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NXP Semiconductors PDTC143ZE,115
- Part No.:
- PDTC143ZE,115
- Manufacturer:
- NXP Semiconductors
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- SC-75, SOT-416
- Datasheet:
-
PDTC143ZE,115.pdf
- Description:
- TRANS PREBIAS NPN 50V 0.1A SC75
- Quantity:
- Payment:
- Shipping:
Inventory:8,339
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Product details
Overview
PDTC143ZE from Nexperia is an NPN resistor-equipped transistor (RET) in SOT416 (SC-75) package, designed for digital switching applications with built-in bias resistors R1 = 4.7 kΩ and R2 = 47 kΩ, 50 V VCEO, 100 mA IO, and AEC-Q101 qualification for automotive use.
For engineers reviewing the PDTC143ZE datasheet, PDTC143ZE pinout, PDTC143ZE application, or PDTC143ZE equivalent, this device serves as a space- and cost-optimized alternative to discrete BJT + resistor networks in IC input control and load switching circuits where simplified layout and reduced component count are critical.
Technical Context
The PDTC143ZE integrates an NPN transistor with two monolithic silicon resistors-R1 connected between base and input, R2 between base and emitter-enabling single-pin digital drive without external biasing. Its 3-pin SOT416 configuration supports direct logic-level interfacing.
It operates with VI(on) = 0.9–1.3 V at IC = 5 mA and VI(off) = 0.5–0.6 V at IC = 100 µA, ensuring robust noise immunity and predictable turn-on/turn-off thresholds in 3.3 V and 5 V systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 50 V maximum collector-emitter voltage - supports operation in 24 V automotive and industrial supply rails with margin. |
| IO | 100 mA continuous output current - drives small relays, LEDs, or logic inputs without external current amplification. |
| R1 | 4.7 kΩ ±28% (3.3–6.1 kΩ) - sets base current for predictable saturation with standard CMOS/TTL logic outputs. |
| R2/R1 ratio | 10 ±20% (8–12) - ensures stable β-independent switching behavior and reduces sensitivity to transistor hFE variation. |
| VCE(sat) | ≤100 mV at IC = 5 mA, IB = 0.25 mA - minimizes power loss and self-heating during sustained on-state operation. |
| Tj max | 150 °C junction temperature - enables reliable operation in under-hood automotive environments and sealed industrial enclosures. |
| Ptot | 150 mW at Tamb ≤25 °C - defines thermal derating envelope for PCB layout in compact SMT designs. |
Pinout & Package
SOT416 (SC-75) ultra-small surface-mount plastic package: 1.8 mm × 0.95 mm × 0.7 mm body, 3-lead, tin-plated terminations, optimized for reflow soldering only.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | input (base) | Logic signal entry point; internally connected to R1 and R2 network - accepts 0–30 V positive drive, -5 V negative transient tolerance. |
| 2 | GND (emitter) | Emitter reference node; must be tied to system ground or low-side return path - forms common reference for input and output loops. |
| 3 | output (collector) | Switched high-side load connection; sinks up to 100 mA when pin 1 is driven high - used for driving LEDs, small solenoids, or logic gate inputs. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated R1 + R2 bias network | Eliminates need for two external resistors, reducing BOM count and PCB area by ≥3 components per switch node. |
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing - suitable for engine control, body electronics, and ADAS subsystems. |
| Ultra-small SOT416 footprint | 0.95 mm × 1.8 mm outline enables placement in dense routing zones where SOT23 or SOT323 would cause congestion or thermal coupling. |
| 100 mA IO capability | Supports direct drive of common indicator LEDs (20 mA), optocoupler inputs (10–15 mA), and microcontroller GPIO expansion without buffer stages. |
| VI(on)/VI(off) thresholds | 0.9–1.3 V turn-on and 0.5–0.6 V turn-off voltages provide >300 mV noise margin in noisy 3.3 V systems, preventing false triggering. |
Applications
| Automotive Body Control Module | Industrial PLC Input Conditioning |
|---|---|
Use Scenario: Level-shifting and debouncing signals from mechanical switches (door latch, trunk release) before feeding into MCU GPIOs. IC Role / Device Role / Timing Role: Digital input buffer and ESD-protected switch interface with integrated pull-down. Use Value: Replaces discrete BJT + 2-resistor solution, cutting board space by 40% and eliminating manual resistor placement error risk. |
Use Scenario: Converting 24 V DC field sensor outputs to 3.3 V logic-compatible levels for ARM-based controller inputs. IC Role / Device Role / Timing Role: Voltage translator and current-limited interface with defined off-state leakage (<1 µA). Use Value: Enables direct connection without external Zener clamping or series resistor calculation - simplifies certification for IEC 61000-4-2/4-4 compliance. |
| Consumer Appliance Power Sequencing | Medical Diagnostic Equipment LED Indicators |
Use Scenario: Enabling/disabling auxiliary power rails (e.g., display backlight, fan control) based on main processor wake/sleep state. IC Role / Device Role / Timing Role: Low-power enable switch with fast turn-on (<100 ns) and minimal quiescent current (ICEO < 1 µA). Use Value: Reduces standby power by eliminating always-on pull-up networks while maintaining deterministic startup timing. |
Use Scenario: Driving status LEDs on patient monitor front panels requiring consistent brightness across 0–50 °C ambient range. IC Role / Device Role / Timing Role: Constant-current switch with thermally stable VCE(sat) and hFE-independent gain. Use Value: Maintains LED luminance uniformity without calibration - avoids brightness drift caused by discrete BJT hFE spread over temperature. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NPN resistor-equipped transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PDTC143ZU | SOT323 (SC-70) package; 2.2 mm × 1.35 mm body; Ptot = 200 mW; Rth(j-a) = 625 K/W. | Higher power dissipation margin and larger pad area - preferred for higher-duty-cycle or thermally constrained layouts. | Select PDTC143ZU when thermal performance or hand-soldering feasibility outweighs ultra-compact size requirements. |
| BC847B,115 | Standard NPN BJT (no built-in resistors); requires external RB and RBE; hFE = 200–450; VCE(sat) = 0.14 V @ 10 mA. | Greater design flexibility but increases component count and layout complexity - not AEC-Q101 qualified. | Choose BC847B,115 only when precise bias tuning or multi-stage amplification is required beyond simple switching. |
Compared with PDTC143ZU, the PDTC143ZE offers 25% smaller footprint and tighter thermal resistance control in high-density modules; compared with BC847B,115, it eliminates two passives and provides guaranteed switching thresholds, though at the cost of fixed bias ratio and lower max power handling.
Availability
PDTC143ZE is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC I/O modules, and medical device indicator circuits requiring stable component supply and long-term lifecycle support.
Supply support for PDTC143ZE 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 essential semiconductors for automotive, industrial, and consumer markets.
The PDTC143ZE belongs to Nexperia's resistor-equipped transistor (RET) family, engineered specifically to replace discrete BJT + resistor combinations in digital switching applications where miniaturization, AEC-Q101 compliance, and manufacturing simplicity are primary design goals.
FAQ
What is the maximum operating voltage for PDTC143ZE?
The PDTC143ZE has a maximum collector-emitter voltage (VCEO) of 50 V and a maximum collector-base voltage (VCBO) of 50 V, both specified with open-base and open-emitter conditions respectively. These ratings allow safe operation in 24 V automotive and industrial control systems with sufficient safety margin. The PDTC143ZE must not be subjected to voltages exceeding these limits to prevent permanent damage.
Does PDTC143ZE require external bias resistors?
No, the PDTC143ZE does not require external bias resistors because it integrates R1 = 4.7 kΩ and R2 = 47 kΩ monolithically. R1 connects the input pin to the base, and R2 connects the base to the emitter, forming a complete bias network. This integration eliminates two external components and ensures consistent switching behavior independent of discrete resistor tolerances or placement errors.
Is PDTC143ZE qualified for automotive applications?
Yes, the PDTC143ZE is AEC-Q101 qualified, having passed stress tests including high-temperature reverse bias, temperature cycling, and ESD per JESD22 standards. This qualification confirms its suitability for automotive body electronics, infotainment interfaces, and ADAS subsystems where reliability under extended temperature ranges (-65 °C to +150 °C) and vibration is mandatory.
What is the thermal resistance of PDTC143ZE in free air?
The PDTC143ZE has a thermal resistance from junction to ambient (Rth(j-a)) of 830 K/W in free air, measured on an FR4 PCB with single-sided copper and standard footprint. This value defines the worst-case thermal performance and must be used for initial junction temperature estimation: Tj = Tamb + (Pdiss × 830). Derating curves in the datasheet show allowable power reduction above 25 °C ambient.
Can PDTC143ZE replace BC847 series transistors directly?
The PDTC143ZE serves as a cost-saving alternative to BC847/857 series in digital switching applications, but it is not a direct pin-to-pin replacement due to different pin functions and integrated biasing. While both are NPN devices in SOT packages, the PDTC143ZE uses Pin 1 as input (base via R1), Pin 2 as emitter (GND), and Pin 3 as collector output - unlike BC847's standard emitter-base-collector pinout. Circuit redesign is required to leverage its built-in resistors.
PDTC143ZE,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- SC-75, SOT-416
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Transistor Type:
- NPN - 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:
- 150 mW
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-75
PDTC143ZE,115 FAQ
1.How can I place an order for PDTC143ZE,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for PDTC143ZE,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 PDTC143ZE,115 reliable?
The price and inventory of PDTC143ZE,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDTC143ZE,115 is usually 5 days.
3.What payment methods are accepted for PDTC143ZE,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDTC143ZE,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDTC143ZE,115?
PDTC143ZE,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDTC143ZE,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 PDTC143ZE,115?
For technical support, including PDTC143ZE,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDTC143ZE,115 requirements.
6.How does Aetrix verify that PDTC143ZE,115 is sourced from the original manufacturer or authorized distributors?
All PDTC143ZE,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 PDTC143ZE,115 meets industry standards.
7.What is the process for return or replacement of PDTC143ZE,115?
All PDTC143ZE,115 units undergo pre-shipment inspection (PSI). If there is an issue with PDTC143ZE,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 PDTC143ZE,115 part is unused and in its original packaging.
Return procedure for PDTC143ZE,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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