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Product Detailed Parameters
- Description：OPTOISO 3.75KV 1CH TRANS 6-MFSOP
- Series：-
- Mfr：Toshiba Semiconductor and Storage
- Package：Tape & Reel (TR)
- Number of Channels：1
- Voltage - Isolation：3750Vrms
- Current Transfer Ratio (Min)：50% @ 5mA
- Current Transfer Ratio (Max)：600% @ 5mA
- Turn On / Turn Off Time (Typ)：3µs, 3µs
- Rise / Fall Time (Typ)：2µs, 3µs
- Input Type：DC
- Output Type：Transistor
- Voltage - Output (Max)：80V
- Current - Output / Channel：50mA
- Voltage - Forward (Vf) (Typ)：1.15V
- Current - DC Forward (If) (Max)：50 mA
- Vce Saturation (Max)：400mV
- Operating Temperature：-55°C ~ 100°C
- Mounting Type：Surface Mount
- Package / Case：6-SMD (4 Leads), Gull Wing
- Supplier Device Package：6-MFSOP, 4 Lead
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Overview
The TLP121(GRH,F) is a single-channel transistor output optocoupler manufactured by Toshiba Semiconductor and Storage. It integrates a gallium arsenide infrared emitting diode with a phototransistor in a mini flat surface-mount package. The device provides an isolation voltage of 3750 Vrms minimum and a collector-emitter breakdown voltage of 80 V minimum. It features a current transfer ratio of 50% minimum for standard rank and 100% minimum for the GR rank. The component operates within a temperature range of -25°C to 85°C.
Feature Summary
- Integrates a GaAs infrared LED with a phototransistor for optical signal transmission
- Provides high electrical isolation via a mini flat surface-mount plastic package
- Features UL recognition for safety compliance in industrial applications
Applications
- Office machines such as copiers and laser beam printers
- Programmable controllers for industrial automation
- AC/DC input modules for data acquisition systems
- Telecommunication equipment interface circuits
Procurement Notes
Verify the specific suffix (GRH, F) against official Toshiba documentation to confirm exact binning and tape-and-reel specifications. Ensure the procurement channel sources components directly from authorized distributors to guarantee authenticity and traceability. Confirm RoHS status and lead times through verified supplier channels prior to ordering.
Selection Notes
Select this component when a compact surface-mount solution is required for low-speed digital isolation. The transistor output type is suitable for interfacing microcontrollers with logic circuits. Consider the current transfer ratio requirements; the GR rank offers higher gain than the standard rank. Ensure the operating voltage does not exceed the 80V collector-emitter limit.
Part Context
This part belongs to the TLP121 series of mini flat couplers designed for space-constrained PCB layouts. It serves as a cost-effective isolation barrier in general-purpose electronic systems. The series is widely utilized in legacy and modern designs requiring reliable galvanic separation between input and output stages.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided source material. Verify pin compatibility and electrical parameters before considering alternative manufacturers.
