Specification	LDA211STR

Current - DC Forward (If) (Max) [Max]	1 mA
Current Transfer Ratio (Max)	30000 %
Current Transfer Ratio (Min)	300 %
Input Type	DC
Mounting Type	Surface Mount
Number of Channels	2
Operating Temperature [Max]	85 °C
Operating Temperature [Min]	-40 C
Output Type	Darlington
Supplier Device Package	8-SMD
Turn On / Turn Off Time (Typ) [custom]	345 µs
Turn On / Turn Off Time (Typ) [custom]	8 µs
Vce Saturation (Max) [Max]	1 V
Voltage - Isolation	3750 Vrms
Voltage - Output (Max) [Max]	30 V

LDA211 Series

Opto Unidirect Input Single-Trans Output

Part	Supplier Device Package	Vce Saturation (Max) [Max]	Input Type	Current Transfer Ratio (Min)	Number of Channels	Current Transfer Ratio (Max)	Turn On / Turn Off Time (Typ) [custom]	Turn On / Turn Off Time (Typ) [custom]	Operating Temperature [Max]	Operating Temperature [Min]	Output Type	Voltage - Isolation	Voltage - Output (Max) [Max]	Current - DC Forward (If) (Max) [Max]	Mounting Type	Package / Case
LITTELFUSE LDA211STR	8-SMD	1 V	DC	300 %	2	30000 %	345 µs	8 µs	85 °C	-40 C	Darlington	3750 Vrms	30 V	1 mA	Surface Mount
LITTELFUSE LDA211	8-DIP	1 V	DC	300 %	2	30000 %	345 µs	8 µs	85 °C	-40 C	Darlington	3750 Vrms	30 V	1 mA	Through Hole	8-DIP (0.300" 7.62mm)
LITTELFUSE LDA211S	8-SMD	1 V	DC	300 %	2	30000 %	345 µs	8 µs	85 °C	-40 C	Darlington	3750 Vrms	30 V	1 mA	Surface Mount

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$	Updated

Digikey	N/A	0	$ 1.09	1m+

Description

General part information

LDA211 Series

Single and dual OptoMOS® products provide an optically isolated means of switching control circuits. Each package contains one or two phototransistors that are optically coupled with LEDs. Shunt resistors can be used to adjust the threshold current required to activate the output circuitry. The LDA contains sensors that allow for either AC or DC input circuits and single transistor or Darlington transistor outputs. Single and dual optocouplers are ideal for Telecom, Industrial Control and instrumentation circuits, where electrical isolation of control circuitry is crucial.