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Infineon Technologies BC856AE6327
- Part No.:
- BC856AE6327
- Manufacturer:
- Infineon Technologies
- Category:
- Single Bipolar Transistors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BC856AE6327.pdf
- Description:
- TRANS PNP 65V 0.1A PG-SOT23-3-1
- Quantity:
- Payment:
- Shipping:
Inventory:42,000
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Product details
Overview
BC856AE6327 from Infineon Technologies is a PNP silicon small-signal transistor designed for audio-frequency input stages and driver circuits. It delivers high DC current gain (hFE = 125–220 at IC = 10 µA), low VCE(sat) (≤250 mV at IC = 10 mA/IB = 0.5 mA), and low noise (1–4 dB NF at 1 kHz), making it suitable for low-level signal amplification in automotive sensor interfaces and industrial control preamplifiers.
For engineers reviewing the BC856AE6327 datasheet, BC856AE6327 pinout, BC856AE6327 application, or BC856AE6327 equivalent, key selection criteria include its AEC-Q101 qualification, SOT23 package compatibility, complementary NPN pairing with BC846A/B/C, and verified performance across −55°C to +150°C junction temperature range.
Technical Context
This PNP transistor operates in linear active and saturation modes, supporting analog amplification and switching functions. Its hFE group A specification ensures predictable gain stability at low collector currents (10 µA–2 mA), while the 65 V VCEO rating enables use in 24 V and 48 V industrial power rail monitoring circuits.
The device exhibits low base-emitter on-voltage (600–650 mV at IC = 2 mA) and tight Ccb (1.5 pF typ.) and Ceb (8 pF typ.) capacitances, enabling stable operation up to 250 MHz fT and minimal phase shift in feedback amplifier topologies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 65 V - supports operation in 48 V automotive and industrial supply domains without breakdown risk |
| hFE (IC = 10 µA) | 125–220 - enables precise biasing in low-current sensor front-ends with minimal base drive |
| VCE(sat) | ≤250 mV @ IC/IB = 10 mA/0.5 mA - reduces conduction loss in discrete level-shifting and current-sinking drivers |
| fT | 250 MHz typ. - maintains gain and linearity in AF and sub-MHz signal conditioning paths |
| Noise Figure | 1–4 dB @ 1 kHz - preserves SNR in microphone preamps and thermocouple amplifiers |
| Ptot | 330 mW @ TS ≤ 71°C - allows continuous operation in compact SOT23 PCB layouts with moderate copper area |
Pinout & Package
BC856AE6327 is housed in a RoHS-compliant SOT23 plastic surface-mount package with standard 3-pin configuration and 1.3 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Base) | Current-controlled input node | Accepts forward-biased base current to enable PNP conduction; requires external pull-up or active drive for switching |
| 2 (Emitter) | High-side current source terminal | Connected to positive supply rail in common-emitter configurations; sets reference for VBE biasing |
| 3 (Collector) | Output current sink node | Delivers amplified load current to ground or low-impedance return path; handles up to 100 mA DC |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics per stress test requirements including HTOL, TC, and ESD |
| Low VCE(sat) | Reduces power dissipation in saturated-switch applications such as LED current sinks and relay drivers |
| Complementary NPN pairing | Matches BC846A/B/C series for push-pull output stages and differential amplifiers |
| Low-noise AF performance | Enables direct coupling in multi-stage audio preamplifiers without added filtering or shielding |
Applications
| Automotive Cabin Sensors | Industrial Current Monitoring |
|---|---|
Use Scenario: Amplifying low-level signals from cabin temperature or humidity sensors in HVAC control modules. IC Role / Device Role / Timing Role: PNP preamplifier stage providing gain and impedance transformation before ADC input. Use Value: High hFE and low noise ensure accurate digitization of µV-level sensor outputs without additional op-amp stages. | Use Scenario: Building shunt-based current sense amplifiers for motor drive fault detection in PLC I/O modules. IC Role / Device Role / Timing Role: Discrete current mirror component enabling bidirectional sensing with matched thermal tracking. Use Value: Tight VBE(ON) tolerance (600–650 mV) and low Ccb minimize offset drift and bandwidth limitation in precision mirror designs. |
| Audio Signal Conditioning | Power Supply Sequencing |
Use Scenario: Implementing discrete Class-A headphone driver stages in portable medical audio devices. IC Role / Device Role / Timing Role: Linear-mode emitter-follower buffer delivering low-output-impedance drive to capacitive loads. Use Value: Low VCE(sat) and high fT preserve transient response and THD < 0.5% across 20 Hz–20 kHz band. | Use Scenario: Controlling power-on reset timing and voltage-rail enable sequencing in FPGA carrier boards. IC Role / Device Role / Timing Role: Discrete BJT switch activating MOSFET gate drivers or LDO EN pins via RC-delayed base bias. Use Value: Predictable hFE group A behavior ensures repeatable turn-on delay across temperature and unit-to-unit variation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PNP small-signal transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BC856B E6327 | Higher hFE range (220–420 at IC = 10 µA); identical VCEO, VCE(sat), and package | Better suited for ultra-low-base-drive applications like battery-powered sensor nodes | Select when higher gain stability at microamp bias currents is required without changing layout |
| MMBT856LT1G | Same VCEO and hFE group A spec, but lower Ptot (225 mW) and non-AEC-Q101 rated | Limited to commercial-grade consumer electronics; not recommended for automotive or industrial environments | Choose only for cost-sensitive, non-automotive designs where qualification traceability is not mandated |
Compared with BC856BE6327 and MMBT856LT1G, BC856AE6327 offers optimal balance of gain predictability, automotive qualification, and thermal robustness-making it preferred for safety-critical sensor interface and power control functions where consistent low-IB operation is essential.
Availability
BC856AE6327 is available at Aetrix Electronics and suitable for automotive cabin electronics, industrial current sensing, audio signal conditioning, and power supply sequencing requiring stable component supply and long-term lifecycle support.
Supply support for BC856AE6327 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 electronics, and industrial control ICs and discrete components.
BC856AE6327 belongs to Infineon's BC846–BC860 family of AEC-Q101-qualified general-purpose transistors, engineered for reliability in harsh-environment signal amplification and switching applications.
FAQ
Is BC856AE6327 pin-compatible with BC846A?
No-BC856AE6327 is PNP while BC846A is NPN; they share identical SOT23 pinout (1=Base, 2=Emitter, 3=Collector) but opposite polarity. Direct substitution requires circuit topology revision, though they are complementary for push-pull or differential pair designs.
What is the maximum operating temperature for BC856AE6327?
The absolute maximum junction temperature is 150°C, and the storage temperature range is −65°C to +150°C. Derated power dissipation begins at case temperatures above 71°C, with full 330 mW rating only valid at TS ≤ 71°C per datasheet Fig. 7.
Does BC856AE6327 support pulsed operation beyond its DC ratings?
Yes-pulse operation up to 200 mA peak is permitted for tp ≤ 10 ms (duty cycle ≤ 2%), provided average power remains within derated Ptot limits. Thermal resistance RthJS ≤ 240 K/W governs safe pulse energy handling in SOT23 mounting.
How does BC856AE6327 differ from BC856AW?
BC856AW uses SOT323 package (smaller footprint, higher thermal resistance), while BC856AE6327 uses SOT23. Both share identical electrical specs and AEC-Q101 qualification, but BC856AE6327 offers better thermal performance (330 mW vs. 250 mW) and mechanical robustness for reflow and handling.
BC856AE6327 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Bulk
- Product Status:
- Active
- Transistor Type:
- PNP
- Current - Collector (Ic) (Max):
- 100 mA
- Voltage - Collector Emitter Breakdown (Max):
- 65 V
- Vce Saturation (Max) @ Ib, Ic:
- 650mV @ 5mA, 100mA
- Current - Collector Cutoff (Max):
- 15nA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 125 @ 2mA, 5V
- Power - Max:
- 330 mW
- Frequency - Transition:
- 250MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-SOT23-3-1
BC856AE6327 FAQ
1.How can I place an order for BC856AE6327 through Aetrix?
Please submit a Request for Quotation (RFQ) for BC856AE6327 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 BC856AE6327 reliable?
The price and inventory of BC856AE6327 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BC856AE6327 is usually 5 days.
3.What payment methods are accepted for BC856AE6327?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BC856AE6327 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BC856AE6327?
BC856AE6327 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BC856AE6327 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 BC856AE6327?
For technical support, including BC856AE6327 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BC856AE6327 requirements.
6.How does Aetrix verify that BC856AE6327 is sourced from the original manufacturer or authorized distributors?
All BC856AE6327 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 BC856AE6327 meets industry standards.
7.What is the process for return or replacement of BC856AE6327?
All BC856AE6327 units undergo pre-shipment inspection (PSI). If there is an issue with BC856AE6327, 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 BC856AE6327 part is unused and in its original packaging.
Return procedure for BC856AE6327:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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