Nexperia USA Inc. PDTC123YT-QVL
- Part No.:
- PDTC123YT-QVL
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
PDTC123YT-QVL.pdf
- Description:
- PDTC123YT-Q/SOT23/TO-236AB
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
PDTC123YT-QVL from Nexperia is an AEC-Q101-qualified NPN resistor-equipped transistor (RET) in SOT23 package, featuring integrated bias resistors R1 = 2.2 kΩ and R2 = 10 kΩ, VCEO = 50 V, IO = 100 mA, and hFE ≥ 35 at IC = 5 mA - used for automotive-grade logic-level switching in interface circuits.
For engineers reviewing the PDTC123YT-QVL datasheet, PDTC123YT-QVL pinout, PDTC123YT-QVL application, or PDTC123YT-QVL equivalent, this part supports simplified BJT biasing in space-constrained automotive control modules, eliminating external base resistors while maintaining thermal reliability up to Tj = 150 °C.
Technical Context
This RET integrates two precision silicon-based bias resistors directly into the NPN die structure: R1 connects base to input, R2 shunts base to emitter, enabling single-resistor drive with predictable VI(on)/VI(off) thresholds. Its fixed R2/R1 ratio of 4.5 (typ.) ensures stable saturation behavior across temperature.
Designed for DC-coupled switching-not linear amplification-it delivers guaranteed VCEsat ≤ 150 mV at IC = 10 mA / IB = 0.5 mA and exhibits low leakage: ICEO ≤ 5 µA at Tj = 150 °C, supporting robust operation in under-hood environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 50 V maximum - defines safe collector-emitter voltage swing before breakdown in open-base configuration |
| IO | 100 mA continuous output current - sets maximum load-driving capability without derating at Tamb ≤ 25 °C |
| R1 | 2.2 kΩ ±30% - input bias resistor value determining base current magnitude for given input voltage |
| R2/R1 | 4.5 (typ.) - fixed internal resistor ratio enabling predictable turn-off threshold and noise immunity |
| hFE | ≥35 at VCE = 5 V, IC = 5 mA - minimum DC current gain ensuring reliable saturation with standard logic-level drive |
| VCEsat | ≤150 mV at IC = 10 mA, IB = 0.5 mA - guarantees low conduction loss and minimal self-heating during active switching |
| Ptot | 250 mW at Tamb = 25 °C - total power dissipation limit on FR4 PCB, defining thermal design margin |
Pinout & Package
SOT23 plastic surface-mount package: 3-terminal, 1.9 mm pitch, 2.9 mm × 1.3 mm × 1.0 mm body height; optimized for reflow soldering per Fig. 9 footprint (0.6 mm × 0.7 mm pads).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Input (base) | Connected internally to R1; accepts logic-level drive voltage (VI(on) ≈ 1.15 V typ. at IC = 20 mA) |
| 2 | Ground (emitter) | Common reference node; ties emitter to system ground and provides return path for R2 current |
| 3 | Output (collector) | Switched high-side load connection point; rated for 50 V and 100 mA continuous current |
Key Features
| Feature | Design Value |
|---|---|
| Integrated R1 + R2 bias network | Eliminates 2 external resistors, reducing BOM count and PCB area in discrete switch designs |
| AEC-Q101 qualification | Validated for automotive applications including engine control, body electronics, and lighting modules |
| Guaranteed VI(off) ≤ 0.3 V | Ensures reliable cutoff under noisy conditions or weak pull-downs, preventing unintended turn-on |
| Thermal resistance Rth(j-a) | 500 K/W on standard FR4 - enables operation up to 150 °C junction temperature with passive cooling |
| Low Cc = 2 pF | Minimizes capacitive loading on driving source, preserving signal integrity in high-speed digital interfaces |
Applications
| Automotive Door Module Switching | LED Driver Interface |
|---|---|
Use Scenario: Controlling window lift motor enable signals in door control units subject to vibration and temperature cycling. IC Role / Device Role / Timing Role: NPN RET acts as a level-shifting, current-amplifying switch between microcontroller GPIO and motor driver IC input. Use Value: Integrated R1/R2 eliminates layout sensitivity to trace parasitics and ensures consistent turn-on/turn-off timing across production units. |
Use Scenario: Driving indicator LEDs in instrument clusters where space and component count are constrained. IC Role / Device Role / Timing Role: Functions as a saturated switch translating 3.3 V logic outputs to 12 V LED supply rails. Use Value: VCEsat ≤ 150 mV minimizes power loss and heat generation in sealed enclosures with limited airflow. |
| Industrial PLC Input Buffer | USB Port Power Switch Control |
Use Scenario: Isolating field sensor signals (e.g., proximity switches) from programmable logic controller inputs. IC Role / Device Role / Timing Role: Provides galvanically isolated, resistor-biased switching stage converting 24 V industrial signals to 5 V logic levels. Use Value: VI(off) ≤ 0.3 V prevents false triggering from EMI-induced voltage spikes on long cable runs. |
Use Scenario: Enabling/disabling VBUS power to downstream USB peripherals in embedded host devices. IC Role / Device Role / Timing Role: Acts as a controlled pass element between 5 V supply and USB port, driven by SoC GPIO. Use Value: AEC-Q101 qualification ensures reliability over extended thermal cycles typical in portable docking stations. |
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 |
|---|---|---|---|
| PDTC114YK-Q | R1 = 10 kΩ, R2 = 10 kΩ (R2/R1 = 1.0), lower input sensitivity | Better suited for 5 V CMOS drive; less suitable for 3.3 V logic due to higher VI(on) ≈ 2.2 V | Select when interfacing with higher-voltage controllers and tighter noise margins are required |
| EMX11T2R | PNP RET, complementary topology; R1 = 4.7 kΩ, R2 = 4.7 kΩ; VCEO = −50 V | Used for high-side switching or inverted logic configurations, not direct replacement | Choose only for PNP-based load-switching topologies requiring emitter-follower or active-low control |
Compared with PDTC114YK-Q, PDTC123YT-QVL offers superior 3.3 V logic compatibility via lower VI(on); versus EMX11T2R, it provides NPN polarity essential for low-side switching in most microcontroller-driven loads.
Availability
PDTC123YT-QVL is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLC input stages, and USB power management systems requiring stable component supply with AEC-Q101 compliance.
Supply support for PDTC123YT-QVL 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, headquartered in Nijmegen, Netherlands.
PDTC123YT-QVL belongs to Nexperia's Automotive-Qualified Resistor-Equipped Transistor (RET) product line, engineered specifically to replace discrete BJT + resistor combinations in cost- and space-sensitive automotive signal conditioning and load switching applications.
FAQ
Is PDTC123YT-QVL pin-compatible with standard SOT23 NPN transistors?
No - PDTC123YT-QVL uses a dedicated RET pinout: Pin 1 = input (base), Pin 2 = ground (emitter), Pin 3 = output (collector). Standard SOT23 NPN transistors (e.g., BC847) use Pin 1 = emitter, Pin 2 = base, Pin 3 = collector. Layout redesign is required for substitution.
What is the maximum ambient temperature for continuous operation at full 100 mA load?
At IO = 100 mA and Ptot = 250 mW, the device reaches thermal limit at Tamb ≈ 100 °C on standard FR4 PCB (Rth(j-a) = 500 K/W). Derating is required above this; full rating applies only up to Tamb = 25 °C per datasheet conditions.
Can PDTC123YT-QVL be used in linear amplifier configurations?
No - it is characterized and qualified exclusively for switching operation. The integrated resistors fix bias points, and hFE is specified only at IC = 5 mA (not across a wide range), making it unsuitable for analog amplification where variable bias and gain linearity are required.
Does the "-QVL" suffix indicate tape-and-reel packaging?
Yes - the "-QVL" suffix denotes that the part is supplied in 3,000-unit tape-and-reel format per JEDEC standard J-STD-020, compatible with automated SMT placement equipment. The base type number PDTC123YT-Q refers to the same die and electrical specification.
PDTC123YT-QVL 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):
- 10 kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 35 @ 5mA, 5V
- Vce Saturation (Max) @ Ib, Ic:
- 150mV @ 500µA, 10mA
- Current - Collector Cutoff (Max):
- 100nA
- Frequency - Transition:
- -
- Power - Max:
- 250 mW
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3 (TO-236)
PDTC123YT-QVL FAQ
1.How can I place an order for PDTC123YT-QVL through Aetrix?
Please submit a Request for Quotation (RFQ) for PDTC123YT-QVL 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 PDTC123YT-QVL reliable?
The price and inventory of PDTC123YT-QVL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDTC123YT-QVL is usually 5 days.
3.What payment methods are accepted for PDTC123YT-QVL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDTC123YT-QVL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDTC123YT-QVL?
PDTC123YT-QVL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDTC123YT-QVL 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 PDTC123YT-QVL?
For technical support, including PDTC123YT-QVL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDTC123YT-QVL requirements.
6.How does Aetrix verify that PDTC123YT-QVL is sourced from the original manufacturer or authorized distributors?
All PDTC123YT-QVL 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 PDTC123YT-QVL meets industry standards.
7.What is the process for return or replacement of PDTC123YT-QVL?
All PDTC123YT-QVL units undergo pre-shipment inspection (PSI). If there is an issue with PDTC123YT-QVL, 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 PDTC123YT-QVL part is unused and in its original packaging.
Return procedure for PDTC123YT-QVL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PDTC123YT-QVL Tags

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