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Nexperia USA Inc. PDTC144ETVL
- Part No.:
- PDTC144ETVL
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
PDTC144ETVL.pdf
- Description:
- TRANS PREBIAS NPN 50V TO236AB
- Quantity:
- Payment:
- Shipping:
Inventory:434
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Product details
Overview
PDTC144ET from Nexperia is an NPN resistor-equipped transistor (RET) in SOT23 package, designed for digital switching with 50 V VCEO, 100 mA IO, and integrated bias resistors R1 = R2 = 47 kΩ. It replaces discrete base-resistor configurations in load switching, IC input control, and industrial digital logic interfaces.
For engineers reviewing the PDTC144ET datasheet, PDTC144ET pinout, PDTC144ET application, or PDTC144ET equivalent, this page delivers verified electrical parameters, validated SOT23 terminal mapping, confirmed RET functional behavior, and direct alternatives for BC847-based designs requiring reduced BOM count and simplified drive circuitry.
Technical Context
This NPN RET integrates two precision bias resistors (R1 = 47 kΩ, R2/R1 = 1.0) to enable single-resistor drive from microcontroller GPIOs. Its internal structure eliminates external base resistors while maintaining predictable turn-on/off thresholds (VI(on) = 1.6 V typ, VI(off) = 1.2 V typ at 25 °C).
The device operates within a 50 V collector-emitter breakdown limit and delivers 100 mA output current with 150 mV VCE(sat) at IC = 10 mA / IB = 0.5 mA. Thermal resistance Rth(j-a) is 500 K/W on standard FR4 PCB, supporting ambient operation from –65 °C to +150 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 50 V - Maximum safe collector-emitter voltage with open base; defines upper rail limit for switching loads. |
| IO | 100 mA - Continuous output current capability; supports driving LEDs, small relays, or logic inputs without external current limiting. |
| R1 | 47 kΩ (33–61 kΩ) - Input bias resistor value; sets base current for reliable saturation with 3.3 V or 5 V MCU outputs. |
| VCE(sat) | 150 mV max at IC = 10 mA - Low saturation voltage ensures minimal power loss and heat generation during on-state operation. |
| hFE | 80 min at VCE = 5 V, IC = 5 mA - Guaranteed DC current gain enables predictable switching margin under defined bias conditions. |
| VI(on) | 1.6 V typ at VCE = 0.3 V - On-threshold voltage confirms compatibility with 1.8 V/3.3 V logic families without level shifting. |
| Ptot | 250 mW at Tamb ≤ 25 °C - Total power dissipation limit governs thermal design on standard FR4 PCB footprints. |
Pinout & Package
SOT23 (TO-236AB) plastic surface-mount package: 3-terminal, 1.9 mm pitch, 2.9 mm × 1.3 mm × 1.0 mm body. Standard footprint per Fig. 11 (reflow) and Fig. 12 (wave) in Nexperia datasheet v.10.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Input (base) | Connected internally to R1; accepts logic-level drive signal directly from MCU GPIO or digital controller output. |
| 2 | Ground (emitter) | Emitter terminal tied to system ground; provides return path for load current and reference for R2 bias network. |
| 3 | Output (collector) | Switched high-side output node; connects to load (e.g., LED anode, relay coil, or logic input pull-up) referenced to VCC. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated R1 + R2 bias network | Eliminates two external resistors, reducing PCB area and assembly cost while ensuring matched resistor ratio (R2/R1 = 1.0 ± 20%). |
| Guaranteed 100 mA output current | Supports direct drive of medium-current loads without external amplification or current boosting stages. |
| Low VCE(sat) (≤150 mV) | Minimizes conduction loss and self-heating in battery-powered or thermally constrained applications. |
| Wide operating temperature range | –65 °C to +150 °C ambient rating enables use in industrial control cabinets, motor drives, and outdoor equipment. |
| Standard SOT23 footprint | Ensures drop-in compatibility with existing pick-and-place tooling and reflow processes used for BC847 and similar transistors. |
Applications
| Industrial Digital Control | MCU GPIO Load Switching |
|---|---|
Use Scenario: Controlling solenoid valves and indicator LEDs in programmable logic controllers (PLCs) and HMI panels. IC Role / Device Role / Timing Role: NPN switch interfacing 24 V DC loads to 3.3 V microcontroller outputs via level-shift-free RET architecture. Use Value: Reduces component count by replacing BC847 + two base resistors, lowering BOM cost and improving manufacturing yield. |
Use Scenario: Driving optocoupler inputs or logic-level shifters in embedded sensor interface modules. IC Role / Device Role / Timing Role: Digital buffer stage isolating low-voltage MCU pins from higher-voltage peripheral circuits. Use Value: Enables direct connection without external biasing, preserving GPIO drive strength and simplifying layout routing. |
| Cost-Optimized Logic Interface | Board-Level Signal Conditioning |
Use Scenario: Replacing BC847 series transistors in consumer appliance control boards where space and cost are critical. IC Role / Device Role / Timing Role: Level translator and current amplifier for TTL/CMOS-compatible signal routing between subsystems. Use Value: Achieves identical functionality with one part instead of three, cutting assembly time and inventory SKUs. |
Use Scenario: Debouncing push-button inputs or cleaning noisy signals from mechanical switches in industrial HMIs. IC Role / Device Role / Timing Role: Schmitt-trigger-like switching element providing clean digital edges to microcontroller interrupt pins. Use Value: Built-in resistor hysteresis improves noise immunity over bare transistors, eliminating need for RC filtering networks. |
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 |
|---|---|---|---|
| BC847B | Discrete NPN transistor requiring external 47 kΩ base resistor; no built-in R2; hFE = 200–450 (wider spread). | Requires additional passive components and PCB area; less consistent turn-on behavior across temperature. | Select when precise hFE control or higher gain is needed, and board space allows discrete bias network. |
| PDTA144ET | PNP complement with identical R1/R2 values (47 kΩ), same SOT23 package, but inverted polarity and –50 V VECO. | Used for high-side switching or complementary logic gates; not interchangeable without circuit redesign. | Select for PNP-side switching in push-pull or dual-rail digital interfaces where sourcing current is required. |
Compared with BC847B, PDTC144ET reduces bill-of-materials and improves production consistency; compared with PDTA144ET, it serves complementary NPN roles-neither is pin- or functionally interchangeable without schematic revision.
Availability
PDTC144ET is available at Aetrix Electronics and suitable for industrial digital control, MCU GPIO load switching, and cost-optimized logic interface applications requiring stable component supply and long-term manufacturability.
Supply support for PDTC144ET 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 applications.
PDTC144ET belongs to Nexperia's Resistor-Equipped Transistor (RET) product line, engineered specifically to replace discrete BJT + resistor combinations in digital switching applications while maintaining SOT23 compatibility and production scalability.
FAQ
What is the maximum continuous collector current for PDTC144ET?
The PDTC144ET is rated for 100 mA continuous output current (IO) under standard conditions (Tamb ≤ 25 °C, FR4 PCB). Derating applies above 25 °C per the power derating curve in Figure 1, reaching zero at 125 °C ambient.
Can PDTC144ET be used with 1.8 V logic inputs?
Yes - its VI(on) is 1.6 V typical at IC = 2 mA, and VI(off) is 1.2 V typical, enabling reliable switching with 1.8 V CMOS outputs. Ensure sufficient drive current (≥55 µA) is available from the source.
How does the built-in R2 resistor affect circuit behavior?
R2 (47 kΩ) connects internally between base and emitter, providing active pull-down to ensure fast turn-off and prevent floating-base latch-up. This eliminates need for external base-emitter resistors and improves noise immunity in noisy industrial environments.
Is PDTC144ET qualified for automotive applications?
No - per Nexperia's 2023 datasheet revision history, PDTC144ET is explicitly designated as non-automotive qualified. For automotive use, select the -Q qualified variants (e.g., PDTC144ET-Q) which undergo AEC-Q101 stress testing and include extended reliability documentation.
PDTC144ETVL 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 - Pre-Biased
- Current - Collector (Ic) (Max):
- 100 mA
- Voltage - Collector Emitter Breakdown (Max):
- 50 V
- Resistor - Base (R1):
- 47 kOhms
- Resistor - Emitter Base (R2):
- 47 kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 80 @ 5mA, 5V
- Vce Saturation (Max) @ Ib, Ic:
- 150mV @ 500µA, 10mA
- Current - Collector Cutoff (Max):
- 1µA
- Frequency - Transition:
- -
- Power - Max:
- 250 mW
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-236AB
PDTC144ETVL FAQ
1.How can I place an order for PDTC144ETVL through Aetrix?
Please submit a Request for Quotation (RFQ) for PDTC144ETVL 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 PDTC144ETVL reliable?
The price and inventory of PDTC144ETVL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDTC144ETVL is usually 5 days.
3.What payment methods are accepted for PDTC144ETVL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDTC144ETVL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDTC144ETVL?
PDTC144ETVL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDTC144ETVL 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 PDTC144ETVL?
For technical support, including PDTC144ETVL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDTC144ETVL requirements.
6.How does Aetrix verify that PDTC144ETVL is sourced from the original manufacturer or authorized distributors?
All PDTC144ETVL 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 PDTC144ETVL meets industry standards.
7.What is the process for return or replacement of PDTC144ETVL?
All PDTC144ETVL units undergo pre-shipment inspection (PSI). If there is an issue with PDTC144ETVL, 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 PDTC144ETVL part is unused and in its original packaging.
Return procedure for PDTC144ETVL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PDTC144ETVL Tags
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MUN5211T1G
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