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EL817(S)(TA)
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Product Detailed Parameters
- Description：OPTOISOLATOR 5KV 1CH TRANS 4-SMD
- Series：-
- Mfr：Everlight Electronics Co Ltd
- Package：Tape & Reel (TR)
- Number of Channels：1
- Voltage - Isolation：5000Vrms
- Current Transfer Ratio (Min)：50% @ 5mA
- Current Transfer Ratio (Max)：600% @ 5mA
- Turn On / Turn Off Time (Typ)：-
- Rise / Fall Time (Typ)：4µs, 3µs
- Input Type：DC
- Output Type：Transistor
- Voltage - Output (Max)：35V
- Current - Output / Channel：50mA
- Voltage - Forward (Vf) (Typ)：1.2V
- Current - DC Forward (If) (Max)：60 mA
- Vce Saturation (Max)：200mV
- Operating Temperature：-55°C ~ 110°C
- Mounting Type：Surface Mount
- Package / Case：4-SMD, Gull Wing
- Supplier Device Package：4-SMD
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Overview
The EL817(S)(TA) is a single-channel transistor output optocoupler manufactured by Everlight Electronics Co Ltd. It consists of an infrared emitting diode optically coupled to an NPN phototransistor detector. The device features a surface-mount 4-pin SMD package and provides high isolation voltage between input and output terminals. Key electrical parameters include a collector-emitter breakdown voltage of 35 V, a maximum forward current of 60 mA, and a maximum dark current of 100 nA. The unit operates within a temperature range of -55 °C to +110 °C.
Feature Summary
- High isolation voltage capability between input and output circuits
- Compact small outline surface mount package design
- Compliant with lead-free and RoHS environmental standards
Applications
- Signal isolation in DC input circuits
- General purpose optoisolation applications
- Industrial control system interfaces
Procurement Notes
Verify the specific suffix codes against official Everlight documentation to confirm exact packaging type and compliance status. Confirm availability as distribution channels may list varying stock levels or end-of-life statuses for this component series. Ensure the selected variant matches the required surface mount footprint and thermal specifications for the target application.
Selection Notes
Select this component when a compact, single-channel transistor output isolator is required for surface mount assembly. Consider the 5000 Vrms isolation rating and operating temperature range to ensure compatibility with the system's electrical stress and environmental conditions. Verify that the NPN phototransistor output configuration aligns with the downstream circuit requirements.
Part Context
This part belongs to the EL817 series of optocouplers from Everlight Electronics. The series typically includes variants with different lead configurations (DIP and SMD) and insulation clearance distances. The EL817(S) designation specifically indicates the surface mount package style, distinguishing it from through-hole DIP versions within the same product family.
Replacement Considerations
Direct substitutes within the EL817 family include EL817(S)(C)(TA) and EL817(S)(B)(TA). These variants share similar core characteristics but may differ in current transfer ratio ranges or specific regulatory approvals. Verify pinout compatibility and isolation voltage ratings before substitution.
