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EL3H7(F)(TA)-G
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Product Detailed Parameters
- Description：OPTOISO 3.75KV 1CH TRANS 4-SSOP
- Series：-
- Mfr：Everlight Electronics Co Ltd
- Package：Tape & Reel (TR)
- Number of Channels：1
- Voltage - Isolation：3750Vrms
- Current Transfer Ratio (Min)：150% @ 5mA
- Current Transfer Ratio (Max)：300% @ 5mA
- Turn On / Turn Off Time (Typ)：-
- Rise / Fall Time (Typ)：5µs, 3µs
- Input Type：DC
- Output Type：Transistor
- Voltage - Output (Max)：80V
- Current - Output / Channel：50mA
- Voltage - Forward (Vf) (Typ)：1.2V
- Current - DC Forward (If) (Max)：50 mA
- Vce Saturation (Max)：200mV
- Operating Temperature：-55°C ~ 110°C
- Mounting Type：Surface Mount
- Package / Case：4-SOIC (0.173", 4.40mm Width)
- Supplier Device Package：4-SSOP
- Grade：-
- Qualification：-
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Overview
The EL3H7(F)(TA)-G is a single-channel transistor output optocoupler from Everlight Electronics. It features an infrared emitting diode optically coupled to an NPN phototransistor detector, encapsulated in green compound within a SOIC-4 package. Key electrical parameters include a maximum collector-emitter voltage of 80V and a continuous forward current of 50mA. The device provides 3750Vrms isolation voltage and operates across a temperature range of -55°C to +110°C. Typical rise and fall times are 5µs and 3µs respectively, with a typical forward voltage of 1.2V.
Feature Summary
- High isolation voltage capability of 3750Vrms for safe signal transmission between isolated circuits
- Wide operating temperature range extending from -55°C to +110°C for robust environmental performance
- Compact surface-mount SOIC-4 packaging designed for automated assembly and space-constrained designs
Applications
- Industrial control systems requiring galvanic isolation
- Consumer appliances with high-voltage interface requirements
- Computer peripheral interfaces needing signal isolation
Procurement Notes
Verify the specific Current Transfer Ratio (CTR) bin, indicated by the suffix 'F', against design requirements as this parameter varies significantly among EL3H7 variants. Confirm the tape-and-reel packaging format associated with the TA suffix matches your manufacturing equipment capabilities. Ensure compliance with RoHS directives and check for any regional supply restrictions or limited availability status before finalizing procurement plans.
Selection Notes
Select this component when a standard NPN phototransistor output is required alongside high isolation voltage. The F suffix denotes a specific CTR range; compare datasheet tables for exact min/max values at specified test currents. Consider thermal management due to the small SOIC-4 footprint. Verify that the 80V output voltage rating exceeds the load requirements in the target application circuit.
Part Context
This part belongs to the EL3H7-G series of transistor output optocouplers manufactured by Everlight Electronics. The series utilizes an infrared LED coupled to a phototransistor. Variants differ primarily by Current Transfer Ratio (CTR) bins (A, B, C, D, E, F, G, H, J) and packaging options (tube vs. tape and reel). The EL3H7-F represents one such CTR specification within this family.
Replacement Considerations
Direct substitutes may include other EL3H7 variants with different CTR bins if electrical characteristics allow. Generic replacements like PC817 or 4N35 offer similar functionality but require verification of isolation voltage, speed, and pin compatibility.
