NOT RECOMMENDED FOR NEW DESIGNS
MCC
TM
Micro Commercial Components
DB3/DC34
AND
DB4
omponents
20736 Marilla Street Chatsworth
!"#
$ % !"#
Features
l
SILICON
BIDIRECTIONAL
DIAC
The three layer, two terminal, axial lead, hermetically sealed
diacs are designed specifically for triggering thyristors.
•
•
l
Lead Free Finish/Rohs Compliant (Note1) ("P"Suffix designates
Compliant. See ordering information)
Moisture Sensitivity: Level 1
These diacs are intended for use in thyrisitors phase control ,
DO-35G
circuits for lamp dimming, universal motor speed control ,and
heat control. Type number is marked.
Maximum Ratings
l
l
l
l
o
o
Operating Temperature: -40 C to +125 C
o
o
Storage Temperature: -40 C to +125 C
Thermal Resistance Junction to Lead:167 oC/W
o
Thermal Resistance Junction to Ambient: 400 C/W
Electrical Characteristics @ 25oC Unless Otherwise Specified
Power dissipation
on Printed
Circuit(l=10mm)
Repetitive Peak
on-state Current
DB3,DC34,DB4
Breakover Voltage
DB3
DC34
DB4
PC
I TRM
150mW
2.0A
D
T A=65oC
A
tp=10us, f=100HZ
B
D
VBO
Min Typ Max
28 32 36V
30 34 38V
35 40 45V
C=22nF(Note 3)
5V(Min.)
VBO and VF at10mA
C
Dynamic Breakover
Voltage (Note 2)
Δ V
Breakover Voltage
|+VBO |
Symmetry
DB3, DC34, DB4
-|-V BO|
Output
Voltage(Note 2)
Breakover
Current(Note 2)
±3V
DIMENSIONS
INCHES
V o(min)
5V
I BO(max)
100µA
Rise Time(Note 2)
Tr
1.5us
Leakage
Current(Note 2)
I B(max)
10µA
Note:
C=22nF(Note 3)
C=22nF
DIM
A
B
C
D
MIN
------1.083
MM
MAX
.150
.079
.020
---
MIN
------27.50
MAX
3.8
2.00
.52
---
NOTE
VB =0.5V BO(max)
1. Lead in Glass Exemption Applied, see EU Directive Annex 7(C)-I.
2. Electrical characteristics applicable in both forward and
reverse directions.
3. Connected in parallel with the devices.
Revision: C
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MCC
Typical Performance Characteristics
TM
Micro Commercial Components
IF=10m
VBO
: Break-Over Voltage
IBO
IBO
: Break-Over Current
IB
ǻV
: Dynamic Breakover Voltage
0.5VBO
IB
: Leakage Current at V B=0.5*VBO
ǻV
VF
: Voltage at Current I F=10mA
VF
VBO
Diagram 1 : Test circuit
Figure 1. Admissible Power Dissipation Curve
Power Dissipation (mW)
160
120
80
40
0
0
10 20 30 40 50 60 70 80 90 100 110 120 130
Ambient Tempeatature ( oC)
Figure 2. Relative Variation of VBO versus
Junction Temperature
Repetitive peak pulse current (A)
VBO [Tj] / VBO [Tj=25°C]
1.08
Figure 3. Repetitive Peak Pulse Current versus
Pulse Duration (maximum values)
1.07
1.06
1.05
1.04
1.03
1.02
1.01
1.00
25
50
75
100
10
1
0.1
1
125
10
100
tp (ȝs)
Tj(°C)
Revision: C
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MCC
TM
Micro Commercial Components
Ordering Information :
Device
Packing
Part Number-TP
Tape&Reel: 5Kpcs/Reel
Part Number-AP
Ammo Packing: 5Kpcs/Ammo Box
Part Number-BP
Bulk: 100Kpcs/Carton
***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
coverage or other assistance for parts bought from Unauthorized Sources. MCC is committed to combat this global
problem and encourage our customers to do their part in stopping this practice by buying direct or from authorized
distributors.
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