# ZENER DIODE, 56V, 3W, SMB
**URL**: https://novapart.co/products/SMBJ5943B/zener-diode-56v-3w-smb
**SKU**: SMBJ5943B
**Manufacturer**: MULTICOMP PRO
**Category**: Semiconductors - Discretes || Diodes & Rectifiers || Zener Single Diodes
**Price**: €0.0620
**Stock**: 1000+
**Lead Time**: 110 days (indicative)
## Description
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 27AK4375
## Specifications
| Parameter | Value |
|---|---|
| No. Of Pins | 2Pins |
| Product Range | - |
| Qualification | - |
| Diode Mounting | Surface Mount |
| Diode Case Style | DO-214AA (SMB) |
| Power Dissipation | 3W |
| Zener Voltage Nom | 56V |
| Operating Temperature Max | 150°C |
## Datasheet
📄 [Download PDF](https://novapart.co/datasheet/farnell:3949167/)
## **Zener Diode 56V**
## **Features**
- Withstands large surge stresses
- High surge current rating
- Halogen free
- Case: SMB molded plastic
- Molding compound, UL flammability classification rating 94V-0
- Polarity: Color band denotes cathode end
## **Maximum Ratings (@Ta = 25°C unless otherwise specified)**
|**Parameter**|**Symbol**|**Value**|**Unit**|
|---|---|---|---|
|Power dissipation at Tl = 75°C|Ptot|3|W|
|Forward voltage@If = 200mA|Vf|1.5|V|
|Typical thermal resistance|RθJL
RθJA|25
226|°C/W|
|Junction temperature|Tj|-50 ~ +150|°C|
|Storage temperature range|Tstg|-50 ~ +150||
## **Electrical Characteristics (@TA = 25°C unless otherwise specified)**
|**Device**
**Marking**
**Code**|**Zener**
**Voltage**|**Test Current**|**Dynamic**
**Impedance**|**Knee**
**Current**|**Knee**
**Impedance**|**Reverse**
**Current**|**Reverse**
**Voltage**|**Max.**
**DC Current**|
|---|---|---|---|---|---|---|---|---|
||**Vz**|**Izt**|**Zzt**|**Izk**|**Zzk**|**Ir(Max.)**|**Vr**|**Izm**|
||**V**|**mA**|**Ω**|**mA**|**Ω**|**μA dc**|**V**|**mA**|
|943B|56|6.7|86|0.25|1300|1|42.6|26|
## **Notes:**
No suffix indicates a ±20% tolerance on nominal Vz. Suffix A denotes a ±10% tolerance, B denotes a ±5% tolerance, C denotes a ±2% tolerance, and D denotes a ±1% tolerance.
Zener voltage (Vz) is measured at Tl=30°C. Voltage measurement to be performed 90 seconds after application of DC current. The zener impedance is derived from the 60Hz AC voltage, which results when an ac current having an rms value equal to 10% of the dc zener current(Izt or Izk) is superimposed on Izt or Izk.
## **Ratings and Characteristic Curves (@TA=25°C unless otherwise noted)**
Newark.com/multicomp-pro Farnell.com/multicomp-pro sg.element14.com/b/multicomp-pro
20/07/22 V1.0
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## **Zener Diode 56V**
## **Diagram**
## **Mounting Pad Layout**
## **Part Number Table**
## Dimensions : Millimetres
**Description Part Number** Zener Diode, 56V SMBJ5943B ~~———~~
**Important Notice :** This data sheet and its contents (the “Information”) belong to the members of the AVNET group of companies (the “Group”) or are licensed to it. No licence is granted for the use of it other than for information purposes in connection with the products to which it relates. No licence of any intellectual property rights is granted. The Information is subject to change without notice and replaces all data sheets previously supplied. The Information supplied is believed to be accurate but the Group assumes no responsibility for its accuracy or completeness, any error in or omission from it or for any use made of it. Users of this data sheet should check for themselves the Information and the suitability of the products for their purpose and not make any assumptions based on information included or omitted. Liability for loss or damage resulting from any reliance on the Information or use of it (including liability resulting from negligence or where the Group was aware of the possibility of such loss or damage arising) is excluded. This will not operate to limit or restrict the Group’s liability for death or personal injury resulting from its negligence. Multicomp Pro is the registered trademark of Premier Farnell Limited 2019.
Newark.com/multicomp-pro
Farnell.com/multicomp-pro sg.element14.com/b/multicomp-pro
20/07/22 V1.0
Page <2>
## Links
- [View this product on Novapart](https://novapart.co/products/SMBJ5943B/zener-diode-56v-3w-smb)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/multicomp-pro/smbj5943b/zener-diode-56v-3w-smb/dp/3949167)
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