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EL817(M)(B)
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Product Detailed Parameters
- Description：OPTOISOLATOR 5KV 1CH TRANS 4-DIP
- Series：-
- Mfr：Everlight Electronics Co Ltd
- Package：Tube
- Number of Channels：1
- Voltage - Isolation：5000Vrms
- Current Transfer Ratio (Min)：130% @ 5mA
- Current Transfer Ratio (Max)：260% @ 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：Through Hole
- Package / Case：4-DIP (0.400", 10.16mm)
- Supplier Device Package：4-DIP
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Overview
The EL817(M)(B) is a single-channel transistor output optocoupler manufactured by Everlight Electronics Co Ltd. It features an infrared emitting diode optically coupled to an NPN phototransistor detector housed in a 4-pin DIP package with wide lead spacing of 0.4 inches (10.16mm). The device provides high isolation voltage between input and output terminals, rated at 5000 Vrms. Key electrical parameters include a collector-emitter breakdown voltage minimum of 35V, a maximum forward current of 50mA, and a typical operating temperature range from -55°C to +110°C. The component is RoHS compliant and halogen-free.
Feature Summary
- High isolation voltage capability between input and output circuits
- Wide-lead spacing configuration for enhanced safety clearance
- RoHS compliant and halogen-free construction
Applications
- Programmable controllers
- System appliances and measuring instruments
- Telecommunication equipment
- Home appliances such as fan heaters
- Signal transmission between circuits of different potentials and impedances
Procurement Notes
Verify the specific suffix codes against official datasheets to confirm lead form and CTR grade. Ensure the wide-lead spacing requirement matches the target PCB footprint. Confirm compliance certifications required for the end application. Check for any obsolete status or lifecycle changes before finalizing procurement plans.
Selection Notes
Select this variant when wide lead spacing is necessary for increased creepage distance requirements. Verify that the NPN phototransistor output type aligns with the load interface design. Consider the operating temperature range limits for the intended environmental conditions. Ensure the isolation voltage rating meets the safety standards of the system architecture.
Part Context
This component belongs to the EL817 series of photocouplers produced by Everlight Electronics. The series includes various packaging options and CTR grades. The M suffix specifically denotes the wide-lead spacing variant within the standard DIP-4 form factor family.
Replacement Considerations
Direct substitutes may include other EL817 variants with compatible pinouts but verify lead spacing differences. Cross-reference with generic 4-pin DIP optocouplers ensuring matching isolation and CTR specifications.
