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Nexperia USA Inc. PDTC123JT,215
- Part No.:
- PDTC123JT,215
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
PDTC123JT,215.pdf
- Description:
- TRANS PREBIAS NPN 50V TO236AB
- Quantity:
- Payment:
- Shipping:
Inventory:78,087
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Product details
Overview
PDTC123JT from Nexperia is an NPN resistor-equipped transistor (RET) in SOT23 package, designed for digital switching with built-in bias resistors R1 = 2.2 kΩ and R2 = 47 kΩ, 50 V VCEO, 100 mA IO, and 230 MHz fT; used to drive IC inputs and switch small loads in industrial control modules.
For engineers reviewing the PDTC123JT datasheet, PDTC123JT pinout, PDTC123JT application, or PDTC123JT equivalent, this page delivers verified pin functions, real-world switching use cases, thermal derating behavior, and validated alternatives for BC847-based digital interface designs.
Technical Context
This RET integrates a monolithic NPN transistor with two precision on-die resistors-R1 connected between base and input, R2 from base to emitter-enabling single-resistor external drive and eliminating discrete bias networks. It operates as a saturated switch with guaranteed VCE(sat) ≤ 100 mV at IC = 5 mA / IB = 0.25 mA.
The device exhibits stable DC current gain (hFE ≥ 100 at VCE = 5 V, IC = 10 mA, Tamb = 25 °C), low input threshold (VI(on) = 0.75–1.1 V), and robust off-state blocking (VI(off) = 0.5–0.6 V), making it suitable for 3.3 V/5 V logic-level interfacing without level-shifting.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 50 V - Maximum collector-emitter voltage before breakdown; supports 24 V industrial bus interfacing with margin. |
| IO | 100 mA - Continuous output current capability; sufficient for driving LED indicators, small relays, or logic inputs. |
| R1 | 2.2 kΩ ±30% - Input bias resistor; sets base current when driven by standard CMOS/TTL outputs. |
| R2/R1 ratio | 21 - Ensures reliable saturation under process/temperature variation; reduces risk of partial turn-on. |
| fT | 230 MHz - Transition frequency of internal transistor; enables fast edge response in pulse-width modulated signals. |
| Ptot | 250 mW at Tamb ≤ 25 °C - Total power dissipation limit; requires derating above 25 °C per 500 K/W junction-to-ambient thermal resistance. |
Pinout & Package
SOT23 (TO-236AB) plastic surface-mount package: 3-terminal, 1.9 mm pitch, 2.9 mm × 1.3 mm × 1.0 mm body, FR4 PCB mountable with standard reflow footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Input (base) | Driven directly by microcontroller GPIO or logic output; connects internally to R1 and R2 network. |
| 2 | Ground (emitter) | Common reference node for input and output paths; tied to system GND in most switching configurations. |
| 3 | Output (collector) | Switches load between VCC and this terminal; supports up to 100 mA sink current with <100 mV saturation drop. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated bias network | Eliminates need for two external resistors, reducing BOM count and PCB area in digital interface circuits. |
| Guaranteed saturation | VCE(sat) ≤ 100 mV at IC = 5 mA ensures minimal power loss and compatible logic-low detection by downstream receivers. |
| Wide temperature operation | Functional across −65 °C to +150 °C ambient; supports industrial environments without derating penalties below 125 °C. |
| Low input threshold | VI(on) ≤ 1.1 V at IC = 5 mA allows direct drive from 1.8 V, 3.3 V, and 5 V logic families without pull-up or level shifters. |
Applications
| Industrial Digital I/O Module | Microcontroller GPIO Expander |
|---|---|
Use Scenario: Isolating and buffering PLC digital outputs to drive 24 V sensors or actuators. IC Role / Device Role / Timing Role: NPN switch controlling current path from 24 V supply to load, with logic-level enable from controller. Use Value: Reduces component count vs. discrete BJT + two resistors; maintains <100 mV VCE(sat) even at full 100 mA load. |
Use Scenario: Extending limited GPIO count on Cortex-M0+ MCU to manage multiple status LEDs and push-button inputs. IC Role / Device Role / Timing Role: Level-translating and current-boosting interface between 3.3 V MCU pins and 5 V indicator loads. Use Value: Enables direct 3.3 V drive with no external components; VI(on) ≤ 1.1 V ensures reliable turn-on at low VDD. |
| Cost-Sensitive Consumer Remote Control | Smart Home Sensor Node |
Use Scenario: Replacing BC847 in IR LED driver stage of battery-powered remote controls. IC Role / Device Role / Timing Role: Constant-current switch for pulsed IR LED emission at 38 kHz carrier frequency. Use Value: Matches BC847 performance while cutting assembly cost via reduced pick-and-place steps and solder joints. |
Use Scenario: Enabling wake-on-event functionality by switching power to motion or environmental sensors only when needed. IC Role / Device Role / Timing Role: Low-leakage (ICEO ≤ 5 µA at 150 °C) load switch controlled by ultra-low-power MCU sleep mode pin. Use Value: Minimizes standby current drain; R2/R1 = 21 ensures deep cutoff during sleep, preventing false wake events. |
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 |
|---|---|---|---|
| PDTC114YT,215 | R1 = 10 kΩ, R2 = 47 kΩ → higher input impedance, lower base current draw | Better suited for high-impedance MCU outputs or battery-constrained systems where IB must be minimized | Select when driving from weak-sourcing GPIOs or optimizing for <1 µA standby leakage. |
| BC847B,215 | Discrete NPN BJT with no integrated resistors; requires external RB and RBE | Offers higher hFE (200–450) and wider VCEO margin (45 V), but increases design complexity and layout area | Choose when precise bias tuning or higher gain stability across temperature is required, and board space permits two extra resistors. |
Compared with PDTC114YT and BC847B, PDTC123JT provides optimal balance of low-input-threshold switching, compact integration, and industrial-grade thermal robustness-making it ideal for cost-sensitive, high-volume digital interface designs where layout simplicity and consistent saturation are prioritized over fine-tuned gain or ultra-low bias current.
Availability
PDTC123JT is available at Aetrix Electronics and suitable for industrial digital I/O modules, microcontroller GPIO expansion circuits, and smart home sensor nodes requiring stable component supply and long-term production continuity.
Supply support for PDTC123JT 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 delivering high-performance, reliable discrete, logic, and MOSFET devices optimized for efficiency-critical applications in automotive, industrial, and consumer markets.
PDTC123JT belongs to Nexperia's Resistor-Equipped Transistor (RET) product line, engineered specifically to simplify digital signal interfacing and reduce bill-of-materials complexity in space-constrained, high-reliability embedded systems.
FAQ
Can PDTC123JT replace BC847 in all digital switching applications?
No-it replaces BC847 only in fixed-gain, logic-level-driven switching roles where its integrated R1/R2 network matches the required base bias. Applications needing adjustable gain, analog amplification, or linear operation require discrete transistors with external bias control.
What is the maximum safe operating current at 85 °C ambient?
At Tamb = 85 °C, power derating reduces Ptot to ~150 mW. With VCE(sat) ≤ 100 mV, max continuous IO ≈ 1.5 A is physically impossible; practical limit remains 100 mA due to bondwire and package constraints-not thermal alone-as confirmed in Nexperia's limiting values table.
Does PDTC123JT support 1.8 V logic drive?
Yes-its VI(on) ranges from 0.75 V to 1.1 V at IC = 5 mA, ensuring reliable turn-on with 1.8 V CMOS outputs. However, ensure source can deliver ≥90 µA (I1 test condition) to guarantee full saturation under worst-case R1 tolerance.
Is PDTC123JT qualified for automotive use?
No-this part is explicitly marked "non-automotive qualified" in the revision history and legal disclaimers. For automotive applications, select the -Q qualified variant (e.g., PDTC123JTX), which undergoes AEC-Q101 stress testing and PPAP documentation.
PDTC123JT,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:
- NPN - Pre-Biased
- Current - Collector (Ic) (Max):
- 100 mA
- Voltage - Collector Emitter Breakdown (Max):
- 50 V
- Resistor - Base (R1):
- 2.2 kOhms
- Resistor - Emitter Base (R2):
- 47 kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 100 @ 10mA, 5V
- Vce Saturation (Max) @ Ib, Ic:
- 100mV @ 250µA, 5mA
- Current - Collector Cutoff (Max):
- 1µA
- Frequency - Transition:
- -
- Power - Max:
- 250 mW
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-236AB
PDTC123JT,215 FAQ
1.How can I place an order for PDTC123JT,215 through Aetrix?
Please submit a Request for Quotation (RFQ) for PDTC123JT,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 PDTC123JT,215 reliable?
The price and inventory of PDTC123JT,215 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDTC123JT,215 is usually 5 days.
3.What payment methods are accepted for PDTC123JT,215?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDTC123JT,215 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDTC123JT,215?
PDTC123JT,215 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDTC123JT,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 PDTC123JT,215?
For technical support, including PDTC123JT,215 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDTC123JT,215 requirements.
6.How does Aetrix verify that PDTC123JT,215 is sourced from the original manufacturer or authorized distributors?
All PDTC123JT,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 PDTC123JT,215 meets industry standards.
7.What is the process for return or replacement of PDTC123JT,215?
All PDTC123JT,215 units undergo pre-shipment inspection (PSI). If there is an issue with PDTC123JT,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 PDTC123JT,215 part is unused and in its original packaging.
Return procedure for PDTC123JT,215:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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