SMDB3 STMicroelectronics, SMDB3 Datasheet - Page 4

• Manufacturer Part Number: SMDB3
• Description: DIAC 32V 1A SOT-23
• Manufacturer: STMicroelectronics

Specifications of SMDB3

• Current - Peak Output: 1A
• Voltage - Breakover: 28 ~ 36V
• Current - Breakover: 10µA
• Package / Case: SOT-23-3
• Breakover Voltage Vbo: 45 V
• Mounting Style: SMD/SMT
• Breakover Current Ibo Min: 50 uA
• Off-state Leakage Current @ Vdrm Idrm: 0.01 mA
• Rated Repetitive Off-state Voltage Vdrm: 36 V
• Operating Temperature Range: -40°C To +125°C
• Thyristor Case: SOT-23
• No. Of Pins: 3
• Breakover Voltage Min: 28V
• Dc Breakover Voltage: 32V
• Forward Current If: 1A
• Leaded Process Compatible: Yes
• Rohs Compliant: Yes
• Vbo: 32V and 40V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Hold (ih) (max): -
• Lead Free Status / Rohs Status: Details
• Other names: 497-3148-2

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Fig. 1: Relative variation of VBO versus junction
temperature (typical values).
1.10
1.05
1.00
0.95
0.90
0.85
0.80
Fig. 3: Time duration while current pulse is higher
50mA versus C and Rs (typical values).
40
35
30
25
20
15
10
PACKAGE MECHANICAL DATA (in millimeters)
DO-35
5
0
10
tp(µs)
25
VBO [Tj] / VBO [Tj=25°C]
Tj=25°C
O
C
/
20
D
50
50
A
Tj(°C)
75
DB3/DB4
100
0
33
O
/
SMDB3
D
47
100
200
10
C
68
C(nF)
22
500
125
O
/
B
Fig. 2: Repetitive peak pulse current versus pulse
duration (maximum values).
20.0
10.0
1.0
0.1
REF.
1
ITRM(A)
C
D
A
B
28.00
0.458
Min.
3.05
1.53
Millimeters
DIMENSIONS
Max.
0.558
SMDB3
4.50
2.00
DB3/DB4
tp(µs)
10
DB3 DB4 SMDB3
0.120
0.060
1.102
0.018
Min.
Inches
Tj initial=25°C
Max.
0.177
0.079
0.022
F=120Hz
100