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Nexperia USA Inc. PDTB123EUX
- Part No.:
- PDTB123EUX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- SC-70, SOT-323
- Datasheet:
-
PDTB123EUX.pdf
- Description:
- TRANS PREBIAS PNP 50V SOT323
- Quantity:
- Payment:
- Shipping:
Inventory:5,832
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Product details
Overview
PDTB123EUX from Nexperia is a PNP resistor-equipped transistor (RET) in SOT323 (SC-70) package, designed for digital switching applications with built-in bias resistors R1 = 2.2 kΩ and R2 = 2.2 kΩ, −50 V VCEO, −500 mA IO, and AEC-Q101 qualification for automotive use.
For engineers reviewing the PDTB123EUX datasheet, PDTB123EUX pinout, PDTB123EUX application, or PDTB123EUX equivalent, key selection factors include its fixed 1:1 resistor ratio, low saturation voltage (−100 mV at −50 mA), high-temperature operation up to 175 °C, and compatibility with IC-driven logic-level control in space-constrained PCB layouts.
Technical Context
This RET integrates a PNP bipolar transistor with two monolithically embedded silicon resistors-R1 (base input) and R2 (base-emitter)-enabling single-resistor external drive and eliminating discrete bias networks. Its 1:1 R2/R1 ratio (0.9–1.1 typ.) ensures predictable turn-on threshold and stable DC current gain (hFE = 40 min at −50 mA).
Rated for −50 V collector-emitter voltage and −500 mA output current, it operates across −55 °C to +175 °C ambient, with thermal resistance Rth(j-a) = 353 K/W on 4-layer FR4 PCB, supporting high-reliability automotive body electronics and industrial control modules where board area and assembly count are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | −50 V - Maximum safe collector-emitter blocking voltage in open-base configuration, enabling use in 24 V automotive loads and 36 V industrial rails. |
| IO | −500 mA - Continuous output current capability, sufficient for driving relays, LEDs, and small solenoids without external heat sinking. |
| R1 / R2 | 2.2 kΩ / 2.2 kΩ - Matched internal bias resistors simplify gate/base drive design and ensure consistent VI(on)/VI(off) thresholds across temperature. |
| VCE(sat) | −100 mV max at −50 mA - Low saturation voltage minimizes power loss and self-heating during active conduction, improving efficiency in battery-powered systems. |
| hFE | 40 min at −50 mA, −5 V - Guaranteed DC current gain supports reliable switching with modest base drive, reducing MCU GPIO current demand. |
| AEC-Q101 | Qualified - Meets stress-test requirements for automotive discrete semiconductors, permitting use in under-hood and cabin control modules. |
| Tj max | 175 °C - Junction temperature rating enables operation in high-ambient environments such as engine management and power distribution units. |
Pinout & Package
SOT323 (SC-70) plastic surface-mounted package: 1.35 mm × 1.15 mm × 0.45 mm footprint, 3-terminal leadframe, optimized for reflow soldering per IPC-7351B.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Input (base) | Connected internally to R1; accepts logic-level or microcontroller GPIO drive; defines VI(on) and VI(off) thresholds. |
| 2 | GND (emitter) | Emitter terminal tied to system ground; serves as common reference for load return path and bias network. |
| 3 | Output (collector) | Switched high-side output node; connects to load (e.g., relay coil anode); sinks current when active. |
Key Features
| Feature | Design Value |
|---|---|
| Built-in bias resistors | Eliminates need for two external resistors, reducing BOM count and PCB area by ~2.5 mm² per instance. |
| ±10 % R2/R1 tolerance | Ensures tight matching between feedback and input resistors, stabilizing switching thresholds across production lots and temperature. |
| −100 mV VCE(sat) | Reduces conduction loss to ≤5 mW at 50 mA, enabling direct drive from low-power MCUs without thermal derating. |
| AEC-Q101 qualification | Validates reliability for automotive Grade 2 (−40 °C to +105 °C ambient) and extended-temp applications up to 175 °C junction. |
| SC-70 footprint | Compatible with standard 0805 pick-and-place equipment and IPC-compliant reflow profiles, supporting high-volume manufacturing. |
Applications
| Automotive Body Control | Industrial PLC Output Stage |
|---|---|
Use Scenario: Driving door lock actuators and interior lighting circuits in vehicle body control modules (BCM). IC Role / Device Role / Timing Role: High-side switch controlling 12 V/24 V inductive and resistive loads with fast turn-on/off and ESD robustness. Use Value: AEC-Q101 qualification and 175 °C Tj rating ensure long-term reliability in under-dash environments with minimal thermal margin. |
Use Scenario: Replacing discrete BJT+resistor combinations in 24 V DC output cards of programmable logic controllers. IC Role / Device Role / Timing Role: Digital output driver interfacing FPGA or microcontroller GPIO to field-side loads with galvanic isolation. Use Value: Integrated R1/R2 reduces component count per channel by two parts, lowering assembly cost and increasing channel density on compact I/O boards. |
| Consumer Appliance Control | Medical Diagnostic Equipment |
Use Scenario: Controlling indicator LEDs, buzzer drivers, and small solenoid valves in smart home appliances (e.g., washing machine control boards). IC Role / Device Role / Timing Role: Logic-compatible PNP switch translating 3.3 V/5 V MCU outputs to 5–24 V load control with minimal external components. Use Value: −100 mV VCE(sat) limits self-heating during continuous LED drive, avoiding thermal shutdown in sealed enclosures. |
Use Scenario: Isolating microcontroller signals from patient-connected peripherals in portable diagnostic devices requiring low leakage and high reliability. IC Role / Device Role / Timing Role: Safe, low-current switching element for enabling/disabling sensor bias supplies and signal path routing. Use Value: ICEO ≤ −0.5 µA at −50 V ensures negligible standby current in battery-operated devices, extending operational life between charges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PNP resistor-equipped transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PDTB123YU | R2 = 10 kΩ (R2/R1 = 4.55 typ.), higher VI(off) (−1.0 V max), lower hFE (70 typ.) | Better noise immunity in noisy industrial environments due to higher off-threshold; suited for slower-switching, high-impedance nodes. | Select when higher input hysteresis is needed to reject EMI, and lower gain is acceptable for robust saturation. |
| BC807-40 | Discrete PNP BJT (no integrated resistors), requires external RB; hFE = 100–630, VCE(sat) = −200 mV min | Greater flexibility in bias design but increases component count and layout complexity; not AEC-Q101 qualified. | Choose only if custom biasing, higher gain, or non-automotive qualification suffices-and board area is not constrained. |
Compared with PDTB123YU, PDTB123EUX offers tighter R2/R1 matching and lower VI(on), enabling faster, more deterministic switching in logic-driven systems; versus BC807-40, it trades design flexibility for reduced BOM, smaller footprint, and automotive-grade reliability-critical for volume automotive and industrial designs.
Availability
PDTB123EUX is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLC output stages, and consumer appliance control boards requiring stable component supply, AEC-Q101 compliance, and high-temperature operation.
Supply support for PDTB123EUX 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 and logic devices for automotive, industrial, and consumer markets.
PDTB123EUX belongs to the PDTB1xxxU series of resistor-equipped transistors engineered for simplified digital switching in space- and reliability-critical applications-reducing bill-of-materials and enhancing functional safety in automotive electronics.
FAQ
What is the maximum operating temperature for PDTB123EUX?
The PDTB123EUX has a maximum junction temperature (Tj) of 175 °C and operates across an ambient range of −55 °C to +175 °C. Its thermal resistance is 353 K/W on a 4-layer FR4 PCB, allowing full −500 mA output current at +105 °C ambient when properly mounted-making it suitable for under-hood automotive locations.
Can PDTB123EUX replace BC807-40 in existing designs?
Yes-but with circuit modification. PDTB123EUX integrates R1 and R2 (2.2 kΩ each), so external base resistors must be removed. Its VI(on) (−1.0 to −2.0 V) and VCE(sat) (−100 mV) differ from BC807-40's −0.7 V VBE and −200 mV VCE(sat). Layout space savings and AEC-Q101 qualification are primary benefits; verify logic-level compatibility and thermal performance in the target application.
What does the 'EU' suffix indicate in PDTB123EUX?
The 'EU' suffix denotes the SOT323 (SC-70) package variant with standard lead finish (SnAgCu), RoHS-compliant, and qualified per AEC-Q101. It distinguishes this version from 'ZU', 'YU', and 'XU' variants that differ in R2 value and resulting VI(off)/VI(on) thresholds-ensuring correct bias behavior for the intended drive conditions.
Is PDTB123EUX suitable for PWM-driven loads?
Yes. With fT = 140 MHz (typ.) and low Cc = 11 pF, PDTB123EUX supports PWM frequencies up to several MHz in low-duty-cycle applications. Its −100 mV VCE(sat) minimizes conduction loss, while the integrated resistors provide stable turn-on/turn-off timing-ideal for LED dimming and solenoid pulse-width control in automotive and industrial systems.
PDTB123EUX 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:
- PNP - Pre-Biased
- Current - Collector (Ic) (Max):
- 500 mA
- Voltage - Collector Emitter Breakdown (Max):
- 50 V
- Resistor - Base (R1):
- 2.2 kOhms
- Resistor - Emitter Base (R2):
- 2.2 kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 40 @ 50mA, 5V
- Vce Saturation (Max) @ Ib, Ic:
- 100mV @ 2.5mA, 50mA
- Current - Collector Cutoff (Max):
- 500nA
- Frequency - Transition:
- 140 MHz
- Power - Max:
- 300 mW
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-323
PDTB123EUX FAQ
1.How can I place an order for PDTB123EUX through Aetrix?
Please submit a Request for Quotation (RFQ) for PDTB123EUX 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 PDTB123EUX reliable?
The price and inventory of PDTB123EUX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDTB123EUX is usually 5 days.
3.What payment methods are accepted for PDTB123EUX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDTB123EUX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDTB123EUX?
PDTB123EUX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDTB123EUX 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 PDTB123EUX?
For technical support, including PDTB123EUX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDTB123EUX requirements.
6.How does Aetrix verify that PDTB123EUX is sourced from the original manufacturer or authorized distributors?
All PDTB123EUX 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 PDTB123EUX meets industry standards.
7.What is the process for return or replacement of PDTB123EUX?
All PDTB123EUX units undergo pre-shipment inspection (PSI). If there is an issue with PDTB123EUX, 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 PDTB123EUX part is unused and in its original packaging.
Return procedure for PDTB123EUX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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