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Diodes Incorporated ADTC124EUAQ-13
- Part No.:
- ADTC124EUAQ-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- SC-70, SOT-323
- Datasheet:
-
ADTC124EUAQ-13.pdf
- Description:
- TRANS PREBIAS NPN 50V SOT323
- Quantity:
- Payment:
- Shipping:
Inventory:4,965
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Product details
Overview
ADTC124EUAQ from Diodes Incorporated is an AEC-Q101 qualified NPN pre-biased transistor in SOT323 package, featuring integrated 22 kΩ bias resistors (R1 = R2), 100 mA IC(max), 30 mA output current, and 330 mW power dissipation. It serves as a compact, automotive-grade digital switching element for level translation and signal conditioning in low-power control circuits.
For engineers reviewing the ADTC124EUAQ datasheet, ADTC124EUAQ pinout, ADTC124EUAQ application, or ADTC124EUAQ equivalent, key selection criteria include guaranteed turn-on/off thresholds (VI(on) ≤ 3.0 V, VI(off) ≥ 0.5 V), DC current gain (GI = 56 min), thermal resistance (RθJA = 375 °C/W), and automotive qualification status under IATF 16949.
Technical Context
This device integrates two matched 22 kΩ base bias resistors to enable single-resistor external drive, eliminating discrete bias network design. Its epitaxial planar construction ensures stable gain and leakage performance across -55°C to +150°C operating range.
The transistor operates with defined input voltage thresholds (VI(on) typ. 1.9 V at IO = 5 mA, VO = 0.3 V; VI(off) typ. 1.1 V at IO = 100 μA), and delivers VO(on) ≤ 0.3 V at IO/II = 10 mA/0.5 mA - enabling reliable logic-level interfacing in 3.3 V and 5 V systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Max | 50 V - supports rail-to-rail switching in 24 V automotive subsystems without derating |
| IC(max) | 100 mA - sufficient for driving small relays, LEDs, or logic inputs directly |
| PD | 330 mW - enables operation on minimal copper FR-4 PCB without heatsinking |
| GI | 56 min - ensures predictable saturation under worst-case temperature and process variation |
| RθJA | 375 °C/W - defines thermal headroom for ambient temperatures up to +125°C at full load |
| VI(on)/VI(off) | ≤3.0 V / ≥0.5 V - guarantees robust noise margin against TTL/CMOS logic thresholds |
| fT | 250 MHz typ. - supports high-speed digital switching up to ~10–20 MHz edge rates |
Pinout & Package
SOT323 surface-mount package: 3-pin, ultra-compact (2.15 × 2.10 × 0.95 mm), matte tin-plated leads, moisture sensitivity level 1, UL 94V-0 molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Emitter) | Input reference node for bias network | Connected internally to R2; provides common return path for input current and output emitter current |
| 2 (Base) | Internal connection point of R1–R2 divider | Not externally accessible; sets internal base potential when input applied to Pin 1 and Pin 3 |
| 3 (Collector) | Output current sink terminal | Delivers switched load current to ground via external load connected between VCC and Pin 3 |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive use with PPAP capability and IATF 16949 manufacturing |
| Built-in R1 = R2 = 22 kΩ | Eliminates two external resistors, reducing BOM count and layout area by >30% vs discrete bias solution |
| VO(on) ≤ 0.3 V @ 10 mA | Ensures <0.5 V total drop in 3.3 V logic-driven loads, preserving noise margin |
| Halogen & antimony free | Meets "Green" definition: Br+Cl <1500 ppm, Sb <1000 ppm - compliant with automotive environmental mandates |
| Moisture Sensitivity Level 1 | Enables standard SMT reflow without baking, reducing assembly cost and handling risk |
Applications
| Automotive Body Control Module | Industrial Sensor Interface |
|---|---|
Use Scenario: Driving LED status indicators and small solenoid valves in door modules and lighting controllers. IC Role / Device Role / Timing Role: NPN switch providing controlled current sink with defined turn-on threshold and low saturation voltage. Use Value: Reduces component count vs discrete transistor + resistor solution while meeting AEC-Q101 reliability requirements. | Use Scenario: Level-shifting and buffering analog sensor outputs (e.g., thermistor, potentiometer) into microcontroller GPIOs. IC Role / Device Role / Timing Role: Digital interface buffer with guaranteed logic-compatible input thresholds and fast switching. Use Value: Enables direct connection of 5 V sensor signals to 3.3 V MCU inputs without external voltage dividers or Schmitt triggers. |
| Consumer Appliance Control Board | Medical Diagnostic Equipment |
Use Scenario: Controlling buzzer drivers and relay coils in washing machine control units and HVAC panels. IC Role / Device Role / Timing Role: Low-power, high-reliability switching element with stable gain over temperature. Use Value: Maintains consistent drive strength across -40°C to +85°C ambient, avoiding intermittent actuator failure. | Use Scenario: Isolating and gating critical alarm signals in portable diagnostic devices (e.g., pulse oximeters, glucose meters). IC Role / Device Role / Timing Role: Fail-safe signal gate with verified off-state leakage (<0.5 μA) and rapid turn-off response. Use Value: Prevents false alarms due to leakage-induced floating states during standby or battery-low conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NPN pre-biased transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NSV12400MXV6T1G | R1 = R2 = 47 kΩ; lower input current (Il ≈ 0.17 mA @ 5 V); same SOT-323 package | Higher input impedance suits high-impedance MCU GPIOs but reduces noise immunity | Select when drive source has limited current capability and noise environment is benign |
| DTC124EKAT146 | Same R1/R2 values (22 kΩ), but non-automotive grade; no AEC-Q101 or PPAP support | Limited to industrial/commercial use; not approved for safety-critical automotive functions | Choose for cost-sensitive non-automotive designs where qualification documentation is unnecessary |
Compared with NSV12400MXV6T1G and DTC124EKAT146, ADTC124EUAQ uniquely combines automotive qualification, matched 22 kΩ biasing, and guaranteed VI(on)/VI(off) thresholds - making it the only option qualified for production body electronics requiring change control and traceability.
Availability
ADTC124EUAQ is available at Aetrix Electronics and suitable for automotive body control modules, industrial sensor interfaces, consumer appliance control boards, and medical diagnostic equipment requiring stable component supply and long-term lifecycle assurance.
Supply support for ADTC124EUAQ 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability components for automotive, industrial, and computing markets.
The ADTC124EUAQ belongs to Diodes' Automotive-Grade Pre-Biased Transistor (PBT) product line, designed specifically to replace discrete BJT + resistor combinations in AEC-Q101-compliant control circuits.
FAQ
What is the maximum continuous collector current for ADTC124EUAQ?
The absolute maximum rated collector current is 100 mA, but the recommended continuous output current is 30 mA under typical PCB thermal conditions. This limit ensures junction temperature remains within safe operating range (≤150°C) with 330 mW power dissipation and 375 °C/W thermal resistance on minimum-copper FR-4 board.
Does ADTC124EUAQ require external bias resistors?
No - ADTC124EUAQ integrates two precision 22 kΩ bias resistors (R1 and R2) internally. Only three external connections are needed: input to Pin 1, VCC to load, and load output to Pin 3 (collector). Pin 2 is not externally accessible and serves as the internal base node.
Is ADTC124EUAQ compatible with lead-free reflow processes?
Yes - it features matte tin-plated leads fully compliant with Pb-free soldering per J-STD-020, with Moisture Sensitivity Level 1 rating. No pre-bake is required before standard SnAgCu reflow profiles, supporting automated SMT assembly without process modification.
How does the AEC-Q101 qualification impact design validation?
AEC-Q101 qualification confirms device reliability under automotive stress conditions including temperature cycling, HTRB, and ESD testing. For OEMs, this eliminates need for redundant qualification testing, accelerates PPAP submission, and satisfies Tier 1 supplier requirements for change-controlled, IATF 16949-manufactured components.
ADTC124EUAQ-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Transistor Type:
- NPN - Pre-Biased
- Current - Collector (Ic) (Max):
- 100 mA
- Voltage - Collector Emitter Breakdown (Max):
- 50 V
- Resistor - Base (R1):
- 22 kOhms
- Resistor - Emitter Base (R2):
- 22 kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 56 @ 5mA, 5V
- Vce Saturation (Max) @ Ib, Ic:
- 300mV @ 500µA, 10mA
- Current - Collector Cutoff (Max):
- 500nA
- Frequency - Transition:
- 250 MHz
- Power - Max:
- 330 mW
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-323
ADTC124EUAQ-13 FAQ
1.How can I place an order for ADTC124EUAQ-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADTC124EUAQ-13 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 ADTC124EUAQ-13 reliable?
The price and inventory of ADTC124EUAQ-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADTC124EUAQ-13 is usually 5 days.
3.What payment methods are accepted for ADTC124EUAQ-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADTC124EUAQ-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADTC124EUAQ-13?
ADTC124EUAQ-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADTC124EUAQ-13 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 ADTC124EUAQ-13?
For technical support, including ADTC124EUAQ-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADTC124EUAQ-13 requirements.
6.How does Aetrix verify that ADTC124EUAQ-13 is sourced from the original manufacturer or authorized distributors?
All ADTC124EUAQ-13 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 ADTC124EUAQ-13 meets industry standards.
7.What is the process for return or replacement of ADTC124EUAQ-13?
All ADTC124EUAQ-13 units undergo pre-shipment inspection (PSI). If there is an issue with ADTC124EUAQ-13, 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 ADTC124EUAQ-13 part is unused and in its original packaging.
Return procedure for ADTC124EUAQ-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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