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EL817(S)(A)(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)：80% @ 5mA
- Current Transfer Ratio (Max)：160% @ 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)(A)(TA) is a single-channel transistor output optocoupler manufactured by Everlight Electronics. It features an infrared emitting diode optically coupled to an NPN phototransistor, housed in a compact surface-mount 4-SMD package with鸥翼 (gull-wing) leads. The device provides high isolation voltage of 5000 Vrms between input and output circuits. It operates within a temperature range of -55°C to 110°C and supports a maximum forward current of 60 mA. The component is RoHS compliant and UL recognized.
Feature Summary
- High isolation voltage capability for safe circuit separation
- Compact surface-mount packaging for automated assembly
- RoHS compliant construction without lead content
- Single-channel configuration for DC input applications
Applications
- Industrial control systems requiring signal isolation
- Power supply feedback loops
- Microcontroller interface circuits
- Communication equipment isolation barriers
Procurement Notes
Verify the specific suffix TA indicates tape and reel packaging type I when sourcing. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure the supplier provides valid UL recognition numbers for safety certification requirements. Check for any obsolete status updates as product lifecycles may change.
Selection Notes
Select this component for applications requiring surface-mount technology compatibility with high isolation standards. Compare CTR specifications against load requirements to ensure proper switching performance. Verify package dimensions match PCB footprint constraints. Consider thermal management capabilities within the specified operating temperature range for reliable operation.
Part Context
This part belongs to the EL817 series of photocouplers from Everlight Electronics. The series includes various package options such as DIP-4 and SMD configurations. Different suffixes denote variations in lead spacing, bending, or packaging methods like tape and reel. The core technology remains consistent across variants with infrared LED and phototransistor coupling.
Replacement Considerations
Equivalent parts include other 4-pin SMD optocouplers with similar isolation ratings and pinouts. Verify electrical parameters such as CTR and breakdown voltage before substitution. Ensure mechanical dimensions are compatible with existing PCB layouts. Check for identical safety approvals if required by the application.
