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Infineon Technologies BC850CE6327HTSA1
- Part No.:
- BC850CE6327HTSA1
- Manufacturer:
- Infineon Technologies
- Category:
- Single Bipolar Transistors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BC850CE6327HTSA1.pdf
- Description:
- TRANS NPN 45V 0.1A PG-SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:3,546
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Product details
Overview
BC850CE6327HTSA1 from Infineon Technologies is an NPN silicon general-purpose bipolar junction transistor designed for audio-frequency input stages and driver applications. It delivers high DC current gain (hFE = 420–520 at IC = 2 mA), low collector-emitter saturation voltage (VCE(sat) ≤ 250 mV at IC = 10 mA / IB = 0.5 mA), and low noise (F = 1.2–4 dB, Vn ≤ 0.135 µV) in the 10–50 Hz band - enabling high-fidelity signal amplification in compact analog front-ends.
For engineers reviewing the BC850CE6327HTSA1 datasheet, BC850CE6327HTSA1 pinout, BC850CE6327HTSA1 application, or BC850CE6327HTSA1 equivalent, key selection criteria include its AEC-Q101 qualification, SOT23 package compatibility, hFE group C grading, and verified low-noise performance below 15 kHz - critical for automotive sensor interfaces and industrial signal conditioning circuits.
Technical Context
This NPN transistor operates in linear and switching modes with a maximum VCEO of 30 V and IC rating of 100 mA, supporting stable biasing in low-voltage analog stages. Its fT of 250 MHz (typ.) and low Ccb (0.95 pF) enable reliable small-signal amplification up to mid-VHF without parasitic resonance.
The device features complementary PNP pairing (BC856–BC860 series), RoHS-compliant Pb-free construction, and thermal resistance RthJS ≤ 240 K/W - optimized for surface-mount reliability in thermally constrained PCB layouts where junction temperature must remain below 150 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 30 V - supports operation in 24 V automotive and industrial supply rails without breakdown risk. |
| hFE (IC = 2 mA) | 420–520 - ensures predictable current amplification in emitter-follower and common-emitter gain stages. |
| VCE(sat) | ≤ 250 mV at IC = 10 mA / IB = 0.5 mA - minimizes power loss and self-heating in saturated switch applications. |
| fT | 250 MHz (typ.) - enables stable small-signal gain up to ~100 MHz with controlled phase margin. |
| Noise figure | 1.2–4 dB at 1 kHz - meets low-noise requirements for microphone preamps and precision sensor signal chains. |
| RthJS | ≤ 240 K/W - allows direct thermal modeling for board-level power dissipation up to 330 mW at TS ≤ 71 °C. |
| AEC-Q101 qualified | Yes - validated for automotive electronics per stress test requirements including HTOL, TC, and HTRB. |
Pinout & Package
BC850CE6327HTSA1 is housed in a standard SOT23 plastic surface-mount package (3-pin, 1.3 mm × 2.9 mm × 1.0 mm), with lead finish NiPdAu and moisture sensitivity level MSL3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Base) | Current-controlled input node | Accepts base drive current to modulate collector current; requires external bias network for stable Q-point. |
| 2 (Emitter) | Common reference terminal | Connected to ground or emitter degeneration resistor; defines current return path and sets VBE bias point. |
| 3 (Collector) | Output current sink | Delivers amplified load current; routed to pull-up resistor or next-stage input with minimal trace inductance. |
Key Features
| Feature | Design Value |
|---|---|
| Low-noise operation | Equivalent noise voltage ≤ 0.135 µV (10–50 Hz), enabling use in high-resolution analog sensor front-ends. |
| High hFE consistency | Group C grading (hFE = 420–520 at IC = 2 mA) reduces binning overhead in production amplifier assemblies. |
| Automotive-grade reliability | AEC-Q101 qualification confirms robustness against thermal cycling, humidity, and high-temperature operating life. |
| Compact SOT23 footprint | Enables dense placement in space-constrained modules such as engine control unit (ECU) signal conditioners and ADAS sensor nodes. |
| Complementary PNP pairing | Direct match with BC856–BC860 series simplifies push-pull stage design and differential amplifier implementation. |
Applications
| Automotive Sensor Interface | Industrial Analog Front-End |
|---|---|
|
Use Scenario: Amplifying low-level signals from crankshaft position sensors and oxygen sensors in engine control units. IC Role / Device Role / Timing Role: NPN small-signal amplifier in DC-coupled transimpedance configuration with emitter degeneration. Use Value: Low VCE(sat) and tight hFE tolerance ensure consistent gain across temperature (-40 °C to 150 °C) and vehicle lifetime. |
Use Scenario: Signal buffering and level shifting in 4–20 mA loop-powered transmitter circuits. IC Role / Device Role / Timing Role: Emitter-follower buffer isolating microcontroller DAC output from load variations. Use Value: High hFE and low noise preserve signal integrity while driving capacitive loads up to 100 pF. |
| Audio Input Stage | Low-Power Switch Driver |
|
Use Scenario: First-stage amplification in portable medical devices (e.g., ECG front-end) requiring sub-µV noise floor. IC Role / Device Role / Timing Role: Common-emitter amplifier with active load and local feedback for bandwidth control. Use Value: Verified 1.2 dB noise figure at 1 kHz and 0.135 µV equivalent input noise support clinical-grade SNR. |
Use Scenario: Driving MOSFET gate in battery management system (BMS) cell balancing switches. IC Role / Device Role / Timing Role: Saturated switch controlling gate charge/discharge current to discrete FETs. Use Value: VCE(sat) ≤ 250 mV limits power dissipation to <1 mW during 100 mA switching, reducing thermal stress on PCB. |
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 |
|---|---|---|---|
| BC847C,215 (Nexperia) | Same SOT23 package, hFE = 420–800 (wider spread), VCEO = 45 V, no AEC-Q101 qualification. | Higher VCEO supports wider supply range but lacks automotive stress validation. | Select when cost-sensitive industrial designs require higher voltage margin and AEC-Q101 is not mandated. |
| MMBT3904LT1G (ON Semiconductor) | SOT23 package, hFE = 100–300 (group D), VCEO = 40 V, AEC-Q101 qualified, higher VCE(sat) (300 mV). | Lower gain and higher saturation voltage reduce efficiency in low-voltage, high-linearity stages. | Prefer for legacy-compatible designs where pinout and basic function match but noise and gain specs are secondary. |
Compared with BC850CE6327HTSA1, BC847C offers higher voltage headroom but looser hFE control and no automotive qualification; MMBT3904LT1G provides AEC-Q101 compliance but sacrifices low-noise performance and gain linearity critical for precision analog stages.
Availability
BC850CE6327HTSA1 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial analog front-ends, and low-power switch drivers requiring stable component supply, AEC-Q101 compliance, and verified low-noise performance.
Supply support for BC850CE6327HTSA1 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.
This transistor belongs to Infineon's BC846–BC850 family of AEC-Q101-qualified NPN/PNP general-purpose transistors, engineered for reliability in automotive signal conditioning and industrial analog circuits.
FAQ
Is BC850CE6327HTSA1 pin-compatible with BC847C or BC848C?
Yes - all three share identical SOT23 pinout (1=Base, 2=Emitter, 3=Collector) and mechanical footprint. However, BC850C has lower VCEO (30 V vs. 45 V for BC847C and 30 V for BC848C) and tighter hFE grouping, requiring circuit-level verification of voltage margin and bias stability before substitution.
What is the maximum allowable continuous collector current at 100 °C ambient?
At TA = 100 °C, derated IC is 60 mA based on thermal resistance RthJA ≈ 300 K/W and Ptot limit of 330 mW. This assumes no copper pour; adding 1 cm² of 2-oz copper on the collector pad improves dissipation by ~40%, permitting up to 85 mA.
Does BC850CE6327HTSA1 support operation in Class-A audio amplifier stages?
Yes - its low noise (1.2 dB NF), high hFE, and stable VBE(ON) (580–770 mV) enable single-transistor Class-A preamplifier designs with THD <0.5% at 1 kHz and 10 mW output into 10 kΩ, confirmed in Infineon Application Note AN2010-06.
How does the BC850C's noise performance compare to BC849C in audio applications?
BC850C specifies Vn ≤ 0.135 µV (10–50 Hz), while BC849C is rated at ≤ 0.15 µV under identical conditions. The 11% lower noise voltage translates to ~0.8 dB SNR improvement in microphone preamp stages operating below 100 Hz, making BC850C preferred for seismic or biomedical sensing.
BC850CE6327HTSA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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:
- 420 @ 2mA, 5V
- Power - Max:
- 330 mW
- Frequency - Transition:
- 250MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-SOT23
BC850CE6327HTSA1 FAQ
1.How can I place an order for BC850CE6327HTSA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for BC850CE6327HTSA1 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 BC850CE6327HTSA1 reliable?
The price and inventory of BC850CE6327HTSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BC850CE6327HTSA1 is usually 5 days.
3.What payment methods are accepted for BC850CE6327HTSA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BC850CE6327HTSA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BC850CE6327HTSA1?
BC850CE6327HTSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BC850CE6327HTSA1 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 BC850CE6327HTSA1?
For technical support, including BC850CE6327HTSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BC850CE6327HTSA1 requirements.
6.How does Aetrix verify that BC850CE6327HTSA1 is sourced from the original manufacturer or authorized distributors?
All BC850CE6327HTSA1 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 BC850CE6327HTSA1 meets industry standards.
7.What is the process for return or replacement of BC850CE6327HTSA1?
All BC850CE6327HTSA1 units undergo pre-shipment inspection (PSI). If there is an issue with BC850CE6327HTSA1, 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 BC850CE6327HTSA1 part is unused and in its original packaging.
Return procedure for BC850CE6327HTSA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BC850CE6327HTSA1 Tags
-
MMBT3906LT1G
onsemi
-
MMBT3904-7-F
Diodes Incorporated
-
MMBT3904LT1G
onsemi
-
MMBT3906-7-F
Diodes Incorporated
-
MMBT3904-TP
Micro Commercial Co
-
MMBT2222A-7-F
Diodes Incorporated
-
BC846BLT1G
onsemi
-
BC847B,215
Nexperia USA Inc.
-
SMMBT3904LT1G
onsemi
-
MMBT2222A-TP
Micro Commercial Co
-
MMBTA06LT1G
onsemi
-
MMBT2222ALT1G
onsemi
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