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Diodes Incorporated 2DA1774R-7-F
- Part No.:
- 2DA1774R-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Bipolar Transistors
- Package:
- SOT-523
- Datasheet:
-
2DA1774R-7-F.pdf
- Description:
- TRANS PNP 50V 0.15A SOT-523
- Quantity:
- Payment:
- Shipping:
Inventory:4,745
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Product details
Overview
2DA1774R-7-F from Diodes Incorporated is a 60V PNP small-signal transistor in SOT523 package, rated for -150mA continuous collector current, -50V VCEO, and 150mW power dissipation at +25°C ambient. It delivers hFE = 180–390 at VCE = -6V and IC = -1mA, with fT = 140MHz, and is AEC-Q101 qualified for automotive applications.
For engineers reviewing the 2DA1774R-7-F datasheet, 2DA1774R-7-F pinout, 2DA1774R-7-F application, or 2DA1774R-7-F equivalent, key selection criteria include its PNP polarity, SOT523 footprint compatibility, -50V VCEO rating, 140MHz fT, and AEC-Q101 qualification status for under-hood signal switching and biasing circuits.
Technical Context
This PNP bipolar junction transistor operates in linear and saturation regions for low-power amplification and switching. Its VCEO = -50V and VCBO = -60V support robust voltage margin in 12V/24V automotive supply rails, while ESD HBM rating of 4kV ensures handling resilience.
The device uses a planar epitaxial process with matte tin-plated leads, meets JEDEC reliability standards, and features thermal resistance RθJA = 833°C/W on standard FR-4 PCB - enabling stable operation up to +150°C junction temperature with appropriate derating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | -50V - Maximum safe collector-emitter voltage before breakdown in common-emitter configuration |
| IC (cont) | -150mA - Continuous DC collector current capability at TA = +25°C |
| hFE | 180–390 - DC current gain range at VCE = -6V, IC = -1mA, defining bias stability in amplifier stages |
| fT | 140MHz - Transition frequency where current gain drops to unity, supporting RF and high-speed switching up to ~100MHz |
| PD | 150mW - Max steady-state power dissipation at TA = +25°C on standard PCB layout |
| RθJA | 833°C/W - Junction-to-ambient thermal resistance, requiring >100°C/W derating above +25°C ambient |
Pinout & Package
Package: SOT523 - ultra-small surface-mount plastic package (1.60 × 1.60 × 0.75 mm), moisture sensitivity level 1, UL 94V-0 rated, weight ≈ 0.002 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Emitter) | E | Current source terminal in PNP configuration; connects to higher potential node in switching/bias circuits |
| 2 (Base) | B | Control input; requires negative base current relative to emitter to turn on device |
| 3 (Collector) | C | Current sink terminal; connects to load or lower-potential rail in common-emitter topology |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive use per stress test requirements including HTOL, TC, HAST, and ESD - supports PPAP-capable production |
| High VCBO (-60V) | Enables reliable operation in 24V systems with transient overvoltage margins exceeding ISO 7637-2 Pulse 1/2a |
| Low Cobo (4.0–5.0 pF) | Minimizes Miller effect in high-frequency amplifiers and fast-switching drivers, preserving bandwidth |
| Green construction | Halogen- and antimony-free, RoHS 3 compliant (<900 ppm Br/Cl, <1000 ppm Sb), suitable for eco-sensitive automotive modules |
Applications
| Automotive Body Control Module (BCM) LED Driver | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Driving 12V LED strings in door module lighting with PWM dimming and reverse-polarity protection. IC Role / Device Role / Timing Role: PNP switch controlling cathode-side current path; provides fast turn-off via base pull-up and withstands load dump transients. Use Value: -50V VCEO and 4kV HBM ESD rating ensure robustness against automotive electrical disturbances without external clamping. | Use Scenario: Amplifying low-level thermistor or RTD bridge outputs in industrial temperature transmitters. IC Role / Device Role / Timing Role: Linear-mode PNP current source in active load configuration for precision current mirror biasing. Use Value: hFE = 180–390 and low Cobo enable stable DC gain and minimal phase shift up to 100kHz bandwidth. |
| Automotive HVAC Blower Motor Control | Consumer Appliance Power Sequencing |
Use Scenario: Low-side pre-driver stage for N-channel MOSFET controlling 24V blower motor in climate control units. IC Role / Device Role / Timing Role: Level-shifting PNP buffer translating 3.3V MCU GPIO to -24V gate drive reference. Use Value: Fast fT = 140MHz and -150mA IC support clean 20kHz PWM edge transitions with <100ns propagation delay. | Use Scenario: Enabling 5V standby rail sequencing in smart home hubs before main 12V system activation. IC Role / Device Role / Timing Role: PNP-based enable switch with soft-start RC network on base to control ramp rate. Use Value: Tight hFE binning (R-grade) ensures predictable turn-on timing across temperature and lot variation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PNP small-signal transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 2DA1774Q-7-F | Lower hFE range (120–270); same VCEO, fT, and package | Suitable for cost-sensitive non-critical biasing where gain tolerance >±30% is acceptable | Select when design allows wider hFE variation and does not require tight current mirror matching |
| BC807-25LT1G | Higher IC (-500mA), lower VCEO (-45V), SOT-23 package (larger footprint) | Preferred for higher-current loads but incompatible with space-constrained SOT523 layouts | Choose only if board redesign accommodates SOT-23 and application demands >150mA drive capability |
Compared with 2DA1774Q-7-F, the 2DA1774R-7-F offers tighter hFE control for precision analog functions; versus BC807-25LT1G, it trades current capacity for ultra-compact size and automotive qualification - critical for space-limited AEC-Q101 designs.
Availability
2DA1774R-7-F is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor interfaces, and consumer appliance power sequencing requiring stable component supply, AEC-Q101 compliance, and SOT523 footprint consistency.
Supply support for 2DA1774R-7-F 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, headquartered in Plano, Texas, with design, manufacturing, and distribution operations across Asia, Europe, and North America.
The 2DA1774R-7-F belongs to Diodes' AEC-Q101-qualified small-signal transistor product line, engineered specifically for automotive signal switching, biasing, and interface functions in harsh-environment ECUs and sensors.
FAQ
What is the maximum operating junction temperature for 2DA1774R-7-F?
The device is rated for TJ = -55°C to +150°C. At TA = +25°C, its 150mW power dissipation limit and RθJA = 833°C/W allow ~130°C junction rise. Derating begins linearly above +25°C ambient, reaching zero dissipation at approximately +130°C ambient per the published thermal curve.
Is 2DA1774R-7-F pin-compatible with other SOT523 PNP transistors?
Yes - the SOT523 package has standardized pinout (Emitter-Base-Collector, left-to-right top view), so 2DA1774R-7-F shares mechanical and solder footprint compatibility with all SOT523 PNP devices. Electrical compatibility depends on VCEO, hFE, and fT specifications, not just pin alignment.
Does 2DA1774R-7-F require external ESD protection in automotive PCB layouts?
No - its 4kV HBM ESD rating meets typical automotive board-level ESD immunity requirements (ISO 10605 Class 3A). However, direct exposure to connector-level transients still warrants TVS diode protection; the transistor's rating applies to handling and board assembly, not system-level surge events.
How does the "R" suffix in 2DA1774R-7-F differ from "Q" and "S" variants?
The suffix denotes hFE bin: Q = 120–270, R = 180–390, S = 270–560. All share identical absolute maximum ratings, package, and AEC-Q101 qualification. The R grade provides mid-range gain with tighter distribution, optimizing trade-offs between bias stability and gain variability in production assemblies.
2DA1774R-7-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SOT-523
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Transistor Type:
- PNP
- Current - Collector (Ic) (Max):
- 150 mA
- Voltage - Collector Emitter Breakdown (Max):
- 50 V
- Vce Saturation (Max) @ Ib, Ic:
- 500mV @ 5mA, 50mA
- Current - Collector Cutoff (Max):
- 100nA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 180 @ 1mA, 6V
- Power - Max:
- 150 mW
- Frequency - Transition:
- 140MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-523
2DA1774R-7-F FAQ
1.How can I place an order for 2DA1774R-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for 2DA1774R-7-F 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 2DA1774R-7-F reliable?
The price and inventory of 2DA1774R-7-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 2DA1774R-7-F is usually 5 days.
3.What payment methods are accepted for 2DA1774R-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 2DA1774R-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 2DA1774R-7-F?
2DA1774R-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 2DA1774R-7-F 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 2DA1774R-7-F?
For technical support, including 2DA1774R-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 2DA1774R-7-F requirements.
6.How does Aetrix verify that 2DA1774R-7-F is sourced from the original manufacturer or authorized distributors?
All 2DA1774R-7-F 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 2DA1774R-7-F meets industry standards.
7.What is the process for return or replacement of 2DA1774R-7-F?
All 2DA1774R-7-F units undergo pre-shipment inspection (PSI). If there is an issue with 2DA1774R-7-F, 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 2DA1774R-7-F part is unused and in its original packaging.
Return procedure for 2DA1774R-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
2DA1774R-7-F Tags
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