1458 Optocoupler Datasheet

When reading the datasheet for a standard transistor optocoupler, these are the critical parameters you need to check to ensure it fits your circuit.

| Parameter | Symbol | Conditions | Min | Typ | Max | Unit | |-----------|--------|------------|-----|-----|-----|------| | Current Transfer Ratio (CTR) | CTR | ( I_F = 5 mA, V_CE = 5 V ) | 50 | 300 | 600 | % | | Collector-emitter saturation | ( V_CE(sat) ) | ( I_F = 10 mA, I_C = 2 mA ) | - | 0.2 | 0.4 | V | | Isolation resistance | ( R_ISO ) | ( V_IO = 500 V ) | ( 10^11 ) | - | - | Ω | | Isolation capacitance | ( C_ISO ) | ( V_IO = 0, f = 1 MHz ) | - | 1 | - | pF | 1458 optocoupler datasheet

| Application | Recommended Part | Key Feature | |-------------|------------------|--------------| | General purpose, low speed | 4N35, PC817 | Cheap, CTR ≥ 100% | | High CTR (> 500%) | CNY17-4 | Can be driven from µA currents | | High speed (1 Mbit/s) | 6N137 | Logic output, t_pd < 100 ns | | Dual channel, high voltage | HCPL-2531 | Two independent optocouplers | | Zero-crossing SSR trigger | MOC3063 | Triac driver output | When reading the datasheet for a standard transistor

: Provides high common-mode transient immunity (CMR) of at least 50 kV/µs . low speed | 4N35