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Vishay SFH628A-4 AC Input Optocoupler Through Hole 4-Pin DIP Malaysia SFH628A-4
Specifications
| Country of Origin | Malaysia |
|---|---|
| Brand | Vishay |
| Model | SFH628A-4 |
| Mount Type | Through Hole |
| Series | SFH628 |
| Maximum Operating Temperature | 100°C |
| Package Type | DIP |
| Minimum Operating Temperature | -55°C |
| Maximum input current | 50mA |
| Number Of Channels | 1 |
| Maximum Forward Voltage | 1.5V |
| Number of Pins | 4 |
| Input Current Type | AC |
| Typical Rise Time | 3.5μs |
| Maximum Current Transfer Ratio | 500% |
| Typical Fall Time | 5μs |
| Minimum Current Transfer Ratio | 32% |
Key Features
- Features a GaAs infrared emitting diode optically coupled to a silicon planar phototransistor detector.
- Provides high current transfer ratio and low coupling capacitance for improved signal integrity.
- Offers high isolation voltage of 5300 Vrms ensuring robust electrical isolation.
- Suitable for use in industrial, electronic, and power control applications requiring AC input detection.
- Operates within a temperature range from -55°C to 100°C providing versatility under harsh conditions.
- Complies with standards UL1577, IEC 60065, DIN EN 60747-5-5 (VDE0884-5), and BSI IEC 60950.
- Through hole mount type with 4 pins in DIP package for easy integration onto printed circuit boards.
Product Description
Vishay SFH628A-4 AC Input Optocoupler is designed for reliable electrical isolation of AC signals in various electronic systems. This device integrates a Gallium Arsenide infrared emitting diode that is optically coupled to a silicon planar phototransistor detector encapsulated in a plastic DIP-4 package, ensuring durability and performance reliability.
The optocoupler features a high current transfer ratio (CTR) with a maximum of 500% and a minimum of 32%, allowing efficient signal transfer with minimal loss. It also exhibits low coupling capacitance and excellent immunity to common mode interference, which are critical for maintaining signal integrity in noisy industrial environments.
This device supports a maximum input current of 50 mA and a maximum forward voltage of 1.5 V. Typical rise and fall times are 3.5 microseconds and 5 microseconds respectively, enabling fast response in control and signal processing circuits.
Its operating temperature range from -55°C to 100°C allows it to function effectively in demanding industrial, laboratory, HVAC control, and power electronics use cases. Designed for through hole mounting with a 4-pin DIP package, it fits seamlessly in legacy and current PCB designs.
The SFH628A-4 complies with international safety and performance standards such as UL1577, IEC 60065, DIN EN 60747-5-5 (VDE0884-5), and BSI IEC 60950, ensuring its suitability for use in certified electronic products.
Features GaAs LED coupled to silicon phototransistor for efficient optical isolation. High current transfer ratio minimizes input power requirements. Low coupling capacitance reduces signal distortion and noise coupling.
High isolation voltage provides strong protection between input and output circuits. Wide operating temperature range for versatile environmental compatibility. Meets multiple international standards supporting quality and safety compliance.
Through hole DIP package simplifies installation on various electronic assemblies.
This optocoupler is ideal for applications including industrial automation, power supply isolation, consumer electronics, instrumentation, and signal isolation where AC input sensing is critical. Explore more electronic components and Optocoupler options at EnvMart to build reliable and high-performance circuits.
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Frequently Asked Questions
The maximum operating temperature of this model is 100°C.
It supports AC input current.
The maximum input current is 50 mA.
The typical rise time is 3.5 microseconds.
The typical fall time is 5 microseconds.
The maximum forward voltage is 1.5 V.
The current transfer ratio ranges from a minimum of 32% to a maximum of 500%.
This model has 4 pins.
It uses a through hole mounting type.
It complies with UL1577, IEC 60065, DIN EN 60747-5-5 (VDE0884-5), and BSI IEC 60950.
The country of origin is Malaysia.
It is suitable for industrial automation, power supply isolation, consumer electronics, instrumentation, and signal isolation.
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