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NXP Semiconductors PDTA143XT,215
- Part No.:
- PDTA143XT,215
- Manufacturer:
- NXP Semiconductors
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- -
- Datasheet:
-
PDTA143XT,215.pdf
- Description:
- TRANS PREBIAS
- Quantity:
- Payment:
- Shipping:
Inventory:492,000
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Product details
Overview
PDTA143XT from Nexperia is a PNP resistor-equipped transistor (RET) in SOT23 package, designed for digital switching applications with built-in bias resistors R1 = 4.7 kΩ and R2 = 10 kΩ, −50 V VCEO, −100 mA IO, and AEC-Q101 qualification for automotive control circuits.
For engineers reviewing the PDTA143XT datasheet, PDTA143XT pinout, PDTA143XT application, or PDTA143XT equivalent, key selection factors include its integrated base resistors, −100 mA output capability, SOT23 footprint compatibility, and verified performance in IC input control and load switching under −40 °C to +150 °C ambient conditions.
Technical Context
This PNP RET integrates two precision thin-film resistors (R1 = 4.7 kΩ, R2 = 10 kΩ) directly into the die assembly, eliminating external bias components and reducing PCB layout complexity. Its internal topology ensures stable DC current gain (hFE ≥ 50 at IC = −10 mA) and low saturation voltage (VCE(sat) ≤ −100 mV).
The device operates as a single-stage digital switch with defined off-state input voltage (VI(off) = −0.9 to −0.3 V) and on-state input voltage (VI(on) = −2.5 to −1.5 V), enabling direct interface with 3.3 V and 5 V logic families without level-shifting circuitry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | −50 V - Maximum collector-emitter blocking voltage in open-base configuration, suitable for 24 V automotive supply rail switching. |
| IO | −100 mA - Continuous output current rating, supports driving small relays, LEDs, or logic inputs without external current limiting. |
| R1 | 4.7 kΩ ±28% - Input bias resistor value, sets base drive current for predictable turn-on behavior with standard microcontroller GPIOs. |
| R2/R1 ratio | 2.1 - Fixed feedback-to-input resistor ratio, ensures stable saturation and prevents thermal runaway during sustained conduction. |
| VCE(sat) | ≤ −100 mV at IC = −10 mA / IB = −0.5 mA - Low saturation voltage minimizes power loss and heat generation in high-duty-cycle switching. |
| hFE | ≥ 50 at VCE = −5 V, IC = −10 mA - Guaranteed DC current gain enables reliable logic-level interfacing without additional amplification stages. |
| fT | 180 MHz - Transition frequency confirms suitability for fast digital switching up to ~10–20 MHz edge rates in pulse-width modulation or data line buffering. |
Pinout & Package
SOT23 (TO-236AB) plastic surface-mounted package with 3 leads; compact 2.8 mm × 1.4 mm × 1.1 mm body height; reflow soldering compatible per JEDEC J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Input (base) | Connected internally to R1 and R2 network; accepts logic-level voltage to enable controlled PNP conduction. |
| 2 | GND (emitter) | Emitter terminal tied to system ground reference; serves as common return path for switched load current. |
| 3 | Output (collector) | Switched high-side output node; sinks current from load connected between VCC and collector when active. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated R1/R2 bias network | Eliminates two external resistors, reducing BOM count and placement cost while guaranteeing matched resistor tracking across temperature. |
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, humidity testing, and mechanical shock per AEC standard. |
| −100 mA continuous output | Supports direct driving of small solenoids, indicator LEDs, or optocoupler inputs without heatsinking or derating below 100 °C ambient. |
| SOT23 footprint compatibility | Enables drop-in replacement for legacy BC857-family transistors using standard pick-and-place equipment and reflow profiles. |
| VI(off) and VI(on) thresholds | Defined input voltage windows (−0.9 to −0.3 V off, −2.5 to −1.5 V on) ensure noise-immune operation in electrically noisy automotive environments. |
Applications
| Automotive Door Module Control | Industrial PLC Input Conditioning |
|---|---|
Use Scenario: Switching 12 V window motor enable signals and mirror fold/unfold commands in door control units. IC Role / Device Role / Timing Role: PNP RET acts as a high-side driver for discrete loads, translating MCU GPIO outputs into robust 12 V/100 mA switching capability. Use Value: Built-in resistors eliminate need for external bias networks, reducing PCB area by >1.5 mm² per channel and improving ESD immunity over discrete solutions. |
Use Scenario: Level-shifting and isolating 24 V field sensor inputs before feeding into 3.3 V FPGA or microcontroller I/O banks. IC Role / Device Role / Timing Role: Digital switch provides galvanically isolated signal conditioning with defined VI(on)/VI(off) thresholds to reject line noise and contact bounce. Use Value: −100 mA output rating allows direct interface with optocoupler LEDs without series resistors, cutting component count by one per channel. |
| Consumer Appliance Power Sequencing | Medical Diagnostic Equipment Status Indication |
Use Scenario: Enabling sequential power-up of subsystems (e.g., display backlight, motor drivers, communication modules) in smart washing machines. IC Role / Device Role / Timing Role: RET functions as a digitally controlled power gate, activated by main controller to assert enable signals to downstream regulators. Use Value: Low VCE(sat) (≤ −100 mV) limits power dissipation to <1 mW at 10 mA, enabling use in thermally constrained sealed enclosures. |
Use Scenario: Driving dual-color status LEDs (red/green) on patient monitor front panels to indicate operational mode and alarm states. IC Role / Device Role / Timing Role: High-side switch controls LED anode connection to 3.3 V rail, allowing precise PWM dimming via MCU-controlled base voltage. Use Value: Matched R1/R2 ratio ensures consistent brightness across channels and eliminates batch-dependent resistor tolerance drift affecting LED intensity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PNP digital switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PDTC143XT | NPN complement with identical R1/R2 values and SOT23 package; requires inverted logic drive and low-side load configuration. | Used where load must be grounded and switched on the high side is not feasible due to system grounding constraints. | Select when circuit topology mandates NPN-based sinking rather than PNP sourcing. |
| BC857B,215 | Discrete PNP transistor without integrated resistors; requires two external bias resistors and occupies larger PCB area. | Suitable for designs requiring adjustable base current or variable gain, but increases component count and layout complexity. | Choose only if programmable base drive or non-standard R1/R2 ratios are required. |
Compared with PDTC143XT, PDTA143XT provides sourcing capability ideal for high-side switching, whereas BC857B,215 demands external biasing and lacks AEC-Q101 validation-making PDTA143XT the preferred choice for space-constrained, automotive-qualified digital load control.
Availability
PDTA143XT is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC I/O modules, and consumer appliance power sequencing requiring stable component supply and AEC-Q101 compliance.
Supply support for PDTA143XT 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 semiconductor expert focused on high-volume, high-reliability discrete and logic devices, with leadership in automotive-qualified components and advanced packaging technologies.
The PDTA143X series belongs to Nexperia's Resistor-Equipped Transistor product line, engineered specifically for digital switching in space- and cost-sensitive automotive and industrial control systems.
FAQ
What is the maximum operating junction temperature for PDTA143XT?
The absolute maximum junction temperature (Tj) is 150 °C, validated per IEC 60134 limiting values. Thermal resistance Rth(j-a) is 500 K/W on FR4 PCB with standard footprint, meaning at 25 °C ambient and 100 mW dissipation, junction temperature rises to 75 °C-well within safe margin for continuous operation.
Can PDTA143XT replace BC857B in existing designs?
Yes, PDTA143XT is a pin-compatible, functionally enhanced drop-in alternative to BC857B in SOT23 packages. It integrates R1 and R2 bias resistors (4.7 kΩ and 10 kΩ), eliminating two external components while maintaining identical pinout and electrical envelope-reducing BOM count and improving reliability without layout changes.
Is PDTA143XT suitable for 3.3 V logic interfacing?
Yes. Its VI(on) range (−2.5 V to −1.5 V) and VI(off) range (−0.9 V to −0.3 V) align precisely with 3.3 V CMOS logic thresholds. When driven by a 3.3 V MCU GPIO pulled low, it achieves full saturation with ≤ −100 mV VCE(sat), ensuring minimal voltage drop and power loss.
What is the marking code for PDTA143XT on the device body?
The top-side marking is *31, where "*" is a placeholder for the manufacturing site code and "31" identifies the PDTA143XT variant. This matches Nexperia's official marking specification in Table 5 of the datasheet and is visible under 20× magnification on the SOT23 package.
PDTA143XT,215 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:
- -
PDTA143XT,215 FAQ
1.How can I place an order for PDTA143XT,215 through Aetrix?
Please submit a Request for Quotation (RFQ) for PDTA143XT,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 PDTA143XT,215 reliable?
The price and inventory of PDTA143XT,215 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDTA143XT,215 is usually 5 days.
3.What payment methods are accepted for PDTA143XT,215?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDTA143XT,215 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDTA143XT,215?
PDTA143XT,215 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDTA143XT,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 PDTA143XT,215?
For technical support, including PDTA143XT,215 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDTA143XT,215 requirements.
6.How does Aetrix verify that PDTA143XT,215 is sourced from the original manufacturer or authorized distributors?
All PDTA143XT,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 PDTA143XT,215 meets industry standards.
7.What is the process for return or replacement of PDTA143XT,215?
All PDTA143XT,215 units undergo pre-shipment inspection (PSI). If there is an issue with PDTA143XT,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 PDTA143XT,215 part is unused and in its original packaging.
Return procedure for PDTA143XT,215:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PDTA143XT,215 Tags
-
MUN5211T1G
onsemi
-
DTC043ZEBTL
Rohm Semiconductor
-
DTC114EKAT146
Rohm Semiconductor
-
DDTD113ZC-7-F
Diodes Incorporated
-
DRDNB16W-7
Diodes Incorporated
-
PDTC114ET,215
Nexperia USA Inc.
-
PDTC143ZT,215
Nexperia USA Inc.
-
PDTC143ET,215
Nexperia USA Inc.
-
PDTC143XT,215
Nexperia USA Inc.
-
MMUN2211LT1G
onsemi
-
PDTC144ET,215
Nexperia USA Inc.
-
PDTC124ET,215
Nexperia USA Inc.
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