# Zener Single Diode, QuadroMELF, 1.8 V, 500 mW, SOD-80 (MiniMELF), 2 Pins, 175 °C, Surface Mount

![Product image](https://novapart.co/image/farnell:2690122RL/)

**URL**: https://novapart.co/products/TZS4678-GS08/zener-single-diode-quadromelf-18-v-500-mw-sod-80
**SKU**: TZS4678-GS08
**Manufacturer**: VISHAY
**Category**: Semiconductors - Discretes || Diodes & Rectifiers || Zener Single Diodes
**Price**: €0.0540
**Stock**: 10+

## Description

Zener Voltage Vz Typ:1.8V; Power Dissipation Pd:500mW; Diode Case Style:SOD-80 (MiniMELF); Zener Tolerance ±:5%; No. of Pins:2Pins; Operating Temperature Max:175°C; Product Range:-;

## Specifications

| Parameter | Value |
|---|---|
| Svhc | No SVHC (17-Jan-2022) |
| No. Of Pins | 2Pins |
| Product Range | - |
| Qualification | AEC-Q101 |
| Diode Mounting | Surface Mount |
| Diode Case Style | SOD-80 (MiniMELF) |
| Power Dissipation | 500mW |
| Zener Voltage Nom | 1.8V |
| Operating Temperature Max | 175°C |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:2690122RL/)

**TZS4678 to TZS4717** 

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## Vishay Semiconductors 

## **Small Signal Zener Diodes** 

## **FEATURES** 

- Zener voltage specified at 50 μA 

- Maximum delta VZ given from 10 μA to 100 μA 

- 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** 

|**PRIMARY CHARACTERISTICS**|**PRIMARY CHARACTERISTICS**|**PRIMARY CHARACTERISTICS**|
|---|---|---|
|**PARAMETER**|**VALUE**|**UNIT**|
|VZrange nom.|1.8 to 43|V|
|Test current IZT|0.05|mA|
|VZspecification|Pulse current||
|Int. construction|Single||



|**ORDERING INFORMATION**|**ORDERING INFORMATION**|**ORDERING INFORMATION**|**ORDERING INFORMATION**|
|---|---|---|---|
|**DEVICE NAME**|**ORDERING CODE**|**TAPED UNITS PER REEL**|**MINIMUM ORDER QUANTITY**|
|TZS4678 to TZS4717|TZS4678-GS08 to TZS4717-GS08|2500 (per 7" reel)|12 500/box|



|**PACKAGE**|**PACKAGE**|**PACKAGE**|**PACKAGE**|**PACKAGE**|
|---|---|---|---|---|
|**PACKAGE NAME**|**WEIGHT**|**MOLDING COMPOUND**<br>**FLAMMABILITY RATING**|**MOISTURE SENSITIVITY**<br>**LEVEL**|**SOLDERING CONDITIONS**|
|QuadroMELF SOD-80|34 mg|n/a|n/a|260 °C/10 s at terminals|



|**ABSOLUTE MAXIMUM RATINGS**(Tamb= 25 °C,unless otherwise specified)|**ABSOLUTE MAXIMUM RATINGS**(Tamb= 25 °C,unless otherwise specified)|**ABSOLUTE MAXIMUM RATINGS**(Tamb= 25 °C,unless otherwise specified)|**ABSOLUTE MAXIMUM RATINGS**(Tamb= 25 °C,unless otherwise specified)|**ABSOLUTE MAXIMUM RATINGS**(Tamb= 25 °C,unless otherwise specified)|
|---|---|---|---|---|
|**PARAMETER**|**TEST CONDITION**|**SYMBOL**|**VALUE**|**UNIT**|
|Power dissipation|RthJA 300 K/W|Ptot|500|mW|
|Zener current||IZ|Ptot/VZ|mA|
|Junction to ambient air|On PC board 50 mm x 50 mm x 1.6 mm|RthJA|500|K/W|
|Junction temperature||Tj|175|°C|
|Storage temperature range||Tstg|-65 to +175|°C|
|Forward voltage (max.)|IF= 100 mA|VF|1.5|V|



Rev. 1.8, 20-Nov-13 

Document Number: 85613 

**1** 

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 

**TZS4678 to TZS4717** 

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www.vishay.com 

## Vishay Semiconductors 

|**ELECTRICAL CHARACTERISTICS**(Tamb= 25 °C,unless otherwise specified)|**ELECTRICAL CHARACTERISTICS**(Tamb= 25 °C,unless otherwise specified)|**ELECTRICAL CHARACTERISTICS**(Tamb= 25 °C,unless otherwise specified)|**ELECTRICAL CHARACTERISTICS**(Tamb= 25 °C,unless otherwise specified)|**ELECTRICAL CHARACTERISTICS**(Tamb= 25 °C,unless otherwise specified)|**ELECTRICAL CHARACTERISTICS**(Tamb= 25 °C,unless otherwise specified)|**ELECTRICAL CHARACTERISTICS**(Tamb= 25 °C,unless otherwise specified)|**ELECTRICAL CHARACTERISTICS**(Tamb= 25 °C,unless otherwise specified)|**ELECTRICAL CHARACTERISTICS**(Tamb= 25 °C,unless otherwise specified)|
|---|---|---|---|---|---|---|---|---|
|**PART**<br>**NUMBER**|**ZENER VOLTAGE RANGE**|||**TEST CURRENT**||**REVERSE  CURRENT(3)**||**VOLTAGE CHANGE(4)**|
||**VZ at IZT1**|||**IZT1**|**IZT2 (2)**|**IR at VR**||**VZ**|
||**V**|||**mA**||**μA**|**V**|**V**|
||**MIN.**|**NOM.(1)**|**MAX.**|||**MAX.**||**MAX.**|
|TZS4678|1.71|1.8|1.89|0.05|120|7.5|1|0.7|
|TZS4679|1.9|2|2.1|0.05|110|5|1|0.7|
|TZS4680|2.09|2.2|2.31|0.05|100|4|1|0.75|
|TZS4681|2.28|2.4|2.52|0.05|95|2|1|0.8|
|TZS4682|2.565|2.7|2.835|0.05|90|1|1|0.85|
|TZS4683|2.85|3|3.15|0.05|85|0.8|1|0.9|
|TZS4684|3.135|3.3|3.465|0.05|80|7.5|1.5|0.95|
|TZS4685|3.42|3.6|3.78|0.05|75|7.5|2|0.95|
|TZS4686|3.705|3.9|4.095|0.05|70|5|2|0.97|
|TZS4687|4.085|4.3|4.515|0.05|65|4|2|0.99|
|TZS4688|4.465|4.7|4.935|0.05|60|10|3|0.99|
|TZS4689|4.845|5.1|5.355|0.05|55|10|3|0.97|
|TZS4690|5.32|5.6|5.88|0.05|50|10|4|0.96|
|TZS4691|5.89|6.2|6.51|0.05|45|10|5|0.95|
|TZS4692|6.46|6.8|7.14|0.05|35|10|5.1|0.9|
|TZS4693|7.125|7.5|7.875|0.05|31.8|10|5.7|0.75|
|TZS4694|7.79|8.2|8.61|0.05|29|1|6.2|0.5|
|TZS4695|8.265|8.7|9.135|0.05|27.4|1|6.6|0.1|
|TZS4696|8.645|9.1|9.555|0.05|26.2|1|6.9|0.08|
|TZS4697|9.5|10|10.5|0.05|24.8|1|7.6|0.1|
|TZS4698|10.45|11|11.55|0.05|21.6|0.05|8.4|0.11|
|TZS4699|11.4|12|12.6|0.05|20.4|0.05|9.1|0.12|
|TZS4700|12.35|13|13.65|0.05|19|0.05|9.8|0.13|
|TZS4701|13.3|14|14.7|0.05|17.5|0.05|10.6|0.14|
|TZS4702|14.25|15|15.75|0.05|16.3|0.05|11.4|0.15|
|TZS4703|15.2|16|16.8|0.05|15.4|0.05|12.1|0.16|
|TZS4704|16.15|17|17.85|0.05|14.5|0.05|12.9|0.17|
|TZS4705|17.1|18|18.9|0.05|13.2|0.05|13.6|0.18|
|TZS4706|18.05|19|19.95|0.05|12.5|0.05|14.4|0.19|
|TZS4707|19|20|21|0.05|11.9|0.01|15.2|0.2|
|TZS4708|20.9|22|23.1|0.05|10.8|0.01|16.7|0.22|
|TZS4709|22.8|24|25.2|0.05|9.9|0.01|18.2|0.24|
|TZS4710|23.75|25|26.25|0.05|9.5|0.01|19|0.25|
|TZS4711|25.65|27|28.35|0.05|8.8|0.01|20.4|0.27|
|TZS4712|26.6|28|29.4|0.05|8.5|0.01|21.2|0.28|
|TZS4713|28.5|30|31.5|0.05|7.9|0.01|22.8|0.3|
|TZS4714|31.35|33|34.65|0.05|7.2|0.01|25|0.33|
|TZS4715|34.2|36|37.8|0.05|6.6|0.01|27.3|0.36|
|TZS4716|37.05|39|40.95|0.05|6.1|0.01|29.6|0.39|
|TZS4717|40.85|43|45.15|0.05|5.5|0.01|32.6|0.43|



## **Notes** 

> (1) Tolerancing and voltage designation (VZ). The type numbers shown have a standard tolerance of ± 5 % on the nominal zener voltage. 

> (2) Maximum zener current ratings (IZM). Maximum zener current ratings are based on maximum zener voltage of the individual units 

> (3) Reverse leakage current (IR). Reverse leakage currents are guaranteed and measured at VR as shown on the table. 

> (4) Maximum voltage change (  VZ). Voltage change is equal to the difference between VZ at 100 μA and VZ at 10 μA. 

Rev. 1.8, 20-Nov-13 

Document Number: 85613 

**2** 

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 

**TZS4678 to TZS4717** 

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www.vishay.com<br>**----- End of picture text -----**<br>


## Vishay Semiconductors 

## **BASIC CHARACTERISTICS** (Tamb = 25 °C, unless otherwise specified) 

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600<br>500<br>400<br>300<br>200<br>100<br>0<br>0 40 80 120 160 200<br>95 9602 Tamb - Ambient Temperature (°C)<br> - Total Power Dissipation (mW)<br>tot<br>P<br>**----- End of picture text -----**<br>


Fig. 1 - Total Power Dissipation vs. Ambient Temperature 

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1000<br>T j  = 25 °C<br>100<br>I Z  = 5 mA<br>10<br>1<br>0 5 10 15 20 25<br>95 9598 VZ - Z-Voltage (V)<br>Typical Change of Working Voltage under Operating<br>Conditions at Tamb = 25 °Camb = 25 °C = 25 °C<br>1.3<br>VZtn = VZt/VZ (25 °C)<br>1.2<br>TKVZ = 10 x 10 [-4] /K<br>8 x 10 [-4] /K<br>6 x 10 [-4] /K<br>1.1<br>4 x 10 [-4] /K<br>2 x 10 [-4] /K<br>1.0 0<br>- 2 x 10 [-4] /K<br>0.9 - 4 x 10 [-4] /K<br>0.8<br>- 60 0 60 120 180 240<br>95 9599 Tj - Junction Temperature (°C)<br> - Voltage Change (mV)<br>Z<br>V<br> - Relative Voltage Change<br>Ztn<br>V<br>**----- End of picture text -----**<br>


Fig. 2 - Typical Change of Working Voltage under Operating Conditions at Tamb = 25 °Camb = 25 °C = 25 °C 

Fig. 3 - Typical Change of Working Voltage vs. Junction Temperature 

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15<br>10<br>5<br> IZ = 5 mA<br>0<br>- 5<br>0 10 20 30 40 50<br>95 9600 VZ - Z-Voltage (V)<br>Temperature Coefficient of VZZ vs. Z-Voltage<br>200<br>150<br>VR = 2 V<br>Tj = 25 °C<br>100<br>50<br>0<br>0 5 10 15 20 25<br>95 9601 VZ - Z-Voltage (V)<br>/K)<br>-4<br> (10<br>Z<br>of V<br> - Temperature Coefficient<br>VZ<br>TK<br> - Diode Capacitance (pF)<br>D<br>C<br>**----- End of picture text -----**<br>


Fig. 4 - Temperature Coefficient of VZZ vs. Z-Voltage 

Fig. 5 - Diode Capacitance vs. Z-Voltage 

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100<br>10<br>T j  = 25 °C<br>1<br>0.1<br>0.01<br>0.001<br>0 0.2 0.4 0.6 0.8 1.0<br>959605 VF - Forward Voltage (V)<br> - Forward Current (mA)<br>IF<br>**----- End of picture text -----**<br>


Fig. 6 - Forward Current vs. Forward Voltage 

Rev. 1.8, 20-Nov-13 

Document Number: 85613 

**3** 

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 

**TZS4678 to TZS4717** 

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www.vishay.com 

## Vishay Semiconductors 

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**----- Start of picture text -----**<br>
100<br>80<br>Ptot = 500 mW<br>Tamb = 25 °C<br>60<br>40<br>20<br>0<br>0 4 6 8 12 20<br>95 9604 VZ - Z-Voltage (V)<br> - Z-Current (mA)<br>IZ<br>**----- End of picture text -----**<br>


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

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**----- Start of picture text -----**<br>
50<br>40 P tot  = 500 mW<br>Tamb = 25 °C<br>30<br>20<br>10<br>0<br>15 20 25 30 35<br>95 9607 VZ - Z-Voltage (V)<br> - Z-Current (mA)<br>IZ<br>**----- End of picture text -----**<br>


Fig. 8 - Z-Current vs. Z-Voltage 

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**----- Start of picture text -----**<br>
1000<br>IZ = 1 mA<br>100<br>5 mA<br>10 10 mA<br>1 Tj = 25 °C<br>0 5 10 15 20 25<br>95 9606 VZ - Z-Voltage (V)<br>)Ω<br> - Differential Z-Resistance (<br>rZ<br>**----- End of picture text -----**<br>


Fig. 9 - Differential Z-Resistance vs. Z-Voltage 

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**----- Start of picture text -----**<br>
1000<br>t p /T = 0.5<br>100<br>t p /T = 0.2<br>Single Pulse RthJA = 300 K/W<br>T = Tj max. - Tamb<br>10 tp/T = 0.01<br>t p /T = 0.1 t p /T = 0.02<br>tp/T = 0.05 i ZM  = (- V Z  + (V Z2  + 4r zj  x T/Z thp )  1/2 )/(2r zj )<br>1<br>10 [-1] 10 [0] 10 [1] 10 [2]<br>tp - Pulse Length (ms) 95 9603<br> Fig. 10 - Thermal Response<br> - Thermal Resistance for Pulse Cond. (K/W)<br>thp<br>Z<br>**----- End of picture text -----**<br>


Rev. 1.8, 20-Nov-13 

Document Number: 85613 

**4** 

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 

**TZS4678 to TZS4717** 

Vishay Semiconductors 

**==> picture [59 x 48] intentionally omitted <==**

www.vishay.com 

## **PACKAGE DIMENSIONS** in millimeters (inches): **QuadroMELF SOD-80** 

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Cathode identification<br>> R3 (R0.118)<br>glass<br>0.47 (0.019) max.<br>3.7 (0.146)<br>3.3 (0.130)<br>The gap between plug and glass can<br>be either on cathode or anode side<br>Foot print recommendation: 2.5 (0.098) max.<br>1.25 (0.049) min.<br>5 (0.197) ref.<br>96 12071<br>1.7 (0.067)glass<br>1.6 (0.063) 1.4 (0.055)<br>2 (0.079) min.<br>**----- End of picture text -----**<br>


Rev. 1.8, 20-Nov-13 

Document Number: 85613 

**5** 

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 

**Legal Disclaimer Notice** Vishay 

www.vishay.com 

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## **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. 

Revision: 13-Jun-16 

Document Number: 91000 

**1** 



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- [Supplier page](https://es.farnell.com/vishay/tzs4678-gs08/zener-diode-auto-0-5w-1-8v-sod/dp/2690122RL)
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