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Infineon Technologies BC 808-40W E6327
- Part No.:
- BC 808-40W E6327
- Manufacturer:
- Infineon Technologies
- Category:
- Single Bipolar Transistors
- Package:
- SC-70, SOT-323
- Datasheet:
-
BC 808-40W E6327.pdf
- Description:
- TRANS PNP 25V 0.5A PG-SOT323
- Quantity:
- Payment:
- Shipping:
Inventory:2,302
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Product details
Overview
BC808-40W E6327 from Infineon Technologies is a PNP silicon general-purpose audio-frequency transistor in SOT323 package, rated for 25 V VCEO, 500 mA IC, 250 mW Ptot at TS ≤ 130 °C, and hFE = 250–400 (IC = 100 mA, VCE = 1 V), used in low-voltage switching and linear amplification stages of automotive body control modules.
For engineers reviewing the BC808-40W E6327 datasheet, BC808-40W E6327 pinout, BC808-40W E6327 application, or BC808-40W E6327 equivalent, key selection criteria include guaranteed hFE group 40 performance, low VCE(sat) ≤ 0.7 V at IC = 500 mA/IB = 50 mA, AEC-Q101 qualification, RoHS-compliant SOT323 footprint, and complementary pairing with BC818-40W.
Technical Context
This PNP bipolar junction transistor operates in active, saturation, and cutoff regions with DC current gain specified across three hFE groups (16/25/40); BC808-40W belongs to the highest-gain group, delivering hFE ≥ 250 at IC = 100 mA and ≥ 350 at IC = 500 mA. Its fT = 200 MHz supports stable operation up to mid-VHF frequencies in small-signal amplifiers.
Thermal design relies on RthJS ≤ 80 K/W (SOT323 package, TS ≤ 130 °C), enabling sustained 250 mW dissipation without forced cooling. The device features V(BR)CEO = 25 V and V(BR)CBO = 30 V, limiting use to ≤24 V rail systems with margin for transients.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 25 V - Maximum collector-emitter voltage before breakdown; defines safe operating range in 24 V automotive logic-level switching |
| IC | 500 mA - Continuous collector current rating; supports driving LED arrays or small relays directly |
| hFE (IC = 100 mA) | 250–400 - Guaranteed DC current gain group 40; enables low-base-drive designs with <2 mA IB for 500 mA IC |
| VCE(sat) | ≤0.7 V @ IC/IB = 500/50 mA - Low saturation voltage reduces power loss and self-heating in switching applications |
| fT | 200 MHz - Transition frequency confirms suitability for audio preamplifier and low-speed digital signal conditioning |
| RthJS | ≤80 K/W - Junction-to-soldering-point thermal resistance for SOT323; allows 250 mW dissipation at 130 °C case temperature |
| AEC-Q101 | Qualified - Meets stress test requirements for automotive electronics, including temperature cycling and HTRB |
Pinout & Package
SOT323 (SC-70) plastic surface-mount package, 3-terminal, lead-free (RoHS compliant), dimensions 2.1 × 2.0 × 0.95 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (B) | Base | Current-controlled input terminal; requires series resistor to limit IB and prevent thermal runaway |
| 2 (E) | Emitter | Common reference terminal for PNP configuration; connected to higher potential (e.g., VCC) in typical switch layouts |
| 3 (C) | Collector | Output current sink terminal; delivers load current to ground when saturated |
Key Features
| Feature | Design Value |
|---|---|
| High hFE group 40 | Guaranteed hFE ≥ 250 at 100 mA ensures robust drive capability with minimal base current overhead |
| Low VCE(sat) | ≤0.7 V at full-rated 500 mA enables <350 mW conduction loss in high-duty-cycle switches |
| AEC-Q101 qualified | Validated for automotive under-hood environments including 1000-hour HTOL and -40 °C to +150 °C operational range |
| SOT323 footprint | Compact 2.1 × 2.0 mm outline supports high-density PCB layouts in space-constrained ECUs and sensor nodes |
Applications
| Automotive Door Module Switching | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Driving window lift motor enable lines and mirror fold/unfold solenoids in door control units. IC Role / Device Role / Timing Role: PNP switch controlling 12 V loads with microcontroller GPIO-level base drive. Use Value: VCE(sat) ≤ 0.7 V minimizes heat generation during continuous 300–500 mA actuation pulses. | Use Scenario: Amplifying low-level analog outputs from NTC temperature sensors in HVAC control boards. IC Role / Device Role / Timing Role: Linear amplifier stage with fixed bias network providing 10–20× voltage gain. Use Value: hFE ≥ 250 ensures stable DC transfer function across -40 °C to +125 °C ambient. |
| LED Driver for Dashboard Backlight | Power Supply Enable Control |
Use Scenario: Constant-current sinking for white LED strings in instrument cluster backlighting. IC Role / Device Role / Timing Role: Current-regulated switch in emitter-follower configuration with feedback resistor. Use Value: Tight hFE grouping (250–400) enables consistent LED brightness across production batches. | Use Scenario: Enabling 3.3 V LDO regulators in battery management subsystems via MCU-controlled enable line. IC Role / Device Role / Timing Role: Level-shifting interface between 1.8 V logic and 5 V regulator EN pin. Use Value: V(BR)CBO = 30 V provides 5 V margin against supply rail overshoot during hot-plug events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PNP general-purpose transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BC808-40 E6327 | SOT23 package (larger footprint), RthJS ≤ 215 K/W, Ptot = 330 mW at TS ≤ 79 °C | Higher thermal mass but lower power density; suited for non-automotive industrial PCBs with less stringent space constraints | Select when board layout permits SOT23 and thermal derating above 79 °C is not required |
| BC818-40W E6327 | NPN complement; identical SOT323 package, same hFE group, VCEO = 30 V, VCE(sat) ≤ 0.7 V | Used in high-side vs. low-side switching configurations; requires inverted logic drive | Select for complementary push-pull output stages or where NPN topology simplifies bias network design |
Compared with BC808-40W E6327, the SOT23 BC808-40 offers higher absolute power handling but lower thermal efficiency in compact assemblies, while BC818-40W enables symmetrical dual-transistor designs without footprint mismatch.
Availability
BC808-40W E6327 is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor interfaces, LED lighting controls, and power supply enable circuits requiring stable component supply and AEC-Q101 compliance.
Supply support for BC808-40W E6327 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, with global manufacturing and quality certification to ISO/TS 16949.
BC808-40W belongs to Infineon's BC807/BC808 family of AEC-Q101-qualified general-purpose bipolar transistors designed specifically for cost-sensitive, reliability-critical automotive signal switching and amplification functions.
FAQ
Is BC808-40W E6327 pin-compatible with BC807-40W E6327?
Yes - both share identical SOT323 package and pinout (B-E-C). However, BC807-40W is an NPN device with VCEO = 45 V and hFE group 40, making it unsuitable as a direct functional replacement in PNP circuits without topology redesign.
What is the maximum allowable base current for continuous operation?
The absolute maximum rated base current is 100 mA, but for reliable long-term operation at 25 °C ambient, base current should be limited to ≤50 mA to avoid localized heating and hFE degradation, especially under pulsed conditions exceeding 2% duty cycle.
Does BC808-40W E6327 support Pb-free reflow soldering per JEDEC J-STD-020?
Yes - the SOT323 package is qualified for standard Pb-free reflow profiles (peak temperature 260 °C, 20–40 sec), with moisture sensitivity level (MSL) 1, eliminating bake requirements prior to assembly.
Can BC808-40W E6327 be used in linear regulator pass elements?
No - its VCEO = 25 V and Ptot = 250 mW at TS ≤ 130 °C are insufficient for pass transistor duty; voltage drop and power dissipation would exceed safe operating area limits in >12 V input-to-output differential applications.
BC 808-40W E6327 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- 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:
- 250 @ 100mA, 1V
- Power - Max:
- 250 mW
- Frequency - Transition:
- 200MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-SOT323
BC 808-40W E6327 FAQ
1.How can I place an order for BC 808-40W E6327 through Aetrix?
Please submit a Request for Quotation (RFQ) for BC 808-40W E6327 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 808-40W E6327 reliable?
The price and inventory of BC 808-40W E6327 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BC 808-40W E6327 is usually 5 days.
3.What payment methods are accepted for BC 808-40W E6327?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BC 808-40W E6327 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BC 808-40W E6327?
BC 808-40W E6327 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BC 808-40W E6327 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 808-40W E6327?
For technical support, including BC 808-40W E6327 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BC 808-40W E6327 requirements.
6.How does Aetrix verify that BC 808-40W E6327 is sourced from the original manufacturer or authorized distributors?
All BC 808-40W E6327 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 808-40W E6327 meets industry standards.
7.What is the process for return or replacement of BC 808-40W E6327?
All BC 808-40W E6327 units undergo pre-shipment inspection (PSI). If there is an issue with BC 808-40W E6327, 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 808-40W E6327 part is unused and in its original packaging.
Return procedure for BC 808-40W E6327:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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