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Nexperia USA Inc. PDTA144EQCZ
- Part No.:
- PDTA144EQCZ
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- 3-XDFN Exposed Pad
- Datasheet:
-
PDTA144EQCZ.pdf
- Description:
- TRANS PREBIAS PNP 50V 0.1A 3DFN
- Quantity:
- Payment:
- Shipping:
Inventory:5,000
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Product details
Overview
PDTA144EQC from Nexperia is a 50 V, 100 mA PNP resistor-equipped transistor (RET) in a DFN1412D-3 (SOT8009) leadless package with side-wettable flanks. It integrates R1 = 47 kΩ and R2 = 47 kΩ bias resistors, delivers hFE ≥ 80 at IC = −5 mA, achieves VCEsat ≤ −100 mV at IC = −10 mA/IB = −0.5 mA, and supports −40 V to +10 V input voltage range - used for digital load switching and IC input control in space-constrained consumer and industrial PCBs.
For engineers reviewing the PDTA144EQC datasheet, PDTA144EQC pinout, PDTA144EQC application, or PDTA144EQC equivalent, this page provides verified pin functions, real-world switching performance metrics, AOI-compatible solder joint validation, and direct alternatives for BC857-based digital logic interface designs.
Technical Context
This PNP RET integrates two precision-matched on-chip resistors (R1 = R2 = 47 kΩ) to form a fixed-base-bias network, eliminating external components for saturated switching. Its internal transistor exhibits V(BR)CEO = −50 V, ICEO ≤ −5 µA at Tj = 150 °C, and fT = 180 MHz - enabling reliable DC and low-frequency digital signal inversion up to 100 mA sink capability.
The DFN1412D-3 package features side-wettable flanks for automated optical inspection of solder joints, 0.5 mm profile height, and thermal resistance Rth(j-a) = 278 K/W on 70 µm FR4 copper - supporting high-density routing and thermal management in compact power management and I/O buffer circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | −50 V: Maximum collector-emitter voltage before breakdown; enables use in 36 V rail systems with margin. |
| IO | −100 mA: Continuous DC output current capability; sufficient for driving LEDs, relays, or logic inputs. |
| hFE | ≥ 80 at IC = −5 mA: Ensures stable saturation with low base drive - reduces MCU GPIO current burden. |
| VCEsat | ≤ −100 mV at IC = −10 mA / IB = −0.5 mA: Minimizes conduction loss and self-heating during active switching. |
| R1 / R2 | 47 kΩ / 47 kΩ: Matched integrated bias resistors eliminate two external components and layout area. |
| VI(on) | −3.0 V to −1.6 V at IC = −2 mA: Defines guaranteed turn-on threshold for TTL/CMOS-compatible digital control. |
| VI(off) | −1.2 V to −0.8 V at IC = −100 µA: Ensures robust off-state immunity against noise or leakage-induced false triggering. |
Pinout & Package
DFN1412D-3 (SOT8009) is a 3-terminal, ultra-small leadless plastic package measuring 1.4 × 1.2 × 0.48 mm with side-wettable flanks for AOI-compliant reflow soldering.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Input (base) | Internal connection to R1–R2 node; accepts digital control voltage to enable transistor conduction. |
| 2 | GND (emitter) | Emitter tied to system ground; serves as common return path for load current and bias network. |
| 3 | Output (collector) | Sinks up to 100 mA from connected load to ground; electrically isolated from PCB ground plane via package body. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated bias network | Matched R1 = R2 = 47 kΩ resistors reduce BOM count by two passive components and eliminate matching tolerance risk. |
| AOI-compatible package | Side-wettable flanks on DFN1412D-3 enable automated optical inspection of solder joints without X-ray. |
| Low-profile mounting | 0.48 mm max body height supports ultra-thin device designs and prevents mechanical interference under shields. |
| Thermal derating support | 278 K/W Rth(j-a) on 70 µm FR4 allows sustained 100 mA operation up to +85 °C ambient with standard layout. |
Applications
| LED Driver Circuit | Digital Input Buffer |
|---|---|
Use Scenario: Driving a 20 mA indicator LED from a 3.3 V microcontroller GPIO pin in a battery-powered IoT sensor node. IC Role / Device Role: PNP switch sinking LED anode current to ground while isolating MCU from load transients. Use Value: Eliminates need for external base resistor and pull-down; VI(on) ≤ −1.6 V ensures full turn-on with 3.3 V logic swing. | Use Scenario: Conditioning noisy 5 V industrial sensor signals before feeding into a 3.3 V ADC input. IC Role / Device Role: Level-shifting and noise-filtering digital buffer using RET's built-in hysteresis-like VI(on)/VI(off) separation. Use Value: 0.4 V input threshold window (−1.2 V to −0.8 V off, −3.0 V to −1.6 V on) rejects ±0.2 V supply ripple and EMI. |
| Relay Coil Driver | Logic-Level Translator |
Use Scenario: Switching a 12 V, 40 mA relay coil in an automotive body control module with limited PCB space. IC Role / Device Role: High-side switch replacement operating in emitter-follower configuration with grounded emitter. Use Value: −50 V VCEO rating provides 2× safety margin over 12 V rail; 100 mA IO handles relay inrush without derating. | Use Scenario: Interfacing 5 V legacy logic outputs to 1.8 V FPGA I/O banks requiring negative-voltage compatible input stages. IC Role / Device Role: Active-low translator converting TTL-compatible signals to sub-2 V logic thresholds. Use Value: VI(on) down to −3.0 V guarantees activation even with degraded 5 V supply; R1/R2 ratio maintains consistent gain across temperature. |
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 |
|---|---|---|---|
| PDTC144EQC | NPN complement with identical R1/R2 = 47 kΩ, same SOT8009 package, but opposite polarity and +50 V VCEO. | Used where sourcing (not sinking) current is required - e.g., high-side load switching with positive rail reference. | Select when circuit topology requires NPN behavior or compatibility with existing NPN-based board layouts. |
| BC857B | Discrete PNP BJT without integrated resistors; requires external base resistor; TO-236 (SOT23) package. | Offers higher hFE (200–450) and lower VCEsat (−65 mV), but increases component count and layout complexity. | Choose when maximum current gain or minimal saturation voltage is critical, and board space permits discrete biasing. |
Compared with PDTC144EQC, PDTA144EQC provides complementary polarity for sink-switching topologies; compared with BC857B, it trades marginal VCEsat improvement for significant BOM reduction, layout simplification, and AOI-ready packaging - making it optimal for cost-sensitive, high-volume digital interface applications.
Availability
PDTA144EQC is available at Aetrix Electronics and suitable for LED driver circuits, digital input buffers, relay coil drivers, and logic-level translators requiring stable component supply and long-term manufacturability.
Supply support for PDTA144EQC 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 leading global semiconductor expert focused on essential semiconductors for power management, logic, and analog applications - delivering high-reliability, high-volume discrete and logic solutions.
The PDTA144EQC belongs to Nexperia's resistor-equipped transistor (RET) product line, engineered specifically to replace discrete BJT + resistor combinations in digital switching and interface circuits - prioritizing miniaturization, assembly efficiency, and AOI process compatibility.
FAQ
What is the maximum continuous current the PDTA144EQC can switch?
The PDTA144EQC is rated for −100 mA continuous output current (IO) under standard FR4 PCB conditions at Tamb ≤ 25 °C. Derating applies above 25 °C per Fig. 1: at 85 °C ambient, maximum sustainable current drops to approximately −65 mA with 70 µm copper, ensuring safe junction temperature below 150 °C.
Does the PDTA144EQC require an external base resistor?
No - the PDTA144EQC integrates both R1 and R2 bias resistors (47 kΩ each) internally. This eliminates the need for any external base resistor, reducing component count, PCB footprint, and assembly steps while guaranteeing resistor matching and temperature tracking between R1 and R2.
Can PDTA144EQC be used in place of BC857 series transistors?
Yes - Nexperia explicitly positions the PDTA144EQC as a cost-saving alternative to BC857-series PNP transistors in digital applications. It matches BC857B's VCEO (−50 V), exceeds its minimum hFE (80 vs. 200–450), and adds integrated biasing, though with slightly higher VCEsat (−100 mV vs. −65 mV). Layout adaptation is required due to SOT8009 vs. SOT23 footprint.
Is the DFN1412D-3 package compatible with standard reflow soldering processes?
Yes - the DFN1412D-3 (SOT8009) package is qualified for standard lead-free reflow profiles. Figure 31 provides recommended stencil and land pattern dimensions, including 0.1 mm stencil thickness and side-wettable flank geometry that supports automated optical inspection of solder fillets without requiring X-ray verification.
PDTA144EQCZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- 3-XDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Transistor Type:
- PNP - Pre-Biased
- Current - Collector (Ic) (Max):
- 100 mA
- Voltage - Collector Emitter Breakdown (Max):
- 50 V
- Resistor - Base (R1):
- 47 kOhms
- Resistor - Emitter Base (R2):
- 47 kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 80 @ 5mA, 5V
- Vce Saturation (Max) @ Ib, Ic:
- 100mV @ 500µA, 10mA
- Current - Collector Cutoff (Max):
- 100nA
- Frequency - Transition:
- 180 MHz
- Power - Max:
- 360 mW
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- DFN1412D-3
PDTA144EQCZ FAQ
1.How can I place an order for PDTA144EQCZ through Aetrix?
Please submit a Request for Quotation (RFQ) for PDTA144EQCZ 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 PDTA144EQCZ reliable?
The price and inventory of PDTA144EQCZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDTA144EQCZ is usually 5 days.
3.What payment methods are accepted for PDTA144EQCZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDTA144EQCZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDTA144EQCZ?
PDTA144EQCZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDTA144EQCZ 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 PDTA144EQCZ?
For technical support, including PDTA144EQCZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDTA144EQCZ requirements.
6.How does Aetrix verify that PDTA144EQCZ is sourced from the original manufacturer or authorized distributors?
All PDTA144EQCZ 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 PDTA144EQCZ meets industry standards.
7.What is the process for return or replacement of PDTA144EQCZ?
All PDTA144EQCZ units undergo pre-shipment inspection (PSI). If there is an issue with PDTA144EQCZ, 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 PDTA144EQCZ part is unused and in its original packaging.
Return procedure for PDTA144EQCZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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