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

CA Speakers & Transducers

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

Results: 2.896

Applied Filters:

Manufacturer

Product

Type

Mounting Style

Frequency

Sound Pressure Level

Impedance

Power Rating

Shape

Termination Style

Minimum Operating Temperature

Maximum Operating Temperature

Diameter

Length

Width

Depth

Magnet Material

Cone Material

IP Rating

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 #

Speakers & Transducers 0.7W 6ohm 600Hz 15x11mm Wire Leads

CMS-151135-076L100
Same Sky
1: 2,29 €
658In Stock

Mfr. Part No.
CMS-151135-076L100

Mouser Part No
490-CMS151135076L100

Same Sky

Speakers & Transducers 0.7W 6ohm 600Hz 15x11mm Wire Leads

Learn More

Datasheet

658In Stock

2,29 €

1,77 €

1,47 €

1,39 €

View

Min.: 1
Mult.: 1

Speakers

Micro

Board Mount

900 Hz

92 dBA

6 Ohms

700 mW

Rectangular

Wire Leads

- 20 C

+ 70 C

15 mm

11 mm

3.5 mm

Neodymium Iron Boron (NdFeB)

Polyetheretherketone (PEEK)

IP67

Speakers & Transducers speaker, 93.5 mm square, 51 mm deep, paper, ferrite, 20 W, 8 ohm, 100 Hz, solder eyelets

GF1004H
Same Sky
1: 12,29 €
452In Stock

Mfr. Part No.
GF1004H

Mouser Part No
490-GF1004H

Same Sky

Speakers & Transducers speaker, 93.5 mm square, 51 mm deep, paper, ferrite, 20 W, 8 ohm, 100 Hz, solder eyelets

Datasheet

452In Stock

12,29 €

9,58 €

8,71 €

8,12 €

View

Min.: 1
Mult.: 1

Speakers

Electromagnetic

Frame Mount

100 Hz

90 dBA

8 Ohms

20 W

Round

Solder Eyelet

- 25 C

+ 70 C

93.5 mm

102 mm

51 mm

Ferrite

Paper

Speakers & Transducers 5W 4 OHM 84DB 150HZ N50 Mini Speaker

AS04004MR-N50-R
PUI Audio
1: 7,29 €
191In Stock

Mfr. Part No.
AS04004MR-N50-R

Mouser Part No
665-AS04004MR-N50-R

PUI Audio

Speakers & Transducers 5W 4 OHM 84DB 150HZ N50 Mini Speaker

Learn More

Datasheet

191In Stock

7,29 €

5,67 €

4,58 €

4,32 €

View

Min.: 1
Mult.: 1

Speakers

Electromagnetic

Board Mount

150 Hz

84 dBA

4 Ohms

5 W

Round

Solder Eyelet

- 20 C

+ 60 C

40 mm

20.5 mm

Neodymium Iron Boron (NdFeB)

Paper

Speakers & Transducers EXCITER SLIM MOUNT 33MM 4 OHM 2W

ASX03304-SM-R
PUI Audio
1: 6,14 €
204In Stock

Mfr. Part No.
ASX03304-SM-R

Mouser Part No
665-ASX03304SMR

PUI Audio

Speakers & Transducers EXCITER SLIM MOUNT 33MM 4 OHM 2W

Learn More

Datasheet

204In Stock

6,14 €

5,09 €

4,69 €

3,96 €

View

Min.: 1
Mult.: 1

Speakers

Exciter

Adhesive Mount

420 Hz

80 dBA

4 Ohms

2 W

Round

Solder Eyelet

- 20 C

+ 60 C

33 mm

6.5 mm

Neodymium Iron Boron (NdFeB)

Speakers & Transducers SPEAKER .3W 8OHM 87DB 850HZ

SMS-1508-2-R
PUI Audio
1: 6,67 €
525In Stock

Mfr. Part No.
SMS-1508-2-R

Mouser Part No
665-SMS-1508-2R

PUI Audio

Speakers & Transducers SPEAKER .3W 8OHM 87DB 850HZ

Learn More

Datasheet

525In Stock

Cut Tape

6,67 €

5,26 €

4,80 €

4,53 €

4,15 €

Reel

3,86 €

MouseReel Available

Min.: 1
Mult.: 1

: 600

Speakers

Electromagnetic

Board Mount

850 Hz

87 dBA

8 Ohms

300 mW

Square

SMD/SMT

- 40 C

+ 85 C

15 mm

5 mm

Samarium Cobalt (SmCo)

Mylar

Speakers & Transducers speaker, 36 mm round, 6.2 mm deep, paper, Nd-Fe-B, 2 W, 8 ohm, 360 Hz, solder pads

CLS0361
Same Sky
1: 5,49 €
131In Stock
998On Order

Mfr. Part No.
CLS0361

Mouser Part No
490-CLS0361

Same Sky

Speakers & Transducers speaker, 36 mm round, 6.2 mm deep, paper, Nd-Fe-B, 2 W, 8 ohm, 360 Hz, solder pads

Datasheet

131In Stock

998On Order

5,49 €

4,25 €

3,91 €

3,59 €

View

Min.: 1
Mult.: 1

Speakers

Electromagnetic

Board Mount

450 Hz

88 dBA

8 Ohms

2 W

Round

Solder Pad

- 25 C

+ 60 C

36 mm

6 mm

Neodymium Iron Boron (NdFeB)

Paper

Speakers & Transducers 1.12DIA X 1.410MM SCREEN 1500 RES

BF-1991-000
Knowles
1: 2,57 €
113In Stock

Mfr. Part No.
BF-1991-000

Mouser Part No
721-BF-1991-000

Knowles

Speakers & Transducers 1.12DIA X 1.410MM SCREEN 1500 RES

Datasheet

113In Stock

2,57 €

1,87 €

1,66 €

1,59 €

View

Min.: 1
Mult.: 1

Dampers

Acoustic

1.5 kOhms

Round

1.12 mm

1.41 mm

Speakers & Transducers 1.78DIA X 1.65MM SCREEN 330 RES

BF-3034-000
Knowles
1: 2,83 €
69In Stock

Mfr. Part No.
BF-3034-000

Mouser Part No
721-BF-3034-000

Knowles

Speakers & Transducers 1.78DIA X 1.65MM SCREEN 330 RES

Datasheet

69In Stock

2,83 €

2,06 €

1,82 €

1,69 €

View

Min.: 1
Mult.: 1

Dampers

Acoustic

330 Ohms

1.78 mm

1.65 mm

Speakers & Transducers Balanced Armature Speaker

SWFK-31736-000
Knowles
1: 53,48 €
59In Stock

Mfr. Part No.
SWFK-31736-000

Mouser Part No
721-SWFK31736000

Knowles

Speakers & Transducers Balanced Armature Speaker

Datasheet

59In Stock

53,48 €

40,98 €

37,37 €

35,89 €

Min.: 1
Mult.: 1

Receivers

Balanced Armature

Panel Mount

7.6 kHz

114 dBA

7 Ohms

Rectangular

Solder Pad

- 17 C

+ 63 C

3.86 mm

2.73 mm

5.03 mm

Speakers & Transducers 15x11x3mm .7W IP67 6ohm 600Hz SolderPad

CMS-15113-076SP-67
Same Sky
1: 2,31 €
577In Stock

Mfr. Part No.
CMS-15113-076SP-67

Mouser Part No
490-CMS-15113076SP67

Same Sky

Speakers & Transducers 15x11x3mm .7W IP67 6ohm 600Hz SolderPad

Learn More

Datasheet

577In Stock

2,31 €

1,79 €

1,62 €

1,51 €

View

Min.: 1
Mult.: 1

Speakers

Micro

Board Mount

900 Hz

92 dBA

6 Ohms

700 mW

Rectangular

Solder Pad

- 20 C

+ 70 C

15 mm

11 mm

3 mm

Neodymium Iron Boron (NdFeB)

Mylar

IP67

Speakers & Transducers Speaker, 130 mm round, 50mm deep, paper, Ferrite, 20W, 4?, 110Hz, solder eylets

CSS-13050-204
Same Sky
1: 15,33 €
79In Stock

Mfr. Part No.
CSS-13050-204

Mouser Part No
490-CSS-13050-204

Same Sky

Speakers & Transducers Speaker, 130 mm round, 50mm deep, paper, Ferrite, 20W, 4?, 110Hz, solder eylets

Learn More

Datasheet

79In Stock

15,33 €

12,99 €

11,56 €

10,82 €

View

Min.: 1
Mult.: 1

Speakers

Electromagnetic

Panel Mount

130 Hz

103 dBA

4 Ohms

20 W

Round

Solder

- 20 C

+ 60 C

129.5 mm

50 mm

Ferrite

Paper

Speakers & Transducers speaker, 35 x 16 mm, 5 mm deep, cloth, Nd-Fe-B, 1 W, 8 ohm, 650 Hz, solder eyelets

GC0351M
Same Sky
1: 3,47 €
1.620In Stock

Mfr. Part No.
GC0351M

Mouser Part No
490-GC0351M

Same Sky

Speakers & Transducers speaker, 35 x 16 mm, 5 mm deep, cloth, Nd-Fe-B, 1 W, 8 ohm, 650 Hz, solder eyelets

Learn More

Datasheet

1.620In Stock

3,47 €

2,95 €

2,83 €

2,81 €

2,63 €

Min.: 1
Mult.: 1

Speakers

Micro

Frame Mount

650 Hz

81 dBA

8 Ohms

500 mW

Oval

Solder Pad

- 25 C

+ 60 C

16 mm

35 mm

5 mm

Neodymium Iron Boron (NdFeB)

Cloth

Speakers & Transducers IEC SPKR ALARM 95DB GENERAL

SBS12M1PC
Mallory Sonalert
1: 32,79 €
489In Stock

Mfr. Part No.
SBS12M1PC

Mouser Part No
539-SBS12M1PC

Mallory Sonalert

Speakers & Transducers IEC SPKR ALARM 95DB GENERAL

Learn More

Datasheet

489In Stock

32,79 €

Min.: 1
Mult.: 1

Speakers

Electromagnetic

PCB Mount

4 kHz

105 dBA

Round

Solder Pin

- 30 C

+ 65 C

44.45 mm

15 mm

Speakers & Transducers 5VP-P 80MA

SMT-0824-SW-5V-R
PUI Audio
1: 3,38 €
490In Stock

Mfr. Part No.
SMT-0824-SW-5V-R

Mouser Part No
665-SMT0824SW5VR

PUI Audio

Speakers & Transducers 5VP-P 80MA

Learn More

Datasheet

490In Stock

Cut Tape

3,38 €

2,67 €

2,43 €

2,26 €

Reel

1,89 €

View

MouseReel Available

Min.: 1
Mult.: 1

: 600

Transducers

Electromagnetic

Board Mount

2.4 kHz

80 dBA

30 Ohms

Square

Gullwing Lead

- 40 C

+ 85 C

8.5 mm

5.5 mm

Speakers & Transducers 15x11x3mm .7W IP67 8ohm 700Hz Spring

CMS-15113-078S-67
Same Sky
1: 2,36 €
698In Stock

Mfr. Part No.
CMS-15113-078S-67

Mouser Part No
490-CMS-15113-078S67

Same Sky

Speakers & Transducers 15x11x3mm .7W IP67 8ohm 700Hz Spring

Learn More

Datasheet

698In Stock

2,36 €

1,82 €

1,65 €

1,53 €

View

Min.: 1
Mult.: 1

Speakers

Micro

Board Mount

1 kHz

91 dBA

8 Ohms

700 mW

Rectangular

Spring Contact

- 20 C

+ 70 C

15 mm

11 mm

3 mm

Neodymium Iron Boron (NdFeB)

Polyetheretherketone (PEEK)

IP67

Speakers & Transducers 0.7W 8ohm 700Hz 15x11mm Wire Leads

CMS-151125-078L100
Same Sky
1: 2,29 €
629In Stock

Mfr. Part No.
CMS-151125-078L100

Mouser Part No
490-CMS151125078L100

Same Sky

Speakers & Transducers 0.7W 8ohm 700Hz 15x11mm Wire Leads

Learn More

Datasheet

629In Stock

2,29 €

1,77 €

1,47 €

1,39 €

View

Min.: 1
Mult.: 1

Speakers

Micro

Board Mount

1 kHz

91 dBA

8 Ohms

700 mW

Rectangular

Wire Leads

- 20 C

+ 70 C

15 mm

11 mm

2.5 mm

Neodymium Iron Boron (NdFeB)

Polyetheretherketone (PEEK)

IP67

Speakers & Transducers RECEIVER

GU-32829-000
Knowles
1: 45,98 €
86In Stock

Mfr. Part No.
GU-32829-000

Mouser Part No
721-GU-32829-000

Knowles

Speakers & Transducers RECEIVER

Learn More

Datasheet

86In Stock

45,98 €

35,23 €

31,76 €

29,54 €

Min.: 1
Mult.: 1

Receivers

Balanced Armature

70 Hz to 9.9 kHz

113.5 dBA

17 Ohms

- 40 C

+ 63 C

7.87 mm

5.59 mm

Speakers & Transducers Balanced Armature Receiver

RAB-32037-000
Knowles
1: 15,90 €
86In Stock
100On Order

Mfr. Part No.
RAB-32037-000

Mouser Part No
721-RAB-32037-000

Knowles

Speakers & Transducers Balanced Armature Receiver

Learn More

Datasheet

86In Stock

100On Order

15,90 €

12,32 €

11,21 €

10,56 €

View

Min.: 1
Mult.: 1

Receivers

Balanced Armature

Panel Mount

6.2 kHz

101 dBA

124 Ohms

Rectangular

Solder Pad

0 C

+ 63 C

5.28 mm

2.96 mm

2.58 mm

Speakers & Transducers 13 mm, Round Frame, 0.2 W, 16 Ohm, Neodymium Magnet, PET Cone, Speaker

CDS-1328-16-SP
Same Sky
1: 2,12 €
841In Stock

Mfr. Part No.
CDS-1328-16-SP

Mouser Part No
179-CDS-1328-16-SP

Same Sky

Speakers & Transducers 13 mm, Round Frame, 0.2 W, 16 Ohm, Neodymium Magnet, PET Cone, Speaker

Learn More

Datasheet

841In Stock

2,12 €

1,64 €

1,48 €

1,38 €

View

Min.: 1
Mult.: 1

Speakers

Electromagnetic

Board Mount

1.1 kHz

85 dBA

16 Ohms

200 mW

Round

Solder Pad

- 20 C

+ 60 C

13 mm

Neodymium Iron Boron (NdFeB)

Polyethylene Terephthalate (PET)

Speakers & Transducers speaker 30mm round 1W 8ohm 550Hz

CLS0301
Same Sky
1: 3,84 €
795In Stock

Mfr. Part No.
CLS0301

Mouser Part No
490-CLS0301

Same Sky

Speakers & Transducers speaker 30mm round 1W 8ohm 550Hz

Datasheet

795In Stock

3,84 €

2,98 €

2,70 €

2,50 €

View

Min.: 1
Mult.: 1

Speakers

Electromagnetic

Board Mount

550 Hz

86 dBA

8 Ohms

1 W

Round

Solder Pad

- 25 C

+ 70 C

30 mm

3 mm

Neodymium Iron Boron (NdFeB)

Paper

Speakers & Transducers 0.7W 6ohm 550Hz 15x11mm Solder Pads

CMS-151125-076SP
Same Sky
1: 2,16 €
687In Stock

Mfr. Part No.
CMS-151125-076SP

Mouser Part No
490-CMS-151125-076SP

Same Sky

Speakers & Transducers 0.7W 6ohm 550Hz 15x11mm Solder Pads

Learn More

Datasheet

687In Stock

2,16 €

1,45 €

1,40 €

1,30 €

View

Min.: 1
Mult.: 1

Speakers

Micro

Board Mount

850 Hz

92.5 dBA

6 Ohms

700 mW

Rectangular

Solder Pad

- 20 C

+ 70 C

15 mm

11 mm

2.5 mm

Neodymium Iron Boron (NdFeB)

Polyetheretherketone (PEEK)

IP67

Speakers & Transducers Speaker, 102 x 102mm Square, 46mm deep, paper, Ferrite, 30W, 4?, 110Hz, solder eylets

CSS-10246-304
Same Sky
1: 13,67 €
69In Stock

Mfr. Part No.
CSS-10246-304

Mouser Part No
490-CSS-10246-304

Same Sky

Speakers & Transducers Speaker, 102 x 102mm Square, 46mm deep, paper, Ferrite, 30W, 4?, 110Hz, solder eylets

Learn More

Datasheet

69In Stock

13,67 €

11,54 €

10,50 €

9,88 €

8,84 €

Min.: 1
Mult.: 1

Speakers

Electromagnetic

Panel Mount

110 Hz

97 dBA

4 Ohms

10 W

Round

Solder

- 20 C

+ 60 C

93 mm

102 mm

46 mm

Ferrite

Paper, Polyurethane (PU)

Speakers & Transducers 34MM DIA. FEEDBACK

AB3432F
PUI Audio
1: 1,55 €
993In Stock

Mfr. Part No.
AB3432F

Mouser Part No
665-AB3432F

PUI Audio

Speakers & Transducers 34MM DIA. FEEDBACK

Datasheet

993In Stock

1,55 €

1,20 €

1,08 €

0,972 €

View

Min.: 1
Mult.: 1

Benders

Piezoelectric

Flush Mount

3.2 kHz

150 Ohms

Round

SMD/SMT

- 20 C

+ 60 C

34.6 mm

0.63 mm

Speakers & Transducers SMD TRANSDUCER 5VP-P 60MA

SMT-0824-TW-5V-R
PUI Audio
1: 3,46 €
600In Stock

Mfr. Part No.
SMT-0824-TW-5V-R

Mouser Part No
665-SMT0824TW5VR

PUI Audio

Speakers & Transducers SMD TRANSDUCER 5VP-P 60MA

Learn More

Datasheet

600In Stock

Cut Tape

3,46 €

2,73 €

2,49 €

2,31 €

Reel

1,89 €

View

MouseReel Available

Min.: 1
Mult.: 1

: 600

Transducers

Electromagnetic

Board Mount

2.4 kHz

80 dBA

30 Ohms

Square

Gullwing Lead

- 40 C

+ 85 C

8.5 mm

5.5 mm

Speakers & Transducers ULTRASONIC RECEIVER 30VRMS 2100PF

UR-1240K-TT-R
PUI Audio
1: 3,43 €
284In Stock

Mfr. Part No.
UR-1240K-TT-R

Mouser Part No
665-UR1240KTTR

PUI Audio

Speakers & Transducers ULTRASONIC RECEIVER 30VRMS 2100PF

Learn More

Datasheet

284In Stock

3,43 €

3,29 €

2,98 €

2,94 €

View

Min.: 1
Mult.: 1

Receivers

Ultrasonic

Through Hole

40 kHz

Solder Pin

12.8 mm

CA Speakers & Transducers

Customer Service Office

Company

Resources

Support

AATC
Adafruit
Amphenol
AMSECO
CCS
CHERRY
DB Unlimited
Honeywell
KEMET
Klein Tools
Knowles
M5Stack
Mallory Sonalert
Murata
Nuvoton
Omron
OSEPP Electronics
OTTO
Pro-Wave Electronics
PUI Audio
Same Sky
Soldered
SparkFun Electronics
Susumu
Taoglas
TDK
TE Connectivity
Tinkerforge
VCC
Visaton
Vishay
Weidmuller

Accessories
Audios
Bender
Benders
Components & Parts
Dampers
Earphones
Hardware
Magnetic Transducer
Miniature Speakers
Piezoelectric Benders
Piezoelectric Transducer
Receiver
Receivers
Speaker
Speakers
Strobe Speakers
Transducers
Transmitters
Tweeters

Accessory, Support
Acoustic
Adapter
Adapter Cable
Amplifier
Balanced Armature
Bluetooth Speaker
Buzzer Speakers
Cover
Crossover
Dynamic
Dynamic Receiver
Electromagnetic
Electromechanical
Enclosed
Exciter
Externally-driven Magnetic Transducer
Externally-driven Piezoelectric Transducer
Full Bridge Transducer
Horn

Adhesive
Adhesive Mount
Board Mount
Cabinet Mount
Ceiling Mount
Chassis Mount
Flange Mount
Floor Mount
Flush Mount
Frame Mount
Free Hanging
Panel Mount
PCB Mount
Pin
Shelf Mount
SMD/SMT
Through Hole
Wall Mount
Wire Lead
Wire Leads

0 Hz to 12 Hz
0 Hz to 20 kHz
0 Hz to 6 GHz
0 Hz to 6 kHz
20 Hz to 20 kHz
20 Hz to 7 kHz
25 Hz
25 Hz to 30 kHz
27 Hz to 350 Hz
28 Hz to 25 kHz
28 Hz to 40 kHz
29 Hz
29 Hz to 25 kHz
29 Hz to 30 kHz
30 Hz
30 Hz to 20 kHz
30 Hz to 22 kHz
30 Hz to 35 kHz
30 Hz, 34 Hz, 35 Hz
31 Hz

61 dBA
65 dB
67 dBA
70 dB
70 dBA
71 dB
71 dBA
72 dBA
73 dBA
74 dBA
75 dB
75 dBA
76 dB
76 dBA
76.5 dBA
77 dB, 94 dB
77 dBA
78 dB
78 dBA
78 dBA, 93 dBA

500 mOhms
2 Ohms
2 Ohms, 4 Ohms, 8 Ohms
2.5 Ohms
3.6 Ohms
4 Ohms
4.2 Ohms
5.5 Ohms
6 Ohms
6.5 Ohms
7 Ohms
7.1 Ohms
7.2 Ohms
8 Ohms
9 Ohms
9.2 Ohms
9.6 Ohms
10.2 Ohms
12 Ohms
13.3 Ohms

3 mW
5 mW
10 mW
15 mW
20 mW
25 mW
30 mW
40 mW
55 mW
80 mW
100 mW
150 mW
200 mW
250 mW
250 mW (1/4 W)
300 mW
400 mW
500 mW
500 mW (1/2 W)
600 mW

Cable
Connector
Gullwing Lead
PCB Mount
Pin
Quick Connect
Screw
Screw Terminal
SMD/SMT
Snap In
Solder
Solder Eyelet
Solder Lug
Solder Pad
Solder Pads
Solder Pin
Solder Tab
Spring Contact
Terminal Block
Through Hole

+ 40 C
+ 45 C
+ 49 C
+ 50 C
+ 55 C
+ 60 C
+ 63 C
+ 65 C
+ 66 C
+ 70 C
+ 71 C
+ 75 C
+ 80 C
+ 85 C
+ 90 C
+ 100 C
+ 105 C
+ 110 C
+ 120 C
+ 151 C

1.12 mm
1.37 mm
1.78 mm
2.08 mm
5 mm
6.6 mm
7 mm
8.9 mm
9 mm
9.2 mm
9.3 mm
9.6 mm
9.75 mm
9.9 mm
10 mm
10.5 mm
11 mm
12 mm
12.4 mm
12.5 mm

1.41 mm
1.57 mm
1.65 mm
2.44 mm
3.2 mm
3.74 mm
3.86 mm
4 mm
5 mm
5.09 mm
5.15 mm
5.16 mm
5.17 mm
5.18 mm
5.19 mm
5.28 mm
5.3 mm
5.4 mm
5.5 mm
5.59 mm

2 mm
2.73 mm
2.8 mm
2.96 mm
3.15 mm
3.2 mm
3.28 mm
3.46 mm
3.51 mm
3.53 mm
3.54 mm
3.55 mm
4 mm
4.09 mm
4.29 mm
4.3 mm
4.31 mm
5 mm
5.2 mm
5.4 mm

0.1 mm
0.12 mm
0.18 mm
0.2 mm
0.21 mm
0.22 mm
0.23 mm
0.26 mm
0.28 mm
0.4 mm
0.41 mm
0.42 mm
0.43 mm
0.49 mm
0.5 mm
0.51 mm
0.53 mm
0.56 mm
0.63 mm
0.7 mm

Acrylonitrile Butadiene Styrene (ABS)
Aluminum
Aluminum, Cloth
Aluminum, Polyurethane (PU)
Aluminum, Rubber
Aluminum, Sponge
Anodized Aluminum
Ceramic
Cloth
Cloth, Paper
Composite
Foam
Foam, Paper
Kapton
Kynar
Liquid Crystal Polymer (LCP)
Metal
Mylar
Paper
Paper, Polyurethane (PU)