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EL3H7(F)(TB)-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)(TB)-G is a single-channel transistor output optocoupler manufactured by Everlight Electronics. It integrates an infrared emitting diode with an NPN phototransistor detector, encapsulated in green compound within a surface-mount package. The device provides electrical isolation with a rated insulation voltage of 3750 Vrms. Key electrical parameters include a maximum collector-emitter voltage of 80 V and a maximum DC forward current of 50 mA. The unit operates within a temperature range of -55°C to +110°C and features a typical forward voltage of 1.2 V.
Feature Summary
- Provides high-voltage electrical isolation between input and output circuits
- Integrates an infrared LED with an NPN phototransistor for signal transmission
- Designed for surface-mount assembly in compact electronic systems
Applications
- Industrial control systems requiring circuit isolation
- Signal transmission across isolated boundaries in measurement equipment
- Power supply feedback loops for safety isolation
Procurement Notes
Verify the specific Current Transfer Ratio (CTR) bin, as the suffix indicates a 150-300% range. Confirm the package type matches the design requirements, noting that this variant may be listed as discontinued or restricted in some distributor catalogs. Ensure the ordering part number includes the correct suffix for the desired CTR and packaging format before finalizing procurement.
Selection Notes
Select this component when a standard NPN phototransistor output is required for digital switching applications. The 3750 Vrms isolation rating supports safety standards for mains-connected equipment. Consider the operating temperature range and package dimensions to ensure compatibility with the target PCB layout and thermal environment.
Part Context
This device belongs to the EL3H7-G series of transistor output optocouplers from Everlight Electronics. The series offers various CTR bins and packaging options to suit different production needs. The EL3H7(F)(TB)-G specifically denotes a particular CTR bin and reel packaging configuration within this family of single-channel isolators.
Replacement Considerations
Cross-reference with other EL3H7 variants such as EL3H7(C)(TB)-VG or EL3H7(E)(EB)-G if different CTR bins are acceptable. Verify pinout compatibility and isolation voltage ratings before substituting with generic NPN phototransistor optocouplers.
