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Product Detailed Parameters
- Description：OPTOISO 3.75KV 1CH TRANS 6-MFSOP
- Series：-
- Mfr：Toshiba Semiconductor and Storage
- Package：Bulk
- Number of Channels：1
- Voltage - Isolation：3750Vrms
- Current Transfer Ratio (Min)：50% @ 5mA
- Current Transfer Ratio (Max)：150% @ 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(Y,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 compact plastic DIP-4 package. The device provides electrical isolation between input and output circuits, featuring a minimum collector-emitter breakdown voltage of 80V and an isolation voltage rating of 3750Vrms. It supports a nominal current transfer ratio of 100% for the GB rank and operates within a temperature range of -25°C to 85°C.
Feature Summary
- Integrates a GaAs infrared LED with a phototransistor for signal transmission
- Provides high-voltage electrical isolation via a 3750Vrms dielectric barrier
- Offers high current transfer efficiency with a 100% minimum CTR rank
Applications
- Office machines
- Programmable controllers
- AC/DC input modules
- Telecommunication equipment
Procurement Notes
Verify the specific suffix (Y,F) against official Toshiba documentation to confirm lead-free status and packaging configuration. Ensure compliance with RoHS directives if required for the target market. Confirm that the DIP-4 package matches the PCB footprint requirements. Validate the operating temperature range against environmental specifications.
Selection Notes
Select this component when galvanic isolation is required for low-speed digital signals in industrial or office automation environments. The transistor output type is suitable for interfacing with logic circuits. Consider the 80V collector-emitter voltage limit for load switching applications. Verify that the DIP-4 form factor fits the available board space constraints.
Part Context
This part belongs to the TLP121 series of mini flat couplers designed for surface mount assembly. The series is characterized by small outline dimensions and robust isolation capabilities. It serves as a standard interface solution for connecting control circuits to higher voltage domains safely.
Replacement Considerations
Check for direct equivalents such as the TLP121(GR-TPR) or TLP121(D4-GB-LF4). Verify pinout compatibility and isolation voltage ratings before substitution.
