Page 159 - Bourns Inc. Products - Trimmer Potentiometers

3299Y-1-202
Bourns Inc.

TRIMMER 2K OHM 0.5W PC PIN

Package: -

Stock6,102
3299Y-1-501
Bourns Inc.

TRIMMER 500 OHM 0.5W PC PIN

Package: -

Stock3,852
3299Y-1-201
Bourns Inc.

TRIMMER 200 OHM 0.5W PC PIN

Package: -

Stock2,862
3299Y-1-101
Bourns Inc.

TRIMMER 100 OHM 0.5W PC PIN

Package: -

Stock8,208
3299Y-1-500
Bourns Inc.

TRIMMER 50 OHM 0.5W PC PIN

Package: -

Stock7,866
3299Y-1-200
Bourns Inc.

TRIMMER 20 OHM 0.5W PC PIN

Package: -

Stock3,258
3299Y-1-100
Bourns Inc.

TRIMMER 10 OHM 0.5W PC PIN

Package: -

Stock2,610
3299X-1-205
Bourns Inc.

TRIMMER 2M OHM 0.5W PC PIN

Package: -

Stock4,410
3299X-1-105
Bourns Inc.

TRIMMER 1M OHM 0.5W PC PIN

Package: -

Stock8,262
3299X-1-504
Bourns Inc.

TRIMMER 500K OHM 0.5W PC PIN

Package: -

Stock2,844
3299X-1-254
Bourns Inc.

TRIMMER 250K OHM 0.5W PC PIN

Package: -

Stock7,326
3299X-1-204
Bourns Inc.

TRIMMER 200K OHM 0.5W PC PIN

Package: -

Stock7,632
3299X-1-104
Bourns Inc.

TRIMMER 100K OHM 0.5W PC PIN

Package: -

Stock7,812
3299X-1-503
Bourns Inc.

TRIMMER 50K OHM 0.5W PC PIN

Package: -

Stock5,994
3299X-1-253
Bourns Inc.

TRIMMER 25K OHM 0.5W PC PIN

Package: -

Stock4,284
3299X-1-502
Bourns Inc.

TRIMMER 5K OHM 0.5W PC PIN

Package: -

Stock2,358
3299X-1-501
Bourns Inc.

TRIMMER 500 OHM 0.5W PC PIN

Package: -

Stock2,106
3299X-1-201
Bourns Inc.

TRIMMER 200 OHM 0.5W PC PIN

Package: -

Stock2,808
3299X-1-101
Bourns Inc.

TRIMMER 100 OHM 0.5W PC PIN

Package: -

Stock3,870
3299X-1-500
Bourns Inc.

TRIMMER 50 OHM 0.5W PC PIN

Package: -

Stock4,914

Part Number	Manufacturer	Description	Package	Stock	Power (Watts)	Tolerance	Temperature Coefficient	Number of Turns	Adjustment Type	Resistive Material	Mounting Type	Termination Style	Size / Dimension
3299Y-1-202	Bourns Inc.	TRIMMER 2K OHM 0.5W PC PIN Resistance: 2 kOhms Power (Watts): 0.5W, 1/2W Tolerance: ±10% Temperature Coefficient: ±100ppm/°C Number of Turns: 25 Adjustment Type: Top Adjustment Resistive Material: Cermet Mounting Type: Through Hole Termination Style: PC Pins Size / Dimension: Rectangular - 0.375" x 0.240" Face x 0.395" H (9.53mm x 6.10mm x 10.03mm)	Package: -	Stock6,102	0.5W, 1/2W	±10%	±100ppm/°C	25	Top Adjustment	Cermet	Through Hole	PC Pins	Rectangular - 0.375" x 0.240" Face x 0.395" H (9.53mm x 6.10mm x 10.03mm)
3299Y-1-501	Bourns Inc.	TRIMMER 500 OHM 0.5W PC PIN Resistance: 500 Ohms Power (Watts): 0.5W, 1/2W Tolerance: ±10% Temperature Coefficient: ±100ppm/°C Number of Turns: 25 Adjustment Type: Top Adjustment Resistive Material: Cermet Mounting Type: Through Hole Termination Style: PC Pins Size / Dimension: Rectangular - 0.375" x 0.240" Face x 0.395" H (9.53mm x 6.10mm x 10.03mm)	Package: -	Stock3,852	0.5W, 1/2W	±10%	±100ppm/°C	25	Top Adjustment	Cermet	Through Hole	PC Pins	Rectangular - 0.375" x 0.240" Face x 0.395" H (9.53mm x 6.10mm x 10.03mm)
3299Y-1-201	Bourns Inc.	TRIMMER 200 OHM 0.5W PC PIN Resistance: 200 Ohms Power (Watts): 0.5W, 1/2W Tolerance: ±10% Temperature Coefficient: ±100ppm/°C Number of Turns: 25 Adjustment Type: Top Adjustment Resistive Material: Cermet Mounting Type: Through Hole Termination Style: PC Pins Size / Dimension: Rectangular - 0.375" x 0.240" Face x 0.395" H (9.53mm x 6.10mm x 10.03mm)	Package: -	Stock2,862	0.5W, 1/2W	±10%	±100ppm/°C	25	Top Adjustment	Cermet	Through Hole	PC Pins	Rectangular - 0.375" x 0.240" Face x 0.395" H (9.53mm x 6.10mm x 10.03mm)
3299Y-1-101	Bourns Inc.	TRIMMER 100 OHM 0.5W PC PIN Resistance: 100 Ohms Power (Watts): 0.5W, 1/2W Tolerance: ±10% Temperature Coefficient: ±100ppm/°C Number of Turns: 25 Adjustment Type: Top Adjustment Resistive Material: Cermet Mounting Type: Through Hole Termination Style: PC Pins Size / Dimension: Rectangular - 0.375" x 0.240" Face x 0.395" H (9.53mm x 6.10mm x 10.03mm)	Package: -	Stock8,208	0.5W, 1/2W	±10%	±100ppm/°C	25	Top Adjustment	Cermet	Through Hole	PC Pins	Rectangular - 0.375" x 0.240" Face x 0.395" H (9.53mm x 6.10mm x 10.03mm)
3299Y-1-500	Bourns Inc.	TRIMMER 50 OHM 0.5W PC PIN Resistance: 50 Ohms Power (Watts): 0.5W, 1/2W Tolerance: ±10% Temperature Coefficient: ±100ppm/°C Number of Turns: 25 Adjustment Type: Top Adjustment Resistive Material: Cermet Mounting Type: Through Hole Termination Style: PC Pins Size / Dimension: Rectangular - 0.375" x 0.240" Face x 0.395" H (9.53mm x 6.10mm x 10.03mm)	Package: -	Stock7,866	0.5W, 1/2W	±10%	±100ppm/°C	25	Top Adjustment	Cermet	Through Hole	PC Pins	Rectangular - 0.375" x 0.240" Face x 0.395" H (9.53mm x 6.10mm x 10.03mm)
3299Y-1-200	Bourns Inc.	TRIMMER 20 OHM 0.5W PC PIN Resistance: 20 Ohms Power (Watts): 0.5W, 1/2W Tolerance: ±10% Temperature Coefficient: ±100ppm/°C Number of Turns: 25 Adjustment Type: Top Adjustment Resistive Material: Cermet Mounting Type: Through Hole Termination Style: PC Pins Size / Dimension: Rectangular - 0.375" x 0.240" Face x 0.395" H (9.53mm x 6.10mm x 10.03mm)	Package: -	Stock3,258	0.5W, 1/2W	±10%	±100ppm/°C	25	Top Adjustment	Cermet	Through Hole	PC Pins	Rectangular - 0.375" x 0.240" Face x 0.395" H (9.53mm x 6.10mm x 10.03mm)
3299Y-1-100	Bourns Inc.	TRIMMER 10 OHM 0.5W PC PIN Resistance: 10 Ohms Power (Watts): 0.5W, 1/2W Tolerance: ±10% Temperature Coefficient: ±100ppm/°C Number of Turns: 25 Adjustment Type: Top Adjustment Resistive Material: Cermet Mounting Type: Through Hole Termination Style: PC Pins Size / Dimension: Rectangular - 0.375" x 0.240" Face x 0.395" H (9.53mm x 6.10mm x 10.03mm)	Package: -	Stock2,610	0.5W, 1/2W	±10%	±100ppm/°C	25	Top Adjustment	Cermet	Through Hole	PC Pins	Rectangular - 0.375" x 0.240" Face x 0.395" H (9.53mm x 6.10mm x 10.03mm)
3299X-1-205	Bourns Inc.	TRIMMER 2M OHM 0.5W PC PIN Resistance: 2 MOhms Power (Watts): 0.5W, 1/2W Tolerance: ±10% Temperature Coefficient: ±100ppm/°C Number of Turns: 25 Adjustment Type: Side Adjustment Resistive Material: Cermet Mounting Type: Through Hole Termination Style: PC Pins Size / Dimension: Rectangular - 0.395" x 0.240" Face x 0.395" H (10.03mm x 6.10mm x 10.03mm)	Package: -	Stock4,410	0.5W, 1/2W	±10%	±100ppm/°C	25	Side Adjustment	Cermet	Through Hole	PC Pins	Rectangular - 0.395" x 0.240" Face x 0.395" H (10.03mm x 6.10mm x 10.03mm)
3299X-1-105	Bourns Inc.	TRIMMER 1M OHM 0.5W PC PIN Resistance: 1 MOhms Power (Watts): 0.5W, 1/2W Tolerance: ±10% Temperature Coefficient: ±100ppm/°C Number of Turns: 25 Adjustment Type: Side Adjustment Resistive Material: Cermet Mounting Type: Through Hole Termination Style: PC Pins Size / Dimension: Rectangular - 0.395" x 0.240" Face x 0.395" H (10.03mm x 6.10mm x 10.03mm)	Package: -	Stock8,262	0.5W, 1/2W	±10%	±100ppm/°C	25	Side Adjustment	Cermet	Through Hole	PC Pins	Rectangular - 0.395" x 0.240" Face x 0.395" H (10.03mm x 6.10mm x 10.03mm)
3299X-1-504	Bourns Inc.	TRIMMER 500K OHM 0.5W PC PIN Resistance: 500 kOhms Power (Watts): 0.5W, 1/2W Tolerance: ±10% Temperature Coefficient: ±100ppm/°C Number of Turns: 25 Adjustment Type: Side Adjustment Resistive Material: Cermet Mounting Type: Through Hole Termination Style: PC Pins Size / Dimension: Rectangular - 0.395" x 0.240" Face x 0.395" H (10.03mm x 6.10mm x 10.03mm)	Package: -	Stock2,844	0.5W, 1/2W	±10%	±100ppm/°C	25	Side Adjustment	Cermet	Through Hole	PC Pins	Rectangular - 0.395" x 0.240" Face x 0.395" H (10.03mm x 6.10mm x 10.03mm)
3299X-1-254	Bourns Inc.	TRIMMER 250K OHM 0.5W PC PIN Resistance: 250 kOhms Power (Watts): 0.5W, 1/2W Tolerance: ±10% Temperature Coefficient: ±100ppm/°C Number of Turns: 25 Adjustment Type: Side Adjustment Resistive Material: Cermet Mounting Type: Through Hole Termination Style: PC Pins Size / Dimension: Rectangular - 0.395" x 0.240" Face x 0.395" H (10.03mm x 6.10mm x 10.03mm)	Package: -	Stock7,326	0.5W, 1/2W	±10%	±100ppm/°C	25	Side Adjustment	Cermet	Through Hole	PC Pins	Rectangular - 0.395" x 0.240" Face x 0.395" H (10.03mm x 6.10mm x 10.03mm)
3299X-1-204	Bourns Inc.	TRIMMER 200K OHM 0.5W PC PIN Resistance: 200 kOhms Power (Watts): 0.5W, 1/2W Tolerance: ±10% Temperature Coefficient: ±100ppm/°C Number of Turns: 25 Adjustment Type: Side Adjustment Resistive Material: Cermet Mounting Type: Through Hole Termination Style: PC Pins Size / Dimension: Rectangular - 0.395" x 0.240" Face x 0.395" H (10.03mm x 6.10mm x 10.03mm)	Package: -	Stock7,632	0.5W, 1/2W	±10%	±100ppm/°C	25	Side Adjustment	Cermet	Through Hole	PC Pins	Rectangular - 0.395" x 0.240" Face x 0.395" H (10.03mm x 6.10mm x 10.03mm)
3299X-1-104	Bourns Inc.	TRIMMER 100K OHM 0.5W PC PIN Resistance: 100 kOhms Power (Watts): 0.5W, 1/2W Tolerance: ±10% Temperature Coefficient: ±100ppm/°C Number of Turns: 25 Adjustment Type: Side Adjustment Resistive Material: Cermet Mounting Type: Through Hole Termination Style: PC Pins Size / Dimension: Rectangular - 0.395" x 0.240" Face x 0.395" H (10.03mm x 6.10mm x 10.03mm)	Package: -	Stock7,812	0.5W, 1/2W	±10%	±100ppm/°C	25	Side Adjustment	Cermet	Through Hole	PC Pins	Rectangular - 0.395" x 0.240" Face x 0.395" H (10.03mm x 6.10mm x 10.03mm)
3299X-1-503	Bourns Inc.	TRIMMER 50K OHM 0.5W PC PIN Resistance: 50 kOhms Power (Watts): 0.5W, 1/2W Tolerance: ±10% Temperature Coefficient: ±100ppm/°C Number of Turns: 25 Adjustment Type: Side Adjustment Resistive Material: Cermet Mounting Type: Through Hole Termination Style: PC Pins Size / Dimension: Rectangular - 0.395" x 0.240" Face x 0.395" H (10.03mm x 6.10mm x 10.03mm)	Package: -	Stock5,994	0.5W, 1/2W	±10%	±100ppm/°C	25	Side Adjustment	Cermet	Through Hole	PC Pins	Rectangular - 0.395" x 0.240" Face x 0.395" H (10.03mm x 6.10mm x 10.03mm)
3299X-1-253	Bourns Inc.	TRIMMER 25K OHM 0.5W PC PIN Resistance: 25 kOhms Power (Watts): 0.5W, 1/2W Tolerance: ±10% Temperature Coefficient: ±100ppm/°C Number of Turns: 25 Adjustment Type: Side Adjustment Resistive Material: Cermet Mounting Type: Through Hole Termination Style: PC Pins Size / Dimension: Rectangular - 0.395" x 0.240" Face x 0.395" H (10.03mm x 6.10mm x 10.03mm)	Package: -	Stock4,284	0.5W, 1/2W	±10%	±100ppm/°C	25	Side Adjustment	Cermet	Through Hole	PC Pins	Rectangular - 0.395" x 0.240" Face x 0.395" H (10.03mm x 6.10mm x 10.03mm)
3299X-1-502	Bourns Inc.	TRIMMER 5K OHM 0.5W PC PIN Resistance: 5 kOhms Power (Watts): 0.5W, 1/2W Tolerance: ±10% Temperature Coefficient: ±100ppm/°C Number of Turns: 25 Adjustment Type: Side Adjustment Resistive Material: Cermet Mounting Type: Through Hole Termination Style: PC Pins Size / Dimension: Rectangular - 0.395" x 0.240" Face x 0.395" H (10.03mm x 6.10mm x 10.03mm)	Package: -	Stock2,358	0.5W, 1/2W	±10%	±100ppm/°C	25	Side Adjustment	Cermet	Through Hole	PC Pins	Rectangular - 0.395" x 0.240" Face x 0.395" H (10.03mm x 6.10mm x 10.03mm)
3299X-1-501	Bourns Inc.	TRIMMER 500 OHM 0.5W PC PIN Resistance: 500 Ohms Power (Watts): 0.5W, 1/2W Tolerance: ±10% Temperature Coefficient: ±100ppm/°C Number of Turns: 25 Adjustment Type: Side Adjustment Resistive Material: Cermet Mounting Type: Through Hole Termination Style: PC Pins Size / Dimension: Rectangular - 0.395" x 0.240" Face x 0.395" H (10.03mm x 6.10mm x 10.03mm)	Package: -	Stock2,106	0.5W, 1/2W	±10%	±100ppm/°C	25	Side Adjustment	Cermet	Through Hole	PC Pins	Rectangular - 0.395" x 0.240" Face x 0.395" H (10.03mm x 6.10mm x 10.03mm)
3299X-1-201	Bourns Inc.	TRIMMER 200 OHM 0.5W PC PIN Resistance: 200 Ohms Power (Watts): 0.5W, 1/2W Tolerance: ±10% Temperature Coefficient: ±100ppm/°C Number of Turns: 25 Adjustment Type: Side Adjustment Resistive Material: Cermet Mounting Type: Through Hole Termination Style: PC Pins Size / Dimension: Rectangular - 0.395" x 0.240" Face x 0.395" H (10.03mm x 6.10mm x 10.03mm)	Package: -	Stock2,808	0.5W, 1/2W	±10%	±100ppm/°C	25	Side Adjustment	Cermet	Through Hole	PC Pins	Rectangular - 0.395" x 0.240" Face x 0.395" H (10.03mm x 6.10mm x 10.03mm)
3299X-1-101	Bourns Inc.	TRIMMER 100 OHM 0.5W PC PIN Resistance: 100 Ohms Power (Watts): 0.5W, 1/2W Tolerance: ±10% Temperature Coefficient: ±100ppm/°C Number of Turns: 25 Adjustment Type: Side Adjustment Resistive Material: Cermet Mounting Type: Through Hole Termination Style: PC Pins Size / Dimension: Rectangular - 0.395" x 0.240" Face x 0.395" H (10.03mm x 6.10mm x 10.03mm)	Package: -	Stock3,870	0.5W, 1/2W	±10%	±100ppm/°C	25	Side Adjustment	Cermet	Through Hole	PC Pins	Rectangular - 0.395" x 0.240" Face x 0.395" H (10.03mm x 6.10mm x 10.03mm)
3299X-1-500	Bourns Inc.	TRIMMER 50 OHM 0.5W PC PIN Resistance: 50 Ohms Power (Watts): 0.5W, 1/2W Tolerance: ±10% Temperature Coefficient: ±100ppm/°C Number of Turns: 25 Adjustment Type: Side Adjustment Resistive Material: Cermet Mounting Type: Through Hole Termination Style: PC Pins Size / Dimension: Rectangular - 0.395" x 0.240" Face x 0.395" H (10.03mm x 6.10mm x 10.03mm)	Package: -	Stock4,914	0.5W, 1/2W	±10%	±100ppm/°C	25	Side Adjustment	Cermet	Through Hole	PC Pins	Rectangular - 0.395" x 0.240" Face x 0.395" H (10.03mm x 6.10mm x 10.03mm)
3299X-1-200	Bourns Inc.	TRIMMER 20 OHM 0.5W PC PIN Resistance: 20 Ohms Power (Watts): 0.5W, 1/2W Tolerance: ±10% Temperature Coefficient: ±100ppm/°C Number of Turns: 25 Adjustment Type: Side Adjustment Resistive Material: Cermet Mounting Type: Through Hole Termination Style: PC Pins Size / Dimension: Rectangular - 0.395" x 0.240" Face x 0.395" H (10.03mm x 6.10mm x 10.03mm)	Package: -	Stock3,598	0.5W, 1/2W	±10%	±100ppm/°C	25	Side Adjustment	Cermet	Through Hole	PC Pins	Rectangular - 0.395" x 0.240" Face x 0.395" H (10.03mm x 6.10mm x 10.03mm)
3299X-1-100	Bourns Inc.	TRIMMER 10 OHM 0.5W PC PIN Resistance: 10 Ohms Power (Watts): 0.5W, 1/2W Tolerance: ±10% Temperature Coefficient: ±100ppm/°C Number of Turns: 25 Adjustment Type: Side Adjustment Resistive Material: Cermet Mounting Type: Through Hole Termination Style: PC Pins Size / Dimension: Rectangular - 0.395" x 0.240" Face x 0.395" H (10.03mm x 6.10mm x 10.03mm)	Package: -	Stock5,832	0.5W, 1/2W	±10%	±100ppm/°C	25	Side Adjustment	Cermet	Through Hole	PC Pins	Rectangular - 0.395" x 0.240" Face x 0.395" H (10.03mm x 6.10mm x 10.03mm)
3299W-1-205	Bourns Inc.	TRIMMER 2M OHM 0.5W PC PIN Resistance: 2 MOhms Power (Watts): 0.5W, 1/2W Tolerance: ±10% Temperature Coefficient: ±100ppm/°C Number of Turns: 25 Adjustment Type: Top Adjustment Resistive Material: Cermet Mounting Type: Through Hole Termination Style: PC Pins Size / Dimension: Rectangular - 0.375" x 0.240" Face x 0.395" H (9.53mm x 6.10mm x 10.03mm)	Package: -	Stock3,024	0.5W, 1/2W	±10%	±100ppm/°C	25	Top Adjustment	Cermet	Through Hole	PC Pins	Rectangular - 0.375" x 0.240" Face x 0.395" H (9.53mm x 6.10mm x 10.03mm)
3299W-1-105	Bourns Inc.	TRIMMER 1M OHM 0.5W PC PIN Resistance: 1 MOhms Power (Watts): 0.5W, 1/2W Tolerance: ±10% Temperature Coefficient: ±100ppm/°C Number of Turns: 25 Adjustment Type: Top Adjustment Resistive Material: Cermet Mounting Type: Through Hole Termination Style: PC Pins Size / Dimension: Rectangular - 0.375" x 0.240" Face x 0.395" H (9.53mm x 6.10mm x 10.03mm)	Package: -	Stock2,286	0.5W, 1/2W	±10%	±100ppm/°C	25	Top Adjustment	Cermet	Through Hole	PC Pins	Rectangular - 0.375" x 0.240" Face x 0.395" H (9.53mm x 6.10mm x 10.03mm)
3299W-1-504	Bourns Inc.	TRIMMER 500K OHM 0.5W PC PIN Resistance: 500 kOhms Power (Watts): 0.5W, 1/2W Tolerance: ±10% Temperature Coefficient: ±100ppm/°C Number of Turns: 25 Adjustment Type: Top Adjustment Resistive Material: Cermet Mounting Type: Through Hole Termination Style: PC Pins Size / Dimension: Rectangular - 0.375" x 0.240" Face x 0.395" H (9.53mm x 6.10mm x 10.03mm)	Package: -	Stock2,862	0.5W, 1/2W	±10%	±100ppm/°C	25	Top Adjustment	Cermet	Through Hole	PC Pins	Rectangular - 0.375" x 0.240" Face x 0.395" H (9.53mm x 6.10mm x 10.03mm)
3299W-1-254	Bourns Inc.	TRIMMER 250K OHM 0.5W PC PIN Resistance: 250 kOhms Power (Watts): 0.5W, 1/2W Tolerance: ±10% Temperature Coefficient: ±100ppm/°C Number of Turns: 25 Adjustment Type: Top Adjustment Resistive Material: Cermet Mounting Type: Through Hole Termination Style: PC Pins Size / Dimension: Rectangular - 0.375" x 0.240" Face x 0.395" H (9.53mm x 6.10mm x 10.03mm)	Package: -	Stock2,430	0.5W, 1/2W	±10%	±100ppm/°C	25	Top Adjustment	Cermet	Through Hole	PC Pins	Rectangular - 0.375" x 0.240" Face x 0.395" H (9.53mm x 6.10mm x 10.03mm)
3299W-1-204	Bourns Inc.	TRIMMER 200K OHM 0.5W PC PIN Resistance: 200 kOhms Power (Watts): 0.5W, 1/2W Tolerance: ±10% Temperature Coefficient: ±100ppm/°C Number of Turns: 25 Adjustment Type: Top Adjustment Resistive Material: Cermet Mounting Type: Through Hole Termination Style: PC Pins Size / Dimension: Rectangular - 0.375" x 0.240" Face x 0.395" H (9.53mm x 6.10mm x 10.03mm)	Package: -	Stock2,358	0.5W, 1/2W	±10%	±100ppm/°C	25	Top Adjustment	Cermet	Through Hole	PC Pins	Rectangular - 0.375" x 0.240" Face x 0.395" H (9.53mm x 6.10mm x 10.03mm)
3299W-1-253	Bourns Inc.	TRIMMER 25K OHM 0.5W PC PIN Resistance: 25 kOhms Power (Watts): 0.5W, 1/2W Tolerance: ±10% Temperature Coefficient: ±100ppm/°C Number of Turns: 25 Adjustment Type: Top Adjustment Resistive Material: Cermet Mounting Type: Through Hole Termination Style: PC Pins Size / Dimension: Rectangular - 0.375" x 0.240" Face x 0.395" H (9.53mm x 6.10mm x 10.03mm)	Package: -	Stock2,052	0.5W, 1/2W	±10%	±100ppm/°C	25	Top Adjustment	Cermet	Through Hole	PC Pins	Rectangular - 0.375" x 0.240" Face x 0.395" H (9.53mm x 6.10mm x 10.03mm)