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V47RA16 Schematic ( PDF Datasheet ) - Littelfuse

Teilenummer V47RA16
Beschreibung RA Varistor Series
Hersteller Littelfuse
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Gesamt 8 Seiten
V47RA16 Datasheet, Funktion
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Varistor Products
Low Profile
RA Varistor Series
The RA Series transient surge suppressors are varistors (MOVs)
supplied in a low-profile box that features a precise seating plane to
increase mechanical stability for secure circuit-board mounting. This
feature makes these devices suitable for industrial applications critical
to vibration. Their construction permits operation up to 125oC (ambient)
without derating.
The RA series are available in voltage ratings up to 275V VM(AC)RMS,
and energy levels up to 140J. These varistors are used in automotive,
motor-control, telecommunication, and military applications.
See RA Series Device Ratings and Specifications table for part number
and brand information.
Features
• Low Profile Outline with Precise Seating Plane
• No Derating up to 125oC Ambient
• Wide Operating Voltage Range
VM(AC)RMS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4V to 275V
VM(DC). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5.5V to 369V
• High Energy Absorption Capability W TM . . . . . . . . . . . . . up to 140J
• 3 Model Sizes Available . . . . . . . . . RA8, RA16, and RA22
• In-Line Leads
AGENCY APPROVALS: Recognized under the components program of
Underwriters Laboratories. Certified by CSA.
AGENCY FILE NUMBERS: UL E75961, E56529, E135010;
CSA LR91788.
®
®
2
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V47RA16 Datasheet, Funktion
www.DataSheet4U.net
Varistor Products
Low Profile
RA Varistor Series
Pulse Rating Curves (Continued)
200
1
100
50 10
102
20
103
10
5
2 101401506
V8RA8 - V12RA8
2
1 INDEFINITE
0.5
0.2
20
100 1,000
IMPULSE DURATION ( µs)
10,000
FIGURE 9. SURGE CURRENT RATING CURVES FOR
V8RA8 - V12RA8
500
1
200
100 10
102
50
103
20
10
5
2
2 INDEFINITE
1
0.5
101401506
V18RA8 - V68RA8
0.2
20
100 1,000
IMPULSE DURATION ( µs)
10,000
FIGURE 10. SURGE CURRENT RATING CURVES FOR
V18RA8 - V68RA8
2,000
1,000
500
200
100
1
2
10
102
50
V82RA8 - V430RA8
101301401506
20
10
5 INDEFINITE
2
1
20 100
1,000
IMPULSE DURATION ( µs)
10,000
FIGURE 11. SURGE CURRENT RATING CURVES FOR
V82RA8 - V430RA8
1,000
500
2
10
200 102
100
50
1
101301401506
V18RA16 - V68RA16
20
10
5 INDEFINITE
2
1
20 100
1,000
10,000
IMPULSE DURATION ( µs)
FIGURE 12. SURGE CURRENT RATING CURVES FOR
V18RA16 - V68RA16
NOTE: If pulse ratings are exceeded, a shift of VN(DC) (at specified current) of more than ±10% could result.This type of shift, which normally results in a decrease of VN(DC),
may result in the device not meeting the original published specifications, but it does not prevent the device from continuing to function, and to provide ample protection.
142
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