OV Series – Automotive Leaded Dual Function Varistors/
RFI Suppressors
Multilayer Technology
Varistor Plus
Description
The OV Series varistor/suppressor is a dual function device that protects against transient voltages
and radio-frequency noise generated within 12V
DC
and 24V
DC
vehicle power systems. This
component replaces two components: a low voltage varistor and a capacitor.
The OV Series incorporates a varistor function in automotive applications and a radio-frequency
filter operating in the capacitance range from 0.47 µF to 1.5 µF. These components are designed
for protection of all sensitive electronics circuits from both voltage transients and high-frequency
noice produced by electromechanical devices such as relays, electric motors, etc.
OV varistor/suppressors are square-shaped components with in-line leads, which require at least
30% less mounting space than the two components they replace.
Features
• Power supply voltages (V
DC
).......12V and 24V
• Operating voltage range (V
DC
).......16V to 56V
• Part number voltage range (V
RMS
)........14 to 40V
• Capacitance range (µF)..........0.47 to 1.5
• Capacitor temperature characteristics ..... Z5U/Y5V
• Protects against voltage transients and suppresses radio-frequency interference
• Dimensional and weight savings on PC board
• 2 model sizes available....... 7.3 x 9.0 and 7.8 x 12 mm
• In-line leads
• Available with straight or crimped leads
• Available in tape and reel for automatic insertion equipment
Absolute Maximum Ratings
Continuous:
Steady State Applied Voltage:
DC Voltage Range (V
DC
)
Transient:
Load Dump Energy (W
LD
)
5 Minute Jump Start Capacity (V
JUMP
)
Single Pulse Peak Current (
I
P
), 8/20 µs Waveform
Single Pulse Transient Energy (W
MAX
), 10/1000 µs Waveform
Operating Ambient Temperature
Storage Temperature Range
Threshold Voltage Temperature Coefficient
Insulation Resistance
Isolation Voltage Capability
Response Time
Value
16V to 56V
6J to 12J
24.5V to 71V
800A to 1200A
2.4J to 13.3J
-40°C to +85°C
-40°C to +125°C
< - 0.05%/°C
> 1GΩ
> 1kV
< 25ns
SEI Electronics Inc.
• P.O. Box 58789 • Raleigh, NC 27658-8789 • Telephone: (919) 850-9500 • FAX: (919) 850-9504
Toll Free: (888) SEI-SEI-SEI • www.seielect.com • email: marketing@seielect.com • ISO 9002 / QS 9000 Registered
44
OV Series – Automotive Leaded Dual Function Varistors/
RFI Suppressors
Multilayer Technology
HOW TO ORDER:
OV 1
20
K
105
Varistor Plus
OV SERIES (AUTOMOTIVE, DUAL FUNCTION LEADED DEVICES)
M
Z
122
R
PACKAGING OPTIONS:
(See page 52 for dimensional specifications)
B = Bulk
R = Reel (per IEC 286-2)
A = Ammo Pack
MAXIMUM SURGE CURRENT (Amps):
801 = 800 Amps
122 = 1200 Amps
DIELECTRIC MATERIAL:
Z stands for Z5U / Y5V
CAPACITANCE TOLERANCE:
M = + 20%
CAPACITANCE VALUE:
474 = .47 uF
105 = 1.0 uF
155 = 1.5 uF
V
N
TOLERANCE:
K = + 10%
MAXIMUM CONTINUOUS WORKING VOLTAGE (V
RMS
):
14 = 14
20 = 20
40 = 40
17 = 17
30 = 30
LEAD STYLE (VERSION) / LEAD SPACING:
(See page 54 for detailed drawings / dimensions)
Max. Surge
Current Code:
Version:
801:
1 = Straight Leads (5mm Lead Spacing)
801:
5 = Straight Leads, Kinked (5mm Lead Spacing)
122:
1 = Inward Crimped Leads (5mm Lead Spacing)
SERIES NAME
Standar
Series
OV
Voltage
Range
(V
RMS
)
14 to 40
14 to 40
Current Code
801
122
Packaging Options
B = Bulk R = Reel A = Ammo Pack
B
R
A
1500
1500
1500
1500
1500
1500
SEI Electronics Inc.
• P.O. Box 58789 • Raleigh, NC 27658-8789 • Telephone: (919) 850-9500 • FAX: (919) 850-9504
Toll Free: (888) SEI-SEI-SEI • www.seielect.com • email: marketing@seielect.com • ISO 9002 / QS 9000 Registered
45
OV Series – Automotive Leaded Dual Function Varistors/
RFI Suppressors
Multilayer Technology
Device Ratings and Characteristics
OV 14 K 474 MZ 801 - to OV 17 K 155 MZ 122 -
Catalog Number
Unit of Measure
V
RMS
Volts
V
DC
Volts
V
N
@ 1 mA
Volts
V
JUMP
5 min
Volts
V
C
Volts
I
C
Amps
W
MAX
10/1000 µs
Joules
W
LD
10 x
Joules
P
MAX
Watts
I
P
8/20 µs
Amps
C
(TYP)
Varistor Plus
@1 kHz
µF
12V Power Supply
OV 14 K 474 MZ 801 -
OV 17 K 474 MZ 801 -
OV 14 K 105 MZ 801 -
OV 17 K 105 MZ 801 -
OV 14 K 155 MZ 801 -
OV 17 K 155 MZ 801 -
OV 14 K 474 MZ 122 -
OV 17 K 474 MZ 122 -
OV 14 K 105 MZ 122 -
OV 17 K 105 MZ 122 -
14
17
14
17
14
17
14
17
14
17
16
20
16
20
16
20
16
20
16
20
24
27
24
27
24
27
24
27
24
27
24
27
24.5
30
24.5
30
24.5
30
24.5
30
24.5
30
24.5
30
40
44
40
44
40
44
40
44
40
44
40
44
5
5
5
5
5
5
10
10
10
10
10
10
2.4
2.8
2.4
2.8
2.4
2.8
5.8
7.4
5.8
7.4
5.8
7.4
6
6
6
6
6
6
12
12
12
12
12
12
0.015
0.015
0.015
0.015
0.015
0.015
0.030
0.030
0.030
0.030
0.030
0.030
800
800
800
800
800
800
1200
1200
1200
1200
1200
1200
0.47
0.47
1.00
1.00
1.50
1.50
0.47
0.47
1.00
1.00
1.50
1.50
14
OV 14 K 155 MZ 122 -
16
17
OV 17 K 155 MZ 122 -
20
Other capacitance values are also available.
Version 1
Version 5
Version 1
Current Code 801
Current Code 122
OV Series - Automotive Leaded Dual Function Varistors / RFI Suppressors
Voltage
Dimensions (mm)
Current
Range
Code
t
MAX
D
MAX
h/A
MAX
R
d
(V
RMS
)
801
14 - 40
7.5
9
5
0.6
5.5
122
14 - 40
8
12
5
0.6
5.5
SEI Electronics Inc.
• P.O. Box 58789 • Raleigh, NC 27658-8789 • Telephone: (919) 850-9500 • FAX: (919) 850-9504
Toll Free: (888) SEI-SEI-SEI • www.seielect.com • email: marketing@seielect.com • ISO 9002 / QS 9000 Registered
46
OV Series – Automotive Leaded Dual Function Varistors/
RFI Suppressors
Multilayer Technology
Device Ratings and Characteristics
OV 20 K 474 MZ 801 - to OV 40 K 155 MZ 122 -
Catalog Number
Unit of Measure
V
RMS
Volts
V
DC
Volts
V
N
@ 1 mA
Volts
V
JUMP
5 min
Volts
V
C
Volts
Varistor Plus
I
C
Amps
W
MAX
10/1000 µs
Joules
W
LD
10 x
Joules
P
MAX
Watts
I
P
8/20 µs
Amps
C
(TYP)
@1 kHz
µF
24V Power Supply
OV 20 K 474 MZ 801 -
OV 30 K 474 MZ 801 -
OV 40 K 474 MZ 801 -
OV 20 K 105 MZ 801 -
OV 30 K 105 MZ 801 -
OV 40 K 105 MZ 801 -
OV 20 K 155 MZ 801 -
OV 30 K 155 MZ 801 -
OV 40 K 155 MZ 801 -
OV 20 K 474 MZ 122 -
OV 30 K 474 MZ 122 -
OV 40 K 474 MZ 122 -
OV 20 K 105 MZ 122 -
OV 30 K 105 MZ 122 -
OV 40 K 105 MZ 122 -
20
30
40
20
30
40
20
30
40
20
30
40
20
30
40
26
38
56
26
38
56
26
38
56
26
38
56
26
38
56
33
47
68
33
47
68
33
47
68
33
47
68
33
47
68
33
47
68
26
50
71
26
50
71
26
50
71
26
50
71
26
50
71
26
50
71
54
77
110
54
77
110
54
77
110
54
77
110
54
77
110
54
77
110
5
5
5
5
5
5
5
5
5
10
10
10
10
10
10
10
10
10
3.2
4.5
5.0
3.2
4.5
5.0
3.2
4.5
5.0
7.8
13.0
13.3
7.8
13.0
13.3
7.8
13.0
13.3
6
6
6
6
6
6
6
6
6
12
12
12
12
12
12
12
12
12
0.015
0.015
0.015
0.015
0.015
0.015
0.015
0.015
0.015
0.030
0.030
0.030
0.030
0.030
0.030
0.030
0.030
0.030
800
800
800
800
800
800
800
800
800
1200
1200
1200
1200
1200
1200
1200
1200
1200
0.47
0.47
0.47
1.00
1.00
1.00
1.50
1.50
1.50
0.47
0.47
0.47
1.00
1.00
1.00
1.50
1.50
1.50
OV 20 K 155 MZ 122 -
20
26
OV 30 K 155 MZ 122 -
30
38
OV 40 K 155 MZ 122 -
40
56
Other capacitance values are also available.
Version 1
Version 5
Version 1
Current Code 801
Current Code 122
OV Series - Automotive Leaded Dual Function Varistors / RFI Suppressors
Voltage
Dimensions (mm)
Current
Range
Code
t
MAX
D
MAX
h/A
MAX
R
d
(V
RMS
)
801
14 - 40
7.5
9
5
0.6
5.5
122
14 - 40
8
12
5
0.6
5.5
SEI Electronics Inc.
• P.O. Box 58789 • Raleigh, NC 27658-8789 • Telephone: (919) 850-9500 • FAX: (919) 850-9504
Toll Free: (888) SEI-SEI-SEI • www.seielect.com • email: marketing@seielect.com • ISO 9002 / QS 9000 Registered
47
OV Series – Automotive Leaded Dual Function Varistors/
RFI Suppressors
Multilayer Technology
Performance Characteristics
Voltage/Current Curves
OV 14K...40K 474 MZ
OV 14K...40K 105 MZ 801
OV 14K...40K 155 MZ
Varistor Plus
Pulse Rating Curves
OV 14K...40K 474 MZ
OV 14K...40K 105 MZ 122
OV 14K...40K 155 MZ
t
p
t
p
SEI Electronics Inc.
• P.O. Box 58789 • Raleigh, NC 27658-8789 • Telephone: (919) 850-9500 • FAX: (919) 850-9504
Toll Free: (888) SEI-SEI-SEI • www.seielect.com • email: marketing@seielect.com • ISO 9002 / QS 9000 Registered
48
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