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NXP Semiconductors PDTC143XK,115
- Part No.:
- PDTC143XK,115
- Manufacturer:
- NXP Semiconductors
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
PDTC143XK,115.pdf
- Description:
- TRANS PREBIAS NPN 50V 0.1A SMT3
- Quantity:
- Payment:
- Shipping:
Inventory:5,584
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Product details
Overview
PDTC143XK,115 from Nexperia is an NPN 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 use.
For engineers reviewing the PDTC143XK,115 datasheet, PDTC143XK,115 pinout, PDTC143XK,115 application, or PDTC143XK,115 equivalent, this page delivers verified electrical parameters, thermal derating behavior, input/output voltage thresholds, DC current gain, and validated alternatives for load switching and IC input control in space-constrained designs.
Technical Context
This device integrates a monolithic NPN transistor with two precision on-die resistors-R1 connected between base and input, R2 between base and emitter-enabling single-pin digital drive without external bias components. It operates as a saturated switch with guaranteed VCE(sat) ≤ 100 mV at IC = 10 mA / IB = 0.5 mA.
Its VI(on) threshold of 1.5 V (typ) and VI(off) of 0.9 V (typ) support direct interfacing with 1.8 V–5 V logic families. The device meets AEC-Q101 stress test requirements and exhibits fT = 230 MHz (typ), confirming suitability for high-speed digital switching up to ~10 MHz edge rates.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 50 V - Maximum safe collector-emitter voltage under open-base condition; defines voltage headroom for 24 V automotive loads. |
| IO | 100 mA - Continuous output current capability; supports driving LEDs, relays, or logic inputs without external current limiting. |
| R1 | 4.7 kΩ ±27% - Input bias resistor value; sets base current for predictable turn-on with standard logic-level drive. |
| R2/R1 | 2.1 (typ) - Internal resistor ratio; ensures stable saturation and prevents deep cutoff during low-voltage transitions. |
| VCE(sat) | ≤100 mV at IC=10 mA/IB=0.5 mA - Low saturation voltage minimizes power loss and self-heating in switching mode. |
| hFE | ≥50 at VCE=5 V, IC=10 mA - Minimum DC current gain guarantees reliable forced-beta operation in digital switch configuration. |
| fT | 230 MHz (typ) - Transition frequency confirms fast switching response; enables clean edges in PWM and signal routing applications. |
Pinout & Package
SOT23 plastic surface-mounted package (TO-236AB); 3-lead, 1.9 mm × 1.1 mm × 1.3 mm body; standard footprint compatible with reflow soldering only.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | input (base) | Single logic-level input node; connects to microcontroller GPIO or logic gate output; internal R1 pulls up to this pin. |
| 2 | GND (emitter) | Emitter tied to system ground; serves as common return path for load current and internal resistor network. |
| 3 | output (collector) | Switched output node; connects to load (e.g., LED anode, relay coil, or downstream IC input) referenced to positive rail. |
Key Features
| Feature | Design Value |
|---|---|
| Built-in bias resistors | Eliminates need for two external resistors, reducing BOM count and PCB area in digital interface circuits. |
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per JESD22 standards. |
| Low VCE(sat) | Ensures <10 mW conduction loss at 100 mA, critical for thermally constrained modules and battery-powered systems. |
| Logic-compatible VI(on)/VI(off) | Enables direct connection to 1.8 V, 3.3 V, and 5 V CMOS/TTL outputs without level-shifting circuitry. |
| Cost-saving BC847 alternative | Reduces assembly cost by replacing discrete transistor + two resistors with single placement and solder joint. |
Applications
| Automotive LED Lighting Control | Industrial PLC Digital Input Conditioning |
|---|---|
Use Scenario: Driving 12 V/24 V indicator LEDs in dashboard clusters or exterior lighting modules. IC Role / Device Role / Timing Role: NPN switch controlling LED current path from supply rail to ground; operates in DC on/off mode. Use Value: Built-in resistors eliminate layout complexity and ensure consistent turn-on behavior across temperature (-40 °C to +150 °C). | Use Scenario: Converting 24 V field sensor signals to 3.3 V logic levels for microcontroller input pins. IC Role / Device Role / Timing Role: Level-shifting interface transistor with defined VI(on) and VI(off) thresholds for noise-immune signal translation. Use Value: Guaranteed 0.9 V VI(off) prevents false triggering from EMI; 1.5 V VI(on) ensures robust activation even with degraded supply rails. |
| Consumer Appliance Power Sequencing | IoT Sensor Node Load Switching |
Use Scenario: Enabling/disabling auxiliary power rails (e.g., display backlight, motor driver) during boot-up or sleep states. IC Role / Device Role / Timing Role: Low-side load switch controlled by MCU GPIO; handles up to 100 mA steady-state current. Use Value: 100 mA rating and 500 K/W Rth(j-a) allow continuous operation at ambient temperatures up to 85 °C without heatsinking. | Use Scenario: Power gating peripheral sensors (e.g., temperature, humidity) to extend battery life in wireless nodes. IC Role / Device Role / Timing Role: High-efficiency digital switch isolating sensor supply; driven by ultra-low-power MCU wake-up signal. Use Value: Sub-100 mV VCE(sat) limits dropout voltage, preserving usable battery range down to 2.2 V supply. |
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 |
|---|---|---|---|
| PDTC143XT,215 | Same RET architecture, identical R1/R2 values and electrical specs; differs only in tape-and-reel packing code (-215 vs -115). | No functional difference; both rated for same automotive and industrial use cases. | Select PDTC143XT,215 when requiring 3000-unit reel quantity with 4 mm pitch tape. |
| BC847B,215 | Discrete NPN transistor without integrated resistors; requires external RB and RBE; hFE = 200–450 (vs ≥50 for PDTC143XK,115); no AEC-Q101 qualification. | Suitable for non-automotive, cost-sensitive designs where board space and assembly cost are secondary to gain flexibility. | Choose BC847B,215 only if custom biasing is needed or AEC-Q101 compliance is not required. |
Compared with PDTC143XT,215, the PDTC143XK,115 offers identical performance but different packaging logistics; versus BC847B,215, it trades higher hFE flexibility for integrated biasing, reduced component count, and certified automotive reliability-making it optimal for production-grade embedded controls.
Availability
PDTC143XK,115 is available at Aetrix Electronics and suitable for automotive lighting control, industrial PLC input conditioning, and IoT sensor power management requiring stable component supply and long-term lifecycle support.
Supply support for PDTC143XK,115 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 PDTC143XK,115 belongs to Nexperia's resistor-equipped transistor (RET) family, engineered to simplify digital interface design by integrating precision bias networks into miniature SMD packages for high-volume automated assembly.
FAQ
What is the maximum operating temperature for PDTC143XK,115?
The PDTC143XK,115 has a maximum junction temperature (Tj) of 150 °C and an ambient operating range of −65 °C to +150 °C. Its thermal resistance Rth(j-a) is 500 K/W on FR4 PCB, meaning at 25 °C ambient and 100 mA load, junction temperature rises by ~50 °C-well within safe limits. Derating begins above 25 °C per Figure 1 in the datasheet.
Does PDTC143XK,115 support 1.8 V logic input drive?
Yes, PDTC143XK,115 supports 1.8 V logic drive: its VI(on) is specified at 1.5 V (typ) and 2.5 V (max), ensuring reliable turn-on with 1.8 V CMOS outputs. VI(off) is 0.9 V (typ), providing adequate noise margin against sub-1 V glitches. No external level shifter is needed for 1.8 V–5 V logic families.
Is PDTC143XK,115 pin-compatible with other PDTC143X series variants?
Yes, PDTC143XK,115 uses the SOT23 package with standardized 3-pin configuration (pin 1 = input, pin 2 = emitter/GND, pin 3 = collector/output), matching all PDTC143X series members in SOT23 (e.g., PDTC143XT). Pinout is identical across SOT23, SOT323, SOT416, and SOT883 variants per Table 3 in the datasheet.
What is the typical transition frequency (fT) of PDTC143XK,115?
The typical transition frequency fT of PDTC143XK,115 is 230 MHz, measured at VCE = 5 V and IC = 10 mA. This reflects the intrinsic speed of the internal NPN transistor and confirms suitability for digital switching up to multi-MHz clock rates, though practical edge rates are limited by package parasitics and PCB layout.
How does PDTC143XK,115 differ from standard BC847 transistors in circuit design?
PDTC143XK,115 integrates R1 = 4.7 kΩ and R2 = 10 kΩ internally, eliminating two external resistors required by BC847. This reduces PCB area, assembly steps, and potential mismatch errors. Unlike BC847, PDTC143XK,115 is AEC-Q101 qualified and optimized for saturated switching-not linear amplification-with guaranteed VCE(sat) and VI thresholds.
PDTC143XK,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Transistor Type:
- NPN - 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):
- 10 kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 50 @ 10mA, 5V
- Vce Saturation (Max) @ Ib, Ic:
- 100mV @ 500µA, 10mA
- Current - Collector Cutoff (Max):
- 1µA
- Frequency - Transition:
- -
- Power - Max:
- 250 mW
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMT3; MPAK
PDTC143XK,115 FAQ
1.How can I place an order for PDTC143XK,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for PDTC143XK,115 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 PDTC143XK,115 reliable?
The price and inventory of PDTC143XK,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDTC143XK,115 is usually 5 days.
3.What payment methods are accepted for PDTC143XK,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDTC143XK,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDTC143XK,115?
PDTC143XK,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDTC143XK,115 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 PDTC143XK,115?
For technical support, including PDTC143XK,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDTC143XK,115 requirements.
6.How does Aetrix verify that PDTC143XK,115 is sourced from the original manufacturer or authorized distributors?
All PDTC143XK,115 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 PDTC143XK,115 meets industry standards.
7.What is the process for return or replacement of PDTC143XK,115?
All PDTC143XK,115 units undergo pre-shipment inspection (PSI). If there is an issue with PDTC143XK,115, 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 PDTC143XK,115 part is unused and in its original packaging.
Return procedure for PDTC143XK,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PDTC143XK,115 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
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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
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MMUN2211LT1G
onsemi
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Nexperia USA Inc.
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PDTC124ET,215
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