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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(BL-TPL,F) is a single-channel transistor output optocoupler manufactured by Toshiba Semiconductor and Storage. It features a gallium arsenide infrared emitting diode optically coupled to a phototransistor, housed in a plastic DIP-4 package. The device provides an isolation voltage of 3750 Vrms minimum and a collector-emitter breakdown voltage of 80 V minimum. The BL rank specifies a nominal current transfer ratio of 50% minimum. It operates within a temperature range of -25 °C to 85 °C and supports a maximum forward current of 50 mA.
Feature Summary
- Integrates a GaAs infrared LED with a phototransistor for electrical isolation
- Provides high insulation voltage capability for safety-critical applications
- Features a compact plastic DIP-4 package suitable for surface mount assembly
Applications
- AC/DC input modules for programmable controllers
- Office machine interface circuits
- Telecommunication equipment signal isolation
Procurement Notes
Verify the specific suffix configuration against official Toshiba documentation to ensure correct packaging and compliance status. Confirm that the BL rank meets the required current transfer ratio specifications for the target application. Check for any recent product change notifications or lifecycle status updates prior to finalizing procurement orders.
Selection Notes
Select this component when a low-cost, general-purpose transistor output optocoupler is required for digital signal isolation. Ensure the application voltage does not exceed the 80 V collector-emitter rating. Consider the 50% CTR minimum if driving logic inputs directly without amplification. Verify thermal management requirements for the operating environment.
Part Context
This part belongs to the TLP121 series of mini flat couplers designed for surface mount technology. It is part of Toshiba's portfolio of photocouplers intended for industrial and consumer electronics where galvanic isolation between control and power circuits is necessary. The series offers various ranks to accommodate different current transfer ratio requirements.
Replacement Considerations
Consult official Toshiba cross-reference documents for verified substitute part numbers. Generic equivalents may not match the specific isolation voltage or current transfer ratio characteristics.
