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2181 Blackmer® Voltage-Controlled Amplifier ICs

THAT Corporation 2181 Blackmer® Voltage-Controlled Amplifier ICs are high-performance current-in/current-out devices. The ICs feature two opposing polarity, voltage-sensitive control ports, and offer wide-range exponential control of gain and attenuation with low signal distortion. The parts are selected after packaging based primarily on after-trim THD and control-voltage feedthrough performance.

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Part #

Audio Amplifiers Trimmable VCA .008% THD

2181BS08-U
THAT
1: CHF 9.07
442In Stock

Mfr. Part No.
2181BS08-U

Mouser Part No
887-2181BS08-U

THAT

Audio Amplifiers Trimmable VCA .008% THD

Datasheet

442In Stock

CHF 9.07

CHF 8.18

CHF 6.93

CHF 6.46

View

Min.: 1
Mult.: 1

Class-AB

0.02 %

SOIC-8

4 V

18 V

0 C

+ 70 C

SMD/SMT

2181

Tube

Audio Amplifiers Trimmable VCA SIP-8

2181BL08-U
THAT
1: CHF 9.34
527In Stock

Mfr. Part No.
2181BL08-U

Mouser Part No
887-2181BL08-U

THAT

Audio Amplifiers Trimmable VCA SIP-8

Datasheet

527In Stock

CHF 9.34

CHF 7.24

CHF 6.70

CHF 6.12

View

Min.: 1
Mult.: 1

Class-AB

0.02 %

SIP-8

4 V

18 V

0 C

+ 70 C

Through Hole

2181

Tube

Audio Amplifiers Trimmable VCA SIP-8

2181AL08-U
THAT
1: CHF 14.35
567In Stock

Mfr. Part No.
2181AL08-U

Mouser Part No
887-2181AL08-U

THAT

Audio Amplifiers Trimmable VCA SIP-8

Datasheet

567In Stock

CHF 14.35

CHF 11.28

CHF 10.41

CHF 9.60

View

Min.: 1
Mult.: 1

Class-AB

0.01 %

SIP-8

4 V

18 V

0 C

+ 70 C

Through Hole

2181

Tube

Audio Amplifiers Trimmable VCA SIP-8

2181CL08-U
THAT
1: CHF 7.82
246In Stock

Mfr. Part No.
2181CL08-U

Mouser Part No
887-2181CL08-U

THAT

Audio Amplifiers Trimmable VCA SIP-8

Datasheet

246In Stock

CHF 7.82

CHF 6.25

CHF 5.31

CHF 5.08

View

Min.: 1
Mult.: 1

Class-AB

0.05 %

SIP-8

4 V

18 V

0 C

+ 70 C

Through Hole

2181

Tube

Audio Amplifiers Trimmable VCA .02% THD

2181CS08-U
THAT
1: CHF 6.27
6’990On Order

Mfr. Part No.
2181CS08-U

Mouser Part No
887-2181CS08-U

THAT

Audio Amplifiers Trimmable VCA .02% THD

Datasheet

6’990On Order

CHF 6.27

CHF 4.81

CHF 4.44

CHF 4.03

View

Min.: 1
Mult.: 1

Class-AB

0.05 %

SOIC-8

4 V

18 V

0 C

+ 70 C

SMD/SMT

2181

Tube

Audio Amplifiers Trimmable VCA .005% THD

2181AS08-U
THAT
1: CHF 11.53
588Expected 8/20/2026

Mfr. Part No.
2181AS08-U

Mouser Part No
887-2181AS08-U

THAT

Audio Amplifiers Trimmable VCA .005% THD

Datasheet

588Expected 8/20/2026

CHF 11.53

CHF 9.70

CHF 8.80

CHF 8.14

View

Min.: 1
Mult.: 1

Class-AB

0.01 %

SOIC-8

4 V

18 V

0 C

+ 70 C

SMD/SMT

2181

Tube

Audio Amplifiers Trimmable Blackmer VCA

2181AS08-UR
THAT
2’000: CHF 6.34
Non-Stocked

Mfr. Part No.
2181AS08-UR

Mouser Part No
887-2181AS08-UR

THAT

Audio Amplifiers Trimmable Blackmer VCA

Datasheet

Non-Stocked

Reel

CHF 6.34

Min.: 2’000
Mult.: 2’000

: 2’000

Class-AB

2181

Reel

Audio Amplifiers Trimmable Blackmer VCA

2181BS08-UR
THAT
2’000: CHF 4.08
Non-Stocked

Mfr. Part No.
2181BS08-UR

Mouser Part No
887-2181BS08-UR

THAT

Audio Amplifiers Trimmable Blackmer VCA

Datasheet

Non-Stocked

Reel

CHF 4.08

Min.: 2’000
Mult.: 2’000

: 2’000

Class-AB

2181

Reel

Audio Amplifiers Trimmable Blackmer VCA

2181CS08-UR
THAT
2’000: CHF 3.49
Non-Stocked Lead-Time 22 Weeks

Mfr. Part No.
2181CS08-UR

Mouser Part No
887-2181CS08-UR

THAT

Audio Amplifiers Trimmable Blackmer VCA

Datasheet

Non-Stocked Lead-Time 22 Weeks

Reel

CHF 3.49

Min.: 2’000
Mult.: 2’000

: 2’000

Class-AB

2181

Reel