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Nexperia USA Inc. PDTB143XQAZ
- Part No.:
- PDTB143XQAZ
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- -
- Datasheet:
-
PDTB143XQAZ.pdf
- Description:
- TRANS PREBIAS
- Quantity:
- Payment:
- Shipping:
Inventory:30,000
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Product details
Overview
PDTB143XQAZ from Nexperia is a PNP resistor-equipped transistor (RET) designed for digital switching in space-constrained PCBs. It features 4.7 kΩ input bias resistor (R1), 10 kΩ pull-down resistor (R2), −50 V VCEO, −500 mA IO, and AEC-Q101 qualification for automotive use - deployed in LED driver control and microcontroller I/O interfacing.
For engineers reviewing the PDTB143XQAZ datasheet, PDTB143XQAZ pinout, PDTB143XQAZ application, or PDTB143XQAZ equivalent, key selection criteria include its integrated R1/R2 ratio (2.13 typ), low VCEsat (−100 mV at IC = −50 mA), ultra-thin DFN1010D-3 package (0.37 mm height), and −7 V VEBO rating for robust input protection.
Technical Context
This RET integrates a PNP bipolar transistor with two monolithically embedded silicon resistors: R1 connects base to input, R2 connects base to emitter, enabling single-pin digital drive without external bias components. Its design eliminates base current calculation and reduces layout complexity in high-density logic interface circuits.
The device operates as a saturated switch with guaranteed DC current gain (hFE ≥ 70 at IC = −50 mA, VCE = −5 V) and supports fast turn-on/turn-off via controlled VI(on)/VI(off) thresholds (−1.4 V typ on-state, −0.75 V typ off-state), making it suitable for 3.3 V and 5 V microcontroller GPIO interfacing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | −50 V: Maximum collector-emitter voltage before breakdown; enables use in 24 V automotive load switching. |
| IO | −500 mA: Continuous output current capability; supports driving medium-power LEDs or relay coils directly. |
| R1 | 4.7 kΩ (typ): Input bias resistor value; sets base current for reliable saturation with standard logic-level inputs. |
| R2/R1 | 2.13 (typ): Fixed resistor ratio ensuring stable turn-off behavior and noise immunity in noisy environments. |
| VCEsat | −100 mV (typ at IC = −50 mA): Low saturation voltage minimizes power loss and self-heating during conduction. |
| VEBO | −7 V: Emitter-base reverse voltage rating; exceeds typical 5 V logic rail, allowing safe operation with margin. |
| fT | 150 MHz: Transition frequency of internal transistor; supports clean switching up to ~10 MHz digital signals. |
| Package | DFN1010D-3 (SOT1215): 1.1 × 1.0 × 0.37 mm leadless package with side-wettable flanks for AOI-compatible solder joint inspection. |
Pinout & Package
DFN1010D-3 (SOT1215) is a 3-terminal, leadless, ultra-thin surface-mount package with visible side pads for automated optical inspection. Body dimensions: 1.1 mm × 1.0 mm × 0.37 mm; thermal pad on underside connected to collector terminal.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Input (base) | Driven by MCU GPIO or logic signal; internal R1 connects this pin to base node. |
| 2 | GND (emitter) | Emitter terminal tied to system ground; provides return path for load current and R2 reference. |
| 3 & 4 | Output (collector) | Parallel-connected collector terminals; handle full −500 mA load current and provide low-inductance thermal path. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive underhood applications per stress test requirements (HTOL, TC, HTRB). |
| Integrated R1 + R2 | Eliminates two external resistors, reducing BOM count and PCB area in digital interface designs. |
| 0.37 mm profile | Enables placement beneath connectors or in stacked modules where Z-height is constrained. |
| ±10% R2/R1 tolerance | Ensures consistent turn-off threshold across production lots, critical for deterministic logic-level translation. |
| Side-wettable flanks | Supports automated optical inspection (AOI) of solder joints without X-ray, improving manufacturing yield. |
Applications
| Automotive Interior Lighting | Industrial PLC I/O Module |
|---|---|
Use Scenario: Driving 24 V LED strips in vehicle cabin lighting with PWM dimming from 3.3 V microcontroller. IC Role / Device Role / Timing Role: Acts as level-shifting, current-sinking switch translating low-voltage logic to high-current load control. Use Value: −500 mA IO and −50 V VCEO allow direct connection to 24 V supply rails; low VCEsat minimizes heat generation during 100 % duty-cycle operation. |
Use Scenario: Interfacing 24 V discrete sensor inputs to 3.3 V FPGA-based logic in programmable logic controller backplane. IC Role / Device Role / Timing Role: Functions as input buffer and voltage translator, converting industrial field voltage levels to safe FPGA I/O thresholds. Use Value: −7 V VEBO and AEC-Q101 qualification ensure reliability against ESD and transients common in factory-floor wiring environments. |
| Consumer Appliance Control Panel | Wearable Device Power Management |
Use Scenario: Enabling/disabling backlight LEDs and buzzer drivers in smart home appliance UI boards using ARM Cortex-M0+ GPIOs. IC Role / Device Role / Timing Role: Serves as compact, resistorless digital switch replacing BC807-40 with reduced assembly cost and footprint. Use Value: DFN1010D-3 package saves >60 % board area vs. SOT23; built-in R1/R2 simplifies firmware bring-up by removing base resistor calculations. |
Use Scenario: Controlling low-power sensors and NFC antenna matching networks in battery-powered hearables with tight thermal budgets. IC Role / Device Role / Timing Role: Provides low-leakage, low-VCEsat switching for periodic sensor activation cycles synchronized to BLE advertising intervals. Use Value: −0.6 µA ICEO at −50 V ensures minimal standby current drain; 0.37 mm height allows integration into sub-5 mm thick earbud assemblies. |
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 |
|---|---|---|---|
| PDTB123YQA | R1 = 2.2 kΩ, R2/R1 = 4.55 typ, VEBO = −5 V | Lower input impedance; less suitable for weak-drive MCUs or long trace routing | Select when higher base current is available and tighter VI(on) control is needed. |
| BC807-40 | Discrete PNP BJT requiring external R1/R2; no integrated resistors; SOT23 package | Higher board area, additional component count, manual bias design required | Choose only if legacy design reuse or parametric tuning beyond fixed RET ratios is necessary. |
Compared with PDTB123YQA, PDTB143XQAZ offers higher input resistance for better noise immunity and wider VI(off) margin; versus BC807-40, it delivers BOM reduction, AOI compatibility, and guaranteed resistor matching - critical for high-volume, miniaturized consumer and automotive electronics.
Availability
PDTB143XQAZ is available at Aetrix Electronics and suitable for automotive interior lighting, industrial PLC I/O modules, consumer appliance control panels, and wearable device power management requiring stable component supply across extended temperature ranges (−55 °C to +150 °C).
Supply support for PDTB143XQAZ 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 leader in discrete, logic, and PowerMOS semiconductors, spun off from NXP in 2017 and focused on high-volume, high-reliability components for automotive, industrial, and computing markets.
This part belongs to Nexperia's Resistor-Equipped Transistor (RET) family, engineered specifically to replace discrete BJT + resistor combinations in digital switching applications while meeting AEC-Q101 and IPC-A-610 standards.
FAQ
What is the maximum ambient temperature for continuous operation?
PDTB143XQAZ supports continuous operation from −55 °C to +150 °C ambient, with junction temperature limited to 150 °C. Derated power dissipation must be observed above 25 °C - e.g., 525 mW on 4-layer FR4 PCB at 25 °C drops to 325 mW on single-layer board at same temperature.
Can PDTB143XQAZ replace BC807-40 in existing designs?
Yes, with layout adaptation: PDTB143XQAZ uses DFN1010D-3 (SOT1215) vs. BC807-40's SOT23, requiring footprint change. Its integrated 4.7 kΩ/10 kΩ resistors eliminate external bias components, but VI(on)/VI(off) thresholds differ - verify logic-level compatibility with your MCU's output swing.
Is the collector terminal electrically isolated from the thermal pad?
No - pins 3 and 4 are both collector terminals and internally connected to the exposed thermal pad on the underside of the DFN1010D-3 package. This pad must be soldered to a PCB copper pour tied to the collector net for optimal thermal performance and electrical function.
What is the recommended reflow profile for DFN1010D-3 mounting?
Use JEDEC J-STD-020-compliant lead-free reflow: peak temperature 260 °C max, time above 217 °C = 60–150 s, ramp rate ≤ 3 °C/s. The SOT1215 footprint requires precise stencil aperture (0.35 mm × 0.45 mm, 0.12 mm thickness) to ensure side-pad wetting and void-free solder joints.
PDTB143XQAZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Transistor Type:
- -
- Current - Collector (Ic) (Max):
- -
- Voltage - Collector Emitter Breakdown (Max):
- -
- Resistor - Base (R1):
- -
- Resistor - Emitter Base (R2):
- -
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- -
- Vce Saturation (Max) @ Ib, Ic:
- -
- Current - Collector Cutoff (Max):
- -
- Frequency - Transition:
- -
- Power - Max:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
PDTB143XQAZ FAQ
1.How can I place an order for PDTB143XQAZ through Aetrix?
Please submit a Request for Quotation (RFQ) for PDTB143XQAZ 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 PDTB143XQAZ reliable?
The price and inventory of PDTB143XQAZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDTB143XQAZ is usually 5 days.
3.What payment methods are accepted for PDTB143XQAZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDTB143XQAZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDTB143XQAZ?
PDTB143XQAZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDTB143XQAZ 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 PDTB143XQAZ?
For technical support, including PDTB143XQAZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDTB143XQAZ requirements.
6.How does Aetrix verify that PDTB143XQAZ is sourced from the original manufacturer or authorized distributors?
All PDTB143XQAZ 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 PDTB143XQAZ meets industry standards.
7.What is the process for return or replacement of PDTB143XQAZ?
All PDTB143XQAZ units undergo pre-shipment inspection (PSI). If there is an issue with PDTB143XQAZ, 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 PDTB143XQAZ part is unused and in its original packaging.
Return procedure for PDTB143XQAZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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