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NXP Semiconductors PDTC144TM,315
- Part No.:
- PDTC144TM,315
- Manufacturer:
- NXP Semiconductors
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- -
- Datasheet:
-
PDTC144TM,315.pdf
- Description:
- TRANS PREBIAS
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
PDTC144TM from Nexperia is an NPN resistor-equipped transistor with integrated 47 kΩ base bias resistor (R1), open R2 configuration, 50 V VCEO, 100 mA IO, and SOT883 ultra-small surface-mount package; used for space-constrained logic-level switching in portable interface circuits.
For engineers reviewing the PDTC144TM datasheet, PDTC144TM pinout, PDTC144TM application, or PDTC144TM equivalent, key selection criteria include built-in bias resistor value, thermal resistance (Rth(j-a) = 500 K/W), collector-emitter saturation voltage (≤150 mV at IC = 10 mA), and SC-101 footprint compatibility.
Technical Context
This device integrates a single NPN bipolar junction transistor with a precision 47 kΩ pull-up base resistor (R1) and no second resistor (R2 = open), enabling direct connection to CMOS/TTL logic without external bias components. It operates as a digital switch with guaranteed DC current gain (hFE ≥ 100 at IC = 1 mA) and low saturation voltage.
Designed for reflow-only assembly per SOT883 mounting guidelines, it supports ambient temperatures from −65 °C to +150 °C and features 2.5 pF collector capacitance at 10 V, ensuring fast switching in low-power signal routing applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 50 V - Maximum safe collector-emitter voltage before breakdown in open-base configuration |
| IO | 100 mA - Continuous DC output current capability under normal operating conditions |
| R1 | 47 kΩ - Integrated base bias resistor enabling direct logic-level drive without external components |
| VCE(sat) | ≤150 mV - Low saturation voltage ensures minimal power loss and heat generation during switching |
| Rth(j-a) | 500 K/W - Thermal resistance from junction to ambient, defining power derating on standard FR4 PCB |
| Cc | 2.5 pF - Collector capacitance at 10 V, limiting high-frequency response in switching applications |
Pinout & Package
SOT883 (SC-101) is a leadless ultra-small plastic package measuring 1.0 × 0.6 × 0.5 mm with three solder lands; optimized for high-density PCB layouts and automated reflow assembly only.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Base | Input terminal connected internally to R1; accepts logic-level drive directly from microcontroller GPIO |
| 2 | Emiter | Common emitter node tied to ground reference; forms return path for switched load current |
| 3 | Collector | Output terminal sourcing current to load; rated for 50 V and 100 mA continuous operation |
Key Features
| Feature | Design Value |
|---|---|
| Built-in 47 kΩ base resistor | Eliminates need for external bias network, reducing BOM count and PCB area by ≥2 components |
| Low VCE(sat) (≤150 mV) | Minimizes conduction loss in battery-powered systems, extending runtime in portable devices |
| SOT883 ultra-compact footprint | Enables placement in <1.0 mm² board area-critical for wearables and miniaturized IoT sensors |
| Reflow-soldering only design | Ensures mechanical reliability in high-volume SMT production with IPC-compliant thermal profiles |
Applications
| Smartphone Button Interface | Wearable Sensor Enable Control |
|---|---|
Use Scenario: Detecting mechanical button presses in smartphone side keys using GPIO-driven active-low detection. IC Role / Device Role / Timing Role: NPN switch translating mechanical closure into clean logic-level signal for AP/PMIC interrupt input. Use Value: Built-in R1 eliminates external pull-up, saving 0.4 mm² PCB area per key and simplifying layout routing. | Use Scenario: Enabling/disabling MEMS accelerometer power rail in fitness tracker during motion-detection sleep mode. IC Role / Device Role / Timing Role: Load switch controlling 3.3 V supply to sensor IC with fast turn-on (<1 µs) and low quiescent current. Use Value: ≤150 mV VCE(sat) limits voltage drop across switch, preserving sensor accuracy and minimizing self-heating. |
| USB-C Port Status Indicator | Bluetooth LE Module Reset Circuit |
Use Scenario: Driving bi-color LED status indicator on USB-C port to show connection/speed negotiation state. IC Role / Device Role / Timing Role: Current-limited NPN driver interfacing between USB controller GPIO and LED anode. Use Value: 100 mA IO rating supports dual-LED drive without external current-limiting resistors in series. | Use Scenario: Generating controlled reset pulse to Bluetooth SoC after power-up sequencing completes. IC Role / Device Role / Timing Role: Edge-triggered switch converting 3.3 V power-good signal into active-low reset assertion. Use Value: Guaranteed hFE ≥ 100 ensures reliable saturation even with marginal GPIO drive strength (e.g., 2 mA). |
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 |
|---|---|---|---|
| PDTA144TM | PNP complement with identical R1 = 47 kΩ, same SOT883 package and pinout | Used where active-high enable or high-side switching is required instead of low-side | Select when load must be connected between VCC and collector rather than emitter-to-ground |
| PDTC124TM | R1 = 22 kΩ (lower value), otherwise identical electrical and mechanical specs | Better suited for weaker GPIO drivers (e.g., 1.8 V logic) requiring higher base current | Choose when driving from low-voltage or high-impedance sources where 47 kΩ may cause slow turn-on |
Compared with PDTA144TM and PDTC124TM, PDTC144TM provides optimal base bias for 3.3 V/5 V logic interfaces with minimal component overhead, while maintaining identical thermal and footprint constraints in ultra-compact designs.
Availability
PDTC144TM is available at Aetrix Electronics and suitable for smartphone button interfaces, wearable sensor enable control, and USB-C status indication requiring stable component supply and consistent SOT883 packaging.
Supply support for PDTC144TM 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 semiconductors, spun off from NXP in 2017, specializing in high-volume, automotive-qualified logic, MOSFETs, and resistor-equipped transistors.
The PDTC144T series belongs to Nexperia's resistor-equipped transistor product line, engineered specifically for cost-sensitive, space-constrained digital switching applications in consumer and portable electronics.
FAQ
What is the exact pin configuration of PDTC144TM in SOT883?
PDTC144TM uses a standardized SOT883 pinout: Pin 1 is Base (connected to internal 47 kΩ resistor), Pin 2 is Emitter (ground reference), and Pin 3 is Collector (load connection). This matches the "Top view" diagram in the official Nexperia datasheet, confirmed via package outline drawing MHC507.
Can PDTC144TM replace a standard 2N3904 with external bias resistors?
Yes - PDTC144TM replaces a 2N3904 plus two external bias resistors in low-speed digital switching applications. Its integrated 47 kΩ R1 and open R2 replicate common-emitter biasing, but it lacks linear amplification optimization and is not recommended for analog gain stages.
Is reflow soldering mandatory for PDTC144TM?
Yes - Nexperia explicitly states reflow soldering is the only recommended method for PDTC144TM due to its SOT883 leadless construction and thermal profile requirements. Hand soldering risks solder joint voiding, thermal damage, or land detachment on fine-pitch PCBs.
What is the maximum junction temperature and how does it affect power dissipation?
The absolute maximum junction temperature is 150 °C. With Rth(j-a) = 500 K/W, the device dissipates up to 250 mW at Tamb = 25 °C, but power must be linearly derated above 25 °C - e.g., 125 mW at 75 °C ambient - to prevent exceeding Tj(max).
PDTC144TM,315 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Transistor Type:
- -
- Current - Collector (Ic) (Max):
- -
- Voltage - Collector Emitter Breakdown (Max):
- -
- Resistor - Base (R1):
- -
- Resistor - Emitter Base (R2):
- -
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- -
- Vce Saturation (Max) @ Ib, Ic:
- -
- Current - Collector Cutoff (Max):
- -
- Frequency - Transition:
- -
- Power - Max:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
PDTC144TM,315 FAQ
1.How can I place an order for PDTC144TM,315 through Aetrix?
Please submit a Request for Quotation (RFQ) for PDTC144TM,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 PDTC144TM,315 reliable?
The price and inventory of PDTC144TM,315 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDTC144TM,315 is usually 5 days.
3.What payment methods are accepted for PDTC144TM,315?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDTC144TM,315 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDTC144TM,315?
PDTC144TM,315 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDTC144TM,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 PDTC144TM,315?
For technical support, including PDTC144TM,315 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDTC144TM,315 requirements.
6.How does Aetrix verify that PDTC144TM,315 is sourced from the original manufacturer or authorized distributors?
All PDTC144TM,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 PDTC144TM,315 meets industry standards.
7.What is the process for return or replacement of PDTC144TM,315?
All PDTC144TM,315 units undergo pre-shipment inspection (PSI). If there is an issue with PDTC144TM,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 PDTC144TM,315 part is unused and in its original packaging.
Return procedure for PDTC144TM,315:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PDTC144TM,315 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
Nexperia USA Inc.
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PDTC143ET,215
Nexperia USA Inc.
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PDTC143XT,215
Nexperia USA Inc.
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MMUN2211LT1G
onsemi
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PDTC144ET,215
Nexperia USA Inc.
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PDTC124ET,215
Nexperia USA Inc.
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