BZT55C8V2 L0G

Zener Single Diode, 8.2 V, 500 mW, QMMELF, 2 Pins, 175 °C, Surface Mount

⚠️ Reference pricing provided. In case of supply shortages, we will connect you with our trusted procurement partners to ensure your project's continuity.

Manufacturer: TAIWAN SEMICONDUCTOR
Product type: Zener Single Diodes
SVHC: No SVHC (27-Jun-2018)
No. of Pins: 2Pins
Product Range: BZT55Cxxx Series
Qualification: -
Diode Mounting: Surface Mount
Diode Case Style: QMMELF
Power Dissipation: 500mW
Zener Voltage Nom: 8.2V
Operating Temperature Max: 175°C

Delivery and price
Units per pack	10000
Price	0.018 €
Current stock	10+
Lead time	30 days

Datasheet

**BZT55C2V4 – BZT55C75** Taiwan Semiconductor 

SEMICONDUCTOR[pg 

## **500mW, 2.4V - 75V Surface Mount Zener Diode** 

## FEATURES 

- Wide Zener voltage range selection: 2.4V to 75V 

- VZ tolerance selection of ± 5% 

- Hermetically sealed glass 

- RoHS Compliant 

## APPLICATIONS 

- Low voltage stabilizers or voltage references 

- Adapters 

- Lighting application 

- On-board DC/DC converter 

|KEY PARAMETERS|KEY PARAMETERS|KEY PARAMETERS|
|---|---|---|
|PARAMETER|VALUE|UNIT|
|VZ|2.4 - 75|V|
|PD|500|mW|
|VFat IF= 10mA|1|V|
|TJ MAX|175|°C|
|Package|QMMELF||
|Configuration|Single die||



## (Pb)[ROHS] A, 

## MECHANICAL DATA 

- Case: QMMELF 

- Terminal: Matte tin plated leads, solderable per J-STD-002 

- Polarity: Indicated by cathode band 

- Weight: 30.80mg (approximately) 

## **QMMELF** 

## Cathode—_<q— Anode 

|ABSOLUTE MAXIMUM RATINGS (TA= 25°C unless otherwise noted)|ABSOLUTE MAXIMUM RATINGS (TA= 25°C unless otherwise noted)|ABSOLUTE MAXIMUM RATINGS (TA= 25°C unless otherwise noted)|ABSOLUTE MAXIMUM RATINGS (TA= 25°C unless otherwise noted)|
|---|---|---|---|
|PARAMETER|SYMBOL|VALUE|UNIT|
|Forward voltage @ IF= 10mA|VF|1|V|
|Power dissipation|PD|500|mW|
|Junction temperature range|TJ|-65 to +175|°C|
|Storage temperature range|TSTG|-65 to +175|°C|



|THERMAL PERFORMANCE|THERMAL PERFORMANCE|THERMAL PERFORMANCE|THERMAL PERFORMANCE|
|---|---|---|---|
|PARAMETER|SYMBOL|TYP|UNIT|
|Junction-to-ambient thermal resistance|RӨJA|500|°C/W|



1 Version: I2301 

**BZT55C2V4 – BZT55C75** Taiwan Semiconductor 

% SEMICONDUCTOR(i **BZT55C2V4 – BZT55C75** 

## ~~|~~ ELECTRICAL SPECIFICATIONS (TA = 25°C unless otherwise noted) 

|ELECTRICAL SPECIFICATIONS (TA = 25°C unless otherwise noted)TA = 25°C unless otherwise noted)A = 25°C unless otherwise noted)= 25°C unless otherwise noted))<br>~~|~~|ELECTRICAL SPECIFICATIONS (TA = 25°C unless otherwise noted)TA = 25°C unless otherwise noted)A = 25°C unless otherwise noted)= 25°C unless otherwise noted))<br>~~|~~|ELECTRICAL SPECIFICATIONS (TA = 25°C unless otherwise noted)TA = 25°C unless otherwise noted)A = 25°C unless otherwise noted)= 25°C unless otherwise noted))<br>~~|~~|ELECTRICAL SPECIFICATIONS (TA = 25°C unless otherwise noted)TA = 25°C unless otherwise noted)A = 25°C unless otherwise noted)= 25°C unless otherwise noted))<br>~~|~~|ELECTRICAL SPECIFICATIONS (TA = 25°C unless otherwise noted)TA = 25°C unless otherwise noted)A = 25°C unless otherwise noted)= 25°C unless otherwise noted))<br>~~|~~|ELECTRICAL SPECIFICATIONS (TA = 25°C unless otherwise noted)TA = 25°C unless otherwise noted)A = 25°C unless otherwise noted)= 25°C unless otherwise noted))<br>~~|~~|ELECTRICAL SPECIFICATIONS (TA = 25°C unless otherwise noted)TA = 25°C unless otherwise noted)A = 25°C unless otherwise noted)= 25°C unless otherwise noted))<br>~~|~~|ELECTRICAL SPECIFICATIONS (TA = 25°C unless otherwise noted)TA = 25°C unless otherwise noted)A = 25°C unless otherwise noted)= 25°C unless otherwise noted))<br>~~|~~|ELECTRICAL SPECIFICATIONS (TA = 25°C unless otherwise noted)TA = 25°C unless otherwise noted)A = 25°C unless otherwise noted)= 25°C unless otherwise noted))<br>~~|~~|ELECTRICAL SPECIFICATIONS (TA = 25°C unless otherwise noted)TA = 25°C unless otherwise noted)A = 25°C unless otherwise noted)= 25°C unless otherwise noted))<br>~~|~~|
|---|---|---|---|---|---|---|---|---|---|
|PART NUMBER<br>~~po~~|ZENER VOLTAGE<br>~~po~~|||TEST<br>CURRENT|REGULAR<br>IMPEDANCE||TEST<br>CURRENT|LEAKAGE CURRENT||
||VZ@ IZT<br>~~po~~<br>~~eG~~|||IZT<br>~~eG~~|ZZT@ IZT|ZZK@ IZK<br>~~**G**O~~|IZK|IR@ VR||
||V<br>~~po~~<br>~~GC~~<br>~~eG~~|||mA<br>~~GC~~<br>~~eG~~|Ω<br>~~GC~~|Ω<br>~~GC~~<br>~~**G**O~~|mA<br>~~GC~~|µA<br>~~GC~~|V<br>~~GC~~|
||Min<br>~~eG~~|Nom<br>~~eG~~|Max<br>~~eG~~|~~eG~~|Max|Max<br>~~**G**O~~|~~G~~|Max<br>~~G~~|~~G~~|
|BZT55C2V4<br>~~se~~|2.28<br>~~se~~|2.4<br>~~se~~|2.56|5<br>~~GG~~|85<br>~~GG~~|600<br>~~GG~~|1<br>~~GG~~|50|1|
|BZT55C2V7<br>~~se~~|2.51<br>~~se~~|2.7<br>~~se~~|2.89|5<br>~~GG~~|85<br>~~GG~~|600<br>~~GG~~|1<br>~~GG~~|10|1|
|BZT55C3V0<br>~~ee~~<br>~~pC~~|2.8<br>~~ee~~|3.0<br>~~ee~~|3.2<br>~~ee~~|5<br>~~GO~~|85<br>~~GO~~|600<br>~~GO~~|1<br>~~GO~~|4|1|
|BZT55C3V3<br>~~pC~~|3.1|3.3|3.5|5|85|600|1|2|1|
|BZT55C3V6<br>~~pC~~<br>~~PD~~|3.4<br>~~PD OG~~|3.6<br>~~OG~~|3.8<br>~~OG~~|5<br>~~OG~~|85<br>~~OG~~|600<br>~~OG~~|1<br>~~OG~~|2<br>~~OG~~|1<br>~~OG~~|
|BZT55C3V9<br>~~PD~~<br>~~ee~~|3.7<br>~~PD OG~~<br>~~ee~~|3.9<br>~~OG~~<br>~~ee~~|4.1<br>~~OG~~<br>~~ee~~|5<br>~~OG~~<br>~~OD~~|85<br>~~OG~~<br>~~OD~~|600<br>~~OG~~<br>~~OD~~|1<br>~~OG~~<br>~~OD~~|2<br>~~OG~~|1<br>~~OG~~|
|BZT55C4V3<br>~~ee~~<br>~~ee~~|4.0<br>~~ee~~<br>~~ee~~|4.3<br>~~ee~~<br>~~ee~~|4.6<br>~~ee ~~<br>~~ee~~|5<br> ~~OD~~<br>~~OD~~|75<br>~~OD~~<br>~~OD~~|600<br>~~OD~~<br>~~OD~~|1<br>~~OD~~<br>~~OD~~|1|1|
|BZT55C4V7<br>~~ee~~<br>~~ee~~|4.4<br>~~ee~~<br>~~ee~~|4.7<br>~~ee~~<br>~~ee~~|5.0<br>~~ee ~~<br>~~ee~~|5<br> ~~OD~~<br>~~OD~~|60<br>~~OD~~<br>~~OD~~|600<br>~~OD~~<br>~~OD~~|1<br>~~OD~~<br>~~OD~~|0.5|1|
|BZT55C5V1<br>~~ee~~<br>~~Ge~~|4.8<br>~~ee~~<br>~~Ge~~|5.1<br>~~ee~~<br>~~Ge~~|5.4<br>~~ee ~~|5<br> ~~OD~~|35<br>~~OD~~<br>~~GO~~|550<br>~~OD~~<br>~~GO~~|1<br>~~OD~~<br>~~GO~~|0.1|1|
|BZT55C5V6<br>~~ee~~|5.2<br>~~ee~~|5.6<br>~~ee~~|6.0<br>~~ee~~|5<br>~~GG~~|25<br>~~GG~~|450<br>~~GG~~|1<br>~~GG~~|0.1|1|
|BZT55C6V2<br>~~ee~~|5.8<br>~~ee~~|6.2<br>~~ee~~|6.6<br>~~ee~~|5<br>~~GG~~|10<br>~~GG~~|200<br>~~GG~~|1<br>~~GG~~|0.1|2|
|BZT55C6V8<br>~~ee~~|6.4<br>~~ee~~|6.8<br>~~ee~~|7.2<br>~~ee~~|5<br>~~GG~~|8<br>~~GG~~|150<br>~~GG~~|1<br>~~GG~~|0.1|3|
|BZT55C7V5<br>~~ee~~|7.0<br>~~ee~~|7.5<br>~~ee~~|7.9<br>~~ee~~|5<br>~~GG~~|7<br>~~GG~~|50<br>~~GG~~|1<br>~~GG~~|0.1|5|
|BZT55C8V2<br>~~ee~~<br>~~Ge~~|7.7<br>~~ee~~<br>~~Ge~~|8.2<br>~~ee~~<br>~~Oe~~|8.7<br>~~ee~~<br>~~ee~~|5<br>~~GG~~<br>~~ee~~|7<br>~~GG~~<br>~~GG~~|50<br>~~GG~~<br>~~GG~~|1<br>~~GG~~<br>~~GG~~|0.1<br>~~GG~~|6.2<br>~~GG~~|
|BZT55C9V1<br>~~Ge~~|8.5<br>~~Ge~~|9.1<br>~~Oe~~|9.6<br>~~ee~~|5<br>~~ee~~|10<br>~~GG~~|50<br>~~GG~~|1<br>~~GG~~|0.1<br>~~GG~~|6.8<br>~~GG~~|
|BZT55C10<br>~~Ge~~<br>~~eC~~|9.4<br>~~Ge~~<br>~~eC~~|10<br>~~Oe ~~<br>~~eC~~|10.6<br> ~~ee~~<br>~~eC~~|5<br>~~ee~~<br>~~eC~~|15<br>~~GG~~<br>~~eC~~|70<br>~~GG~~<br>~~eC~~|1<br>~~GG~~<br>~~eC~~|0.1<br>~~GG~~<br>~~eC~~|7.5<br>~~GG~~<br>~~eC~~|
|BZT55C11<br>~~se~~|10.4<br>~~se~~|11<br>~~se~~|11.6|5<br>~~eG~~|20<br>~~eG~~|70<br>~~eG~~|1<br>~~eG~~|0.1|8.2|
|BZT55C12<br>~~se~~|11.4<br>~~se~~|12<br>~~se~~|12.7|5<br>~~eG~~|20<br>~~eG~~|90<br>~~eG~~|1<br>~~eG~~|0.1|9.1|
|BZT55C13<br>~~se~~|12.4<br>~~se~~|13<br>~~se~~|14.1|5<br>~~eG~~|26<br>~~eG~~|110<br>~~eG~~|1<br>~~eG~~|0.1|10|
|BZT55C15<br>~~se~~|13.8<br>~~se~~|15<br>~~se~~|15.6|5<br>~~eG~~|30<br>~~eG~~|110<br>~~eG~~|1<br>~~eG~~|0.1|11|
|BZT55C16<br>~~se~~|15.3<br>~~se~~|16<br>~~eG~~|17.1<br>~~eG~~|5<br>~~eG~~|40<br>~~eG~~|170<br>~~eG~~|1<br>~~eG~~|0.1<br>~~eG~~|12<br>~~eG~~|
|BZT55C18<br>~~ee~~|16.8<br>~~ee~~|18<br>~~ee~~|19.1<br>~~ee~~|5<br>~~GG~~|50<br>~~GG~~|170<br>~~GG~~|1<br>~~GG~~|0.1|13|
|BZT55C20<br>~~ee~~|18.8<br>~~ee~~|20<br>~~ee~~|21.1<br>~~ee~~|5<br>~~GG~~|55<br>~~GG~~|220<br>~~GG~~|1<br>~~GG~~|0.1|15|
|BZT55C22<br>~~ee~~|20.8<br>~~ee~~|22<br>~~ee~~|23.3<br>~~ee~~|5<br>~~GG~~|55<br>~~GG~~|220<br>~~GG~~|1<br>~~GG~~|0.1|16|
|BZT55C24<br>~~ee~~|22.8<br>~~ee~~|24<br>~~ee~~|25.6<br>~~ee~~|5<br>~~GG~~|80<br>~~GG~~|220<br>~~GG~~|1<br>~~GG~~|0.1|18|
|BZT55C27<br>~~ee~~<br>~~Re~~|25.1<br>~~ee~~<br>~~Re~~|27<br>~~ee~~<br>~~Ge~~|28.9<br>~~ee~~<br>~~ee~~|5<br>~~GG~~<br>~~ee~~|80<br>~~GG~~<br>~~GG~~|220<br>~~GG~~<br>~~GG~~|1<br>~~GG~~|0.1|20|
|BZT55C30<br>~~Re~~|28<br>~~Re~~|30<br>~~Ge~~|32<br>~~ee~~|5<br>~~ee~~|80<br>~~GG~~|220<br>~~GG~~|1|0.1|22|
|BZT55C33<br>~~Re~~<br>~~GG~~|31<br>~~Re~~<br>~~GG~~|33<br>~~Ge ~~<br>~~GG~~|35<br> ~~ee~~<br>~~GG~~|5<br>~~ee~~<br>~~GG~~|80<br>~~GG~~<br>~~GG~~|220<br>~~GG~~<br>~~GG~~|1<br>~~GG~~|0.1<br>~~GG~~|24<br>~~GG~~|
|BZT55C36<br>~~ee~~|34<br>~~ee~~|36<br>~~ee~~|38<br>~~ee ~~|5<br> ~~eG~~|80<br>~~eG~~|220<br>~~eG~~|1<br>~~eG~~|0.1|27|
|BZT55C39<br>~~ee~~|37<br>~~ee~~|39<br>~~ee~~|41<br>~~ee ~~|2.5<br> ~~eG~~|90<br>~~eG~~|500<br>~~eG~~|0.5<br>~~eG~~|0.1|28|
|BZT55C43<br>~~ee~~|40<br>~~ee~~|43<br>~~ee~~|46<br>~~ee ~~|2.5<br> ~~eG~~|90<br>~~eG~~|600<br>~~eG~~|0.5<br>~~eG~~|0.1|32|
|BZT55C47<br>~~ee~~<br>~~pC~~|44<br>~~ee~~|47<br>~~ee~~|50<br>~~ee ~~<br>~~ee~~|2.5<br> ~~eG~~<br>~~ee~~|110<br>~~eG~~<br>~~ee~~|700<br>~~eG~~<br>~~Q~~|0.5<br>~~eG~~<br>~~Q~~|0.1|35|
|BZT55C51<br>~~se~~<br>~~pC~~|48<br>~~se~~|51<br>~~se~~|54<br>~~se~~<br>~~ee~~|2.5<br>~~se~~<br>~~ee~~|125<br>~~se~~<br>~~ee~~|700<br>~~se~~<br>~~Q~~|0.5<br>~~se~~<br>~~Q~~|0.1<br>~~se~~|38<br>~~se~~|
|BZT55C56<br>~~pC~~<br>~~pC~~|52|56|60<br>~~ee~~|2.5<br>~~ee~~|135<br>~~ee~~|1,000<br>~~Q~~|0.5<br>~~Q~~|0.1|42|
|BZT55C62<br>~~pC~~<br>~~pC~~<br>~~pC~~|58|62|66<br>~~ee~~|2.5<br>~~ee~~|150<br>~~ee~~|1,000<br>~~Q~~|0.5<br>~~Q~~|0.1|47|
|BZT55C68<br>~~pC~~<br>~~pC~~<br>~~CT~~|64<br>~~CT~~|68|72|2.5|160|1,000|0.5|0.1|51|
|BZT55C75<br>~~pC~~<br>~~CT~~|70<br>~~CT~~|75|79|2.5|170|1,000|0.5|0.1|56|



2 Version: I2301 

## **BZT55C2V4 – BZT55C75** TAIWANSEMICONDUCTOR(i Taiwan Semiconductor 

## **Notes:** 

1. The Zener voltage (VZ) is tested under pulse condition of 30ms 

2. The device numbers listed have a standard tolerance on the nomial Zener voltage of ±5% 

3. For detailed information on price, availability and delivery of nominal Zener voltages between the voltages shown and tighter voltage tolerances, contact your nearest Taiwan Semiconductor representative 

4. The Zener impedance is derived from the 60-cycle 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 to IZT or IZK 

|ORDERING INFORMATION|ORDERING INFORMATION|ORDERING INFORMATION|
|---|---|---|
|ORDERING CODE(1)(2)|PACKAGE|PACKING|
|BZT55Cx L0|QMMELF|10,000 / 13" Tape & Reel|
|BZT55Cx L0G|QMMELF|10,000 / 13" Tape & Reel|



## **Notes:** 

1. "x" defines voltage from 2.4V (BZT55C2V4) to 75V (BZT55C75) 

2. Above ordering codes L0/L0G refer to physically identical parts without any differences 

3 Version: I2301 

|—_—_$_$_$_$____W@[{[__ **BZT55C2V4 – BZT55C75** Taiwan Semiconductor 

## CHARACTERISTICS CURVES 

(TA = 25°C unless otherwise noted) 

## **Fig.1 Typical Forward Characteristics** 

**Fig.2 Admissible Power Dissipation Curve** 

**==> picture [496 x 509] intentionally omitted <==**

**----- Start of picture text -----**<br>
1000<br>600<br>aeeees ane 500 Pie et<br>100 400<br>eeee<br>300<br>eee =FINH<br>10 200<br>See CH<br>=== ———— 100 eeeNN<br>0<br>1 ee a \<br>0 25 50 75 100 125 150 175<br>0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2<br>Forward Voltage (V)  Ambient Temperature ( [o] C)<br>      Fig.3 Typical Capacitance<br>1000<br>100<br>1V Bias<br>pt tT | LP PNA TTT<br>10<br>|See<br>Bias at 50% of VZ  (Nom)<br>a<br>1 ee<br>1 10 100<br>Zener Voltage (V)<br>Forward Current (mA)  Power Dissipation (mW)<br>Capacitance (pF)<br>**----- End of picture text -----**<br>


4 Version: I2301 

= **BZT55C2V4 – BZT55C75** Taiwan Semiconductor 

## PACKAGE OUTLINE DIMENSIONS 

**==> picture [49 x 9] intentionally omitted <==**

**----- Start of picture text -----**<br>
QMMELF<br>**----- End of picture text -----**<br>


**==> picture [129 x 129] intentionally omitted <==**

**----- Start of picture text -----**<br>
Ø  [1.60]<br>1.40<br>| |—<br>1.80 TYP<br>**----- End of picture text -----**<br>


**==> picture [132 x 158] intentionally omitted <==**

**----- Start of picture text -----**<br>
3.70<br>3.30<br>0.45<br>0.20<br>“a<br>CATHODE INDICATOR<br>**----- End of picture text -----**<br>


**==> picture [22 x 9] intentionally omitted <==**

**----- Start of picture text -----**<br>
3.50<br>**----- End of picture text -----**<br>


## NOTES: UNLESS OTHERWISE SPECIFIED 

1.  ALL DIMENSIONS ARE IN MILLIMETERS. 

2.  DIMENSIONING AND TOLERANCING PER ASME Y14.5M-1994. 

3.  PACKAGE OUTLINE  REFERENCE: JEDEC DO-213, VARIATION AA, ISSUE D. 

4.  DWG NO. REF: HQ2SD07-QMMELF-061 REV A. 

**==> picture [106 x 84] intentionally omitted <==**

**----- Start of picture text -----**<br>
2.00<br>| be<br>1.25<br>a<br>**----- End of picture text -----**<br>


## SUGGESTED PAD LAYOUT 

5 Version: I2301 

**BZT55C2V4 – BZT55C75** Taiwan Semiconductor 

SEMICONDUCTOR(i 

## Notice 

Specifications of the products displayed herein are subject to change without notice. TSC or anyone on its behalf assumes no responsibility or liability for any errors or inaccuracies. 

Purchasers are solely responsible for the choice, selection, and use of TSC products and TSC assumes no liability for application assistance or the design of Purchasers’ products. 

Information contained herein is intended to provide a product description only. No license, express or implied, to any intellectual property rights is granted by this document. Except as provided in TSC’s terms and conditions of sale for such products, TSC assumes no liability whatsoever, and disclaims any express or implied warranty, relating to sale and/or use of TSC products including liability or warranties relating to fitness for a particular purpose, merchantability, or infringement of any patent, copyright, or other intellectual property right. 

The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications. Customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify TSC for any damages resulting from such improper use or sale. 

6 Version: I2301

Updated at April 28, 2026

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