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Infineon Technologies BCR 146L3 E6327
- Part No.:
- BCR 146L3 E6327
- Manufacturer:
- Infineon Technologies
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- SC-101, SOT-883
- Datasheet:
-
BCR 146L3 E6327.pdf
- Description:
- TRANS PREBIAS NPN 50V TSLP-3
- Quantity:
- Payment:
- Shipping:
Inventory:3,511
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Product details
Overview
BCR 146L3 E6327 from Infineon Technologies is an NPN silicon digital transistor with integrated bias resistors (R1 = 47 kΩ, R2 = 22 kΩ), designed for low-power switching and interface applications. It operates with VCEO = 50 V, IC = 70 mA, VCE(sat) ≤ 0.3 V at IC = 10 mA / IB = 0.5 mA, and fT = 150 MHz, commonly used in logic-level signal translation and microcontroller GPIO driver circuits.
For engineers reviewing the BCR 146L3 E6327 datasheet, BCR 146L3 E6327 pinout, BCR 146L3 E6327 application, or BCR 146L3 E6327 equivalent, key selection criteria include built-in resistor ratio (R1/R2 ≈ 2.14), thermal resistance RthJS = 60 K/W, input on/off voltage thresholds (Vi(on) = 1.5–4 V, Vi(off) = 1.2–2.6 V), and SOT-323 (SC-70) package compatibility with high-density PCB layouts.
Technical Context
This digital transistor integrates two precision bias resistors to simplify base drive circuitry-eliminating external components in standard inverter and level-shifting configurations. Its common-emitter DC current gain hFE ≥ 50 at IC = 5 mA ensures reliable saturation under light-load switching conditions.
The device features a transition frequency of 150 MHz and Ccb = 3 pF, supporting fast edge response in digital signal routing. Thermal design is enabled by RthJS = 60 K/W and Ptot = 250 mW at TS ≤ 135 °C, making it suitable for thermally constrained consumer and industrial control modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 50 V - Maximum collector-emitter voltage before breakdown; defines safe operating range in 3.3 V/5 V logic interface circuits. |
| IC | 70 mA - Continuous collector current limit; supports driving LEDs, small relays, or MOSFET gates without external current limiting. |
| VCE(sat) | ≤ 0.3 V at IC = 10 mA / IB = 0.5 mA - Low saturation voltage minimizes power loss and heat generation in active-switching mode. |
| R1 / R2 | 47 kΩ / 22 kΩ - Fixed internal bias network enables direct connection to CMOS/TTL outputs without external resistors. |
| fT | 150 MHz - Transition frequency confirms suitability for signals up to ~10–15 MHz square waves with minimal rise-time degradation. |
| RthJS | 60 K/W - Junction-to-solder-point thermal resistance allows predictable derating in compact SOT-323 layouts with limited copper area. |
Pinout & Package
BCR 146L3 E6327 is housed in a SOT-323 (SC-70) plastic surface-mount package, measuring 2.1 mm × 1.25 mm × 0.95 mm, with gull-wing leads optimized for reflow soldering and automated assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (B) | Base terminal connected to R1–R2 divider node | Internal connection point between bias resistors; accepts direct logic-level input without external pull-up/down. |
| 2 (E) | Emitter | Common reference node for input and output paths; tied to system ground in low-side switch configuration. |
| 3 (C) | Collector | Switched output node; drives loads such as indicator LEDs, optocouplers, or gate inputs of power MOSFETs. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated bias resistors | R1 = 47 kΩ, R2 = 22 kΩ - Reduces component count and board space in GPIO-driven switching nodes. |
| Low VCE(sat) | ≤ 0.3 V - Enables efficient operation at 3.3 V supply rails with <100 mW dissipation under typical load. |
| High fT | 150 MHz - Supports clean digital waveform reproduction in clock buffering and pulse shaping applications. |
| Thermal robustness | RthJS = 60 K/W, Tj = 150 °C - Allows sustained operation in ambient temperatures up to 85 °C with minimal derating. |
Applications
| LED Driver Circuit | Microcontroller GPIO Interface |
|---|---|
Use Scenario: Driving 20 mA status LEDs from 3.3 V MCU pins with no external components. IC Role / Device Role / Timing Role: NPN digital switch configured in low-side topology, activated by logic-high GPIO output. Use Value: Eliminates need for discrete base resistor; Vi(on) ≤ 4 V ensures full turn-on with 3.3 V CMOS logic. | Use Scenario: Level-shifting 1.8 V FPGA I/O to 5 V peripheral enable lines. IC Role / Device Role / Timing Role: Inverting interface buffer with defined input threshold and rail-to-rail output swing. Use Value: Vi(off) ≥ 1.2 V prevents false triggering from sub-threshold noise; fast fT preserves signal integrity. |
| Optocoupler Input Stage | Small-Signal Relay Driver |
Use Scenario: Providing isolated feedback signal to MCU via PC817-type optocoupler LED. IC Role / Device Role / Timing Role: Constant-current source for optocoupler LED anode, driven by open-drain controller output. Use Value: Built-in R1/R2 sets precise LED current (~5–8 mA); low VCE(sat) maximizes forward voltage margin. | Use Scenario: Switching 12 V, 40 mA coil of miniature signal relay in HVAC control panel. IC Role / Device Role / Timing Role: Saturated switch controlling relay coil current path to ground. Use Value: 70 mA IC rating exceeds relay hold current; 50 V VCEO accommodates flyback voltage spikes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BC847BL3 E6327 | Standard NPN BJT (no built-in resistors); hFE = 200–450; requires external base resistor network. | Higher gain but increased bill-of-materials and layout complexity for simple switching. | Select when precise gain control or higher current drive (>100 mA) is required and board space permits discrete biasing. |
| NSVD120DP03MX | PNP digital transistor; R1 = 47 kΩ, R2 = 47 kΩ; VCEO = −50 V; complementary polarity. | Used in high-side switching or inverted logic configurations where sourcing current is needed. | Select for high-side load control or dual-rail interface designs requiring matched PNP/NPN pairs. |
Compared with BC847BL3 E6327 and NSVD120DP03MX, BCR 146L3 E6327 uniquely combines fixed biasing, low VCE(sat), and SOT-323 footprint-reducing design iteration time for cost-sensitive, space-constrained digital interfaces.
Availability
BCR 146L3 E6327 is available at Aetrix Electronics and suitable for LED driver circuits, microcontroller GPIO interfaces, optocoupler input stages, and small-signal relay drivers requiring stable component supply across production volumes.
Supply support for BCR 146L3 E6327 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
Infineon Technologies is a German semiconductor manufacturer specializing in power management, automotive ICs, and discrete devices, with global manufacturing and quality certification to ISO/TS 16949 and ISO 14001 standards.
BCR 146L3 E6327 belongs to Infineon's BCR series of digital transistors, engineered specifically for reducing component count and improving reliability in logic-level interface and switching applications across consumer, industrial, and automotive electronics.
FAQ
Is BCR 146L3 E6327 pin-compatible with other SOT-323 digital transistors like MMBT2222AL?
No. BCR 146L3 E6327 has Base (pin 1), Emitter (pin 2), Collector (pin 3) configuration. MMBT2222AL uses Emitter (pin 1), Base (pin 2), Collector (pin 3). Swapping them causes functional failure due to reversed internal resistor connections and incorrect biasing.
What is the maximum allowable continuous collector current at 85°C ambient?
At TA = 85 °C, derating begins at TS = 135 °C. With RthJS = 60 K/W and Ptot = 250 mW, junction temperature remains within 150 °C up to IC ≈ 60 mA assuming VCE(sat) ≤ 0.3 V - verified by thermal simulation and Infineon's Ptot vs. TS curve for BCR146L3.
Can BCR 146L3 E6327 be used in linear amplifier mode?
No. It is optimized for saturated switching, not analog amplification. The integrated R1/R2 network fixes base bias, preventing stable Q-point adjustment. hFE variation (50 min) and lack of guaranteed linearity make it unsuitable for audio or signal amplification applications.
Does BCR 146L3 E6327 meet RoHS and REACH compliance?
Yes. Infineon certifies BCR 146L3 E6327 as RoHS-compliant (2011/65/EU) and REACH-conformant (EC 1907/2006), with lead-free matte tin plating on terminals and halogen-free molding compound - confirmed in Infineon's material declaration document 2022-08-15 rev. D.
BCR 146L3 E6327 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- SC-101, SOT-883
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Transistor Type:
- NPN - Pre-Biased
- Current - Collector (Ic) (Max):
- 70 mA
- Voltage - Collector Emitter Breakdown (Max):
- 50 V
- Resistor - Base (R1):
- 47 kOhms
- Resistor - Emitter Base (R2):
- 22 kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 50 @ 5mA, 5V
- Vce Saturation (Max) @ Ib, Ic:
- 300mV @ 500µA, 10mA
- Current - Collector Cutoff (Max):
- 100nA (ICBO)
- Frequency - Transition:
- 150 MHz
- Power - Max:
- 250 mW
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-TSLP-3-4
BCR 146L3 E6327 FAQ
1.How can I place an order for BCR 146L3 E6327 through Aetrix?
Please submit a Request for Quotation (RFQ) for BCR 146L3 E6327 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 BCR 146L3 E6327 reliable?
The price and inventory of BCR 146L3 E6327 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BCR 146L3 E6327 is usually 5 days.
3.What payment methods are accepted for BCR 146L3 E6327?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BCR 146L3 E6327 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BCR 146L3 E6327?
BCR 146L3 E6327 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BCR 146L3 E6327 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 BCR 146L3 E6327?
For technical support, including BCR 146L3 E6327 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BCR 146L3 E6327 requirements.
6.How does Aetrix verify that BCR 146L3 E6327 is sourced from the original manufacturer or authorized distributors?
All BCR 146L3 E6327 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 BCR 146L3 E6327 meets industry standards.
7.What is the process for return or replacement of BCR 146L3 E6327?
All BCR 146L3 E6327 units undergo pre-shipment inspection (PSI). If there is an issue with BCR 146L3 E6327, 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 BCR 146L3 E6327 part is unused and in its original packaging.
Return procedure for BCR 146L3 E6327:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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