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Nexperia USA Inc. PDTA143ZU,115
- Part No.:
- PDTA143ZU,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- SC-70, SOT-323
- Datasheet:
-
PDTA143ZU,115.pdf
- Description:
- TRANS PREBIAS PNP 50V SOT323
- Quantity:
- Payment:
- Shipping:
Inventory:264
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Product details
Overview
PDTA143ZU from Nexperia is a PNP resistor-equipped transistor (RET) in SOT323 (SC-70) package, rated for −50 V VCEO, −100 mA IO, with integrated R1 = 4.7 kΩ and R2/R1 = 10 bias resistors. It functions as a digitally controlled switch in automotive and industrial logic interfaces, replacing discrete base-resistor configurations for IC input control and load switching.
For engineers reviewing the PDTA143ZU datasheet, PDTA143ZU pinout, PDTA143ZU application, or PDTA143ZU equivalent, this device offers AEC-Q101 qualification, verified thermal resistance (Rth(j-a) = 625 K/W), and confirmed off-state input voltage (VI(off) = −0.6 V) - critical for robust digital switching in temperature-variable environments.
Technical Context
The PDTA143ZU integrates a PNP bipolar transistor with two precision on-die resistors: R1 (4.7 kΩ) connected between input and base, and R2 (47 kΩ) from base to emitter, forming a fixed-current bias network. This eliminates external bias components and ensures predictable turn-on/turn-off behavior under varying supply conditions.
Its −50 V collector-emitter breakdown voltage and −100 mA output current capability support operation in 24 V automotive subsystems and industrial 24/36 V control rails. The device exhibits VCE(sat) ≤ −100 mV at IC = −5 mA / IB = −0.25 mA, enabling low-loss switching with minimal power dissipation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | −50 V: Maximum safe collector-emitter voltage before breakdown; enables use in 24 V automotive systems with margin. |
| IO | −100 mA: Continuous output current rating; sufficient for driving LED indicators, small relays, or logic inputs. |
| R1 | 4.7 kΩ ±28%: Input bias resistor value; sets base current for predictable switching thresholds at 3.3 V/5 V logic levels. |
| R2/R1 | 10 ±20%: Fixed feedback ratio; stabilizes operating point against transistor hFE variation across temperature and process. |
| VCE(sat) | ≤ −100 mV at IC = −5 mA: Low saturation voltage minimizes power loss and self-heating during active conduction. |
| VI(off) | −0.6 V typical: Confirmed input voltage threshold below which device remains fully off; prevents false triggering in noisy environments. |
| Ptot | 200 mW at Tamb ≤ 25 °C: Total power dissipation limit; defines maximum continuous switching duty in standard FR4 PCB layout. |
Pinout & Package
Package: SOT323 (SC-70), surface-mount plastic package measuring 2.0 mm × 1.25 mm × 0.95 mm with 1.3 mm lead pitch. Designed for reflow soldering per IPC-J-STD-020D.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Input (base node) | Connected internally to R1; accepts logic-level drive signal; requires no external pull-up/down. |
| 2 | Ground (emitter) | Common reference terminal; ties to system ground; serves as return path for R2 and emitter current. |
| 3 | Output (collector) | Switched high-side output node; sinks current when active; connects to load between VCC and pin 3. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Qualified for automotive applications per stress test standard; supports deployment in engine control, body electronics, and ADAS modules. |
| Integrated R1/R2 network | Eliminates 2 external resistors; reduces BOM count, PCB area, and assembly cost without compromising bias stability. |
| Low VCE(sat) | ≤ −100 mV ensures <1 mW conduction loss at 10 mA load, improving efficiency in battery-powered and thermally constrained designs. |
| Wide ambient range | Operates from −65 °C to +150 °C; maintains functionality in under-hood automotive and industrial outdoor enclosures. |
| Standard SC-70 footprint | Compatible with existing pick-and-place equipment and reflow profiles; enables drop-in replacement of BC857-family transistors. |
Applications
| Automotive Body Control Module | Industrial PLC Digital Input Stage |
|---|---|
|
Use Scenario: Level-shifting and noise-immune signal conditioning for door lock actuator status feedback. IC Role / Device Role / Timing Role: PNP RET acts as a high-side interface switch converting 12 V sensor signals to 3.3 V microcontroller GPIO inputs. Use Value: Built-in R2/R1 ratio ensures stable logic threshold across −40 °C to +125 °C, eliminating calibration drift. |
Use Scenario: Isolating field-device dry-contact closures into 24 V PLC input cards. IC Role / Device Role / Timing Role: Functions as a fail-safe input buffer with defined off-state leakage (<1 µA ICEO) and fast turn-off. Use Value: VI(off) = −0.6 V guarantees immunity to common-mode noise up to ±2 V on long cable runs. |
| LED Indicator Driver | Microcontroller GPIO Expander Interface |
|
Use Scenario: Driving multi-color status LEDs in dashboard instrumentation clusters. IC Role / Device Role / Timing Role: Acts as a current-sinking switch controlled directly by MCU GPIO pins. Use Value: −100 mA IO rating supports parallel LED strings without external current-limiting resistors. |
Use Scenario: Enabling legacy 5 V logic peripherals on 3.3 V microcontrollers via level translation. IC Role / Device Role / Timing Role: Provides active pull-down for open-drain bus lines and reset signaling. Use Value: VCE(sat) ≤ −100 mV ensures <0.1 V residual voltage on pulled-down lines, meeting I²C and SMBus low-level specs. |
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 |
|---|---|---|---|
| BC857B,115 | Discrete PNP transistor without built-in resistors; requires external RB and RBE for biasing. | Higher component count and layout sensitivity; lacks AEC-Q101 qualification. | Select only if custom bias tuning or higher hFE (>200) is required beyond RET's fixed gain profile. |
| PDTA123ZU,115 | Same SOT323 package but with R1 = 2.2 kΩ and R2/R1 = 10; lower input impedance and faster switching. | Better suited for 1.8 V/2.5 V logic interfaces; higher input current draw may increase MCU drive burden. | Choose when interfacing with low-voltage MCUs where PDTA143ZU's 4.7 kΩ R1 yields insufficient base drive. |
Compared with BC857B,115, PDTA143ZU reduces bill-of-materials and improves production yield; versus PDTA123ZU, it trades lower input current for improved noise margin in 5 V systems - making it optimal for cost-sensitive, AEC-Q101-compliant 24 V digital interfaces.
Availability
PDTA143ZU is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC input stages, LED indicator drivers, and microcontroller GPIO expander interfaces requiring stable component supply and AEC-Q101 compliance.
Supply support for PDTA143ZU 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 high-volume, high-reliability discrete and logic devices, with leadership in automotive-qualified components and energy-efficient solutions.
The PDTA143ZU belongs to Nexperia's Resistor-Equipped Transistor (RET) product line, designed specifically to simplify digital interface design in automotive and industrial control systems while meeting stringent AEC-Q101 reliability requirements.
FAQ
Is PDTA143ZU suitable for 24 V automotive power domains?
Yes. With −50 V VCEO, −5 V VEBO, and AEC-Q101 qualification, PDTA143ZU supports 24 V nominal systems including load-dump transients up to ISO 7637-2 Pulse 5a (−120 V). Its −100 mA IO rating and 200 mW Ptot allow direct switching of solenoids, relays, and LEDs without additional protection circuitry in most body-control applications.
What is the maximum ambient temperature for continuous operation at full rated current?
At IO = −100 mA, junction temperature must remain ≤150 °C. With Rth(j-a) = 625 K/W and Ptot = IC × |VCE(sat)| ≈ 10 mW (at −100 mV), ambient temperature can reach +145 °C before exceeding Tj limit. Derating begins above +25 °C per Figure 1, reaching zero derated current at +150 °C ambient.
Can PDTA143ZU replace BC857 in existing designs without layout changes?
Yes - both use identical SOT323 (SC-70) package and pinout (Emitter-Ground, Collector-Output, Base-Input). However, PDTA143ZU's integrated R1/R2 means external base resistors must be removed. No copper layer modification is needed, but schematic updates are required to eliminate redundant bias components.
Does PDTA143ZU support bidirectional signal translation?
No. As a PNP RET, PDTA143ZU operates unidirectionally as a high-side switch or level translator from higher to lower voltage domains (e.g., 12 V → 3.3 V). It cannot pass signals from emitter to collector or function as a bidirectional bus buffer; dedicated level translators like NXH010P120MNF1 are required for that function.
PDTA143ZU,115 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):
- 4.7 kOhms
- Resistor - Emitter Base (R2):
- 47 kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 100 @ 10mA, 5V
- Vce Saturation (Max) @ Ib, Ic:
- 100mV @ 250µA, 5mA
- Current - Collector Cutoff (Max):
- 100nA (ICBO)
- Frequency - Transition:
- -
- Power - Max:
- 200 mW
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-323
PDTA143ZU,115 FAQ
1.How can I place an order for PDTA143ZU,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for PDTA143ZU,115 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 PDTA143ZU,115 reliable?
The price and inventory of PDTA143ZU,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDTA143ZU,115 is usually 5 days.
3.What payment methods are accepted for PDTA143ZU,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDTA143ZU,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDTA143ZU,115?
PDTA143ZU,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDTA143ZU,115 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 PDTA143ZU,115?
For technical support, including PDTA143ZU,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDTA143ZU,115 requirements.
6.How does Aetrix verify that PDTA143ZU,115 is sourced from the original manufacturer or authorized distributors?
All PDTA143ZU,115 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 PDTA143ZU,115 meets industry standards.
7.What is the process for return or replacement of PDTA143ZU,115?
All PDTA143ZU,115 units undergo pre-shipment inspection (PSI). If there is an issue with PDTA143ZU,115, 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 PDTA143ZU,115 part is unused and in its original packaging.
Return procedure for PDTA143ZU,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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