.hide-partial { max-height: none; } .show-more { display: none; }

Ferrite Beads

.catnav-wrapper { height: auto; overflow: visible; } .catalog-nav-tabs ul { white-space: normal; }

Results: 5,176

Applied Filters:

Manufacturer

Series

Product

Termination Style

Package / Case

Impedance

Maximum DC Current

Tolerance

Maximum DC Resistance

Minimum Operating Temperature

Maximum Operating Temperature

Length

Width

Height

Diameter

Qualification

Packaging

Reset All

Search within results

In Stock

Normally Stocked

Active

New Products

RoHS Compliant

.search-refine-wrapper { display: inline-block; min-width: 100%; } .scroll-body { overflow-x: visible; } .search-table-wrapper { overflow: visible; } .hide-partial { max-height: none; } .show-more { display: none; }

Download Table (.CSV)

Part #

Ferrite Beads 50ohms 100MHz 6A Monolithic 1206 SMD

HI1206T500R-10
Laird Technologies
1: $0.168
142,813In Stock

Mfr. Part #
HI1206T500R-10

Mouser Part #
875-HI1206T500R-10

Laird Technologies

Ferrite Beads 50ohms 100MHz 6A Monolithic 1206 SMD

Datasheet

142,813In Stock

More Info Available

Cut Tape

$0.168

$0.105

$0.082

$0.075

View

Reel

$0.044

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Ferrite Chip Beads

SMD/SMT

1206 (3216 metric)

50 Ohms

6 A

10 mOhms

- 55 C

+ 125 C

3.2 mm

1.6 mm

Reel, Cut Tape, MouseReel

Ferrite Beads 56ohms 100MHz 10A Monolithic 1612 SMD

HI1612X560R-10
Laird Technologies
1: $1.10
12,973In Stock
15,000On Order

Mfr. Part #
HI1612X560R-10

Mouser Part #
875-HI1612X560R-10

Laird Technologies

Ferrite Beads 56ohms 100MHz 10A Monolithic 1612 SMD

Datasheet

12,973In Stock

15,000On Order

Cut Tape

$1.10

$0.769

$0.663

$0.59

View

Reel

$0.372

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Ferrite Chip Beads

SMD/SMT

1612 (4131 metric)

56 Ohms

10 A

4 mOhms

- 55 C

+ 125 C

4.1 mm

3.1 mm

2.28 mm

Reel, Cut Tape, MouseReel

Ferrite Beads 80ohms 100MHz 6A Monolithic 1812 SMD

HI1812T800R-10
Laird Technologies
1: $1.08
12,664In Stock

Mfr. Part #
HI1812T800R-10

Mouser Part #
875-HI1812T800R-10

Laird Technologies

Ferrite Beads 80ohms 100MHz 6A Monolithic 1812 SMD

Datasheet

12,664In Stock

Cut Tape

$1.08

$0.763

$0.659

$0.586

View

Reel

$0.368

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Ferrite Chip Beads

SMD/SMT

1812 (4532 metric)

80 Ohms

6 A

10 mOhms

- 55 C

+ 125 C

4.5 mm

3.2 mm

5 mm

Reel, Cut Tape, MouseReel

Ferrite Beads 100ohms 100MHz 8A Monolithic 1812 SMD

HI1812V101R-10
Laird Technologies
1: $0.808
61,618In Stock
49,915On Order

Mfr. Part #
HI1812V101R-10

Mouser Part #
875-HI1812V101R-10

Laird Technologies

Ferrite Beads 100ohms 100MHz 8A Monolithic 1812 SMD

Datasheet

61,618In Stock

49,915On Order

Cut Tape

$0.808

$0.569

$0.491

$0.438

View

Reel

$0.29

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Ferrite Chip Beads

SMD/SMT

1812 (4532 metric)

100 Ohms

8 A

10 mOhms

- 55 C

+ 125 C

4.5 mm

3.2 mm

5 mm

Reel, Cut Tape, MouseReel

Ferrite Beads 175ohms 100MHz 4A Monolithic 2220 SMD

HI2220P171R-10
Laird Technologies
1: $1.98
4,486In Stock

Mfr. Part #
HI2220P171R-10

Mouser Part #
875-HI2220P171R-10

Laird Technologies

Ferrite Beads 175ohms 100MHz 4A Monolithic 2220 SMD

Datasheet

4,486In Stock

Cut Tape

$1.98

$1.36

$1.17

$1.05

View

Reel

$0.74

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

Ferrite Chip Beads

SMD/SMT

2220 (5651 metric)

170 Ohms

4 A

30 mOhms

- 55 C

+ 125 C

5.7 mm

5 mm

0.5 mm

Reel, Cut Tape, MouseReel

Ferrite Beads 250ohms 100MHz 4A Monolithic 2220 SMD

HI2220P251R-10
Laird Technologies
1: $2.17
8,109In Stock

Mfr. Part #
HI2220P251R-10

Mouser Part #
875-HI2220P251R-10

Laird Technologies

Ferrite Beads 250ohms 100MHz 4A Monolithic 2220 SMD

Datasheet

8,109In Stock

Cut Tape

$2.17

$1.49

$1.29

$1.15

View

Reel

$0.82

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

Ferrite Chip Beads

SMD/SMT

2220 (5651 metric)

250 Ohms

4 A

15 mOhms

- 55 C

+ 125 C

5.7 mm

5 mm

0.5 mm

Reel, Cut Tape, MouseReel

Ferrite Beads 100ohms 100MHz 6A Monolithic 2220 SMD

HI2220T101R-10
Laird Technologies
1: $1.66
3,948In Stock

Mfr. Part #
HI2220T101R-10

Mouser Part #
875-HI2220T101R-10

Laird Technologies

Ferrite Beads 100ohms 100MHz 6A Monolithic 2220 SMD

Datasheet

3,948In Stock

Cut Tape

$1.66

$1.16

$0.994

$0.881

View

Reel

$0.749

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

Ferrite Chip Beads

SMD/SMT

2220 (5651 metric)

100 Ohms

6 A

6 mOhms

- 55 C

+ 125 C

5.7 mm

5 mm

0.5 mm

Reel, Cut Tape, MouseReel

Ferrite Beads 600ohms 100MHz 4A Monolithic 2220 SMD

HR2220P601R-10
Laird Technologies
1: $3.43
3,308In Stock

Mfr. Part #
HR2220P601R-10

Mouser Part #
875-HR2220P601R-10

Laird Technologies

Ferrite Beads 600ohms 100MHz 4A Monolithic 2220 SMD

Datasheet

3,308In Stock

Cut Tape

$3.43

$2.39

$2.04

$1.89

Reel

$1.83

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

Ferrite Chip Beads

SMD/SMT

2220 (5651 metric)

600 Ohms

4 A

25 mOhms

- 40 C

+ 125 C

5.7 mm

5 mm

3.45 mm

Reel, Cut Tape, MouseReel

Ferrite Beads Broadband,1Ln 2220,HR

HR2220V701R-10
Laird Technologies
1: $5.06
4,988In Stock

Mfr. Part #
HR2220V701R-10

Mouser Part #
875-HR2220V701R-10

Laird Technologies

Ferrite Beads Broadband,1Ln 2220,HR

Datasheet

4,988In Stock

Cut Tape

$5.06

$3.48

$2.96

$2.59

View

Reel

$2.21

Min.: 1
Mult.: 1

: 2,000

Ferrite Chip Beads

SMD/SMT

2220 (5651 metric)

700 Ohms

8 A

10 mOhms

- 40 C

+ 125 C

5.7 mm

5 mm

3.61 mm

Reel, Cut Tape

Ferrite Beads 1500ohms 2ohms 50mA

HZ0402A152R-10
Laird Technologies
1: $0.503
94,383In Stock

Mfr. Part #
HZ0402A152R-10

Mouser Part #
875-HZ0402A152R-10

Laird Technologies

Ferrite Beads 1500ohms 2ohms 50mA

Datasheet

94,383In Stock

Cut Tape

$0.503

$0.351

$0.305

$0.271

View

Reel

$0.148

MouseReel Available

Min.: 1
Mult.: 1

: 10,000

Ferrite Chip Beads

SMD/SMT

0402 (1005 metric)

1.5 kOhms

50 mA

2 Ohms

- 40 C

+ 125 C

1.01 mm

0.5 mm

Reel, Cut Tape, MouseReel

Ferrite Beads Broadband,1Ln 0402,HZ

HZ0402A182R-10
Laird Technologies
1: $0.336
48,910In Stock
49,900On Order

Mfr. Part #
HZ0402A182R-10

Mouser Part #
875-HZ0402A182R-10

Laird Technologies

Ferrite Beads Broadband,1Ln 0402,HZ

Datasheet

48,910In Stock

49,900On Order

Cut Tape

$0.336

$0.227

$0.198

$0.177

View

Reel

$0.087

Min.: 1
Mult.: 1

: 10,000

Ferrite Chip Beads

Reel, Cut Tape

Ferrite Beads 600ohms 100MHz .1A Monolithic 0402 SMD

HZ0402A601R-10
Laird Technologies
1: $0.153
28,425In Stock

Mfr. Part #
HZ0402A601R-10

Mouser Part #
875-HZ0402A601R-10

Laird Technologies

Ferrite Beads 600ohms 100MHz .1A Monolithic 0402 SMD

Datasheet

28,425In Stock

More Info Available

Cut Tape

$0.153

$0.116

Reel

$0.116

MouseReel Available

Min.: 1
Mult.: 1

: 10,000

Ferrite Chip Beads

SMD/SMT

0402 (1005 metric)

600 Ohms

100 mA

1 kOhms

- 40 C

+ 125 C

1.01 mm

0.5 mm

Reel, Cut Tape, MouseReel

Ferrite Beads 1000ohms 1ohms 200mA

HZ0402B102R-10
Laird Technologies
1: $0.244
22,115In Stock
50,000On Order

Mfr. Part #
HZ0402B102R-10

Mouser Part #
875-HZ0402B102R-10

Laird Technologies

Ferrite Beads 1000ohms 1ohms 200mA

Datasheet

22,115In Stock

50,000On Order

Cut Tape

$0.244

$0.174

$0.151

$0.136

View

Reel

$0.11

MouseReel Available

Min.: 1
Mult.: 1

: 10,000

Ferrite Chip Beads

SMD/SMT

0402 (1005 metric)

1 kOhms

200 mA

1 kOhms

- 40 C

+ 125 C

1.01 mm

0.5 mm

Reel, Cut Tape, MouseReel

Ferrite Beads Broadband,1Ln 0402,HZ

HZ0402D601R-10
Laird Technologies
1: $0.397
42,811In Stock

Mfr. Part #
HZ0402D601R-10

Mouser Part #
875-HZ0402D601R-10

Laird Technologies

Ferrite Beads Broadband,1Ln 0402,HZ

Datasheet

42,811In Stock

Cut Tape

$0.397

$0.273

$0.236

$0.212

View

Reel

$0.119

MouseReel Available

Min.: 1
Mult.: 1

: 10,000

Ferrite Chip Beads

SMD/SMT

600 Ohms

- 40 C

+ 125 C

1.01 mm

0.5 mm

Reel, Cut Tape, MouseReel

Ferrite Beads 2200ohms 100MHz .1A Monolithic 0603 SMD

HZ0603A222R-10
Laird Technologies
1: $0.275
50,142In Stock

Mfr. Part #
HZ0603A222R-10

Mouser Part #
875-HZ0603A222R-10

Laird Technologies

Ferrite Beads 2200ohms 100MHz .1A Monolithic 0603 SMD

Datasheet

50,142In Stock

Cut Tape

$0.275

$0.188

$0.163

$0.146

View

Reel

$0.087

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Ferrite Chip Beads

SMD/SMT

0603 (1608 metric)

2.2 kOhms

100 mA

1.5 Ohms

- 40 C

+ 125 C

1.6 mm

0.5 mm

Reel, Cut Tape, MouseReel

Ferrite Beads 1000ohms 100MHz .2A Monolithic 0603 SMD

HZ0603B102R-10
Laird Technologies
1: $0.153
109,269In Stock

Mfr. Part #
HZ0603B102R-10

Mouser Part #
875-HZ0603B102R-10

Laird Technologies

Ferrite Beads 1000ohms 100MHz .2A Monolithic 0603 SMD

Datasheet

109,269In Stock

Cut Tape

$0.153

$0.078

$0.061

$0.055

View

Reel

$0.046

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Ferrite Chip Beads

SMD/SMT

0603 (1608 metric)

1 kOhms

200 mA

600 mOhms

- 40 C

+ 125 C

1.6 mm

0.5 mm

Reel, Cut Tape, MouseReel

Ferrite Beads 1100ohms 100MHz .2A Monolithic 0603 SMD

HZ0603B112R-10
Laird Technologies
1: $0.229
105,385In Stock

Mfr. Part #
HZ0603B112R-10

Mouser Part #
875-HZ0603B112R-10

Laird Technologies

Ferrite Beads 1100ohms 100MHz .2A Monolithic 0603 SMD

Datasheet

105,385In Stock

Cut Tape

$0.229

$0.162

$0.142

$0.127

View

Reel

$0.084

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Ferrite Chip Beads

SMD/SMT

0603 (1608 metric)

1.1 kOhms

200 mA

800 mOhms

- 40 C

+ 125 C

1.6 mm

0.5 mm

Reel, Cut Tape, MouseReel

Ferrite Beads 750ohms 100MHz .2A Monolithic 0603 SMD

HZ0603B751R-10
Laird Technologies
1: $0.214
103,895In Stock

Mfr. Part #
HZ0603B751R-10

Mouser Part #
875-HZ0603B751R-10

Laird Technologies

Ferrite Beads 750ohms 100MHz .2A Monolithic 0603 SMD

Datasheet

103,895In Stock

Cut Tape

$0.214

$0.154

$0.134

$0.12

View

Reel

$0.058

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Ferrite Chip Beads

SMD/SMT

0603 (1608 metric)

750 Ohms

200 mA

600 mOhms

- 40 C

+ 125 C

1.6 mm

0.5 mm

Reel, Cut Tape, MouseReel

Ferrite Beads 600ohms 100MHz 300mA Monolithic 0603 SMD

HZ0603C601R-10
Laird Technologies
1: $0.244
87,697In Stock

Mfr. Part #
HZ0603C601R-10

Mouser Part #
875-HZ0603C601R-10

Laird Technologies

Ferrite Beads 600ohms 100MHz 300mA Monolithic 0603 SMD

Datasheet

87,697In Stock

More Info Available

Cut Tape

$0.244

$0.163

$0.142

$0.114

Reel

$0.055

View

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Ferrite Chip Beads

SMD/SMT

0603 (1608 metric)

600 Ohms

300 mA

450 mOhms

- 40 C

+ 125 C

1.6 mm

0.5 mm

Reel, Cut Tape, MouseReel

Ferrite Beads 2700ohms 100MHz .2A Monolithic 0805 SMD

HZ0805B272R-10
Laird Technologies
1: $0.595
20,259In Stock

Mfr. Part #
HZ0805B272R-10

Mouser Part #
875-HZ0805B272R-10

Laird Technologies

Ferrite Beads 2700ohms 100MHz .2A Monolithic 0805 SMD

Datasheet

20,259In Stock

Cut Tape

$0.595

$0.413

$0.358

$0.32

View

Reel

$0.18

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

Ferrite Chip Beads

SMD/SMT

0805 (2012 metric)

2.7 kOhms

200 mA

800 mOhms

- 40 C

+ 125 C

2 mm

1.25 mm

Reel, Cut Tape, MouseReel

Ferrite Beads 2000ohms 100MHz .3A Monolithic 0805 SMD

HZ0805C202R-10
Laird Technologies
1: $0.153
82,798In Stock

Mfr. Part #
HZ0805C202R-10

Mouser Part #
875-HZ0805C202R-10

Laird Technologies

Ferrite Beads 2000ohms 100MHz .3A Monolithic 0805 SMD

Datasheet

82,798In Stock

Cut Tape

$0.153

$0.113

$0.099

$0.088

View

Reel

$0.078

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Ferrite Chip Beads

SMD/SMT

0805 (2012 metric)

2 kOhms

300 mA

500 mOhms

- 40 C

+ 125 C

2 mm

1.25 mm

Reel, Cut Tape, MouseReel

Ferrite Beads 1000ohms 100MHz .4A Monolithic 0805 SMD

HZ0805D102R-10
Laird Technologies
1: $0.259
30,225In Stock

Mfr. Part #
HZ0805D102R-10

Mouser Part #
875-HZ0805D102R-10

Laird Technologies

Ferrite Beads 1000ohms 100MHz .4A Monolithic 0805 SMD

Datasheet

30,225In Stock

Cut Tape

$0.259

$0.186

$0.162

$0.145

View

Reel

$0.095

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Ferrite Chip Beads

SMD/SMT

0805 (2012 metric)

1 kOhms

400 mA

300 mOhms

- 40 C

+ 125 C

2 mm

1.25 mm

Reel, Cut Tape, MouseReel

Ferrite Beads 2000ohms 30MHz .3A Monolithic 1206 SMD

HZ1206C202R-10
Laird Technologies
1: $0.153
75,071In Stock

Mfr. Part #
HZ1206C202R-10

Mouser Part #
875-HZ1206C202R-10

Laird Technologies

Ferrite Beads 2000ohms 30MHz .3A Monolithic 1206 SMD

Datasheet

75,071In Stock

Cut Tape

$0.153

$0.11

$0.096

$0.087

$0.084

Reel

$0.084

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Ferrite Chip Beads

SMD/SMT

1206 (3216 metric)

2 kOhms

300 mA

500 mOhms

- 40 C

+ 125 C

3.2 mm

1.6 mm

1.4 mm

Reel, Cut Tape, MouseReel

Ferrite Beads FERRITE CHIP BEAD 1500ohms 500mA

HZ1206E152R-10
Laird Technologies
1: $0.763
23,606In Stock

Mfr. Part #
HZ1206E152R-10

Mouser Part #
875-HZ1206E152R-10

Laird Technologies

Ferrite Beads FERRITE CHIP BEAD 1500ohms 500mA

Datasheet

23,606In Stock

Cut Tape

$0.763

$0.535

$0.462

$0.412

View

Reel

$0.281

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Ferrite Chip Beads

SMD/SMT

1206 (3216 metric)

1.5 kOhms

500 mA

300 mOhms

- 40 C

+ 125 C

3.2 mm

1.6 mm

1.1 mm

Reel, Cut Tape, MouseReel

Ferrite Beads 1000ohms 0.15ohms 1.5A

HZ1806K102R-10
Laird Technologies
1: $1.74
11,982In Stock

Mfr. Part #
HZ1806K102R-10

Mouser Part #
875-HZ1806K102R-10

Laird Technologies

Ferrite Beads 1000ohms 0.15ohms 1.5A

Datasheet

11,982In Stock

Cut Tape

$1.74

$1.21

$1.04

$0.923

View

Reel

$0.633

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

Ferrite Chip Beads

SMD/SMT

1806 (4516 metric)

1 kOhms

1.5 A

150 mOhms

- 40 C

+ 125 C

4.5 mm

1.6 mm

Reel, Cut Tape, MouseReel

Ferrite Beads

Mouser Electronics®

Company

Resources

Support

ABRACON
AEM
Bel
Bourns
Delevan
Eaton
Fair-Rite
Fastron
KEMET
KOA Speer
Laird Technologies
Murata
Niterra
Proterial
Pulse
Spectrum Control
TAIYO YUDEN
TDK
TE Connectivity
Vishay
Walsin
Wurth Elektronik

19
25
26
27
29
4212
4221
06H
28C
28F
28L
35F
4212R
4221R
ABBK
ABGK
ABNQ
ABPY
ABSJ
ABSY

Chip Beads
Chip Inductors
Chokes
EMC Filters
EMI Filter Arrays
EMI Filters
EMI Multilayer Power Suppression Beads
EMI Suppression 5 Hole Ferrite Bead
EMI Suppression Ferrite Beads
Ferrite Bead
Ferrite Beads
Ferrite Beads on Leads
Ferrite Chip Bead Arrays
Ferrite Chip Beads
Ferrite Chip Beads, Differential Mode
Ferrite Wound Beads
Filters
Flat Ribbon Cable Cores Solid
Multi-Hole Cores
Multilayer Chip Beads

01005 (0402 metric)
0201 (0603 metric)
0402 (1005 metric)
0603 (1608 metric)
0804 (2010 metric)
0805 (2012 metric)
0806 (2016 metric)
1005 (0402 metric)
1008 (2520 metric)
1204 (3216 metric)
1206 (3216 metric)
1210 (3225 metric)
1612 (4131 metric)
1806 (4516 metric)
1810 (4525 metric)
1812 (4532 metric)
1813 (4532 metric)
2218 (5650 metric)
2219 (5650 metric)
2220 (5650 metric)

0 Ohms
115 mOhms
220 mOhms, 360 mOhms
300 mOhms
500 mOhms
1 Ohms
1.05 Ohms
1.15 Ohms, 6.35 Ohms, 10.5 Ohms
1.24 Ohms
1.45 Ohms, 7.85 Ohms, 13 Ohms
1.5 Ohms
1.6 Ohms, 7.65 Ohms, 12 Ohms
1.75 Ohms, 9.35 Ohms, 15.5 Ohms
2 Ohms
2.9 Ohms
3 Ohms
3.1 Ohms
3.3 Ohms
3.6 Ohms
4 Ohms

3 mA
50 mA
80 mA
100 mA
120 mA
125 mA
130 mA
135 mA
140 mA
150 mA
160 mA
170 mA
175 mA
180 mA
185 mA
190 mA
200 mA
210 mA
215 mA
220 mA

0 Ohms to 11 Ohms
0 Ohms to 15 Ohms
2 %
2 Ohms
3 Ohms
5 %
5 Ohms
5 Ohms to 13 Ohms
7 %
7 Ohms
7 Ohms to 15 Ohms
9 Ohms to 21 Ohms
10 %
10 Ohms
12 Ohms to 25 Ohms
20 %
25 %
30 %
35 %
40 %

250 uOhms
600 uOhms
750 uOhms
800 uOhms
900 uOhms
1 mOhms
1.1 mOhms
1.2 mOhms
1.25 mOhms
1.6 mOhms
3 mOhms
3.8 mOhms
4 mOhms
5 mOhms
6 mOhms
6.2 mOhms
7 mOhms
8 mOhms
9 mOhms
10 mOhms

0.4 mm
0.6 mm
1 mm
1.01 mm
1.6 mm
2 mm
2.5 mm
3 mm
3.1 mm
3.2 mm
3.68 mm
4 mm
4.06 mm
4.1 mm
4.2 mm
4.45 mm
4.5 mm
4.7 mm
4.9 mm
5 mm

0.2 mm
0.3 mm
0.5 mm
0.6 mm
0.8 mm
1 mm
1.2 mm
1.25 mm
1.6 mm
2 mm
2.5 mm
2.9 mm
2.97 mm
3 mm
3.05 mm
3.1 mm
3.15 mm
3.19 mm
3.2 mm
3.8 mm

0.2 mm
0.3 mm
0.33 mm
0.4 mm
0.5 mm
0.55 mm
0.6 mm
0.65 mm
0.75 mm
0.8 mm
0.85 mm
0.9 mm
0.95 mm
1 mm
1.1 mm
1.2 mm
1.25 mm
1.3 mm
1.4 mm
1.5 mm

1.1 mm
1.65 mm
1.95 mm
2.85 mm
3.4 mm
3.5 mm
3.51 mm
3.6 mm
3.7 mm
4 mm
5 mm
6 mm
6.3 mm
6.35 mm
9.8 mm
10 mm
12.7 mm
14 mm
15.3 mm
16 mm