ULCE SERIES
ULTRA LOW CAPACITANCE
TRANSIENT VOLTAGE
VBR : 6.5 - 90 Volts
SUPPRESSOR
P
PK
: 1500 Watts
FEATURES :
* 1500W Peak Pulse Surge reverse
capability on 10/1000µs waveform
* Excellent clamping capability
* Low incremental surge resistance
* Fast response time : typically less than 5.0 ns
from 0 volts to BV
MECHANICAL DATA
* Case : DO-201 Molded plastic
* Epoxy : UL94V-O rate flame retardant
* Lead : Axial lead solderable per MIL-STD-202,
method 208 guaranteed
* Polarity : Color band denotes positive end on the
Transorb (cathode)
* Mounting position : Any
* Weight : 0.93 gram
MAXIMUM RATINGS
Rating at 25 °C ambient temperature unless otherwise specified.
Rating Symbol Value Unit
Peak Pulse Power Dissipation on 10/1000µs
waveform (Note 1, Figure 1)
Steady State Power Dissipation at TL = 75 °C
Lead Lengths 0.375", (9.5mm) (Note 2)
Peak Pulse Power Surge Current on 10/1000 µs
Waveform (Fig. 3, Note 1)
Operating and Storage Temperature Range TJ, TSTG - 65 to + 175 °C
Note :
(1) Non-repetitive Current pulse, per Fig. 3 and derated above Ta = 25
°
C per Fig. 2
(2) 8.3 ms single half sine-wave, duty cycle = 4 pulses per minutes maximum.
UPDATE : APRIL 6, 2002
PPPM Minimum 1500 Watts
IRSM See Table 1. Amps.
PD5.0 Watts
DO-201
0.375 (9.53)
0.285 (7.24)
0.21 (5.33)
0.19 (4.83)
0.042 (1.07)
0.038 (0.97)
Dimensions in inches and (millimeters)
1.00 (25.4)
MIN.
1.00 (25.4)
MIN.
ELECTRICAL CHARACTERISTICS
Rating at 25
°
C ambient temperature unless otherwise specified
Reverse Maximum Maximum Maximum Maximum Working Max. Inverse Peak Inverse
Breakdown Voltage @ It Stand-off Reverse Clamping Reverse Junction Inverse Blocking Blocking
Voltage Leakage Voltage Current Capacitance Blocking Current Voltage
@ VRWM @ IRSM @ 0 Volt Voltage @ VWIB
VBR (V) It VRWM IRVRSM IRSM VWIB IIB VPIB
Min. Max. (mA) (V) (µA) (V) (A) pF (V) mA (V)
ULCE6.5 7.22 8.82 10 6.5 1000 12.3 100 35 75 1.0 100
ULCE6.5A 7.22 7.98 10 6.5 1000 11.2 100 35 75 1.0 100
ULCE7.0 7.78 9.51 10 7.0 500 13.3 100 35 75 1.0 100
ULCE7.0A 7.78 8.60 10 7.0 500 12.0 100 35 75 1.0 100
ULCE7.5 8.33 10.2 10 7.5 250 14.3 100 35 75 1.0 100
ULCE7.5A 8.33 9.21 10 7.5 250 12.9 100 35 75 1.0 100
ULCE8.0 8.89 10.9 10 8.0 100 15.0 100 35 75 1.0 100
ULCE8.0A 8.89 9.83 10 8.0 100 13.6 100 35 75 1.0 100
ULCE8.5 9.44 11.5 1.0 8.5 50 15.9 94 35 75 1.0 100
ULCE8.5A 9.44 10.4 1.0 8.5 50 14.4 100 35 75 1.0 100
ULCE9.0 10.0 12.2 1.0 9.0 10.0 16.9 89 35 75 1.0 100
ULCE9.0A 10.0 11.1 1.0 9.0 10.0 15.4 97 35 75 1.0 100
ULCE10 11.1 13.6 1.0 10 5.0 18.8 80 35 75 1.0 100
ULCE10A 11.1 12.3 1.0 10 5.0 17.0 88 35 75 1.0 100
ULCE11 12.2 14.9 1.0 11 5.0 20.1 74 35 75 1.0 100
ULCE11A 12.2 13.5 1.0 11 5.0 18.2 82 35 75 1.0 100
ULCE12 13.3 16.3 1.0 12 5.0 22.0 68 35 75 1.0 100
ULCE12A 13.3 14.7 1.0 12 5.0 19.9 75 35 75 1.0 100
ULCE13 14.4 17.6 1.0 13 5.0 23.8 63 35 75 1.0 100
ULCE13A 14.4 15.9 1.0 13 5.0 21.5 70 35 75 1.0 100
ULCE14 15.6 19.1 1.0 14 5.0 25.8 58 35 75 1.0 100
ULCE14A 15.6 17.2 1.0 14 5.0 23.2 65 35 75 1.0 100
ULCE15 16.7 20.4 1.0 15 5.0 26.9 56 35 75 1.0 100
ULCE15A 16.7 18.5 1.0 15 5.0 24.4 61 35 75 1.0 100
ULCE16 17.8 21.8 1.0 16 5.0 28.8 52 35 75 1.0 100
ULCE16A 17.8 19.7 1.0 16 5.0 26.0 57 35 75 1.0 100
ULCE17 18.9 23.1 1.0 17 5.0 30.5 49 35 75 1.0 100
ULCE17A 18.9 20.9 1.0 17 5.0 27.6 54 35 75 1.0 100
ULCE18 20 24.4 1.0 18 5.0 32.2 46 35 75 1.0 100
ULCE18A 20 22.1 1.0 18 5.0 29.2 51 35 75 1.0 100
ULCE20 22.2 27.1 1.0 20 5.0 35.8 42 35 75 1.0 100
ULCE20A 22.2 24.5 1.0 20 5.0 32.4 46 35 75 1.0 100
ULCE22 24.4 29.8 1.0 22 5.0 39.4 38 35 75 1.0 100
ULCE22A 24.4 26.9 1.0 22 5.0 35.5 42 35 75 1.0 100
ULCE24 26.7 32.6 1.0 24 5.0 43.0 35 35 75 1.0 100
ULCE24A 26.7 29.5 1.0 24 5.0 38.9 39 35 75 1.0 100
ULCE26 28.9 35.3 1.0 26 5.0 46.6 32 35 75 1.0 100
ULCE26A 28.9 31.9 1.0 26 5.0 42.1 36 35 75 1.0 100
ULCE28 31.1 38.0 1.0 28 5.0 50.1 30 35 75 1.0 100
ULCE28A 31.1 34.4 1.0 28 5.0 45.5 33 35 75 1.0 100
ULCE30 33.3 40.7 1.0 30 5.0 53.5 28 35 75 1.0 100
ULCE30A 33.3 36.8 1.0 30 5.0 48.4 31 35 75 1.0 100
ULCE33 36.7 44.9 1.0 33 5.0 59.0 25.4 35 75 1.0 100
ULCE33A 36.7 40.6 1.0 33 5.0 53.3 28.1 35 75 1.0 100
ULCE36 40.0 48.9 1.0 36 5.0 64.3 23.3 35 75 1.0 100
ULCE36A 40.0 44.2 1.0 36 5.0 58.1 25.8 35 75 1.0 100
ULCE40 44.4 54.3 1.0 40 5.0 71.4 21 35 75 1.0 100
ULCE40A 44.4 49.1 1.0 40 5.0 64.5 23.3 35 75 1.0 100
ULCE43 47.8 58.4 1.0 43 5.0 76.7 19.5 35 150 1.0 200
ULCE43A 47.8 52.8 1.0 43 5.0 69.4 21.6 35 150 1.0 200
TYPE
NUMBER
ELECTRICAL CHARACTERISTICS
°
C ambient temperature unless otherwise specified
Reverse Maximum Maximum Maximum Maximum Working Max. Inverse Peak Inverse
Breakdown Voltage @ It Stand-off Reverse Clamping Reverse Junction Inverse Blocking Blocking
Voltage Leakage Voltage Current Capacitance Blocking Current Voltage
@ VRWM @ IRSM @ 0 Volt Voltage @ VWIB
VBR (V) It VRWM IRVRSM IRSM VWIB IIB VPIB
Min. Max. (mA) (V) (µA) (V) (A) pF (V) mA (V)
ULCE45 50.0 61.1 1.0 45 5.0 80.3 18.7 35 150 1.0 200
ULCE45A 50.0 55.3 1.0 45 5.0 72.7 20.6 35 150 1.0 200
ULCE48 53.3 65.1 1.0 48 5.0 85.5 17.5 35 150 1.0 200
ULCE48A 53.3 58.9 1.0 48 5.0 77.4 19.4 35 150 1.0 200
ULCE51 56.7 69.3 1.0 51 5.0 91.1 16.5 35 150 1.0 200
ULCE51A 56.7 62.7 1.0 51 5.0 82.4 18.2 35 150 1.0 200
ULCE54 60.0 73.3 1.0 54 5.0 96.3 15.6 35 150 1.0 200
ULCE54A 60.0 66.3 1.0 54 5.0 87.1 17.2 35 150 1.0 200
ULCE58 64.4 78.7 1.0 58 5.0 103 14.6 35 150 1.0 200
ULCE58A 64.4 71.2 1.0 58 5.0 93.6 16 35 150 1.0 200
ULCE60 66.7 81.5 1.0 60 5.0 107 14 35 150 1.0 200
ULCE60A 66.7 73.7 1.0 60 5.0 96.8 15.5 35 150 1.0 200
ULCE64 71.1 86.9 1.0 64 5.0 114 13.2 35 150 1.0 200
ULCE64A 71.1 78.6 1.0 64 5.0 103 14.6 35 150 1.0 200
ULCE70 77.8 95.1 1.0 70 5.0 125 12.0 35 150 1.0 200
ULCE70A 77.8 86.0 1.0 70 5.0 113 13.3 35 150 1.0 200
ULCE75 83.3 102 1.0 75 5.0 134 11.2 35 150 1.0 200
ULCE75A 83.3 92.1 1.0 75 5.0 121 12.4 35 150 1.0 200
ULCE80 88.7 108 1.0 80 5.0 142 10.6 35 150 1.0 200
ULCE80A 88.7 98.0 1.0 80 5.0 129 11.6 35 150 1.0 200
ULCE90 100 122 1.0 90 5.0 160 9.4 35 300 1.0 200
ULCE90A 100 111 1.0 90 5.0 146 10.3 35 300 1.0 200
FIG.1 - PEAK PULSE POWER RATING CURVE
FIG.2 - PULSE DERATING CURVE
FIG.3 - PULSE WAVEFORM
TYPE
NUMBER
100
10
0.1
1.0
tp, PULSE WIDTH
P
PPM
,PEAK POWER POWER
(kW)
0.1µs1.0µs10µs100µs10ms
1.0ms
80
60
40
20
120
0
PEAK PULSE DERATING IN % OF
PEAK POWER OR CURRENT
100
0
25
75
50
100
125
150
175
Peak Power
(single Pulse)
Average Power
Lead Lengths
0.375"(9.5mm)
TL, LEAD TEMPERATURE (°C)
50
100
0
Tf = 10
µ
s
Peak Value
IRMS
Half Value - IRMS
TJ=25 °C
Pulse Width (tp) is defined
as that point where the peak
current decays to 50%
of IRSM
10X1000 Waveform
as defined by R.E.A.
T, TIME(ms)
2
tp
PEAK PULSE CURRENT - % IRMS
10 2 3 4
100ms