SM5A27
Vishay General Semiconductor
Surface Mount PAR
®
Transient Voltage Suppressors
High Temperature Stability and High Reliability Conditions
FEATURES
• Junction passivation optimized design passivated
anisotropic rectifier technology
• T
J
= 175 °C capability suitable for high reliability
and automotive requirement
• Low leakage current
• Low forward voltage drop
• High surge capability
• Meets ISO7637-2 surge specification
• Meets MSL level 1, per J-STD-020, LF maximum peak of
245 °C
• AEC-Q101 qualified
• Compliant to RoHS Directive 2002/95/EC and in
accordance to WEEE 2002/96/EC
DO-218AB
PRIMARY CHARACTERISTICS
V
BR
P
PPM
(10 x 1000 μs)
P
D
I
RSM
I
FSM
T
J
max.
27 V
3600 W
5W
70 A
500 A
175 °C
TYPICAL APPLICATIONS
Use in sensitive electronics protection against voltage
transients induced by inductive load switching and lighting,
especially for automotive load dump protection application.
MECHANICAL DATA
Case:
DO-218AB
Molding compound meets UL 94 V-0 flammability rating
Base P/NHE3 - RoHS compliant, AEC-Q101 qualified
Terminals:
Matte tin plated leads, solderable
J-STD-002 and JESD 22-B102
HE3 suffix meets JESD 201 class 2 whisker test
Polarity:
Heatsink is anode
per
MAXIMUM RATINGS
(T
A
= 25 °C unless otherwise noted)
PARAMETER
Peak pulse power dissipation with 10/1000 μs waveform
Power dissipation on infinite heatsink at T
C
= 25 °C (fig. 1)
Non-repetitive peak reverse surge current for 10 μs/10 ms exponentially
decaying waveform
Maximum working stand-off voltage
Peak forward surge current 8.3 ms single half sine-wave
Operating junction and storage temperature range
SYMBOL
P
PPM
P
D
I
RSM
V
WM
I
FSM
T
J
, T
STG
VALUE
3600
5.0
70
22.0
500
- 55 to + 175
UNIT
W
W
A
V
A
°C
Document Number: 88381
Revision: 18-Apr-11
For technical questions within your region, please contact one of the following:
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182
This document is subject to change without notice.
THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
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SM5A27
Vishay General Semiconductor
ELECTRICAL CHARACTERISTICS
(T
A
= 25 °C unless otherwise noted)
PARAMETER
Reverse Zener voltage
Zener voltage temperature coefficient
Clamping voltage for 10 μs/10 ms
exponentially decaying waveform
Instantaneous forward voltage
TEST CONDITIONS
I
Z
= 10 mA
I
Z
= 10 mA
I
PP
= 55 A
I
F
= 6.0 A
I
F
= 100 A
Reverse leakage current
Rated V
WM
T
J
= 25 °C
T
J
= 175 °C
SYMBOL
V
Z
V
ZTC
V
C
V
F (1)
MIN.
24.0
-
-
-
-
-
I
R
-
TYP.
-
-
-
-
0.95
-
-
MAX.
30.0
36
40.0
1.0
V
-
0.2
μA
10.0
UNIT
V
mV/°C
V
Note
(1)
Measured on a 300 μs square pulse width
THERMAL CHARACTERISTICS
(T
A
= 25 °C unless otherwise noted)
PARAMETER
Typical thermal resistance, junction to case
SYMBOL
R
JC
VALUE
1.0
UNIT
°C/W
ORDERING INFORMATION
(Example)
PREFERRED P/N
SM5A27HE3/2D
(1)
Note
(1)
AEC-Q101 qualified
UNIT WEIGHT (g)
2.505
PREFERRED PACKAGE CODE
2D
BASE QUANTITY
750
DELIVERY MODE
13" diameter plastic tape and reel,
anode towards the sprocket hole
RATINGS AND CHARACTERISTICS CURVES
(T
A
= 25 °C unless otherwise noted)
8.0
3000
2500
Power Dissipation (W)
6.0
Load Dump Power (W)
2000
1500
1000
4.0
2.0
500
0
0
50
100
150
200
0
25
50
75
100
125
150
175
Case Temperature (°C)
Case Temperature (°C)
Fig. 1 - Power Derating Curve
Fig. 2 - Load Dump Power Characteristics
(10 ms Exponential Waveform)
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For technical questions within your region, please contact one of the following:
Document Number: 88381
DiodesAmericas@vishay.com, DiodesAsia@vishay.com, DiodesEurope@vishay.com
Revision: 18-Apr-11
This document is subject to change without notice.
THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc?91000
SM5A27
Vishay General Semiconductor
150
Instantaneous Reverse Current (μA)
t
r
= 10 μs
Peak Value
I
PPM
Input Peak Pulse Current (%)
T
J
= 25 °C
Pulse Width (t
d
) is
Defined as the Point
Where the Peak Current
Decays to 50 % of I
PPM
100
10
T
J
= 175 °C
100
1
Half Value - I
PP
I
PPM
2
50
0.1
0.01
T
J
= 25 °C
0.001
t
d
0
0
10
20
30
40
0.0001
5
20
35
50
65
80
95
t - Time (ms)
Percentage of V
BR
(%)
Fig. 3 - Pulse Waveform
Fig. 6 - Typical Reverse Characteristics
10 000
100
Transient Thermal Impedance (°C/W)
Reverse
Surge
Power (W)
10
R
θJA
1
R
θJC
0.1
1000
10
100
0.01
0.01
0.1
1
10
100
Pulse Width (ms) - ½ I
PP
Exponential Waveform
t - Pulse Width (s)
Fig. 4 - Reverse Power Capability
Fig. 7 - Typical Transient Thermal Impedance
100
Instantaneous Forward Current (A)
T
J
= 150 °C
10
1.0
T
J
= 25 °C
0.1
0.01
0.35
0.45
0.55
0.65
0.75
0.85
0.95
Instantaneous Forward Voltage (V)
Fig. 5 - Typical Instantaneous Forward Characteristics
Document Number: 88381
Revision: 18-Apr-11
For technical questions within your region, please contact one of the following:
www.vishay.com
DiodesAmericas@vishay.com, DiodesAsia@vishay.com, DiodesEurope@vishay.com
184
This document is subject to change without notice.
THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc?91000
SM5A27
Vishay General Semiconductor
PACKAGE OUTLINE DIMENSIONS
in inches (millimeters)
DO-218AB
0.628 (16.0)
0.592 (15.0)
0.539 (13.7)
0.524 (13.3)
0.116 (3.0)
0.093 (2.4)
0.413 (10.5) 0.342 (8.7)
0.374 (9.5) 0.327 (8.3)
Mounting Pad Layout
0.150 (3.8)
0.126 (3.2)
0.091 (2.3)
0.067 (1.7)
0.413 (10.5)
0.374 (9.5)
0.116 (3.0)
0.093 (2.4)
0.366 (9.3)
0.343 (8.7)
0.406 (10.3)
0.382 (9.7)
0.197 (5.0)
0.185 (4.7)
0.016 (0.4) MIN.
Lead 2/Metal Heatsink
Lead 1
0.366 (9.3)
0.343 (8.7)
0.606 (15.4)
0.583 (14.8)
0.138 (3.5)
0.098 (2.5)
0.028 (0.7)
0.020 (0.5)
0.098 (2.5)
0.059 (1.5)
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For technical questions within your region, please contact one of the following:
Document Number: 88381
DiodesAmericas@vishay.com, DiodesAsia@vishay.com, DiodesEurope@vishay.com
Revision: 18-Apr-11
This document is subject to change without notice.
THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc?91000
Legal Disclaimer Notice
Vishay
Disclaimer
ALL PRODUCT, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE TO IMPROVE
RELIABILITY, FUNCTION OR DESIGN OR OTHERWISE.
Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf (collectively,
“Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained in any datasheet or in any other
disclosure relating to any product.
Vishay makes no warranty, representation or guarantee regarding the suitability of the products for any particular purpose or
the continuing production of any product. To the maximum extent permitted by applicable law, Vishay disclaims (i) any and all
liability arising out of the application or use of any product, (ii) any and all liability, including without limitation special,
consequential or incidental damages, and (iii) any and all implied warranties, including warranties of fitness for particular
purpose, non-infringement and merchantability.
Statements regarding the suitability of products for certain types of applications are based on Vishay’s knowledge of typical
requirements that are often placed on Vishay products in generic applications. Such statements are not binding statements
about the suitability of products for a particular application. It is the customer’s responsibility to validate that a particular
product with the properties described in the product specification is suitable for use in a particular application. Parameters
provided in datasheets and/or specifications may vary in different applications and performance may vary over time. All
operating parameters, including typical parameters, must be validated for each customer application by the customer’s
technical experts. Product specifications do not expand or otherwise modify Vishay’s terms and conditions of purchase,
including but not limited to the warranty expressed therein.
Except as expressly indicated in writing, Vishay products are not designed for use in medical, life-saving, or life-sustaining
applications or for any other application in which the failure of the Vishay product could result in personal injury or death.
Customers using or selling Vishay products not expressly indicated for use in such applications do so at their own risk and agree
to fully indemnify and hold Vishay and its distributors harmless from and against any and all claims, liabilities, expenses and
damages arising or resulting in connection with such use or sale, including attorneys fees, even if such claim alleges that Vishay
or its distributor was negligent regarding the design or manufacture of the part. Please contact authorized Vishay personnel to
obtain written terms and conditions regarding products designed for such applications.
No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document or by
any conduct of Vishay. Product names and markings noted herein may be trademarks of their respective owners.
Document Number: 91000
Revision: 11-Mar-11
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