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

Nexperia USA Inc. PDTA114TT,215

Name: PDTA114TT,215
Brand: Nexperia USA Inc.
SKU: PDTA114TT,215
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: PDTA114TT,215

Manufacturer:: Nexperia USA Inc.

Category:: Single, Pre-Biased Bipolar Transistors

Package:: -

Datasheet:: PDTA114TT,215.pdf

Description:: NEXPERIA PDTA114 - SMALL SIGNAL

Quantity:: RFQ Add To RFQ list

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Inventory:192,000

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Product details

Overview

PDTA114TT from Nexperia is a PNP resistor-equipped transistor (RET) in SOT23 package, designed for digital switching applications with integrated 10 kΩ base bias resistor (R1), −50 V V_CEO, −100 mA output current capability, and −150 mV V_CEsat at I_C = −10 mA/I_B = −0.5 mA - used in microcontroller GPIO interface buffering and low-power logic-level translation.

For engineers reviewing the PDTA114TT datasheet, PDTA114TT pinout, PDTA114TT application, or PDTA114TT equivalent, this part serves as a space- and cost-optimized replacement for discrete PNP + bias resistor networks in digital control circuits, particularly where board area, BOM count, and assembly yield are critical.

Technical Context

This PNP RET integrates a single 10 kΩ input bias resistor (R1) with open R2 configuration, enabling direct connection to CMOS/TTL logic outputs without external pull-up or base resistors. Its internal topology eliminates need for external bias network while maintaining predictable DC current gain (h_FE ≥ 200 at I_C = −1 mA).

Designed for operation up to 150 °C junction temperature, it supports stable switching in industrial ambient conditions and exhibits low collector capacitance (3 pF), minimizing signal delay in high-speed digital interfaces below 10 MHz.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	−50 V - supports reliable switching in 24 V industrial control rails with margin
I_O	−100 mA - drives LED indicators, small relays, or logic inputs directly
R1	10 kΩ (7–13 kΩ range) - sets defined base current for consistent turn-on without external resistor
V_CEsat	−150 mV @ I_C = −10 mA - minimizes power loss and voltage drop in active-low switch paths
h_FE	≥200 @ V_CE = −5 V, I_C = −1 mA - ensures robust saturation under varying supply and temperature
C_c	3 pF - enables clean edge response in <10 MHz digital enable/disable signals
P_tot	250 mW @ T_amb ≤ 25 °C - compatible with standard FR4 PCB layout without heatsinking

Pinout & Package

SOT23 (TO-236AB) plastic surface-mounted package, 3-lead, 1.9 mm × 1.1 mm × 1.0 mm body, standard footprint for reflow soldering.

Pin/Terminal	Circuit Role	Design Meaning
1	Input (base)	Connected internally to R1; accepts logic-high (low-voltage) signal to activate PNP switch
2	GND (emitter)	Common reference node; tied to system ground or negative rail in high-side switching configurations
3	Output (collector)	Switched output node; sinks current when active, suitable for driving loads referenced to V_CC

Key Features

Feature	Design Value
Integrated R1 bias resistor	10 kΩ ±30 % eliminates need for external base resistor, reducing BOM count by one component
PNP RET architecture	Single-transistor + resistor integration simplifies schematic capture and reduces PCB routing complexity
Low V_CEsat	−150 mV ensures minimal voltage drop across switch, preserving headroom for downstream logic or LEDs
SOT23 package	Standardized 3-lead footprint enables compatibility with existing pick-and-place equipment and reflow profiles
−100 mA output rating	Supports direct drive of common indicator LEDs, small solenoids, and logic gate inputs without buffer stages

Applications

Microcontroller GPIO Interface

LED Indicator Driver

Use Scenario: Driving active-low enable inputs on peripherals (e.g., sensors, displays) from 3.3 V or 5 V MCU GPIO pins.

IC Role / Device Role / Timing Role: Level-shifting and current-sinking switch that inverts logic state and provides load isolation.

Use Value: Eliminates need for external base resistor and discrete transistor, saving 2.2 mm² PCB area per channel.

Use Scenario: Controlling status LEDs in battery-powered handheld devices with tight thermal constraints.

IC Role / Device Role / Timing Role: Constant-current sink switch optimized for low duty-cycle visual feedback.

Use Value: 250 mW power dissipation limit and −150 mV V_CEsat minimize self-heating and extend battery life.

Industrial Digital Input Conditioning

Logic-Level Translation (5 V → 3.3 V)

Use Scenario: Converting 24 V PLC digital input signals to 3.3 V/5 V logic levels via optocoupler-compatible interface.

IC Role / Device Role / Timing Role: High-side switch providing galvanically isolated input stage pre-conditioning.

Use Value: −50 V V_CEO withstands transient surges on industrial field wiring without clamping diodes.

Use Scenario: Interfacing legacy 5 V logic outputs to modern 3.3 V microcontrollers requiring inverted enable signals.

IC Role / Device Role / Timing Role: Active-low level translator with predictable propagation delay (<50 ns typical).

Use Value: Integrated R1 ensures consistent switching threshold across temperature, avoiding marginal logic transitions.

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
PDTC114TT	NPN complement; same SOT23 package, identical R1 value, but opposite polarity switching	Requires inverted logic drive and load referenced to ground instead of V_CC	Select when circuit uses NPN-friendly topology or requires sourcing (not sinking) behavior
BC857B,215	Discrete PNP transistor only; no built-in bias resistor - requires external 10 kΩ base resistor	Higher BOM count and layout area; less consistent bias current due to resistor tolerance and layout parasitics	Choose only if design requires adjustable base current or higher h_FE variation tolerance

Compared with PDTC114TT, PDTA114TT provides native active-low sinking functionality ideal for MCU enable lines; versus BC857B,215, it reduces layout risk and assembly steps by integrating the critical bias resistor with guaranteed matching.

Availability

PDTA114TT is available at Aetrix Electronics and suitable for industrial control panels, portable medical monitors, and automotive body electronics requiring stable component supply and long-term manufacturability.

Supply support for PDTA114TT 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 PDTA114TT belongs to Nexperia's PNP Resistor-Equipped Transistor (RET) family, engineered specifically to replace dual-component (transistor + resistor) solutions in digital switching and interface applications.

FAQ

What is the function of Pin 2 on PDTA114TT?

Pin 2 is the emitter terminal, internally connected to GND reference. In standard PNP RET operation, it serves as the common return path for base and collector currents. It must be tied to the system ground or lowest potential node in the switched circuit to enable proper biasing and current flow through the integrated R1 resistor.

Can PDTA114TT be used in linear amplifier mode?

No - PDTA114TT is characterized and qualified exclusively for switching operation. Its integrated R1 resistor and specified h_FE min/max range (200 only at I_C = −1 mA) reflect digital on/off use. Linear amplification would cause unpredictable gain, thermal instability, and violation of limiting values such as P_tot and R_th(j-a).

Is the R2 resistor present or functional in PDTA114TT?

R2 is open (not connected) in PDTA114TT, as confirmed in the product overview and quick reference data. Only R1 (10 kΩ) is implemented. This configuration supports standard active-low switching where base current flows solely through R1 from the input signal to the emitter (Pin 2), eliminating need for a second bias path.

What is the maximum allowable continuous collector current at 85 °C ambient?

At T_amb = 85 °C, derating applies: P_tot drops from 250 mW (at 25 °C) to approximately 150 mW. Using V_CEsat ≈ −150 mV, the practical continuous I_C limit is −100 mA × (150 mW / 250 mW) = −60 mA. Exceeding this risks thermal runaway and permanent junction damage.

PDTA114TT,215 Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

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:: -

PDTA114TT,215 FAQ

1.How can I place an order for PDTA114TT,215 through Aetrix?

Please submit a Request for Quotation (RFQ) for PDTA114TT,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 PDTA114TT,215 reliable?

The price and inventory of PDTA114TT,215 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDTA114TT,215 is usually 5 days.

3.What payment methods are accepted for PDTA114TT,215?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDTA114TT,215 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for PDTA114TT,215?

PDTA114TT,215 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your PDTA114TT,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 PDTA114TT,215?

For technical support, including PDTA114TT,215 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDTA114TT,215 requirements.

6.How does Aetrix verify that PDTA114TT,215 is sourced from the original manufacturer or authorized distributors?

All PDTA114TT,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 PDTA114TT,215 meets industry standards.

7.What is the process for return or replacement of PDTA114TT,215?

All PDTA114TT,215 units undergo pre-shipment inspection (PSI). If there is an issue with PDTA114TT,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 PDTA114TT,215 part is unused and in its original packaging.

Return procedure for PDTA114TT,215:

1.Submit a request within 90 days.

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

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