SFH6943
Vishay Semiconductors
VISHAY
Optocoupler, Phototransistor Output, SOT223/10, Quad
Channel
Features
• Transistor Optocoupler in SOT223/10 Package
• End Stackable, 1.27 mm Spacing
• Low Current Input
• Very High CTR, 150 % Typical at IF = 1 mA,
A1
A2
10 E1
9 E2
V
CE = 5 V
• Good CTR Linearity Versus Forward Current
• Minor CTR Degradation
Com. C3
A4
8 Com. C
7 E3
• High Collector-Emitter Voltage, VCEO=70 V
• Low Coupling Capacitance
6 E4
A5
i179077
• High Common Mode Transient Immunity
• Isolation Test Voltage: 1768 VRMS
output. The device consists of four phototransistors
as detectors. Each channel is individually controlled.
The optocoupler is housed in a SOT223/10 package.
All the cathodes of the input LEDs and all the collec-
tors of the output transistors are common enabling a
pin count reduction from 16 pins to 10 pins-a signifi-
cant space savings as compared to four channels that
are electrically isolated individually.
Agency Approvals
• UL File #E76222 System Code V
• CSA 93751
Applications
Telecommunication
SMT
Order Information
PCMCIA
Part
Remarks
Instrumentation
SFH6943-2
SFH6943-3
SFH6943-4
CTR 63 - 200 %, SMD-10
CTR 100 - 320 %, SMD-10
CTR 160 - 500 %, SMD-10
Description
The SFH6943 is a four channel mini-optocoupler suit-
able for high density packaged PCB application. It
has a minimum of 1768 VRMS isolation from input to
For additional information on the available options refer to
Option Information.
Absolute Maximum Ratings
T
= 25 °C, unless otherwise specified
amb
Stresses in excess of the absolute Maximum Ratings can cause permanent damage to the device. Functional operation of the device is
not implied at these or any other conditions in excess of those given in the operational sections of this document. Exposure to absolute
Maximum Rating for extended periods of the time can adversely affect reliability.
Input
Parameter
Test condition
Symbol
Value
3
Unit
V
Reverse voltage
V
R
DC forward current
I
5
mA
mA
mW
F
Surge forward current
Total power dissipation
t
≤ 10 µs
I
100
10
P
FSM
P
diss
Document Number 83688
Rev. 1.3, 20-Apr-04
www.vishay.com
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