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Nexperia USA Inc. PMST4403,115
- Part No.:
- PMST4403,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Bipolar Transistors
- Package:
- SC-70, SOT-323
- Datasheet:
-
PMST4403,115.pdf
- Description:
- TRANS PNP 40V 0.6A SOT-323
- Quantity:
- Payment:
- Shipping:
Inventory:5,412
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Product details
Overview
PMST4403,115 from Nexperia is a PNP bipolar junction transistor optimized for general-purpose switching in space-constrained automotive and industrial circuits, with −40 V VCEO, −600 mA IC, 100–300 hFE at −150 mA, AEC-Q101 qualified, and housed in SOT323 (SC-70) package.
For engineers reviewing the PMST4403,115 datasheet, PMST4403,115 pinout, PMST4403,115 application, or PMST4403,115 equivalent, this page delivers verified electrical parameters, thermal derating behavior, saturation voltage performance across operating temperature, and validated automotive-grade reliability data - all specific to the 115 tape-and-reel variant.
Technical Context
This PNP transistor operates as a current-controlled switch or linear amplifier with base-driven conduction control. Its −40 V VCEO and −800 mA ICM support robust overvoltage and surge tolerance in 12 V/24 V automotive subsystems.
Thermal resistance Rth(j-a) is 625 K/W on FR4 PCB, and its fT of 200 MHz enables fast switching with ton ≤ 40 ns and toff ≤ 350 ns under pulsed conditions (tp ≤ 300 µs, duty ≤ 0.02).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | −40 V - Maximum collector-emitter blocking voltage before breakdown; defines safe operation in 24 V automotive loads. |
| IC | −600 mA continuous - Sustained load current capability; supports relay drivers and LED matrix sinks. |
| hFE | 100–300 at −150 mA - DC current gain range enabling predictable base drive sizing for low-power logic interfacing. |
| VCE(sat) | −400 mV max at −150 mA / −15 mA - Low saturation voltage minimizes power loss and heat generation in switching mode. |
| fT | 200 MHz - Transition frequency confirming suitability for high-speed digital switching up to ~20 MHz square-wave operation. |
| Rth(j-a) | 625 K/W - Junction-to-ambient thermal resistance on standard FR4 PCB; dictates maximum ambient temperature for 150 °C Tj limit. |
Pinout & Package
SOT323 (SC-70) plastic surface-mounted package: ultra-compact 1.3 mm × 2.2 mm footprint, 0.95 mm height, 3-terminal leadframe with gull-wing leads for reflow soldering.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Base (B) | Current-controlled input node; requires −15 mA typical drive for full saturation at −150 mA collector load. |
| 2 | Emitter (E) | Common reference terminal for PNP configuration; connected to higher-potential rail (e.g., +12 V) in high-side switch topology. |
| 3 | Collector (C) | Output current path; sinks load current to ground when base is pulled low relative to emitter. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications per stress test requirements including HTOL, TC, HAST, and ESD (HBM ≥ 2 kV), ensuring field reliability in engine control and body electronics. |
| Low VCE(sat) at high IC | −750 mV max at −500 mA / −50 mA enables efficient switching in power management blocks without external heat sinking. |
| Fast switching speed | ton ≤ 40 ns and toff ≤ 350 ns allow use in PWM dimming circuits and digital signal routing up to 5 MHz. |
| Wide temperature operation | Specified from −65 °C to +150 °C junction temperature, supporting under-hood and industrial control environments. |
Applications
| Automotive Body Control Module | Industrial Sensor Interface |
|---|---|
|
Use Scenario: Driving resistive loads such as door lock actuators and HVAC damper motors in 12 V systems. IC Role / Device Role / Timing Role: High-side PNP switch controlled by microcontroller GPIO with open-drain or level-shifted output. Use Value: −40 V VCEO withstands load-dump transients; AEC-Q101 qualification ensures compliance with automotive reliability standards. |
Use Scenario: Level-shifting and buffering analog sensor outputs (e.g., thermistor networks) into ADC inputs. IC Role / Device Role / Timing Role: Linear amplifier configured in common-emitter mode with stable hFE across −55 °C to +150 °C. Use Value: 100–300 hFE range enables precise gain setting; low VBE(sat) (< −1.3 V) maintains accuracy under varying supply rails. |
| LED Matrix Driver | Power Supply Enable Switch |
|
Use Scenario: Row/column sink switching in multiplexed LED displays for instrument clusters and signage. IC Role / Device Role / Timing Role: Low-duty-cycle pulsed switch with toff ≤ 350 ns enabling >2 kHz refresh rates without ghosting. Use Value: −600 mA IC supports multi-LED strings; SC-70 footprint allows dense layout in space-limited display modules. |
Use Scenario: Enabling/disabling auxiliary 3.3 V or 5 V LDO outputs in battery-powered IoT gateways. IC Role / Device Role / Timing Role: Soft-start and fault-isolation switch placed between LDO input and system rail. Use Value: −5 V VEBO rating prevents reverse-bias damage during hot-swap events; 200 mW Ptot limits self-heating during extended enable states. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PNP switching transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PMST4401,115 | NPN complement with +40 V VCEO, +600 mA IC, identical SOT323 package and AEC-Q101 qualification. | Requires inverted logic drive and low-side switching topology instead of high-side PNP configuration. | Select when circuit architecture uses NPN-based pull-down switching or complementary pair design. |
| BC807-40,115 | Same PNP polarity, −45 V VCEO, −500 mA IC, SOT23 package (larger footprint), hFE 250–630 at −100 mA. | Higher hFE reduces required base drive but larger SOT23 footprint increases board area; not AEC-Q101 qualified. | Choose only for non-automotive industrial use where higher gain and relaxed thermal constraints apply. |
Compared with PMST4401,115, the PMST4403,115 enables high-side switching without level shifters; versus BC807-40,115, it offers smaller size and automotive qualification at the cost of slightly lower IC rating and narrower hFE range.
Availability
PMST4403,115 is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor interfaces, LED matrix drivers, and power supply enable circuits requiring stable component supply and long-term lifecycle continuity.
Supply support for PMST4403,115 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 essential efficiency-enhancing components, delivering high-performance, reliable discrete and logic devices for automotive, industrial, and consumer markets.
The PMST4403,115 belongs to Nexperia's AEC-Q101-qualified small-signal transistor portfolio, engineered specifically for compact, high-reliability switching in automotive and harsh-environment industrial applications.
FAQ
What is the maximum allowable junction temperature for PMST4403,115?
The absolute maximum junction temperature (Tj) is 150 °C, as defined in the Absolute Maximum Ratings table. Operation above this value risks permanent degradation. Derating begins at Tamb > 25 °C per the 625 K/W Rth(j-a) curve, requiring thermal design attention in enclosed or high-ambient environments.
Is PMST4403,115 suitable for linear amplification applications?
Yes - its hFE stability across −55 °C to +150 °C and low VCE(sat) variation make it viable for Class-A amplifier stages in sensor signal conditioning. However, linearity must be verified per application due to inherent BJT nonlinearity; biasing must maintain VCE > 1 V to avoid saturation distortion.
Does PMST4403,115 support wave soldering?
Yes - Nexperia provides dedicated wave soldering footprint dimensions (Fig. 13) for SC-70 packages, specifying 3.65 mm × 2.1 mm solder land area and preferred transport direction. Preheating and dwell time must comply with JEDEC J-STD-020 to avoid delamination or voiding.
How does the AEC-Q101 qualification impact PMST4403,115's use in non-automotive designs?
AEC-Q101 qualification confirms enhanced reliability under temperature cycling, humidity, and mechanical stress - beneficial for any mission-critical industrial or outdoor application. It does not imply automotive-specific features like PPAP documentation, but provides measurable confidence in long-term parametric stability and failure rate.
PMST4403,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Transistor Type:
- PNP
- Current - Collector (Ic) (Max):
- 600 mA
- Voltage - Collector Emitter Breakdown (Max):
- 40 V
- Vce Saturation (Max) @ Ib, Ic:
- 750mV @ 50mA, 500mA
- Current - Collector Cutoff (Max):
- 50nA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 100 @ 150mA, 2V
- Power - Max:
- 200 mW
- Frequency - Transition:
- 200MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-323
PMST4403,115 FAQ
1.How can I place an order for PMST4403,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for PMST4403,115 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 PMST4403,115 reliable?
The price and inventory of PMST4403,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PMST4403,115 is usually 5 days.
3.What payment methods are accepted for PMST4403,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PMST4403,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PMST4403,115?
PMST4403,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PMST4403,115 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 PMST4403,115?
For technical support, including PMST4403,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PMST4403,115 requirements.
6.How does Aetrix verify that PMST4403,115 is sourced from the original manufacturer or authorized distributors?
All PMST4403,115 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 PMST4403,115 meets industry standards.
7.What is the process for return or replacement of PMST4403,115?
All PMST4403,115 units undergo pre-shipment inspection (PSI). If there is an issue with PMST4403,115, 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 PMST4403,115 part is unused and in its original packaging.
Return procedure for PMST4403,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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