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Diodes Incorporated BC847AW-7-F
- Part No.:
- BC847AW-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Bipolar Transistors
- Package:
- SC-70, SOT-323
- Datasheet:
-
BC847AW-7-F.pdf
- Description:
- TRANS NPN 45V 0.1A SOT-323
- Quantity:
- Payment:
- Shipping:
Inventory:1,567
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Product details
Overview
BC847AW-7-F from Diodes Incorporated is an NPN small-signal transistor in SOT323 package, rated for 45 V VCEO, 100 mA IC, and 200 mW power dissipation, with DC current gain (hFE) of 110–220 at 2 mA/5 V - used in low-power switching and audio-frequency amplification stages of portable consumer electronics and industrial sensor interfaces.
For engineers reviewing the BC847AW-7-F datasheet, BC847AW-7-F pinout, BC847AW-7-F application, or BC847AW-7-F equivalent, key selection criteria include VCEO/VCBO ratings, hFE grouping (Band A), thermal derating behavior, and SOT323 footprint compatibility in space-constrained PCB layouts.
Technical Context
This transistor operates as a general-purpose NPN switch or linear amplifier with fixed-emitter biasing capability. Its 45 V collector-emitter breakdown and 50 V collector-base rating support operation in 24 V rail systems with margin, while its 100 mA continuous collector current suits signal-level load driving.
The device exhibits 90–250 mV VCE(sat) at IC = 10 mA/IB = 0.5 mA and 200–600 mV under high-current saturation (IC = 100 mA), enabling predictable on-state loss in discrete logic-level switching circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 45 V - Maximum safe collector-emitter voltage before avalanche; supports 24 V system rails with 88% headroom. |
| IC (cont.) | 100 mA - Continuous collector current limit; defines max load drive capability in switching mode. |
| hFE (A group) | 110–220 @ 2 mA/5 V - Predictable DC gain band for stable bias design in amplifier or saturated switch configurations. |
| PD | 200 mW @ TA = 25°C - Power handling at room ambient; derates to zero at ~150°C per RθJA = 625°C/W. |
| VBE(on) | 580–700 mV @ 2 mA - Base turn-on threshold; enables reliable activation with standard CMOS/TTL logic outputs. |
| fT | 100–300 MHz - Gain-bandwidth product; sufficient for AF amplification and low-MHz digital signal conditioning. |
Pinout & Package
Package: SOT323 - ultra-small surface-mount plastic package (2.15 mm × 2.10 mm × 0.95 mm), moisture sensitivity level 1, matte tin-plated leads, 0.006 g weight.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Emitter) | E | Current sink terminal; connects to ground or low-side return path in common-emitter configurations. |
| 2 (Base) | B | Control input; requires ~0.6 V forward bias and ~0.5 mA base drive for 10 mA collector conduction. |
| 3 (Collector) | C | Current source terminal; ties to load and positive supply in low-side switch or amplifier output stage. |
Key Features
| Feature | Design Value |
|---|---|
| Lead-free & RoHS 3 compliant | Fully compliant with EU Directive 2015/863/EU; <900 ppm Br/Cl, <1000 ppm Sb - meets automotive and medical regulatory requirements. |
| SOT323 footprint | 0.65 mm pitch, 2.15 mm × 2.10 mm body - enables high-density placement in wearables, IoT nodes, and compact power management modules. |
| ESD robustness | 4 kV HBM, 1 kV CDM - withstands handling and board assembly without external protection in controlled environments. |
| Thermal stability | RθJA = 625°C/W on minimal FR4 pad; allows operation up to +150°C junction temperature with proper layout. |
Applications
| USB Port Protection Circuit | Industrial Sensor Signal Conditioning |
|---|---|
|
Use Scenario: Discrete overvoltage clamp and enable switch for USB 2.0 data line protection ICs. IC Role / Device Role / Timing Role: NPN switch controlling enable path to TVS array; biased by microcontroller GPIO. Use Value: Low VCE(sat) (90 mV) minimizes voltage drop in enable path; SOT323 saves board area near connector. |
Use Scenario: Amplifying millivolt-level thermocouple or RTD bridge outputs in programmable logic controller analog input modules. IC Role / Device Role / Timing Role: First-stage DC-coupled amplifier with fixed-gain bias network. Use Value: Tight hFE band (110–220) ensures consistent gain across production units; low noise figure (10 dB) preserves SNR. |
| Automotive Cabin LED Driver | Low-Power Wireless Transceiver Bias Control |
|
Use Scenario: Driving 20 mA indicator LEDs in vehicle infotainment control panels with 12 V supply. IC Role / Device Role / Timing Role: Saturated switch with base resistor network; driven by CAN/LIN interface MCU pins. Use Value: 45 V VCEO accommodates load dump transients; AEC-Q101 qualified variants available for full automotive use. |
Use Scenario: Enabling/disabling RF front-end LNA and PA bias rails in sub-GHz ISM band modules. IC Role / Device Role / Timing Role: Low-leakage enable switch isolating bias paths during sleep mode. Use Value: 20 nA ICBO at 30 V ensures <1 µA standby current; fast fT avoids switching delay in wake-up sequences. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NPN small-signal transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BC847B-7-F | hFE = 200–450 (Band B); otherwise identical ratings and package. | Higher gain enables lower base drive current but reduces gain consistency across temperature. | Select when precise bias point control is less critical than minimizing base current consumption. |
| MMBT3904LT1G | VCEO = 40 V (vs. 45 V); hFE = 100–300; same SOT23 package (not SOT323). | Requires PCB footprint redesign; slightly lower voltage margin limits use in 24 V industrial systems. | Choose only if SOT23 is already standardized in design and 40 V rating suffices. |
Compared with BC847B-7-F, BC847AW-7-F offers tighter hFE tolerance for stable biasing; versus MMBT3904LT1G, it provides higher VCEO and smaller SOT323 footprint - critical for miniaturized, high-reliability signal-path designs.
Availability
BC847AW-7-F is available at Aetrix Electronics and suitable for USB port protection, industrial sensor signal conditioning, and automotive cabin LED driver applications requiring stable component supply, long-term lifecycle support, and traceable green manufacturing compliance.
Supply support for BC847AW-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 sales operations across Asia, Europe, and North America.
This part belongs to Diodes' BC846–BC848 family of general-purpose NPN transistors, engineered for cost-sensitive, high-volume applications demanding reliability, lead-free compliance, and automated assembly compatibility.
FAQ
What is the maximum operating temperature for BC847AW-7-F?
The BC847AW-7-F has an operating junction temperature range of –65°C to +150°C. At ambient temperatures above 25°C, power dissipation must be linearly derated using RθJA = 625°C/W - for example, at 75°C ambient, max allowable PD drops to 100 mW.
Is BC847AW-7-F suitable for automotive applications?
The BC847AW-7-F itself is not AEC-Q101 qualified, but Diodes offers automotive-grade versions (e.g., BC847AWQ-7-F) with PPAP documentation, IATF 16949 manufacturing, and extended temperature validation. Standard BC847AW-7-F may be used in non-safety-critical cabin modules with internal qualification.
How does the SOT323 package compare to SOT23 for this transistor?
SOT323 is 30% smaller than SOT23 (2.15 mm × 2.10 mm vs. 2.9 mm × 1.3 mm), with finer 0.65 mm lead pitch. It supports higher board density but requires more precise stencil and placement control. Thermal resistance is higher (RθJA = 625°C/W vs. ~300°C/W for SOT23), limiting high-power use.
What is the meaning of the 'A' suffix in BC847AW-7-F?
The 'A' denotes Band A DC current gain grouping: hFE = 110–220 at VCE = 5 V and IC = 2 mA. This tighter spread improves predictability in bias-sensitive amplifier designs compared to Band B (200–450) or Band C (420–800) variants.
BC847AW-7-F 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
- Current - Collector (Ic) (Max):
- 100 mA
- Voltage - Collector Emitter Breakdown (Max):
- 45 V
- Vce Saturation (Max) @ Ib, Ic:
- 600mV @ 5mA, 100mA
- Current - Collector Cutoff (Max):
- 20nA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 110 @ 2mA, 5V
- Power - Max:
- 200 mW
- Frequency - Transition:
- 300MHz
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-323
BC847AW-7-F FAQ
1.How can I place an order for BC847AW-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for BC847AW-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 BC847AW-7-F reliable?
The price and inventory of BC847AW-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 BC847AW-7-F is usually 5 days.
3.What payment methods are accepted for BC847AW-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BC847AW-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BC847AW-7-F?
BC847AW-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BC847AW-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 BC847AW-7-F?
For technical support, including BC847AW-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BC847AW-7-F requirements.
6.How does Aetrix verify that BC847AW-7-F is sourced from the original manufacturer or authorized distributors?
All BC847AW-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 BC847AW-7-F meets industry standards.
7.What is the process for return or replacement of BC847AW-7-F?
All BC847AW-7-F units undergo pre-shipment inspection (PSI). If there is an issue with BC847AW-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 BC847AW-7-F part is unused and in its original packaging.
Return procedure for BC847AW-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BC847AW-7-F Tags
-
MMBT3906LT1G
onsemi
-
MMBT3904-7-F
Diodes Incorporated
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MMBT3904LT1G
onsemi
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MMBT3906-7-F
Diodes Incorporated
-
MMBT3904-TP
Micro Commercial Co
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MMBT2222A-7-F
Diodes Incorporated
-
BC846BLT1G
onsemi
-
BC847B,215
Nexperia USA Inc.
-
SMMBT3904LT1G
onsemi
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MMBT2222A-TP
Micro Commercial Co
-
MMBTA06LT1G
onsemi
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MMBT2222ALT1G
onsemi
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