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Home > Products > Discrete Semiconductor Products > Transistors > Bipolar (BJT) > Single, Pre-Biased Bipolar Transistors

Nexperia USA Inc. PDTA143TT,215

Name: PDTA143TT,215
Brand: Nexperia USA Inc.
SKU: PDTA143TT,215
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: PDTA143TT,215

Manufacturer:: Nexperia USA Inc.

Category:: Single, Pre-Biased Bipolar Transistors

Package:: TO-236-3, SC-59, SOT-23-3

Datasheet:: PDTA143TT,215.pdf

Description:: TRANS PREBIAS PNP 50V TO236AB

Quantity:: RFQ Add To RFQ list

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Inventory:1,042

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Product details

Overview

PDTA143TT from Nexperia is a PNP resistor-equipped transistor with integrated 4.7 kΩ base bias resistor (R1), open R2 configuration, −50 V V_CEO, −100 mA I_O, and SOT23 package - designed for compact DC switching in low-power interface circuits such as microcontroller GPIO drivers and LED control stages.

For engineers reviewing the PDTA143TT datasheet, PDTA143TT pinout, PDTA143TT application, or PDTA143TT equivalent, key selection criteria include verified PNP digital transistor behavior, guaranteed saturation voltage ≤ −150 mV at −5 mA/−0.25 mA drive, thermal resistance of 500 K/W, and compatibility with reflow-only assembly per JEDEC J-STD-020.

Technical Context

This device integrates a single PNP bipolar junction transistor with a monolithic 4.7 kΩ base-emitter pull-up resistor (R1) and no second resistor (R2 = open), enabling direct logic-level drive without external bias components. It operates as a saturated switch with guaranteed h_FE ≥ 200 at −1 mA collector current and −5 V V_CE.

Designed for surface-mount use in space-constrained applications, it supports only reflow soldering (per J-STD-020), exhibits ≤ 3 pF collector capacitance at −10 V V_CB, and maintains ≤ −1 μA ICEO at 25 °C and ≤ −50 μA at 150 °C junction temperature.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	−50 V - maximum safe collector-emitter blocking voltage in open-base configuration
I_O	−100 mA - continuous DC output current capability without derating at T_amb ≤ 25 °C
R1	4.7 kΩ - integrated base bias resistor enabling direct TTL/CMOS input drive
V_CEsat	≤ −150 mV - ensures low conduction loss when switched fully on at −5 mA I_C/−0.25 mA I_B
h_FE	≥ 200 - minimum DC current gain at −1 mA I_C, −5 V V_CE, supporting reliable switching margin
P_tot	250 mW - total power dissipation limit in SOT23 package at T_amb = 25 °C
R_{th j-a}	500 K/W - thermal resistance from junction to ambient, defining temperature rise under load

Pinout & Package

SOT23 (TO-236AB) plastic surface-mounted package, 3-lead, dimensions 3.0 × 1.4 × 1.1 mm (L × W × H), with gull-wing leads and standard JEDEC outline.

Pin/Terminal	Circuit Role	Design Meaning
1	Base	Input node connected internally to R1; accepts logic-level drive without external resistor
2	Emitter	Common reference terminal; tied to system ground or negative rail in high-side switch configurations
3	Collector	Output node; sinks current to load when transistor is biased on via base input

Key Features

Feature	Design Value
Built-in R1 bias resistor	4.7 kΩ ±25% tolerance eliminates need for discrete base resistor, reducing BOM count by one component
Guaranteed saturation performance	V_CEsat ≤ −150 mV at −5 mA I_C/−0.25 mA I_B ensures minimal voltage drop and heat generation in switching mode
Reflow-soldering only	Qualified per J-STD-020, eliminating wave soldering risk and enabling automated SMT line integration
Low leakage at elevated temperature	ICEO ≤ −50 μA at T_j = 150 °C supports stable operation in thermally demanding environments

Applications

Microcontroller GPIO Driver

LED Current Sink

Use Scenario: Driving resistive or low-current inductive loads (e.g., relays, small solenoids) directly from 3.3 V or 5 V MCU outputs.

IC Role / Device Role / Timing Role: Digital switch translating logic-high signal into grounded collector path for load activation.

Use Value: Eliminates external base resistor, reduces PCB area by >1.5 mm², and guarantees turn-on with standard CMOS output drive strength.

Use Scenario: Controlling indicator or status LEDs in portable electronics where board space and component count are critical.

IC Role / Device Role / Timing Role: Constant-current sink providing predictable LED brightness without series resistor calculation.

Use Value: Enables precise current setting via V_CEsat + LED forward voltage, with <1% variation across production lots due to integrated R1 matching.

Level-Shifting Interface

Power Rail Enable Switch

Use Scenario: Translating 1.8 V logic signals to control −5 V or −12 V analog subsystems in mixed-voltage systems.

IC Role / Device Role / Timing Role: Inverting level shifter with defined input threshold set by R1 and transistor V_BE.

Use Value: Provides clean signal inversion and rail isolation without additional voltage translation ICs or discrete resistor networks.

Use Scenario: Enabling/disabling auxiliary power rails (e.g., sensor bias, RF front-end) in battery-powered IoT nodes.

IC Role / Device Role / Timing Role: Low-leakage enable switch placed between supply rail and load, controlled by system controller.

Use Value: Delivers <100 nA standby current (ICBO) and supports fast turn-off (<100 ns) for dynamic power gating.

Equivalent & Alternatives

The following parts are listed as comparable options for similar PNP digital transistor applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
PDTC143TT	NPN complement with identical R1 = 4.7 kΩ, same SOT23 package and pinout (1=base, 2=collector, 3=emitter)	Requires inverted logic control and sourcing (not sinking) current; unsuitable for high-side switching	Select when load must be connected to V_CC and driven low, rather than grounded and driven high
EMH11T2R	PNP digital transistor with R1 = 10 kΩ, higher V_CEO = −60 V, same SOT23 footprint but different pinout (1=emitter, 2=base, 3=collector)	Not pin-compatible; requires PCB layout revision; better suited for higher-voltage industrial sensing	Choose only if design requires >−50 V blocking or lower base drive current (I_B ≈ −0.1 mA)

Compared with PDTC143TT and EMH11T2R, PDTA143TT uniquely provides PNP sinking behavior with verified −150 mV V_CEsat at standard drive levels and full pinout compatibility across the PDTA143T series - making it optimal for cost-sensitive, space-limited 3.3/5 V logic interface designs.

Availability

PDTA143TT is available at Aetrix Electronics and suitable for microcontroller interface circuits, LED driver modules, and power rail enable functions requiring stable component supply and long-term industrial availability.

Supply support for PDTA143TT 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, with manufacturing and R&D centers across Asia, Europe, and the Americas.

The PDTA143T series belongs to Nexperia's resistor-equipped transistor (RET) product line, engineered specifically for reducing component count and simplifying PCB layout in consumer, computing, and industrial digital interface applications.

FAQ

Is PDTA143TT compatible with lead-free reflow processes?

Yes - PDTA143TT is qualified for lead-free reflow soldering per JEDEC J-STD-020, with peak temperature rating up to 260 °C. The device is not rated for wave or hand soldering; reflow is the only recommended assembly method per its thermal design and package construction.

What is the maximum operating junction temperature for PDTA143TT?

The absolute maximum junction temperature (T_j) is +150 °C, as specified in the Limiting Values table. At this temperature, leakage current (ICEO) rises to −50 μA, and power dissipation must be derated linearly above 25 °C ambient using the 500 K/W thermal resistance value.

Does PDTA143TT have a built-in ESD protection diode?

No - the datasheet does not specify any integrated ESD protection structure. The device exhibits standard bipolar junction transistor ESD robustness (HBM Class 1B per JESD22-A114, ~2 kV), and external protection is recommended if exposed to handling or system-level ESD events exceeding this level.

Can PDTA143TT be used in linear amplification mode?

No - PDTA143TT is characterized and optimized exclusively for switching operation. Its h_FE is specified only at −1 mA I_C, and no small-signal parameters (e.g., f_T, C_ob, noise figure) are provided. Linear use is outside its intended function and not supported by characterization data.

PDTA143TT,215 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:: PNP - Pre-Biased

Current - Collector (Ic) (Max):: 100 mA

Voltage - Collector Emitter Breakdown (Max):: 50 V

Resistor - Base (R1):: 4.7 kOhms

Resistor - Emitter Base (R2):: -

DC Current Gain (hFE) (Min) @ Ic, Vce:: 200 @ 1mA, 5V

Vce Saturation (Max) @ Ib, Ic:: 150mV @ 250µA, 5mA

Current - Collector Cutoff (Max):: 100nA (ICBO)

Frequency - Transition:: -

Power - Max:: 250 mW

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: TO-236AB

PDTA143TT,215 FAQ

1.How can I place an order for PDTA143TT,215 through Aetrix?

Please submit a Request for Quotation (RFQ) for PDTA143TT,215 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 PDTA143TT,215 reliable?

The price and inventory of PDTA143TT,215 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDTA143TT,215 is usually 5 days.

3.What payment methods are accepted for PDTA143TT,215?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDTA143TT,215 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for PDTA143TT,215?

PDTA143TT,215 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your PDTA143TT,215 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 PDTA143TT,215?

For technical support, including PDTA143TT,215 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDTA143TT,215 requirements.

6.How does Aetrix verify that PDTA143TT,215 is sourced from the original manufacturer or authorized distributors?

All PDTA143TT,215 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 PDTA143TT,215 meets industry standards.

7.What is the process for return or replacement of PDTA143TT,215?

All PDTA143TT,215 units undergo pre-shipment inspection (PSI). If there is an issue with PDTA143TT,215, 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 PDTA143TT,215 part is unused and in its original packaging.

Return procedure for PDTA143TT,215:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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