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Product Detailed Parameters
- Description：OPTOISO 3.75KV DARL W/BASE 6-SMD
- Series：-
- Mfr：Broadcom Limited
- Package：Tape & Reel (TR)
- Number of Channels：1
- Voltage - Isolation：3750Vrms
- Current Transfer Ratio (Min)：200% @ 10mA
- Current Transfer Ratio (Max)：1000% @ 10mA
- Turn On / Turn Off Time (Typ)：5µs, 150µs
- Rise / Fall Time (Typ)：-
- Input Type：DC
- Output Type：Darlington with Base
- Voltage - Output (Max)：7V
- Current - Output / Channel：60mA
- Voltage - Forward (Vf) (Typ)：1.4V
- Current - DC Forward (If) (Max)：20 mA
- Vce Saturation (Max)：-
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Surface Mount
- Package / Case：6-SMD, Gull Wing
- Supplier Device Package：6-SMD
- Grade：-
- Qualification：-
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Overview
The Broadcom Limited 4N45-500E is a high-speed phototransistor output optocoupler featuring a single channel in a surface-mount (SMD/SMT) PDIP-6 Gull Wing package. It provides an insulation voltage of 2500 Vrms and supports data rates up to 100 kb/s. Key electrical parameters include a forward current of 80 mA, a forward voltage of 1.2 V, and a reverse voltage rating of 6 V. The device offers a current transfer ratio of 2000% and a maximum collector current of 100 mA. Power dissipation is rated at 250 mW, with an operating temperature range from -55°C to +100°C.
Feature Summary
- High-speed operation with a data rate of 100 kb/s for efficient signal transmission.
- Robust electrical isolation capability rated at 2500 Vrms between input and output circuits.
- High current transfer ratio of 2000% ensures strong output drive from the phototransistor.
- Surface-mount (PDIP-6 Gull Wing) configuration facilitates automated PCB assembly.
Applications
- Industrial automation control systems requiring galvanic isolation
- Power supply feedback loops for voltage regulation
- Signal interfacing between microcontrollers and high-voltage loads
Procurement Notes
This specific part number (4N45-500E) is listed as End-of-Life (EOL) / Discontinued by the manufacturer. Verify availability status carefully as distribution channels may list limited stock or obsolete conditions. Ensure the ordering part number matches the required insulation voltage (2500 Vrms) and SMD package style specifications for your design.
Selection Notes
Select this component when a high current transfer ratio is critical for driving subsequent stages directly. The 2500 Vrms isolation rating suits applications demanding significant noise immunity. Consider the 100 kb/s speed limit for timing-sensitive designs. Verify that the 80 mA forward current requirement aligns with the available drive voltage in the source circuit.
Part Context
This device belongs to the 4N series of high-speed optocouplers manufactured by Broadcom Limited. It utilizes a phototransistor output architecture distinct from logic-output or Darlington variants within the same family. The SMD PDIP-6 Gull Wing package provides surface-mount mounting compatibility.
