BZX55-Series

www.vishay.com
Vishay Semiconductors
Small Signal Zener Diodes
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

DESIGN SUPPORT TOOLS AVAILABLE APPLICATIONS

• Voltage stabilization
3D 3D
3D Models

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

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
10 000 per ammopack
BZX55-series BZX55-series-TAP 30 000/box
(52 mm tape)

PACKAGE
MOLDING COMPOUND MOISTURE SENSITIVITY
PACKAGE NAME WEIGHT SOLDERING CONDITIONS
FLAMMABILITY RATING LEVEL
MSL level 1
DO-35 (DO-204AH) 125 mg UL 94 V-0 Peak temperature max. 260 °C
(according J-STD-020)

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 IZ Ptot/VZ mA
Junction to ambient air l = 4 mm, TL = constant RthJA 300 K/W
Junction temperature Tj 175 °C
Storage temperature range Tstg -65 to +175 °C
Forward voltage (max.) IF = 200 mA VF 1.5 V

Rev. 1.8, 11-Mar-2019 1 Document 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
 BZX55-Series
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Vishay Semiconductors

ELECTRICAL CHARACTERISTICS (Tamb = 25 °C, unless otherwise specified)

ZENER VOLTAGE TEST REVERSE LEAKAGE DYNAMIC TEMPERATURE
RANGE CURRENT CURRENT RESISTANCE COEFFICIENT
IR at VR ZZ at IZT1 ZZK at IZT2
PART NUMBER VZ at IZT1 IZT1 IZT2 Tamb = Tamb = TKVZ
f = 1 kHz
25 °C 150 °C
V mA 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

Rev. 1.8, 11-Mar-2019 2 Document 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
 BZX55-Series
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Vishay Semiconductors

ELECTRICAL CHARACTERISTICS (Tamb = 25 °C, unless otherwise specified)

ZENER VOLTAGE TEST REVERSE LEAKAGE DYNAMIC TEMPERATURE
RANGE CURRENT CURRENT RESISTANCE COEFFICIENT
IR at VR ZZ at IZT1 ZZK at IZT2
PART NUMBER VZ at IZT1 IZT1 IZT2 Tamb = Tamb = TKVZ
f = 1 kHz
25 °C 150 °C
V mA 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

Rev. 1.8, 11-Mar-2019 3 Document 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
 BZX55-Series
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Vishay Semiconductors
BASIC CHARACTERISTICS (Tamb = 25 °C, unless otherwise specified)
RthJA - Therm. Resist. Junction Ambient (K/W)

500 1.3
VZtn = VZt/VZ (25 °C)

VZtn - Relative Voltage Change

400 1.2
TKVZ = 10 x 10-4/K
8 x 10-4/K
6 x 10-4/K
300 1.1
4 x 10-4/K
l l 2 x 10-4/K

200 1.0 0
- 2 x 10-4/K
- 4 x 10-4/K
100 0.9
TL = constant
0 0.8
0 5 10 15 20 - 60 0 60 120 180 240
95 9599 Tj - Junction Temperature (°C)
I - Lead Length (mm) 95 9611

Fig. 1 - Thermal Resistance vs. Lead Length Fig. 4 - Typical Change of Working Voltage vs.
Junction Temperature

600 15
Ptot - Total Power Dissipation (mW)

TKVZ - Temperature Coefficient

500
10
400 of VZ (10-4/K)

300 5

IZ = 5 mA
200
0
100

0 -5
0 40 80 120 160 200 0 10 20 30 40 50
95 9602 Tamb - Ambient Temperature (°C) 95 9600 VZ - Z-Voltage (V)

Fig. 2 - Total Power Dissipation vs. Ambient Temperature Fig. 5 - Temperature Coefficient of VZ vs. Z-Voltage

1000 200
CD - Diode Capacitance (pF)
VZ - Voltage Change (mV)

150
100 VR = 2 V
Tj = 25 °C
100
IZ = 5 mA
10
50

1 0
0 5 10 15 20 25 0 5 10 15 20 25
95 9598 VZ - Z-Voltage (V) 95 9601 VZ - Z-Voltage (V)

Fig. 3 - Typical Change of Working Voltage under Operating Fig. 6 - Diode Capacitance vs. Z-Voltage
Conditions at Tamb = 25 °C

Rev. 1.8, 11-Mar-2019 4 Document 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
 BZX55-Series
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Vishay Semiconductors

100 50

Ptot = 500 mW
IF - Forward Current (mA)

10 40
Tamb = 25 °C

IZ - Z-Current (mA)
Tj = 25 °C
1 30

0.1 20

0.01 10

0.001 0
0 0.2 0.4 0.6 0.8 1.0 15 20 25 30 35
959605 VF - Forward Voltage (V) 95 9607 VZ - Z-Voltage (V)

Fig. 7 - Forward Current vs. Forward Voltage Fig. 9 - Z-Current vs. Z-Voltage

100 1000

rZ - Differential Z-Resistance (Ω)

80 IZ = 1 mA
Ptot = 500 mW
IZ - Z-Current (mA)

Tamb = 25 °C 100
60

5 mA
40
10 10 mA

20

Tj = 25 °C
0 1
0 4 6 8 12 20 0 5 10 15 20 25
95 9604 VZ - Z-Voltage (V) 95 9606 VZ - Z-Voltage (V)

Fig. 8 - Z-Current vs. Z-Voltage Fig. 10 - Differential Z-Resistance vs. Z-Voltage

Zthp - Thermal Resistance for Pulse Cond. (K/W)

1000

tp/T = 0.5
100
tp/T = 0.2

Single Pulse RthJA = 300 K/W

T = Tj max. - Tamb
10 tp/T = 0.01
tp/T = 0.1 tp/T = 0.02

tp/T = 0.05
iZM = (- VZ + (VZ2 + 4rzj x T/Zthp) 1/2)/(2rzj)
1
10-1 100 101 102
tp - Pulse Length (ms) 95 9603

Fig. 11 - Thermal Response

Rev. 1.8, 11-Mar-2019 5 Document Number: 85604

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THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
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Vishay Semiconductors
PACKAGE DIMENSIONS in millimeters (inches): DO-35 (DO-204AH)

Cathode Identification

Ø 0.6 max. [0.024]

Ø 0.4 min. [0.015]

1.7 [0.067]

1.3 [0.050]
26 min. [1.024] 3.9 max. [0.154] 26 min. [1.024]
3.1 min. [0.120]

Rev. 6 - Date: 19. December 2011

Document no.: SB-V-3906.04-031(4)
94 9366

Rev. 1.8, 11-Mar-2019 6 Document 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
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Disclaimer

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“Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained in any datasheet or in any other
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statements about the suitability of products for a particular application. It is the customer’s responsibility to validate that a
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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
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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
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© 2019 VISHAY INTERTECHNOLOGY, INC. ALL RIGHTS RESERVED

Revision: 01-Jan-2019 1 Document Number: 91000

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BZX55C22-TR BZX55C6V8-TR BZX55C15-TR BZX55C4V7-TAP BZX55C3V3-TR BZX55B10-TAP BZX55B11-
TAP BZX55B12-TAP BZX55B13-TAP BZX55B15-TAP BZX55B16-TAP BZX55B18-TAP BZX55B2V4-TAP
BZX55B2V7-TAP BZX55B20-TAP BZX55B22-TAP BZX55B24-TAP BZX55B27-TAP BZX55B3V0-TAP BZX55B3V3-
TAP BZX55B3V6-TAP BZX55B3V9-TAP BZX55B30-TAP BZX55B33-TAP BZX55B36-TAP BZX55B39-TAP
BZX55B4V3-TAP BZX55B4V7-TAP BZX55B43-TAP BZX55B47-TAP BZX55B5V1-TAP BZX55B5V6-TAP
BZX55B51-TAP BZX55B56-TAP BZX55B6V2-TAP BZX55B6V8-TAP BZX55B62-TAP BZX55B68-TAP BZX55B7V5-
TAP BZX55B75-TAP BZX55B8V2-TAP BZX55B9V1-TAP BZX55C10-TAP BZX55C11-TAP BZX55C12-TAP
BZX55C13-TAP BZX55C15-TAP BZX55C16-TAP BZX55C18-TAP BZX55C2V4-TAP BZX55C2V7-TAP BZX55C20-
TAP BZX55C22-TAP BZX55C24-TAP BZX55C27-TAP BZX55C3V0-TAP BZX55C3V3-TAP BZX55C3V6-TAP
BZX55C3V9-TAP BZX55C30-TAP BZX55C33-TAP BZX55C36-TAP BZX55C39-TAP BZX55C4V3-TAP BZX55C43-
TAP BZX55C47-TAP BZX55C5V1-TAP BZX55C5V6-TAP BZX55C51-TAP BZX55C56-TAP BZX55C6V2-TAP
BZX55C6V8-TAP BZX55C62-TAP BZX55C68-TAP BZX55C7V5-TAP BZX55C75-TAP BZX55C8V2-TAP
BZX55C9V1-TAP BZX55B10-TR BZX55B11-TR BZX55B12-TR BZX55B13-TR BZX55B15-TR BZX55B16-TR
BZX55B18-TR BZX55B2V4-TR BZX55B2V7-TR BZX55B20-TR BZX55B22-TR BZX55B24-TR BZX55B27-TR
BZX55B3V0-TR BZX55B3V3-TR BZX55B3V6-TR BZX55B3V9-TR BZX55B30-TR BZX55B33-TR BZX55B36-TR
BZX55B39-TR BZX55B4V3-TR