# Zener Single Diode, 18 V, 1 W, DO-214AC (SMA), 2 Pins, 150 °C, Surface Mount

![Product image](https://novapart.co/image/farnell:4627779RL/)

**URL**: https://novapart.co/products/SMAJ4746A-TP/zener-single-diode-18-v-1-w-do-214ac-sma-2-pins
**SKU**: SMAJ4746A-TP
**Manufacturer**: MICRO COMMERCIAL COMPONENTS (MCC)
**Category**: Semiconductors - Discretes || Diodes & Rectifiers || Zener Single Diodes
**Price**: €0.0620
**Stock**: 1000+
**Lead Time**: 106 days (indicative)

## Specifications

| Parameter | Value |
|---|---|
| No. Of Pins | 2Pins |
| Power Dissipation | 1W |
| Zener Voltage Nom | 18V |
| Operating Temperature Max | 150°C |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:4627779RL/)

**SMAJ4733A THRU SMAJ4764A** 

## **Features** 

- For Surface Mount Applications 

- VZ – Tolerance: ±5% 

- Halogen Free. “Green” Device[ (Note 1)] 

- Moisture Sensitivity Level 1 

- Epoxy Meets UL 94 V-0 Flammability Rating 

- Lead Free Finish/RoHS Compliant[(Note 2)] ("P" Suffix Designates Compliant. See Ordering Information) 

**1.0 Watt Surface Mount Silicon Zener Diodes 5.1V to 100V** 

## **Maximum Ratings** 

**==> picture [153 x 165] intentionally omitted <==**

**----- Start of picture text -----**<br>
SMA (DO-214AC)<br>LEAD FRAME<br>H<br>a<br>J<br>c D<br>Cathode Mark<br>+ 4<br>C<br>A<br>E<br>F D B<br>G<br>**----- End of picture text -----**<br>


- Operating Junction Temperature Range:  -65°C to +150°C 

- Storage Temperature Range: -65°C to +150°C 

- Thermal Resistance : 100°C/W Junction to Ambient 

- Thermal Resistance : 75°C/W Junction to  Lead 

|**Parameter**|**Symbol**|**Rating**|**Conditions**|
|---|---|---|---|
|Power Dissipation|PD|1.0W|TL=75°C|
|Zener Current|IZ|Pd/Vz mA||
|Maximum Forward<br>Voltage|VF|1.2V|IF=100mA|



Note: 

1. Halogen free "Green"products are defined as those which contain <900ppm bromine, ~~Ce~~ DIMENSIONS <900ppm chlorine (<1500ppm total Br + Cl) and <1000ppm antimony compounds. DIM INCHES MM NOTE 2. High Temperature Solder Exemption Applied, see EU Directive Annex 7a. ~~———e~~ MIN MAX MIN MAX ~~a~~ A 0.075 0.096 1.90 2.44 B 0.050 0.064 1.27 1.63 ~~ee~~ C 0.002   0.008 0.051   0.203 D --0.020 --0.51 ~~ee~~ E 0.030 0.060 0.76 1.52 **Internal Structure** F 0.065 0.091 1.65 2.32 ~~ee G 0.189 0.220 4.80 5.59~~ **Description Simplified outline Graphic symbol** H 0.157 0.187 4.00 4.75 J 0.090 0.115 2.25 2.92 MCC Cathode Anode Uni-directional 1 XXXX 2 （1） （2） **SUGGESTED SOLDER PAD LAYOUT** ~~Cp~~ Cathode Mark ~~ee~~ 2.27mm XXXX = Marking code ~~- _~~ 2.16mm ak ~~j~~ o 1.78mm ~~b~~ 

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## **Electrical Characteristics @ 25°C Unless Otherwise Specified** 

|Part Number|Nominal Zener Voltage|Nominal Zener Voltage|Nominal Zener Voltage|Test<br>Current|Maximum Dynamic<br>Impedance Resistance|Maximum Dynamic<br>Impedance Resistance|Maximum Dynamic<br>Impedance Resistance|Maximum<br>Reverse<br>leakage Current|Maximum<br>Reverse<br>leakage Current|Maximu<br>m DC<br>Zener<br>Current|Marking<br>Code|
|---|---|---|---|---|---|---|---|---|---|---|---|
||VZ@IZT|||IZT|ZZT at IZT|ZZK at IZK|IZK|IR|VR|IZM||
||Min(V)|Nom(V)|Max(V)|mA|Ω|Ω|mA|μA|V|mA||
|SMAJ4733A|4.85|5.1|5.36|49|7|550|1|10|1.0|177|733A|
|SMAJ4734A|5.32|5.6|5.88|45|5|600|1|10|2.0|161|734A|
|SMAJ4735A|5.89|6.2|6.51|41|2|700|1|10|3.0|146|735A|
|SMAJ4736A|6.46|6.8|7.14|37|3.5|700|1|10|4.0|133|736A|
|SMAJ4737A|7.13|7.5|7.88|34|4|700|0.5|10|5.0|121|737A|
|SMAJ4738A|7.79|8.2|8.61|31|4.5|700|0.5|10|6.0|110|738A|
|SMAJ4739A|8.65|9.1|9.56|28|5|700|0.5|10|7.0|100|739A|
|SMAJ4740A|9.50|10.0|10.50|25|7|700|0.25|10|7.6|91|740A|
|SMAJ4741A|10.45|11.0|11.55|23|8|700|0.25|5|8.4|83|741A|
|SMAJ4742A|11.40|12.0|12.60|21|9|700|0.25|5|9.1|76|742A|
|SMAJ4743A|12.35|13.0|13.65|19|10|700|0.25|5|9.9|69|743A|
|SMAJ4744A|14.25|15.0|15.75|17|14|700|0.25|5|11.4|61|744A|
|SMAJ4745A|15.20|16.0|16.80|15.5|16|700|0.25|5|12.2|57|745A|
|SMAJ4746A|17.10|18.0|18.90|14.0|20|750|0.25|5|13.7|50|746A|
|SMAJ4747A|19.00|20.0|21.00|12.5|22|750|0.25|5|15.2|45|747A|
|SMAJ4748A|20.90|22.0|23.10|11.5|23|750|0.25|5|16.7|41|748A|
|SMAJ4749A|22.80|24.0|25.20|10.5|25|750|0.25|5|18.2|38|749A|
|SMAJ4750A|25.65|27.0|28.35|9.5|35|750|0.25|5|20.6|34|750A|
|SMAJ4751A|28.50|30.0|31.50|8.5|40|1000|0.25|5|22.8|30|751A|
|SMAJ4752A|31.35|33.0|34.65|7.5|45|1000|0.25|5|25.1|27|752A|
|SMAJ4753A|34.20|36.0|37.80|7|50|1000|0.25|5|27.4|25|753A|
|SMAJ4754A|37.05|39.0|40.95|6.5|60|1000|0.25|5|29.7|23|754A|
|SMAJ4755A|40.85|43.0|45.15|6|70|1500|0.25|5|32.7|22|755A|
|SMAJ4756A|44.65|47.0|49.35|5.5|80|1500|0.25|5|35.8|19|756A|
|SMAJ4757A|48.45|51.0|53.55|5|95|1500|0.25|5|38.8|18|757A|
|SMAJ4758A|53.20|56.0|58.80|4.5|110|2000|0.25|5|42.6|16|758A|
|SMAJ4759A|58.90|62.0|65.10|4|125|2000|0.25|5|47.1|14|759A|
|SMAJ4760A|64.60|68.0|71.40|3.7|150|2000|0.25|5|51.7|13|760A|
|SMAJ4761A|71.25|75.0|78.75|3.3|175|2000|0.25|5|56.0|12|761A|
|SMAJ4762A|77.90|82.0|86.10|3|200|3000|0.25|5|62.2|11|762A|
|SMAJ4763A|86.45|91.0|95.55|2.8|250|3000|0.25|5|69.2|10|763A|
|SMAJ4764A|95.00|100.0|105.00|2.5|350|3000|0.25|5|76.0|9|764A|



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## **Curve Characteristics** 

**==> picture [526 x 663] intentionally omitted <==**

**----- Start of picture text -----**<br>
Fig. 1 - Pulse Derating Curve Fig. 2 - Typical Zener Breakdown Characteristics<br>1.2 100<br>1.0<br>5.1V<br>5.6V 6.8V 7.5V 10V<br>0.8<br>0.6 10<br>0.4<br>0.2<br>0.0 1<br>0 25 50 75 100 125 150 175 4 6 10<br>Temperature (°C)  Zener Voltage (V)<br>Fig. 3- Typical Zener Breakdown Characteristics Fig. 4- Typical Zener Breakdown Characteristics<br>100<br>15V<br>18V 24V<br>20V 51V 56V 68V 100V<br>100<br>10<br>10<br>T A =25°C<br>f =1MHz<br>1 1<br>10 20 30 40 50 50 60 70 80 90 100 110<br> Zener Voltage (V)  Zener Voltage (V)<br>Fig. 5- Typical Forward Characteristics<br>10<br>1<br>0.1<br>0.50 0.75 1.00 1.25 1.50 1.75 2.00<br> Peak Forward Voltage (V)<br>Power  Dissipation(W) Zener Current (mA)<br>Zener Current (mA) Zener Current (mA)<br> Peak Forward Current (A)<br>**----- End of picture text -----**<br>


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## **Ordering Information** 

|**Device**|**Packing**|
|---|---|
|Part Number-TP|Tape&Reel:7.5Kpcs/Reel|



## *****IMPORTANT NOTICE***** 

_**Micro Commercial Components Corp**_ . reserves the right to make changes without further notice to any product herein to make corrections, modifications , enhancements , improvements , or other changes . _**Micro Commercial Components Corp**_ . does not assume any liability arising out of the application or use of any product described herein; neither does it convey any license under its patent rights ,nor the rights of others . The user of products in such applications shall assume all risks of such use and will agree to hold _**Micro Commercial Components Corp**_ . and all the companies whose products are represented on our website, harmless against all damages. _**Micro Commercial Components Corp**_ . products are sold subject to the general terms and conditions of commercial sale, as published at 

## **https://www.mccsemi.com/Home/TermsAndConditions.** 

## *****LIFE SUPPORT***** 

MCC's products are not authorized for use as critical components in life support devices or systems without the express written approval of Micro Commercial Components Corporation. 

## *****CUSTOMER AWARENESS***** 

Counterfeiting of semiconductor parts is a growing problem in the industry. Micro Commercial Components (MCC) is taking strong measures to protect ourselves and our customers from the proliferation of counterfeit parts. MCC strongly encourages customers to purchase MCC parts either directly from MCC or from Authorized MCC Distributors who are listed by country on our web page cited below. Products customers buy either from MCC directly or from Authorized MCC Distributors are genuine parts, have full traceability, meet MCC's quality standards for handling and storage. **MCC will not provide any warranty coverage or other assistance for parts bought from Unauthorized Sources** . MCC is committed to combat this global problem and encourage our customers to do their part in stopping this practice by buying direct or from authorized distributors. 

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## Links

- [View this product on Novapart](https://novapart.co/products/SMAJ4746A-TP/zener-single-diode-18-v-1-w-do-214ac-sma-2-pins)
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- [Supplier page](https://es.farnell.com/micro-commercial-components/smaj4746a-tp/zener-diode-18v-1w-do-214ac/dp/4627779RL)
---

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