Datasheets
1SMB5943BT3G by:

3.0 W Zener Diode Voltage Regulator 56 V, SMB, 2500-REEL

Part Details for 1SMB5943BT3G by onsemi

Results Overview of 1SMB5943BT3G by onsemi

Tip: Data for a part may vary between manufacturers. You can filter for manufacturers on the top of the page next to the part image and part number.

Applications Energy and Power Systems Automotive

1SMB5943BT3G Information

1SMB5943BT3G by onsemi is a Zener Diode.
Zener Diodes are under the broader part category of Diodes.

A diode is a electrical part that can control the direction in which the current flows in a device. Consider factors like voltage drop, current capacity, reverse voltage, and operating frequency when selecting a diode. Read more about Diodes on our Diodes part category page.

Price & Stock for 1SMB5943BT3G

Part # Distributor Description Stock Price Buy
DISTI # 59M4353
Newark Zener Single Diode, General Purpose, 56 V, 3 W, Do-214Aa, 5 %, 2, 150 C Rohs Compliant: Yes |Onsemi 1SMB5943BT3G RoHS: Compliant Min Qty: 5 Package Multiple: 1 Date Code: 1 Container: Cut Tape 9805
  • 1 $0.3600
  • 10 $0.2450
  • 25 $0.2170
  • 50 $0.1880
  • 100 $0.1600
  • 250 $0.1460
  • 500 $0.1310
$0.1310 / $0.3600 Buy Now
DISTI # 84AC3388
Newark Zen Smb Reg 3W 56V Tr Rohs Compliant: Yes |Onsemi 1SMB5943BT3G RoHS: Compliant Min Qty: 2500 Package Multiple: 1 Date Code: 0 Container: Reel 5000
  • 1 $0.0790
$0.0790 Buy Now
DISTI # 45J2459
Newark Zener Diode, 3W, 56V, Smb, Full Reel, Zener Voltage Nom:56V, Power Dissipation:3W, Diode Case Style:Do-214Aa (Smb), No. Of Pins:2Pins, Operating Temperature Max:150°C, Diode Mounting:Surface Mount, Product Range:1Smb59Xxbt3G Series Rohs Compliant: Yes |Onsemi 1SMB5943BT3G RoHS: Compliant Min Qty: 2500 Package Multiple: 1 Date Code: 0 Container: Reel 0
  • 1 $0.1290
  • 3,000 $0.1220
  • 6,000 $0.1070
  • 12,000 $0.0950
  • 18,000 $0.0880
  • 30,000 $0.0800
$0.0800 / $0.1290 Buy Now
DISTI # 1SMB5943BT3GOSCT-ND
DigiKey DIODE ZENER 56V 3W SMB Min Qty: 1 Lead time: 6 Weeks Container: Digi-Reel®, Cut Tape (CT), Tape & Reel (TR) 39705
In Stock
  • 1 $0.3600
  • 10 $0.2450
  • 100 $0.1600
  • 500 $0.1310
  • 1,000 $0.0980
  • 2,500 $0.0767
$0.0767 / $0.3600 Buy Now
DISTI # 863-1SMB5943BT3G
Mouser Electronics Zener Diodes 56V 3W RoHS: Compliant 143753
  • 1 $0.3600
  • 10 $0.2450
  • 100 $0.1600
  • 500 $0.1310
  • 1,000 $0.0980
  • 2,500 $0.0760
$0.0760 / $0.3600 Buy Now
DISTI # E02:0323_00076443
Arrow Electronics Diode Zener Single 56V 5% 3000mW 2-Pin SMB T/R Min Qty: 2500 Package Multiple: 2500 Lead time: 6 Weeks Date Code: 2440 Europe - 7500
  • 2,500 $0.0828
$0.0828 Buy Now
DISTI # V72:2272_07290474
Arrow Electronics Diode Zener Single 56V 5% 3000mW 2-Pin SMB T/R Min Qty: 1 Package Multiple: 1 Lead time: 6 Weeks Date Code: 2235 Container: Cut Strips Americas - 7318
  • 1 $0.3312
  • 10 $0.2232
  • 25 $0.1926
  • 100 $0.1428
  • 250 $0.1354
  • 500 $0.1144
  • 1,000 $0.1038
  • 3,000 $0.0931
  • 6,000 $0.0825
$0.0825 / $0.3312 Buy Now
DISTI # V36:1790_07290474
Arrow Electronics Diode Zener Single 56V 5% 3000mW 2-Pin SMB T/R Min Qty: 2500 Package Multiple: 2500 Lead time: 6 Weeks Date Code: 2411 Americas - 2500
  • 2,500 $0.0736
$0.0736 Buy Now
DISTI # 70100308
RS Diode, Zener, Vr 56V, If 200mA, Pkg SMB, Vf 1.5V, Tj +150degc, Pd 3W, Ir 6.7mA Min Qty: 20 Package Multiple: 1 Container: Bulk 0
  • 20 $0.2480
  • 200 $0.2360
  • 1,000 $0.2230
  • 2,000 $0.2110
$0.2110 / $0.2480 RFQ
Future Electronics 1SMB5943B series 550 mW 56 V SMT Zener Voltage Regulator - DO-214AA RoHS: Compliant pbFree: Yes Min Qty: 2500 Package Multiple: 2500 Lead time: 6 Weeks Container: Reel 22500
Reel
  • 2,500 $0.0718
  • 5,000 $0.0705
  • 7,500 $0.0698
  • 10,000 $0.0693
  • 12,500 $0.0677
$0.0677 / $0.0718 Buy Now
Future Electronics 1SMB5943B series 550 mW 56 V SMT Zener Voltage Regulator - DO-214AA RoHS: Compliant pbFree: Yes Min Qty: 2500 Package Multiple: 2500 Lead time: 6 Weeks Container: Reel 7500
Reel
  • 2,500 $0.0718
  • 5,000 $0.0705
  • 7,500 $0.0698
  • 10,000 $0.0693
  • 12,500 $0.0677
$0.0677 / $0.0718 Buy Now
Onlinecomponents.com Diode Zener Single 56V 5% 550mW Automotive 2-Pin SMB T/R RoHS: Compliant 0
  • 2,500 $0.0841
  • 5,000 $0.0828
  • 7,500 $0.0816
  • 10,000 $0.0804
  • 25,000 $0.0777
  • 50,000 $0.0758
  • 100,000 $0.0747
  • 150,000 $0.0735
$0.0735 / $0.0841 Buy Now
DISTI # 86929535
Verical Diode Zener Single 56V 5% 3000mW 2-Pin SMB T/R Min Qty: 2500 Package Multiple: 2500 Date Code: 2440 Americas - 7500
  • 2,500 $0.0834
$0.0834 Buy Now
DISTI # 79052702
Verical Diode Zener Single 56V 5% 3000mW 2-Pin SMB T/R Min Qty: 72 Package Multiple: 1 Date Code: 2235 Americas - 7318
  • 72 $0.1981
  • 100 $0.1470
  • 250 $0.1392
  • 500 $0.1183
  • 1,000 $0.1064
  • 3,000 $0.0944
  • 6,000 $0.0825
$0.0825 / $0.1981 Buy Now
DISTI # 87892998
Verical Diode Zener Single 56V 5% 3000mW 2-Pin SMB T/R Min Qty: 293 Package Multiple: 1 Americas - 2500
  • 293 $0.3040
  • 500 $0.1820
  • 1,000 $0.1350
$0.1350 / $0.3040 Buy Now
DISTI # 79375609
Verical Diode Zener Single 56V 5% 3000mW 2-Pin SMB T/R Min Qty: 2500 Package Multiple: 2500 Date Code: 2411 Americas - 2500
  • 2,500 $0.0736
$0.0736 Buy Now
Bristol Electronics   2725
RFQ
Bristol Electronics   207
RFQ
Bristol Electronics   Min Qty: 7 8
  • 7 $0.7500
$0.7500 Buy Now
Quest Components ZENER DIODE, 56V V(Z), 5%, 0.55W, SILICON, UNIDIRECTIONAL, DO-214AA 3712
  • 1 $0.5660
  • 197 $0.1698
  • 2,357 $0.1132
$0.1132 / $0.5660 Buy Now
Quest Components ZENER DIODE, 56V V(Z), 5%, 0.55W, SILICON, UNIDIRECTIONAL, DO-214AA 2180
  • 1 $0.5660
  • 23 $0.2547
  • 197 $0.1698
$0.1698 / $0.5660 Buy Now
Quest Components ZENER DIODE, 56V V(Z), 5%, 0.55W, SILICON, UNIDIRECTIONAL, DO-214AA 171
  • 1 $0.1698
  • 30 $0.1415
  • 72 $0.1132
$0.1132 / $0.1698 Buy Now
Quest Components ZENER DIODE, 56V V(Z), 5%, 0.55W, SILICON, UNIDIRECTIONAL, DO-214AA 6
  • 1 $1.0000
  • 6 $0.5000
$0.5000 / $1.0000 Buy Now
Future Electronics 1SMB5943B series 550 mW 56 V SMT Zener Voltage Regulator - DO-214AA Min Qty: 2500 Package Multiple: 2500 30000
null
  • 2,500 $0.0770
  • 5,000 $0.0756
  • 7,500 $0.0748
  • 10,000 $0.0743
  • 12,500 $0.0725
$0.0725 / $0.0770 Buy Now
DISTI # 1SMB5943BT3G
TME Diode: Zener, 3W, 56V, SMD, reel,tape, SMB, single diode Min Qty: 1 2176
  • 1 $0.3170
  • 10 $0.2330
  • 50 $0.1740
  • 100 $0.1540
  • 500 $0.1170
  • 1,000 $0.1050
  • 2,500 $0.1010
$0.1010 / $0.3170 Buy Now
Velocity Electronics Our Stock 20685
RFQ
DISTI # 1SMB5943BT3G
Avnet Asia Zener Single Diode, 56 V, 3 W, DO-214AA (SMB), 2 Pins, 150 ?C, Surface Mount (Alt: 1SMB5943BT3G) RoHS: Compliant Min Qty: 10000 Package Multiple: 2500 Lead time: 6 Weeks, 0 Days 0
  • 10,000 $0.0808
  • 20,000 $0.0797
  • 30,000 $0.0787
  • 50,000 $0.0777
  • 100,000 $0.0758
  • 250,000 $0.0740
  • 500,000 $0.0722
$0.0722 / $0.0808 Buy Now
DISTI # 1SMB5943BT3G
Avnet Silica Zener Single Diode 56 V 3 W DO214AA SMB 2 Pins 150 C Surface Mount (Alt: 1SMB5943BT3G) RoHS: Compliant Min Qty: 2500 Package Multiple: 2500 Lead time: 7 Weeks, 0 Days Silica - 5000
Buy Now
DISTI # 1SMB5943BT3G
Chip One Stop Semiconductors RoHS: Compliant Min Qty: 5 Lead time: 0 Weeks, 1 Days Container: Cut Tape 2500
  • 5 $0.3040
  • 50 $0.1820
  • 100 $0.1350
  • 200 $0.1340
  • 500 $0.1080
  • 1,000 $0.0996
  • 5,000 $0.0994
  • 10,000 $0.0992
  • 20,000 $0.0887
$0.0887 / $0.3040 Buy Now
Component Electronics, Inc IN STOCK SHIP TODAY 77
  • 1 $1.1500
  • 100 $0.8700
  • 1,000 $0.7500
$0.7500 / $1.1500 Buy Now
DISTI # 1SMB5943BT3G
EBV Elektronik Zener Single Diode 56 V 3 W DO214AA SMB 2 Pins 150 C Surface Mount (Alt: 1SMB5943BT3G) RoHS: Compliant Min Qty: 2500 Package Multiple: 2500 Lead time: 8 Weeks, 0 Days EBV - 0
Buy Now
Flip Electronics Stock, ship today 10000
RFQ
LCSC Independent Type 53.2V58.8V 56V SMB(DO-214AA) Zener Diodes ROHS 9985
  • 5 $0.1330
  • 50 $0.1050
  • 150 $0.0895
  • 500 $0.0801
  • 2,500 $0.0720
  • 5,000 $0.0677
$0.0677 / $0.1330 Buy Now
New Advantage Corporation 1SMB5943B series 550 mW 56 V SMT Zener Voltage Regulator - DO-214AA RoHS: Compliant Min Qty: 1 Package Multiple: 2500 27500
  • 2,500 $0.1283
  • 27,500 $0.1185
$0.1185 / $0.1283 Buy Now
Vyrian Diodes 25832
RFQ
Win Source Electronics DIODE ZENER 56V 3W SMB 66136
  • 440 $0.1327
  • 1,065 $0.1090
  • 1,645 $0.1056
  • 2,265 $0.1021
  • 2,925 $0.0988
  • 3,920 $0.0885
$0.0885 / $0.1327 Buy Now
Wuhan P&S 3 Watt Plastic Surface Mount Silicon Zener Diode Min Qty: 1 22500
  • 1 $0.2141
  • 100 $0.1367
  • 500 $0.1127
  • 1,000 $0.1036
$0.1036 / $0.2141 Buy Now

Part Details for 1SMB5943BT3G

1SMB5943BT3G CAD Models

1SMB5943BT3G Part Data Attributes

1SMB5943BT3G onsemi
Buy Now Datasheet
Compare Parts:
1SMB5943BT3G onsemi 3.0 W Zener Diode Voltage Regulator 56 V, SMB, 2500-REEL
Pbfree Code Yes
Rohs Code Yes
Part Life Cycle Code Active
Ihs Manufacturer ONSEMI
Part Package Code SMB
Package Description LEAD FREE, PLASTIC, CASE 403A-03, SMB, 2 PIN
Pin Count 2
Manufacturer Package Code 403A-03
Reach Compliance Code not_compliant
ECCN Code EAR99
HTS Code 8541.10.00.50
Factory Lead Time 6 Weeks
Samacsys Manufacturer onsemi
Configuration SINGLE
Diode Element Material SILICON
Diode Type ZENER DIODE
Dynamic Impedance-Max 86 Ω
JEDEC-95 Code DO-214AA
JESD-30 Code R-PDSO-L2
JESD-609 Code e3
Moisture Sensitivity Level 1
Number of Elements 1
Number of Terminals 2
Operating Temperature-Max 150 °C
Operating Temperature-Min -65 °C
Package Body Material PLASTIC/EPOXY
Package Shape RECTANGULAR
Package Style SMALL OUTLINE
Peak Reflow Temperature (Cel) 260
Polarity UNIDIRECTIONAL
Power Dissipation-Max 3 W
Qualification Status Not Qualified
Reference Voltage-Nom 56 V
Surface Mount YES
Technology ZENER
Terminal Finish MATTE TIN
Terminal Form L BEND
Terminal Position DUAL
Time@Peak Reflow Temperature-Max (s) 30
Voltage Tol-Max 5%
Working Test Current 6.7 mA

Alternate Parts for 1SMB5943BT3G

This table gives cross-reference parts and alternative options found for 1SMB5943BT3G. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of 1SMB5943BT3G, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.

Part Number Manufacturer Composite Price Description Compare
MLL5943BE3 Microsemi Corporation Check for Price Zener Diode, 56V V(Z), 5%, 1.25W, Silicon, Unidirectional, DO-213AB, HERMETIC SEALED, GLASS, MELF-2 1SMB5943BT3G vs MLL5943BE3
MLL5943B Microsemi Corporation Check for Price Zener Diode, 56V V(Z), 5%, 1.25W, Silicon, Unidirectional, DO-213AB, HERMETIC SEALED, GLASS, MELF-2 1SMB5943BT3G vs MLL5943B
MLL5943B-1E3 Microsemi Corporation Check for Price Zener Diode, 56V V(Z), 5%, 1.5W, Silicon, Unidirectional, DO-213AA, SURFACE MOUNT PACKAGE-2 1SMB5943BT3G vs MLL5943B-1E3

1SMB5943BT3G Related Parts

1SMB5943BT3G Frequently Asked Questions (FAQ)

  • The recommended PCB footprint for the 1SMB5943BT3G is a standard SOD-323 package with a 1.7mm x 1.3mm body size. The recommended land pattern is available in the onsemi packaging specifications document.

  • To ensure reliable operation of the 1SMB5943BT3G in high-temperature environments, it is recommended to follow proper thermal management practices, such as providing adequate heat sinking and airflow, and ensuring that the device is operated within its specified temperature range.

  • The maximum surge current rating for the 1SMB5943BT3G is 30A for a 10/1000μs waveform, as specified in the datasheet. However, it is recommended to derate the surge current rating based on the specific application and environmental conditions.

  • Yes, the 1SMB5943BT3G is qualified for automotive applications and meets the requirements of AEC-Q101. However, it is recommended to consult with onsemi's automotive support team to ensure that the device meets the specific requirements of the application.

  • The 1SMB5943BT3G has an integrated ESD protection diode, but it is recommended to follow proper ESD handling and storage procedures to prevent damage to the device. Additional external ESD protection may be required depending on the specific application and environment.

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