V18RA8 Littelfuse Inc, V18RA8 Datasheet

VARISTOR LOW PROFILE 14V 0.8J RA

V18RA8

Manufacturer Part Number
V18RA8
Description
VARISTOR LOW PROFILE 14V 0.8J RA
Manufacturer
Littelfuse Inc
Series
RAr
Datasheet
1.V120RA8.pdf (8 pages)

Specifications of V18RA8

Varistor Voltage
18V
Current-surge
250A
Number Of Circuits
1
Maximum Ac Volts
10VAC
Maximum Dc Volts
14VDC
Energy
0.80J
Package / Case
Radial
Product
MOV
Voltage Rating Dc
14 V
Voltage Rating Ac
10 V
Clamping Voltage
42 V
Peak Surge Current
250 A
Capacitance
2000 pF
Operating Temperature Range
- 55 C to + 125 C
Mounting
Radial
Dimensions
8 mm Dia.
Termination Style
Through Hole
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Contains lead / RoHS non-compliant
• For ratings of individual members of a series, see Device Ratings and Specifications chart
Continuous
Steady State Applied Voltage:
Transients:
Operating Ambient Temperature Range (T
Storage Temperature Range (T
Temperature Coefficient (a
Hi-Pot Encapsulation (COATING Isolation Voltage Capability)
(Delectric must withstand indicated DC voltage for one minute per MIL-STD 202, Method 301)
COATING Insulation Resistance
©2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/ra.html for current information.
RoHS
Agency Approvals
Absolute Maximum Ratings
CAUTION: Stresses above those listed in "Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress only rating and
operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
Agency
RA Varistor Series
E320116
LR91788
AC Voltage Range (V
DC Voltage Range (V
Peak Pulse Current (I
For 8/20μs Current Wave (See Figure 2)
Single Pulse Energy Range (Note 1)
For 10/1000μs Current Wave (W
V
) of Clamping Voltage (V
STG
)
Agency File Number
A
)
M(AC)RMS
M(DC)
TM
)
)
)
C
) at Specified Test Current
Varistor Products
Low Profile / Application Specific Varistors > RA Series
TM
)
Revision: November 11, 2009
193
Description
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
V
used in automotive, motor-control, telecommunication, and
military applications.
See RA Series Device Ratings and Specifications Table for
part number and brand information.
Features
•
•
•
•
M(AC)RMS
Lead–free/RoHS
compliant parts
available (add
suffix "x2749")
Low profile outline with
precise seating plane
No derating up to
125ºC ambient
In-line leads
, and energy levels up to 140J. These varistors are
RA8 Series
100 to 1200
-55 to +125
-55 to +150
5.5 to 369
0.4 to 23
4 to 275
<0.01
5000
1000
RA16 Series RA22 Series
1000 to 4500
-55 to +125
-55 to +150
10 to 275
14 to 369
3.5 to 75
<0.01
5000
1000
•
•
•
2000 to 6500
-55 to +125
-55 to +150
Wide operating
voltage range:
V
V
High energy absorption
capability W
up to 140J
3 model sizes available
A8, RA16, and RA22
18 to 369
70 to 160
4 to 275
M(AC)RMS
M(DC):
<0.01
5000
1000
:
RA Varistor Series
TM
4 – 275V
5.5 – 369V
Units
%/ºC
MΩ
ºC
ºC
A
V
V
J
V

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V18RA8 Summary of contents

Page 1

RA Varistor Series RoHS Agency Approvals Agency Agency File Number E320116 LR91788 Absolute Maximum Ratings • For ratings of individual members of a series, see Device Ratings and Specifications chart Continuous Steady State Applied Voltage: AC Voltage Range (V ) ...

Page 2

... RA Series Ratings & Specifications Maximum Rating (125°C) Continuous Brand Part V V Number RMS M(AC) M(DC) (mm) (V) (V) † RA8 Series V8RA8 8R 4 5.5 V12RA8 12R 6 8 V18RA8 18R V22RA8 22R 14 (Note 3) V27RA8 27R 17 22 V33RA8 33R 20 26 V39RA8 39R 25 31 V47RA8 47R 30 38 V56RA8 ...

Page 3

RA Series Ratings & Specifications Maximum Rating (125°C) Continuous Brand Part V V Number RMS M(AC) M(DC) (mm) (V) (V) V200RA16 200R16 130 175 † V220RA16 220R16 140 180 † V240RA16 240R16 150 200 † V270RA16 270R16 ...

Page 4

... INDEFINITE Figure 7 196 Revision: November 11, 2009 V8RA8 - V12RA8 INDEFINITE 100 1,000 10,000 IMPULSE DURATION (μs) V18RA8 - V68RA8 INDEFINITE 100 1,000 10,000 IMPULSE DURATION (μs) V82RA8 - V430RA8 100 1,000 10,000 IMPULSE DURATION (μs) ©2009 Littelfuse, Inc. Specifications are subject to change without notice. ...

Page 5

Maximum Clamping Voltage for 16mm Parts V18RA16 - V68RA16 600 MAXIMUM CLAMPING VOLTAGE 500 18 TO 68V RATING N(DC) 400 - 125 C A 300 200 100 90 80 V68RA16 V56RA16 70 60 V47RA16 ...

Page 6

Low Profile / Application Specific Varistors > RA Series Maximum Clamping Voltage for 22mm Parts V24RA22 - V36RA22 300 MAXIMUM CLAMPING VOLTAGE 24 TO 36V RATING N(DC 200 125 C A 100 90 ...

Page 7

Wave Solder Profile Reflow Condition - Temperature Min (Ts(min)) Pre Heat - Temperature Max (Ts(max)) - Time (min to max) (ts) Average ramp–up rate (Liquidus Temp (TL) to peak TS(max Ramp-up Rate - Temperature (TL) (Liquidus) Reflow ...

Page 8

Low Profile / Application Specific Varistors > RA Series Product Dimensions (mm) D MAX Y n MIN A MAX SEATING PLANE 5.0 MIN X (0.197 MIN) Øb 0.05 ( 0.002) E MAX e 1.0 ( 0.039) Part Numbering System The ...

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