Nexperia USA Inc. PBSS5350D,135
- Part No.:
- PBSS5350D,135
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Bipolar Transistors
- Package:
- SC-74, SOT-457
- Datasheet:
-
PBSS5350D,135.pdf
- Description:
- TRANS PNP 50V 3A 6-TSOP
- Quantity:
- Payment:

- Shipping:

Inventory:8,719
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Product details
Overview
PBSS5350D,135 from Nexperia is a PNP low VCEsat transistor in SOT457 (SC-74/TSOP6) package, rated for −50 V VCEO, −3 A continuous IC, and 120–150 mΩ RCEsat; designed for high-efficiency supply-line switching and battery management where minimal conduction loss and compact PCB footprint are critical.
For engineers reviewing the PBSS5350D,135 datasheet, PBSS5350D,135 pinout, PBSS5350D,135 application, or PBSS5350D,135 equivalent, key selection criteria include verified PNP polarity, confirmed 6-pin SOT457 terminal mapping, low-saturation performance under −2 A/−200 mA drive, thermal resistance under defined PCB copper area, and non-automotive qualification status.
Technical Context
This device operates as a discrete PNP bipolar junction transistor with fixed emitter-base-collector topology. Its low VCEsat (≤300 mV at −2 A/−200 mA) and RCEsat (120–150 mΩ) stem from optimized epitaxial structure and heavy doping, enabling reduced power dissipation versus standard transistors.
It delivers hFE ≥100 at −2 A and exhibits fT = 100 MHz, supporting moderate-speed switching up to ~100 kHz in DC-DC converters. Thermal performance is specified for three mounting conditions: 1 cm² (208 K/W), 6 cm² (160 K/W), and 4-layer PCB (100 K/W).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | −50 V: Maximum safe collector-emitter voltage with base open; defines blocking capability in high-side switch configurations. |
| IC (continuous) | −3 A: Continuous collector current rating; sets maximum steady-state load current in battery disconnect or power rail control. |
| RCEsat | 120–150 mΩ: Confirmed saturation resistance at −2 A/−200 mA; directly determines conduction loss (P = I²R) and thermal rise. |
| hFE | ≥100 at −2 A: Minimum DC current gain ensures reliable saturation with ≤200 mA base drive, reducing driver-stage complexity. |
| fT | 100 MHz: Transition frequency enables stable operation in PWM-controlled DC-DC stages up to ~100 kHz without gain roll-off issues. |
| Tj max | 150 °C: Maximum junction temperature; constrains thermal design margin when operating at full current on FR4 PCBs. |
Pinout & Package
Package: SOT457 (SC-74 / TSOP6), 6-lead surface-mount plastic package with exposed collector pad for thermal enhancement; dimensions 3.1 × 1.7 × 1.3 mm (L × W × H); pin 1 index marked.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 5, 6 | Collector (C) | Four parallel collector terminals reduce bond-wire inductance and improve current sharing; enable high-current routing via multiple PCB pads. |
| 3 | Base (B) | Sole base connection; requires external current-limiting resistor to deliver −200 mA drive for full saturation. |
| 4 | Emiter (E) | Single emitter terminal; serves as reference node for load-side switching; must be routed with low-inductance trace in high-dI/dt applications. |
Key Features
| Feature | Design Value |
|---|---|
| Low VCEsat | ≤300 mV at −2 A/−200 mA: Reduces conduction loss by >50% vs. conventional PNP transistors, lowering thermal load in space-constrained designs. |
| High current capability | −3 A continuous, −5 A pulsed: Supports robust load switching in portable power systems without derating below ambient 70 °C. |
| Thermal efficiency | Rth(j-a) = 100 K/W on 4-layer PCB: Enables higher sustained power density than TO-236 devices in multi-layer board layouts. |
| PCB area reduction | 6-pin SOT457 footprint occupies <25% area of comparable SOT23-3 PNP transistors: Frees routing space for dense battery management ICs. |
Applications
| Supply Line Switching | Battery Management |
|---|---|
Use Scenario: High-side power switch controlling 12 V automotive accessory rail or industrial 24 V bus. IC Role / Device Role / Timing Role: Discrete PNP transistor acting as main load disconnect switch, driven by microcontroller GPIO via base resistor. Use Value: Low RCEsat minimizes voltage drop (<300 mV) and self-heating during continuous 2 A load, eliminating need for heatsink. |
Use Scenario: Cell balancing or protection FET in 2S–4S Li-ion battery packs. IC Role / Device Role / Timing Role: PNP switch isolating charge path or enabling discharge shunt during overvoltage events. Use Value: −50 V VCEO safely blocks stacked cell voltages; fast turn-on (driven by dedicated gate driver) supports sub-10 µs response. |
| DC-to-DC Conversion | Industrial Power Sequencing |
Use Scenario: Synchronous rectifier or high-side switch in non-isolated buck converter (e.g., 5 V → 3.3 V @ 2 A). IC Role / Device Role / Timing Role: Active switch in power stage, controlled by PWM signal through level-shifting base driver. Use Value: 100 MHz fT ensures stable gain at 100 kHz switching frequency; low VCEsat improves conversion efficiency by ≥1.2% at full load. |
Use Scenario: Controlled power-up sequencing of FPGA, DSP, or multi-rail SoC in programmable logic controllers. IC Role / Device Role / Timing Role: Discrete PNP used in discrete delay/enable circuit to stagger 3.3 V, 1.8 V, and 1.2 V rail activation. Use Value: Predictable hFE ≥100 allows precise timing via RC network; SOT457 package enables placement near target ICs without routing congestion. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PNP low-VCEsat transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor NSS5350MUTBG | Same SOT457 package, −50 V VCEO, but higher RCEsat (180–220 mΩ) and lower hFE (85 min at −2 A). | Less efficient at high current; requires larger base drive for equivalent saturation. | Select if cost sensitivity outweighs 15–20% higher conduction loss and thermal margin is ample. |
| Diodes Incorporated DMMT5350WQ-7 | −40 V VCEO, −2.5 A IC, RCEsat = 130–160 mΩ; automotive-qualified (AEC-Q101). | Not suitable for 48 V or 24 V systems requiring −50 V rating; qualified for automotive environments. | Choose only for automotive-grade designs where −40 V rating suffices and qualification compliance is mandatory. |
Compared with NSS5350MUTBG and DMMT5350WQ-7, PBSS5350D,135 offers superior voltage headroom (−50 V), highest continuous current (−3 A), and lowest RCEsat, making it optimal for industrial and consumer power-switching where thermal density and efficiency are prioritized over automotive qualification.
Availability
PBSS5350D,135 is available at Aetrix Electronics and suitable for supply line switching, battery management, and DC-to-DC conversion applications requiring stable component supply, consistent parametric performance across production lots, and long-term commercial lifecycle support.
Supply support for PBSS5350D,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 high-volume, high-reliability discrete and logic devices, with leadership in advanced packaging and automotive-grade components.
PBSS5350D,135 belongs to Nexperia's "Low VCEsat Transistor" product line, engineered specifically for power efficiency in space-constrained consumer, industrial, and computing applications-emphasizing low conduction loss, thermal robustness, and SMT manufacturability.
FAQ
Is PBSS5350D,135 automotive-qualified?
No. Per Nexperia's revision history (v.7, Jan 2023), PBSS5350D,135 is explicitly designated as non-automotive qualified. It lacks AEC-Q101 certification and is not tested to automotive reliability standards. For automotive use, Nexperia recommends its −Q qualified variants such as PBSS5350DQ,115.
What is the recommended base resistor value for full saturation at −2 A collector current?
With hFE ≥100 and required IB = −200 mA for guaranteed saturation, and assuming VBEsat ≈ −1.2 V at that condition, a 10 Ω resistor is typical when driven from a 3.3 V logic source (IB = (3.3 V − 1.2 V)/10 Ω = 210 mA). Layout must minimize trace inductance to avoid overshoot.
Can PBSS5350D,135 replace a standard SOT23-3 PNP transistor like BC807?
No direct replacement: PBSS5350D,135 uses a 6-pin SOT457 package with four collector pins and different pinout (C-C-B-E-C-C), whereas BC807 uses 3-pin SOT23-3 (C-B-E). PCB layout, thermal pad, and driver interface must be redesigned; electrical benefits (lower VCEsat, higher IC) require revalidation.
How does thermal resistance vary with PCB copper area, and which value applies to standard FR4 prototypes?
Rth(j-a) is 208 K/W on 1 cm² single-sided FR4 (standard prototype), 160 K/W on 6 cm², and 100 K/W on 4-layer board. For lab validation, use the 208 K/W value with conservative derating: at −2 A, Pdiss ≈ 0.3 W implies ΔT ≈ 62 °C above ambient-keeping Tj < 125 °C at 25 °C ambient.
PBSS5350D,135 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SC-74, SOT-457
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Transistor Type:
- PNP
- Current - Collector (Ic) (Max):
- 3 A
- Voltage - Collector Emitter Breakdown (Max):
- 50 V
- Vce Saturation (Max) @ Ib, Ic:
- 300mV @ 200mA, 2A
- Current - Collector Cutoff (Max):
- 100nA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 100 @ 2A, 2V
- Power - Max:
- 750 mW
- Frequency - Transition:
- 100MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-TSOP
PBSS5350D,135 FAQ
1.How can I place an order for PBSS5350D,135 through Aetrix?
Please submit a Request for Quotation (RFQ) for PBSS5350D,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 PBSS5350D,135 reliable?
The price and inventory of PBSS5350D,135 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PBSS5350D,135 is usually 5 days.
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PBSS5350D,135 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PBSS5350D,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 PBSS5350D,135?
For technical support, including PBSS5350D,135 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PBSS5350D,135 requirements.
6.How does Aetrix verify that PBSS5350D,135 is sourced from the original manufacturer or authorized distributors?
All PBSS5350D,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 PBSS5350D,135 meets industry standards.
7.What is the process for return or replacement of PBSS5350D,135?
All PBSS5350D,135 units undergo pre-shipment inspection (PSI). If there is an issue with PBSS5350D,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 PBSS5350D,135 part is unused and in its original packaging.
Return procedure for PBSS5350D,135:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PBSS5350D,135 Tags

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Diodes Incorporated

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Nexperia USA Inc.

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