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Home > Products > Discrete Semiconductor Products > Transistors > Bipolar (BJT) > Single Bipolar Transistors

Infineon Technologies BC859CE6327HTSA1

Name: BC859CE6327HTSA1
Brand: Infineon Technologies
SKU: BC859CE6327HTSA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BC859CE6327HTSA1

Manufacturer:: Infineon Technologies

Category:: Single Bipolar Transistors

Package:: TO-236-3, SC-59, SOT-23-3

Datasheet:: BC859CE6327HTSA1.pdf

Description:: TRANS PNP 30V 0.1A PG-SOT23

Quantity:: RFQ Add To RFQ list

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Product details

Overview

BC859CE6327HTSA1 from Infineon Technologies is a PNP silicon small-signal transistor designed for audio-frequency input stages and driver circuits. It features V_CEO = 30 V, h_FE = 420–520 (at I_C = 2 mA), V_CE(sat) ≤ 300 mV (I_C = 10 mA, I_B = 0.5 mA), f_T = 250 MHz, and operates in SOT-23 package. It is used in low-noise preamplifier stages of automotive cabin audio systems.

For engineers reviewing the BC859CE6327HTSA1 datasheet, BC859CE6327HTSA1 pinout, BC859CE6327HTSA1 application, or BC859CE6327HTSA1 equivalent, key selection criteria include guaranteed h_FE group C performance, AEC-Q101 qualification for automotive use, low V_CE(sat) at medium current, and noise figure of 1–4 dB in 1 kHz bandwidth with 2 kΩ source impedance.

Technical Context

This PNP transistor employs epitaxial base technology to achieve high DC current gain consistency across h_FE group C (420–520 at 2 mA), low saturation voltage, and stable f_T up to 250 MHz. Its junction temperature rating of 150 °C and thermal resistance R_thJS ≤ 240 K/W (SOT-23) support reliable operation in thermally constrained PCB layouts.

Designed for linear amplification below 15 kHz, it delivers low noise (F = 1–4 dB) with specified C_cb = 1.5 pF and C_eb = 8 pF, enabling predictable AC response in common-emitter configurations. Complementary NPN pairing is supported via BC849C/BC850C series.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	30 V - Maximum safe collector-emitter voltage before breakdown in active mode
h_FE (I_C = 2 mA)	420–520 - Ensures stable biasing and gain control in low-current amplifier stages
V_CE(sat)	≤300 mV @ I_C=10 mA, I_B=0.5 mA - Minimizes power loss and heating in switching/driver roles
f_T	250 MHz - Supports wideband AF signal integrity and stable feedback loop design
Noise Figure	1–4 dB @ I_C=0.2 mA, f=1 kHz, R_S=2 kΩ - Critical for low-distortion audio preamp front-ends
P_tot	330 mW @ T_S ≤ 71 °C - Defines maximum continuous dissipation under standard board-mount conditions
AEC-Q101 Qualified	Yes - Validated for automotive electronics per stress test requirements (HTOL, TC, HTRB)

Pinout & Package

BC859CE6327HTSA1 is housed in a RoHS-compliant SOT-23 plastic surface-mount package with gull-wing leads and standardized thermal pad layout.

Pin/Terminal	Circuit Role	Design Meaning
1 (Emitter)	Current sink terminal	Connected to ground or lower-potential rail in common-emitter amplifier configurations
2 (Base)	Control input	Receives bias current to regulate collector current; requires current-limiting resistor in discrete designs
3 (Collector)	Output current source	Drives load or next stage; polarity inverted relative to base input in amplification mode

Key Features

Feature	Design Value
High h_FE group C	Guaranteed 420–520 at 2 mA enables precise DC bias setting without trimming resistors
Low V_CE(sat)	≤300 mV reduces conduction loss and self-heating in driver applications
Low-noise AF performance	1–4 dB NF at 1 kHz supports high-fidelity signal conditioning in analog front-ends
AEC-Q101 qualified	Validated for automotive under-hood and cabin environments including thermal cycling and humidity exposure
RoHS-compliant packaging	Pb-free SOT-23 meets EU Directive 2011/65/EU and JEDEC J-STD-020 reflow profiles

Applications

Automotive Cabin Audio Preamp

Industrial Sensor Signal Conditioning

Use Scenario: Amplifying weak microphone or line-level signals before ADC sampling in vehicle infotainment head units.

IC Role / Device Role / Timing Role: PNP small-signal amplifier in common-emitter configuration with emitter degeneration for linearity.

Use Value: Low 1–4 dB noise figure preserves SNR; h_FE consistency ensures repeatable gain across production batches.

Use Scenario: Buffering and level-shifting output of bridge-based pressure sensors in factory automation modules.

IC Role / Device Role / Timing Role: Linear driver stage translating sensor output to 0–5 V range for microcontroller analog inputs.

Use Value: V_CE(sat) ≤ 300 mV minimizes offset error; AEC-Q101 qualification ensures reliability in industrial ambient conditions.

LED Driver Bias Control

Power Supply Error Amplifier

Use Scenario: Providing adjustable base current to high-side PNP pass transistors in constant-current LED drivers.

IC Role / Device Role / Timing Role: Precision current source controlling LED string brightness via feedback loop.

Use Value: Tight h_FE tolerance (420–520) enables accurate current mirroring without calibration.

Use Scenario: Implementing error amplification in isolated DC-DC converter feedback paths for voltage regulation.

IC Role / Device Role / Timing Role: High-gain, low-noise differential pair input stage comparing reference and output voltages.

Use Value: 250 MHz f_T supports fast transient response; low C_cb (1.5 pF) prevents phase shift in compensation networks.

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
BC859BCE6327HTSA1	h_FE = 220–480 (group B); otherwise identical electrical specs and package	Lower gain spread increases need for bias resistor tuning in precision amplifiers	Select when cost sensitivity outweighs tight gain tolerance requirements
MMBT3906LT1G	V_CEO = 40 V; h_FE = 100–300; R_thJS = 300 K/W; no AEC-Q101 qualification	Higher breakdown voltage but unqualified for automotive; higher thermal resistance limits power handling	Choose only for non-automotive consumer or industrial applications where AEC-Q101 is not mandated

Compared with BC859BCE6327HTSA1, the BC859CE6327HTSA1 offers tighter h_FE control for stable biasing, while MMBT3906LT1G trades automotive qualification and thermal performance for broader V_CEO margin in general-purpose designs.

Availability

BC859CE6327HTSA1 is available at Aetrix Electronics and suitable for automotive cabin audio preamplifiers, industrial sensor signal conditioners, and LED driver bias control circuits requiring stable component supply and long-term lifecycle assurance.

Supply support for BC859CE6327HTSA1 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 devices.

The BC856–BC860 family was developed for high-reliability audio-frequency analog signal processing in automotive and industrial environments, emphasizing low noise, consistent gain, and AEC-Q101 compliance.

FAQ

What is the maximum operating temperature for BC859CE6327HTSA1?

The junction temperature limit is 150 °C, and the storage temperature range is –65 °C to +150 °C. Derating begins above 71 °C case temperature in SOT-23 mounting, where total power dissipation drops linearly to zero at 150 °C per the P_tot vs. T_S curve.

Is BC859CE6327HTSA1 pin-compatible with BC849C?

No - BC849C is an NPN complementary device with identical SOT-23 pinout (E-B-C), but BC859CE6327HTSA1 is PNP with reversed polarity. Pin positions match (1=E, 2=B, 3=C), but circuit topology must be adapted for PNP operation and bias direction.

Does BC859CE6327HTSA1 require external ESD protection?

No dedicated on-chip ESD structure is specified; however, its qualified AEC-Q101 test profile includes human-body model (HBM) testing per JESD22-A114. For board-level robustness in handling or high-dv/dt environments, external TVS or RC filtering on base/emitter is recommended.

Can BC859CE6327HTSA1 be used in RF applications above 10 MHz?

While f_T = 250 MHz suggests potential, its characterization is limited to AF (≤15 kHz) and small-signal AC parameters up to 100 MHz. No S-parameter data, stability analysis, or RF layout guidance is provided - use only in verified AF or low-speed switching roles unless independently characterized.

BC859CE6327HTSA1 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:: Last Time Buy

Transistor Type:: PNP

Current - Collector (Ic) (Max):: 100 mA

Voltage - Collector Emitter Breakdown (Max):: 30 V

Vce Saturation (Max) @ Ib, Ic:: 650mV @ 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

BC859CE6327HTSA1 FAQ

1.How can I place an order for BC859CE6327HTSA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for BC859CE6327HTSA1 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 BC859CE6327HTSA1 reliable?

The price and inventory of BC859CE6327HTSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BC859CE6327HTSA1 is usually 5 days.

3.What payment methods are accepted for BC859CE6327HTSA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BC859CE6327HTSA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BC859CE6327HTSA1?

BC859CE6327HTSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BC859CE6327HTSA1 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 BC859CE6327HTSA1?

For technical support, including BC859CE6327HTSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BC859CE6327HTSA1 requirements.

6.How does Aetrix verify that BC859CE6327HTSA1 is sourced from the original manufacturer or authorized distributors?

All BC859CE6327HTSA1 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 BC859CE6327HTSA1 meets industry standards.

7.What is the process for return or replacement of BC859CE6327HTSA1?

All BC859CE6327HTSA1 units undergo pre-shipment inspection (PSI). If there is an issue with BC859CE6327HTSA1, 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 BC859CE6327HTSA1 part is unused and in its original packaging.

Return procedure for BC859CE6327HTSA1:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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