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Nexperia USA Inc. PDTA124EQAZ
- Part No.:
- PDTA124EQAZ
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- 3-XDFN Exposed Pad
- Datasheet:
-
PDTA124EQAZ.pdf
- Description:
- TRANS PREBIAS PNP 50V 0.1A 3DFN
- Quantity:
- Payment:
- Shipping:
Inventory:5,077
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Product details
Overview
PDTA124EQAZ from Nexperia is a 50 V, −100 mA PNP resistor-equipped transistor (RET) in a DFN1010D-3 (SOT1215) package, integrating 22 kΩ input and 22 kΩ base-emitter bias resistors. It functions as a digital switch for IC input control and load switching in space-constrained automotive and industrial PCBs, with AEC-Q101 qualification and −1.1 V to −0.8 V off-state input voltage.
For engineers reviewing the PDTA124EQAZ datasheet, PDTA124EQAZ pinout, PDTA124EQAZ application, or PDTA124EQAZ equivalent, this device offers verified PNP switching performance with built-in biasing, ultra-thin 0.37 mm profile, AOI-compatible side pads, and direct replacement capability for BC857-series transistors in digital logic interfaces.
Technical Context
This RET integrates two matched 22 kΩ resistors (R1 = R2) to configure a fixed-current-driven PNP switch, eliminating external bias components. Its internal transistor delivers hFE ≥ 60 at −5 mA collector current and −5 V VCE, with VCE(sat) ≤ −150 mV under −10 mA/−0.5 mA drive conditions.
Designed for high-density SMT assembly, it uses visible and solderable side pads on a 1.1 × 1.0 × 0.37 mm DFN1010D-3 body, enabling automated optical inspection and reducing pick-and-place cost versus discrete resistor-transistor solutions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | −50 V - Maximum safe collector-emitter voltage with open base; supports 24 V automotive rail switching with margin. |
| IO | −100 mA - Continuous output current rating; sufficient for driving LED indicators or small relays. |
| R1 / R2 | 22 kΩ / 22 kΩ - Matched integrated bias resistors; enable direct microcontroller GPIO interfacing without external components. |
| VCE(sat) | ≤ −150 mV @ IC = −10 mA, IB = −0.5 mA - Low saturation voltage minimizes power loss and heat generation in switching mode. |
| hFE | ≥ 60 @ VCE = −5 V, IC = −5 mA - Guaranteed DC current gain ensures reliable turn-on with standard logic-level drive. |
| Tj(max) | 150 °C - Maximum junction temperature; enables operation in under-hood automotive environments. |
| Ptot | 440 mW @ 4-layer FR4 PCB - Total power dissipation limit defines thermal design envelope for board layout. |
Pinout & Package
DFN1010D-3 (SOT1215) is a leadless, ultra-thin surface-mount package measuring 1.1 × 1.0 × 0.37 mm, featuring visible and solderable side pads for AOI compatibility and high-density placement.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Input (base) | Connects to control signal source; internally tied to R1 and R2 network for biasing. |
| 2 | GND (emitter) | Emitter terminal tied to system ground; serves as common reference for input and output paths. |
| 3 | Output (collector) | Switched high-side output node; sinks current when active, compatible with open-collector logic loads. |
| 4 | Output (collector) | Dual-collector configuration enhances current handling and thermal distribution; electrically parallel to Pin 3. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control modules and body electronics. |
| Integrated R1/R2 = 22 kΩ | Eliminates two external resistors, reducing BOM count and PCB area by ~1.5 mm² per instance. |
| 0.37 mm package height | Enables use in ultra-thin portable and wearable devices where Z-axis clearance is constrained. |
| Visible side pads | Supports automated optical inspection of solder joints, improving manufacturing yield and reliability verification. |
| −100 mA output capability | Sufficient to directly drive optocoupler inputs, small solenoids, or logic-level MOSFET gates without buffering. |
Applications
| Automotive Body Control Module | Industrial PLC Input Interface |
|---|---|
Use Scenario: Level-shifting and isolation of 12 V sensor signals into 3.3 V microcontroller GPIOs. IC Role / Device Role / Timing Role: PNP switch configured as active-low input buffer with built-in pull-up via R2. Use Value: Eliminates discrete resistor network while maintaining AEC-Q101 compliance and ESD robustness. |
Use Scenario: Converting 24 V field signals to 5 V logic levels for programmable logic controller inputs. IC Role / Device Role / Timing Role: Digital interface translator providing galvanic separation and current limiting. Use Value: Reduces component count per channel and improves AOI traceability in high-volume panel assembly. |
| Consumer Appliance Control Board | Medical Diagnostic Equipment UI |
Use Scenario: Driving status LEDs and buzzer drivers from low-power MCU outputs in white goods. IC Role / Device Role / Timing Role: Load switch managing indicator loads up to 100 mA with minimal footprint. Use Value: Enables 0.37 mm Z-height design for compact front-panel PCB stacking. |
Use Scenario: Isolating user button presses from sensitive analog measurement circuitry. IC Role / Device Role / Timing Role: Debounced digital input conditioner with defined VI(on)/VI(off) thresholds. Use Value: Guarantees noise-immune switching with −1.1 V to −0.8 V off-state voltage window. |
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 |
|---|---|---|---|
| PDTC124EQA | NPN complement with identical R1/R2 = 22 kΩ values and matching SOT1215 package. | Requires inverted logic drive and low-side switching topology instead of high-side sink. | Select when circuit architecture mandates NPN configuration or shared emitter return path. |
| BC857B,215 | Discrete PNP transistor without integrated bias resistors; requires two external 22 kΩ resistors. | Higher BOM count and larger PCB footprint; lacks AEC-Q101 qualification and AOI-optimized packaging. | Choose only if legacy design reuse or parametric fine-tuning of bias network is required. |
Compared with PDTC124EQA, PDTA124EQAZ provides native high-side sinking and simplified layout; versus BC857B,215, it reduces component count by two resistors and adds automotive qualification and AOI support.
Availability
PDTA124EQAZ is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLC input interfaces, consumer appliance control boards, and medical diagnostic equipment UIs requiring stable component supply and long-term lifecycle assurance.
Supply support for PDTA124EQAZ 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-enhancing components, delivering high-performance, reliable, and scalable solutions for automotive, industrial, and consumer markets.
PDTA124EQAZ belongs to the AEC-Q101-qualified RET family designed specifically for space-constrained digital switching applications where integration, reliability, and manufacturability are critical.
FAQ
What is the maximum operating temperature for PDTA124EQAZ?
The PDTA124EQAZ has a maximum junction temperature (Tj) of 150 °C and an ambient operating range of −55 °C to +150 °C. Its thermal resistance is 284 K/W on a 4-layer FR4 PCB, enabling reliable operation in under-hood automotive environments when properly heatsinked.
Can PDTA124EQAZ replace BC857B in existing designs?
Yes - PDTA124EQAZ serves as a drop-in functional replacement for BC857B in digital switching applications, offering identical VCEO (−50 V), IO (−100 mA), and hFE (≥60) specs, plus integrated 22 kΩ bias resistors that eliminate two external components and reduce PCB area.
How does the dual-collector pin configuration affect layout?
Pins 3 and 4 are internally connected collectors, allowing either pin to be used for output routing. This dual-terminal arrangement improves current sharing and thermal spreading, and simplifies fanout routing in dense layouts without requiring vias or jumpers.
Is PDTA124EQAZ compatible with lead-free reflow profiles?
Yes - the DFN1010D-3 package is qualified for standard JEDEC J-STD-020 lead-free reflow profiles, including peak temperatures up to 260 °C. The recommended solder land pattern and thermal pad design are documented in Nexperia's SOT1215 footprint guide.
PDTA124EQAZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- 3-XDFN Exposed Pad
- 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):
- 22 kOhms
- Resistor - Emitter Base (R2):
- 22 kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 60 @ 5mA, 5V
- Vce Saturation (Max) @ Ib, Ic:
- 150mV @ 500µA, 10mA
- Current - Collector Cutoff (Max):
- 1µA
- Frequency - Transition:
- 180 MHz
- Power - Max:
- 280 mW
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DFN1010D-3
PDTA124EQAZ FAQ
1.How can I place an order for PDTA124EQAZ through Aetrix?
Please submit a Request for Quotation (RFQ) for PDTA124EQAZ 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 PDTA124EQAZ reliable?
The price and inventory of PDTA124EQAZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDTA124EQAZ is usually 5 days.
3.What payment methods are accepted for PDTA124EQAZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDTA124EQAZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDTA124EQAZ?
PDTA124EQAZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDTA124EQAZ 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 PDTA124EQAZ?
For technical support, including PDTA124EQAZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDTA124EQAZ requirements.
6.How does Aetrix verify that PDTA124EQAZ is sourced from the original manufacturer or authorized distributors?
All PDTA124EQAZ 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 PDTA124EQAZ meets industry standards.
7.What is the process for return or replacement of PDTA124EQAZ?
All PDTA124EQAZ units undergo pre-shipment inspection (PSI). If there is an issue with PDTA124EQAZ, 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 PDTA124EQAZ part is unused and in its original packaging.
Return procedure for PDTA124EQAZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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