100 MHz Data Line Filters 640

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Part RoHS Manufacturer Filter Type Construction Maximum DC Resistance Maximum Frequency Material Rated Current Minimum Insulation Resistance Approvals (V) Power Supply (V) No. of Functions Technology Screening Level Output Impedance (ohm) High Pot Packing Method Mounting Type Rated Voltage No. of Terminals Sub-Category Dimensions Case Code Maximum Operating Temperature Attenuation At Maximum Frequency Minimum Attenuation Frequency Package Material Minimum Operating Temperature Attenuation At Minimum Frequency Terminal Finish Inductance Maximum Attenuation Frequency Manufacturer Series Height Width (mm) Diameter (mm) Maximum Insertion Loss Additional Features JESD-609 Code Minimum Frequency Operating Frequency (Hz) Series Length Capacitance

742792515

Wurth Elektronik

FERRITE CHIP

Chip Bead

.05 ohm

100 MHz

Ferrite

3 A

1

785 OHM

TR, EMBOSSED, 7 INCH

SURFACE MOUNT

2

Other Filters

L4.5XB3.2XH1.5 (mm)/L0.177XB0.126XH0.059 (inch)

1812

125 Cel

-55 Cel

Tin (Sn) - with Nickel (Ni) barrier

1.5 mm

3.2

e3

60 MHz

4.5 mm

BLM15BB121SN1D

Murata Manufacturing

FERRITE CHIP

Chip Bead

.55 ohm

100 MHz

Ferrite

.3 A

1

120 OHM

TR, PAPER, 7 INCH

SURFACE MOUNT

2

Other Filters

L1.0XB0.5XH0.5 (mm)/L0.039XB0.02XH0.02 (inch)

0402

125 Cel

-55 Cel

TIN

.5 mm

0.5

MONOLITHIC TYPE

e3

100 MHz

1 mm

BLM21PG331SH1D

Murata Manufacturing

FERRITE CHIP

Chip Bead

.09 ohm

100 MHz

Ferrite

1.5 A

1

AEC-Q200

330 OHM

TAPE

SURFACE MOUNT

2

Other Filters

L2.0XB1.25XH0.85 (mm)/L0.079XB0.049XH0.033 (inch)

0805

125 Cel

-55 Cel

TIN

.85 mm

1.25

e3

100 MHz

2 mm

CT2743019447

Central Technologies

FERRITE CHIP

.0006 ohm

100 MHz

Ferrite

5 A

1

38 OHM

TAPE AND REEL

SURFACE MOUNT

Other Filters

L5.1XB3.05XH2.85 (mm)/L0.201XB0.12XH0.112 (inch)

2012

Tin/Lead (Sn/Pb)

2.85 mm

3.05

e0

25 MHz

5.1 mm

MPZ1608S600ATAH0

TDK

FERRITE CHIP

Chip Bead

.02 ohm

100 MHz

Ferrite

3.5 A

1

60 OHM

TR, 7 INCH

SURFACE MOUNT

2

Other Filters

L1.6XB0.8XH0.8 (mm)/L0.063XB0.031XH0.031 (inch)

0603

125 Cel

-55 Cel

TIN OVER NICKEL

.8 mm

0.8

e3

100 MHz

1.6 mm

BLM18AG601SH1D

Murata Manufacturing

FERRITE CHIP

Chip Bead

.38 ohm

100 MHz

Ferrite

.5 A

1

AEC-Q200

600 OHM

TR, PAPER, 7 INCH

SURFACE MOUNT

2

Other Filters

L1.6XB0.8XH0.8 (mm)/L0.063XB0.031XH0.031 (inch)

0603

125 Cel

-55 Cel

TIN

.8 mm

0.8

AEC-Q200

e3

100 MHz

1.6 mm

ILHB1206ER121V

Vishay Intertechnology

FERRITE CHIP

Multilayer Chip

.02 ohm

100 MHz

Ferrite

6 A

1

120 OHM

TR, 7 Inch

SURFACE MOUNT

2

Other Passive Filters

L3.2XB1.6XH1.1 (mm)/L0.126XB0.063XH0.043 (inch)

1206

125 Cel

-55 Cel

MATTE TIN OVER NICKEL

1.1 mm

1.6

NICKEL BARRIER PLATING VIRTUALLY ELIMINATES SILVER MIGRATION

e3

100 MHz

3.2 mm

BLM18BD471SN1D

Murata Manufacturing

FERRITE CHIP

Chip Bead

.55 ohm

100 MHz

Ferrite

.2 A

1

470 OHM

TAPE

SURFACE MOUNT

2

Other Passive Filters

L1.6XB0.8XH0.8 (mm)/L0.063XB0.031XH0.031 (inch)

0603

125 Cel

-55 Cel

Tin (Sn)

.8 mm

0.8

MONOLITHIC TYPE

e3

100 MHz

1.6 mm

BLM15AX121SN1D

Murata Manufacturing

FERRITE CHIP

Chip Bead

.13 ohm

100 MHz

Ferrite

.7 A

1

120 OHM

TR, PAPER, 7 INCH

SURFACE MOUNT

2

Other Filters

L1.0XB0.5XH0.5 (mm)/L0.039XB0.02XH0.02 (inch)

0402

125 Cel

-55 Cel

TIN

.5 mm

0.5

e3

100 MHz

1 mm

BLM18BB100SN1D

Murata Manufacturing

FERRITE CHIP

Chip Bead

.1 ohm

100 MHz

Ferrite

.7 A

1

10 OHM

TAPE

SURFACE MOUNT

2

Other Passive Filters

L1.6XB0.8XH0.8 (mm)/L0.063XB0.031XH0.031 (inch)

0603

125 Cel

-55 Cel

Tin (Sn)

.8 mm

0.8

MONOLITHIC TYPE

e3

100 MHz

1.6 mm

BLM15BB100SN1D

Murata Manufacturing

FERRITE CHIP

Chip Bead

.1 ohm

100 MHz

Ferrite

.3 A

1

10 OHM

TR, PAPER, 7 INCH

SURFACE MOUNT

2

Other Filters

L1.0XB0.5XH0.5 (mm)/L0.039XB0.02XH0.02 (inch)

0402

125 Cel

-55 Cel

TIN

.5 mm

0.5

MONOLITHIC TYPE

e3

100 MHz

1 mm

BK2125HS470-T

Taiyo Yuden

FERRITE CHIP

Chip Bead

.05 ohm

100 MHz

Ferrite

1 A

1

47 OHM

TAPE AND REEL

SURFACE MOUNT

1000 V

2

Other Filters

L2.0XB1.25XH0.85 (mm)/L0.079XB0.049XH0.033 (inch)

0805

125 Cel

-55 Cel

MATTE TIN OVER NICKEL

.85 mm

1.25

e3

100 MHz

2 mm

BLM18BD221SN1D

Murata Manufacturing

FERRITE CHIP

Chip Bead

.45 ohm

100 MHz

Ferrite

.2 A

1

220 OHM

TAPE

SURFACE MOUNT

2

Other Passive Filters

L1.6XB0.8XH0.8 (mm)/L0.063XB0.031XH0.031 (inch)

0603

125 Cel

-55 Cel

Matte Tin (Sn) - with Nickel (Ni) barrier

.8 mm

0.8

MONOLITHIC TYPE

e3

100 MHz

1.6 mm

BLM21AJ601SN1D

Murata Manufacturing

FERRITE CHIP

Chip Bead

1.1 ohm

100 MHz

Ferrite

.2 A

1

600 OHM

TAPE AND REEL

SURFACE MOUNT

2

L2.0XB1.25XH0.85 (mm)/L0.079XB0.049XH0.033 (inch)

0805

125 Cel

-55 Cel

TIN

.85 mm

1.25

MONOLITHIC TYPE

e3

100 MHz

2 mm

FBMH4525HM102NT

Taiyo Yuden

FERRITE CHIP

Chip Bead

.06 ohm

100 MHz

Ferrite

3 A

1

1000 OHM

TAPE AND REEL

SURFACE MOUNT

2

Other Passive Filters

L4.5XB2.5XH2.5 (mm)/L0.177XB0.098XH0.098 (inch)

1810

85 Cel

-40 Cel

MATTE TIN OVER NICKEL

2.5 mm

2.5

RECTANGULAR CHIP; HIGH IMPEDANCE TYPE

e3

100 MHz

4.5 mm

FBMH2012HM221-T

Taiyo Yuden

FERRITE CHIP

Chip Bead

.06 ohm

100 MHz

Ferrite

2 A

1

220 OHM

TAPE AND REEL

SURFACE MOUNT

2

Other Passive Filters

L2.0XB1.25XH0.85 (mm)/L0.079XB0.049XH0.033 (inch)

0805

85 Cel

-40 Cel

.85 mm

1.25

RECTANGULAR CHIP; HIGH IMPEDANCE TYPE

100 MHz

2 mm

BLM21BD221SN1D

Murata Manufacturing

FERRITE CHIP

Chip Bead

.25 ohm

100 MHz

Ferrite

.2 A

1

220 OHM

TAPE AND REEL

SURFACE MOUNT

2

Other Filters

L2.0XB1.25XH0.85 (mm)/L0.079XB0.049XH0.033 (inch)

0805

125 Cel

-55 Cel

TIN

.85 mm

1.25

MONOLITHIC TYPE

e3

100 MHz

2 mm

FBMH1608HM101-T

Taiyo Yuden

FERRITE CHIP

Chip Bead

.035 ohm

100 MHz

Ferrite

2 A

1

100 OHM

TAPE AND REEL

SURFACE MOUNT

2

Other Passive Filters

L1.6XB0.8XH0.8 (mm)/L0.063XB0.031XH0.031 (inch)

0603

85 Cel

-40 Cel

MATTE TIN OVER NICKEL

.8 mm

0.8

RECTANGULAR CHIP; HIGH IMPEDANCE TYPE

e3

100 MHz

1.6 mm

MLB-321611-1200PL

Kitagawa Electronics

FERRITE CHIP

Chip Bead

.2 ohm

100 MHz

Ferrite

1 A

1

1200 OHM

TR

SURFACE MOUNT

2

Other Filters

L3.2XB1.6XH1.1 (mm)/L.126XB.063XH.0433 (inch)

1206

125 Cel

-55 Cel

1.1 mm

1.6

100 MHz

3.2 mm

BLM18RK601SN1D

Murata Manufacturing

FERRITE CHIP

Chip Bead

.6 ohm

100 MHz

Ferrite

.2 A

1

600 OHM

TAPE AND REEL

SURFACE MOUNT

2

Other Filters

L1.6XB0.8XH0.8 (mm)/L0.063XB0.031XH0.031 (inch)

0603

125 Cel

-55 Cel

Tin (Sn)

.8 mm

0.8

MONOLITHIC TYPE

e3

100 MHz

1.6 mm

BLM21PG600SN1B

Murata Manufacturing

FERRITE CHIP

Chip Bead

.025 ohm

100 MHz

Ferrite

3 A

1

60 OHM

BULK

SURFACE MOUNT

2

Other Filters

L2.0XB1.25XH0.85 (mm)/L0.079XB0.049XH0.033 (inch)

0805

125 Cel

-55 Cel

TIN

.85 mm

1.25

BAG

e3

100 MHz

2 mm

FBMJ4516HS720NT

Taiyo Yuden

FERRITE CHIP

Chip Bead

.007 ohm

100 MHz

Ferrite

6 A

1

72 OHM

TAPE AND REEL

SURFACE MOUNT

2

Other Passive Filters

L4.5XB1.6XH1.1 (mm)/L0.177XB0.063XH0.043 (inch)

1806

85 Cel

-40 Cel

MATTE TIN OVER NICKEL

1.1 mm

1.6

RECTANGULAR CHIP

e3

100 MHz

4.5 mm

742792092

Wurth Elektronik

FERRITE CHIP

Multi-Layer

.6 ohm

100 MHz

Ferrite

.2 A

1

2000 OHM

TR, EMBOSSED, 7 INCH

SURFACE MOUNT

Other Filters

L2.0XB1.2XH0.9 (mm)/L0.079XB0.047XH0.035 (inch)

0805

125 Cel

-55 Cel

Tin (Sn) - with Nickel (Ni) barrier

.9 mm

1.2

e3

100 MHz

2 mm

FBMH1608HL121-T

Taiyo Yuden

FERRITE CHIP

Chip Bead

.13 ohm

100 MHz

Ferrite

.9 A

1

120 OHM

TAPE AND REEL

SURFACE MOUNT

2

Other Passive Filters

L1.6XB0.8XH0.8 (mm)/L0.063XB0.031XH0.031 (inch)

0603

85 Cel

-40 Cel

.8 mm

0.8

RECTANGULAR CHIP; HIGH IMPEDANCE TYPE

100 MHz

1.6 mm

BLM03AX241SN1D

Murata Manufacturing

FERRITE BEAD

Chip Bead

.38 ohm

100 MHz

Ferrite

.35 A

1

240 OHM

TAPE

SURFACE MOUNT

2

Other Filters

L0.6XB0.3XH0.3 (mm)/L0.024XB0.012XH0.012 (inch)

0201

125 Cel

-55 Cel

TIN

.3 mm

0.3

e3

100 MHz

.6 mm

BLM15BB470SN1D

Murata Manufacturing

FERRITE CHIP

Chip Bead

.35 ohm

100 MHz

Ferrite

.3 A

1

47 OHM

TR, PAPER, 7 INCH

SURFACE MOUNT

2

Other Filters

L1.0XB0.5XH0.5 (mm)/L0.039XB0.02XH0.02 (inch)

0402

125 Cel

-55 Cel

TIN

.5 mm

0.5

MONOLITHIC TYPE

e3

100 MHz

1 mm

CT2743021447F

Central Technologies

FERRITE CHIP

Chip Bead

.0009 ohm

100 MHz

Ferrite

5 A

1

80 OHM

TAPE AND REEL

SURFACE MOUNT

2

Other Filters

L9.6XB3.05XH2.85 (mm)/L0.378XB0.12XH0.112 (inch)

3812

Matte Tin (Sn)

2.85 mm

3.05

e3

25 MHz

9.6 mm

FBMH1608HM600-T

Taiyo Yuden

FERRITE CHIP

Chip Bead

.025 ohm

100 MHz

Ferrite

3 A

1

60 OHM

TAPE AND REEL

SURFACE MOUNT

2

Other Passive Filters

L1.6XB0.8XH0.8 (mm)/L0.063XB0.031XH0.031 (inch)

0603

85 Cel

-40 Cel

MATTE TIN OVER NICKEL

.8 mm

0.8

RECTANGULAR CHIP; HIGH IMPEDANCE TYPE

e3

100 MHz

1.6 mm

BLM15AG102SN1B

Murata Manufacturing

FERRITE CHIP

Chip Bead

.65 ohm

100 MHz

Ferrite

.3 A

1

1000 OHM

BULK

SURFACE MOUNT

2

Other Passive Filters

L1.0XB0.5XH0.5 (mm)/L0.039XB0.02XH0.02 (inch)

0402

125 Cel

-55 Cel

TIN

.5 mm

0.5

BAG

e3

100 MHz

1 mm

FBMJ1608HS220NTR

Taiyo Yuden

FERRITE CHIP

Chip Bead

.004 ohm

100 MHz

Ferrite

7.5 A

Tape, Paper

SURFACE MOUNT

Other Passive Filters

L1.6XB.8XH.8 (mm)/L.063XB.0315XH.0315 (inch)

0603

125 Cel

-40 Cel

.8 mm

.8

100 MHz

1.6 mm

ILBB-0805ER601V

Vishay Intertechnology

FERRITE CHIP

Multilayer Chip

.3 ohm

100 MHz

Ferrite

.2 A

1

600 OHM

TR, Embossed Plastic, 7 Inch

SURFACE MOUNT

2

Other Passive Filters

L2.0XB1.25XH0.9 (mm)/L0.079XB0.049XH0.035 (inch)

0805

125 Cel

-55 Cel

TIN OVER NICKEL

.9 mm

1.25

e3

100 MHz

2 mm

BK1608HS220-T

Taiyo Yuden

FERRITE CHIP

Chip Bead

.05 ohm

100 MHz

Ferrite

1.5 A

1

22 OHM

TAPE AND REEL

SURFACE MOUNT

2

Other Filters

L1.6XB0.8XH0.8 (mm)/L0.063XB0.031XH0.031 (inch)

0603

125 Cel

-55 Cel

Tin (Sn) - with Nickel (Ni) barrier

.8 mm

0.8

e3

100 MHz

1.6 mm

BLM31PG121SN1B

Murata Manufacturing

FERRITE CHIP

Chip Bead

.025 ohm

100 MHz

Ferrite

3 A

1

120 OHM

BULK

SURFACE MOUNT

2

Other Filters

L3.2XB1.6XH1.1 (mm)/L0.126XB0.063XH0.043 (inch)

1206

125 Cel

-55 Cel

TIN

1.1 mm

1.6

BAG

e3

100 MHz

3.2 mm

BLM21BB201SN1D

Murata Manufacturing

FERRITE CHIP

Chip Bead

.26 ohm

100 MHz

Ferrite

.5 A

1

200 OHM

TAPE AND REEL

SURFACE MOUNT

2

Other Filters

L2.0XB1.25XH0.85 (mm)/L0.079XB0.049XH0.033 (inch)

0805

125 Cel

-55 Cel

MATTE TIN OVER NICKEL

.85 mm

1.25

MONOLITHIC TYPE

e3

100 MHz

2 mm

BK2125HS102-T

Taiyo Yuden

FERRITE CHIP

Chip Bead

.4 ohm

100 MHz

Ferrite

.3 A

1

1000 OHM

TAPE AND REEL

SURFACE MOUNT

300 V

2

Other Filters

L2.0XB1.25XH0.85 (mm)/L0.079XB0.049XH0.033 (inch)

0805

125 Cel

-55 Cel

Matte Tin (Sn) - with Nickel (Ni) barrier

.85 mm

1.25

e3

100 MHz

2 mm

BLM03AX102SN1D

Murata Manufacturing

FERRITE BEAD

Chip Bead

1.25 ohm

100 MHz

Ferrite

.2 A

1

1000 OHM

TAPE

SURFACE MOUNT

2

Other Filters

L0.6XB0.3XH0.3 (mm)/L0.024XB0.012XH0.012 (inch)

0201

125 Cel

-55 Cel

TIN

.3 mm

0.3

e3

100 MHz

.6 mm

BLM21BB600SN1D

Murata Manufacturing

FERRITE CHIP

Chip Bead

.13 ohm

100 MHz

Ferrite

.8 A

1

60 OHM

TAPE AND REEL

SURFACE MOUNT

2

Other Filters

L2.0XB1.25XH0.85 (mm)/L0.079XB0.049XH0.033 (inch)

0805

125 Cel

-55 Cel

TIN

.85 mm

1.25

MONOLITHIC TYPE

e3

100 MHz

2 mm

BLM21BD272SN1L

Murata Manufacturing

FERRITE CHIP

Chip Bead

.8 ohm

100 MHz

Ferrite

.2 A

1

2700 OHM

TAPE AND REEL

SURFACE MOUNT

2

Other Filters

L2.0XB1.25XH1.25 (mm)/L0.079XB0.049XH0.049 (inch)

0805

125 Cel

-55 Cel

TIN OVER NICKEL

1.25 mm

1.25

MONOLITHIC TYPE

e3

100 MHz

2 mm

CT2743019447F

Central Technologies

FERRITE CHIP

Chip Bead

.0006 ohm

100 MHz

Ferrite

5 A

1

38 OHM

TAPE AND REEL

SURFACE MOUNT

2

Other Filters

L5.1XB3.05XH2.85 (mm)/L0.201XB0.12XH0.112 (inch)

2012

Matte Tin (Sn)

2.85 mm

3.05

e3

25 MHz

5.1 mm

MH2029-601Y

Bourns

FERRITE CHIP

Chip Bead

.2 ohm

100 MHz

Ferrite

1 A

.2 Mohm

1

600 OHM

TAPE AND REEL

SURFACE MOUNT

2

Other Filters

L2.0XB1.2XH0.9 (mm)/L0.079XB0.047XH0.035 (inch)

0805

125 Cel

-55 Cel

Matte Tin (Sn) - with Nickel (Ni) barrier

.9 mm

1.2

e3

100 MHz

2 mm

74279244

Wurth Elektronik

FERRITE CHIP

Multi-Layer

.1 ohm

100 MHz

Ferrite

.0015 A

1

850 OHM

SURFACE MOUNT

Other Filters

L4.5XB1.6XH1.6 (mm)/L0.177XB0.063XH0.063 (inch)

1806

125 Cel

-55 Cel

Tin (Sn) - with Nickel (Ni) barrier

1.6 mm

1.6

e3

50 MHz

4.5 mm

BK2125HM102-T

Taiyo Yuden

FERRITE CHIP

Chip Bead

.35 ohm

100 MHz

Ferrite

.4 A

1

1000 OHM

TAPE AND REEL

SURFACE MOUNT

400 V

2

Other Filters

L2.0XB1.25XH0.85 (mm)/L0.079XB0.049XH0.033 (inch)

0805

125 Cel

-55 Cel

Matte Tin (Sn) - with Nickel (Ni) barrier

.85 mm

1.25

e3

100 MHz

2 mm

MH2029-221Y

Bourns

FERRITE CHIP

Chip Bead

.1 ohm

100 MHz

Ferrite

2 A

.1 Mohm

1

220 OHM

TAPE AND REEL

SURFACE MOUNT

2

Other Filters

L2.0XB1.2XH0.9 (mm)/L0.079XB0.047XH0.035 (inch)

0805

125 Cel

-55 Cel

Matte Tin (Sn) - with Nickel (Ni) barrier

.9 mm

1.2

e3

100 MHz

2 mm

MPZ1608Y101BTA00

TDK

FERRITE CHIP

Chip Bead

.04 ohm

100 MHz

Ferrite

2 A

1

100 OHM

TR, 7 INCH

SURFACE MOUNT

2

Other Filters

L1.6XB0.8XH0.8 (mm)/L0.063XB0.031XH0.031 (inch)

0603

125 Cel

-55 Cel

.8 mm

0.8

100 MHz

1.6 mm

BLM21BD601SN1D

Murata Manufacturing

FERRITE CHIP

Chip Bead

.35 ohm

100 MHz

Ferrite

.2 A

1

600 OHM

TAPE AND REEL

SURFACE MOUNT

2

Other Filters

L2.0XB1.25XH0.85 (mm)/L0.079XB0.049XH0.033 (inch)

0805

125 Cel

-55 Cel

TIN

.85 mm

1.25

MONOLITHIC TYPE

e3

100 MHz

2 mm

BLM21PG600SN1J

Murata Manufacturing

FERRITE CHIP

Chip Bead

.025 ohm

100 MHz

Ferrite

3 A

1

60 OHM

TAPE AND REEL

SURFACE MOUNT

2

Other Filters

L2.0XB1.25XH0.85 (mm)/L0.079XB0.049XH0.033 (inch)

0805

125 Cel

-55 Cel

TIN

.85 mm

1.25

MONOLITHIC TYPE

e3

100 MHz

2 mm

BLM15AG102SN1J

Murata Manufacturing

FERRITE CHIP

Chip Bead

1 ohm

100 MHz

Ferrite

.2 A

1

1000 OHM

TAPE AND REEL

SURFACE MOUNT

2

Other Passive Filters

L1.0XB0.5XH0.5 (mm)/L0.039XB0.02XH0.02 (inch)

0402

125 Cel

-55 Cel

TIN

.5 mm

0.5

MONOLITHIC TYPE

e3

100 MHz

1 mm

BLM31PG121SH1L

Murata Manufacturing

FERRITE CHIP

Chip Bead

.02 ohm

100 MHz

Ferrite

3 A

1

AEC-Q200

120 OHM

TAPE

SURFACE MOUNT

2

Other Filters

L3.2XB1.6XH1.1 (mm)/L0.126XB0.063XH0.043 (inch)

1206

125 Cel

-55 Cel

TIN OVER NICKEL

1.1 mm

1.6

e3

100 MHz

3.2 mm

Data Line Filters

Data line filters are electronic filters that are used to filter out noise and interference from data communication lines. They are designed to provide a high level of attenuation of unwanted frequencies while allowing the desired data signal to pass through with minimal distortion.

Data line filters use a combination of passive and active components, including resistors, capacitors, inductors, and op-amps, to filter out noise and interference from data communication lines. They can be designed for a wide range of communication standards, including Ethernet, USB, HDMI, and other data communication protocols.

Data line filters can be designed as low-pass filters, which allow low-frequency signals to pass through while attenuating high-frequency signals, or as band-stop filters, which block a specific range of frequencies while allowing other frequencies to pass through. They can also be designed with multiple stages of filtering to provide increased attenuation of unwanted frequencies.

Data line filters are commonly used in a variety of electronic systems, including computers, telecommunication equipment, medical equipment, and industrial control systems. They are also used in data centers and other applications where high-speed data communication is critical.