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NXP Semiconductors PDTC144WMB,315
- Part No.:
- PDTC144WMB,315
- Manufacturer:
- NXP Semiconductors
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- SC-101, SOT-883
- Datasheet:
-
PDTC144WMB,315.pdf
- Description:
- TRANS PREBIAS NPN 50V 0.1A 3DFN
- Quantity:
- Payment:
- Shipping:
Inventory:140,000
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Product details
Overview
PDTC144WMB from Nexperia is an NPN resistor-equipped transistor (RET) in a leadless DFN1006B-3 (SOT883B) package, designed for digital switching in space-constrained applications. It integrates 47 kΩ input bias resistor (R1) and 22 kΩ feedback resistor (R2), delivers 100 mA output current, supports 50 V collector-emitter voltage, and is AEC-Q101 qualified for automotive use.
For engineers reviewing the PDTC144WMB datasheet, PDTC144WMB pinout, PDTC144WMB application, or PDTC144WMB equivalent, this device serves as a drop-in replacement for discrete BJT + resistor networks in low-power logic interfacing, I/O buffering, and peripheral control where board area, assembly cost, and thermal performance are critical.
Technical Context
This RET implements a monolithic NPN transistor with two integrated precision bias resistors-R1 connected between base and input, R2 between base and emitter-enabling single-pin drive operation without external components. Its internal topology eliminates base floating risk and ensures predictable turn-on/turn-off behavior under varying load conditions.
The device operates with VI(on) = 2.7–4.0 V at IC = 2 mA and VI(off) = 1.2–1.7 V at IC = 100 µA, providing robust noise immunity in noisy digital environments. Thermal resistance Rth(j-a) is 500 K/W on FR4 PCB, supporting continuous operation up to 150 °C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 50 V maximum - enables safe interface with 3.3 V, 5 V, and 24 V logic domains without external clamping. |
| IO | 100 mA continuous - sufficient to drive LEDs, small relays, MOSFET gates, or microcontroller I/O buffers directly. |
| R1 | 47 kΩ ±28% - sets input current threshold for reliable transistor activation across temperature and process variation. |
| R2/R1 ratio | 0.47 ±21% - determines internal feedback strength, stabilizing DC operating point and improving β tolerance. |
| VCE(sat) | ≤150 mV at IC = 10 mA / IB = 0.5 mA - minimizes conduction loss and self-heating in battery-powered systems. |
| fT | 230 MHz typical - supports fast digital switching (tON/tOFF < 10 ns) in high-speed GPIO and signal routing. |
| Ptot | 250 mW at Tamb ≤25 °C - defines thermal design envelope for compact layouts with minimal copper pour. |
Pinout & Package
DFN1006B-3 (SOT883B) is a leadless ultra-small surface-mount package measuring 1.0 × 0.6 × 0.37 mm, optimized for automated placement and high-density PCBs. Its low profile and thermal pad-free construction simplify reflow profiling and reduce solder joint stress.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Input (base via R1) | Single-point logic-level input; internally connected to R1 - no external base resistor required. |
| 2 | GND (emitter) | Emitter tied to system ground; serves as common reference and return path for output current. |
| 3 | Output (collector) | Switched high-side output node; connects to load (e.g., LED anode, relay coil, or downstream gate). |
Key Features
| Feature | Design Value |
|---|---|
| Integrated bias network | Eliminates 2 external resistors per switch, reducing BOM count and layout area by ≥30% vs discrete BJT solutions. |
| AEC-Q101 qualification | Validated for automotive-grade reliability including HTOL, TC, and ESD testing - suitable for under-hood and infotainment modules. |
| Ultra-small footprint | DFN1006B-3 occupies only 0.6 mm² PCB area - ideal for wearables, hearing aids, and miniaturized IoT sensors. |
| Low saturation voltage | VCE(sat) ≤150 mV ensures <15 mW power dissipation at 100 mA - extends battery life in portable devices. |
| High fT | 230 MHz transition frequency enables clean edge integrity in 10–20 MHz clock gating and PWM dimming circuits. |
Applications
| Mobile Peripheral Control | Automotive Body Electronics |
|---|---|
|
Use Scenario: Driving RGB LED indicators and tactile feedback actuators in smartphones and smartwatches. IC Role / Device Role / Timing Role: Digital switch controlling current path to low-voltage loads with precise on/off timing. Use Value: Reduces component count by replacing BJT + dual-resistor network, saving 0.8 mm² PCB area per channel. |
Use Scenario: Interfacing microcontroller GPIOs to door lock solenoids, mirror position sensors, and interior lighting modules. IC Role / Device Role / Timing Role: Level-shifting and current-boosting interface between 3.3 V MCU outputs and 12 V automotive loads. Use Value: AEC-Q101 qualification and 50 V VCEO ensure robust operation in 12 V/24 V vehicle electrical systems with load dump transients. |
| Industrial Sensor Interface | Consumer Audio I/O Buffering |
|
Use Scenario: Enabling/disabling analog sensor supply rails (e.g., pressure, humidity) in programmable logic controllers. IC Role / Device Role / Timing Role: Low-leakage enable switch with <1 µA ICEO - prevents unintended sensor bias during sleep modes. Use Value: Integrated R1/R2 network guarantees consistent turn-on threshold across -40 °C to +125 °C ambient range. |
Use Scenario: Isolating headphone amplifier enable signals from SoC GPIOs in Bluetooth earbuds and portable speakers. IC Role / Device Role / Timing Role: Noise-immune digital buffer with VI(off) ≤1.7 V - rejects RF coupling and digital crosstalk. Use Value: 230 MHz fT ensures sub-5 ns propagation delay, preserving audio subsystem timing margins. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NPN resistor-equipped transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PDTC124WMB | R1 = 22 kΩ, R2 = 47 kΩ → higher input sensitivity but lower noise margin (VI(on) ≈ 1.8 V). | Better suited for 1.8 V logic interfaces; less tolerant of supply ripple or EMI. | Select when driving from low-voltage MCUs (e.g., ARM Cortex-M0+) with tight VOH margins. |
| EMD1020X | Dual-channel RET in SOT-363; R1 = 47 kΩ, R2 = 22 kΩ per channel; Ptot = 300 mW. | Enables dual independent switches in same footprint - reduces interconnect complexity in multi-signal systems. | Choose for space-constrained designs requiring ≥2 synchronized RETs (e.g., H-bridge pre-driver, dual LED channels). |
Compared with PDTC144WMB, PDTC124WMB offers earlier turn-on but reduced noise immunity, while EMD1020X trades single-channel optimization for integration density - both require layout and thermal reassessment due to differing package thermal resistance and pinout.
Availability
PDTC144WMB is available at Aetrix Electronics and suitable for mobile peripheral control, automotive body electronics, and industrial sensor interface applications requiring stable component supply, long-term lifecycle support, and AEC-Q101-compliant sourcing.
Supply support for PDTC144WMB 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 leader in discrete, logic, and PowerMOS semiconductors, spun off from NXP in 2017 and focused on high-volume, high-reliability components for automotive, industrial, and consumer markets.
PDTC144WMB belongs to Nexperia's Resistor-Equipped Transistor (RET) product line, engineered to replace discrete BJT-resistor combinations in digital switching applications where miniaturization, assembly efficiency, and automotive qualification are mandatory.
FAQ
What is the maximum allowable input voltage applied to Pin 1?
The absolute maximum input voltage (VI) is +40 V positive and −10 V negative, per the limiting values table. Exceeding these risks permanent damage to the integrated R1 resistor or base-emitter junction. For 3.3 V or 5 V logic interfaces, no series limiting resistor is needed due to built-in R1.
Can PDTC144WMB be used in linear amplification mode?
No - PDTC144WMB is optimized for saturated switching operation only. Its integrated resistors fix the base bias point, and its hFE specification (min 60 at IC = 5 mA) is characterized for digital on/off states, not analog gain linearity. Use a standard BJT like BC847 for amplification.
Is thermal pad connection required for DFN1006B-3 package?
No - the DFN1006B-3 (SOT883B) package has no exposed thermal pad. Heat dissipation occurs through the three solder lands and silicon die. Standard FR4 PCB layout with minimum 0.3 mm trace width to each terminal meets thermal requirements up to 250 mW at 25 °C ambient.
How does the R2/R1 ratio affect switching behavior?
The R2/R1 ratio of 0.47 sets the internal feedback factor, which stabilizes the base voltage during conduction and improves immunity to leakage-induced false turn-on. A lower ratio increases feedback strength, raising the effective VI(off) threshold and reducing sensitivity to stray capacitance or ESD coupling.
PDTC144WMB,315 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- SC-101, SOT-883
- Packaging:
- Bulk
- Product Status:
- Active
- Transistor Type:
- NPN - Pre-Biased
- Current - Collector (Ic) (Max):
- 100 mA
- Voltage - Collector Emitter Breakdown (Max):
- 50 V
- Resistor - Base (R1):
- 47 kOhms
- Resistor - Emitter Base (R2):
- 22 kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 60 @ 5mA, 5V
- Vce Saturation (Max) @ Ib, Ic:
- 150mV @ 500µA, 10mA
- Current - Collector Cutoff (Max):
- 1µA
- Frequency - Transition:
- 230 MHz
- Power - Max:
- 250 mW
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DFN1006B-3
PDTC144WMB,315 FAQ
1.How can I place an order for PDTC144WMB,315 through Aetrix?
Please submit a Request for Quotation (RFQ) for PDTC144WMB,315 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 PDTC144WMB,315 reliable?
The price and inventory of PDTC144WMB,315 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDTC144WMB,315 is usually 5 days.
3.What payment methods are accepted for PDTC144WMB,315?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDTC144WMB,315 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDTC144WMB,315?
PDTC144WMB,315 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDTC144WMB,315 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 PDTC144WMB,315?
For technical support, including PDTC144WMB,315 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDTC144WMB,315 requirements.
6.How does Aetrix verify that PDTC144WMB,315 is sourced from the original manufacturer or authorized distributors?
All PDTC144WMB,315 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 PDTC144WMB,315 meets industry standards.
7.What is the process for return or replacement of PDTC144WMB,315?
All PDTC144WMB,315 units undergo pre-shipment inspection (PSI). If there is an issue with PDTC144WMB,315, 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 PDTC144WMB,315 part is unused and in its original packaging.
Return procedure for PDTC144WMB,315:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PDTC144WMB,315 Tags
-
MUN5211T1G
onsemi
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DTC043ZEBTL
Rohm Semiconductor
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DTC114EKAT146
Rohm Semiconductor
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DDTD113ZC-7-F
Diodes Incorporated
-
DRDNB16W-7
Diodes Incorporated
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PDTC114ET,215
Nexperia USA Inc.
-
PDTC143ZT,215
Nexperia USA Inc.
-
PDTC143ET,215
Nexperia USA Inc.
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PDTC143XT,215
Nexperia USA Inc.
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MMUN2211LT1G
onsemi
-
PDTC144ET,215
Nexperia USA Inc.
-
PDTC124ET,215
Nexperia USA Inc.
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