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Nexperia USA Inc. PDTC123JQCZ
- Part No.:
- PDTC123JQCZ
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- 3-XDFN Exposed Pad
- Datasheet:
-
PDTC123JQCZ.pdf
- Description:
- TRANS PREBIAS NPN 50V 0.1A 3DFN
- Quantity:
- Payment:
- Shipping:
Inventory:5,000
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Product details
Overview
PDTC123JQC from Nexperia is a 50 V, 100 mA NPN resistor-equipped transistor (RET) in a DFN1412D-3 (SOT8009) leadless SMD package with side-wettable flanks. It integrates 2.2 kΩ input bias resistor (R1) and 47 kΩ feedback resistor (R2), delivers hFE = 100 at IC = 10 mA, VCE(sat) ≤ 100 mV, and supports digital switching of IC inputs and low-power loads.
For engineers reviewing the PDTC123JQC datasheet, PDTC123JQC pinout, PDTC123JQC application, or PDTC123JQC equivalent, this device serves as a space-optimized, component-count-reducing alternative to discrete BJT + resistor combinations in logic-level interface and load control circuits where 100 mA output current and 50 V breakdown are required.
Technical Context
This RET implements an integrated NPN transistor with two monolithically embedded silicon resistors: R1 connects base to input terminal, and R2 connects base to emitter. The internal topology enables single-pin drive operation without external bias components, reducing PCB footprint and assembly cost.
Designed for digital switching, it operates with VI(on) = 0.75–1.1 V at IC = 5 mA and VI(off) = 0.5–0.6 V, ensuring reliable turn-on/turn-off across –40 °C to +150 °C ambient range while maintaining VCEO = 50 V and IO = 100 mA continuous rating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 50 V - Maximum collector-emitter voltage before breakdown; supports rail-to-rail switching in 3.3 V and 5 V logic systems. |
| IO | 100 mA - Continuous output current capability; sufficient for driving LEDs, small relays, and logic inputs. |
| hFE | 100 - DC current gain at VCE = 5 V, IC = 10 mA; ensures stable saturation with low base drive current. |
| R1 / R2 | 2.2 kΩ / 47 kΩ - Integrated bias network eliminates need for external resistors; sets predictable switching threshold and gain. |
| VCE(sat) | ≤ 100 mV - Low saturation voltage minimizes power loss and self-heating during on-state operation. |
| Package | DFN1412D-3 (SOT8009) - 1.4 × 1.2 × 0.48 mm ultra-small leadless package with side-wettable flanks for AOI-compatible reflow soldering. |
Pinout & Package
DFN1412D-3 (SOT8009) is a 3-terminal, leadless plastic package with 0.8 mm pitch, 0.48 mm height, and side-wettable flanks for automated optical inspection of solder joints.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Input (base) | Connects to driving signal source; internally tied to R1 top node and transistor base. |
| 2 | GND (emitter) | Emitter terminal and reference node for R2; must be connected to system ground or low-side return path. |
| 3 | Output (collector) | Switched high-side output node; connects to load anode or pull-up network in active-low configurations. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated bias resistors | Eliminates two external components per switch channel, reducing BOM count and layout area by >30% vs. discrete BJT + R1/R2. |
| Side-wettable flanks | Enables automated optical inspection (AOI) of solder joints on bottom-terminated packages, improving manufacturing yield and traceability. |
| Low profile (0.48 mm) | Supports ultra-thin end equipment such as wearables and portable medical sensors where Z-height is constrained. |
| 100 mA output rating | Provides sufficient drive strength for microcontroller GPIO expansion, LED arrays, and small-signal MOSFET gate control without external buffers. |
Applications
| LED Driver Circuit | Microcontroller GPIO Expander |
|---|---|
Use Scenario: Driving 20 mA indicator LEDs from 3.3 V MCU outputs with limited sink/source capability. IC Role / Device Role: Single-transistor current switch replacing BC847 + two resistors. Use Value: Reduces board area by 0.8 mm² per channel and eliminates resistor placement error risk during pick-and-place. |
Use Scenario: Extending I/O count of an ARM Cortex-M0+ MCU by interfacing with 74HC138 decoder enable lines. IC Role / Device Role: Level-shifting and current-boosting buffer for 5 V logic inputs driven from 3.3 V GPIO. Use Value: Ensures clean 5 V logic-high assertion with <100 ns propagation delay and no external bias network. |
| Industrial Sensor Interface | Power Sequencing Control |
Use Scenario: Enabling/disabling analog sensor supply rails (e.g., 3.3 V LDO output) based on host processor command. IC Role / Device Role: Low-leakage, low-VCE(sat) switch controlling power domain activation. Use Value: Limits standby current to <100 nA (ICEO) and maintains <100 mV drop at full 100 mA load for minimal voltage loss. |
Use Scenario: Controlling startup order of FPGA core and I/O banks using open-drain reset signals. IC Role / Device Role: Inverting level translator and current amplifier for weak reset-source signals. Use Value: Provides sharp edge transition with VI(off) ≤ 0.6 V and VI(on) ≥ 0.75 V, preventing metastability in power sequencing logic. |
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 |
|---|---|---|---|
| PDTC143XQC | R1 = 4.7 kΩ, R2 = 10 kΩ, hFE = 50, VCEO = 50 V | Lower hFE and higher R2 reduce sensitivity to noise but require higher input voltage for full saturation. | Select when driving from 5 V logic with tighter VI(on) margin or when lower gain improves noise immunity. |
| BC847B | Discrete NPN BJT (no integrated resistors); hFE = 200–450; requires external R1/R2. | Higher gain enables lower base current but increases component count and layout complexity. | Choose only if precise gain tuning or thermal derating beyond 100 mA is required; not drop-in compatible. |
Compared with PDTC143XQC, PDTC123JQC offers higher hFE (100 vs. 50) and lower R1 (2.2 kΩ vs. 4.7 kΩ), enabling stronger drive from 3.3 V logic; versus BC847B, it trades design flexibility for guaranteed bias stability and reduced assembly cost.
Availability
PDTC123JQC is available at Aetrix Electronics and suitable for industrial sensor interfaces, microcontroller GPIO expansion, LED driver circuits, and power sequencing control requiring stable component supply and long-term manufacturability.
Supply support for PDTC123JQC 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.
PDTC123JQC belongs to the PDTCxx series of resistor-equipped transistors designed specifically for digital switching and logic interface simplification in space-constrained, cost-sensitive applications.
FAQ
What is the maximum continuous collector current for PDTC123JQC?
The maximum continuous collector current is 100 mA under standard FR4 PCB mounting conditions (single-sided, 35 µm copper). Derating applies above 25 °C ambient: power dissipation drops linearly to zero at 150 °C junction temperature, per Figure 1 in the datasheet.
Can PDTC123JQC replace BC847 in existing designs?
Yes, as a functional replacement in digital switching roles-but not pin-compatible. PDTC123JQC uses a 3-pin DFN package with Input/GND/Output terminals, whereas BC847 uses SOT23 with Base/Collector/Emitter. Layout redesign and bias network removal are required.
What is the significance of side-wettable flanks in SOT8009?
Side-wettable flanks expose solderable metal on the package edges, allowing automated optical inspection (AOI) systems to verify solder joint quality on bottom-terminated devices-critical for high-yield, high-reliability surface-mount assembly without X-ray.
How does the built-in resistor ratio affect switching behavior?
The R2/R1 ratio of 21 determines the internal feedback strength: higher ratios increase noise immunity and improve off-state leakage suppression but raise VI(on) threshold. For PDTC123JQC, R2/R1 = 21 yields VI(on) = 0.75–1.1 V and VI(off) = 0.5–0.6 V, optimizing for 3.3 V logic compatibility.
PDTC123JQCZ 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):
- 2.2 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):
- 100nA
- Frequency - Transition:
- 230 MHz
- Power - Max:
- 360 mW
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- DFN1412D-3
PDTC123JQCZ FAQ
1.How can I place an order for PDTC123JQCZ through Aetrix?
Please submit a Request for Quotation (RFQ) for PDTC123JQCZ 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 PDTC123JQCZ reliable?
The price and inventory of PDTC123JQCZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDTC123JQCZ is usually 5 days.
3.What payment methods are accepted for PDTC123JQCZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDTC123JQCZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDTC123JQCZ?
PDTC123JQCZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDTC123JQCZ 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 PDTC123JQCZ?
For technical support, including PDTC123JQCZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDTC123JQCZ requirements.
6.How does Aetrix verify that PDTC123JQCZ is sourced from the original manufacturer or authorized distributors?
All PDTC123JQCZ 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 PDTC123JQCZ meets industry standards.
7.What is the process for return or replacement of PDTC123JQCZ?
All PDTC123JQCZ units undergo pre-shipment inspection (PSI). If there is an issue with PDTC123JQCZ, 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 PDTC123JQCZ part is unused and in its original packaging.
Return procedure for PDTC123JQCZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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