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Nexperia USA Inc. BSR33,135
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- Part No.:
- BSR33,135
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Bipolar Transistors
- Package:
- TO-243AA
- Datasheet:
-
BSR33,135.pdf
- Description:
- TRANS PNP 80V 1A SOT-89
- Quantity:
- Payment:
- Shipping:
Inventory:7,689
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Product details
Overview
BSR33,135 from Nexperia is a PNP medium-power bipolar junction transistor in SOT89 package, rated for −80 V VCEO, −1 A continuous collector current, and 1.35 W power dissipation at Tamb ≤ 25 °C; designed for high-side switching and linear regulation in automotive-qualified battery-powered systems.
For engineers reviewing the BSR33,135 datasheet, BSR33,135 pinout, BSR33,135 application, or BSR33,135 equivalent, key selection criteria include its AEC-Q101 qualification, exposed heatsink thermal performance (Rth(j-sp) = 13 K/W), −0.25 V VCEsat at −150 mA/−15 mA drive, and complementary pairing with NPN BSR43.
Technical Context
This PNP transistor operates in linear and saturated switching modes, with DC current gain (hFE) ranging from 50 to 300 depending on bias conditions-100–300 at −100 mA, 50 minimum at −500 mA. Its −90 V VCBO and −5 V VEBO support robust blocking in high-side configurations where emitter sits at rail potential.
Thermally optimized via an exposed collector pad soldered directly to PCB copper, it achieves Rth(j-a) = 93 K/W in free air and Rth(j-sp) = 13 K/W to solder point-enabling reliable operation up to 150 °C junction temperature under pulsed or continuous loads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | −80 V: Maximum safe collector-emitter voltage with base open; enables use in 48 V and 60 V automotive subsystems. |
| IC | −1 A continuous: Sustained load current capability without derating below 25 °C ambient; supports medium-power switching. |
| Ptot | 1.35 W at Tamb ≤ 25 °C: Total power dissipation limit on FR4 PCB with 6 cm² collector pad; defines thermal design boundary. |
| hFE | 100–300 at −100 mA: DC current gain range enabling predictable base drive sizing for linear regulators and amplifiers. |
| VCEsat | −0.25 V at −150 mA/−15 mA: Low saturation voltage reduces conduction loss in high-side switch applications. |
| fT | 100 MHz at −10 V/−50 mA: Transition frequency supporting moderate-speed switching and RF amplifier use up to ~10 MHz. |
Pinout & Package
SOT89 plastic surface-mount package with 3 leads, 1.5 mm pitch, 4.5 mm × 2.5 mm × 1.5 mm body, featuring an exposed collector pad for thermal and electrical connection to PCB copper.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Emitter | Current exit terminal; connected to higher potential rail in high-side switch configuration. |
| 2 | Collector | Main current sink terminal; electrically and thermally tied to PCB copper via exposed pad. |
| 3 | Base | Control input; requires negative bias relative to emitter to turn on PNP device. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD per JESD22 standards. |
| Exposed collector pad | Enables direct thermal coupling to PCB copper, reducing Rth(j-sp) to 13 K/W for stable high-current operation. |
| High VCEO / VCBO | −80 V / −90 V ratings allow safe operation in 48 V battery systems with transient margin. |
| Low VCEsat | −0.25 V at −150 mA ensures <150 mW conduction loss in high-side switch mode, minimizing self-heating. |
Applications
| Linear Voltage Regulators | High-Side Switches |
|---|---|
Use Scenario: Adjustable LDO pre-regulator in automotive infotainment power tree supplying 3.3 V/5 V rails. IC Role / Device Role / Timing Role: Pass transistor controlling output voltage via emitter-follower configuration with feedback loop. Use Value: −80 V rating accommodates 48 V input transients; low VCEsat minimizes dropout and thermal load. |
Use Scenario: Load switch enabling/disabling 12 V accessory power in vehicle body control module. IC Role / Device Role / Timing Role: High-side PNP switch controlled by microcontroller GPIO through base resistor network. Use Value: Exposed collector pad sustains 1 A load with minimal board area; AEC-Q101 ensures field reliability. |
| Battery-Driven Devices | MOSFET Drivers |
Use Scenario: Power path management in portable medical monitor with dual Li-ion battery input. IC Role / Device Role / Timing Role: Reverse-polarity protection and battery selection switch in series with load. Use Value: −5 V VEBO withstands reverse-battery stress; −1 A rating covers peak sensor burst currents. |
Use Scenario: Level-shifting gate driver for N-channel high-side MOSFET in buck converter half-bridge. IC Role / Device Role / Timing Role: PNP pull-up stage providing fast turn-off current to MOSFET gate during dead-time. Use Value: 100 MHz fT supports >1 MHz switching; low VCEsat ensures clean gate discharge waveform. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PNP medium-power transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BSR32,135 | Lower VCEO (−60 V) and lower IC (−0.5 A); same SOT89 package and AEC-Q101 qualification. | Suitable only for ≤24 V systems; insufficient for 48 V automotive transients. | Select when cost sensitivity outweighs voltage headroom needs in non-automotive 12–24 V designs. |
| MMBT3906LT1G | Smaller SOT-23 package; −40 V VCEO, −200 mA IC; no AEC-Q101 qualification. | Limited to low-power signal switching; not rated for automotive or high-current loads. | Choose only for space-constrained consumer electronics where automotive reliability is not required. |
Compared with BSR33,135, BSR32,135 trades voltage/current headroom for cost in lower-voltage systems, while MMBT3906LT1G sacrifices ruggedness and power handling for footprint reduction-neither matches the BSR33,135's combination of 48 V compatibility, 1 A capacity, and automotive qualification.
Availability
BSR33,135 is available at Aetrix Electronics and suitable for linear voltage regulators, high-side switches, and battery-driven devices requiring stable component supply across automotive, industrial, and medical OEM programs.
Supply support for BSR33,135 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-enhancing components, with leadership in logic, discrete, and MOSFET technologies for automotive, industrial, and mobile markets.
The BSR33,135 belongs to Nexperia's AEC-Q101-qualified medium-power bipolar transistor family, engineered specifically for high-reliability linear regulation and high-side switching in harsh-environment automotive power systems.
FAQ
Is BSR33,135 pin-compatible with BSR43?
No-BSR33,135 is a PNP transistor with emitter (pin 1), collector (pin 2), base (pin 3); BSR43 is its NPN complement with reversed polarity and identical SOT89 pinout but opposite terminal functions. They share mechanical compatibility but require circuit-level polarity reversal for substitution.
What is the maximum allowable PCB copper area for optimal thermal performance?
Per datasheet footnote [1], optimal thermal performance requires a single-sided FR4 PCB with tin-plated copper and a 6 cm² mounting pad for the collector. Reducing pad area increases Rth(j-a) nonlinearly; halving pad size may raise junction temperature by >20 °C at full load.
Does BSR33,135 support pulse operation beyond its DC ratings?
Yes-peak collector current ICM is rated at −2 A for single pulses ≤1 ms, and peak base current IBM is −200 mA under same conditions. These values enable short-duration surge handling in motor start-up or fault-clearing circuits without thermal runaway.
Can BSR33,135 be used in Class AB audio amplifier output stages?
Yes-its hFE stability across −100 µA to −500 mA, low VCEsat, and 100 MHz fT support mid-power audio output buffering. However, thermal design must account for dissipation in linear mode; recommended only for ≤500 mW RMS output into 8 Ω with adequate heatsinking.
BSR33,135 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- TO-243AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Transistor Type:
- PNP
- Current - Collector (Ic) (Max):
- 1 A
- Voltage - Collector Emitter Breakdown (Max):
- 80 V
- Vce Saturation (Max) @ Ib, Ic:
- 500mV @ 50mA, 500mA
- Current - Collector Cutoff (Max):
- 100nA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 100 @ 100mA, 5V
- Power - Max:
- 1.35 W
- Frequency - Transition:
- 100MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-89
BSR33,135 FAQ
1.How can I place an order for BSR33,135 through Aetrix?
Please submit a Request for Quotation (RFQ) for BSR33,135 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 BSR33,135 reliable?
The price and inventory of BSR33,135 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BSR33,135 is usually 5 days.
3.What payment methods are accepted for BSR33,135?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BSR33,135 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BSR33,135?
BSR33,135 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BSR33,135 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 BSR33,135?
For technical support, including BSR33,135 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BSR33,135 requirements.
6.How does Aetrix verify that BSR33,135 is sourced from the original manufacturer or authorized distributors?
All BSR33,135 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 BSR33,135 meets industry standards.
7.What is the process for return or replacement of BSR33,135?
All BSR33,135 units undergo pre-shipment inspection (PSI). If there is an issue with BSR33,135, 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 BSR33,135 part is unused and in its original packaging.
Return procedure for BSR33,135:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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