Copyright & Copy;2000 Shindengen Electric Mfg.Co.Ltd
RATINGS
SHINDENGEN
OUTLINE DIMENSIONS
(Unit : mm)
Case : 1Y
SMD
Varistor
VRYA15
●Absolute Maximum Ratings
Item Symbol Conditions Ratings Unit
Storage Temperature Tstg -30～125 ℃
Junction Temperature Tj 125 ℃
Ta = 40℃, Sine wave, R-load, Commercial frequency, 140
On alumina substrate, 1 element operation
Ta = 40℃, Sine wave, R-load, Commercial frequency, 90
Average Rectified Forward Current IOOn alumina substrate, 2 elements operation mArms
Ta = 40℃, Sine wave, R-load, Commercial frequency, 90
On glass-epoxy substrate, 1 element operation
Ta = 40℃, Sine wave, R-load, Commercial frequency, 50
On glass-epoxy substrate, 2 elements operation
50Hz, Sine wave, Non-repetitive, 2 elements series operation 6.5 Arms
Peak Surge Forward Current IFSM 10/200μs, Non-repetitive, 2 elements series operation 50 A
10/1000μs, Non-repetitive, 2 elements series operation 24 A
●Electrical Characteristics (Tl=25℃)
Item Symbol Conditions Ratings Unit
IF = 1mA, 1 element 5.13～6.37
IF = 1mA, 2 elements series 10.25～12.75
VFIF = 10mA, 1 element 6.25～7.50 V
Forward Voltage IF = 10mA, 2 elements series 12.50～15.00
IF = 70mA, 1 element 7.13～8.37
IF = 70mA, 2 elements series 14.25～16.75
Junction Capacitance Cj f = 100kHz, VD = 0V, OSC = 50mV TYP 5 pF
Junction to ambient, On alumina substrate, 1 element operation MAX 90
Thermal Resistance θja Junction to ambient, On alumina substrate, 2 elements operation MAX 150 ℃/W
Junction to ambient, On glass-epoxy substrate, 1 element operation MAX 150
Junction to ambient, On glass-epoxy substrate, 2 elements operation MAX 250
Forward Voltage
0.1
1
10
100
1000
0246810 12
VRYA15
Pulse measurement
Tl=125°C [TYP] Tl=25°C [TYP]
per element
Forward Voltage VF [V]
Forward Current IF [mA]
Forward Power Dissipation
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
0 0.04 0.08 0.12 0.16 0.2 0.24 0.28
VRYA15
Tj=125°C
Sine Wave
per element
Average Rectified Forward Current IO (rms) [A]
Power Dissipation P [W]
0
0.04
0.08
0.12
0.16
0.2
0.24
0.28
020 40 60 80 100 120 140 160
VRYA15 Derating Curve
1-element operation
Sine Wave
R-load
Free in air
2-element series operation
Alumina substrate
Soldering land 1mmφ
Conductor layer 20µm
25 × 25 × 0.64mm
Ambient Temperature Ta [°C]
Average Rectified Forward Current IO (rms) [A]
0
0.02
0.04
0.06
0.08
0.1
0.12
0.14
020 40 60 80 100 120 140 160
VRYA15 Derating Curve
1-element operation
Sine Wave
R-load
Free in air
2-element series operation
Glass-epoxy substrate
Soldering land 1mmφ
Conductor layer 35µm
25 × 25 × 1.5mm
Ambient Temperature Ta [°C]
Average Rectified Forward Current IO (rms) [A]
Peak Surge Forward Capability
0
2
4
6
8
110 100
VRYA15
2 5 20 50
Number of Cycles [cycles]
Peak Surge Forward Current IFSM
(rms) [A]
IFSM
10ms 10ms
1 cycle
2-element series operation,
per element
non-repetitive,
sine wave,
Tj=25°C before
surge current is applied
Junction Capacitance
0
2
4
6
8
10
12
14
VRYA15
10 100 1000 10000
0.05 0.50.2 20 5052 200 500 2000 5000
0.02 0.05 0.50.2 20520.0050.002
TYP
per element
Tl = 25°C
Frequency f [kHz]
Junction Capacitance Cj [pF]
