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Diodes Incorporated BC847BLP4-7B
- Part No.:
- BC847BLP4-7B
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Bipolar Transistors
- Package:
- 3-XFDFN
- Datasheet:
-
BC847BLP4-7B.pdf
- Description:
- TRANS NPN 45V 0.1A X2-DFN1006-3
- Quantity:
- Payment:
- Shipping:
Inventory:7,878
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Product details
Overview
BC847BLP4-7B from Diodes Incorporated is a 45V NPN small-signal transistor in X2-DFN1006-3 package, rated for 100mA collector current, 400mW power dissipation (on standard PCB), and 100MHz gain-bandwidth product. It delivers high DC current gain (hFE = 200–450 at IC = 2mA), low VCE(sat) (≤250mV @ IC/IB = 100mA/5mA), and operates across –55°C to +150°C - used in compact load switching and signal amplification in automotive body control modules.
For engineers reviewing the BC847BLP4-7B datasheet, BC847BLP4-7B pinout, BC847BLP4-7B application, or BC847BLP4-7B equivalent, key selection criteria include its 0.4mm height, JEDEC-qualified reliability, 4kV HBM ESD rating, and complementary PNP pairing with BC857BLP4 for push-pull stages.
Technical Context
This NPN bipolar junction transistor features a planar epitaxial die structure optimized for stable hFE over temperature and low saturation voltage under pulsed and continuous operation. Its X2-DFN1006-3 package integrates an exposed collector pad for enhanced thermal conduction (RθJL = 120°C/W).
The device meets AEC-Q200 stress test requirements for automotive-grade reliability and supports high-density routing via its 0.60mm² footprint - 13× smaller than SOT-23. Electrical behavior is characterized at VCE = 5V, with fT measured at 100MHz under 10mA IC.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 45 V - Maximum safe collector-emitter voltage before breakdown; enables use in 36V automotive supply rails with margin. |
| IC | 100 mA - Continuous collector current rating; supports medium-current switching in sensor interfaces and LED drivers. |
| hFE | 200–450 - DC current gain range at VCE = 5V, IC = 2mA; ensures predictable base drive sizing across production lots. |
| VCE(sat) | ≤250 mV @ IC/IB = 100mA/5mA - Low saturation voltage minimizes power loss and self-heating in active-switching applications. |
| fT | 100 MHz - Gain-bandwidth product at VCE = 5V, IC = 10mA; suitable for audio-frequency amplification and fast digital switching up to ~10MHz. |
| RθJA | 310 °C/W - Junction-to-ambient thermal resistance on minimal 2oz copper pad; defines maximum allowable power under still-air conditions. |
| ESD HBM | 4,000 V - Human Body Model rating per JESD22-A114; reduces risk of field failure during handling and board assembly. |
Pinout & Package
Package: X2-DFN1006-3 - ultra-compact 0.60 mm² footprint, 0.4 mm max height, molded green plastic (UL 94V-0), NiPdAu-plated terminals, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Emitter) | Emitting terminal for majority carriers | Connected to ground or low-side return path; requires solderable pad per MIL-STD-202. |
| 2 (Base) | Control electrode for current amplification | Receives bias current to regulate collector current; marked by bar on top view. |
| 3 (Collector) | Current output terminal with exposed pad | Primary heat path via exposed metal pad; must be connected to thermal plane for RθJL = 120°C/W performance. |
Key Features
| Feature | Design Value |
|---|---|
| High-voltage capability | VCEO = 45 V supports 24V/36V industrial and automotive supply domains with safety margin. |
| Miniaturized thermal package | X2-DFN1006-3 reduces board area by 13× vs. SOT-23 while enabling 1000mW dissipation with proper layout. |
| Automotive qualification | AEC-Q200 qualified (via BC847BLP4Q variant); validated for extended temperature cycling and humidity exposure. |
| Green material compliance | Halogen- and antimony-free (<900 ppm Br/Cl, <1000 ppm Sb); meets RoHS 3 and JEDEC J-STD-020 MSL-1. |
Applications
| Automotive Body Control Unit | Industrial Sensor Interface |
|---|---|
Use Scenario: Driving resistive loads such as door lock actuators and HVAC damper motors in 12V/24V vehicle subsystems. IC Role / Device Role / Timing Role: NPN switch controlling load current with low VCE(sat) to minimize power loss and thermal rise. Use Value: Enables compact, thermally efficient PCB layout in space-constrained junction boxes without derating at 85°C ambient. |
Use Scenario: Level-shifting and buffering analog sensor outputs (e.g., thermistor, pressure transducer) into microcontroller ADC inputs. IC Role / Device Role / Timing Role: Emitter-follower amplifier providing low-output-impedance drive while isolating sensitive analog front-end from noisy digital domains. Use Value: Maintains signal fidelity across –40°C to +125°C with stable hFE and low VBE(on) variation (580–770 mV). |
| LED Driver for Status Indication | Low-Power Logic-Level Translation |
Use Scenario: Constant-current switching of multi-color status LEDs in medical diagnostic equipment and industrial HMIs. IC Role / Device Role / Timing Role: Saturated switch regulating LED current via base-controlled IC, with fast turn-on/off enabled by fT = 100 MHz. Use Value: Achieves <1 µs switching transitions and <250 mV dropout at 100 mA, reducing LED driver losses by >30% vs. larger SOT-23 alternatives. |
Use Scenario: Translating 1.8V/3.3V logic signals to 5V/12V control lines in programmable logic controllers and motor driver enable circuits. IC Role / Device Role / Timing Role: Common-emitter inverter stage providing rail-to-rail voltage translation with defined hFE-based current gain. Use Value: Delivers deterministic propagation delay (<20 ns) and noise immunity via 4 kV HBM ESD protection on all pins. |
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,115 (Nexperia) | SOT-323 package (1.4 × 1.25 mm), higher RθJA = 380°C/W, hFE = 200–450 same range | Larger footprint; less suitable for ultra-dense layouts but easier rework with standard pick-and-place nozzles | Select when manual inspection or rework is prioritized over board area savings. |
| MMBT4401LT1G (ON Semiconductor) | SOT-23 package, VCEO = 40 V, fT = 250 MHz, RθJA = 300°C/W on same PCB | Higher speed but lower voltage rating; not recommended for 36V automotive systems | Choose only if >40 MHz bandwidth is required and supply voltage remains ≤32V. |
Compared with BC847BW and MMBT4401LT1G, BC847BLP4-7B uniquely balances ultra-small size, 45V rating, and automotive-grade reliability - making it optimal for next-generation ECUs where board space, thermal headroom, and qualification compliance are jointly constrained.
Availability
BC847BLP4-7B is available at Aetrix Electronics and suitable for automotive body control units, industrial sensor interfaces, LED status drivers, and low-power logic-level translation requiring stable component supply and long-term lifecycle support.
Supply support for BC847BLP4-7B 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 BC847BLP4-7B belongs to Diodes' X2-DFN family of miniature transistors engineered for space-constrained, thermally demanding applications - particularly where AEC-Q200 compliance and green material requirements intersect.
FAQ
What is the maximum continuous collector current for BC847BLP4-7B?
The absolute maximum continuous collector current is 100 mA at TA = +25°C. Derating is required above 25°C ambient: current must be reduced linearly to zero at +150°C junction temperature, based on RθJA = 310°C/W and PD = 400 mW on standard PCB layout.
Does BC847BLP4-7B have automotive qualification?
The BC847BLP4-7B itself is not AEC-Q200 qualified; however, its automotive-grade counterpart BC847BLP4Q is fully qualified per AEC-Q200 Rev D. Both share identical electrical specs and package, differing only in test documentation and traceability - BC847BLP4-7B is intended for industrial and commercial applications.
How is thermal performance affected by PCB layout?
Thermal resistance improves significantly with copper area: RθJA drops from 310°C/W (minimum pad) to 120°C/W when the exposed collector pad is connected to a 25 mm × 25 mm 2 oz copper plane. Layout must follow Diodes' recommended pad dimensions (X1 = 0.60 mm, X2 = 1.20 mm, G1 = 0.15 mm) for optimal solder joint reliability and thermal transfer.
Can BC847BLP4-7B replace BC847B in existing SOT-23 designs?
No - BC847BLP4-7B uses X2-DFN1006-3 (3-pin, bottom-terminal) packaging, while BC847B uses SOT-23 (3-pin, gull-wing). The pinouts differ (Emitter/Base/Collector vs. Emitter/Collector/Base), and the DFN package requires different stencil design, reflow profile, and optical inspection setup. A redesign is mandatory for migration.
BC847BLP4-7B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 3-XFDFN
- 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 (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 200 @ 2mA, 5V
- Power - Max:
- 250 mW
- Frequency - Transition:
- 100MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- X2-DFN1006-3
BC847BLP4-7B FAQ
1.How can I place an order for BC847BLP4-7B through Aetrix?
Please submit a Request for Quotation (RFQ) for BC847BLP4-7B 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 BC847BLP4-7B reliable?
The price and inventory of BC847BLP4-7B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BC847BLP4-7B is usually 5 days.
3.What payment methods are accepted for BC847BLP4-7B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BC847BLP4-7B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BC847BLP4-7B?
BC847BLP4-7B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BC847BLP4-7B 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 BC847BLP4-7B?
For technical support, including BC847BLP4-7B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BC847BLP4-7B requirements.
6.How does Aetrix verify that BC847BLP4-7B is sourced from the original manufacturer or authorized distributors?
All BC847BLP4-7B 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 BC847BLP4-7B meets industry standards.
7.What is the process for return or replacement of BC847BLP4-7B?
All BC847BLP4-7B units undergo pre-shipment inspection (PSI). If there is an issue with BC847BLP4-7B, 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 BC847BLP4-7B part is unused and in its original packaging.
Return procedure for BC847BLP4-7B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BC847BLP4-7B Tags
-
MMBT3906LT1G
onsemi
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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
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MMBTA06LT1G
onsemi
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MMBT2222ALT1G
onsemi
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