TMMDB3TG
DIAC
FEATURES
s
s
s
V
BO
: 32V
Low breakover current: 15µA max
Breakover voltage range: 30 to 34V
DESCRIPTION
Functioning as a trigger diode with a fixed voltage
reference, the TMMDB3TG can be used in con-
junction with triacs for simplified gate control cir-
cuits or as a starting element in fluorescent lamp
ballasts.
MINIMELF
ABSOLUTE MAXIMUM RATINGS
(limiting values)
Symbol
I
TRM
Parameter
Repetitive peak on-state current
tp = 20
µs
F= 120 Hz
Storage temperature range
Operating junction temperature range
Value
2
Unit
A
°C
Tstg
Tj
- 40 to + 125
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TMMDB3TG
ELECTRICAL CHARACTERISTICS
(Tj = 25°C unless otherwise specified)
Symbol
V
BO
Parameter
Breakover voltage *
Test Conditions
C = 22nF **
MIN.
TYP.
MAX.
I V
BO1
- V
BO2
I
∆
V
V
O
I
BO
tr
I
R
Breakover voltage
symmetry
Dynamic breakover
voltage *
Output voltage *
Breakover current *
Rise time *
Leakage current *
C = 22nF **
V
BO
and V
F
at
10mA
see diagram 2
(R=20Ω)
C = 22nF **
see diagram 3
V
R
= 0.5 V
BO
max
MAX.
MIN.
MIN.
MAX.
MAX.
MAX.
Value
30
32
34
±2
9
5
15
2
10
V
V
V
µA
µs
µA
Unit
V
* Applicable to both forward and reverse directions.
** Connected in parallel to the device.
ORDERING INFORMATION
TMM
MINIMELF
Diac Series
DB
3
TG
Special V
BO
range
Breakover voltage
3: V
BO
typ = 32V
OTHER INFORMATION
Part Number
TMMDB3TG
(None)
Marking
Weight
0.04 g
Base Quantity
2500
Packing Mode
Tape & Reel
2/4
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TMMDB3TG
Diagram 1:
Voltage - current characteristic curve.
Diagram 2:
Test circuit.
10 kΩ
500 kΩ
D.U.T
Rs=0
+ IF
10mA
220 V
50 Hz
C=0.1µF
Vo
I
P
T410
R=20
Ω
IBO
I
R
0,5 VBO
V
VF
VBO
-V
+ V
Diagram 3:
Rise time measurement.
l
p
90 %
- IF
10 %
tr
Fig. 1:
Relative variation of VBO versus junction
temperature (typical values)
VBO [Tj]
VBO [Tj = 25°C]
1.08
Fig. 2:
Repetitive peak pulse current versus pulse
duration (maximum values).
ITRM(A)
20.0
10.0
F=120Hz
Tj initial=25°C
1.06
1.04
1.0
1.02
Tj (°C)
1.00
25
50
75
100
125
tp(µs)
0.1
1
10
100
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TMMDB3TG
Fig. 3:
Time duration while current pulse is higher
50mA versus C and Rs (typical values).
tp(µs)
40
Tj=25°C
35
30
25
20
15
10
5
0
10
20
50
10Ω
0Ω
33Ω
47Ω
68Ω
22Ω
C(nF)
200
500
100
PACKAGE MECHANICAL DATA
(in millimeters)
MINIMELF
A
REF.
E
F
DIMENSIONS
Millimeters
Min.
Typ. Max. Min.
3.40
1.60
0.45
1.50
3.6
1.62
0.50
0.130
0.063
0.016
Inches
Typ. Max.
0.134
0.063
0.018
0.059
0.142
0.064
0.020
/
O
B
A
B
3.30
1.59
0.40
O
D
/
C
O
0.05 E-F
/
C
C
D
FOOTPRINT
2
2.5
5
4/4
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