Raychem Circuit Protection’s ROV (Radial-leaded
Metal Oxide Varistor) devices help to provide
protection from overvoltage faults such as light-
ning, power contact and power induction, for a
wide variety of power systems. Suitable for a
broad range of applications including, but not
limited to, security systems, power supplies, surge
strips, motors and telecommunications equipment,
the ROV devices help to protect valuable equip-
ment from potential power surge damage by
clamping high-energy, short-duration impulses.
The ROV devices have high current handling and
energy absorption capability and fast response
times to help protect against transient faults.
The ROV overvoltage protection devices expand
Raychem Circuit Protection’s portfolio and can
offer the circuit board designer a complete over-
current/overvoltage solution. For example, pairing
an ROV device with Raychem Circuit Protection’s
PolySwitch™ LVR overcurrent protection devices
can help provide a completely resettable circuit
protection solution for power supplies, surge strips
and control board transformers. In addition, ROV
devices can be combined with PolySwitch devices
to help provide protection for electric motors,
telecom equipment and various other systems.
Radial-leaded Metal Oxide Varistor Devices
Benefits:
• Helps provide overvoltage fault protection
for a wide variety of power systems
• Helps designers meet UL (UL1414 and
UL1449 2nd Edition), CSA and VDE standards
• Helps reduce warranty and service costs
• Low cost ($/Joule)
Features:
• Various diameter sizes: 5mm, 7mm, 10mm,
14mm, 20mm
• Broad varistor voltage range: 18V – 1800V
• Various surge capabilities: standard, high
surge, extra high surge
• High current handling and energy absorp-
tion capability
• Fast response time
• Low leakage current
• Various lead types: straight, kinked, other
special lead types
• Various packaging options: bulk, tape and
reel, ammo pack
Application examples:
• Power systems
• Surge strips
• Security systems
• Motor protection
• Telecommunications equipment
• Automotive electrical systems
• Household appliances
Varistor Parameter Table
ROV05-180M – ROV05-680K
ROV05H180M – ROV05H680K
ROV07-180M – ROV07-680K
ROV07H180M – ROV07H680K
ROV10-180M – ROV10-680K
ROV10H180M – ROV10H680K
ROV14-180M – ROV14-680K
ROV14H180M – ROV14H680K
ROV20-180M – ROV20-680L
ROV20H180M – ROV20H680L
ROV05-820K – ROV05-751K
ROV05H820K – ROV05H751K
ROV07-820K – ROV07-821K
ROV07H820K – ROV07H821K
ROV10-820K – ROV10-182K
ROV10H820K – ROV10H112K
ROV14-820K – ROV14-182K
ROV14H820K – ROV14H112K
ROV20-820K – ROV20-182K
ROV20H820K – ROV20H112K
ROV14E201K – ROV14E361K
ROV20E201K – ROV20E361K
18-68
82-750
82-820
82-1800
200-360
11-40
50-460
50-510
50-1000
130-230
14-56
65-615
65-670
65-1465
170-300
40-150
36-135
145-1290
135-1355
135-2970
340-595
100
250
500
1000
2000
400
1200
2500
4500
6500
250
500
1000
2000
3000
800
1750
3500
6000
10000
6500
12500
0.6-2.1
1.2-4.3
2.4-8.5
4.7-17.0
7.0-24.0
2.8-22.5
5.5-47.0
11.0-174.0
22.0-348.0
44.0-695.0
0.7-2.6
1.5-5.4
2.6-9.8
5.2-20.0
13.0-49.0
3.5-29.0
7.0-60.0
14.0-155.0
28.0-310.0
56.0-620.0
84-151
168-302
Varistor
Voltage1
(VDC) (AC Vrms)(V
DC)(VDC)(A)
-3H3E3-3H3E3
(J)
Maximum Allowable Voltage
Maximum
Clamping
Voltage2
Maximum Surge Current
(8x20us) Energy (10x1000us)
1) The Varistor Voltage is measured at specified current values: • 5mm devices: voltage measured at 0.1mA
• 7, 10, 14, 20mm devices: voltage measured at 1.0mA
2) The Maximum Clamping Voltage values are measured at the
following current values: 180M–680K 820K and above 180M–680K 820K and above
• 5mm devices: 1A 5A • 14mm devices: 10A 50A
• 7mm devices: 2.5A 10A • 20mm devices: 20A 100A
• 10mm devices: 5A 25A
3) - = Standard series devices; H = High surge series; E = Extra high surge series
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Worldwide Headquarters
308 Constitution Drive, MS R21/2A
Menlo Park, CA USA 94025-1164
Tel (800) 227-7040
(650) 361-6900
Fax (650) 361-2508
All information, including illustrations, is believed to be reliable. Users, however, should independently evaluate the suitability of each product for their application. Tyco
Electronics Corporation makes no warranties as to the accuracy or completeness of the information, and disclaims any liability regarding its use. Tyco Electronics’ only
obligations are those in the Company’s Standard Terms and Conditions of Sale for this product, and in no case will Tyco Electronics be liable for any incidental, indirect,
or consequential damages arising from the sale, resale, use, or misuse of the product. Specifications are subject to change without notice. In addition, Tyco Electronics
reserves the right to make changes—without notification to Buyer—to materials or processing that do not affect compliance with any applicable specification.
©2003 Tyco Electronics Corporation. Printed in USA. RCP0056.1103.1000
Europe
Tel 32-16-351321
Fax 32-16-351319
www.tycopowercomponents.com
www.circuitprotection.com.hk (Chinese)
www.raychem.co.jp/polyswitch (Japanese)
Japan
Tel 81-44-900-5110
Fax 81-44-900-5140
Asia Pacific
Tel 852-2738-3401
Fax 852-2735-1185
Radial-leaded Metal Oxide Varistor Devices
Raychem Logo
471 K
Voltage Designator
Tolerance (± 10%)
Lot Identification
Agency Marking
471 K
Device Marking
Part Numbering Scheme
Radial-leaded Metal Oxide Varistor
Diameter of disc
05 : 5mm
07 : 7mm
10 : 10mm
14 : 14mm
20 : 20mm
Surge series
- : Standard surge series
H : High surge series
E : Extra high surge series
Varistor voltage indicator
241 = 24 x 10^1 = 240V
Varistor voltage tolerance
K : ±10%
L : ±15%
M : ±20%
Lead configuration
No suffix : Kinked lead
-S : Straight lead
-A : Inside crimp "Type A"
-B : Inside crimp "Type B"
-C : Outside crimp "Type C"
-D : Outside crimp "Type D"
Lead spacing
No suffix : standard spacing*
-5 : 5mm
-7 : 7.5mm
-10 : 10mm
Lead diameter
No suffix : standard spacing*
6 : 0.6mm
8 : 0.8mm
1 : 1.0mm
Packaging
No suffix : Bulk
-2 : Tape & reel
-AP : Ammo pack
ROV 14 - 241 K -S -10 1 -2
General Characteristics
Storage temperature -40° to +125°C
Maximum operating temperature -40° to +85°C
Maximum working surface temperature +115°C
Temperature coefficient of voltage 0 to +0.05% / °C max.
Insulation resistance of coating (@500 VDC) Over 1000MΩ
Maximum response time 25ns
Lead material Sn/Pb Plated Copper
* Please visit us at www.tycopowercomponents.com for detailed product information.
