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Nexperia USA Inc. PDTC144VU,115
- Part No.:
- PDTC144VU,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- SC-70, SOT-323
- Datasheet:
-
PDTC144VU,115.pdf
- Description:
- TRANS PREBIAS NPN 50V SOT323
- Quantity:
- Payment:
- Shipping:
Inventory:9,562
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Product details
Overview
PDTC144VU from Nexperia is an NPN resistor-equipped transistor (RET) in SOT323 (SC-70) package, designed for general-purpose switching with integrated bias network (R1 = 47 kΩ, R2 = 10 kΩ), 50 V VCEO, 100 mA IO, and 200 mW Ptot. It replaces discrete base-resistor + transistor combinations in logic-level interface circuits, LED drivers, and microcontroller I/O buffers.
For engineers reviewing the PDTC144VU datasheet, PDTC144VU pinout, PDTC144VU application, or PDTC144VU equivalent, this device is selected for compact DC switching where input voltage compatibility (VI(on) = 3.8 V typ at IC = 2 mA), low saturation voltage (VCEsat = 150 mV max), and built-in resistor ratio (R2/R1 = 0.21 typ) reduce layout complexity and BOM count.
Technical Context
This RET integrates two precision thin-film resistors (R1 between base and input, R2 between base and emitter) to form a monolithic current-limiting switch. Its fixed R2/R1 ratio of 0.21 enables predictable DC current gain (hFE ≥ 40 at IC = 5 mA, VCE = 5 V) without external bias tuning.
The device operates as a saturated switch under standard logic drive conditions: VI(on) ≤ 3.8 V ensures reliable turn-on from 3.3 V or 5 V CMOS outputs, while VI(off) ≥ 3.1 V guarantees robust noise immunity against false triggering below 3 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 50 V - Maximum collector-emitter blocking voltage before breakdown; supports 24 V industrial control rails with safety margin. |
| IO | 100 mA - Continuous DC output current capability; sufficient for driving small relays, LEDs, or logic gates. |
| R1 | 47 kΩ ±28% - Input bias resistor value; sets base current for defined switching threshold with 3.3 V/5 V logic. |
| R2/R1 | 0.21 - Fixed internal resistor ratio; determines feedback fraction for stable saturation and predictable hFE behavior. |
| VCEsat | 150 mV max - Low saturation voltage at IC = 10 mA, IB = 0.5 mA; minimizes power loss and self-heating in on-state. |
| Ptot | 200 mW - Total power dissipation limit at Tamb = 25 °C; defines thermal derating envelope for SOT323 mounting. |
| hFE | ≥40 - Minimum DC current gain at VCE = 5 V, IC = 5 mA; ensures reliable switching with adequate overdrive margin. |
Pinout & Package
SOT323 (SC-70) is a 3-lead surface-mount plastic package measuring 2.2 × 1.35 × 0.9 mm, optimized for high-density PCB layouts and reflow soldering.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Input (base) | Connected internally to R1; accepts logic-level drive signal; requires no external pull-up/down. |
| 2 | GND (emitter) | Emitter terminal tied to system ground; serves as common reference for input and output paths. |
| 3 | Output (collector) | Switched high-side output node; connects to load (e.g., LED anode or relay coil) referenced to VCC. |
Key Features
| Feature | Design Value |
|---|---|
| Built-in bias resistors R1/R2 | Eliminates need for two external SMD resistors, reducing footprint by ~0.8 mm² and assembly steps. |
| Fixed R2/R1 ratio | 0.21 typ ensures consistent saturation behavior across production lots, simplifying design validation. |
| Low VCEsat | 150 mV max at rated current enables <15 mW conduction loss in 100 mA loads, improving thermal margin. |
| Logic-compatible VI(on) | 3.8 V typical turn-on voltage allows direct interfacing with 3.3 V and 5 V microcontrollers without level-shifting. |
| SOT323 package | SC-70 outline supports automated placement and reflow, with 625 K/W junction-to-ambient thermal resistance. |
Applications
| LED Driver Circuit | Microcontroller I/O Buffer |
|---|---|
Use Scenario: Driving single-color indicator LEDs from MCU GPIO pins with limited current sourcing capability. IC Role / Device Role / Timing Role: NPN switch controlling LED cathode path to ground; acts as level-translating current amplifier. Use Value: Built-in R1/R2 eliminates external bias components, enabling direct 3.3 V GPIO drive with guaranteed saturation at 20 mA LED current. |
Use Scenario: Isolating and amplifying digital signals between mixed-voltage subsystems (e.g., 3.3 V MCU to 5 V peripheral). IC Role / Device Role / Timing Role: Digital buffer/inverter stage providing voltage translation and current gain for signal integrity. Use Value: VI(on) = 3.8 V typ ensures clean turn-on from 3.3 V logic while VI(off) ≥ 3.1 V prevents false triggering from noise on shared bus lines. |
| Relay Coil Driver | Logic-Level Inverter |
Use Scenario: Switching 12 V/24 V electromagnetic relay coils in industrial PLC I/O modules. IC Role / Device Role / Timing Role: High-side switch (collector-connected to coil) with flyback diode integration support. Use Value: 50 V VCEO rating accommodates relay back-EMF spikes up to 40 V, and 100 mA IO covers typical 24 V/100 Ω coil requirements. |
Use Scenario: Implementing active-low logic inversion in space-constrained consumer electronics (e.g., reset signal conditioning). IC Role / Device Role / Timing Role: Single-transistor inverter with integrated bias network replacing discrete BJT + two resistors. Use Value: Reduces component count by 2 parts per channel and occupies only 2.2 × 1.35 mm PCB area-critical for ultra-thin wearables. |
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 |
|---|---|---|---|
| PDTC124E,115 | R1 = 22 kΩ, R2 = 47 kΩ → R2/R1 = 2.14; higher base current, lower VI(on) (~1.4 V). | Better suited for 1.8 V logic interfaces but less noise-immune in noisy environments. | Select when driving from low-voltage ASICs or battery-powered sensors requiring sub-2 V turn-on. |
| NSV12201MUTBG | Same SOT323 package; R1 = 47 kΩ, R2 = 10 kΩ (identical ratio); higher Ptot = 300 mW. | Supports higher continuous current in thermally constrained designs due to improved thermal resistance. | Choose for extended-duty-cycle applications like PWM-driven LED dimming where 200 mW may be limiting. |
Compared with PDTC144VU, PDTC124E offers lower VI(on) for low-voltage systems but reduced noise margin, while NSV12201MUTBG provides identical biasing with 50% higher power handling-making it preferable for thermally demanding 100 mA DC loads.
Availability
PDTC144VU is available at Aetrix Electronics and suitable for LED driver circuits, microcontroller I/O buffering, relay coil switching, and logic-level inversion requiring stable component supply and long-term obsolescence management.
Supply support for PDTC144VU 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 automotive, industrial, computing, and consumer markets.
The PDTC144VU belongs to Nexperia's resistor-equipped transistor (RET) product line, engineered to simplify digital interface design by integrating precision bias networks into compact SMT packages for cost-sensitive, high-volume applications.
FAQ
What is the maximum operating temperature for PDTC144VU?
The PDTC144VU has a maximum junction temperature (Tj) of 150 °C and a storage temperature range of −65 °C to +150 °C. Its thermal resistance Rth(j-a) is 625 K/W in free air, meaning ambient temperature must be derated above 25 °C when dissipating more than ~160 mW to stay within safe Tj limits.
Can PDTC144VU replace a standard NPN transistor with external base resistors?
Yes-PDTC144VU directly substitutes discrete NPN transistors (e.g., BC847) plus two bias resistors in switching applications. Its integrated R1 = 47 kΩ and R2 = 10 kΩ eliminate layout dependency and tolerance stacking, delivering repeatable VI(on)/VI(off) performance without manual resistor selection or placement.
Is PDTC144VU RoHS compliant and halogen-free?
Yes-PDTC144VU meets RoHS Directive 2011/65/EU and is halogen-free per Nexperia's standard product compliance policy. The device carries the "HF" marking on reel packaging and conforms to JEDEC J-STD-020 moisture sensitivity level 1 (MSL1), suitable for standard reflow profiles.
Does PDTC144VU require a flyback diode when driving inductive loads?
Yes-when switching relay coils or other inductive loads, an external flyback diode (e.g., 1N4148) must be placed across the load to clamp inductive kickback. PDTC144VU's 50 V VCEO rating provides margin for typical 24 V systems, but sustained voltage spikes beyond this will cause permanent damage without clamping.
PDTC144VU,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- 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):
- 10 kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 40 @ 5mA, 5V
- Vce Saturation (Max) @ Ib, Ic:
- 150mV @ 500µA, 10mA
- Current - Collector Cutoff (Max):
- 1µA
- Frequency - Transition:
- -
- Power - Max:
- 200 mW
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-323
PDTC144VU,115 FAQ
1.How can I place an order for PDTC144VU,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for PDTC144VU,115 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 PDTC144VU,115 reliable?
The price and inventory of PDTC144VU,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDTC144VU,115 is usually 5 days.
3.What payment methods are accepted for PDTC144VU,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDTC144VU,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDTC144VU,115?
PDTC144VU,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDTC144VU,115 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 PDTC144VU,115?
For technical support, including PDTC144VU,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDTC144VU,115 requirements.
6.How does Aetrix verify that PDTC144VU,115 is sourced from the original manufacturer or authorized distributors?
All PDTC144VU,115 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 PDTC144VU,115 meets industry standards.
7.What is the process for return or replacement of PDTC144VU,115?
All PDTC144VU,115 units undergo pre-shipment inspection (PSI). If there is an issue with PDTC144VU,115, 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 PDTC144VU,115 part is unused and in its original packaging.
Return procedure for PDTC144VU,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PDTC144VU,115 Tags
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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
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DRDNB16W-7
Diodes Incorporated
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PDTC114ET,215
Nexperia USA Inc.
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PDTC143ZT,215
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PDTC143ET,215
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PDTC143XT,215
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MMUN2211LT1G
onsemi
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PDTC144ET,215
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PDTC124ET,215
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