Digital Isolators

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Skyworks CMOS digital isolators are mixed-signal IC solutions that leverage Skyworks' superior isolation and high-voltage expertise to enhance power system performance, flexibility, and reliability while reducing system size and cost. The entire isolation portfolio supports isolation voltages up to 5kV. Skyworks Si84xx digital isolators are the industry's highest-performance, easiest-to-use, and lowest-cost line of 2.5kVrms to 5.0kVrms rated digital isolators. These digital isolators are 10 times more reliable than optocouplers. The Si86xx family is the industry's highest-performing, widest channel count series of unidirectional and bidirectional isolators supporting up to reinforced 5kVrms isolation ratings. Based on pCMOS isolation technology, Si86xx isolators enable robust operation in harsh industrial applications.

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Part #

Digital Isolators 2.5 kV 2 forward & 2 reverse 4-channel isolator

SI8642BB-B-IS1
Skyworks Solutions, Inc.
1: $5.25
6,653In Stock

Mfr. Part No.
SI8642BB-B-IS1

Mouser Part No
634-SI8642BB-B-IS1

Skyworks Solutions, Inc.

Digital Isolators 2.5 kV 2 forward & 2 reverse 4-channel isolator

Learn More

Datasheet

6,653In Stock

$5.25

$3.96

$3.46

$3.20

View

Min.: 1
Mult.: 1

Si864x

SMD/SMT

SOIC-Narrow-16

4 Channel

Unidirectional

150 Mb/s

2500 Vrms

Capacitive Coupling

5.5 V

2.375 V

8 ns

- 40 C

+ 125 C

AEC-Q100

Tube

Digital Isolators 3.75 kV 2 forward & 2 reverse 4-channel isolator

SI8642BC-B-IS1
Skyworks Solutions, Inc.
1: $5.64
1,529In Stock

Mfr. Part No.
SI8642BC-B-IS1

Mouser Part No
634-SI8642BC-B-IS1

Skyworks Solutions, Inc.

Digital Isolators 3.75 kV 2 forward & 2 reverse 4-channel isolator

Learn More

Datasheet

1,529In Stock

$5.64

$4.27

$3.73

$3.45

View

Min.: 1
Mult.: 1

Si864x

SMD/SMT

SOIC-Narrow-16

4 Channel

Unidirectional

150 Mb/s

3750 Vrms

Capacitive Coupling

5.5 V

2.375 V

8 ns

- 40 C

+ 125 C

AEC-Q100

Tube

Digital Isolators 3.75 kV 2 forward & 2 reverse 4-channel isolator

SI8642BC-B-IS1R
Skyworks Solutions, Inc.
1: $5.64
4,262In Stock

Mfr. Part No.
SI8642BC-B-IS1R

Mouser Part No
634-SI8642BC-B-IS1R

Skyworks Solutions, Inc.

Digital Isolators 3.75 kV 2 forward & 2 reverse 4-channel isolator

Learn More

Datasheet

4,262In Stock

Cut Tape

$5.64

$4.27

$3.92

$3.54

View

Reel

$3.06

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Si864x

SMD/SMT

SOIC-Narrow-16

4 Channel

Unidirectional

150 Mb/s

3750 Vrms

Capacitive Coupling

5.5 V

2.375 V

8 ns

- 40 C

+ 125 C

AEC-Q100

Reel, Cut Tape, MouseReel

Digital Isolators 5 kV 2 forward & 2 reverse 4-channel isolator

SI8642BD-B-ISR
Skyworks Solutions, Inc.
1: $5.80
661In Stock
1,250Expected 29/6/2026

Mfr. Part No.
SI8642BD-B-ISR

Mouser Part No
634-SI8642BD-B-ISR

Skyworks Solutions, Inc.

Digital Isolators 5 kV 2 forward & 2 reverse 4-channel isolator

Learn More

Datasheet

661In Stock

1,250Expected 29/6/2026

Cut Tape

$5.80

$4.52

$4.18

$3.81

Reel

$3.38

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,250

Si864x

SMD/SMT

SOIC-Wide-16

4 Channel

Unidirectional

150 Mb/s

5000 Vrms

Capacitive Coupling

5.5 V

2.375 V

8 ns

- 40 C

+ 125 C

AEC-Q100

Reel, Cut Tape, MouseReel

Digital Isolators 3.75 kV 2 forward & 2 reverse 4-channel isolator

SI8642EC-B-IS1
Skyworks Solutions, Inc.
1: $5.64
671In Stock

Mfr. Part No.
SI8642EC-B-IS1

Mouser Part No
634-SI8642EC-B-IS1

Skyworks Solutions, Inc.

Digital Isolators 3.75 kV 2 forward & 2 reverse 4-channel isolator

Learn More

Datasheet

671In Stock

$5.64

$4.27

$3.73

$3.45

View

Min.: 1
Mult.: 1

Si864x

SMD/SMT

SOIC-Narrow-16

4 Channel

Unidirectional

150 Mb/s

3750 Vrms

Capacitive Coupling

5.5 V

2.375 V

8 ns

- 40 C

+ 125 C

AEC-Q100

Tube

Digital Isolators 5 kV 2 forward & 2 reverse 4-channel isolator

SI8642ED-B-IS
Skyworks Solutions, Inc.
1: $6.02
2,758In Stock

Mfr. Part No.
SI8642ED-B-IS

Mouser Part No
634-SI8642ED-B-IS

Skyworks Solutions, Inc.

Digital Isolators 5 kV 2 forward & 2 reverse 4-channel isolator

Learn More

Datasheet

2,758In Stock

$6.02

$4.57

$4.00

$3.71

View

Min.: 1
Mult.: 1

Si864x

SMD/SMT

SOIC-Wide-16

4 Channel

Unidirectional

150 Mb/s

5000 Vrms

Capacitive Coupling

5.5 V

2.375 V

8 ns

- 40 C

+ 125 C

AEC-Q100

Tube

Digital Isolators 5 kV 2 forward & 2 reverse 4-channel isolator

SI8642ED-B-ISR
Skyworks Solutions, Inc.
1: $5.80
4,630In Stock

Mfr. Part No.
SI8642ED-B-ISR

Mouser Part No
634-SI8642ED-B-ISR

Skyworks Solutions, Inc.

Digital Isolators 5 kV 2 forward & 2 reverse 4-channel isolator

Learn More

Datasheet

4,630In Stock

Cut Tape

$5.80

$4.52

$4.20

$3.81

Reel

$3.25

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,250

Si864x

SMD/SMT

SOIC-Wide-16

4 Channel

Unidirectional

150 Mb/s

5000 Vrms

Capacitive Coupling

5.5 V

2.375 V

8 ns

- 40 C

+ 125 C

AEC-Q100

Reel, Cut Tape, MouseReel

Digital Isolators 1 kV 4-channel digital isolator

SI8645BA-B-IUR
Skyworks Solutions, Inc.
1: $4.75
6,067In Stock

Mfr. Part No.
SI8645BA-B-IUR

Mouser Part No
634-SI8645BA-B-IUR

Skyworks Solutions, Inc.

Digital Isolators 1 kV 4-channel digital isolator

Learn More

Datasheet

6,067In Stock

Cut Tape

$4.75

$3.67

$3.38

$3.04

Reel

$2.61

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Si864x

SMD/SMT

QSOP-16

4 Channel

Unidirectional

150 Mb/s

1000 Vrms

Capacitive Coupling

5.5 V

2.375 V

8 ns

- 40 C

+ 125 C

AEC-Q100

Reel, Cut Tape, MouseReel

Digital Isolators 3.75 kV 4-channel digital isolator

SI8645BC-B-IS1
Skyworks Solutions, Inc.
1: $5.64
657In Stock

Mfr. Part No.
SI8645BC-B-IS1

Mouser Part No
634-SI8645BC-B-IS1

Skyworks Solutions, Inc.

Digital Isolators 3.75 kV 4-channel digital isolator

Learn More

Datasheet

657In Stock

$5.64

$4.27

$3.73

$3.45

View

Min.: 1
Mult.: 1

Si864x

SMD/SMT

SOIC-Narrow-16

4 Channel

Unidirectional

150 Mb/s

3750 Vrms

Capacitive Coupling

5.5 V

2.375 V

8 ns

- 40 C

+ 125 C

AEC-Q100

Tube

Digital Isolators 5 kV 4-channel digital isolator

SI8645BD-B-IS
Skyworks Solutions, Inc.
1: $6.02
819In Stock

Mfr. Part No.
SI8645BD-B-IS

Mouser Part No
634-SI8645BD-B-IS

Skyworks Solutions, Inc.

Digital Isolators 5 kV 4-channel digital isolator

Learn More

Datasheet

819In Stock

$6.02

$4.57

$4.00

$3.71

View

Min.: 1
Mult.: 1

Si864x

SMD/SMT

SOIC-Wide-16

4 Channel

Unidirectional

150 Mb/s

5000 Vrms

Capacitive Coupling

5.5 V

2.375 V

8 ns

- 40 C

+ 125 C

AEC-Q100

Tube

Digital Isolators 5 kV 4 forward & 1 reverse 5-channel isolator

SI8651BD-B-IS
Skyworks Solutions, Inc.
1: $6.84
3,236In Stock

Mfr. Part No.
SI8651BD-B-IS

Mouser Part No
634-SI8651BD-B-IS

Skyworks Solutions, Inc.

Digital Isolators 5 kV 4 forward & 1 reverse 5-channel isolator

Learn More

Datasheet

3,236In Stock

$6.84

$5.21

$4.73

$4.34

View

Min.: 1
Mult.: 1

Si865x

SMD/SMT

SOIC-Wide-16

5 Channel

Unidirectional

150 Mb/s

5000 Vrms

Capacitive Coupling

5.5 V

2.375 V

8 ns

- 40 C

+ 125 C

AEC-Q100

Tube

Digital Isolators 1 kV 5-channel digital isolator

SI8655BA-B-IU
Skyworks Solutions, Inc.
1: $5.67
3,367In Stock

Mfr. Part No.
SI8655BA-B-IU

Mouser Part No
634-SI8655BA-B-IU

Skyworks Solutions, Inc.

Digital Isolators 1 kV 5-channel digital isolator

Learn More

Datasheet

3,367In Stock

$5.67

$4.30

$3.57

$3.42

View

Min.: 1
Mult.: 1

Si865x

SMD/SMT

QSOP-16

5 Channel

Unidirectional

150 Mb/s

1000 Vrms

Capacitive Coupling

5.5 V

2.375 V

8 ns

- 40 C

+ 125 C

AEC-Q100

Tube

Digital Isolators 1 kV 5-channel digital isolator

SI8655BA-B-IUR
Skyworks Solutions, Inc.
1: $5.71
2,069In Stock

Mfr. Part No.
SI8655BA-B-IUR

Mouser Part No
634-SI8655BA-B-IUR

Skyworks Solutions, Inc.

Digital Isolators 1 kV 5-channel digital isolator

Learn More

Datasheet

2,069In Stock

Cut Tape

$5.71

$4.31

$3.96

$3.57

View

Reel

$3.09

Min.: 1
Mult.: 1

: 2,500

Si865x

SMD/SMT

QSOP-16

5 Channel

Unidirectional

150 Mb/s

1000 Vrms

Capacitive Coupling

5.5 V

2.375 V

8 ns

- 40 C

+ 125 C

AEC-Q100

Reel, Cut Tape

Digital Isolators 5 kV 6-channel digital isolator

SI8660BD-B-IS
Skyworks Solutions, Inc.
1: $8.02
2,079In Stock
1,426On Order

Mfr. Part No.
SI8660BD-B-IS

Mouser Part No
634-SI8660BD-B-IS

Skyworks Solutions, Inc.

Digital Isolators 5 kV 6-channel digital isolator

Learn More

Datasheet

2,079In Stock

1,426On Order

$8.02

$6.12

$5.45

$5.07

View

Min.: 1
Mult.: 1

Si866x

SMD/SMT

SOIC-Wide-16

6 Channel

Unidirectional

150 Mb/s

5000 Vrms

Capacitive Coupling

5.5 V

2.375 V

8 ns

- 40 C

+ 125 C

AEC-Q100

Tube

Digital Isolators 5 kV 6-channel digital isolator

SI8660BD-B-ISR
Skyworks Solutions, Inc.
1: $8.02
2,625In Stock

Mfr. Part No.
SI8660BD-B-ISR

Mouser Part No
634-SI8660BD-B-ISR

Skyworks Solutions, Inc.

Digital Isolators 5 kV 6-channel digital isolator

Learn More

Datasheet

2,625In Stock

Cut Tape

$8.02

$6.12

$5.64

$5.13

Reel

$4.73

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,250

Si866x

SMD/SMT

SOIC-Wide-16

6 Channel

Unidirectional

150 Mb/s

5000 Vrms

Capacitive Coupling

5.5 V

2.375 V

8 ns

- 40 C

+ 125 C

AEC-Q100

Reel, Cut Tape, MouseReel

Digital Isolators 5 kV 6-channel digital isolator

SI8660ED-B-IS
Skyworks Solutions, Inc.
1: $7.81
507In Stock

Mfr. Part No.
SI8660ED-B-IS

Mouser Part No
634-SI8660ED-B-IS

Skyworks Solutions, Inc.

Digital Isolators 5 kV 6-channel digital isolator

Learn More

Datasheet

507In Stock

$7.81

$6.19

$5.45

$5.07

View

Min.: 1
Mult.: 1

Si866x

SMD/SMT

SOIC-Wide-16

6 Channel

Unidirectional

150 Mb/s

5000 Vrms

Capacitive Coupling

5.5 V

2.375 V

8 ns

- 40 C

+ 125 C

AEC-Q100

Tube

Digital Isolators 5 kV 5 forward & 1 reverse 6-channel isolator

SI8661BD-B-IS
Skyworks Solutions, Inc.
1: $7.96
1,659In Stock

Mfr. Part No.
SI8661BD-B-IS

Mouser Part No
634-SI8661BD-B-IS

Skyworks Solutions, Inc.

Digital Isolators 5 kV 5 forward & 1 reverse 6-channel isolator

Learn More

Datasheet

1,659In Stock

$7.96

$6.07

$5.45

$5.06

View

Min.: 1
Mult.: 1

Si866x

SMD/SMT

SOIC-Wide-16

6 Channel

Unidirectional

150 Mb/s

5000 Vrms

Capacitive Coupling

5.5 V

2.375 V

8 ns

- 40 C

+ 125 C

AEC-Q100

Tube

Digital Isolators 5 kV 5 forward & 1 reverse 6-channel isolator

SI8661BD-B-ISR
Skyworks Solutions, Inc.
1: $8.05
948In Stock

Mfr. Part No.
SI8661BD-B-ISR

Mouser Part No
634-SI8661BD-B-ISR

Skyworks Solutions, Inc.

Digital Isolators 5 kV 5 forward & 1 reverse 6-channel isolator

Learn More

Datasheet

948In Stock

Cut Tape

$8.05

$6.14

$5.67

$5.16

Reel

$4.61

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,250

Si866x

SMD/SMT

SOIC-Wide-16

6 Channel

Unidirectional

150 Mb/s

5000 Vrms

Capacitive Coupling

5.5 V

2.375 V

8 ns

- 40 C

+ 125 C

AEC-Q100

Reel, Cut Tape, MouseReel

Digital Isolators 3.75 kV 5 forward & 1 reverse 6-channel isolator

SI8661EC-B-IS1
Skyworks Solutions, Inc.
1: $7.46
622In Stock

Mfr. Part No.
SI8661EC-B-IS1

Mouser Part No
634-SI8661EC-B-IS1

Skyworks Solutions, Inc.

Digital Isolators 3.75 kV 5 forward & 1 reverse 6-channel isolator

Learn More

Datasheet

622In Stock

$7.46

$5.69

$5.06

$4.70

View

Min.: 1
Mult.: 1

Si866x

SMD/SMT

SOIC-Narrow-16

6 Channel

Unidirectional

150 Mb/s

3750 Vrms

Capacitive Coupling

5.5 V

2.375 V

8 ns

- 40 C

+ 125 C

AEC-Q100

Tube

Digital Isolators 5 kV 5 forward & 1 reverse 6-channel isolator

SI8661ED-B-ISR
Skyworks Solutions, Inc.
1: $8.02
1,484In Stock

Mfr. Part No.
SI8661ED-B-ISR

Mouser Part No
634-SI8661ED-B-ISR

Skyworks Solutions, Inc.

Digital Isolators 5 kV 5 forward & 1 reverse 6-channel isolator

Learn More

Datasheet

1,484In Stock

Cut Tape

$8.02

$6.12

$5.64

$5.13

Reel

$4.61

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,250

Si866x

SMD/SMT

SOIC-Wide-16

6 Channel

Unidirectional

150 Mb/s

5000 Vrms

Capacitive Coupling

5.5 V

2.375 V

8 ns

- 40 C

+ 125 C

AEC-Q100

Reel, Cut Tape, MouseReel

Digital Isolators 3.75 kV 4 forward & 2 reverse 6-channel isolator

SI8662BC-B-IS1
Skyworks Solutions, Inc.
1: $7.46
2,801In Stock

Mfr. Part No.
SI8662BC-B-IS1

Mouser Part No
634-SI8662BC-B-IS1

Skyworks Solutions, Inc.

Digital Isolators 3.75 kV 4 forward & 2 reverse 6-channel isolator

Learn More

Datasheet

2,801In Stock

$7.46

$5.69

$5.06

$4.68

View

Min.: 1
Mult.: 1

Si866x

SMD/SMT

SOIC-Narrow-16

6 Channel

Unidirectional

150 Mb/s

3750 Vrms

Capacitive Coupling

5.5 V

2.375 V

8 ns

- 40 C

+ 125 C

AEC-Q100

Tube

Digital Isolators 5 kV 4 forward & 2 reverse 6-channel isolator

SI8662BD-B-IS
Skyworks Solutions, Inc.
1: $8.02
3,969In Stock

Mfr. Part No.
SI8662BD-B-IS

Mouser Part No
634-SI8662BD-B-IS

Skyworks Solutions, Inc.

Digital Isolators 5 kV 4 forward & 2 reverse 6-channel isolator

Learn More

Datasheet

3,969In Stock

$8.02

$6.12

$5.41

$5.00

View

Min.: 1
Mult.: 1

Si866x

SMD/SMT

SOIC-Wide-16

6 Channel

Unidirectional

150 Mb/s

5000 Vrms

Capacitive Coupling

5.5 V

2.375 V

8 ns

- 40 C

+ 125 C

AEC-Q100

Tube

Digital Isolators 3.75 kV 4 forward & 2 reverse 6-channel isolator

SI8662EC-B-IS1
Skyworks Solutions, Inc.
1: $7.46
973In Stock
1,152Expected 3/9/2026

Mfr. Part No.
SI8662EC-B-IS1

Mouser Part No
634-SI8662EC-B-IS1

Skyworks Solutions, Inc.

Digital Isolators 3.75 kV 4 forward & 2 reverse 6-channel isolator

Learn More

Datasheet

973In Stock

1,152Expected 3/9/2026

$7.46

$5.69

$5.06

$4.70

View

Min.: 1
Mult.: 1

Si866x

SMD/SMT

SOIC-Narrow-16

6 Channel

Unidirectional

150 Mb/s

3750 Vrms

Capacitive Coupling

5.5 V

2.375 V

8 ns

- 40 C

+ 125 C

AEC-Q100

Tube

Digital Isolators 3.75 kV 4 forward & 2 reverse 6-channel isolator

SI8662EC-B-IS1R
Skyworks Solutions, Inc.
1: $7.38
1,500In Stock
2,500Expected 3/7/2026

Mfr. Part No.
SI8662EC-B-IS1R

Mouser Part No
634-SI8662EC-B-IS1R

Skyworks Solutions, Inc.

Digital Isolators 3.75 kV 4 forward & 2 reverse 6-channel isolator

Learn More

Datasheet

1,500In Stock

2,500Expected 3/7/2026

Cut Tape

$7.38

$5.63

$5.18

$4.70

View

Reel

$4.20

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Si866x

SMD/SMT

SOIC-Narrow-16

6 Channel

Unidirectional

150 Mb/s

3750 Vrms

Capacitive Coupling

5.5 V

2.5 V

5.6 mA, 7.5 mA

8 ns

- 40 C

+ 125 C

AEC-Q100

Reel, Cut Tape, MouseReel

Digital Isolators 5 kV 4 forward & 2 reverse 6-channel isolator

SI8662ED-B-ISR
Skyworks Solutions, Inc.
1: $7.88
1,579In Stock

Mfr. Part No.
SI8662ED-B-ISR

Mouser Part No
634-SI8662ED-B-ISR

Skyworks Solutions, Inc.

Digital Isolators 5 kV 4 forward & 2 reverse 6-channel isolator

Learn More

Datasheet

1,579In Stock

Cut Tape

$7.88

$6.06

$5.64

$5.18

Reel

$4.63

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,250

Si866x

SMD/SMT

SOIC-Wide-16

6 Channel

Unidirectional

150 Mb/s

5000 Vrms

Capacitive Coupling

5.5 V

2.375 V

8 ns

- 40 C

+ 125 C

AEC-Q100

Reel, Cut Tape, MouseReel

Digital Isolators

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