UCLAMP0501H.TCT

## uClamp0501H µClamp[TM] 1-Line ESD protection 

## **PROTECTION PRODUCTS** - MicroClamp 

## Description 

The µClamp[TM] series of TVS arrays are designed to protect sensitive electronics from damage or latch-up due to ESD. It is designed to replace multilayer varistors (MLVs) in portable applications such as cell phones, notebook computers, and PDA’s.  It features large cross-sectional area junctions for conducting high transient currents.  It offers superior electrical characteristics such as lower clamping voltage and no device degradation when compared to MLVs. They offer desirable characteristics for board level protection including fast response time, low operating and clamping voltage, and no device degradation. 

The µclamp[TM] 0501H is in a ultra-small SOD-523 package ideal for use in portable electronics such as cell phones, PDA’s, notebook computers, and digital cameras.  It will protect one unidirectional line operating at 5 volts.  It gives the designer the flexibility to protect one line in applications where arrays are not practical.  Additionally, it may be “sprinkled” around the board in applications where board space is at a premium. 

This device may be used to meet the ESD immunity requirements of IEC 61000-4-2, Level 4 (15kV air, 8kV contact discharge). 

## Features 

- ! Transient protection for data lines to IEC 61000-4-2 (ESD) 15kV (air), 8kV (contact) IEC 61000-4-4 (EFT) 40A (tp = 5/50ns) Cable Discharge Event (CDE) 

- ! Ultra-small SOD-523 package (1.7 x 0.9 x 0.7mm) 

- ! Protects one I/O or power line 

- ! Low clamping voltage 

- ! Working voltage:  5V 

- ! Low leakage current 

- ! Solid-state silicon-avalanche technology 

## Mechanical Characteristics 

- ! EIAJ SOD-523 package 

- ! Molding compound flammability rating: UL 94V-0 

- ! Marking : Marking code, cathode band 

- ! Packaging : Tape and Reel per EIA 481 

- ! Lead Finish: Matte tin 

## Applications 

- ! Cellular Handsets & Accessories 

- ! Cordless Phones 

- ! Personal Digital Assistants (PDA’s) 

- ! Notebooks & Handhelds 

- ! Portable Instrumentation 

- ! Digital Cameras 

- ! Peripherals 

- ! MP3 Players 

**==> picture [265 x 233] intentionally omitted <==**

**----- Start of picture text -----**<br>
Dimensions<br>1.70<br>0.35 1.30<br>0.9<br>0.70<br>Maximum Dimensions  (mm)<br>**----- End of picture text -----**<br>


## Schematic & PIN Configuration 

**==> picture [264 x 209] intentionally omitted <==**

**----- Start of picture text -----**<br>
SOD-523  (Top View)<br>**----- End of picture text -----**<br>


www.semtech.com 

Revision 10/08/2003 

1 

uClamp0501H 

## PROTECTION PRODUCTS Absolute Maximum Rating 

|PROTECTION PRODUCTS<br>Absolute Maximum Rating||||
|---|---|---|---|
|g<br>nit<br>a<br>R|l<br>o<br>b<br>m<br>y<br>S|e<br>ul<br>a<br>V|s<br>ti<br>n<br>U|
|)s<br>µ<br>0<br>2<br>/<br>8<br>=<br>p<br>t(<br>r<br>e<br>w<br>o<br>P<br>e<br>slu<br>P<br>k<br>a<br>e<br>P|P k<br>p|0<br>4<br>2|stt<br>a<br>W|
|(<br>t<br>n<br>e<br>rr<br>u<br>C<br>e<br>slu<br>P<br>k<br>a<br>e<br>P<br>m<br>u<br>m<br>ix<br>a<br>M<br>)s<br>µ<br>0<br>2<br>/<br>8<br>=<br>p<br>t|I p<br>p|6<br>1|s<br>p<br>m<br>A|
|)riA<br>(<br>2<br>-<br>4<br>-<br>0<br>0<br>0<br>1<br>6<br>C<br>EI<br>r<br>e<br>p<br>D<br>S<br>E<br>)tc<br>a<br>t<br>n<br>o<br>C<br>(<br>2<br>-<br>4<br>-<br>0<br>0<br>0<br>1<br>6<br>C<br>EI<br>r<br>e<br>p<br>D<br>S<br>E|V P<br>P|0<br>2<br>-/<br>+<br>5<br>1<br>-/<br>+|V<br>k|
|e<br>r<br>u<br>t<br>a<br>r<br>e<br>p<br>m<br>e<br>T<br>g<br>nir<br>e<br>dlo<br>S<br>d<br>a<br>e<br>L|TL|).c<br>e<br>s<br>0<br>1<br>(<br>0<br>6<br>2|C<br>°|
|e<br>r<br>u<br>t<br>a<br>r<br>e<br>p<br>m<br>e<br>T<br>g<br>nit<br>a<br>r<br>e<br>p<br>O|TJ|5<br>2<br>1<br>+<br>o<br>t<br>5<br>5<br>-|C<br>°|
|e<br>r<br>u<br>t<br>a<br>r<br>e<br>p<br>m<br>e<br>T<br>e<br>g<br>a<br>r<br>o<br>t<br>S|T<br>G<br>T<br>S|0<br>5<br>1<br>+<br>o<br>t<br>5<br>5<br>-|C<br>°|



## Electrical Characteristics (T=25[o] C) 

|Electrical Characteristics (T=25oC)|Electrical Characteristics (T=25oC)|Electrical Characteristics (T=25oC)|Electrical Characteristics (T=25oC)|Electrical Characteristics (T=25oC)|Electrical Characteristics (T=25oC)|Electrical Characteristics (T=25oC)|
|---|---|---|---|---|---|---|
||||||||
|r<br>e<br>t<br>e<br>m<br>a<br>r<br>a<br>P|l<br>o<br>b<br>m<br>y<br>S|s<br>n<br>oiti<br>d<br>n<br>o<br>C|m<br>u<br>m<br>i<br>n<br>i<br>M|l<br>a<br>ci<br>p<br>y<br>T|m<br>u<br>m<br>ix<br>a<br>M|s<br>ti<br>n<br>U|
|e<br>g<br>a<br>tlo<br>V<br>ff<br>O<br>-<br>d<br>n<br>a<br>t<br>S<br>e<br>sr<br>e<br>v<br>e<br>R|V<br>M<br>W<br>R||||5|V|
|e<br>g<br>a<br>tlo<br>V<br>n<br>w<br>o<br>d<br>k<br>a<br>e<br>r<br>B<br>e<br>sr<br>e<br>v<br>e<br>R|V R<br>B|It<br>A<br>m<br>1<br>=|6|||V|
|t<br>n<br>e<br>rr<br>u<br>C<br>e<br>g<br>a<br>k<br>a<br>e<br>L<br>e<br>sr<br>e<br>v<br>e<br>R|IR|V<br>M<br>W<br>R<br>C<br>°<br>5<br>2<br>=<br>T<br>,V<br>5<br>=|||5|A<br>µ|
|e<br>g<br>a<br>tlo<br>V<br>d<br>r<br>a<br>w<br>r<br>o<br>F|VF|IF<br>A<br>m<br>0<br>1<br>=||0<br>8<br>.<br>0||V|
|e<br>g<br>a<br>tlo<br>V<br>g<br>nip<br>m<br>alC|VC|I P<br>P<br>t<br>,<br>A<br>5<br>=<br>p<br>s<br>µ<br>0<br>2<br>/<br>8<br>=|||8<br>.<br>9|V|
|e<br>g<br>a<br>tlo<br>V<br>g<br>nip<br>m<br>alC|VC|I P<br>P<br>t<br>,<br>A<br>6<br>1<br>=<br>p<br>s<br>µ<br>0<br>2<br>/<br>8<br>=|||5<br>.<br>2<br>1|V|
|e<br>c<br>n<br>a<br>tic<br>a<br>p<br>a<br>C<br>n<br>oitc<br>n<br>u<br>J|Cj|VR<br>z<br>H<br>M<br>1<br>=<br>f<br>,V<br>0<br>=|||0<br>6<br>1|F<br>p|



www.semtech.com 

 2003 Semtech Corp. 

2 

uClamp0501H 

## PROTECTION PRODUCTS 

## Typical Characteristics 

Non-Repetitive Peak Pulse Power vs. Pulse Time 

**==> picture [257 x 170] intentionally omitted <==**

**----- Start of picture text -----**<br>
10<br>PT PRA PET<br>1 a<br>Po es<br>PIP PETRA a<br>a Os<br>Pt TP<br>0.1 a rn<br>| | TeTT<br>0.01 a lll<br>0.1 1 10 100 1000<br>Pulse Duration - tp (µs)<br> (kW)<br>pk<br>Peak Pulse Power - P<br>**----- End of picture text -----**<br>


Clamping Voltage vs. Peak Pulse Current 

**==> picture [256 x 174] intentionally omitted <==**

**----- Start of picture text -----**<br>
12 [++ |__|<br>10<br>ee —<br>8 es es ee ee —<br>6<br>PES EEE EERE EEE<br>4<br>Se<br>a Waveform<br>GG GG<br>2  Parameters:<br>Se tr = 8µs<br>ee td = 20µs<br>0 a<br>0 2 4 6 8 10 12 14 16<br>Peak Pulse Current - IPP (A)<br> (V)<br>C<br>Clamping Voltage - V<br>**----- End of picture text -----**<br>


Junction Capacitance vs. Reverse Voltage 

## Power Derating Curve 

**==> picture [237 x 156] intentionally omitted <==**

**----- Start of picture text -----**<br>
110<br>100<br>9080 es ne<br>70 a<br>60<br>Nee eee<br>5040 aee esee ee ee ee<br>30 a A<br>20<br>10<br>0<br>a a ee ee ee<br>0 25 50 75 100 125 150<br>Ambient Temperature - TA ( [o] C)<br> PP<br>% of Rated Power or I<br>**----- End of picture text -----**<br>


Forward Voltage vs. Forward Current 

**==> picture [254 x 167] intentionally omitted <==**

**----- Start of picture text -----**<br>
4.5 Sa SSS SS SS<br>4<br>3.5 SalasSSS SSS SSS=<br>3 aCR CC ee(CSee GS (SS GG |<br>2.5<br>2<br>SSSpenn [eenaeee]  SSS SS —eee<br>1.5 _——— Waveform<br>=SSSSS=2=====<br>1 ee ee  Parameters:<br>tr = 8µs<br>=a25=———————<br>0.5 td = 20µs<br>pp<br>0 co<br>0 4 8 12 16<br>Forward Current - IF (A)<br> (V)Forward Voltage - VF<br>**----- End of picture text -----**<br>


ESD Clamping (8kV Contact per IEC 61000-4-2) 

**==> picture [253 x 169] intentionally omitted <==**

**----- Start of picture text -----**<br>
160<br>f = 1 MHz<br>140<br>120<br>100<br>80<br>60 a<br>0 1 2 3 4 5<br>Reverse Voltage - VR (V)<br>Capacitance - C (pF)j<br>**----- End of picture text -----**<br>


www.semtech.com 

 2003 Semtech Corp. 

3 

uClamp0501H 

## PROTECTION PRODUCTS 

## Applications Information 

## Device Connection Options 

## Circuit Diagram 

These TVS diodes are designed to protect one data, I/ O, or power supply line.  The device is unidirectional and may be used on lines where the signal polarity is above ground.  The cathode band should be placed towards the line that is to be protected. 

## Circuit Board Layout Recommendations for Suppression of ESD. 

**==> picture [43 x 42] intentionally omitted <==**

Good circuit board layout is critical for the suppression of ESD induced transients.  The following guidelines are recommended: 

- " Place the TVS near the input terminals or connectors to restrict transient coupling. 

- " Minimize the path length between the TVS and the protected line. 

- " Minimize all conductive loops including power and ground loops. 

- " The ESD transient return path to ground should be kept as short as possible. 

- " Never run critical signals near board edges. 

- " Use ground planes whenever possible. 

## Matte Tin Lead Finish 

Matte tin has become the industry standard lead-free replacement for SnPb lead finishes.  A matte tin finish is composed of 100% tin solder with large grains. Since the solder volume on the leads is small compared to the solder paste volume that is placed on the land pattern of the PCB, the reflow profile will be determined by the requirements of the solder paste. Therefore, these devices are compatible with both lead-free and SnPb assembly techniques.  In addition, unlike other lead-free compositions, matte tin does not have any added alloys that can cause degradation of the solder joint. 

www.semtech.com 

 2003 Semtech Corp. 

4 

uClamp0501H 

## PROTECTION PRODUCTS Outline Drawing 

**==> picture [540 x 311] intentionally omitted <==**

## Land Pattern 

**==> picture [540 x 287] intentionally omitted <==**

www.semtech.com 

 2003 Semtech Corp. 

5 

uClamp0501H 

## PROTECTION PRODUCTS 

## Marking Code 

**==> picture [48 x 29] intentionally omitted <==**

**----- Start of picture text -----**<br>
5H<br>**----- End of picture text -----**<br>


||Ordering Information|Ordering Information|Ordering Information|Ordering Information|Ordering Information|||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|||tr<br>a<br>P|r<br>e<br>b<br>m<br>u<br>N||g<br>n<br>i<br>k<br>r<br>o<br>W<br>e<br>g<br>a<br>tl<br>o<br>V|e<br>civ<br>e<br>D<br>g<br>n<br>i<br>k<br>r<br>a<br>M|||e<br>p<br>y<br>t<br>Q<br>l<br>e<br>e<br>R|r|l<br>e<br>e<br>R<br>e<br>zi<br>S|
||u|p<br>m<br>alC|T.<br>H<br>1<br>0<br>5<br>0|T<br>C|V<br>5||H<br>5||0<br>0<br>0<br>,<br>3||h<br>c<br>nI<br>7|



MicroClamp, uClamp and µClamp are trademarks of Semtech Corporation 

## Tape and Reel Specification 

**==> picture [462 x 184] intentionally omitted <==**

Tape Specifications 

**==> picture [308 x 86] intentionally omitted <==**

Device Orientation in Tape 

## Contact Information 

Semtech Corporation Protection Products Division 200 Flynn Rd., Camarillo, CA 93012 Phone: (805)498-2111   FAX (805)498-3804 

www.semtech.com 

 2003 Semtech Corp. 

6