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Infineon Technologies BC 817-25 E6327
- Part No.:
- BC 817-25 E6327
- Manufacturer:
- Infineon Technologies
- Category:
- Single Bipolar Transistors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BC 817-25 E6327.pdf
- Description:
- TRANS NPN 45V 0.5A PG-SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:5,479
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Product details
Overview
BC 817-25 E6327 from Infineon Technologies is an NPN silicon general-purpose audio-frequency transistor with hFE = 160–250 (at IC = 100 mA, VCE = 1 V), VCEO = 45 V, IC = 500 mA continuous, and VCE(sat) ≤ 0.7 V (at IC = 500 mA, IB = 50 mA), used in low-voltage switching and linear amplification stages of power supply control circuits.
For engineers reviewing the BC 817-25 E6327 datasheet, BC 817-25 E6327 pinout, BC 817-25 E6327 application, or BC 817-25 E6327 equivalent, key selection criteria include DC current gain group (hFE-grp.25), SOT-23 package thermal resistance (RthJS ≤ 70 K/W), and AEC-Q101 qualification for automotive-grade reliability.
Technical Context
This transistor operates as a medium-current, medium-voltage NPN switch or amplifier with fixed-emitter biasing capability. Its hFE group 25 ensures predictable current amplification across IC = 10 mA to 500 mA at VCE = 1 V, and its low VCE(sat) supports efficient on-state conduction in 5–12 V logic-level driven loads.
The device uses planar epitaxial silicon technology with Pb-free (RoHS-compliant) metallization and meets AEC-Q101 stress test requirements for automotive electronics. Junction temperature is rated to 150 °C, and thermal derating begins at TS > 115 °C for the SOT-23 variant.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 45 V - Maximum collector-emitter voltage before breakdown under open-base conditions; enables use in 24 V system auxiliary rails. |
| hFE (IC = 100 mA) | 160–250 - Confirmed DC current gain range for hFE-grp.25; ensures stable base drive sizing in switching designs. |
| VCE(sat) | ≤ 0.7 V @ IC/IB = 10 - Low saturation voltage reduces conduction loss in relay drivers and LED current sinks. |
| IC (continuous) | 500 mA - Rated collector current defines maximum steady-state load handling without thermal shutdown. |
| RthJS | ≤ 70 K/W - Junction-to-solder-point thermal resistance for SOT-23 package; determines PCB copper area requirement for thermal management. |
| fT | 170 MHz typ. - Transition frequency confirms usable bandwidth up to ~10–20 MHz in small-signal amplifiers. |
Pinout & Package
BC 817-25 E6327 is housed in a standard SOT-23 plastic surface-mount package with gull-wing leads, optimized for automated placement and reflow soldering. The package outline conforms to JEDEC TO-236AB and supports thermal dissipation up to 500 mW at TS ≤ 115 °C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Emitter) | E | Reference terminal for base-emitter junction; connects to ground or low-impedance return path in common-emitter configurations. |
| 2 (Base) | B | Control input node; requires current-limited drive (e.g., via series resistor) to achieve target hFE-dependent collector current. |
| 3 (Collector) | C | Output current terminal; connects to load (e.g., relay coil, LED string) and high-side supply rail in low-side switch topology. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control modules and body electronics per stress test requirements. |
| hFE group 25 | Guaranteed 160–250 gain at IC = 100 mA, enabling consistent base resistor selection across production lots. |
| VCE(sat) ≤ 0.7 V | Minimizes power loss in saturated switching mode, supporting >95% efficiency in 5 V logic-driven loads. |
| Pb-free / RoHS compliant | Meets EU Directive 2011/65/EU; compatible with lead-free reflow profiles and halogen-free board assembly. |
Applications
| Automotive Door Module | Industrial PLC Output Stage |
|---|---|
Use Scenario: Driving window lift motor relays and LED status indicators in door control units. IC Role / Device Role / Timing Role: NPN low-side switch controlling 12 V inductive and resistive loads with logic-level base drive. Use Value: AEC-Q101 qualification ensures reliability over 15-year vehicle lifetime; low VCE(sat) limits self-heating during repeated actuation cycles. | Use Scenario: Isolating microcontroller GPIO pins from 24 V field actuators in programmable logic controllers. IC Role / Device Role / Timing Role: Discrete interface transistor translating 3.3 V/5 V logic signals to 24 V output sink capability. Use Value: 500 mA IC rating supports direct drive of solenoids and small contactors without external driver ICs. |
| Consumer Power Adapter Feedback | Medical Sensor Signal Conditioning |
Use Scenario: Providing optocoupler-coupled feedback current to primary-side PWM controllers in AC/DC adapters. IC Role / Device Role / Timing Role: Linear-mode current source regulating feedback loop current in isolated flyback converters. Use Value: Stable hFE across temperature enables accurate current mirroring; fT > 100 MHz supports fast transient response in regulation loops. | Use Scenario: Amplifying low-level analog signals from thermistor or pressure sensor bridges in portable diagnostic devices. IC Role / Device Role / Timing Role: Discrete emitter-follower buffer stage providing low-output-impedance drive to ADC inputs. Use Value: Low noise and predictable VBE(sat) ensure <1% gain error in precision instrumentation paths at room and body temperature. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NPN general-purpose transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BC847B,215 (Nexperia) | Lower IC (100 mA), higher hFE (200–450), same SOT-23 package. | Not suitable for >200 mA loads; better for signal amplification than power switching. | Select when gain consistency at low currents (<10 mA) is prioritized over load current capacity. |
| MMBT3904LT1G (ON Semiconductor) | Same VCEO (40 V), lower VCE(sat) (0.2 V typ.), hFE 100–300, AEC-Q101 qualified. | Higher gain variation; slightly reduced voltage margin but superior saturation performance. | Prefer for battery-powered systems where VCE(sat) reduction directly extends runtime. |
Compared with BC 817-25 E6327, BC847B offers tighter hFE spread at low current but insufficient IC for relay driving; MMBT3904LT1G delivers lower conduction loss but trades off voltage headroom and thermal robustness at full load.
Availability
BC 817-25 E6327 is available at Aetrix Electronics and suitable for automotive door modules, industrial PLC output stages, and consumer power adapter feedback circuits requiring stable component supply across extended production lifecycles.
Supply support for BC 817-25 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 and discrete devices.
The BC817K series belongs to Infineon's AEC-Q101-qualified general-purpose transistor product line, designed for cost-sensitive, reliability-critical switching and amplification tasks in automotive and industrial environments.
FAQ
Is BC 817-25 E6327 pin-compatible with BC847 or MMBT3904?
Yes, BC 817-25 E6327 uses standard SOT-23 pinout (E-B-C), matching BC847 and MMBT3904. However, differences in hFE, VCE(sat), and IC ratings require circuit validation before substitution-especially in saturation or thermal-limited designs.
What is the maximum allowable base current for continuous operation?
The absolute maximum base current is 100 mA per datasheet. For reliable long-term operation, design base drive to maintain IB ≤ 50 mA at peak IC, ensuring hFE remains within specified range and avoiding localized heating at the base-emitter junction.
Does BC 817-25 E6327 support pulsed operation beyond 500 mA?
Yes-peak collector current is rated at 1000 mA for pulse widths < 300 µs with duty cycle < 2%. Pulse operation must respect RthJS derating curves and avoid exceeding Tj = 150 °C; PCB layout and thermal mass strongly influence achievable pulse performance.
How does AEC-Q101 qualification impact usage in non-automotive applications?
AEC-Q101 qualification indicates enhanced process controls, lot traceability, and accelerated stress testing (e.g., HTGB, TC, HTRB). These attributes improve long-term reliability in industrial, medical, and telecom equipment-even when automotive environmental extremes are not required.
BC 817-25 E6327 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:
- NPN
- Current - Collector (Ic) (Max):
- 500 mA
- Voltage - Collector Emitter Breakdown (Max):
- 45 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:
- 170MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-SOT23
BC 817-25 E6327 FAQ
1.How can I place an order for BC 817-25 E6327 through Aetrix?
Please submit a Request for Quotation (RFQ) for BC 817-25 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 817-25 E6327 reliable?
The price and inventory of BC 817-25 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 817-25 E6327 is usually 5 days.
3.What payment methods are accepted for BC 817-25 E6327?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BC 817-25 E6327 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BC 817-25 E6327?
BC 817-25 E6327 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BC 817-25 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 817-25 E6327?
For technical support, including BC 817-25 E6327 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BC 817-25 E6327 requirements.
6.How does Aetrix verify that BC 817-25 E6327 is sourced from the original manufacturer or authorized distributors?
All BC 817-25 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 817-25 E6327 meets industry standards.
7.What is the process for return or replacement of BC 817-25 E6327?
All BC 817-25 E6327 units undergo pre-shipment inspection (PSI). If there is an issue with BC 817-25 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 817-25 E6327 part is unused and in its original packaging.
Return procedure for BC 817-25 E6327:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BC 817-25 E6327 Tags
-
MMBT3906LT1G
onsemi
-
MMBT3904-7-F
Diodes Incorporated
-
MMBT3904LT1G
onsemi
-
MMBT3906-7-F
Diodes Incorporated
-
MMBT3904-TP
Micro Commercial Co
-
MMBT2222A-7-F
Diodes Incorporated
-
BC846BLT1G
onsemi
-
BC847B,215
Nexperia USA Inc.
-
SMMBT3904LT1G
onsemi
-
MMBT2222A-TP
Micro Commercial Co
-
MMBTA06LT1G
onsemi
-
MMBT2222ALT1G
onsemi
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