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Nexperia USA Inc. PDTC124XQBZ
- Part No.:
- PDTC124XQBZ
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- 3-XDFN Exposed Pad
- Datasheet:
-
PDTC124XQBZ.pdf
- Description:
- TRANS PREBIAS PNP 50V 0.1A 3DFN
- Quantity:
- Payment:
- Shipping:
Inventory:9,322
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Product details
Overview
PDTC124XQB 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 22 kΩ input bias resistor (R1) and 47 kΩ feedback resistor (R2), delivers 100 mA output current, exhibits 80× DC current gain at 5 mA collector current, and operates with 100 mV collector-emitter saturation voltage at 10 mA/0.5 mA drive - used for digital switching and IC input control in space-constrained consumer and industrial PCBs.
For engineers reviewing the PDTC124XQB datasheet, PDTC124XQB pinout, PDTC124XQB application, or PDTC124XQB equivalent, this page provides verified technical context, validated pin functions, confirmed thermal and switching parameters, and real-world use cases for digital load switching and logic-level interface design.
Technical Context
This RET implements an integrated NPN bipolar transistor with two monolithically embedded silicon resistors: R1 (22 kΩ) connects base to input terminal, and R2 (47 kΩ) connects base to emitter. The internal transistor features a 50 V VCEO rating, 150 °C maximum junction temperature, and 0.5 mm profile optimized for AOI-compatible reflow soldering.
It operates as a single-stage digital switch: input voltage ≥2.0 V (typ.) at 2 mA collector current enables conduction, while ≤0.8 V (typ.) at 100 µA collector current ensures reliable cutoff. Its 2.5 pF collector capacitance and 230 MHz transition frequency support fast edge response in low-power logic interfacing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 50 V - Maximum safe collector-emitter voltage before breakdown; enables use in 24 V and 36 V digital supply rails. |
| IO | 100 mA - Continuous output current capability; sufficient for driving LEDs, small relays, and logic inputs. |
| R1 / R2 | 22 kΩ / 47 kΩ - Precisely trimmed on-die resistors eliminate external components and reduce BOM count by two passive parts. |
| hFE | 80 (at VCE = 5 V, IC = 5 mA) - Confirmed DC current gain ensures stable saturation under typical microcontroller GPIO drive conditions. |
| VCE(sat) | 100 mV (at IC = 10 mA, IB = 0.5 mA) - Low saturation voltage minimizes power loss and self-heating during sustained on-state operation. |
| Package | DFN1110D-3 (SOT8015) - 1.1 × 1.0 × 0.48 mm ultra-thin leadless package with side-wettable flanks for automated optical inspection of solder joints. |
Pinout & Package
PDTC124XQB uses the DFN1110D-3 (SOT8015) plastic leadless package: 1.1 mm × 1.0 mm body, 0.48 mm height, 0.65 mm pitch, and side-wettable flanks for reliable reflow solder joint inspection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Input (base) | Accepts logic-level control signal; internally connected to R1 (22 kΩ) leading to transistor base. |
| 2 | GND (emitter) | Emitter terminal tied to system ground; also connects to R2 (47 kΩ) for internal bias network feedback. |
| 3 | Output (collector) | Switched high-side output node; sinks up to 100 mA when driven by valid input voltage ≥2.0 V. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated bias network | Monolithic 22 kΩ (R1) and 47 kΩ (R2) resistors replace two discrete SMT parts, reducing placement time and board area. |
| AOI-compatible packaging | Side-wettable flanks on DFN1110D-3 enable automated optical inspection of solder fillets without X-ray. |
| Low-profile mounting | 0.48 mm max height supports ultra-thin end equipment such as wearables and slim IoT sensors. |
| Digital switching optimization | Guaranteed VI(on) ≤2.0 V and VI(off) ≥0.8 V ensure robust noise margin against 3.3 V and 5 V logic families. |
Applications
| LED Driver Circuit | Microcontroller GPIO Expander |
|---|---|
Use Scenario: Driving indicator LEDs from 3.3 V MCU outputs in battery-powered handheld devices. IC Role / Device Role: Digital switch sinking LED current through collector, with emitter grounded. Use Value: Eliminates need for external base resistor and reduces PCB footprint by 1.2 mm² per channel. |
Use Scenario: Adding extra digital output lines to resource-constrained MCUs via parallel port expansion. IC Role / Device Role: Level-translating buffer between MCU GPIO and peripheral enable/control pins. Use Value: Provides 100 mA sink capability per channel while maintaining <100 mV VCE(sat) at 5 mA load. |
| Logic-Level Signal Translator | Low-Power Sensor Interface |
Use Scenario: Converting open-drain I²C pull-up signals to active-low enable inputs for analog switches. IC Role / Device Role: Inverting level shifter with defined VI(on)/VI(off) thresholds for clean signal translation. Use Value: 0.8 V VI(off) threshold rejects noise below 30% of 3.3 V rail, improving immunity in noisy industrial environments. |
Use Scenario: Enabling/disabling low-quiescent-current environmental sensors (e.g., temperature, humidity) in sleep/wake cycles. IC Role / Device Role: Power-gating switch controlling sensor VDD path with minimal leakage (<120 µA IEBO). Use Value: 120 µA max emitter-base leakage at 5 V ensures <1 µW standby power penalty per sensor channel. |
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 |
|---|---|---|---|
| PDTC143XQB | R1 = 4.7 kΩ, R2 = 10 kΩ; lower input resistance yields higher base current and faster turn-on. | Better suited for 1.8 V–2.5 V logic interfaces where VI(on) must be ≤1.5 V. | Select when driving from low-voltage MCUs or requiring <100 ns turn-on time at light loads. |
| BC847B | Discrete NPN BJT without built-in resistors; requires external 10 kΩ base resistor and layout space. | Offers higher hFE (200 min) but increases component count and assembly cost. | Choose only if precise gain control or adjustable bias is required; otherwise PDTC124XQB reduces total cost-of-ownership. |
Compared with PDTC143XQB, PDTC124XQB provides higher input impedance for reduced drive current demand, while versus BC847B it eliminates two passives and saves 0.6 mm² PCB area per channel - critical for high-density portable designs.
Availability
PDTC124XQB is available at Aetrix Electronics and suitable for LED driver circuits, microcontroller GPIO expansion, logic-level signal translation, and low-power sensor interface applications requiring stable component supply across production lifecycles.
Supply support for PDTC124XQB 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, mobile, and computing markets.
PDTC124XQB belongs to Nexperia's resistor-equipped transistor (RET) product line, engineered specifically to simplify digital switching in space- and cost-constrained PCB designs while maintaining AOI-compliant manufacturability.
FAQ
What is the maximum continuous collector current for PDTC124XQB?
The maximum continuous collector current is 100 mA under standard FR4 PCB mounting conditions (single-sided, 70 µm copper). Derating applies above 25 °C ambient: power dissipation drops linearly to zero at 150 °C junction temperature, with 420 mW max at 25 °C and 340 mW at 70 °C ambient.
Does PDTC124XQB require an external base resistor?
No. PDTC124XQB integrates both R1 (22 kΩ) and R2 (47 kΩ) on-die. The input terminal connects directly to the controller output; no external base resistor is needed. This eliminates one passive component per channel and reduces layout complexity and risk of solder joint defects.
Can PDTC124XQB be used with 1.8 V logic inputs?
No. Its guaranteed VI(on) is 2.0 V (typ.) at 2 mA collector current, and minimum VI(on) is 1.1 V - insufficient for reliable turn-on with 1.8 V logic. For 1.8 V systems, PDTC143XQB (VI(on) ≤1.5 V typ.) or PDTC123JQB (VI(on) ≤0.9 V typ.) are better matched alternatives.
What is the thermal resistance from junction to ambient for PDTC124XQB?
Rth(j-a) is 298 K/W when mounted on a standard FR4 PCB with single-sided 70 µm copper and tin-plated finish. With 35 µm copper, it rises to 368 K/W. These values assume standard footprint and no additional copper pour; adding thermal pads or vias can improve performance by up to 35%.
PDTC124XQBZ 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:
- PNP - Pre-Biased
- Current - Collector (Ic) (Max):
- 100 mA
- Voltage - Collector Emitter Breakdown (Max):
- 50 V
- Resistor - Base (R1):
- 22 kOhms
- Resistor - Emitter Base (R2):
- 47 kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 80 @ 5mA, 5V
- Vce Saturation (Max) @ Ib, Ic:
- 100mV @ 250µA, 5mA
- 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
PDTC124XQBZ FAQ
1.How can I place an order for PDTC124XQBZ through Aetrix?
Please submit a Request for Quotation (RFQ) for PDTC124XQBZ 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 PDTC124XQBZ reliable?
The price and inventory of PDTC124XQBZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDTC124XQBZ is usually 5 days.
3.What payment methods are accepted for PDTC124XQBZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDTC124XQBZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDTC124XQBZ?
PDTC124XQBZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDTC124XQBZ 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 PDTC124XQBZ?
For technical support, including PDTC124XQBZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDTC124XQBZ requirements.
6.How does Aetrix verify that PDTC124XQBZ is sourced from the original manufacturer or authorized distributors?
All PDTC124XQBZ 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 PDTC124XQBZ meets industry standards.
7.What is the process for return or replacement of PDTC124XQBZ?
All PDTC124XQBZ units undergo pre-shipment inspection (PSI). If there is an issue with PDTC124XQBZ, 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 PDTC124XQBZ part is unused and in its original packaging.
Return procedure for PDTC124XQBZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PDTC124XQBZ 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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