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| Part No. | SFH-305 |
| Manufacturer | OSRAM |
| Size | 304 Kbytes |
| Pages | 10 pages |
| Description | Mini-Silicon NPN Phototransistor |
1. Device Description & Purpose
️· Device: SFH 305 (and accompanying SFH 405 - likely a complementary component, potentially a transistor)
️· Type: Miniature phototransistor (part of an array)
️· Application: Designed for light detection and response. Likely used in consumer electronics, industrial automation, and potentially medical devices.
️· Overall Goal: Provides light sensing capability with characteristics defined by spectral sensitivity, dark current, response time, and electrical performance.
2. Electrical Characteristics
️· Spectral Sensitivity: Shows a broad spectral sensitivity range (from around 550nm to 1100nm) with a peak somewhere in the 600-800nm region.
️· Photocurrent (I<sub>PCE</sub>): Current produced when the device is illuminated. (Details provided for varying Illumination & Voltage).
️· Dark Current (I<sub>CEO</sub>): Very small current that flows when no light is present. (Details provided for varying Voltage & Temperature).
️· Collector-Emitter Capacitance (C<sub>CE</sub>): Capacitance between the collector and emitter terminals.
️· Saturation Voltage (V<sub>CEsat</sub>): The collector-emitter voltage when the transistor is saturated (fully on).
️· Power Consumption: Data illustrating the dependency on temperature.
️· Directional Characteristics: (A graph illustrating the device's response to light from different angles).
3. Performance Data (Graphical Representations)
️· Photocurrent vs. Temperature: Shows how photocurrent changes with temperature.
️· Dark Current vs. Voltage & Temperature: Illustrates the low, but voltage and temperature-dependent dark current behavior.
️· Collector-Emitter Capacitance vs. Voltage: Illustrates how capacitance varies with applied voltage.
️· Photocurrent vs. Illumination
️· Photocurrent vs. Voltage.
4. Physical Characteristics
️· Package: Miniature Array, Epoxy
️· Dimensions: Detailed dimensions of the array. Includes spacing (2.54mm / 0.100 inch)
️· Weight: Approximate 10.0 mg.
️· Tooling Detailing: Indicates areas to be accessed for tool use, and notes that flash details might not be accurate.
5. Soldering Information
️· Recommended Solder Pad Dimensions: Defines the solder pad layout for proper mounting.
️· Soldering Method: Specifies a TTW (Time-To-Wave) soldering process per IEC-61760-1.
️· Temperature Profile: A recommended temperature profile for soldering the device.
6. Legal & Safety Information
️· Disclaimer: Standard legal statement regarding the document's accuracy and applicability. Language English prevails in case of any translations.
️· Safety Notice: Critical components must be expressly authorized for use in life-support devices.
7. Glossary
️· Typical Values: Explanation of the meaning of "typical" values in a datasheet context.
Key Takeaways for a User:
️· Good Light Sensitivity: The SFH 305 is sensitive to a broad range of wavelengths.
️· Low Dark Current: Minimizes unwanted signals when no light is present.
️· Specific Mounting: Requires adherence to recommended solder pad dimensions and soldering profile.
️· Safety Precautions: Proper usage is essential if used in life-critical applications.
️· Complex Device: Requires a qualified engineer to understand the complexities.
1. Device Description & Purpose
️· Device: SFH 305 (and accompanying SFH 405 - likely a complementary component, potentially a transistor)
️· Type: Miniature phototransistor (part of an array)
️· Application: Designed for light detection and response. Likely used in consumer electronics, industrial automation, and potentially medical devices.
️· Overall Goal: Provides light sensing capability with characteristics defined by spectral sensitivity, dark current, response time, and electrical performance.
2. Electrical Characteristics
️· Spectral Sensitivity: Shows a broad spectral sensitivity range (from around 550nm to 1100nm) with a peak somewhere in the 600-800nm region.
️· Photocurrent (I<sub>PCE</sub>): Current produced when the device is illuminated. (Details provided for varying Illumination & Voltage).
️· Dark Current (I<sub>CEO</sub>): Very small current that flows when no light is present. (Details provided for varying Voltage & Temperature).
️· Collector-Emitter Capacitance (C<sub>CE</sub>): Capacitance between the collector and emitter terminals.
️· Saturation Voltage (V<sub>CEsat</sub>): The collector-emitter voltage when the transistor is saturated (fully on).
️· Power Consumption: Data illustrating the dependency on temperature.
️· Directional Characteristics: (A graph illustrating the device's response to light from different angles).
3. Performance Data (Graphical Representations)
️· Photocurrent vs. Temperature: Shows how photocurrent changes with temperature.
️· Dark Current vs. Voltage & Temperature: Illustrates the low, but voltage and temperature-dependent dark current behavior.
️· Collector-Emitter Capacitance vs. Voltage: Illustrates how capacitance varies with applied voltage.
️· Photocurrent vs. Illumination
️· Photocurrent vs. Voltage.
4. Physical Characteristics
️· Package: Miniature Array, Epoxy
️· Dimensions: Detailed dimensions of the array. Includes spacing (2.54mm / 0.100 inch)
️· Weight: Approximate 10.0 mg.
️· Tooling Detailing: Indicates areas to be accessed for tool use, and notes that flash details might not be accurate.
5. Soldering Information
️· Recommended Solder Pad Dimensions: Defines the solder pad layout for proper mounting.
️· Soldering Method: Specifies a TTW (Time-To-Wave) soldering process per IEC-61760-1.
️· Temperature Profile: A recommended temperature profile for soldering the device.
6. Legal & Safety Information
️· Disclaimer: Standard legal statement regarding the document's accuracy and applicability. Language English prevails in case of any translations.
️· Safety Notice: Critical components must be expressly authorized for use in life-support devices.
7. Glossary
️· Typical Values: Explanation of the meaning of "typical" values in a datasheet context.
Key Takeaways for a User:
️· Good Light Sensitivity: The SFH 305 is sensitive to a broad range of wavelengths.
️· Low Dark Current: Minimizes unwanted signals when no light is present.
️· Specific Mounting: Requires adherence to recommended solder pad dimensions and soldering profile.
️· Safety Precautions: Proper usage is essential if used in life-critical applications.
️· Complex Device: Requires a qualified engineer to understand the complexities.
| Part No. | SFH-305 |
| Manufacturer | OSRAM |
| Size | 304 Kbytes |
| Pages | 10 pages |
| Description | Mini-Silicon NPN Phototransistor |
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