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Nexperia USA Inc. PDTC123JT-QR
- Part No.:
- PDTC123JT-QR
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
PDTC123JT-QR.pdf
- Description:
- TRANS PREBIAS NPN 50V TO236AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,489
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Product details
Overview
PDTC123JT-QR from Nexperia is an AEC-Q101-qualified NPN resistor-equipped transistor (RET) in SOT23 package, featuring integrated 2.2 kΩ input bias resistor (R1) and 47 kΩ feedback resistor (R2), rated for 50 V VCEO and 100 mA output current, used as a digital switch for IC input control and load switching in automotive ECUs.
For engineers reviewing the PDTC123JT-QR datasheet, PDTC123JT-QR pinout, PDTC123JT-QR application, or PDTC123JT-QR equivalent, this page delivers verified electrical parameters, validated SOT23 terminal mapping, automotive-grade reliability context, and direct functional alternatives to BC847-Q series transistors.
Technical Context
This RET integrates a monolithic NPN transistor with two precision laser-trimmed on-die resistors-R1 connected between base and input, R2 between base and emitter-enabling single-pin logic-level drive without external bias network. It operates as a saturated switch with guaranteed VCE(sat) ≤ 100 mV at IC = 5 mA / IB = 0.25 mA.
The device exhibits hFE ≥ 100 at VCE = 5 V and IC = 10 mA, fT = 230 MHz (intrinsic transistor), and thermal resistance Rth(j-a) = 500 K/W on FR4 PCB-supporting reliable operation up to Tj = 150 °C in under-hood environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 50 V - Maximum collector-emitter voltage before breakdown; enables use in 24 V automotive supply rails with margin. |
| IO | 100 mA - Continuous DC output current capability; sufficient for driving LED indicators, small relays, or logic inputs. |
| R1 | 2.2 kΩ - Input bias resistor value; sets base current for logic-compatible turn-on with 3.3 V or 5 V microcontroller outputs. |
| R2/R1 ratio | 21 - Feedback-to-input resistor ratio; ensures stable saturation and prevents unintended conduction during noise transients. |
| VCE(sat) | ≤ 100 mV at IC = 5 mA - Low saturation voltage minimizes power loss and self-heating in high-duty-cycle switching. |
| hFE | ≥ 100 at IC = 10 mA - Guaranteed DC current gain ensures predictable switching behavior across temperature (-40 °C to 125 °C). |
| fT | 230 MHz - Transition frequency of internal transistor; supports fast edge response in digital signal paths up to ~10 MHz. |
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 height, optimized for automated placement and reflow soldering per IPC-7351B footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Input (base connection via R1) | Logic-level input node; accepts 3.3 V/5 V CMOS/TTL signals directly-no external resistor required. |
| 2 | Ground (emitter) | Emitter tied to system ground; provides return path for load current and defines reference for R1/R2 network. |
| 3 | Output (collector) | Switched high-side output node; connects to load (e.g., LED anode, relay coil) referenced to VCC. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated R1 + R2 bias network | Eliminates need for two external resistors-reduces BOM count, PCB area, and assembly cost by ~0.02 USD/unit at volume. |
| AEC-Q101 qualification | Validated for automotive applications including engine control, body electronics, and ADAS sensors per stress test requirements. |
| Guaranteed VCE(sat) ≤ 100 mV | Ensures <1 mW conduction loss at 10 mA load-critical for thermally constrained modules like junction boxes and door controllers. |
| Thermal resistance Rth(j-a) = 500 K/W | Enables 100 mA continuous operation at ambient up to 85 °C on standard FR4 without heatsinking. |
| Marking code %25 | Laser-marked top-side identifier (% = site code); supports traceability and counterfeit mitigation in Tier-1 supply chains. |
Applications
| Automotive Body Control Module | Industrial PLC Digital Input Stage |
|---|---|
Use Scenario: Switching 12 V indicator LEDs and small solenoids in door latch and mirror control units. IC Role / Device Role / Timing Role: Digital output driver interfacing MCU GPIO to higher-voltage loads. Use Value: Eliminates discrete resistor network while maintaining AEC-Q101 compliance and <100 ns propagation delay. |
Use Scenario: Level-shifting and isolating 24 V field sensor signals into 3.3 V FPGA I/O banks. IC Role / Device Role / Timing Role: Input conditioning switch providing galvanic separation and ESD robustness. Use Value: Reduces component count per channel by two resistors and improves board-level EMI immunity via controlled impedance path. |
| Automotive HVAC Fan Speed Control | Consumer Appliance Motor Driver Interface |
Use Scenario: PWM-driven fan enable/disable in climate control systems operating at 10–20 kHz. IC Role / Device Role / Timing Role: High-side switch controlling fan motor ground return path. Use Value: Maintains <100 mV VCE(sat) across full PWM duty cycle-minimizing heat generation in sealed enclosures. |
Use Scenario: Driving small DC brush motors in smart home appliances using 5 V MCU outputs. IC Role / Device Role / Timing Role: Logic-level interface between microcontroller and motor H-bridge enable pins. Use Value: Provides consistent turn-on threshold (VI(on) = 0.75 V typ.) across temperature, reducing firmware calibration overhead. |
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 |
|---|---|---|---|
| BC847B-Q | Discrete NPN BJT without integrated resistors; requires external R1/R2 network (typically 10 kΩ / 47 kΩ). | Higher BOM count and layout complexity; lacks AEC-Q101 qualification out-of-box. | Select when design requires adjustable bias or higher hFE (200–450) at low IC. |
| PDTA123JT | PNP complement with identical R1/R2 values (2.2 kΩ / 47 kΩ), same SOT23 package, and matching AEC-Q101 rating. | Used for high-side switching where load connects to ground; not interchangeable in circuit topology. | Select for complementary high-side drive in push-pull or dual-rail configurations requiring matched RET characteristics. |
Compared with BC847B-Q, PDTC123JT-QR reduces bill-of-materials and layout area while guaranteeing automotive qualification; compared with PDTA123JT, it serves distinct low-side switching roles but shares identical resistor ratios and thermal performance-enabling unified sourcing for dual-polarity designs.
Availability
PDTC123JT-QR is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLC input stages, HVAC fan drivers, and consumer appliance motor interfaces requiring stable component supply, AEC-Q101 traceability, and SOT23 footprint compatibility.
Supply support for PDTC123JT-QR 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 essential efficiency technologies, delivering high-performance, reliable discrete, logic, and MOSFET solutions for automotive, industrial, and mobile markets.
PDTC123JT-QR belongs to Nexperia's Automotive Qualified Resistor-Equipped Transistor (RET) product line, engineered to replace discrete BJT + resistor combinations in cost-sensitive, space-constrained digital switching applications across vehicle subsystems.
FAQ
What is the maximum allowable ambient temperature for continuous 100 mA operation?
At 100 mA output current, PDTC123JT-QR dissipates up to 10 mW (IC × VCE(sat)). With Rth(j-a) = 500 K/W, junction temperature rise is 5 °C-well within the 150 °C Tj limit. Therefore, continuous 100 mA operation is supported up to +125 °C ambient on standard FR4 PCB, per Figure 1 derating curve.
Can PDTC123JT-QR be used with 1.8 V logic inputs?
No. VI(on) is specified at 0.75 V (typ.) and 1.1 V (max) at IC = 5 mA, but VI(off) is only 0.6 V (typ.). A 1.8 V logic high exceeds VI(on) margin but risks partial turn-on due to insufficient overdrive; minimum recommended input is 2.5 V for reliable saturation across temperature and process variation.
Is the R1 resistor connected to base or emitter internally?
R1 is connected between Pin 1 (input) and the transistor base; R2 is connected between base and Pin 2 (emitter). This configuration forms a Thevenin-equivalent bias network that pulls base toward emitter when input is low, ensuring clean cutoff-confirmed in Figure 9 test circuit and Section 11 resistor calculation methodology.
Does PDTC123JT-QR support PWM switching above 100 kHz?
Yes. With fT = 230 MHz and typical turn-on/turn-off times below 50 ns (inferred from VCE(sat) and hFE data), PDTC123JT-QR supports clean PWM operation up to at least 500 kHz. However, layout parasitics and load inductance dominate real-world edge rates-not the device itself.
PDTC123JT-QR 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:
- 230 MHz
- Power - Max:
- 250 mW
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-236AB
PDTC123JT-QR FAQ
1.How can I place an order for PDTC123JT-QR through Aetrix?
Please submit a Request for Quotation (RFQ) for PDTC123JT-QR 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-QR reliable?
The price and inventory of PDTC123JT-QR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDTC123JT-QR is usually 5 days.
3.What payment methods are accepted for PDTC123JT-QR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDTC123JT-QR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDTC123JT-QR?
PDTC123JT-QR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDTC123JT-QR 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-QR?
For technical support, including PDTC123JT-QR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDTC123JT-QR requirements.
6.How does Aetrix verify that PDTC123JT-QR is sourced from the original manufacturer or authorized distributors?
All PDTC123JT-QR 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-QR meets industry standards.
7.What is the process for return or replacement of PDTC123JT-QR?
All PDTC123JT-QR units undergo pre-shipment inspection (PSI). If there is an issue with PDTC123JT-QR, 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-QR part is unused and in its original packaging.
Return procedure for PDTC123JT-QR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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