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NXP Semiconductors PDTA143ZEF,115
- Part No.:
- PDTA143ZEF,115
- Manufacturer:
- NXP Semiconductors
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- SC-89, SOT-490
- Datasheet:
-
PDTA143ZEF,115.pdf
- Description:
- TRANS PREBIAS PNP 50V 0.1A SC89
- Quantity:
- Payment:
- Shipping:
Inventory:5,506
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Product details
Overview
PDTA143ZEF,115 from NXP Semiconductors is a PNP resistor-equipped transistor with integrated bias resistors R1 = 4.7 kΩ and R2 = 47 kΩ, designed for general-purpose switching in compact surface-mount applications. It features VCEO = −50 V, IO = −100 mA DC output current, and operates in SOT490 (SC-89) package with 1.7 mm × 0.95 mm footprint - used in level-shifting interface circuits and low-power inverters.
For engineers reviewing the PDTA143ZEF,115 datasheet, PDTA143ZEF,115 pinout, PDTA143ZEF,115 application, or PDTA143ZEF,115 equivalent, key selection factors include its built-in resistor ratio (R2/R1 ≈ 10), guaranteed Vi(on) ≤ −0.9 V at IC = −5 mA, thermal resistance Rth j-a = 500 K/W, and compatibility with reflow-only soldering per JEDEC J-STD-020.
Technical Context
This device integrates two precision thin-film resistors (R1 between base and input, R2 between base and emitter) to form a single-transistor digital switch with defined turn-on/off thresholds. Its PNP topology enables active-low control logic interfacing directly with 3.3 V or 5 V microcontroller GPIOs without external bias components.
The SOT490 package supports high-density PCB layouts and delivers 250 mW total power dissipation at Tamb ≤ 25 °C. Electrical behavior is characterized at Tamb = 25 °C with validated hFE ≥ 100 at VCE = −5 V and IC = −10 mA, and VCEsat ≤ −100 mV under IC = −5 mA / IB = −0.25 mA conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | −50 V - maximum safe collector-emitter voltage before breakdown in open-base configuration |
| IO (DC) | −100 mA - continuous output current capability defining load-driving capacity |
| R1 | 4.7 kΩ ±26% - input bias resistor setting base current sensitivity and noise immunity |
| R2 | 47 kΩ ±26% - feedback resistor stabilizing operating point and enabling predictable saturation |
| Vi(on) | −1.3 V to −0.9 V - input voltage range guaranteeing reliable turn-on at IC = −5 mA |
| VCEsat | ≤ −100 mV - low saturation voltage minimizing power loss during conduction |
| Rth j-a | 500 K/W - junction-to-ambient thermal resistance under free-air conditions in SOT490 |
Pinout & Package
SOT490 (SC-89) is a 3-lead plastic surface-mounted package measuring 1.7 mm × 0.95 mm × 0.5 mm, optimized for automated placement and reflow soldering only.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Base | Input node connected internally to R1 and R2; accepts logic-level control signal |
| 2 | Emitter | Common reference terminal for PNP current sourcing; tied to higher potential rail |
| 3 | Collector | Output node delivering switched current to load; polarity inverted relative to input |
Key Features
| Feature | Design Value |
|---|---|
| Built-in R1/R2 bias network | Eliminates 2 external resistors, reducing BOM count and PCB area in GPIO-driven switches |
| Guaranteed resistor ratio (R2/R1) | 8–12 - ensures consistent switching threshold across production lots without trimming |
| Low VCEsat (≤ −100 mV) | Reduces conduction loss in battery-powered or thermally constrained designs |
| Reflow-soldering only | Complies with JEDEC J-STD-020 moisture sensitivity level (MSL) requirements for SOT490 |
Applications
| Logic-Level Interface Driver | Microcontroller GPIO Expander |
|---|---|
Use Scenario: Driving 5 V relay coils or LED arrays from 3.3 V MCU outputs where level translation and current gain are required. IC Role / Device Role / Timing Role: PNP digital switch providing active-low output inversion and 100 mA sourcing capability. Use Value: Eliminates need for discrete base resistors and reduces layout complexity while maintaining <100 mV saturation drop. | Use Scenario: Adding extra low-side or high-side switch channels to resource-constrained embedded controllers. IC Role / Device Role / Timing Role: Standalone digital output buffer with built-in biasing, compatible with standard 0/3.3 V logic levels. Use Value: Enables rapid prototyping of I/O expansion without calculating or placing external bias components. |
| Low-Power Inverter Circuit | Power Supply Enable Switch |
Use Scenario: Implementing compact inverters in portable audio amplifiers or sensor signal conditioning stages. IC Role / Device Role / Timing Role: Single-transistor inverter stage with fixed gain and predictable propagation delay. Use Value: Delivers clean logic inversion with hFE ≥ 100 and fast turn-off due to R2-assisted base discharge. | Use Scenario: Enabling/disabling auxiliary rails (e.g., 3.3 V LDO output) using MCU-controlled enable signals. IC Role / Device Role / Timing Role: High-side enable switch controlling power path to downstream circuitry. Use Value: Provides robust 50 V blocking capability and −100 mA drive strength with no external components. |
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 |
|---|---|---|---|
| PDTC143ZEF,115 | NPN complement with identical R1/R2 values and SOT490 package | Requires inverted logic drive and sinks current instead of sourcing | Select when circuit requires low-side switching or compatibility with existing NPN-based schematics |
| PDTA143ZK,115 | SOT346 (SC-59) package; same electrical specs but larger 2.7 mm × 1.7 mm footprint and 500 K/W Rth j-a | Better thermal performance margin but occupies ~3× more board area than SOT490 | Choose when manual rework or legacy footprint compatibility is prioritized over miniaturization |
Compared with PDTC143ZEF,115 and PDTA143ZK,115, the PDTA143ZEF,115 uniquely combines ultra-compact SOT490 packaging with verified −100 mA sourcing and −50 V blocking - making it optimal for space-constrained, high-density PNP switching where reflow-only assembly is acceptable.
Availability
PDTA143ZEF,115 is available at Aetrix Electronics and suitable for logic-level interface drivers, microcontroller GPIO expanders, and low-power inverter circuits requiring stable component supply across industrial and consumer electronics programs.
Supply support for PDTA143ZEF,115 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
NXP Semiconductors is a global semiconductor company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and IoT applications.
The PDTA143Z series belongs to NXP's resistor-equipped transistor product line, engineered to simplify digital switching designs by integrating precision bias networks into miniature surface-mount packages for cost-sensitive, high-volume applications.
FAQ
What is the pin configuration of PDTA143ZEF,115?
The PDTA143ZEF,115 uses a 3-pin SOT490 (SC-89) package with pin 1 as Base, pin 2 as Emitter, and pin 3 as Collector. This arrangement is confirmed in the "Simplified outline, symbol and pinning" section of the official NXP datasheet dated 2004 Aug 05, and matches the top-view marking orientation for SC-89 devices.
Does PDTA143ZEF,115 support through-hole mounting?
No, PDTA143ZEF,115 is exclusively a surface-mount device in SOT490 (SC-89) package and does not support through-hole mounting. The datasheet explicitly states "reflow soldering is the only recommended soldering method" and provides no lead-forming or axial/TO-92 variants for this specific type number.
What is the maximum operating temperature for PDTA143ZEF,115?
The PDTA143ZEF,115 has a maximum junction temperature (Tj) of +150 °C and an operating ambient temperature range of −65 °C to +150 °C. These limiting values are specified in the "Limiting Values" table of the NXP datasheet and apply under standard mounting conditions with reflow soldering.
Can PDTA143ZEF,115 replace a standard PNP BJT like BC807?
The PDTA143ZEF,115 is not a direct replacement for discrete BJTs such as BC807 because it integrates bias resistors R1 and R2, altering input impedance and switching thresholds. While both are PNP transistors, the PDTA143ZEF,115 requires no external base resistors and exhibits different Vi(on)/Vi(off) behavior - redesign is needed for substitution.
What is the tolerance on the internal resistors R1 and R2 in PDTA143ZEF,115?
The R1 and R2 values in PDTA143ZEF,115 are specified as 4.7 kΩ and 47 kΩ respectively, with tolerances derived from the "MIN/TYP/MAX" column in the "Characteristics" table: R1 = 3.3 kΩ (min) to 6.1 kΩ (max), indicating ±26% tolerance. R2 is not individually tolerance-banded but shares the same process-controlled ratio stability.
PDTA143ZEF,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- SC-89, SOT-490
- 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):
- 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):
- 1µA
- Frequency - Transition:
- -
- Power - Max:
- 250 mW
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-89
PDTA143ZEF,115 FAQ
1.How can I place an order for PDTA143ZEF,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for PDTA143ZEF,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 PDTA143ZEF,115 reliable?
The price and inventory of PDTA143ZEF,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDTA143ZEF,115 is usually 5 days.
3.What payment methods are accepted for PDTA143ZEF,115?
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PDTA143ZEF,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDTA143ZEF,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 PDTA143ZEF,115?
For technical support, including PDTA143ZEF,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDTA143ZEF,115 requirements.
6.How does Aetrix verify that PDTA143ZEF,115 is sourced from the original manufacturer or authorized distributors?
All PDTA143ZEF,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 PDTA143ZEF,115 meets industry standards.
7.What is the process for return or replacement of PDTA143ZEF,115?
All PDTA143ZEF,115 units undergo pre-shipment inspection (PSI). If there is an issue with PDTA143ZEF,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 PDTA143ZEF,115 part is unused and in its original packaging.
Return procedure for PDTA143ZEF,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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