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

Infineon Technologies BC858CE6433HTMA1

Name: BC858CE6433HTMA1
Brand: Infineon Technologies
SKU: BC858CE6433HTMA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BC858CE6433HTMA1

Manufacturer:: Infineon Technologies

Category:: Single Bipolar Transistors

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

Datasheet:: BC858CE6433HTMA1.pdf

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

Quantity:: RFQ Add To RFQ list

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Product details

Overview

BC858CE6433HTMA1 from Nexperia is a PNP silicon small-signal transistor designed for audio-frequency input stages and driver circuits. It delivers high DC current gain (h_FE = 420–520 at I_C = 2 mA), low V_CE(sat) (≤300 mV at I_C = 10 mA/I_B = 0.5 mA), and low noise (F = 1–4 dB at 1 kHz), making it suitable for low-distortion preamplifier and switching applications in automotive and industrial control modules.

For engineers reviewing the BC858CE6433HTMA1 datasheet, BC858CE6433HTMA1 pinout, BC858CE6433HTMA1 application, or BC858CE6433HTMA1 equivalent, key selection criteria include verified h_FE group C performance, SOT323 package thermal resistance (R_thJS ≤ 90 K/W), V_CEO = 30 V rating, and AEC-Q101 qualification for automotive-grade reliability.

Technical Context

This PNP transistor operates in linear amplification and saturated switching modes with defined h_FE grouping (C: 420–520 at I_C = 10 µA; 480–520 at I_C = 2 mA). Its low-noise design targets 30 Hz–15 kHz bandwidths, and its complementary NPN pairing (BC848C) enables balanced differential stage implementation.

Thermal management is specified per package variant: SOT323 (BC858C/BC858CW) supports P_tot = 250 mW at T_S ≤ 128 °C, with R_thJS ≤ 90 K/W. Electrical characteristics are guaranteed across −65 °C to +150 °C junction temperature range under AEC-Q101 stress testing.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	30 V - Maximum collector-emitter voltage before breakdown; defines safe operating voltage in low-voltage switching rails.
h_FE (I_C = 2 mA)	480–520 - High, tightly binned DC current gain enabling stable biasing in emitter-follower and current-source configurations.
V_CE(sat)	≤300 mV @ I_C/I_B = 10 mA/0.5 mA - Low saturation voltage reduces power loss and heat generation in digital logic interface and load-switching roles.
f_T	250 MHz typ. - Transition frequency supports stable operation up to mid-VHF range, sufficient for AF amplification and fast-switching control signals.
C_cb	1.5 pF max. - Low collector-base capacitance minimizes Miller effect, preserving bandwidth in high-gain amplifier stages.
Noise figure	1–4 dB @ 1 kHz - Verified low-noise performance critical for microphone preamps and sensor signal conditioning.
AEC-Q101 qualified	Yes - Validated for automotive electronics per stress test requirements including HTOL, TC, HTRB, and ESD.

Pinout & Package

BC858CE6433HTMA1 is housed in a RoHS-compliant SOT323 (SC-70) plastic surface-mount package with standard 3-pin configuration and 0.65 mm pitch.

Pin/Terminal	Circuit Role	Design Meaning
1 (Base)	Current-controlled input terminal	Receives base drive current to regulate collector current; requires external bias network for stable DC operating point.
2 (Emitter)	Common reference terminal	Connected to higher potential in PNP operation; serves as current source output node in emitter-follower topology.
3 (Collector)	Output current terminal	Delivers amplified/saturated current to load; polarity reversed vs. NPN-collector connects toward ground-side switching path.

Key Features

Feature	Design Value
High h_FE group C binning	Guaranteed 480–520 gain at I_C = 2 mA ensures consistent bias stability across production lots in precision analog stages.
Low V_CE(sat)	≤300 mV enables <100 mW dissipation at 100 mA switching, reducing thermal derating needs in space-constrained PCB layouts.
Low-noise AF performance	1–4 dB noise figure over 30 Hz–15 kHz meets EN 50081-2 immunity thresholds for audio signal paths in infotainment systems.
AEC-Q101 qualification	Validated for automotive underhood and cabin environments, supporting 15-year service life in engine control and body electronics.
SOT323 footprint compatibility	Standard SC-70 outline allows drop-in replacement with BC857C/BC859C and simplifies layout reuse across PNP transistor families.

Applications

Automotive Door Module Driver

Industrial Sensor Signal Conditioning

Use Scenario: Driving window lift motor control logic and LED status indicators in door control units.

IC Role / Device Role / Timing Role: PNP switch providing active-low enable to MOSFET gate drivers and pull-up for open-collector sensor interfaces.

Use Value: Low V_CE(sat) limits self-heating during continuous 50 mA load switching; AEC-Q101 compliance ensures functional safety in ASIL-B subsystems.

Use Scenario: Amplifying millivolt-level thermocouple or strain gauge outputs in PLC analog input modules.

IC Role / Device Role / Timing Role: Discrete transistor in low-noise, high-input-impedance common-emitter preamplifier stage.

Use Value: 1–4 dB noise figure and 480+ h_FE maintain SNR > 60 dB across 0–100 °C ambient, meeting IEC 61000-4-5 surge immunity requirements.

Consumer Audio Preamp Stage

Medical Patient Monitor Front-End

Use Scenario: First-stage amplification of electret microphone signals in portable hearing aids and voice recorders.

IC Role / Device Role / Timing Role: Low-noise PNP emitter-follower buffer isolating mic capsule from downstream op-amp inputs.

Use Value: 30 Hz–15 kHz flat response and sub-4 dB noise preserve speech intelligibility; SOT323 size fits <3 mm² board area constraints.

Use Scenario: Isolating and level-shifting ECG electrode signals prior to ADC sampling in wearable monitors.

IC Role / Device Role / Timing Role: High-h_FE, low-drift PNP transistor in instrumentation amplifier input stage with guarded feedback paths.

Use Value: Tight h_FE binning (480–520) minimizes gain mismatch between differential pairs; RoHS + halogen-free materials meet ISO 10993 biocompatibility screening.

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
BC857CE6327HTSA1	V_CEO = 45 V; h_FE = 420–520 (same group C); R_thJS = 90 K/W (SOT23)	Higher voltage margin suits 24 V industrial bus interfaces; larger SOT23 footprint increases thermal mass but reduces density.	Select when V_CEO > 30 V is required and PCB layout permits 2.9 × 1.3 mm vs. SOT323's 2.0 × 1.25 mm.
BC859CE6327HTSA1	V_CEO = 30 V (same); h_FE = 420–520 (group C); P_tot = 330 mW (SOT23)	Higher power rating enables 150 mA pulsed loads; not AEC-Q101 qualified-limited to commercial-grade equipment.	Choose for cost-sensitive consumer applications where automotive qualification is unnecessary and thermal headroom is critical.

Compared with BC858CE6433HTMA1, BC857C offers higher voltage tolerance in identical gain binning but larger package, while BC859C trades automotive qualification for higher power handling-making BC858C optimal for space-constrained, AEC-Q101–mandated designs requiring precise 30 V operation.

Availability

BC858CE6433HTMA1 is available at Aetrix Electronics and suitable for automotive door modules, industrial sensor signal conditioners, consumer audio preamplifiers, and medical patient monitor front-ends requiring stable component supply and long-term lifecycle assurance.

Supply support for BC858CE6433HTMA1 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

Nexperia is a global semiconductor expert focused on essential efficiency-enhancing components, delivering high-performance, reliable, and scalable solutions for automotive, industrial, mobile, and computing markets.

BC858CE6433HTMA1 belongs to Nexperia's BC856–BC860 PNP transistor family, engineered specifically for high-fidelity audio-frequency amplification and robust driver-stage switching in AEC-Q101–compliant automotive electronics.

FAQ

What is the maximum junction temperature for BC858CE6433HTMA1?

The absolute maximum junction temperature (T_j) is 150 °C, validated per AEC-Q101 thermal stress testing. Operation above this limit risks permanent degradation of h_FE and increased leakage. Derating curves in Figure 8 of the official datasheet define safe power limits versus solder-point temperature (T_S).

Is BC858CE6433HTMA1 pin-compatible with BC848C?

No-BC858CE6433HTMA1 (PNP) and BC848C (NPN) share identical SOT323 pinout (1=Base, 2=Emitter, 3=Collector), but their complementary polarity means direct substitution without circuit rework will invert logic states and cause functional failure in switching applications.

Does BC858CE6433HTMA1 support pulsed operation beyond its DC ratings?

Yes-permissible pulse load data (Figure 7) confirms P_tot(max)/P_tot(DC) = 10× for t_p ≤ 100 µs at D = 2%. At I_C = 200 mA peak, V_CE must remain ≤15 V to avoid secondary breakdown, and thermal cycling must stay within AEC-Q101 transient limits.

How does the h_FE group C binning affect circuit design?

Group C guarantees h_FE ≥480 at I_C = 2 mA, enabling single-resistor bias networks without trim pots. This eliminates gain variation-induced offset drift in differential pairs and improves production yield in battery-powered audio devices where quiescent current stability is critical.

BC858CE6433HTMA1 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

BC858CE6433HTMA1 FAQ

1.How can I place an order for BC858CE6433HTMA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for BC858CE6433HTMA1 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 BC858CE6433HTMA1 reliable?

The price and inventory of BC858CE6433HTMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BC858CE6433HTMA1 is usually 5 days.

3.What payment methods are accepted for BC858CE6433HTMA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BC858CE6433HTMA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BC858CE6433HTMA1?

BC858CE6433HTMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BC858CE6433HTMA1 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 BC858CE6433HTMA1?

For technical support, including BC858CE6433HTMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BC858CE6433HTMA1 requirements.

6.How does Aetrix verify that BC858CE6433HTMA1 is sourced from the original manufacturer or authorized distributors?

All BC858CE6433HTMA1 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 BC858CE6433HTMA1 meets industry standards.

7.What is the process for return or replacement of BC858CE6433HTMA1?

All BC858CE6433HTMA1 units undergo pre-shipment inspection (PSI). If there is an issue with BC858CE6433HTMA1, 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 BC858CE6433HTMA1 part is unused and in its original packaging.

Return procedure for BC858CE6433HTMA1:

1.Submit a request within 90 days.

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

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