For technical questions within your region: DiodesAmericas@vishay.com
3
, DiodesAsia@vishay.com, DiodesEurope@vishay.com
Document Number: 85604
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
Page 4
www.vishay.com
95 9611
051015
0
100
200
300
400
500
20
ll
R
thJA
- Therm. Resist. Junction Ambient (K/W)
I - Lead Length (mm)
T
L
= constant
101520
1
10
100
1000
V
Z
- Voltage Change (mV)
VZ - Z-Voltage (V)
25
95 9598
Tj = 25 °C
I
Z
= 5 mA
0
5
1015
0
50
100
150
200
C
D
- Diode Capacitance (pF)
VZ - Z-Voltage (V)
25
95 9601
20
Tj = 25 °C
VR = 2 V
0
5
BZX55-Series
Vishay Semiconductors
BASIC CHARACTERISTICS (T
Fig. 1 - Thermal Resistance vs. Lead Length
600
500
400
300
200
100
- Total Power Dissipation (mW)
tot
P
0
0120160
95 9602
T
amb
80
40
- Ambient Temperature (°C)
= 25 °C, unless otherwise specified)
amb
200
1.3
V
= VZt/VZ (25 °C)
Ztn
1.2
1.1
1.0
0.9
- Relative Voltage Change
Ztn
V
0.8
- 6060120180
95 9599
Tj - Junction Temperature (°C)
TK
= 10 x 10-4/K
VZ
0
8 x 10
6 x 10
4 x 10
2 x 10
0
- 2 x 10-4/K
- 4 x 10-4/K
-4
-4
-4
-4
/K
/K
/K
/K
240
Fig. 4 - Typical Change of Working Voltage vs.
Junction Temperature
15
10
/K)
-4
5
(10
Z
of V
0
- Temperature Coefficient
VZ
IZ = 5 mA
TK
- 5
0 10 203040 50
95 9600
VZ - Z-Voltage (V)
Fig. 2 - Total Power Dissipation vs. Ambient Temperature
Fig. 3 - Typical Change of Working Voltage under Operating
Rev. 1.7, 06-May-13
For technical questions within your region: DiodesAmericas@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
Conditions at T
Fig. 5 - Temperature Coefficient of V
Fig. 6 - Diode Capacitance vs. Z-Voltage
= 25 °C
amb
4
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ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
vs. Z-Voltage
Z
Document Number: 85604
Page 5
www.vishay.com
00.20.40.60.8
0.001
0.01
0.1
1
10
100
1.0
95 9605
I
F
- Forward Current (mA)
VF - Forward Voltage (V)
Tj = 25 °C
8
20
95 9604
0
20
40
60
80
100
I
Z
- Z-Current (mA)
P
tot
= 500 mW
T
amb
= 25 °C
046
12
VZ - Z-Voltage (V)
0101520
1
10
100
1000
25
95 9606
Tj = 25 °C
IZ = 1 mA
5 mA
10 mA
VZ - Z-Voltage (V)
r
Z
- Differential Z-Resistance (Ω)
5
1
10
100
1000
Z
thp
- Thermal Resistance for Pulse Cond. (K/W)
tp - Pulse Length (ms)
95 9603
10
-1
10
0
10
1
10
2
tp/T = 0.5
tp/T = 0.2
tp/T = 0.1
tp/T = 0.05
tp/T = 0.02
tp/T = 0.01
Single Pulse
R
thJA
= 300 K/W
T = T
j max.
- T
amb
iZM = (- VZ + (V
Z
2
+ 4rzj x T/Z
thp
)
1/2
)/(2rzj)
50
40
30
20
- Z-Current (mA)
Z
I
10
BZX55-Series
Vishay Semiconductors
P
= 500 mW
tot
T
= 25 °C
amb
Fig. 7 - Forward Current vs. Forward Voltage
Fig. 8 - Z-Current vs. Z-Voltage
0
15202530
95 9607
VZ - Z-Voltage (V)
35
Fig. 9 - Z-Current vs. Z-Voltage
Fig. 10 - Differential Z-Resistance vs. Z-Voltage
Rev. 1.7, 06-May-13
For technical questions within your region: DiodesAmericas@vishay.com
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
Fig. 11 - Thermal Response
5
Document Number: 85604
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Page 6
www.vishay.com
94 9366
Rev. 6 - Date: 19. December 2011
Document no.: SB-V-3906.04-031(4)
26 min. [1.024]3.9 max. [0.154]26 min. [1.024]
Cathode Identication
1.7 [0.067]
1.3 [0.050]
3.1 min. [0.120]
Ø 0.6 max. [0.024]
Ø 0.4 min. [0.015]
PACKAGE DIMENSIONS in millimeters (inches): DO-35
BZX55-Series
Vishay Semiconductors
Rev. 1.7, 06-May-13
For technical questions within your region: DiodesAmericas@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
6
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ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
Document Number: 85604
Page 7
Legal Disclaimer Notice
www.vishay.com
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. 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.
Material Category Policy
Vishay Intertechnology, Inc. hereby certifies that all its products that are identified as RoHS-Compliant fulfill the
definitions and restrictions defined under Directive 2011/65/EU of The European Parliament and of the Council
of June 8, 2011 on the restriction of the use of certain hazardous substances in electrical and electronic equipment
(EEE) - recast, unless otherwise specified as non-compliant.
Please note that some Vishay documentation may still make reference to RoHS Directive 2002/95/EC. We confirm that
all the products identified as being compliant to Directive 2002/95/EC conform to Directive 2011/65/EU.
Vishay Intertechnology, Inc. hereby certifies that all its products that are identified as Halogen-Free follow Halogen-Free
requirements as per JEDEC JS709A standards. Please note that some Vishay documentation may still make reference
to the IEC 61249-2-21 definition. We confirm that all the products identified as being compliant to IEC 61249-2-21
conform to JEDEC JS709A standards.
Revision: 02-Oct-12
1
Document Number: 91000
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