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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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Types of Semiconductors

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Part #

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

PE4312C-Z
pSemi
1: £3.38
10,038In Stock
41,075Expected 11/08/2026

Mfr. Part No.
PE4312C-Z

Mouser Part No
81-PE4312C-Z

pSemi

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

Datasheet

10,038In Stock

41,075Expected 11/08/2026

Cut Tape

£3.38

£2.56

£2.36

£2.13

View

Reel

£1.84

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

PE4314B-Z
pSemi
1: £2.69
1,087In Stock
3,000Expected 11/09/2026

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

1,087In Stock

3,000Expected 11/09/2026

Cut Tape

£2.69

£2.22

£2.06

£1.87

Reel

£1.56

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

PE43205B-Z
pSemi
1: £1.75
64,759On Order

Mfr. Part No.
PE43205B-Z

Mouser Part No
81-PE43205B-Z

pSemi

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

Datasheet

64,759On Order

Cut Tape

£1.75

£1.42

£1.32

£1.20

Reel

£0.995

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

PE43508A-V
pSemi
1: £73.65
248Expected 16/07/2027

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

248Expected 16/07/2027

Cut Tape

£73.65

£61.59

£57.50

£56.66

Reel

£53.71

MouseReel Available

Min.: 1
Mult.: 1

: 250

Attenuators ext. Vss

PE43711B-Z
pSemi
1: £5.49
30,976On Order

Mfr. Part No.
PE43711B-Z

Mouser Part No
81-PE43711B-Z

pSemi

Attenuators ext. Vss

Datasheet

30,976On Order

Cut Tape

£5.49

£4.53

£4.23

£3.88

View

Reel

£3.27

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: £5.76
62,131Expected 12/03/2027

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

62,131Expected 12/03/2027

Cut Tape

£5.76

£4.76

£4.46

£4.09

View

Reel

£3.44

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: £16.22
14,848On 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

14,848On Order

Cut Tape

£16.22

£13.70

£12.90

£11.96

View

Reel

£10.44

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

PE43650A-Z
pSemi
1: £2.01
4,950Expected 13/11/2026
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

4,950Expected 13/11/2026

Cut Tape

£2.01

£1.50

£1.37

£1.26

Reel

£1.10

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: £214.72
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

£214.72

Min.: 1
Mult.: 1

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

PE43620A-Z
pSemi
1: £1.14
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

£1.14

£0.841

£0.759

£0.684

Reel

£0.603

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

PE43665A-Z
pSemi
3,000: £1.13
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

£1.13

£1.10

Min.: 3,000
Mult.: 3,000

: 3,000