI). If there is an issue with PBHV8540Z,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 PBHV8540Z,115 part is unused and in its original packaging.
Return procedure for PBHV8540Z,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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