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Nexperia USA Inc. PDTA123EU-QX
- Part No.:
- PDTA123EU-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- SC-70, SOT-323
- Datasheet:
-
PDTA123EU-QX.pdf
- Description:
- PDTA123EU-Q/SOT323/SC-70
- Quantity:
- Payment:
- Shipping:
Inventory:7,148
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Product details
Overview
PDTA123EU-Q from Nexperia is a PNP resistor-equipped transistor (RET) in SOT323 (SC-70) package, featuring integrated bias resistors R1 = 2.2 kΩ and R2 = 2.2 kΩ, VCEO = −50 V, IO = −100 mA, and AEC-Q101 qualification for automotive use. It functions as a single-stage digital switch or level translator in low-power interface circuits.
For engineers reviewing the PDTA123EU-Q datasheet, PDTA123EU-Q pinout, PDTA123EU-Q application, or PDTA123EU-Q equivalent, key selection criteria include its fixed R1/R2 = 1.0 ratio, guaranteed VI(off) ≤ −0.5 V and VI(on) ≥ −2.0 V, −150 mV VCEsat at −10 mA/−0.5 mA, and thermal resistance of 625 K/W on FR4 PCB.
Technical Context
This RET integrates two precision thin-film resistors (R1 between base and input, R2 between base and emitter) to form a monolithic PNP switching element with built-in bias network. Its fixed R1/R2 = 1.0 ±20% ratio ensures predictable turn-on/off thresholds across temperature.
The device operates with open-base VCEO = −50 V and supports continuous output current up to −100 mA at Tamb ≤ 25 °C. Junction temperature is rated to 150 °C, and it meets AEC-Q101 stress test requirements for automotive under-hood environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | −50 V - Maximum safe collector-emitter voltage with base open; defines maximum blocking capability in switching applications. |
| IO | −100 mA - Continuous DC output current rating; sets upper limit for load drive capability in logic-level interfaces. |
| R1 | 2.2 kΩ (1.54–2.86 kΩ) - Input bias resistor value; determines base current sourcing path and input impedance. |
| R2/R1 | 1.0 (0.8–1.2) - Fixed internal resistor ratio; ensures stable switching threshold independent of absolute resistor tolerance. |
| VCEsat | −150 mV @ IC = −10 mA, IB = −0.5 mA - Low saturation voltage enables efficient power delivery and minimal voltage drop in active-low drivers. |
| VI(off) | −1.2 to −0.5 V - Input voltage range guaranteeing device cutoff; allows reliable interfacing with 3.3 V or 5 V CMOS logic outputs. |
| Ptot | 200 mW @ Tamb ≤ 25 °C - Total power dissipation limit on standard FR4 PCB; constrains usable current/voltage combinations in thermally constrained layouts. |
Pinout & Package
Package: SOT323 (SC-70), plastic surface-mounted, 3-lead, 1.3 mm pitch, 2.0 mm × 1.25 mm × 0.95 mm body. Mounting footprint conforms to Nexperia sot323_fr reflow standard.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Input (base connection via R1) | Signal input node; connects externally to driving source; internally tied to R1 top terminal. |
| 2 | GND (emitter) | Emitter reference terminal; serves as common return path and ground reference for bias network (R2 bottom). |
| 3 | Output (collector) | Active output node; sinks current when driven; used for low-side switching or inverted logic output. |
Key Features
| Feature | Design Value |
|---|---|
| Built-in bias resistors R1 and R2 | Eliminates need for two external resistors, reducing BOM count and PCB area by ~2 components per switch instance. |
| AEC-Q101 qualification | Validated for automotive-grade reliability including HTOL, TC, HAST, and ESD testing-enables direct use in infotainment, body control, and ADAS subsystems. |
| Fixed R2/R1 = 1.0 ratio | Ensures consistent input threshold behavior across process variation and temperature, simplifying logic-level compatibility analysis. |
| Low VCEsat = −150 mV | Minimizes conduction loss and self-heating during sustained switching, supporting higher duty-cycle operation without derating. |
Applications
| Automotive Body Control Module | Industrial PLC Digital Input Interface |
|---|---|
Use Scenario: Driving LED status indicators and relay coils in door module PCBs with 3.3 V microcontroller GPIOs. IC Role / Device Role: Level-shifting, current-sinking switch translating MCU logic-high to collector-emitter conduction. Use Value: Eliminates discrete base resistor pair while maintaining AEC-Q101 compliance and −150 mV saturation for <100 mW thermal load. | Use Scenario: Isolating 24 V field sensor inputs to 3.3 V FPGA I/O banks in modular I/O cards. IC Role / Device Role: Active-low signal conditioner converting industrial voltage levels to safe logic-compatible signals. Use Value: Built-in R1/R2 network provides defined input hysteresis margin and eliminates layout sensitivity to stray capacitance. |
| Consumer Appliance Power Sequencing | Medical Diagnostic Equipment Fan Control |
Use Scenario: Enabling 12 V cooling fans only after main power rail stabilization in smart oven control boards. IC Role / Device Role: Delayed-enable switch controlled by microcontroller reset signal or supervisor output. Use Value: Guaranteed VI(off) ≤ −0.5 V ensures fan remains off until controller asserts valid high-level enable, preventing spurious startup. | Use Scenario: PWM-controlled 5 V brushless fan driver stage in portable ultrasound units requiring low EMI and silent operation. IC Role / Device Role: Low-noise, low-VCEsat current sink modulating fan speed via base-driven switching. Use Value: −150 mV saturation minimizes audible coil whine and improves efficiency over discrete BJT + resistor solutions. |
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 |
|---|---|---|---|
| PDTC123EU | NPN complement with identical R1/R2 values and package; VCEO = +50 V, IO = +100 mA. | Requires high-side or sourcing configuration instead of low-side sinking; incompatible with existing PNP-based schematics. | Select only when circuit topology mandates NPN logic polarity or sourcing output. |
| NSV123EU | AEC-Q101 qualified PNP RET with R1 = 2.2 kΩ, R2 = 47 kΩ (R2/R1 ≈ 21.4); higher input impedance, slower switching. | Suitable for high-impedance microcontroller inputs but not direct replacement due to mismatched R2/R1 ratio and VI(off) shift. | Choose only when higher input resistance is required and VI(off) > −1.0 V is acceptable. |
Compared with PDTC123EU and NSV123EU, PDTA123EU-Q offers matched R1/R2 = 1.0 for symmetric threshold design, lowest VCEsat, and direct compatibility with legacy PNP-switch layouts requiring precise off-state voltage margins.
Availability
PDTA123EU-Q is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLC digital input interfaces, consumer appliance power sequencing, and medical diagnostic equipment fan control requiring stable component supply and AEC-Q101 traceability.
Supply support for PDTA123EU-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 essential semiconductors, delivering high-performance, reliable components for automotive, industrial, and consumer markets.
PDTA123EU-Q belongs to Nexperia's Automotive Qualified Resistor-Equipped Transistor (RET) product line, engineered to replace discrete BJT + resistor combinations in space-constrained, high-reliability switching applications.
FAQ
What is the maximum ambient temperature for continuous operation at full rated current?
The PDTA123EU-Q supports continuous −100 mA output current only when ambient temperature is ≤25 °C, as specified in the limiting values table. At higher temperatures, current must be derated per the thermal resistance (Rth(j-a) = 625 K/W) and junction temperature limit of 150 °C. For example, at Tamb = 85 °C, maximum allowable IO drops to approximately −60 mA to maintain Tj ≤ 150 °C.
Can PDTA123EU-Q be used in AC-coupled signal paths?
No - PDTA123EU-Q is a DC-coupled switching device with fixed internal bias resistors optimized for digital on/off operation. Its R1/R2 network establishes static DC operating points, and it lacks frequency compensation or small-signal linearity specifications. For AC signal amplification or coupling, a discrete BJT or RF transistor with external biasing is required.
Is the marking code "%42" sufficient for full traceability?
Yes - "%42" is the standardized top-side marking per Nexperia's specification, where "%" is a placeholder for the manufacturing site code (e.g., "A", "B") and "42" identifies the PDTA123EU-Q die version. Full traceability is maintained through lot codes on reels and shipping documentation, aligned with ISO/TS 16949 and AEC-Q101 audit requirements.
Does this part support pulse-current operation beyond 100 mA?
Yes - the peak collector current (ICM) rating is −100 mA, matching the DC rating; no higher pulse rating is specified. The datasheet does not define safe operating area (SOA) curves or pulse-width limits. Exceeding −100 mA - even briefly - violates absolute maximum ratings and risks permanent damage due to localized heating or bond-wire fusing.
PDTA123EU-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:
- PNP - 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):
- 2.2 kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 30 @ 20mA, 5V
- Vce Saturation (Max) @ Ib, Ic:
- 150mV @ 500µA, 10mA
- Current - Collector Cutoff (Max):
- 100nA
- Frequency - Transition:
- -
- Power - Max:
- 200 mW
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-323
PDTA123EU-QX FAQ
1.How can I place an order for PDTA123EU-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for PDTA123EU-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 PDTA123EU-QX reliable?
The price and inventory of PDTA123EU-QX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDTA123EU-QX is usually 5 days.
3.What payment methods are accepted for PDTA123EU-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDTA123EU-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDTA123EU-QX?
PDTA123EU-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDTA123EU-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 PDTA123EU-QX?
For technical support, including PDTA123EU-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDTA123EU-QX requirements.
6.How does Aetrix verify that PDTA123EU-QX is sourced from the original manufacturer or authorized distributors?
All PDTA123EU-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 PDTA123EU-QX meets industry standards.
7.What is the process for return or replacement of PDTA123EU-QX?
All PDTA123EU-QX units undergo pre-shipment inspection (PSI). If there is an issue with PDTA123EU-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 PDTA123EU-QX part is unused and in its original packaging.
Return procedure for PDTA123EU-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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