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ISP521-4BLSM is listed in the Transistor, Photovoltaic Output Optoisolators range at ChipApex. The manufacturer field lists Isocom Components 2004 LTD. Its product description is OPTOISO 5.3KV 4CH TRANS 16-SMD. Review the specifications below when checking this part for your BOM.
Transistor, Photovoltaic Output Optoisolators specifications for ISP521-4BLSM
- Description：OPTOISO 5.3KV 4CH TRANS 16-SMD
- Series：ISP521-4
- Mfr：Isocom Components 2004 LTD
- Package：Tube
- Number of Channels：4
- Voltage - Isolation：5300Vrms
- Current Transfer Ratio (Min)：200% @ 1mA
- Current Transfer Ratio (Max)：600% @ 1mA
- Turn On / Turn Off Time (Typ)：-
- Rise / Fall Time (Typ)：4µs, 3µs
- Input Type：DC
- Output Type：Transistor
- Voltage - Output (Max)：55V
- Current - Output / Channel：50mA
- Voltage - Forward (Vf) (Typ)：1.15V
- Current - DC Forward (If) (Max)：50 mA
- Vce Saturation (Max)：400mV
- Operating Temperature：-30°C ~ 100°C
- Mounting Type：Surface Mount
- Package / Case：16-SMD, Gull Wing
- Supplier Device Package：16-SMD
- Grade：-
- Qualification：-
Transistor, Photovoltaic Output Optoisolators datasheet and documents for ISP521-4BLSM
Transistor, Photovoltaic Output Optoisolators Overview
The ISP521-4BLSM is a quad-channel optocoupler manufactured by Isocom Components. It features four independent channels within a single package, providing electrical isolation between input and output circuits. The device utilizes an infrared LED coupled to a phototransistor for signal transmission. Key specifications include a maximum forward voltage of 1.3V per channel and a typical current transfer ratio of 6%. It operates within a temperature range of -30°C to 100°C and offers an isolation voltage of 5300Vrms. The component is housed in a surface-mount DIP package with 16 pins.
Transistor, Photovoltaic Output Optoisolators Feature Summary
- Quad-channel configuration for multi-circuit isolation
- High isolation voltage rating for safety
- Surface-mount packaging for automated assembly
Transistor, Photovoltaic Output Optoisolators Applications
- Industrial control systems
- Power supply protection
- Smart metering applications
Transistor, Photovoltaic Output Optoisolators Procurement Notes
Verify the specific suffix 'BLSM' against official Isocom documentation to confirm pinout and mechanical dimensions. Ensure compatibility with existing PCB footprints. Confirm lead-free status if required by project specifications. Cross-reference with TLP521-4 equivalents only if datasheet parameters match exactly.
Transistor, Photovoltaic Output Optoisolators Selection Notes
Select this component when multiple isolated channels are required in a compact form factor. Consider the 6% CTR for driving loads directly or via amplification. Evaluate thermal management requirements given the 100°C maximum operating temperature. Compare isolation voltage ratings against system safety standards.
Transistor, Photovoltaic Output Optoisolators Part Context
Isocom Components specializes in optocouplers and photoelectric switches. The ISP521 series is designed as a replacement for legacy components like the Toshiba TLP521. These devices are widely used in industrial and consumer electronics where galvanic isolation is critical for noise reduction and safety.
Transistor, Photovoltaic Output Optoisolators Replacement Considerations
TLP521-4 is a common functional equivalent. Verify pin compatibility and parameter tolerances before substitution.
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