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

Infineon Technologies BC 808-25 E6433

Name: BC 808-25 E6433
Brand: Infineon Technologies
SKU: BC 808-25 E6433
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BC 808-25 E6433

Manufacturer:: Infineon Technologies

Category:: Single Bipolar Transistors

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

Datasheet:: BC 808-25 E6433.pdf

Description:: TRANS PNP 25V 0.5A PG-SOT23

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Product details

Overview

BC808-25 E6433 from Nexperia is a PNP silicon general-purpose audio-frequency transistor with V_CEO = 25 V, I_C = 500 mA, h_FE = 160–250 (at I_C = 100 mA), V_CE(sat) ≤ 0.7 V (at I_C = 500 mA), and SOT23 package. It serves as a medium-power switching or linear amplification device in low-voltage DC control circuits, motor drivers, and LED load interfaces.

For engineers reviewing the BC808-25 E6433 datasheet, BC808-25 E6433 pinout, BC808-25 E6433 application, or BC808-25 E6433 equivalent, key selection criteria include guaranteed h_FE group 25 performance across temperature, low saturation voltage under high current, AEC-Q101 qualification for automotive-grade reliability, and RoHS-compliant lead-free packaging.

Technical Context

This PNP bipolar junction transistor operates in active, saturation, and cutoff regions with defined DC gain groups and stable thermal resistance (R_thJS ≤ 215 K/W). Its complementary NPN counterpart is BC817-25/BC817-25W, enabling push-pull and differential pair configurations.

Designed for robustness in automotive and industrial environments, it meets AEC-Q101 stress testing requirements including HTGB, HTRB, and temperature cycling. Electrical behavior is characterized at T_A = 25°C with validated derating curves for power dissipation versus case temperature (T_S).

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	25 V - Maximum collector-emitter voltage before breakdown; sets upper limit for supply rail compatibility in 24 V systems.
I_C	500 mA - Continuous collector current rating; supports driving small relays, solenoids, or logic-level loads without external heat sinking.
h_FE (grp. 25)	160–250 - Guaranteed DC current gain at I_C = 100 mA, V_CE = 1 V; enables predictable base drive sizing for switch-mode operation.
V_CE(sat)	≤ 0.7 V - Low saturation voltage at I_C = 500 mA, I_B = 50 mA; minimizes conduction loss and self-heating in high-duty-cycle switching.
f_T	200 MHz - Transition frequency at I_C = 50 mA, V_CE = 5 V; supports audio-band amplification and fast digital switching up to ~10 MHz.
R_thJS	≤ 215 K/W - Junction-to-soldering-point thermal resistance; defines maximum allowable power dissipation at given board thermal design.
T_j	150 °C - Maximum junction temperature; allows operation in under-hood automotive or enclosed industrial enclosures with proper PCB copper area.

Pinout & Package

BC808-25 E6433 is housed in a standard SOT23 plastic surface-mount package with gull-wing leads, optimized for automated placement and reflow soldering on 1.6 mm thick FR-4 PCBs.

Pin/Terminal	Circuit Role	Design Meaning
1 (Emitter)	E	Current sink node; connects to higher potential (e.g., V_CC) in common-emitter switch configuration.
2 (Base)	B	Control input; requires current-limited drive (typically 5–50 mA) to saturate the transistor reliably.
3 (Collector)	C	Output node; connects to load (e.g., relay coil or LED anode) and returns to ground through load path.

Key Features

Feature	Design Value
AEC-Q101 qualified	Validated for automotive applications including engine control modules and body electronics per stress test requirements.
RoHS-compliant (Pb-free)	Meets EU Directive 2011/65/EU; compatible with lead-free reflow profiles and eliminates hazardous substance reporting obligations.
h_FE group 25	Guaranteed 160–250 gain range ensures consistent base resistor selection across production lots without binning.
Low V_CE(sat)	≤ 0.7 V at full rated current reduces power loss by >30% vs. legacy PNP transistors like BC328, improving thermal margin.
Complementary pairing	Direct match with BC817-25 enables balanced push-pull output stages in Class-B audio amplifiers and H-bridge drivers.

Applications

Automotive Door Module

Industrial PLC Output Stage

Use Scenario: Driving window lift motors and mirror adjustment actuators in 12 V vehicle platforms.

IC Role / Device Role / Timing Role: Medium-current PNP switch controlling motor direction via H-bridge half-bridge configuration.

Use Value: Low V_CE(sat) limits power loss to <150 mW at 400 mA, reducing PCB heating and eliminating need for heatsinking in compact modules.

Use Scenario: Isolating and amplifying 24 V DC digital outputs to drive solenoid valves and indicator lamps.

IC Role / Device Role / Timing Role: High-gain PNP interface between microcontroller GPIO and inductive load.

Use Value: Guaranteed h_FE ≥160 ensures reliable saturation with ≤10 mA base drive, simplifying level-shifting circuit design.

LED Backlight Driver

DC-DC Converter Bias Circuit

Use Scenario: Constant-current switching for white LED strings in display backlighting subsystems.

IC Role / Device Role / Timing Role: Linear or PWM-controlled current sink in adjustable current source topology.

Use Value: Stable h_FE over −40°C to +105°C maintains consistent LED brightness across ambient temperature extremes.

Use Scenario: Providing bias current to error amplifier and reference circuits in isolated flyback controllers.

IC Role / Device Role / Timing Role: Precision current source for bandgap references and op-amp bias networks.

Use Value: Low leakage (I_CBO ≤ 0.1 µA at 25°C) prevents reference drift and improves regulation accuracy in low-power standby modes.

Equivalent & Alternatives

The following parts are listed as comparable options for similar PNP switching transistor applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
BC808-25W	SOT323 package; R_thJS ≤ 80 K/W; P_tot = 250 mW at T_S = 130°C	Better thermal performance in space-constrained layouts; lower max power at same case temp	Select when board real estate is limited and thermal vias support lower R_thJA.
BC328-25	TO-92 package; V_CEO = 25 V; h_FE = 160–320; P_tot = 625 mW; non-AEC-Q101	Higher power handling but through-hole mounting; no automotive qualification	Select for prototyping or non-automotive cost-sensitive designs requiring higher dissipation.

Compared with BC808-25W, the E6433 variant offers higher power rating (330 mW vs. 250 mW) in SOT23 but less thermal efficiency; versus BC328-25, it provides surface-mount compatibility and AEC-Q101 assurance at reduced package size and power capability.

Availability

BC808-25 E6433 is available at Aetrix Electronics and suitable for automotive door modules, industrial PLC output stages, and LED backlight drivers requiring stable component supply, long-term lifecycle support, and AEC-Q101 compliance.

Supply support for BC808-25 E6433 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 semiconductors, delivering high-performance, reliable discrete and logic devices for automotive, industrial, and consumer markets.

BC808-25 belongs to Nexperia's BC807/BC808 family of general-purpose PNP transistors engineered for high-current switching and linear amplification in space-constrained, thermally demanding applications.

FAQ

Is BC808-25 E6433 pin-compatible with BC807-25?

Yes - both share identical SOT23 pinout (E-B-C) and mechanical footprint. However, BC807-25 is NPN while BC808-25 is PNP, so polarity reversal is required in circuit layout. Electrical parameters differ significantly: BC807-25 has V_CEO = 45 V and complementary gain grouping.

What is the maximum safe operating current at 85°C ambient?

At T_A = 85°C, derated continuous collector current is approximately 380 mA, based on the P_tot vs. T_S curve (330 mW at T_S ≤ 79°C) and typical V_CE(sat) of 0.6 V. This assumes adequate PCB copper area and no forced airflow.

Does BC808-25 E6433 support pulse operation beyond its DC ratings?

Yes - pulse current up to 1000 mA is permitted with duty cycle ≤ 2% and pulse width < 300 µs, per datasheet pulse rating. Peak power must remain within P_totmax/P_totDC envelope, and thermal accumulation must be verified for repetitive pulses.

Can BC808-25 E6433 replace BC808-40 in a design?

No - BC808-40 has h_FE = 250–400 (group 40), offering higher gain and lower base drive requirement. Substituting BC808-25 may cause incomplete saturation in high-impedance base-drive circuits, increasing V_CE(sat) and thermal stress.

BC 808-25 E6433 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:: PNP

Current - Collector (Ic) (Max):: 500 mA

Voltage - Collector Emitter Breakdown (Max):: 25 V

Vce Saturation (Max) @ Ib, Ic:: 700mV @ 50mA, 500mA

Current - Collector Cutoff (Max):: 100nA (ICBO)

DC Current Gain (hFE) (Min) @ Ic, Vce:: 160 @ 100mA, 1V

Power - Max:: 330 mW

Frequency - Transition:: 200MHz

Operating Temperature:: 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: PG-SOT23

BC 808-25 E6433 FAQ

1.How can I place an order for BC 808-25 E6433 through Aetrix?

Please submit a Request for Quotation (RFQ) for BC 808-25 E6433 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 BC 808-25 E6433 reliable?

The price and inventory of BC 808-25 E6433 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BC 808-25 E6433 is usually 5 days.

3.What payment methods are accepted for BC 808-25 E6433?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BC 808-25 E6433 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BC 808-25 E6433?

BC 808-25 E6433 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BC 808-25 E6433 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 BC 808-25 E6433?

For technical support, including BC 808-25 E6433 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BC 808-25 E6433 requirements.

6.How does Aetrix verify that BC 808-25 E6433 is sourced from the original manufacturer or authorized distributors?

All BC 808-25 E6433 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 BC 808-25 E6433 meets industry standards.

7.What is the process for return or replacement of BC 808-25 E6433?

All BC 808-25 E6433 units undergo pre-shipment inspection (PSI). If there is an issue with BC 808-25 E6433, 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 BC 808-25 E6433 part is unused and in its original packaging.

Return procedure for BC 808-25 E6433:

1.Submit a request within 90 days.

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

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