Features
l The three layer, two terminal, axial lead, hermetically sealed
diacs are designed specifically for triggering thyristors.
l These diacs are intended for use in thyrisitors phase control ,
circuits for lamp dimming, universal motor speed control ,and
heat control.
Electrical Characteristics @ 25oC Unless Otherwise Specified
DB3/DC34
AND
DB4
SILICON
BIDIRECTIONAL
DIAC
Power dissipation
on Printed
Circuit(l=10mm) PC150mW T
A
=65oC
Repetitive Peak
on-state Current
DB3,DC34,DB4 ITRM 2.0A
Breakover Voltage
Symmetry
DB3, DC34, DB4 |+VBO|
-|-VBO|±3V C=22nF(Note 3)
Voltage(Note 2)
Vo(min) 5V
Breakover
Current(Note 2) IBO(max) 100uA C=22nF
Rise Time(Note 2)
Tr
1.5us
Leakage
Current(Note 2) IB(max) 10uA VB=0.5VBO(max)
DO-35G
INCHES MM
DIM MIN MAX MIN MAX NOTE
A --- .150 --- 3.8
B --- .079 --- 2.00
C --- .020 --- .52
D 1.083 --- 27.50 ---
A
B
C
D
D
DIMENSIONS
omponents
20736 Marilla Street Chatsworth
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MCC
Revision: C 2012/06/20
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Micro Commercial Components
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Type number is marked.
• Lead Free Finish/Rohs Compliant (Note1) ("P"Suffix designates
Compliant. See ordering information)
• Moisture Sensitivity: Level 1
2. Electrical characteristics applicable in both forward and
Note: 1. Lead in Glass Exemption Applied, see EU Directive Annex 7(C)-I.
reverse directions.
3. Connected in parallel with the devices.
tp=10us, f=100HZ
Breakover Voltage
DB3
DC34
DB4 VBO
Min Typ Max
28 32 36V
30 34 38V
35 40 45V C=22nF(Note 3)
Output
Dynamic Breakover
Voltage
Δ V
VBO and VF at10mA
(Note 2)
5V(Min.)
l Operating Temperature: -40oC to +125oC
l Storage Temperature: -40oC to +125oC
l Thermal Resistance Junction to Lead:167 C/W
l Thermal Resistance Junction to Ambient: 400 C/W
Maximum Ratings
o
o
Revision: C 2012/06/20
MCC
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Micro Commercial Components
www.mccsemi.com
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Typical Performance Characteristics
Diagram 1 : Test circuit Figure 1. Admissible Power Dissipation Curve
Figure 2. Relative V ariation of VBO versus
Junction Temperature Figure 3. Repetitive Peak Pulse Current versus
Pulse Duration (maximum values)
VBO : Break-Over Voltage
IBO : Break-Over Current
ǻV: Dynamic Breakover Voltage
IB: Leakage Current at VB=0.5*VBO
VF: Voltage at Current IF=10mA
ǻV
VBO
0.5VBO
VF
IF=10m
IBO
IB
Ambient Tempeatature (oC)
0
40
80
120
160
0 10 20 30 40 50 60 70 80 90 100 110 120 130
Power Dissipation (mW)
1.00
1.01
1.02
1.03
1.04
1.05
1.06
1.07
1.08
25 50 75 100 125
VBO [Tj] / VBO [Tj=25°C]
Tj(°C)
0.1
1
10
100
1 10 100
tp (ȝs)
Repetitive peak pulse current (A)
MCC
Revision: C 2012/06/20
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Micro Commercial Components
www.mccsemi.com
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1
Device Packing
Part Number-TP Tape&Reel: 5Kpcs/Reel
Part Number-AP Ammo Packing: 5Kpcs/Ammo Box
Part Number-BP Bulk: 100Kpcs/Carton
Ordering Information :
***IMPORTANT NOTICE***
Micro Commercial Components Corp. reserves the right to make changes without further notice to any product herein to
make corrections, modifications , enhancements , improvements , or other changes . Micro Commercial Components
Corp . does not assume any liability arising out of the application or use of any product described herein; neither does it
convey any license under its patent rights ,nor the rights of others . The user of products in such applications shall assume all
risks of such use and will agree to hold Micro Commercial Components Corp . and all the companies whose products are
represented on our website, harmless against all damages.
***LIFE SUPPORT***
MCC's products are not authorized for use as critical components in life support devices or systems without the express written
approval of Micro Commercial Components Corporation.
***CUSTOMER AWARENESS***
Counterfeiting of semiconductor parts is a growing problem in the industry. Micro Commercial Components (MCC) is taking
strong measures to protect ourselves and our customers from the proliferation of counterfeit parts. MCC strongly encourages
customers to purchase MCC parts either directly from MCC or from Authorized MCC Distributors who are listed by country on
our web page cited below. Products customers buy either from MCC directly or from Authorized MCC Distributors are genuine
parts, have full traceability, meet MCC's quality standards for handling and storage. MCC will not provide any warranty
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problem and encourage our customers to do their part in stopping this practice by buying direct or from authorized
distributors.
