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Nexperia USA Inc. BSP62-QX
- Part No.:
- BSP62-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Bipolar Transistors
- Package:
- TO-261-4, TO-261AA
- Datasheet:
-
BSP62-QX.pdf
- Description:
- TRANS PNP DARL 80V 1A SOT-223
- Quantity:
- Payment:
- Shipping:
Inventory:9,957
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Product details
Overview
BSP62-QX from Nexperia is a PNP Darlington transistor in SOT223 (SC-73) package, designed for high-current switching with -1 A continuous collector current, -80 V VCES, and integrated base-emitter resistor-diode network. It is AEC-Q101 qualified and used in automotive relay drivers, solenoid controls, and industrial print hammer circuits.
For engineers reviewing the BSP62-QX datasheet, BSP62-QX pinout, BSP62-QX application, or BSP62-QX equivalent, key selection criteria include its Darlington gain (hFE ≥ 1000 at -150 mA), low saturation voltage (-1.3 V at -500 mA), thermal resistance (Rth(j-sp) = 17 K/W), and automotive-grade reliability under 150 °C junction operation.
Technical Context
This device implements a monolithic PNP Darlington pair with built-in base-emitter shunt resistor and clamp diode, enabling direct logic-level drive without external bias components. Its structure supports fast turn-on (ton = 400 ns) and controlled turn-off (toff = 1500 ns) under pulsed conditions.
Rated for -80 V VCES and -90 V VCBO, it operates reliably across -65 °C to +150 °C ambient, with thermal performance optimized via the exposed collector pad in the SOT223 package-delivering Rth(j-a) = 98 K/W on FR4 PCB and Rth(j-sp) = 17 K/W to solder point.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCES | -80 V - Maximum safe collector-emitter voltage with base shorted to emitter; defines upper rail limit in high-side switch designs. |
| IC | -1 A - Continuous DC collector current rating; supports robust load switching without derating below 25 °C ambient. |
| hFE | ≥1000 @ -150 mA - High DC current gain enables microcontroller GPIO direct drive with minimal base current (<150 µA typical). |
| VCE(sat) | -1.3 V @ -500 mA - Low saturation voltage reduces power loss (0.65 W) and heat generation in high-duty-cycle applications. |
| Rth(j-sp) | 17 K/W - Junction-to-solder-point thermal resistance confirms efficient heat transfer through the exposed collector pad to PCB copper. |
| toff | 1500 ns - Turn-off delay time measured under defined test conditions; critical for PWM frequency limits in lamp/solenoid control. |
| AEC-Q101 | Qualified - Meets stress-test requirements for discrete semiconductors in automotive environments, including temperature cycling and HTRB. |
Pinout & Package
The BSP62-QX is housed in an SC-73 (SOT223) surface-mount plastic package with four leads, featuring an exposed collector pad for enhanced thermal dissipation. Dimensions: 6.5 mm × 3.5 mm × 1.65 mm body; 2.3 mm lead pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Base | Control input node; internally connected to series resistor and clamp diode anode for logic-compatible drive and ESD protection. |
| 2 | Collector | Main high-current output terminal; electrically tied to Pin 4 and thermally bonded to exposed metal pad for heatsinking. |
| 3 | Emiter | Common emitter reference; connects to system ground or low-side return path in high-side switching configurations. |
| 4 | Collector | Second collector connection-parallel to Pin 2-to reduce bond wire inductance and improve current sharing in high-frequency switching. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated base resistor + clamp diode | Eliminates need for external bias network; enables direct 3.3 V/5 V MCU GPIO interface with overvoltage protection. |
| AEC-Q101 qualification | Validated for automotive under-hood use including temperature cycling, HTRB, and ESD testing per JESD22-A114. |
| Darlington hFE ≥ 1000 | Reduces required base drive current by >10× vs. single PNP, lowering MCU I/O loading and PCB routing complexity. |
| Exposed collector thermal pad | Enables 1.25 W total power dissipation at Tamb ≤ 25 °C on standard FR4; supports compact industrial control board layouts. |
Applications
| Automotive Relay Driver | Industrial Solenoid Control |
|---|---|
|
Use Scenario: Driving 12 V automotive relays in body control modules where space and thermal management are constrained. IC Role / Device Role / Timing Role: High-side PNP Darlington switch providing galvanic isolation between MCU and inductive load. Use Value: Integrated clamp diode suppresses flyback voltage spikes; -1.3 V VCE(sat) minimizes coil heating during duty-cycled operation. |
Use Scenario: Controlling pneumatic solenoids in factory automation PLC I/O modules operating at 24 V DC. IC Role / Device Role / Timing Role: Load switch interfacing programmable logic outputs to high-current inductive actuators. Use Value: -80 V VCES withstands supply transients; AEC-Q101 qualification ensures long-term reliability in harsh industrial environments. |
| Print Hammer Actuation | Lamp Dimming Interface |
|
Use Scenario: Pulse-driven impact mechanism in dot-matrix printers requiring precise timing and high peak current. IC Role / Device Role / Timing Role: Fast-switching Darlington stage triggered by microcontroller PWM signals. Use Value: ton/toff of 400 ns / 1500 ns supports up to ~300 kHz actuation frequency while maintaining mechanical response fidelity. |
Use Scenario: Dimmable incandescent or halogen lamp driver in automotive interior lighting systems. IC Role / Device Role / Timing Role: Linear-mode current regulator for analog brightness control via variable base current. Use Value: High hFE allows stable current regulation with <1% base current variation; -1 A rating covers lamps up to 12 W at 12 V. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PNP Darlington switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor NSS12201MR6T1G | Lower VCES (-60 V), lower IC (-500 mA), no integrated diode, SOT-23 package. | Not suitable for 24 V industrial solenoids or automotive 12 V relays with high back-EMF. | Select only for space-constrained, low-voltage (<15 V), low-current (<500 mA) logic-level switching. |
| Diodes Inc. DXT691AKR | Higher VCES (-100 V), same -1 A IC, no integrated resistor/diode, TO-252 package. | Requires external base resistor and flyback diode; larger footprint but better thermal performance (Rth(j-a) = 60 K/W). | Prefer when higher voltage margin or manual thermal design is prioritized over BOM count reduction. |
Compared with NSS12201MR6T1G and DXT691AKR, the BSP62-QX uniquely combines AEC-Q101 qualification, integrated protection components, and SOT223 thermal efficiency-making it optimal for automotive and industrial switching where reliability, component count, and board area are jointly constrained.
Availability
BSP62-QX is available at Aetrix Electronics and suitable for automotive relay drivers, industrial solenoid controllers, and print hammer actuation requiring stable component supply and long-lifecycle support.
Supply support for BSP62-QX 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 advanced packaging.
The BSP62-QX belongs to Nexperia's AEC-Q101-qualified PNP Darlington portfolio, engineered specifically for robust, low-component-count switching in automotive body electronics and industrial control systems.
FAQ
Is BSP62-QX pin-compatible with BSP52-Q?
No. BSP62-QX is a PNP Darlington; BSP52-Q is its NPN complement. They share identical SOT223 pinout (Base–Collector–Emitter–Collector), but polarity reversal means direct substitution would invert logic behavior and risk circuit damage. Use only as complementary pairs in push-pull or H-bridge topologies.
What is the maximum allowable base current for continuous operation?
The absolute maximum limiting base current (IBlimit) is -100 mA per datasheet Table 5. For reliable continuous operation, base current should be limited to ≤ -10 mA to avoid thermal overstress at Tj = 150 °C, especially when driving loads near -1 A.
Can BSP62-QX be used in linear (analog) amplification mode?
It is not optimized for linear amplification. The Darlington structure introduces high VBE(sat) (~-1.9 V) and wide hFE spread (1000–2000), resulting in poor linearity and thermal drift. Its datasheet specifies parameters only for switching operation; use dedicated PNP transistors like BC807 for analog gain stages.
Does the integrated diode replace the need for an external flyback diode?
Yes-the internal base-emitter clamp diode provides protection against inductive kickback during turn-off. However, for high-energy solenoids or relays, an external TVS or fast recovery diode across the load remains recommended to limit voltage overshoot beyond -5 V at the base node and ensure long-term reliability.
BSP62-QX 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 - Darlington
- Current - Collector (Ic) (Max):
- 1 A
- Voltage - Collector Emitter Breakdown (Max):
- 80 V
- Vce Saturation (Max) @ Ib, Ic:
- 1.3V @ 500µA, 500mA
- Current - Collector Cutoff (Max):
- 50nA
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 2000 @ 500mA, 10V
- Power - Max:
- 1.25 W
- Frequency - Transition:
- 200MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-223
BSP62-QX FAQ
1.How can I place an order for BSP62-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for BSP62-QX 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 BSP62-QX reliable?
The price and inventory of BSP62-QX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BSP62-QX is usually 5 days.
3.What payment methods are accepted for BSP62-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BSP62-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BSP62-QX?
BSP62-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BSP62-QX 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 BSP62-QX?
For technical support, including BSP62-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BSP62-QX requirements.
6.How does Aetrix verify that BSP62-QX is sourced from the original manufacturer or authorized distributors?
All BSP62-QX 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 BSP62-QX meets industry standards.
7.What is the process for return or replacement of BSP62-QX?
All BSP62-QX units undergo pre-shipment inspection (PSI). If there is an issue with BSP62-QX, 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 BSP62-QX part is unused and in its original packaging.
Return procedure for BSP62-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BSP62-QX Tags
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