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Nexperia USA Inc. PDTC143EQBZ
- Part No.:
- PDTC143EQBZ
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- 3-XDFN Exposed Pad
- Datasheet:
-
PDTC143EQBZ.pdf
- Description:
- TRANS PREBIAS NPN 50V 0.1A 3DFN
- Quantity:
- Payment:
- Shipping:
Inventory:7,114
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Product details
Overview
PDTC143EQB from Nexperia is a 50 V, 100 mA NPN resistor-equipped transistor (RET) in a DFN1110D-3 (SOT8015) leadless SMD package with side-wettable flanks. It integrates 4.7 kΩ input and 4.7 kΩ emitter-base bias resistors, delivers 100 mA output current, exhibits 100 mV VCE(sat) at IC = 10 mA / IB = 0.5 mA, and supports digital switching applications including IC input control and low-power load switching.
For engineers reviewing the PDTC143EQB datasheet, PDTC143EQB pinout, PDTC143EQB application, or PDTC143EQB equivalent, this device serves as a space-optimized, AOI-compatible replacement for discrete BJT + resistor networks in 3.3 V/5 V logic interface circuits requiring ≤100 mA switching capability and simplified PCB layout.
Technical Context
The PDTC143EQB integrates an NPN transistor with two monolithically embedded silicon resistors: R1 (4.7 kΩ) between base and input terminal, and R2 (4.7 kΩ) between base and emitter. Its internal resistor ratio (R2/R1 = 1.0) ensures predictable turn-on behavior under standard logic drive conditions.
Designed for digital switching, it operates with VI(on) = 1.9–2.5 V (at VCE = 0.3 V, IC = 20 mA) and VI(off) = 0.5–1.1 V (at VCE = 5 V, IC = 100 µA), enabling reliable interfacing with TTL and CMOS outputs without external biasing components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 50 V - Maximum collector-emitter voltage before breakdown; supports rail-to-rail switching in 24 V industrial I/O and 3.3/5 V logic systems. |
| IO | 100 mA - Continuous DC output current capability; sufficient for driving LEDs, small relays, MOSFET gates, and logic inputs. |
| VCE(sat) | 100 mV @ IC=10 mA, IB=0.5 mA - Low saturation voltage minimizes power loss and self-heating during on-state operation. |
| R1 / R2 | 4.7 kΩ / 4.7 kΩ - Integrated bias resistors eliminate need for external components, reducing BOM count and layout area by ~2 parts per switch node. |
| hFE | 30 min @ VCE=5 V, IC=10 mA - Guaranteed DC current gain ensures stable switching margin across temperature and process variation. |
| fT | 230 MHz - Transition frequency confirms suitability for high-speed digital switching up to ~10–20 MHz edge rates. |
| Package | DFN1110D-3 (SOT8015) - 1.1 × 1.0 × 0.48 mm ultra-thin leadless package with side-wettable flanks for automated optical inspection (AOI) of solder joints. |
Pinout & Package
PDTC143EQB uses the DFN1110D-3 (SOT8015) package: 3-terminal, leadless, 0.65 mm pitch, body size 1.1 mm × 1.0 mm × 0.48 mm, with side-wettable flanks for reliable reflow solder joint inspection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Input (base via R1) | Logic-level input node connected internally to base through 4.7 kΩ resistor; accepts 3.3 V/5 V CMOS/TTL signals directly. |
| 2 | GND (emitter) | Emitter terminal tied to system ground; provides return path for load current and sets reference for R2 bias network. |
| 3 | Output (collector) | Switched output node connected to load; sinks up to 100 mA when driven high at Pin 1, with <100 mV drop. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated bias resistors | Eliminates 2 external resistors per switch, reducing component count, placement cost, and PCB real estate in dense digital interfaces. |
| Side-wettable flanks | Enables automated optical inspection (AOI) of solder joints on bottom-terminated packages, improving manufacturing yield and reliability verification. |
| Ultra-low profile | 0.48 mm max height supports ultra-thin end equipment such as wearables, IoT sensors, and slim consumer modules. |
| 100 mA output rating | Sufficient for driving indicator LEDs, optocoupler inputs, small-signal relays, and gate resistors of power MOSFETs in low-power systems. |
Applications
| LED Indicator Control | Digital Input Conditioning |
|---|---|
Use Scenario: Driving status LEDs on microcontroller GPIO pins with current limiting. IC Role / Device Role / Timing Role: Low-side switch sinking LED current from VCC to GND. Use Value: Eliminates need for external base resistor and current-limiting resistor, reducing bill-of-materials by two passive components per LED. | Use Scenario: Level-shifting and noise filtering for push-button or sensor inputs to MCU. IC Role / Device Role / Timing Role: Digital buffer isolating noisy mechanical switches from sensitive logic inputs. Use Value: Built-in R1/R2 network provides hysteresis-free pull-down and defined input threshold (VI(on) ≈ 2.0 V), ensuring clean signal transitions. |
| Small Relay Driver | Logic-Controlled Load Switch |
Use Scenario: Activating 5 V/12 V signal relays in industrial control panels. IC Role / Device Role / Timing Role: Interface transistor amplifying MCU GPIO output to relay coil current. Use Value: 100 mA IO and 50 V VCEO support common 5–24 V relay coils; low VCE(sat) reduces coil power dissipation. | Use Scenario: Enabling/disabling peripheral modules (e.g., sensors, transceivers) via host processor. IC Role / Device Role / Timing Role: High-side or low-side load switch controlled by logic-level enable signal. Use Value: Integrated resistors ensure fast, consistent turn-on/off timing without external RC delays; AOI-compatible package supports high-reliability production. |
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 |
|---|---|---|---|
| PDTC114EQB | R1 = R2 = 10 kΩ; higher VI(off) (0.8 V typ), lower hFE (30 min), same 100 mA IO | Better noise immunity in high-EMI environments due to higher off-threshold; slightly slower turn-on at low drive currents. | Select when interfacing with open-drain outputs or where higher input hysteresis is needed. |
| BC847B | Discrete NPN BJT (no integrated resistors); hFE = 200–450; requires external base resistor; same SOT23 package. | Higher gain and flexibility but increases component count, layout complexity, and assembly cost. | Select only when precise bias tuning or analog amplification is required beyond digital switching. |
Compared with PDTC114EQB, PDTC143EQB offers lower input resistance for faster turn-on with weak drivers; compared with BC847B, it eliminates two passives per switch node while maintaining identical footprint compatibility in many layouts.
Availability
PDTC143EQB is available at Aetrix Electronics and suitable for industrial control panels, IoT sensor nodes, and consumer electronics requiring stable component supply, AOI-compatible packaging, and reduced BOM complexity in digital switching functions.
Supply support for PDTC143EQB 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-grade and industrial-standard components.
The PDTC143EQB belongs to Nexperia's resistor-equipped transistor (RET) product line, engineered specifically to replace discrete BJT + resistor combinations in cost-sensitive, space-constrained digital interface applications.
FAQ
What is the maximum continuous collector current for PDTC143EQB?
The PDTC143EQB is rated for 100 mA continuous DC output current (IO) under standard PCB mounting conditions (FR4, single-sided, 35 µm copper). Derating applies above 25 °C ambient, with total power dissipation limited to 340 mW at Tamb ≤ 25 °C.
Can PDTC143EQB be used with 1.8 V logic inputs?
No - PDTC143EQB has a minimum VI(on) of 1.9 V (typical) at IC = 20 mA, and its guaranteed turn-on threshold is not specified below 2.5 V. For 1.8 V systems, consider PDTC124EQB or PDTC144EQB, which offer lower VI(on) values down to 1.6 V and 1.7 V respectively.
Is thermal relief required for the GND pad (Pin 2) during PCB layout?
Yes - Pin 2 (GND/emitter) is the primary thermal path. The datasheet specifies thermal resistance Rth(j-a) = 368 K/W on 35 µm FR4; adding thermal vias (≥4×0.3 mm) to inner ground planes significantly improves heat dissipation and supports sustained 100 mA operation.
Does PDTC143EQB have AEC-Q200 qualification?
No - PDTC143EQB is not automotive-qualified. Nexperia explicitly states in its legal disclaimers that non-automotive qualified products like this RET series are unsuitable for safety-critical or life-support applications, and lack AEC-Q200 stress testing and qualification documentation.
PDTC143EQBZ 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:
- 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):
- 4.7 kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 30 @ 10mA, 5V
- Vce Saturation (Max) @ Ib, Ic:
- 100mV @ 500µA, 10mA
- Current - Collector Cutoff (Max):
- 100nA
- Frequency - Transition:
- 180 MHz
- Power - Max:
- 340 mW
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- DFN1110D-3
PDTC143EQBZ FAQ
1.How can I place an order for PDTC143EQBZ through Aetrix?
Please submit a Request for Quotation (RFQ) for PDTC143EQBZ 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 PDTC143EQBZ reliable?
The price and inventory of PDTC143EQBZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDTC143EQBZ is usually 5 days.
3.What payment methods are accepted for PDTC143EQBZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDTC143EQBZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDTC143EQBZ?
PDTC143EQBZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDTC143EQBZ 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 PDTC143EQBZ?
For technical support, including PDTC143EQBZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDTC143EQBZ requirements.
6.How does Aetrix verify that PDTC143EQBZ is sourced from the original manufacturer or authorized distributors?
All PDTC143EQBZ 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 PDTC143EQBZ meets industry standards.
7.What is the process for return or replacement of PDTC143EQBZ?
All PDTC143EQBZ units undergo pre-shipment inspection (PSI). If there is an issue with PDTC143EQBZ, 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 PDTC143EQBZ part is unused and in its original packaging.
Return procedure for PDTC143EQBZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PDTC143EQBZ 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.
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