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UltraCMOS® RF Digital Step Attenuators

pSemi UltraCMOS® RF Digital Step Attenuators (DSAs) offer flexibility and performance for wireless and broadband infrastructure equipment, LMRs, test-and-measurement equipment, and military RF applications. The UltraCMOS RF DSAs are offered in 50Ω and 75Ω variants, with multiple programming mode options, including serial, direct parallel, and latched parallel, making it easy to design them into a wide range of systems. These devices offer best-in-class linearity, outstanding attenuation accuracy, and low insertion loss.

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Part #

Attenuators 75ohm 6Bit 31.5dB 0.5dB Digital Step Attenuator, optional ext. Vss

PE4314B-Z
pSemi
1: CHF 2.84
1’138In Stock
3’000Expected 9/11/2026

Mfr. Part No.
PE4314B-Z

Mouser Part No
81-PE4314B-Z

pSemi

Attenuators 75ohm 6Bit 31.5dB 0.5dB Digital Step Attenuator, optional ext. Vss

Datasheet

1’138In Stock

3’000Expected 9/11/2026

Cut Tape

CHF 2.84

CHF 2.34

CHF 2.18

CHF 1.97

Reel

CHF 1.65

View

MouseReel Available

Min.: 1
Mult.: 1

: 3’000

Attenuators 50ohm 7Bit 31.75dB 0.25dB, 0.5dB, 1.0dB Digital Step Attenuator, optional

PE43713B-Z
pSemi
1: CHF 17.13
8In Stock
15’000On Order

Mfr. Part No.
PE43713B-Z

Mouser Part No
81-PE43713B-Z

pSemi

Attenuators 50ohm 7Bit 31.75dB 0.25dB, 0.5dB, 1.0dB Digital Step Attenuator, optional

Datasheet

8In Stock

15’000On Order

Cut Tape

CHF 17.13

CHF 14.47

CHF 13.63

CHF 12.63

View

Reel

CHF 11.03

MouseReel Available

Min.: 1
Mult.: 1

: 3’000

Attenuators 50ohm 6Bit 31.5dB 0.5dB Digital Step Attenuator

PE4312C-Z
pSemi
1: CHF 3.57
52’476Expected 8/6/2026

Mfr. Part No.
PE4312C-Z

Mouser Part No
81-PE4312C-Z

pSemi

Attenuators 50ohm 6Bit 31.5dB 0.5dB Digital Step Attenuator

Datasheet

52’476Expected 8/6/2026

Cut Tape

CHF 3.57

CHF 2.70

CHF 2.49

CHF 2.25

View

Reel

CHF 1.95

MouseReel Available

Min.: 1
Mult.: 1

: 3’000

Attenuators 50ohm 2Bit 18.0dB 6.0dB Digital Step Attenuator

PE43205B-Z
pSemi
1: CHF 1.84
40’759On Order

Mfr. Part No.
PE43205B-Z

Mouser Part No
81-PE43205B-Z

pSemi

Attenuators 50ohm 2Bit 18.0dB 6.0dB Digital Step Attenuator

Datasheet

40’759On Order

Cut Tape

CHF 1.84

CHF 1.50

CHF 1.39

CHF 1.26

Reel

CHF 1.05

View

MouseReel Available

Min.: 1
Mult.: 1

: 3’000

Attenuators ext. Vss

PE43711B-Z
pSemi
1: CHF 5.80
30’976On Order

Mfr. Part No.
PE43711B-Z

Mouser Part No
81-PE43711B-Z

pSemi

Attenuators ext. Vss

Datasheet

30’976On Order

Cut Tape

CHF 5.80

CHF 4.79

CHF 4.47

CHF 4.10

View

Reel

CHF 3.45

MouseReel Available

Min.: 1
Mult.: 1

: 3’000

Attenuators 50ohm 7Bit 31.75dB 0.25dB, 0.5dB, 1.0dB Digital Step Attenuator, w/o

PE43712B-Z
pSemi
1: CHF 6.09
62’135Expected 3/12/2027

Mfr. Part No.
PE43712B-Z

Mouser Part No
81-PE43712B-Z

pSemi

Attenuators 50ohm 7Bit 31.75dB 0.25dB, 0.5dB, 1.0dB Digital Step Attenuator, w/o

Datasheet

62’135Expected 3/12/2027

Cut Tape

CHF 6.09

CHF 5.02

CHF 4.71

CHF 4.31

View

Reel

CHF 3.63

MouseReel Available

Min.: 1
Mult.: 1

: 3’000

Attenuators 50ohm 5Bit 15.5dB 0.5dB Digital Step Attenuator

PE43650A-Z
pSemi
1: CHF 2.12
6’000Expected 11/13/2026
End of Life

Mfr. Part No.
PE43650A-Z

Mouser Part No
81-PE43650A-Z

End of Life

pSemi

Attenuators 50ohm 5Bit 15.5dB 0.5dB Digital Step Attenuator

Datasheet

6’000Expected 11/13/2026

Cut Tape

CHF 2.12

CHF 1.59

CHF 1.45

CHF 1.33

Reel

CHF 1.16

View

MouseReel Available

Min.: 1
Mult.: 1

: 3’000

RF Development Tools 50ohm 7Bit 31.75dB 0.25dB, 0.5dB, 1.0dB Digital Step Attenuator Eval.

EK43712-03
pSemi
1: CHF 226.78
Non-Stocked Lead-Time 24 Weeks

Mfr. Part No.
EK43712-03

Mouser Part No
81-EK43712-03

pSemi

RF Development Tools 50ohm 7Bit 31.75dB 0.25dB, 0.5dB, 1.0dB Digital Step Attenuator Eval.

Datasheet

Non-Stocked Lead-Time 24 Weeks

CHF 226.78

Min.: 1
Mult.: 1

Attenuators 50ohm 6 Bit 31.5dB 0.5dB, 1.0dB Digital Step Attenuator, optional ext. Vss

PE43508A-V
pSemi
1: CHF 77.78
Lead-Time 16 Weeks

Mfr. Part No.
PE43508A-V

Mouser Part No
81-PE43508A-V

pSemi

Attenuators 50ohm 6 Bit 31.5dB 0.5dB, 1.0dB Digital Step Attenuator, optional ext. Vss

Datasheet

Lead-Time 16 Weeks

Cut Tape

CHF 77.78

CHF 65.05

CHF 59.95

CHF 58.38

Reel

CHF 56.72

View

MouseReel Available

Min.: 1
Mult.: 1

: 250

Attenuators 50ohm 2Bit 18.0dB 6.0dB Digital Step Attenuator

PE43620A-Z
pSemi
1: CHF 1.21
Non-Stocked Lead-Time 24 Weeks

Mfr. Part No.
PE43620A-Z

Mouser Part No
81-PE43620A-Z

pSemi

Attenuators 50ohm 2Bit 18.0dB 6.0dB Digital Step Attenuator

Datasheet

Non-Stocked Lead-Time 24 Weeks

Cut Tape

CHF 1.21

CHF 0.888

CHF 0.801

CHF 0.722

Reel

CHF 0.637

View

MouseReel Available

Min.: 1
Mult.: 1

: 3’000

Attenuators 75ohm 6Bit 31.5dB 0.5dB Digital Step Attenuator

PE43665A-Z
pSemi
3’000: CHF 1.19
Non-Stocked Lead-Time 24 Weeks

Mfr. Part No.
PE43665A-Z

Mouser Part No
81-PE43665A-Z

pSemi

Attenuators 75ohm 6Bit 31.5dB 0.5dB Digital Step Attenuator

Datasheet

Non-Stocked Lead-Time 24 Weeks

Reel

CHF 1.19

CHF 1.16

Min.: 3’000
Mult.: 3’000

: 3’000