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NXP Semiconductors PDTA144TM,315
- Part No.:
- PDTA144TM,315
- Manufacturer:
- NXP Semiconductors
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- -
- Datasheet:
-
PDTA144TM,315.pdf
- Description:
- TRANS PREBIAS PNP 250MW SOT883
- Quantity:
- Payment:
- Shipping:
Inventory:130,000
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Product details
Overview
PDTA144TM,315 from Nexperia is a PNP resistor-equipped transistor with integrated 47 kΩ base bias resistor (R1), open R2 configuration, −50 V VCEO, −100 mA IO, and SOT883 (SC-101) ultra-small leadless package. It functions as a single-stage digital switch or level-shifter in space-constrained low-power logic interfaces.
For engineers reviewing the PDTA144TM,315 datasheet, PDTA144TM,315 pinout, PDTA144TM,315 application, or PDTA144TM,315 equivalent, key selection criteria include its built-in bias network, −150 mV VCEsat at −10 mA/−0.5 mA drive, thermal resistance of 500 K/W, and compatibility with reflow-only assembly on FR4 substrates.
Technical Context
This device integrates a monolithic PNP bipolar junction transistor with a precision 47 kΩ input resistor (R1) and no second resistor (R2 = open), enabling direct connection to CMOS/TTL logic without external bias components. Its SOT883 footprint supports high-density PCB layouts in portable and wearable electronics.
Designed for DC switching and linear amplification up to 100 mA, it delivers guaranteed hFE ≥ 100 at −1 mA collector current and −5 V VCE, with cut-off leakage below −1 μA ICEO and −100 nA ICBO under rated voltage stress.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | −50 V: Maximum safe collector-emitter reverse voltage before breakdown in open-base configuration |
| IO | −100 mA: Continuous DC output current capability without thermal derating at Tamb ≤ 25 °C |
| R1 | 47 kΩ: Integrated base bias resistor enabling direct logic-level drive without external components |
| VCEsat | −150 mV: Low saturation voltage ensures minimal power loss and heat generation in switching mode |
| hFE | ≥100: Minimum DC current gain at −1 mA IC, −5 V VCE, supporting reliable signal amplification |
| Rth(j-a) | 500 K/W: Thermal resistance from junction to ambient under standard SOT883 mounting on FR4 with 60 μm copper |
| Cc | 3 pF: Collector capacitance at −10 V VCB, 1 MHz - critical for high-speed switching edge integrity |
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 automated reflow assembly only.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Base) | Input control node connected internally to R1 | Accepts logic-level input; internal 47 kΩ resistor pulls base toward emitter for defined turn-on threshold |
| 2 (Emitter) | Reference terminal for current sink path | Connected directly to ground or low-side rail; defines common reference for switching operation |
| 3 (Collector) | Output current sink terminal | Drives load to ground when active; rated for −50 V reverse blocking and −100 mA continuous conduction |
Key Features
| Feature | Design Value |
|---|---|
| Built-in 47 kΩ base resistor | Eliminates need for external bias network, reducing BOM count and layout area by ≥2 components per switch |
| −150 mV VCEsat at −10 mA | Minimizes conduction loss in battery-powered systems, extending runtime in 3.3 V/5 V logic interfaces |
| SOT883 ultra-small footprint | 1.0 × 0.6 mm body enables placement in <1.5 mm pitch layouts typical in wearables and IoT sensors |
| Reflow-only assembly compatibility | Validated for Pb-free reflow profiles only - prevents damage during hand-soldering or wave processes |
Applications
| LED Driver Circuit | Microcontroller GPIO Expander |
|---|---|
Use Scenario: Driving discrete indicator LEDs from 3.3 V MCU outputs with current limiting via external resistor. IC Role / Device Role / Timing Role: PNP switch sinking LED anode current to ground; operates in saturated mode with fixed base drive. Use Value: Eliminates need for separate base resistor, reducing component count and PCB real estate while maintaining <2 mA LED current accuracy. |
Use Scenario: Level-shifting 1.8 V I²C signals to 5 V peripherals in mixed-voltage embedded systems. IC Role / Device Role / Timing Role: Active-pull-up switch enabling bidirectional open-drain bus translation without timing skew. Use Value: Delivers sub-100 ns turn-off delay and <150 mV low-state voltage, preserving I²C timing margins and noise immunity. |
| Low-Power Sensor Interface | Portable Audio Amplifier Bias |
Use Scenario: Enabling/disabling analog sensor supply rails in sleep-wake cycles of battery-operated environmental monitors. IC Role / Device Role / Timing Role: High-side switch controlling VCC to sensor ICs; driven by MCU GPIO in active-low configuration. Use Value: Achieves <1 μA off-state leakage and <150 mV on-resistance-equivalent drop, minimizing quiescent current and supply loss. |
Use Scenario: Providing stable bias current to Class AB audio amplifier input stages in Bluetooth earbuds. IC Role / Device Role / Timing Role: Constant-current source configured with emitter degeneration resistor for thermal stability. Use Value: Maintains hFE-stable bias over −40 °C to +85 °C ambient, preventing distortion drift across operating temperature range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PNP resistor-equipped transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PDTC144TM,315 | NPN complement with identical R1 = 47 kΩ, same SOT883 package, but opposite polarity and drive logic | Requires active-high control instead of active-low; unsuitable for high-side switching without level inversion | Select when sourcing current from VCC rather than sinking to ground |
| PDTA124TM,315 | Same PNP topology but R1 = 22 kΩ, resulting in higher base current and lower input impedance | Better suited for driving heavier loads (>50 mA) or interfacing with higher-output-impedance sources | Choose when faster switching or improved noise immunity against floating inputs is required |
Compared with PDTC144TM,315 and PDTA124TM,315, PDTA144TM,315 provides optimal balance of input sensitivity, saturation efficiency, and board-area savings for low-current active-low switching in ultra-compact designs.
Availability
PDTA144TM,315 is available at Aetrix Electronics and suitable for LED driver circuits, microcontroller GPIO expansion, low-power sensor interface, and portable audio amplifier bias requiring stable component supply and consistent SOT883 packaging.
Supply support for PDTA144TM,315 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, formed in 2017 from the former NXP Standard Products division, specializing in high-volume, high-reliability components for automotive, industrial, and consumer markets.
The PDTA144T series belongs to Nexperia's resistor-equipped transistor product line, engineered specifically to reduce design complexity and assembly cost in digital interface and power management circuits.
FAQ
Is PDTA144TM,315 compatible with lead-free reflow soldering?
Yes - PDTA144TM,315 is qualified for Pb-free reflow soldering only, per datasheet Note 2. Its SOT883 package requires peak temperatures up to 260 °C with controlled ramp rates; wave soldering and hand-soldering are not recommended due to thermal stress risks and solder joint reliability concerns.
What is the maximum operating temperature for continuous use?
The absolute maximum junction temperature is 150 °C, and the specified operating ambient temperature range is −65 °C to +150 °C. At full 100 mA load, thermal derating begins above 25 °C ambient due to its 500 K/W Rth(j-a); sustained operation above 85 °C ambient requires PCB copper thermal relief or forced airflow.
Can PDTA144TM,315 replace a standard PNP transistor like BC807?
No - PDTA144TM,315 is not a drop-in replacement for discrete transistors such as BC807 because it includes an integrated 47 kΩ base resistor and lacks a standalone base terminal. Substitution requires circuit redesign to remove external bias components and verify logic polarity compatibility.
Does R2 being "open" affect switching speed or noise immunity?
Yes - the absence of R2 (open) eliminates a parallel discharge path for base charge, slightly increasing turn-off time versus dual-resistor RETs. However, its 3 pF collector capacitance and −150 mV VCEsat maintain robust noise immunity in 3.3 V logic environments, especially when used with short PCB traces and local decoupling.
PDTA144TM,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:
- -
PDTA144TM,315 FAQ
1.How can I place an order for PDTA144TM,315 through Aetrix?
Please submit a Request for Quotation (RFQ) for PDTA144TM,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 PDTA144TM,315 reliable?
The price and inventory of PDTA144TM,315 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDTA144TM,315 is usually 5 days.
3.What payment methods are accepted for PDTA144TM,315?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDTA144TM,315 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDTA144TM,315?
PDTA144TM,315 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDTA144TM,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 PDTA144TM,315?
For technical support, including PDTA144TM,315 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDTA144TM,315 requirements.
6.How does Aetrix verify that PDTA144TM,315 is sourced from the original manufacturer or authorized distributors?
All PDTA144TM,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 PDTA144TM,315 meets industry standards.
7.What is the process for return or replacement of PDTA144TM,315?
All PDTA144TM,315 units undergo pre-shipment inspection (PSI). If there is an issue with PDTA144TM,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 PDTA144TM,315 part is unused and in its original packaging.
Return procedure for PDTA144TM,315:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PDTA144TM,315 Tags
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MUN5211T1G
onsemi
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DTC043ZEBTL
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DTC114EKAT146
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DDTD113ZC-7-F
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DRDNB16W-7
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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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