BZX55-Series
www.vishay.com Vishay Semiconductors
Rev. 1.8, 11-Mar-2019 1Document Number: 85604
For technical questions within your region: DiodesAmericas@vishay.com, DiodesAsia@vishay.com, DiodesEurope@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
Small Signal Zener Diodes
DESIGN SUPPORT TOOLS AVAILABLE
FEATURES
• Very sharp reverse characteristic
• Low reverse current level
• Very high stability
•Low noise
• AEC-Q101 qualified
• Material categorization:
for definitions of compliance please see
www.vishay.com/doc?99912
APPLICATIONS
• Voltage stabilization
PRIMARY CHARACTERISTICS
PARAMETER VALUE UNIT
VZ range nom. 2.4 to 75 V
Test current IZT 2.5; 5 mA
VZ specification Pulse current
Circuit configuration Single
3
3
D
D
3
D
3D Models
ORDERING INFORMATION
DEVICE NAME ORDERING CODE TAPED UNITS PER REEL MINIMUM ORDER QUANTITY
BZX55-series BZX55-series-TR 10 000 per 13" reel 30 000/box
BZX55-series BZX55-series-TAP 10 000 per ammopack
(52 mm tape) 30 000/box
PACKAGE
PACKAGE NAME WEIGHT MOLDING COMPOUND
FLAMMABILITY RATING
MOISTURE SENSITIVITY
LEVEL SOLDERING CONDITIONS
DO-35 (DO-204AH) 125 mg UL 94 V-0 MSL level 1
(according J-STD-020) Peak temperature max. 260 °C
ABSOLUTE MAXIMUM RATINGS (Tamb = 25 °C, unless otherwise specified)
PARAMETER TEST CONDITION SYMBOL VALUE UNIT
Power dissipation l = 4 mm, TL = 25 °C Ptot 500 mW
Zener current IZPtot/VZmA
Junction to ambient air l = 4 mm, TL = constant RthJA 300 K/W
Junction temperature Tj175 °C
Storage temperature range Tstg -65 to +175 °C
Forward voltage (max.) IF = 200 mA VF1.5 V
BZX55-Series
www.vishay.com Vishay Semiconductors
Rev. 1.8, 11-Mar-2019 2Document Number: 85604
For technical questions within your region: DiodesAmericas@vishay.com, DiodesAsia@vishay.com, DiodesEurope@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
ELECTRICAL CHARACTERISTICS (Tamb = 25 °C, unless otherwise specified)
PART NUMBER
ZENER VOLTAGE
RANGE
TEST
CURRENT
REVERSE LEAKAGE
CURRENT
DYNAMIC
RESISTANCE
TEMPERATURE
COEFFICIENT
VZ at IZT1 IZT1 IZT2
IR at VRZZ at IZT1 ZZK at IZT2
TKVZ
Tamb =
25 °C
Tamb =
150 °C f = 1 kHz
VmA μA V%/K
MIN. NOM. MAX. MAX. MAX. MIN. MAX.
BZX55C2V4 2.28 2.4 2.56 5 1 < 50 < 100 1 < 85 < 600 - 0.09 - 0.06
BZX55C2V7 2.5 2.7 2.9 5 1 < 10 < 50 1 < 85 < 600 - 0.09 - 0.06
BZX55C3V0 2.8 3.0 3.2 5 1 < 4 < 40 1 < 85 < 600 - 0.08 - 0.05
BZX55C3V3 3.1 3.3 3.5 5 1 < 2 < 40 1 < 85 < 600 - 0.08 - 0.05
BZX55C3V6 3.4 3.6 3.8 5 1 < 2 < 40 1 < 85 < 600 - 0.08 - 0.05
BZX55C3V9 3.7 3.9 4.1 5 1 < 2 < 40 1 < 85 < 600 - 0.08 - 0.05
BZX55C4V3 4 4.3 4.6 5 1 < 1 < 20 1 < 75 < 600 - 0.06 - 0.03
BZX55C4V7 4.4 4.7 5 5 1 < 0.5 < 10 1 < 60 < 600 - 0.05 0.02
BZX55C5V1 4.8 5.1 5.4 5 1 < 0.1 < 2 1 < 35 < 550 - 0.02 0.02
BZX55C5V6 5.2 5.6 6 5 1 < 0.1 < 2 1 < 25 < 450 - 0.05 0.05
BZX55C6V2 5.8 6.2 6.6 5 1 < 0.1 < 2 2 < 10 < 200 0.03 0.06
BZX55C6V8 6.4 6.8 7.2 5 1 < 0.1 < 2 3 < 8 < 150 0.03 0.07
BZX55C7V5 7 7.5 7.9 5 1 < 0.1 < 2 5 < 7 < 50 0.03 0.07
BZX55C8V2 7.7 8.2 8.7 5 1 < 0.1 < 2 6.2 < 7 < 50 0.03 0.08
BZX55C9V1 8.5 9.1 9.6 5 1 < 0.1 < 2 6.8 < 10 < 50 0.03 0.09
BZX55C10 9.4 10 10.6 5 1 < 0.1 < 2 7.5 < 15 < 70 0.03 0.1
BZX55C11 10.4 11 11.6 5 1 < 0.1 < 2 8.2 < 20 < 70 0.03 0.11
BZX55C12 11.4 12 12.7 5 1 < 0.1 < 2 9.1 < 20 < 90 0.03 0.11
BZX55C13 12.4 13 14.1 5 1 < 0.1 < 2 10 < 26 < 110 0.03 0.11
BZX55C15 13.8 15 15.6 5 1 < 0.1 < 2 11 < 30 < 110 0.03 0.11
BZX55C16 15.3 16 17.1 5 1 < 0.1 < 2 12 < 40 < 170 0.03 0.11
BZX55C18 16.8 18 19.1 5 1 < 0.1 < 2 13 < 50 < 170 0.03 0.11
BZX55C20 18.8 20 21.2 5 1 < 0.1 < 2 15 < 55 < 220 0.03 0.11
BZX55C22 20.8 22 23.3 5 1 < 0.1 < 2 16 < 55 < 220 0.04 0.12
BZX55C24 22.8 24 25.6 5 1 < 0.1 < 2 18 < 80 < 220 0.04 0.12
BZX55C27 25.1 27 28.9 5 1 < 0.1 < 2 20 < 80 < 220 0.04 0.12
BZX55C30 28 30 32 5 1 < 0.1 < 2 22 < 80 < 220 0.04 0.12
BZX55C33 31 33 35 5 1 < 0.1 < 2 24 < 80 < 220 0.04 0.12
BZX55C36 34 36 38 5 1 < 0.1 < 2 27 < 80 < 220 0.04 0.12
BZX55C39 37 39 41 2.5 0.5 < 0.1 < 5 30 < 90 < 500 0.04 0.12
BZX55C43 40 43 46 2.5 0.5 < 0.1 < 5 33 < 90 < 600 0.04 0.12
BZX55C47 44 47 50 2.5 0.5 < 0.1 < 5 36 < 110 < 700 0.04 0.12
BZX55C51 48 51 54 2.5 0.5 < 0.1 < 10 39 < 125 < 700 0.04 0.12
BZX55C56 52 56 60 2.5 0.5 < 0.1 < 10 43 < 135 < 1000 0.04 0.12
BZX55C62 58 62 66 2.5 0.5 < 0.1 < 10 47 < 150 < 1000 0.04 0.12
BZX55C68 64 68 72 2.5 0.5 < 0.1 < 10 51 < 200 < 1000 0.04 0.12
BZX55C75 70 75 79 2.5 0.5 < 0.1 < 10 56 < 250 < 1500 0.04 0.12
BZX55-Series
www.vishay.com Vishay Semiconductors
Rev. 1.8, 11-Mar-2019 3Document Number: 85604
For technical questions within your region: DiodesAmericas@vishay.com, DiodesAsia@vishay.com, DiodesEurope@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
ELECTRICAL CHARACTERISTICS (Tamb = 25 °C, unless otherwise specified)
PART NUMBER
ZENER VOLTAGE
RANGE
TEST
CURRENT
REVERSE LEAKAGE
CURRENT
DYNAMIC
RESISTANCE
TEMPERATURE
COEFFICIENT
VZ at IZT1 IZT1 IZT2
IR at VRZZ at IZT1 ZZK at IZT2
TKVZ
Tamb =
25 °C
Tamb =
150 °C f = 1 kHz
VmA μA V%/K
MIN. NOM. MAX. MAX. MAX. MIN. MAX.
BZX55B2V4 2.35 2.4 2.45 5 1 < 50 < 100 1 < 85 < 600 - 0.09 - 0.06
BZX55B2V7 2.64 2.7 2.76 5 1 < 10 < 50 1 < 85 < 600 - 0.09 - 0.06
BZX55B3V0 2.94 3.0 3.06 5 1 < 4 < 40 1 < 90 < 600 - 0.08 - 0.05
BZX55B3V3 3.24 3.3 3.36 5 1 < 2 < 40 1 < 90 < 600 - 0.08 - 0.05
BZX55B3V6 3.52 3.6 3.68 5 1 < 2 < 40 1 < 90 < 600 - 0.08 - 0.05
BZX55B3V9 3.82 3.9 3.98 5 1 < 2 < 40 1 < 90 < 600 - 0.08 - 0.05
BZX55B4V3 4.22 4.3 4.38 5 1 < 1 < 20 1 < 90 < 600 - 0.06 - 0.03
BZX55B4V7 4.6 4.7 4.8 5 1 < 0.5 < 10 1 < 80 < 600 - 0.05 0.02
BZX55B5V1 5 5.1 5.2 5 1 < 0.1 < 2 1 < 60 < 550 - 0.02 0.02
BZX55B5V6 5.48 5.6 5.72 5 1 < 0.1 < 2 1 < 40 < 450 - 0.05 0.05
BZX55B6V2 6.08 6.2 6.32 5 1 < 0.1 < 2 2 < 10 < 200 0.03 0.06
BZX55B6V8 6.66 6.8 6.94 5 1 < 0.1 < 2 3 < 8 < 150 0.03 0.07
BZX55B7V5 7.35 7.5 7.65 5 1 < 0.1 < 2 5 < 7 < 50 0.03 0.07
BZX55B8V2 8.04 8.2 8.36 5 1 < 0.1 < 2 6.2 < 7 < 50 0.03 0.08
BZX55B9V1 8.92 9.1 9.28 5 1 < 0.1 < 2 6.8 < 10 < 50 0.03 0.09
BZX55B10 9.8 10 10.2 5 1 < 0.1 < 2 7.5 < 15 < 70 0.03 0.1
BZX55B11 10.78 11 11.22 5 1 < 0.1 < 2 8.2 < 20 < 70 0.03 0.11
BZX55B12 11.76 12 12.24 5 1 < 0.1 < 2 9.1 < 20 < 90 0.03 0.11
BZX55B13 12.74 13 13.26 5 1 < 0.1 < 2 10 < 26 < 110 0.03 0.11
BZX55B15 14.7 15 15.3 5 1 < 0.1 < 2 11 < 30 < 110 0.03 0.11
BZX55B16 15.7 16 16.3 5 1 < 0.1 < 2 12 < 40 < 170 0.03 0.11
BZX55B18 17.64 18 18.36 5 1 < 0.1 < 2 13 < 50 < 170 0.03 0.11
BZX55B20 19.6 20 20.4 5 1 < 0.1 < 2 15 < 55 < 220 0.03 0.11
BZX55B22 21.55 22 22.45 5 1 < 0.1 < 2 16 < 55 < 220 0.04 0.12
BZX55B24 23.5 24 24.5 5 1 < 0.1 < 2 18 < 80 < 220 0.04 0.12
BZX55B27 26.4 27 27.6 5 1 < 0.1 < 2 20 < 80 < 220 0.04 0.12
BZX55B30 29.4 30 30.6 5 1 < 0.1 < 2 22 < 80 < 220 0.04 0.12
BZX55B33 32.4 33 33.6 5 1 < 0.1 < 2 24 < 80 < 220 0.04 0.12
BZX55B36 35.3 36 36.7 5 1 < 0.1 < 2 27 < 80 < 220 0.04 0.12
BZX55B39 38.2 39 39.8 2.5 0.5 < 0.1 < 5 30 < 90 < 500 0.04 0.12
BZX55B43 42.1 43 43.9 2.5 0.5 < 0.1 < 5 33 < 90 < 600 0.04 0.12
BZX55B47 46.1 47 47.9 2.5 0.5 < 0.1 < 5 36 < 110 < 700 0.04 0.12
BZX55B51 50 51 52 2.5 0.5 < 0.1 < 10 39 < 125 < 700 0.04 0.12
BZX55B56 54.9 56 57.1 2.5 0.5 < 0.1 < 10 43 < 135 < 1000 0.04 0.12
BZX55B62 60.8 62 63.2 2.5 0.5 < 0.1 < 10 47 < 150 < 1000 0.04 0.12
BZX55B68 66.6 68 69.4 2.5 0.5 < 0.1 < 10 51 < 200 < 1000 0.04 0.12
BZX55B75 73 75 76.5 2.5 0.5 < 0.1 < 10 56 < 250 < 1500 0.04 0.12
BZX55-Series
www.vishay.com Vishay Semiconductors
Rev. 1.8, 11-Mar-2019 4Document Number: 85604
For technical questions within your region: DiodesAmericas@vishay.com, DiodesAsia@vishay.com, DiodesEurope@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
BASIC CHARACTERISTICS (Tamb = 25 °C, unless otherwise specified)
Fig. 1 - Thermal Resistance vs. Lead Length
Fig. 2 - Total Power Dissipation vs. Ambient Temperature
Fig. 3 - Typical Change of Working Voltage under Operating
Conditions at Tamb = 25 °C
Fig. 4 - Typical Change of Working Voltage vs.
Junction Temperature
Fig. 5 - Temperature Coefficient of VZ vs. Z-Voltage
Fig. 6 - Diode Capacitance vs. Z-Voltage
95 9611
0 5 10 15
0
100
200
300
400
500
20
ll
RthJA - Therm. Resist. Junction Ambient (K/W)
I - Lead Length (mm)
TL = constant
0 120 160
0
100
300
400
500
600
Ptot - Total Power Dissipation (mW)
Tamb - Ambient Temperature (°C)
200
95 9602
200
80
40
10 15 20
1
10
100
1000
V
Z
- Voltage Change (mV)
V
Z
- Z-Voltage (V)
25
95 9598
IZ = 5 mA
05
- 60 60 120 180
0.8
0.9
1.0
1.1
1.2
1.3
V
Ztn
- Relative Voltage Change
Tj - Junction Temperature (°C)
240
95 9599
0
VZtn = VZt/VZ (25 °C)
0
TK
VZ
= 10 x 10-4/K
8 x 10-4/K
2 x 10-4/K
6 x 10-4/K
4 x 10-4/K
- 4 x 10-4/K
- 2 x 10-4/K
- 5
0
5
10
15
VZ - Z-Voltage (V)
95 9600
IZ = 5 mA
0 10 203040 50
TKVZ - Temperature Coefficient
of VZ (10-4/K)
10 15
0
50
100
150
200
C
D
- Diode Capacitance (pF)
V
Z
- Z-Voltage (V)
25
95 9601
20
T
j
= 25 °C
V
R
= 2 V
05
BZX55-Series
www.vishay.com Vishay Semiconductors
Rev. 1.8, 11-Mar-2019 5Document Number: 85604
For technical questions within your region: DiodesAmericas@vishay.com, DiodesAsia@vishay.com, DiodesEurope@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. 7 - Forward Current vs. Forward Voltage
Fig. 8 - Z-Current vs. Z-Voltage
Fig. 9 - Z-Current vs. Z-Voltage
Fig. 10 - Differential Z-Resistance vs. Z-Voltage
Fig. 11 - Thermal Response
0 0.2 0.4 0.6 0.8
0.001
0.01
0.1
1
10
100
1.0
959605
IF - Forward Current (mA)
VF - Forward Voltage (V)
Tj = 25 °C
820
95 9604
0
20
40
60
80
100
IZ - Z-Current (mA)
Ptot = 500 mW
Tamb = 25 °C
046 12
VZ - Z-Voltage (V)
15 20 25 30
0
10
20
30
40
50
IZ - Z-Current (mA)
VZ - Z-Voltage (V)
35
95 9607
Ptot = 500 mW
Tamb = 25 °C
0 101520
1
10
100
1000
25
95 9606
Tj = 25 °C
IZ = 1 mA
5 mA
10 mA
V
Z
- Z-Voltage (V)
r
Z
- Differential Z-Resistance (Ω)
5
1
10
100
1000
Z
thp
- Thermal Resistance for Pulse Cond. (K/W)
t
p
- Pulse Length (ms)
95 9603
10-1 100101102
t
p
/T = 0.5
t
p
/T = 0.2
t
p
/T = 0.1
t
p
/T = 0.05
t
p
/T = 0.02
t
p
/T = 0.01
Single Pulse R
thJA
= 300 K/W
T = T
j max.
- T
amb
i
ZM
= (- V
Z
+ (V
Z
2
+ 4r
zj
x T/Z
thp
)
1/2
)/(2r
zj
)
BZX55-Series
www.vishay.com Vishay Semiconductors
Rev. 1.8, 11-Mar-2019 6Document Number: 85604
For technical questions within your region: DiodesAmericas@vishay.com, DiodesAsia@vishay.com, DiodesEurope@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
PACKAGE DIMENSIONS in millimeters (inches): DO-35 (DO-204AH)
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]
Legal Disclaimer Notice
www.vishay.com Vishay
Revision: 01-Jan-2019 1Document Number: 91000
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.
© 2019 VISHAY INTERTECHNOLOGY, INC. ALL RIGHTS RESERVED
