VISHAY
MMBZ...VDA and C Series
Vishay Semiconductors
Small Signal Zener Diodes, Dual
Features
鈥?Dual Silicon Planar Zener Diodes with Common
Cathode or Common Anode configurations.
鈥?Dual package provides for Bidirectional or sepa-
rate unidirectional configurations.
鈥?The dual configurations protect two separate lines
with only one device.
鈥?Peak Power: 40 W @1 ms (Bidirectional) .
鈥?Ideal for ESD Protection.
鈥?For bidirectional operation, circuit connected to
pins 1 and 2. For unidirectional operation, circuit
connected to pins 1 and 3 or pins 2 and 3.
MMBZ15VDC
MMBZ27VDC
MMBZ15VDA
MMBZ27VDA
3
3
1
18654
2
1
2
Common Cathode
Common Anode
Mechanical Data
Case:
SOT-23 Plastic case
Weight:
approx. 8.8 mg
Terminals:
Solderable per MIL-STD-750, method
2026
Packaging Codes/Options:
GS18/ 10 k per 13 " reel (8 mm tape), 10 k/box
GS08/ 3 k per 7 " reel (8 mm tape), 15 k/box
Marking:
MMBZ15VDC = TC5
MMBZ27VDC = TC7
MMBZ15VDA = TA5
MMBZ27VDA = TA7
Absolute Maximum Ratings
T
amb
= 25 擄C, unless otherwise specified
Parameter
Peak power dissipation
Power dissipation
on FR-5 Board
2)
1)
Test condition
T
amb
= 25 擄C
Derate above 25 擄C
3)
Symbol
P
PK
P
tot
P
tot
Value
40
4)
Unit
W
mW
mW/擄C
mW
mW/擄C
225
1.8
300
2.4
Power dissipation
on Alumina Substrate
1)
2)
3)
4)
T
amb
= 25 擄C
Derate above 25 擄C
Nonrepetitive current pulse per Figure 2 and derate above T
amb
= 25 擄C per Figure 3.
FR-5 = 1.0 x 0.75 x 0.62 in.
Alumina = 0.4 x 0.3 x 0.024 in., 99.5 % alumina.
The MMBZ6V8DC/A is rated at 24 V.
Thermal Characteristics
T
amb
= 25 擄C, unless otherwise specified
Parameter
Thermal resistance junction to ambiant air
Operating and storage temperature range
Test condition
Symbol
R
thJA
T
j
, T
stg
Value
556
- 55 to + 150
Unit
擄C/W
擄C
Document Number 85808
Rev. 1.4, 08-Jul-04
www.vishay.com
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