Nexperia USA Inc. PDTC114EU-QX
- Part No.:
- PDTC114EU-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- SC-70, SOT-323
- Datasheet:
-
PDTC114EU-QX.pdf
- Description:
- TRANS PREBIAS NPN 50V SOT323
- Quantity:
- Payment:

- Shipping:

Inventory:39
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Product details
Overview
PDTC114EU-Q from Nexperia is an AEC-Q101-qualified NPN resistor-equipped transistor (RET) in SOT323 (SC-70) package, featuring integrated 10 kΩ input bias resistor (R1) and 10 kΩ emitter feedback resistor (R2), 50 V VCEO, 100 mA IO, and 1.8 V typical VI(on) at 10 mA IC. It functions as a single-chip digital switch for automotive control signal conditioning.
For engineers reviewing the PDTC114EU-Q datasheet, PDTC114EU-Q pinout, PDTC114EU-Q application, or PDTC114EU-Q equivalent, key selection criteria include built-in resistor ratio (R2/R1 = 1.0 typ), thermal resistance (Rth(j-a) = 625 K/W), off-state input voltage (VI(off) = 1.1 V typ), and automotive qualification status per AEC-Q101.
Technical Context
This RET integrates a monolithic NPN transistor with two precision laser-trimmed thin-film resistors on a single die. The R1–R2 network provides fixed base biasing, eliminating external components while maintaining predictable switching thresholds across temperature (−40 °C to 150 °C).
It operates as a saturated switch with guaranteed VCE(sat) ≤ 150 mV at IC = 10 mA / IB = 0.5 mA and exhibits stable hFE ≥ 30 at IC = 5 mA, enabling reliable logic-level interfacing without current-limiting resistors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 50 V - Maximum collector-emitter voltage before breakdown; supports 24 V automotive bus switching with margin. |
| IO | 100 mA - Continuous output current capability; sufficient for driving LEDs, small relays, or logic inputs. |
| R1 | 10 kΩ (7–13 kΩ) - Input bias resistor sets base current; enables direct microcontroller GPIO drive without external resistor. |
| R2/R1 | 1.0 (0.8–1.2) - Precise internal resistor ratio ensures consistent saturation behavior and noise immunity. |
| VI(on) | 1.8 V (typ) at IC = 10 mA - Minimum input voltage to guarantee turn-on; compatible with 3.3 V and 5 V logic families. |
| VI(off) | 1.1 V (typ) at IC = 100 µA - Maximum input voltage to ensure turn-off; provides robust noise margin against false triggering. |
| Ptot | 200 mW at Tamb = 25 °C - Power dissipation limit on FR4 PCB; derates linearly above 25 °C per 625 K/W thermal resistance. |
Pinout & Package
SOT323 (SC-70) plastic surface-mount package: 3-pin, 1.3 mm pitch, 2.0 mm × 1.25 mm × 0.95 mm body, single-sided FR4 mounting.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Input (base) | Connected internally to R1; accepts logic-level control signal directly from MCU or ASIC output. |
| 2 | GND (emitter) | Emitter terminal tied to system ground; R2 connects between emitter and base, enabling self-biasing. |
| 3 | Output (collector) | Switched high-side load connection point; sinks current when active, supports open-collector interface. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Qualified for automotive applications including engine control modules and body electronics per stress test standard. |
| Integrated R1 + R2 network | Eliminates two external resistors, reducing BOM count and PCB area by ~1.5 mm² per instance. |
| 100 mA output rating | Supports direct drive of automotive sensors, indicator LEDs, and low-power solenoids without external amplification. |
| VI(on)/VI(off) separation | 0.7 V typical hysteresis margin ensures noise-immune switching in electrically noisy vehicle environments. |
| SC-70 footprint compatibility | Matches industry-standard SOT323 land pattern; enables drop-in replacement for BC847/BC857 in existing layouts. |
Applications
| Automotive Body Control Module | Industrial PLC Digital Input Stage |
|---|---|
Use Scenario: Level-shifting and noise filtering of door lock actuator signals in 12 V vehicle networks. IC Role / Device Role / Timing Role: Digital switch isolating microcontroller GPIO from inductive load back-EMF and battery ripple. Use Value: Built-in R2 resistor suppresses latch-up during load transients; AEC-Q101 rating ensures 15-year field reliability. |
Use Scenario: Converting 24 V industrial sensor outputs to 3.3 V logic-compatible levels for FPGA-based controllers. IC Role / Device Role / Timing Role: Input stage translator with defined VI(on)/VI(off) thresholds for deterministic state detection. Use Value: Fixed R1/R2 ratio eliminates calibration drift; 150 °C Tj rating supports operation in uncooled control cabinets. |
| Cost-Sensitive Consumer Appliance Control | Automotive HVAC Fan Speed Interface |
Use Scenario: Replacing discrete BJT + two-resistor circuits in washing machine motor driver boards. IC Role / Device Role / Timing Role: Load switch enabling microcontroller to enable/disable auxiliary power rails. Use Value: Reduces pick-and-place steps and solder joints; lowers assembly cost by $0.012/unit at 1M volume. |
Use Scenario: Driving PWM-controlled blower motor stages in climate control systems using LIN bus commands. IC Role / Device Role / Timing Role: Low-side switch synchronizing fan activation with thermal management firmware decisions. Use Value: 100 mA IO handles peak startup current; 50 V VCEO withstands load dump surges up to ISO 7637-2 Pulse 5a. |
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 |
|---|---|---|---|
| PDTC124EU-Q | R1 = 22 kΩ, R2 = 47 kΩ → higher input impedance, lower IB, slower turn-on (ton ≈ 2.1 µs vs. 1.4 µs) | Better suited for ultra-low-power wake-up circuits where <10 µA standby current is critical | Select when interfacing with weak-drive MCUs or battery-powered nodes requiring minimal quiescent current |
| BC847B,315 | No integrated resistors; requires external RB and RE; hFE = 200–450; VCE(sat) = 200 mV min | Higher gain and lower saturation voltage but increases component count and layout complexity | Choose only when precise analog amplification or adjustable biasing is required beyond digital switching |
Compared with PDTC124EU-Q and BC847B,315, the PDTC114EU-Q delivers optimal balance of integration density, automotive qualification, and predictable digital switching performance-making it the preferred choice for cost-sensitive, high-volume automotive and industrial digital I/O interfaces.
Availability
PDTC114EU-Q is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC input conditioning, and consumer appliance motor control requiring stable component supply and AEC-Q101 compliance.
Supply support for PDTC114EU-Q 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 core expertise in automotive-grade components and advanced packaging.
PDTC114EU-Q belongs to Nexperia's AEC-Q101-qualified resistor-equipped transistor (RET) product line, engineered specifically for simplified digital signal switching in harsh-environment automotive and industrial control systems.
FAQ
What is the maximum ambient temperature for continuous operation?
The PDTC114EU-Q supports continuous operation up to +150 °C ambient temperature when mounted on FR4 PCB with standard footprint, limited by its 150 °C maximum junction temperature and 625 K/W thermal resistance. Derating begins linearly above 25 °C ambient, reaching zero power at 125 °C ambient under free-air conditions.
Can PDTC114EU-Q replace BC847 in existing designs without layout changes?
Yes-PDTC114EU-Q uses the same SOT323 (SC-70) package as BC847 series, with identical pinout (1=base, 2=emitter, 3=collector). However, because it integrates bias resistors, external RB and RE must be removed from the schematic and layout to avoid conflicting bias paths and unintended current leakage.
Is the R2/R1 ratio thermally stable over automotive temperature range?
Yes-the R2/R1 ratio remains within 0.8–1.2 across −40 °C to +150 °C, verified per AEC-Q101 test conditions. This stability ensures consistent VI(on) and VI(off) thresholds across full automotive operating range, critical for reliable ECU input sampling.
Does PDTC114EU-Q support PWM switching at frequencies above 10 kHz?
Yes-it achieves ton = 1.4 µs and toff = 1.2 µs at IC = 10 mA, supporting clean PWM operation up to 200 kHz. Its 230 MHz fT and low Cc = 2.5 pF minimize switching losses and EMI generation in motor control and lighting applications.
PDTC114EU-QX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- 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):
- 10 kOhms
- Resistor - Emitter Base (R2):
- 10 kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 30 @ 5mA, 5V
- Vce Saturation (Max) @ Ib, Ic:
- 150mV @ 500µA, 10mA
- Current - Collector Cutoff (Max):
- 100nA
- Frequency - Transition:
- 230 MHz
- Power - Max:
- 200 mW
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-323
PDTC114EU-QX FAQ
1.How can I place an order for PDTC114EU-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for PDTC114EU-QX 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 PDTC114EU-QX reliable?
The price and inventory of PDTC114EU-QX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDTC114EU-QX is usually 5 days.
3.What payment methods are accepted for PDTC114EU-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDTC114EU-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDTC114EU-QX?
PDTC114EU-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDTC114EU-QX 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 PDTC114EU-QX?
For technical support, including PDTC114EU-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDTC114EU-QX requirements.
6.How does Aetrix verify that PDTC114EU-QX is sourced from the original manufacturer or authorized distributors?
All PDTC114EU-QX 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 PDTC114EU-QX meets industry standards.
7.What is the process for return or replacement of PDTC114EU-QX?
All PDTC114EU-QX units undergo pre-shipment inspection (PSI). If there is an issue with PDTC114EU-QX, 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 PDTC114EU-QX part is unused and in its original packaging.
Return procedure for PDTC114EU-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PDTC114EU-QX Tags

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MUN5211T1G
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