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Diodes Incorporated BC847C-7-F
- Part No.:
- BC847C-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Bipolar Transistors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BC847C-7-F.pdf
- Description:
- TRANS NPN 45V 0.1A SOT-23-3
- Quantity:
- Payment:
- Shipping:
Inventory:9,883
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Product details
Overview
BC847C-7-F from Diodes Incorporated is an NPN small-signal transistor in SOT23 package, rated for 45 V VCEO, 100 mA IC, and 600 minimum hFE at 2 mA/5 V, optimized for switching and audio-frequency amplification in space-constrained PCBs.
For engineers reviewing the BC847C-7-F datasheet, BC847C-7-F pinout, BC847C-7-F application, or BC847C-7-F equivalent, key selection criteria include DC current gain consistency across temperature, low VCE(sat) at 10 mA/0.5 mA drive, ESD robustness (4 kV HBM), RoHS/Green compliance, and SOT23 thermal performance on 15 mm × 15 mm copper.
Technical Context
This NPN bipolar junction transistor operates with a typical transition frequency fT of 300 MHz at 10 mA/5 V, supporting high-speed switching and narrowband AF amplification. Its base-emitter turn-on voltage VBE(on) is tightly specified at 580–700 mV (2 mA), enabling predictable biasing in discrete amplifier stages.
The device features a maximum power dissipation of 350 mW on 15 mm × 15 mm 1 oz copper, with thermal resistance RθJA = 357 °C/W - critical for thermal management in dense mixed-signal layouts. Cutoff leakage (ICBO ≤ 15 nA at 30 V) ensures stable off-state behavior in battery-powered logic interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 45 V - Maximum collector-emitter voltage before breakdown; supports 3.3 V/5 V rail-switching and 24 V interface protection circuits. |
| IC (continuous) | 100 mA - Safe DC collector current; sufficient for driving LEDs, relays, and small-signal logic buffers without heatsinking. |
| hFE (min) | 420 - Guaranteed DC current gain at 2 mA/5 V; enables stable bias design with minimal base drive current variation. |
| VCE(sat) | 90 mV typ. @ 10 mA/0.5 mA - Low saturation voltage reduces conduction loss in switching applications and improves efficiency in linear regulators. |
| fT | 300 MHz typ. @ 10 mA/5 V - Enables reliable operation up to mid-VHF range; suitable for RF detector preamps and fast digital signal conditioning. |
| ESD HBM | 4,000 V - Robust electrostatic discharge immunity per JEDEC JESD22-A114; reduces handling sensitivity during SMT assembly and field service. |
| RθJA | 357 °C/W - Thermal resistance on 15 mm × 15 mm 1 oz copper; allows accurate junction temperature estimation for reliability modeling. |
Pinout & Package
Package: SOT23 - surface-mount plastic package with matte tin-plated leads, UL 94V-0 rated, moisture sensitivity level 1, weight ≈ 0.008 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Emitter) | E | Current sink node; connected to ground or low-side return path; requires low-impedance trace for stable bias in amplifier configurations. |
| 2 (Base) | B | Control input; driven by microcontroller GPIO or resistor-biased network; sensitive to noise due to high hFE; benefits from local decoupling. |
| 3 (Collector) | C | Current source node; connects to load (e.g., LED anode, relay coil); must be routed away from sensitive analog traces to avoid coupling. |
Key Features
| Feature | Design Value |
|---|---|
| DC current gain grading | hFE = 420–800 (BC847C grade) - tight binning enables consistent gain matching in differential pairs and emitter-follower buffers. |
| Green compound packaging | Halogen- and antimony-free molding (<900 ppm Br/Cl, <1000 ppm Sb) - meets automotive and industrial environmental compliance without sacrificing mechanical robustness. |
| Thermal derating support | Full derating curve provided to 150°C ambient - enables reliable operation in enclosed enclosures or near heat sources without thermal runaway risk. |
| Lead-free & RoHS 3 compliant | Fully EU Directive 2015/863/EU compliant with no purposely added lead - qualifies for medical, consumer, and industrial end-equipment certifications. |
Applications
| LED Driver Circuit | Microcontroller GPIO Expander |
|---|---|
|
Use Scenario: Driving 20 mA indicator LEDs from 3.3 V MCU outputs with current-limiting resistors. IC Role / Device Role / Timing Role: NPN switch providing low-loss current sinking path; base driven directly by GPIO with 10 kΩ pull-up. Use Value: VCE(sat) ≤ 90 mV ensures >97% LED forward voltage utilization and minimizes self-heating at 20 mA. |
Use Scenario: Extending limited GPIO count to control multiple external peripherals via discrete logic-level translation. IC Role / Device Role / Timing Role: Level-shifting buffer between 1.8 V logic and 5 V peripheral enable lines; configured as emitter follower. Use Value: hFE ≥ 420 guarantees full output swing with <1 µA base current draw, preserving MCU drive capability. |
| Audio Pre-amplifier Stage | Power Supply Enable Switch |
|
Use Scenario: Single-transistor common-emitter amplifier for electret microphone signal conditioning in portable audio devices. IC Role / Device Role / Timing Role: Small-signal voltage amplifier with fixed bias network; operates in Class A with 2 mA quiescent current. Use Value: fT = 300 MHz and NF = 2 dB ensure flat 20 Hz–20 kHz response and low noise floor in battery-powered designs. |
Use Scenario: Enabling/disabling 12 V auxiliary rails in industrial controllers using 3.3 V microcontroller signals. IC Role / Device Role / Timing Role: High-side switch driver controlling P-channel MOSFET gate; base driven through current-limiting resistor. Use Value: VCEO = 45 V safely isolates 12 V rail from 3.3 V control domain; IC rating supports >100 mA gate charge delivery. |
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 |
|---|---|---|---|
| BC847BW-7-F | SOT323 package (smaller footprint), same hFE grade and electrical specs; RθJA = 417 °C/W (higher thermal resistance). | Preferred where board area is constrained but thermal margin exists; not suitable for >60 mA continuous loads in still air. | Select when footprint reduction outweighs thermal performance trade-off; verify pad layout matches SOT323 land pattern. |
| MMBT3904LT1G | hFE = 100–300 (lower gain bin), VCEO = 40 V, VCE(sat) = 200 mV typ. @ 10 mA/1 mA; identical SOT23 package. | Better suited for general-purpose switching where gain tolerance is relaxed; higher VCE(sat) increases conduction loss in linear modes. | Choose for cost-sensitive, non-critical switching; avoid in low-noise amplifiers or precision bias networks requiring high hFE. |
Compared with BC847C-7-F, BC847BW-7-F saves PCB area but sacrifices thermal headroom, while MMBT3904LT1G offers lower cost and wider availability at the expense of gain consistency and saturation performance - making BC847C-7-F optimal for gain-stable, low-loss AF and switching roles.
Availability
BC847C-7-F is available at Aetrix Electronics and suitable for LED driver circuits, microcontroller GPIO expansion, audio pre-amplifier stages, and power supply enable switches requiring stable component supply and long-term obsolescence management.
Supply support for BC847C-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, specializing in high-reliability, industry-compliant components for automotive, industrial, and consumer markets.
The BC846–BC848 series belongs to Diodes' standard small-signal transistor product line, designed specifically for cost-effective, high-volume switching and amplification in space-limited applications with stringent environmental compliance requirements.
FAQ
What is the maximum operating temperature for BC847C-7-F?
The BC847C-7-F has an operating junction temperature range of –65 °C to +150 °C. Its storage temperature matches this range. Derating begins above +25 °C ambient, with maximum power dissipation dropping linearly to zero at +150 °C when mounted on 15 mm × 15 mm 1 oz copper - confirmed in Figure 2 of DS11108 Rev. 28-2.
Is BC847C-7-F suitable for automotive applications?
The standard BC847C-7-F is not qualified to AEC-Q101. However, Diodes offers the automotive-grade BC847CQ-7-F (separate datasheet DS11108Q), which includes extended temperature testing, enhanced ESD robustness, and PPAP documentation - required for under-hood or safety-critical vehicle systems.
How does the BC847C grade differ from BC847A and BC847B?
BC847C specifies hFE = 420–800 at 2 mA/5 V, BC847B = 200–450, and BC847A = 110–220. All share identical VCEO (45 V), VCE(sat), and package. The C grade enables tighter bias design in amplifiers and lower base drive in switches without gain-related variability.
Can BC847C-7-F replace BC847B-7-F without circuit modification?
Yes - BC847C-7-F is a direct drop-in replacement for BC847B-7-F in most circuits due to identical pinout, voltage/current ratings, and package. Its higher hFE may reduce required base drive current, potentially improving efficiency in saturated-switch applications without altering resistor values.
BC847C-7-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- 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):
- 15nA
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 420 @ 2mA, 5V
- Power - Max:
- 300 mW
- Frequency - Transition:
- 300MHz
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
BC847C-7-F FAQ
1.How can I place an order for BC847C-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for BC847C-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 BC847C-7-F reliable?
The price and inventory of BC847C-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 BC847C-7-F is usually 5 days.
3.What payment methods are accepted for BC847C-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BC847C-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BC847C-7-F?
BC847C-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BC847C-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 BC847C-7-F?
For technical support, including BC847C-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BC847C-7-F requirements.
6.How does Aetrix verify that BC847C-7-F is sourced from the original manufacturer or authorized distributors?
All BC847C-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 BC847C-7-F meets industry standards.
7.What is the process for return or replacement of BC847C-7-F?
All BC847C-7-F units undergo pre-shipment inspection (PSI). If there is an issue with BC847C-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 BC847C-7-F part is unused and in its original packaging.
Return procedure for BC847C-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BC847C-7-F Tags
-
MMBT3906LT1G
onsemi
-
MMBT3904-7-F
Diodes Incorporated
-
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
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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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