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Nexperia USA Inc. PMBT4401,215
- Part No.:
- PMBT4401,215
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Bipolar Transistors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
PMBT4401,215.pdf
- Description:
- TRANS NPN 40V 0.6A TO-236AB
- Quantity:
- Payment:
- Shipping:
Inventory:206,399
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Product details
Overview
PMBT4401,215 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. 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 PMBT4401,215 datasheet, PMBT4401,215 pinout, PMBT4401,215 application, or PMBT4401,215 equivalent, key selection criteria include verified VCEO/IC derating on FR4 PCB, hFE consistency at 150 mA bias, saturation voltage under 500 mA drive, and thermal resistance (Rth(j-a) = 500 K/W) in standard footprint mounting.
Technical Context
This discrete NPN bipolar junction transistor operates in active or saturated switching mode with base-emitter forward bias controlling collector current flow. Its design targets low-power digital signal amplification and load switching where precise current gain linearity and fast transient response are required.
The device adheres to IEC 60134 absolute maximum ratings, with VCEO = 40 V, IC = 600 mA, Ptot = 250 mW at Tamb ≤ 25 °C, and junction temperature limited to 150 °C. Thermal performance is specified for single-sided copper FR4 board mounting per standard SOT23 footprint.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 40 V - Maximum safe collector-emitter voltage with base open; defines upper rail limit in 3.3 V/5 V logic-level switch designs. |
| IC | 600 mA - Continuous DC collector current rating; supports driving small relays, LEDs, or MOSFET gates without heatsinking. |
| hFE | 100–300 - DC current gain at VCE = 1 V, IC = 150 mA, pulsed; enables predictable base drive sizing for saturation. |
| VCE(sat) | ≤ 750 mV at IC = 500 mA, IB = 50 mA - Low saturation voltage minimizes power loss and self-heating during on-state operation. |
| toff | ≤ 250 ns - Turn-off time under defined test conditions (ICon = 150 mA, IBoff = −15 mA); critical for PWM frequencies up to ~1 MHz. |
| Rth(j-a) | 500 K/W - Junction-to-ambient thermal resistance on standard FR4 PCB; determines allowable power dissipation at ambient temperatures. |
Pinout & Package
SOT23 plastic surface-mount package: 3-terminal, 1.9 mm pitch, 2.9 mm × 1.3 mm × 1.0 mm body. Mounting conforms to reflow footprint sot023_fr (0.6 mm solder lands, 3×).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Base (B) | Control terminal; requires ≥15 mA peak drive for full saturation at 500 mA collector load. |
| 2 | Emitter (E) | Current return path; connected to ground or low-side reference in common-emitter configurations. |
| 3 | Collector (C) | Load connection point; handles switched current up to 600 mA with ≤40 V across C–E. |
Key Features
| Feature | Design Value |
|---|---|
| High-speed switching | ton ≤ 35 ns, toff ≤ 250 ns - Enables clean edge transitions in 500 kHz–1 MHz digital control signals. |
| Low VCE(sat) | ≤ 750 mV at IC = 500 mA - Reduces conduction loss to < 375 mW, easing thermal management on compact PCBs. |
| Stable hFE range | 100–300 at 150 mA - Allows robust base resistor calculation across process variation without feedback compensation. |
| FR4-optimized thermal design | Rth(j-a) = 500 K/W on single-sided copper - Supports 250 mW dissipation without forced airflow or thermal vias. |
Applications
| LED Driver Circuit | Microcontroller GPIO Expander |
|---|---|
|
Use Scenario: Driving 20 mA–100 mA indicator or status LEDs from 3.3 V or 5 V MCU outputs. IC Role / Device Role / Timing Role: Low-side NPN switch controlled by MCU GPIO; provides current gain and isolation. Use Value: Enables direct drive of multiple LEDs without exceeding MCU pin current limits, using only one 10 kΩ base resistor per channel. |
Use Scenario: Extending digital output capability of resource-constrained microcontrollers (e.g., STM32G0, PIC16F). IC Role / Device Role / Timing Role: Discrete level-shifting and current-boosting buffer for GPIO-controlled peripherals. Use Value: Delivers 500 mA sink capability per channel while maintaining < 1 µs response to MCU output transitions. |
| Relay Coil Driver | Small-Signal Logic Interface |
|
Use Scenario: Activating 5 V or 12 V electromagnetic relays (e.g., 70 Ω coil, 170 mA hold current) from logic-level signals. IC Role / Device Role / Timing Role: Saturated switch providing coil current path to ground; absorbs flyback energy via external diode. Use Value: Guarantees reliable relay pull-in with 15 mA base drive and withstands 40 V inductive kickback when paired with 1N4007. |
Use Scenario: Interfacing between mixed-voltage logic families (e.g., 1.8 V FPGA I/O to 3.3 V sensor bus). IC Role / Device Role / Timing Role: Active pull-down stage enabling bidirectional level translation with minimal propagation delay. Use Value: Achieves sub-50 ns delay with < 10 pF load, preserving signal integrity in 10–25 MHz data lines. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NPN switching transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BC847BW,115 | Higher hFE (200–450), same SOT23, but VCEO = 45 V and IC = 100 mA - lower current capacity. | Preferred for low-current, high-gain biasing (e.g., amplifier stages); unsuitable for >150 mA loads. | Select when gain stability at µA–mA levels matters more than switching current capability. |
| PMBT2222A,215 | Same SOT23, VCEO = 40 V, but higher IC = 600 mA and hFE = 100–300 - nearly identical specs; fT = 250 MHz vs. 250 MHz (same). | Drop-in compatible in most layouts; slightly better fT margin and tighter hFE distribution per batch. | Choose for enhanced production yield in high-volume consumer electronics where parametric consistency is critical. |
Compared with BC847BW,115 and PMBT2222A,215, the PMBT4401,215 offers optimal balance of 600 mA drive, 40 V rating, and proven thermal behavior on FR4 - making it preferred for cost-sensitive industrial switching where both current and ruggedness are required.
Availability
PMBT4401,215 is available at Aetrix Electronics and suitable for LED driver circuits, microcontroller GPIO expansion, relay coil actuation, and small-signal logic interface applications requiring stable component supply and long-term obsolescence management.
Supply support for PMBT4401,215 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 automotive, industrial, and mobile markets.
The PMBT4401,215 belongs to Nexperia's general-purpose bipolar transistor product line, engineered for cost-effective, high-yield switching in consumer and industrial electronics where robustness and manufacturability are prioritized over ultra-high-frequency performance.
FAQ
What is the maximum continuous collector current for PMBT4401,215 under standard PCB conditions?
The PMBT4401,215 is rated for 600 mA continuous collector current (IC) when mounted on a standard FR4 PCB with single-sided copper and tin-plated finish. This rating assumes ambient temperature ≤25 °C and accounts for its 250 mW total power dissipation limit and 500 K/W thermal resistance.
Does PMBT4401,215 support automotive-grade applications?
No. Per Nexperia's revision history (v.5, October 2025), the PMBT4401,215 is explicitly designated as non-automotive qualified. It has not undergone AEC-Q101 stress testing or qualification for automotive environments. For automotive use, Nexperia recommends its -Q qualified alternatives such as PMBT4401-Q.
How does the hFE of PMBT4401,215 vary with collector current?
hFE is specified as 100–300 at IC = 150 mA and VCE = 1 V (pulsed). At IC = 500 mA, hFE drops to ≥40. The typical curve (Fig. 1) shows peak gain near 10–100 mA, declining above 200 mA - confirming suitability for medium-current switching rather than linear amplification.
Can PMBT4401,215 replace BC846 in existing designs?
Yes, with verification. Both are SOT23 NPN transistors, but PMBT4401,215 offers higher IC (600 mA vs. 100 mA) and higher VCEO (40 V vs. 65 V). Base drive requirements differ: BC846 hFE is 110–220 at 10 mA, while PMBT4401,215 requires higher base current for equivalent saturation at >100 mA loads. Layout and thermal validation are recommended.
PMBT4401,215 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
PMBT4401,215 FAQ
1.How can I place an order for PMBT4401,215 through Aetrix?
Please submit a Request for Quotation (RFQ) for PMBT4401,215 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 PMBT4401,215 reliable?
The price and inventory of PMBT4401,215 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PMBT4401,215 is usually 5 days.
3.What payment methods are accepted for PMBT4401,215?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PMBT4401,215 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PMBT4401,215?
PMBT4401,215 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PMBT4401,215 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 PMBT4401,215?
For technical support, including PMBT4401,215 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PMBT4401,215 requirements.
6.How does Aetrix verify that PMBT4401,215 is sourced from the original manufacturer or authorized distributors?
All PMBT4401,215 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 PMBT4401,215 meets industry standards.
7.What is the process for return or replacement of PMBT4401,215?
All PMBT4401,215 units undergo pre-shipment inspection (PSI). If there is an issue with PMBT4401,215, 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 PMBT4401,215 part is unused and in its original packaging.
Return procedure for PMBT4401,215:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PMBT4401,215 Tags
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