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Nexperia USA Inc. PMBT4401,235
- Part No.:
- PMBT4401,235
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Bipolar Transistors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
PMBT4401,235.pdf
- Description:
- TRANS NPN 40V 0.6A TO-236AB
- Quantity:
- Payment:
- Shipping:
Inventory:31,748
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Product details
Overview
PMBT4401,235 from Nexperia is an NPN silicon switching transistor in SOT23 package, rated for 40 V VCEO, 600 mA IC, and DC current gain (hFE) of 100–300 at 150 mA/1 V. It delivers fast switching with ton ≤ 35 ns and toff ≤ 250 ns, and is widely used in low-voltage digital logic interface and relay driver circuits.
For engineers reviewing the PMBT4401,235 datasheet, PMBT4401,235 pinout, PMBT4401,235 application, or PMBT4401,235 equivalent, key selection criteria include verified VCEO/IC derating on FR4 PCB, hFE consistency across 10–150 mA, saturation voltage at defined IB/IC ratios, and thermal resistance under standard mounting conditions.
Technical Context
This discrete NPN bipolar junction transistor operates in active or saturated switching mode, with base-emitter turn-on threshold ~0.7 V and guaranteed VCE(sat) ≤ 750 mV at IC = 500 mA / IB = 50 mA. Its fT of 250 MHz supports high-speed digital signal routing and pulse amplification up to tens of MHz.
Designed for robustness in industrial ambient environments (−65 °C to +150 °C), it features absolute maximum ratings including VCBO = 60 V, VEBO = 6 V, and Ptot = 250 mW at Tamb ≤ 25 °C on standard FR4 board - enabling reliable use in non-automotive embedded control nodes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 40 V - Maximum collector-emitter voltage before breakdown under open-base condition; defines safe switching window in 24 V and lower systems. |
| IC | 600 mA - Continuous DC collector current rating; supports driving small relays, LEDs, or logic-level MOSFET gates. |
| hFE | 100–300 - DC current gain at VCE = 1 V, IC = 150 mA; ensures predictable base drive sizing for saturation. |
| VCE(sat) | ≤ 750 mV - Collector-emitter saturation voltage at IC = 500 mA / IB = 50 mA; minimizes conduction loss in power-switching paths. |
| fT | 250 MHz - Transition frequency at VCE = 10 V, IC = 20 mA; confirms suitability for high-speed digital edge control and pulse shaping. |
| Rth(j-a) | 500 K/W - Junction-to-ambient thermal resistance on standard FR4 PCB; informs thermal margin calculation for continuous operation. |
Pinout & Package
SOT23 plastic surface-mount package: 3-terminal, 1.9 mm pitch, 2.9 mm × 1.3 mm × 1.0 mm body; optimized for reflow and wave soldering per Nexperia footprint guidelines (SOT023_FR/SOT023_FW).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Base (B) | Current-controlled input node; requires ≥15 mA peak base drive for full saturation at 500 mA collector load. |
| 2 | Emitter (E) | Common reference terminal; tied to system ground or low-side return path in switch configurations. |
| 3 | Collector (C) | High-side switched output node; connects to load (e.g., relay coil, LED anode) and supply rail via pull-up. |
Key Features
| Feature | Design Value |
|---|---|
| High DC current capability | 600 mA continuous IC enables direct drive of medium-power loads without external buffer stages. |
| Low saturation voltage | VCE(sat) ≤ 750 mV at IC/IB = 10 ensures <150 mW conduction loss at full rated current. |
| Fast switching performance | ton ≤ 35 ns and toff ≤ 250 ns support PWM frequencies up to 1–2 MHz in digital control loops. |
| Robust thermal design | 150 °C max junction temperature and −65 °C min storage temperature allow deployment in wide-temperature industrial enclosures. |
Applications
| Logic-Level Interface | Relay Driver |
|---|---|
|
Use Scenario: Level-shifting between 3.3 V microcontroller GPIO and 5 V/12 V peripheral logic inputs. IC Role / Device Role / Timing Role: NPN switch configured as low-side open-collector driver with pull-up resistor. Use Value: Guaranteed hFE ≥ 100 at IC = 10–50 mA ensures reliable turn-on with minimal MCU pin current. |
Use Scenario: Driving 5 V or 12 V electromagnetic relays in PLC I/O modules and HVAC controllers. IC Role / Device Role / Timing Role: Saturated switch controlling relay coil current with flyback diode protection. Use Value: 600 mA IC rating and 40 V VCEO safely handle typical relay coil currents (40–150 mA) with margin. |
| LED Current Switch | Small-Signal Amplifier |
|
Use Scenario: On/off control of multi-segment status LEDs or backlight arrays in industrial HMI panels. IC Role / Device Role / Timing Role: Constant-current switch with series resistor; operated in saturation for minimal voltage drop. Use Value: VCE(sat) ≤ 950 mV at IC = 150 mA keeps LED forward voltage stable and power dissipation low. |
Use Scenario: Low-gain preamplification stage for sensor signals (e.g., thermistor voltage dividers) in analog front-ends. IC Role / Device Role / Timing Role: Common-emitter amplifier biased in linear region with emitter degeneration. Use Value: hFE stability across 0.1–150 mA and fT = 250 MHz support bandwidth-critical signal conditioning up to ~10 MHz. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NPN switching transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PMBT4403,235 | PNP complement; same package, symmetric VCEO/IC ratings but opposite polarity. | Used in high-side switching or complementary push-pull stages where sourcing current is required. | Select when circuit topology demands PNP configuration or complementary pair matching. |
| BC847BW,115 | Same SOT23 package; hFE range 200–450 (higher gain), but lower IC = 100 mA and VCEO = 45 V. | Better suited for low-current amplification or sensitive switching; not recommended for >200 mA loads. | Choose for gain-critical, low-power bias networks - avoid for relay/LED drive above 150 mA. |
Compared with PMBT4401,235, the PMBT4403,235 provides polarity inversion for complementary designs, while BC847BW,115 trades higher hFE for reduced current handling - making PMBT4401,235 optimal for medium-current, cost-sensitive switching where gain consistency and thermal margin are prioritized.
Availability
PMBT4401,235 is available at Aetrix Electronics and suitable for industrial control interfaces, consumer appliance logic boards, and embedded sensor node power management requiring stable component supply and long-term production continuity.
Supply support for PMBT4401,235 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 essential semiconductors for automotive, industrial, and consumer markets.
The PMBT4401,235 belongs to Nexperia's general-purpose bipolar transistor product line, engineered for cost-effective, robust switching in non-automotive industrial and consumer electronics where qualification beyond AEC-Q200 is not required.
FAQ
Is PMBT4401,235 qualified for automotive applications?
No. Per Nexperia's revision history (v.5, October 2025), PMBT4401,235 is explicitly designated as non-automotive qualified. It lacks AEC-Q200 stress testing and automotive-grade process controls. For automotive use, Nexperia recommends its -Q qualified alternatives such as PBSS4041T,215.
What is the maximum allowable base current for continuous operation?
The absolute maximum peak base current (IBM) is 200 mA, but for continuous DC operation, base current must be limited to ensure junction temperature stays within 150 °C. With typical hFE ≥ 100 and IC ≤ 600 mA, recommended IB is 6–15 mA - verified by VBE(sat) ≤ 1.2 V and thermal resistance data.
Can PMBT4401,235 replace BC547 in existing designs?
Yes, with verification. Both are SOT23 NPN transistors, but PMBT4401,235 offers higher IC (600 mA vs. 100 mA), faster switching (toff ≤ 250 ns vs. ~500 ns), and tighter hFE distribution. Layout compatibility is confirmed; however, base resistor values may require recalculation due to differing gain and saturation characteristics.
Does the 235 suffix indicate tape-and-reel packaging?
Yes. The "235" suffix denotes 3,000-unit tape-and-reel packaging per IEC standard, compatible with automated SMT placement equipment. This differs from bulk or cut-tape variants (e.g., PMBT4401,115), and ensures consistent feeding and traceability in high-volume manufacturing.
PMBT4401,235 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:
- NPN
- 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, 1V
- Power - Max:
- 250 mW
- Frequency - Transition:
- 250MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-236AB
PMBT4401,235 FAQ
1.How can I place an order for PMBT4401,235 through Aetrix?
Please submit a Request for Quotation (RFQ) for PMBT4401,235 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 PMBT4401,235 reliable?
The price and inventory of PMBT4401,235 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PMBT4401,235 is usually 5 days.
3.What payment methods are accepted for PMBT4401,235?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PMBT4401,235 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PMBT4401,235?
PMBT4401,235 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PMBT4401,235 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 PMBT4401,235?
For technical support, including PMBT4401,235 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PMBT4401,235 requirements.
6.How does Aetrix verify that PMBT4401,235 is sourced from the original manufacturer or authorized distributors?
All PMBT4401,235 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 PMBT4401,235 meets industry standards.
7.What is the process for return or replacement of PMBT4401,235?
All PMBT4401,235 units undergo pre-shipment inspection (PSI). If there is an issue with PMBT4401,235, 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 PMBT4401,235 part is unused and in its original packaging.
Return procedure for PMBT4401,235:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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