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Nexperia USA Inc. PMBT4403,235
- Part No.:
- PMBT4403,235
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Bipolar Transistors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
PMBT4403,235.pdf
- Description:
- TRANS PNP 40V 0.6A TO-236AB
- Quantity:
- Payment:
- Shipping:
Inventory:32,880
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Product details
Overview
PMBT4403,235 from Nexperia is a PNP bipolar junction transistor (BJT) designed for high-speed switching and linear amplification in compact SOT23 packages. It delivers VCEO = −40 V, IC = −600 mA continuous, hFE = 100–300 at IC = −150 mA, and toff = 350 ns - enabling reliable operation in automotive load switching and low-voltage DC-DC bias circuits.
For engineers reviewing the PMBT4403,235 datasheet, PMBT4403,235 pinout, PMBT4403,235 application, or PMBT4403,235 equivalent, key selection criteria include verified PNP switching performance under −40 V VCEO, thermal derating on FR4 PCBs, SOT23 footprint compatibility, and AEC-Q101 qualification for automotive-grade reliability.
Technical Context
The PMBT4403,235 operates as a discrete PNP BJT with base-controlled current amplification and saturation switching. Its structure supports VCE(sat) ≤ −750 mV at IC = −500 mA / IB = −50 mA and fT = 200 MHz, confirming suitability for medium-frequency switching up to ~100 kHz with fast turn-off dynamics.
Thermal behavior is defined by Rth(j-a) = 500 K/W on standard FR4 PCBs, with Tj(max) = 150 °C and full power derating above 25 °C ambient. Electrical limits follow IEC 60134 Absolute Maximum Ratings, including VEBO = −5 V and ICM = −800 mA peak.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | −40 V - maximum collector-emitter voltage before breakdown; defines safe operating range in high-side switch configurations |
| IC | −600 mA - continuous collector current rating; supports loads up to ~240 mW dissipation at VCE ≈ −0.7 V |
| hFE | 100–300 - DC current gain at VCE = −2 V, IC = −150 mA; enables predictable base drive sizing for saturation |
| toff | 350 ns - total turn-off time with IBoff = +15 mA; critical for PWM duty cycle fidelity above 10 kHz |
| Rth(j-a) | 500 K/W - junction-to-ambient thermal resistance on FR4 PCB; requires layout-aware copper area for >150 mW sustained operation |
| fT | 200 MHz - transition frequency at VCE = −10 V, IC = −20 mA; confirms usable bandwidth beyond audio and control frequencies |
Pinout & Package
SOT23 plastic surface-mount package (2.9 mm × 1.3 mm × 1.0 mm body, 1.9 mm pin pitch), optimized for automated placement and reflow soldering on FR4 PCBs with standard footprint per Figure 12.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Base (B) | Current-controlled input node; requires negative bias relative to emitter to forward-bias base-emitter junction |
| 2 | Emitter (E) | Common reference terminal for PNP operation; connected to higher potential rail in high-side switch topologies |
| 3 | Collector (C) | Output current path; sinks current from load to ground or lower-potential node when saturated |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Qualified per Automotive Electronics Council stress test standard - validated for under-hood temperature cycling and humidity exposure |
| VCE(sat) ≤ −750 mV | Low saturation voltage at IC/IB = 10 ensures <150 mW conduction loss at 500 mA, reducing thermal load in space-constrained designs |
| Fast toff = 350 ns | Enables efficient PWM control of resistive/inductive loads up to 100 kHz without excessive switching losses |
| hFE stability over temperature | hFE maintains ≥100 across −55 °C to +150 °C (Fig. 3), supporting consistent base drive design in wide-temperature environments |
Applications
| Automotive Door Lock Actuator | Industrial PLC Output Stage |
|---|---|
|
Use Scenario: Driving 12 V solenoid coils in vehicle door lock modules with PWM-controlled hold current. IC Role / Device Role / Timing Role: PNP high-side switch controlling coil current path from battery rail to ground. Use Value: −40 V VCEO withstands load-dump transients; AEC-Q101 qualification ensures field reliability over 15-year vehicle life. |
Use Scenario: Isolating microcontroller GPIO outputs from 24 V industrial sensors and actuators via open-collector interface. IC Role / Device Role / Timing Role: Discrete level-shifting switch translating 3.3 V logic to 24 V sink capability. Use Value: −600 mA IC supports multiple parallel sensor loads; SOT23 footprint enables dense I/O module layouts. |
| USB-C Power Delivery Gate Control | Medical Infusion Pump Motor Driver |
|
Use Scenario: Enabling/disabling VBUS discharge paths during USB-C port reconfiguration sequences. IC Role / Device Role / Timing Role: Fast-turnoff PNP switch managing controlled discharge of 20 V capacitive loads. Use Value: 350 ns toff prevents voltage overshoot during hot-plug events; −5 V VEBO accommodates gate driver reference shifts. |
Use Scenario: Biasing H-bridge half-bridge drivers in battery-powered infusion pumps requiring precise current regulation. IC Role / Device Role / Timing Role: Linear-mode current source setting reference current for motor phase control ICs. Use Value: hFE = 100–300 enables stable 10–100 µA reference currents with <±5% variation across temperature. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PNP switching transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBT4403 (ON Semiconductor) | Identical VCEO (−40 V), IC (−600 mA), and SOT23 package; hFE min = 100 but typ = 200 (vs. Nexperia's 100–300 range) | No AEC-Q101 qualification; rated for commercial/industrial only - unsuitable for automotive safety-critical subsystems | Select when cost sensitivity outweighs automotive qualification requirements and thermal margin is sufficient |
| DXT4403 (Diodes Inc.) | Same VCEO, IC, and pinout; Rth(j-a) = 450 K/W (vs. 500 K/W); VCE(sat) = −850 mV @ IC/IB = 10 | Higher thermal efficiency allows 10% higher continuous current on same PCB area; slightly higher saturation loss impacts efficiency at high duty cycles | Prefer for thermally constrained industrial controls where board space limits copper area for heat spreading |
Compared with MMBT4403 and DXT4403, the PMBT4403,235 provides guaranteed AEC-Q101 compliance and tighter hFE distribution - making it the sole choice for automotive body electronics, while DXT4403 offers better thermal performance for industrial edge nodes.
Availability
PMBT4403,235 is available at Aetrix Electronics and suitable for automotive door module production, industrial PLC output stages, and medical infusion pump manufacturing requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for PMBT4403,235 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 core expertise in automotive-qualified components and advanced packaging.
The PMBT4403,235 belongs to Nexperia's AEC-Q101-qualified general-purpose transistor product line, engineered specifically for robust switching in automotive body electronics and industrial control systems where thermal stability and transient immunity are critical.
FAQ
Is PMBT4403,235 pin-compatible with NPN transistors like PMBT4401?
No - PMBT4403,235 is a PNP device with Base-Emitter-Collector pinout (1-2-3), while PMBT4401 is an NPN complement with identical SOT23 mechanical footprint but reversed polarity and opposite current flow direction. Circuit redesign is required for substitution.
What is the maximum allowable PCB temperature rise during continuous operation at 500 mA?
At IC = −500 mA and VCE(sat) = −750 mV, power dissipation is 375 mW. With Rth(j-a) = 500 K/W, junction temperature rise is 187.5 K above ambient. To stay within Tj ≤ 150 °C, ambient must remain ≤ −37.5 °C - thus forced cooling or derating to ≤250 mA is required for room-temperature operation.
Does PMBT4403,235 support pulse operation beyond its continuous IC rating?
Yes - the datasheet specifies ICM = −800 mA for single pulses ≤1 ms. This enables short-duration surge handling (e.g., solenoid inrush) provided duty cycle remains low enough to maintain average power within 250 mW and junction temperature stays below 150 °C.
Can PMBT4403,235 be used in linear amplifier configurations?
Yes - its hFE stability (100–300 across −55 °C to +150 °C) and low VCE(sat) support Class-A biasing for low-noise signal amplification up to ~100 kHz, though fT = 200 MHz indicates diminishing gain above that frequency.
PMBT4403,235 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- 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:
- 250 mW
- Frequency - Transition:
- 200MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-236AB
PMBT4403,235 FAQ
1.How can I place an order for PMBT4403,235 through Aetrix?
Please submit a Request for Quotation (RFQ) for PMBT4403,235 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 PMBT4403,235 reliable?
The price and inventory of PMBT4403,235 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PMBT4403,235 is usually 5 days.
3.What payment methods are accepted for PMBT4403,235?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PMBT4403,235 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PMBT4403,235?
PMBT4403,235 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PMBT4403,235 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 PMBT4403,235?
For technical support, including PMBT4403,235 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PMBT4403,235 requirements.
6.How does Aetrix verify that PMBT4403,235 is sourced from the original manufacturer or authorized distributors?
All PMBT4403,235 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 PMBT4403,235 meets industry standards.
7.What is the process for return or replacement of PMBT4403,235?
All PMBT4403,235 units undergo pre-shipment inspection (PSI). If there is an issue with PMBT4403,235, 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 PMBT4403,235 part is unused and in its original packaging.
Return procedure for PMBT4403,235:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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