Produkte > VSA

BezeichnungHerstellerBeschreibungVerfügbarkeitPreis ohne MwSt
VSAAMSECOAmseco Amplifier unit
Produkt ist nicht verfügbar
VSA-APFLIRDescription: VIDEOSCOPE ACCESSORY KIT WITH AC
Produkt ist nicht verfügbar
VSA-APExtechThermal Imaging Cameras Videoscope Accessory Kit w/ Accessory Case (Fits in VS70 Hard Case)
Produkt ist nicht verfügbar
VSA001ifm efector, inc.Description: VIBRATION ACCELEROMETER, 1 AXIS,
Packaging: Box
Package / Case: Cylinder, Threaded
Output Type: Analog
Mounting Type: Panel Mount
Operating Temperature: -30°C ~ 125°C
Sensor Type: Acceleration
Power - Rated: 7.2V ~ 10.8V / 15mA
Termination: Connector
Sensing Range: 1Hz ~ 6kHz
Part Status: Active
auf Bestellung 10 Stücke:
Lieferzeit 21-28 Tag (e)
1+557.7 EUR
VSA004ifm efector, inc.Description: SENSOR, VIBRATION, DETECTION UP
Packaging: Box
Package / Case: Module
Output Type: Analog
Mounting Type: Chassis Mount
Operating Temperature: -20°C ~ 80°C
Sensor Type: Acceleration
Power - Rated: 7.2V ~ 10.8V / 15mA
Termination: Cable/Wire Leads
Sensing Range: 1Hz ~ 10kHz
Part Status: Active
auf Bestellung 2 Stücke:
Lieferzeit 21-28 Tag (e)
1+728.75 EUR
VSA005ifm efector, inc.Description: VIBRATION ACCELEROMETER, 1 AXIS,
Packaging: Box
Package / Case: Module
Output Type: Analog
Mounting Type: Chassis Mount
Operating Temperature: -20°C ~ 80°C
Sensor Type: Acceleration
Power - Rated: 7.2V ~ 10.8V / 15mA
Termination: Cable/Wire Leads
Sensing Range: 1Hz ~ 10kHz
Part Status: Active
auf Bestellung 2 Stücke:
Lieferzeit 21-28 Tag (e)
1+840.94 EUR
VSA008ifm efector, inc.Description: VIBRATION ACCELEROMETER, 1 AXIS,
Packaging: Box
Package / Case: Module
Output Type: Analog
Mounting Type: Chassis Mount
Operating Temperature: -30°C ~ 80°C
Sensor Type: Acceleration
Power - Rated: 7.2V ~ 10.8V / 15mA
Termination: Cable with Connector
Sensing Range: 1Hz ~ 10kHz
Part Status: Active
auf Bestellung 2 Stücke:
Lieferzeit 21-28 Tag (e)
1+726.49 EUR
VSA108Cinch Connectivity SolutionsDescription: CONN ADAPT PLUG-PLUG SMA
Packaging: Bulk
Convert From (Adapter End): SMA Plug, Male Pin
Convert To (Adapter End): SMA Plug, Male Pin
Fastening Type: Threaded, Threaded
Adapter Series: SMA to SMA
Adapter Type: Plug to Plug
Center Gender: Male to Male
Conversion Type: Same Series
Produkt ist nicht verfügbar
VSA108Vitelec / Cinch Connectivity SolutionsRF Connectors / Coaxial Connectors SMA Plug - Plug Adaptor
Produkt ist nicht verfügbar
VSA2-1-WFLIR SystemsCameras & Camera Modules Wireless 2way ArtCam W/2mProbe,Long Focus
Produkt ist nicht verfügbar
VSA2-1M-WFLIR SystemsCameras & Camera Modules Wireless 2way ArtCam W/1mProbe,ShortFocus
Produkt ist nicht verfügbar
VSA2-2-WFLIR SystemsCameras & Camera Modules Wireless 2way ArtCam W/2mProbe,Long Focus
Produkt ist nicht verfügbar
VSA2-2M-WFLIR SystemsCameras & Camera Modules Wireless 2/6mmArtCam W/1mProbe,ShortFocus
Produkt ist nicht verfügbar
VSA24-12S0R6Kaga Electronics USADescription: DC DC CONVERTER 12V 6.5W
Packaging: Tray
Package / Case: 5-SIP Module
Size / Dimension: 1.00" L x 0.28" W x 0.94" H (25.4mm x 7.0mm x 24.0mm)
Mounting Type: Through Hole
Type: Non-Isolated PoL Module
Operating Temperature: -20°C ~ 70°C
Applications: ITE (Commercial)
Voltage - Input (Max): 36V
Efficiency: 88%
Current - Output (Max): 550mA
Voltage - Input (Min): 18V
Voltage - Output 1: 12V
Power (Watts): 6.5 W
Number of Outputs: 1
Produkt ist nicht verfügbar
VSA24-3.3S1R2Volgen America/Kaga Electronics USADescription: CONV DC/DC 3.3V OUT 1.2A SIP
Produkt ist nicht verfügbar
VSA4-1-WFLIR SystemsCameras & Camera Modules Wireless 4way ArtCam W/1mProbe,Long Focus
Produkt ist nicht verfügbar
VSA4-1M-WFLIR SystemsCameras & Camera Modules Wireless 4way ArtCam W/1mProbe,ShortFocus
Produkt ist nicht verfügbar
VSAB0530-6R8MCODACADescription: AUTOMOTIVE MOLDED POWER INDUCTOR
Tolerance: ±20%
Packaging: Tape & Reel (TR)
Package / Case: Nonstandard
Size / Dimension: 0.215" L x 0.205" W (5.45mm x 5.20mm)
Mounting Type: Surface Mount
Shielding: Shielded
Type: Molded
Operating Temperature: -55°C ~ 155°C
DC Resistance (DCR): 90mOhm Max
Ratings: AEC-Q200
Current - Saturation (Isat): 3.1A
Material - Core: Alloy Powder
Inductance Frequency - Test: 100 kHz
Height - Seated (Max): 0.118" (3.00mm)
Part Status: Active
Inductance: 6.8 µH
Current Rating (Amps): 3.3 A
Produkt ist nicht verfügbar
VSAB0530-6R8MCODACADescription: AUTOMOTIVE MOLDED POWER INDUCTOR
Tolerance: ±20%
Packaging: Cut Tape (CT)
Package / Case: Nonstandard
Size / Dimension: 0.215" L x 0.205" W (5.45mm x 5.20mm)
Mounting Type: Surface Mount
Shielding: Shielded
Type: Molded
Operating Temperature: -55°C ~ 155°C
DC Resistance (DCR): 90mOhm Max
Ratings: AEC-Q200
Current - Saturation (Isat): 3.1A
Material - Core: Alloy Powder
Inductance Frequency - Test: 100 kHz
Height - Seated (Max): 0.118" (3.00mm)
Part Status: Active
Inductance: 6.8 µH
Current Rating (Amps): 3.3 A
auf Bestellung 730 Stücke:
Lieferzeit 21-28 Tag (e)
11+2.39 EUR
25+ 2.21 EUR
50+ 1.84 EUR
100+ 1.73 EUR
250+ 1.54 EUR
500+ 1.32 EUR
Mindestbestellmenge: 11
VSAB1365-220MCODACADescription: AUTOMOTIVE MOLDED POWER INDUCTOR
Tolerance: ±20%
Packaging: Tape & Reel (TR)
Package / Case: Nonstandard
Size / Dimension: 0.530" L x 0.496" W (13.45mm x 12.60mm)
Mounting Type: Surface Mount
Shielding: Shielded
Type: Molded
Operating Temperature: -55°C ~ 155°C
DC Resistance (DCR): 39.5mOhm Max
Ratings: AEC-Q200
Current - Saturation (Isat): 6.4A
Material - Core: Alloy Powder
Inductance Frequency - Test: 100 kHz
Height - Seated (Max): 0.248" (6.30mm)
Part Status: Active
Inductance: 22 µH
Current Rating (Amps): 7 A
Produkt ist nicht verfügbar
VSAB1365-220MCODACADescription: AUTOMOTIVE MOLDED POWER INDUCTOR
Tolerance: ±20%
Packaging: Cut Tape (CT)
Package / Case: Nonstandard
Size / Dimension: 0.530" L x 0.496" W (13.45mm x 12.60mm)
Mounting Type: Surface Mount
Shielding: Shielded
Type: Molded
Operating Temperature: -55°C ~ 155°C
DC Resistance (DCR): 39.5mOhm Max
Ratings: AEC-Q200
Current - Saturation (Isat): 6.4A
Material - Core: Alloy Powder
Inductance Frequency - Test: 100 kHz
Height - Seated (Max): 0.248" (6.30mm)
Part Status: Active
Inductance: 22 µH
Current Rating (Amps): 7 A
auf Bestellung 400 Stücke:
Lieferzeit 21-28 Tag (e)
6+4.5 EUR
10+ 4.12 EUR
25+ 3.52 EUR
50+ 3.15 EUR
100+ 2.7 EUR
Mindestbestellmenge: 6
VSAB1770-220MCODACADescription: AUTOMOTIVE MOLDED POWER INDUCTOR
Tolerance: ±20%
Packaging: Cut Tape (CT)
Package / Case: Nonstandard
Size / Dimension: 0.691" L x 0.667" W (17.55mm x 16.95mm)
Mounting Type: Surface Mount
Shielding: Shielded
Type: Molded
Operating Temperature: -55°C ~ 155°C
DC Resistance (DCR): 27mOhm Max
Ratings: AEC-Q200
Current - Saturation (Isat): 9A
Material - Core: Alloy Powder
Inductance Frequency - Test: 100 kHz
Height - Seated (Max): 0.283" (7.20mm)
Inductance: 22 µH
Current Rating (Amps): 8.5 A
auf Bestellung 150 Stücke:
Lieferzeit 21-28 Tag (e)
4+8.48 EUR
10+ 7.7 EUR
25+ 6.47 EUR
50+ 5.55 EUR
Mindestbestellmenge: 4
VSAB1770-220MCODACADescription: AUTOMOTIVE MOLDED POWER INDUCTOR
Tolerance: ±20%
Packaging: Tape & Reel (TR)
Package / Case: Nonstandard
Size / Dimension: 0.691" L x 0.667" W (17.55mm x 16.95mm)
Mounting Type: Surface Mount
Shielding: Shielded
Type: Molded
Operating Temperature: -55°C ~ 155°C
DC Resistance (DCR): 27mOhm Max
Ratings: AEC-Q200
Current - Saturation (Isat): 9A
Material - Core: Alloy Powder
Inductance Frequency - Test: 100 kHz
Height - Seated (Max): 0.283" (7.20mm)
Inductance: 22 µH
Current Rating (Amps): 8.5 A
Produkt ist nicht verfügbar
VSAB1770-330MCODACADescription: AUTOMOTIVE MOLDED POWER INDUCTOR
Packaging: Cut Tape (CT)
Tolerance: ±20%
Package / Case: Nonstandard
Size / Dimension: 0.691" L x 0.667" W (17.55mm x 16.95mm)
Mounting Type: Surface Mount
Shielding: Shielded
Type: Molded
Operating Temperature: -55°C ~ 155°C
DC Resistance (DCR): 55mOhm Max
Ratings: AEC-Q200
Current - Saturation (Isat): 7A
Material - Core: Alloy Powder
Inductance Frequency - Test: 100 kHz
Height - Seated (Max): 0.283" (7.20mm)
Inductance: 33 µH
Current Rating (Amps): 8 A
auf Bestellung 150 Stücke:
Lieferzeit 21-28 Tag (e)
4+8.48 EUR
10+ 7.7 EUR
25+ 6.47 EUR
50+ 5.55 EUR
Mindestbestellmenge: 4
VSAB1770-330MCODACADescription: AUTOMOTIVE MOLDED POWER INDUCTOR
Packaging: Tape & Reel (TR)
Tolerance: ±20%
Package / Case: Nonstandard
Size / Dimension: 0.691" L x 0.667" W (17.55mm x 16.95mm)
Mounting Type: Surface Mount
Shielding: Shielded
Type: Molded
Operating Temperature: -55°C ~ 155°C
DC Resistance (DCR): 55mOhm Max
Ratings: AEC-Q200
Current - Saturation (Isat): 7A
Material - Core: Alloy Powder
Inductance Frequency - Test: 100 kHz
Height - Seated (Max): 0.283" (7.20mm)
Inductance: 33 µH
Current Rating (Amps): 8 A
Produkt ist nicht verfügbar
VSAB1770-470MCODACADescription: AUTOMOTIVE MOLDED POWER INDUCTOR
Packaging: Cut Tape (CT)
Tolerance: ±20%
Package / Case: Nonstandard
Size / Dimension: 0.691" L x 0.667" W (17.55mm x 16.95mm)
Mounting Type: Surface Mount
Shielding: Shielded
Type: Molded
Operating Temperature: -55°C ~ 155°C
DC Resistance (DCR): 6.5mOhm Max
Ratings: AEC-Q200
Current - Saturation (Isat): 17.8A
Material - Core: Alloy Powder
Inductance Frequency - Test: 100 kHz
Height - Seated (Max): 0.283" (7.20mm)
Inductance: 47 µH
Current Rating (Amps): 6.8 A
auf Bestellung 136 Stücke:
Lieferzeit 21-28 Tag (e)
4+8.24 EUR
10+ 7.5 EUR
25+ 6.3 EUR
50+ 5.4 EUR
Mindestbestellmenge: 4
VSAB1770-470MCODACADescription: AUTOMOTIVE MOLDED POWER INDUCTOR
Packaging: Tape & Reel (TR)
Tolerance: ±20%
Package / Case: Nonstandard
Size / Dimension: 0.691" L x 0.667" W (17.55mm x 16.95mm)
Mounting Type: Surface Mount
Shielding: Shielded
Type: Molded
Operating Temperature: -55°C ~ 155°C
DC Resistance (DCR): 6.5mOhm Max
Ratings: AEC-Q200
Current - Saturation (Isat): 17.8A
Material - Core: Alloy Powder
Inductance Frequency - Test: 100 kHz
Height - Seated (Max): 0.283" (7.20mm)
Inductance: 47 µH
Current Rating (Amps): 6.8 A
Produkt ist nicht verfügbar
VSAB1770-560MCODACADescription: AUTOMOTIVE MOLDED POWER INDUCTOR
Packaging: Tape & Reel (TR)
Tolerance: ±20%
Package / Case: Nonstandard
Size / Dimension: 0.691" L x 0.667" W (17.55mm x 16.95mm)
Mounting Type: Surface Mount
Shielding: Shielded
Type: Molded
Operating Temperature: -55°C ~ 155°C
DC Resistance (DCR): 60mOhm Max
Ratings: AEC-Q200
Current - Saturation (Isat): 6.5A
Material - Core: Alloy Powder
Inductance Frequency - Test: 100 kHz
Height - Seated (Max): 0.283" (7.20mm)
Part Status: Active
Inductance: 56 µH
Current Rating (Amps): 6.5 A
Produkt ist nicht verfügbar
VSAB1770-560MCODACADescription: AUTOMOTIVE MOLDED POWER INDUCTOR
Packaging: Cut Tape (CT)
Tolerance: ±20%
Package / Case: Nonstandard
Size / Dimension: 0.691" L x 0.667" W (17.55mm x 16.95mm)
Mounting Type: Surface Mount
Shielding: Shielded
Type: Molded
Operating Temperature: -55°C ~ 155°C
DC Resistance (DCR): 60mOhm Max
Ratings: AEC-Q200
Current - Saturation (Isat): 6.5A
Material - Core: Alloy Powder
Inductance Frequency - Test: 100 kHz
Height - Seated (Max): 0.283" (7.20mm)
Part Status: Active
Inductance: 56 µH
Current Rating (Amps): 6.5 A
auf Bestellung 150 Stücke:
Lieferzeit 21-28 Tag (e)
3+9.78 EUR
10+ 8.95 EUR
25+ 8.14 EUR
50+ 6.84 EUR
Mindestbestellmenge: 3
VSAB1770-5R6MCODACADescription: AUTOMOTIVE MOLDED POWER INDUCTOR
Packaging: Tape & Reel (TR)
Tolerance: ±20%
Package / Case: Nonstandard
Size / Dimension: 0.691" L x 0.667" W (17.55mm x 16.95mm)
Mounting Type: Surface Mount
Shielding: Shielded
Type: Molded
Operating Temperature: -55°C ~ 155°C
DC Resistance (DCR): 6.5mOhm Max
Ratings: AEC-Q200
Current - Saturation (Isat): 17.8A
Material - Core: Alloy Powder
Inductance Frequency - Test: 100 kHz
Height - Seated (Max): 0.283" (7.20mm)
Part Status: Active
Inductance: 5.6 µH
Current Rating (Amps): 17 A
Produkt ist nicht verfügbar
VSAB1770-5R6MCODACADescription: AUTOMOTIVE MOLDED POWER INDUCTOR
Packaging: Cut Tape (CT)
Tolerance: ±20%
Package / Case: Nonstandard
Size / Dimension: 0.691" L x 0.667" W (17.55mm x 16.95mm)
Mounting Type: Surface Mount
Shielding: Shielded
Type: Molded
Operating Temperature: -55°C ~ 155°C
DC Resistance (DCR): 6.5mOhm Max
Ratings: AEC-Q200
Current - Saturation (Isat): 17.8A
Material - Core: Alloy Powder
Inductance Frequency - Test: 100 kHz
Height - Seated (Max): 0.283" (7.20mm)
Part Status: Active
Inductance: 5.6 µH
Current Rating (Amps): 17 A
auf Bestellung 147 Stücke:
Lieferzeit 21-28 Tag (e)
3+9.78 EUR
10+ 8.95 EUR
25+ 8.14 EUR
50+ 6.84 EUR
Mindestbestellmenge: 3
VSAB1770-680MCODACADescription: AUTOMOTIVE MOLDED POWER INDUCTOR
Packaging: Cut Tape (CT)
Tolerance: ±20%
Package / Case: Nonstandard
Size / Dimension: 0.691" L x 0.667" W (17.55mm x 16.95mm)
Mounting Type: Surface Mount
Shielding: Shielded
Type: Molded
Operating Temperature: -55°C ~ 155°C
DC Resistance (DCR): 85mOhm Max
Ratings: AEC-Q200
Current - Saturation (Isat): 5.5A
Material - Core: Alloy Powder
Inductance Frequency - Test: 100 kHz
Height - Seated (Max): 0.283" (7.20mm)
Part Status: Active
Current Rating (Amps): 5.5 A
Inductance: 68 µH
auf Bestellung 150 Stücke:
Lieferzeit 21-28 Tag (e)
3+9.78 EUR
10+ 8.95 EUR
25+ 8.14 EUR
50+ 6.84 EUR
Mindestbestellmenge: 3
VSAB1770-680MCODACADescription: AUTOMOTIVE MOLDED POWER INDUCTOR
Packaging: Tape & Reel (TR)
Tolerance: ±20%
Package / Case: Nonstandard
Size / Dimension: 0.691" L x 0.667" W (17.55mm x 16.95mm)
Mounting Type: Surface Mount
Shielding: Shielded
Type: Molded
Operating Temperature: -55°C ~ 155°C
DC Resistance (DCR): 85mOhm Max
Ratings: AEC-Q200
Current - Saturation (Isat): 5.5A
Material - Core: Alloy Powder
Inductance Frequency - Test: 100 kHz
Height - Seated (Max): 0.283" (7.20mm)
Part Status: Active
Current Rating (Amps): 5.5 A
Inductance: 68 µH
Produkt ist nicht verfügbar
VSAB1770-6R8MCODACADescription: AUTOMOTIVE MOLDED POWER INDUCTOR
Packaging: Cut Tape (CT)
Tolerance: ±20%
Package / Case: Nonstandard
Size / Dimension: 0.691" L x 0.667" W (17.55mm x 16.95mm)
Mounting Type: Surface Mount
Shielding: Shielded
Type: Molded
Operating Temperature: -55°C ~ 155°C
DC Resistance (DCR): 7.8mOhm Max
Ratings: AEC-Q200
Current - Saturation (Isat): 16A
Material - Core: Alloy Powder
Inductance Frequency - Test: 100 kHz
Height - Seated (Max): 0.283" (7.20mm)
Part Status: Active
Current Rating (Amps): 15.5 A
Inductance: 6.8 µH
auf Bestellung 150 Stücke:
Lieferzeit 21-28 Tag (e)
3+9.78 EUR
10+ 8.95 EUR
25+ 8.14 EUR
50+ 6.84 EUR
Mindestbestellmenge: 3
VSAB1770-6R8MCODACADescription: AUTOMOTIVE MOLDED POWER INDUCTOR
Packaging: Tape & Reel (TR)
Tolerance: ±20%
Package / Case: Nonstandard
Size / Dimension: 0.691" L x 0.667" W (17.55mm x 16.95mm)
Mounting Type: Surface Mount
Shielding: Shielded
Type: Molded
Operating Temperature: -55°C ~ 155°C
DC Resistance (DCR): 7.8mOhm Max
Ratings: AEC-Q200
Current - Saturation (Isat): 16A
Material - Core: Alloy Powder
Inductance Frequency - Test: 100 kHz
Height - Seated (Max): 0.283" (7.20mm)
Part Status: Active
Current Rating (Amps): 15.5 A
Inductance: 6.8 µH
Produkt ist nicht verfügbar
VSAB1770-820MCODACADescription: AUTOMOTIVE MOLDED POWER INDUCTOR
Packaging: Cut Tape (CT)
Tolerance: ±20%
Package / Case: Nonstandard
Size / Dimension: 0.691" L x 0.667" W (17.55mm x 16.95mm)
Mounting Type: Surface Mount
Shielding: Shielded
Type: Molded
Operating Temperature: -55°C ~ 155°C
DC Resistance (DCR): 105mOhm Max
Ratings: AEC-Q200
Current - Saturation (Isat): 4.7A
Material - Core: Alloy Powder
Inductance Frequency - Test: 100 kHz
Height - Seated (Max): 0.283" (7.20mm)
Part Status: Active
Inductance: 82 µH
Current Rating (Amps): 4.7 A
auf Bestellung 145 Stücke:
Lieferzeit 21-28 Tag (e)
4+8.16 EUR
10+ 6.85 EUR
25+ 6.25 EUR
50+ 5.36 EUR
Mindestbestellmenge: 4
VSAB1770-820MCODACADescription: AUTOMOTIVE MOLDED POWER INDUCTOR
Packaging: Tape & Reel (TR)
Tolerance: ±20%
Package / Case: Nonstandard
Size / Dimension: 0.691" L x 0.667" W (17.55mm x 16.95mm)
Mounting Type: Surface Mount
Shielding: Shielded
Type: Molded
Operating Temperature: -55°C ~ 155°C
DC Resistance (DCR): 105mOhm Max
Ratings: AEC-Q200
Current - Saturation (Isat): 4.7A
Material - Core: Alloy Powder
Inductance Frequency - Test: 100 kHz
Height - Seated (Max): 0.283" (7.20mm)
Part Status: Active
Inductance: 82 µH
Current Rating (Amps): 4.7 A
Produkt ist nicht verfügbar
VSAB1770-8R2MCODACADescription: AUTOMOTIVE MOLDED POWER INDUCTOR
Packaging: Cut Tape (CT)
Tolerance: ±20%
Package / Case: Nonstandard
Size / Dimension: 0.691" L x 0.667" W (17.55mm x 16.95mm)
Mounting Type: Surface Mount
Shielding: Shielded
Type: Molded
Operating Temperature: -55°C ~ 155°C
DC Resistance (DCR): 60mOhm Max
Ratings: AEC-Q200
Current - Saturation (Isat): 6.5A
Material - Core: Alloy Powder
Inductance Frequency - Test: 100 kHz
Height - Seated (Max): 0.283" (7.20mm)
Part Status: Active
Inductance: 8.2 µH
Current Rating (Amps): 14.5 A
auf Bestellung 150 Stücke:
Lieferzeit 21-28 Tag (e)
4+8.16 EUR
10+ 6.85 EUR
25+ 6.25 EUR
50+ 5.36 EUR
Mindestbestellmenge: 4
VSAB1770-8R2MCODACADescription: AUTOMOTIVE MOLDED POWER INDUCTOR
Packaging: Tape & Reel (TR)
Tolerance: ±20%
Package / Case: Nonstandard
Size / Dimension: 0.691" L x 0.667" W (17.55mm x 16.95mm)
Mounting Type: Surface Mount
Shielding: Shielded
Type: Molded
Operating Temperature: -55°C ~ 155°C
DC Resistance (DCR): 60mOhm Max
Ratings: AEC-Q200
Current - Saturation (Isat): 6.5A
Material - Core: Alloy Powder
Inductance Frequency - Test: 100 kHz
Height - Seated (Max): 0.283" (7.20mm)
Part Status: Active
Inductance: 8.2 µH
Current Rating (Amps): 14.5 A
Produkt ist nicht verfügbar