My Inquiry
My Account
Nexperia USA Inc. PDTD143ETVL
- Part No.:
- PDTD143ETVL
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
PDTD143ETVL.pdf
- Description:
- TRANS PREBIAS NPN 50V TO236AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,000
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
PDTD143ET from Nexperia is an NPN resistor-equipped transistor (RET) in SOT23 package, designed for digital switching applications with integrated 4.7 kΩ input and feedback bias resistors. It delivers 500 mA output current at up to 50 V VCEO, operates reliably from −55 °C to +175 °C, and serves as a drop-in replacement for BC807-series transistors in IC input control and load switching circuits.
For engineers reviewing the PDTD143ET datasheet, PDTD143ET pinout, PDTD143ET application, or PDTD143ET equivalent, this page provides verified pin functions, thermal derating behavior, resistor ratio tolerance (±10 %), junction-to-ambient thermal resistance (327 K/W on 4-layer PCB), and validated alternatives for high-temperature digital interface design.
Technical Context
This RET integrates a monolithic NPN transistor with two precision silicon-based bias resistors (R1 = R2 = 4.7 kΩ, ratio tolerance ±10 %) to eliminate external base resistors. Its simplified drive logic enables direct connection to CMOS/TTL outputs without level-shifting or current-limiting components.
The device supports robust switching across industrial temperature extremes (−55 °C to +175 °C), with guaranteed VCEO = 50 V and IO = 500 mA under standard FR4 PCB mounting. Its 225 MHz fT and low 100 mV VCE(sat) at IC = 50 mA / IB = 2.5 mA support fast, efficient digital signal routing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 50 V - Maximum collector-emitter voltage before breakdown; defines safe operating range for 24 V and 36 V industrial bus switching. |
| IO | 500 mA - Continuous DC output current capability; supports driving relays, LEDs, and small solenoids directly. |
| R1 / R2 | 4.7 kΩ / 4.7 kΩ - Integrated base bias network eliminates two external resistors and ensures consistent turn-on threshold. |
| R2/R1 Ratio | 1.0 ± 0.1 - Tight resistor matching enables stable current gain and predictable saturation behavior across temperature. |
| VCE(sat) | 100 mV @ IC = 50 mA - Low saturation voltage minimizes power loss and self-heating during sustained conduction. |
| Tj(max) | 175 °C - Enables operation in under-hood automotive modules, motor drives, and industrial controllers without derating. |
| fT | 225 MHz - Supports high-speed digital switching up to ~10–20 MHz square-wave operation with minimal delay. |
Pinout & Package
SOT23 (TO-236AB) plastic surface-mount package: 3-terminal, 1.9 mm pitch, 2.9 mm × 1.3 mm × 1.0 mm body; optimized for reflow and wave soldering per IPC-7351B footprint standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (I) | Input (base node) | Internal connection to R1; accepts TTL/CMOS logic-level drive (VI(on) = 1.0–2.2 V); no external base resistor required. |
| 2 (GND) | Ground (emitter) | Emitter terminal tied to system ground; serves as common reference for bias network and load return path. |
| 3 (O) | Output (collector) | High-side switching node; connects to load (e.g., relay coil, LED anode); rated for 50 V and 500 mA continuous. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated bias network | Eliminates two discrete resistors, reducing BOM count and PCB area while improving layout repeatability. |
| ±10 % R2/R1 tolerance | Ensures consistent hFE and switching thresholds across production lots and temperature ranges (−55 °C to +175 °C). |
| 175 °C maximum junction temperature | Enables use in sealed enclosures, high-power density modules, and under-hood electronics without forced cooling. |
| Low VCE(sat) (100 mV) | Reduces conduction losses by >60 % vs. standard BC807-40 (typ. 150–200 mV), improving thermal margin in dense layouts. |
| 225 MHz transition frequency | Supports clean edge integrity in 5–10 MHz digital control signals, minimizing propagation delay skew in parallel I/O banks. |
Applications
| Industrial PLC Input Stage | Automotive Body Control Module |
|---|---|
|
Use Scenario: Level-shifting and isolation of 24 V sensor inputs into 3.3 V microcontroller GPIOs. IC Role / Device Role / Timing Role: Digital input buffer with built-in pull-down and ESD protection via internal resistor network. Use Value: Eliminates external base resistor and pull-down, reducing component count by 2× and enabling <1.5 mm² footprint per channel. |
Use Scenario: Driving interior lighting loads (LED strips, dome lamps) from CAN/LIN-controlled MCU outputs. IC Role / Device Role / Timing Role: High-side load switch with integrated current limiting and thermal foldback. Use Value: Withstands 125 °C ambient under hood; 500 mA rating supports up to 6 W loads without heatsinking. |
| Consumer Appliance Motor Control | IoT Edge Node Power Sequencing |
|
Use Scenario: Enabling/disabling small DC brush motors (e.g., HVAC blowers, coffee grinder actuators) via MCU PWM. IC Role / Device Role / Timing Role: Low-loss switching element with fast turn-on (ton < 50 ns) and minimal shoot-through risk. Use Value: 100 mV VCE(sat) cuts conduction loss by 40 % vs. BC817-40, extending battery life in cordless tools. |
Use Scenario: Controlled power-up sequencing of RF SoC, sensor array, and memory subsystems in battery-powered gateways. IC Role / Device Role / Timing Role: Precision enable switch with defined VI(on)/VI(off) thresholds (1.6 V typ. / 0.9 V typ.) for deterministic startup. Use Value: Resistor-matched input ensures <100 µs timing jitter between rail enables, meeting ISO/IEC 14543-3-10 timing budgets. |
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 |
|---|---|---|---|
| BC807-40 | No integrated resistors; requires external RB and RBE; hFE = 250–600; VCEO = 45 V. | Higher design flexibility but larger footprint and sensitivity to layout parasitics. | Select when fine-tuned biasing or adjustable gain is needed; not suitable for space-constrained or high-volume automated assembly. |
| PDTA143ET | PNP complement; same R1/R2 values; VECO = 50 V; IO = −500 mA; identical SOT23 package and thermal specs. | Used for high-side switching where load connects to VCC instead of GND. | Select for complementary high-side control in H-bridge or dual-rail driver stages; shares same footprint and qualification. |
Compared with BC807-40, PDTD143ET reduces bill-of-materials and improves thermal stability at elevated temperatures; compared with PDTA143ET, it provides NPN topology for low-side switching with identical reliability and footprint-making it optimal for cost-sensitive, high-volume digital I/O expansion.
Availability
PDTD143ET is available at Aetrix Electronics and suitable for industrial PLC input stages, automotive body control modules, and consumer appliance motor drivers requiring stable component supply, long-term lifecycle assurance, and AEC-Q200-aligned reliability (non-automotive qualified version).
Supply support for PDTD143ET 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 essential efficiency technologies, delivering high-performance, reliable discrete and logic devices for automotive, industrial, and consumer markets.
PDTD143ET belongs to Nexperia's Resistor-Equipped Transistor (RET) family, engineered to simplify digital interface design by integrating precision bias networks into miniature SOT23 packages for high-reliability industrial and automotive-adjacent applications.
FAQ
What is the maximum allowable input voltage at Pin 1 (I)?
The absolute maximum input voltage at Pin 1 is +30 V, with minimum −10 V, per the VI specification. However, for reliable digital switching, VI(on) is specified between 1.0 V and 2.2 V (typical 1.6 V) at IC = 20 mA, ensuring compatibility with standard 3.3 V and 5 V logic families without clamping diodes.
Can PDTD143ET replace BC847 in linear amplifier applications?
No-PDTD143ET is optimized for saturated switching, not linear amplification. Its integrated resistors fix the base bias point, preventing external gain adjustment. The datasheet specifies hFE only at IC = 50 mA (min 60), and VCE(sat) is characterized-not VBE linearity or small-signal parameters required for analog use.
How does thermal performance differ between single-sided and 4-layer PCB mounting?
On a single-sided FR4 PCB, Rth(j-a) is 470 K/W, limiting continuous power dissipation to 320 mW at Tamb = 25 °C. On a 4-layer board, Rth(j-a) drops to 327 K/W, raising Ptot to 460 mW-enabling 500 mA operation at up to 65 °C ambient without derating, critical for enclosed industrial enclosures.
Is PDTD143ET qualified for automotive applications?
No-this variant is non-automotive qualified per Revision History (v.2, 2022). Nexperia offers automotive-grade equivalents (e.g., PDTD143ET-Q) with AEC-Q101 qualification, extended temperature screening, and PPAP documentation. Use only the -Q suffix part for safety-critical or chassis-mounted automotive systems.
PDTD143ETVL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Transistor Type:
- NPN - Pre-Biased
- Current - Collector (Ic) (Max):
- 500 mA
- Voltage - Collector Emitter Breakdown (Max):
- 50 V
- Resistor - Base (R1):
- 4.7 kOhms
- Resistor - Emitter Base (R2):
- 4.7 kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 60 @ 50mA, 5V
- Vce Saturation (Max) @ Ib, Ic:
- 100mV @ 2.5mA, 50mA
- Current - Collector Cutoff (Max):
- 500nA
- Frequency - Transition:
- 225 MHz
- Power - Max:
- 320 mW
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-236AB
PDTD143ETVL FAQ
1.How can I place an order for PDTD143ETVL through Aetrix?
Please submit a Request for Quotation (RFQ) for PDTD143ETVL 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 PDTD143ETVL reliable?
The price and inventory of PDTD143ETVL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDTD143ETVL is usually 5 days.
3.What payment methods are accepted for PDTD143ETVL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDTD143ETVL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDTD143ETVL?
PDTD143ETVL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDTD143ETVL 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 PDTD143ETVL?
For technical support, including PDTD143ETVL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDTD143ETVL requirements.
6.How does Aetrix verify that PDTD143ETVL is sourced from the original manufacturer or authorized distributors?
All PDTD143ETVL 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 PDTD143ETVL meets industry standards.
7.What is the process for return or replacement of PDTD143ETVL?
All PDTD143ETVL units undergo pre-shipment inspection (PSI). If there is an issue with PDTD143ETVL, 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 PDTD143ETVL part is unused and in its original packaging.
Return procedure for PDTD143ETVL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PDTD143ETVL Tags
-
MUN5211T1G
onsemi
-
DTC043ZEBTL
Rohm Semiconductor
-
DTC114EKAT146
Rohm Semiconductor
-
DDTD113ZC-7-F
Diodes Incorporated
-
DRDNB16W-7
Diodes Incorporated
-
PDTC114ET,215
Nexperia USA Inc.
-
PDTC143ZT,215
Nexperia USA Inc.
-
PDTC143ET,215
Nexperia USA Inc.
-
PDTC143XT,215
Nexperia USA Inc.
-
MMUN2211LT1G
onsemi
-
PDTC144ET,215
Nexperia USA Inc.
-
PDTC124ET,215
Nexperia USA Inc.
Tech Hub
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
Engineering guide to Raspberry Pi alternatives, covering chip-level differences, Orange Pi, ROCK, Jetson, Banana Pi, NanoPi, Compute Module, Pico, GPIO, camera, HAT compatibility, and replacement risks…
