UCLAMP1201H.TCT

TVS Diode, µClamp, Unidirectional, 12 V, 25 V, SOD-523, 2 Pins

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Manufacturer: SEMTECH
Product type: TVS Diodes
No. of Pins: 2Pins
TVS Polarity: Unidirectional
Product Range: µClamp
Diode Mounting: Surface Mount
Diode Case Style: SOD-523
Clamping Voltage Max: 25V
Reverse Standoff Voltage: 12V
Maximum Breakdown Voltage: 13.3V
Minimum Breakdown Voltage: 13.3V
Operating Temperature Max: 125°C
Peak Pulse Power Dissipation: 200W

Delivery and price
Units per pack	5000
Price	0.185 €
Current stock	1000+
Lead time	7 days

Datasheet

uClamp1201H µClamp[TM] 1-Line ESD Protection 

## **PROTECTION PRODUCTS** - MicroClamp[TM] 

## 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 PDAs.  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] 1201H is in a 2-pin, RoHS compliant, SOD-523 package.  The leads are finished with leadfree matte tin.  Each device will protect one line operating at 12 volts.  It gives the designer the flexibility to protect single lines in applications where arrays are not practical.  They may be used to meet the ESD immunity requirements of IEC 61000-4-2, Level 4 (15kV air, 8kV contact discharge).  The combination of small size and high ESD surge capability makes them ideal for use in portable applications such as cellular phones, digital cameras, and MP3 players. 

## 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: 12V 

- 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 

- RoHS Compliant 

## Applications 

- Cellular Handsets & Accessories 

- Personal Digital Assistants (PDAs) 

- 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 

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


www.semtech.com 

Revision 03/08/2005 

1 

uClamp1201H 

## 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>0<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|8|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||||2<br>1|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>=|3<br>.<br>3<br>1|||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>2<br>1<br>=|||1|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>=||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>1<br>=<br>p<br>s<br>µ<br>0<br>2<br>/<br>8<br>=|||9<br>1|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>8<br>=<br>p<br>s<br>µ<br>0<br>2<br>/<br>8<br>=|||5<br>2|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|F<br>p|



www.semtech.com 

 2005 Semtech Corp. 

2 

uClamp1201H 

## PROTECTION PRODUCTS 

## Typical Characteristics 

Non-Repetitive Peak Pulse Power vs. Pulse Time 

## Power Derating Curve 

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**----- Start of picture text -----**<br>
10<br>PSST TTT<br>1<br>CI TSS<br>0.1<br>A A<br>See ee et eerett<br>PT ie<br>0.01 a a ll<br>0.1 1 10 100 1000<br>Pulse Duration - tp (us)<br> (kW)<br>PP<br>Peak Pulse Power - P<br>**----- End of picture text -----**<br>


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**----- Start of picture text -----**<br>
110<br>100<br>90<br>80 es A ee<br>70<br>60<br>50<br>40 Jf pt<br>30 PN<br>20<br>rs ee a eS ee<br>100 eees es<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>


## Clamping Voltage vs. Peak Pulse Current 

Forward Voltage vs. Forward Current 

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**----- Start of picture text -----**<br>
25<br>oe 3.5 a<br>3<br>20<br>ptf ff een ft<br>2.5<br>err Be [Seen]<br>15<br>SSGrt 2 a a COeaaaCG<br>1.5<br>10<br>1<br>Eee eee21200000000 :22c Waveform MN = = === = = === = == === Waveform<br>5 PoyRr[ 7 TT Jt tT tT TT tT tT tT tT TT]  Parameters:tr = 8µs 0.5 Poa  Parameters:tr = 8µs<br>PEEEEEEE EEE Er td = 20µs SaaS td = 20µs<br>0 Pit oT et ee TELL ryt 0 ———————————<br>0 1 2 3 4 5 6 7 8 9 10 0 1 2 3 4 5 6 7 8<br>Peak Pulse Current - IPP (A) Forward Current - IF (A)<br> (V)<br>C<br> (V)F<br>Clamping Voltage - V Forward Voltage - V<br>**----- End of picture text -----**<br>


Junction Capacitance vs. Reverse Voltage 

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

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**----- Start of picture text -----**<br>
1.1<br>f = 1 MHz<br>1<br>0.9<br>0.8 eG<br>0.7<br>0.6<br>0.5<br>0.4<br>0.3<br>0.2<br>0.1<br>0<br>0 1 2 3 4 5<br>Reverse Voltage - VR (V)<br>Normalized Capacitance<br>**----- End of picture text -----**<br>


www.semtech.com 

 2005 Semtech Corp. 

3 

uClamp1201H 

## 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. 

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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 

4 

 2005 Semtech Corp. 

uClamp1201H 

## PROTECTION PRODUCTS 

## Applications Information - Spice Model 

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**----- Start of picture text -----**<br>
0.5 nH<br>**----- End of picture text -----**<br>


Figure 1 - uClamp1201H Spice Model 

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|---|---|---|
|r<br>e<br>t<br>e<br>m<br>a<br>r<br>a<br>P|ti<br>n<br>U|)<br>S<br>V<br>T<br>(<br>1<br>D|
|S<br>I|p<br>m<br>A|4<br>1<br>-<br>E<br>8<br>4<br>.<br>1|
|V<br>B|tlo<br>V|3<br>3<br>.<br>5<br>1|
|J<br>V|tlo<br>V|3<br>2<br>7<br>.<br>0|
|S<br>R|m<br>h<br>O|2<br>7<br>7<br>.<br>0|
|V<br>B<br>I|p<br>m<br>A|3<br>-<br>E<br>0<br>.<br>1|
|O<br>J<br>C|d<br>a<br>r<br>a<br>F|2<br>1<br>-<br>E<br>2<br>5|
|T<br>T|c<br>e<br>s|9<br>-<br>E<br>1<br>4<br>5<br>.<br>2|
|M|--|8<br>6<br>2<br>.<br>0|
|N|--|1.<br>1|
|G<br>E|V<br>e|1<br>1.<br>1|



www.semtech.com 

 2005 Semtech Corp. 

5 

uClamp1201H 

## PROTECTION PRODUCTS 

## Outline Drawing - SOD-523 

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**----- Start of picture text -----**<br>
E<br>E1 B DIMENSIONS<br>DIM MININCHESNOM MAX MINMILLIMETERSNOM MAX<br>Abc .009.019.003 .023-- .013.008.027 0.250.500.10 0.60-- 0.350.200.70<br>D .027 .031 .035 0.70 0.80 0.90<br>D EE1 .059.043 .063.047 .067.051 1.501.10 1.201.60 1.701.30<br>L .003 .008 .011 0.10 0.20 0.30<br>2X b aaaL1 .003 .005.008 .008 0.10 0.150.20 0.20<br>aaa C A B<br>A<br>A c<br>SEATING<br>PLANE<br>C L<br>NOTES: L1<br>1. CONTROLLING DIMENSIONS ARE IN MILLIMETERS (ANGLES IN DEGREES).<br>2. DIMENSIONS "E1" AND "D" DO NOT INCLUDE MOLD FLASH, PROTRUSIONS<br>OR GATE BURRS.<br>**----- End of picture text -----**<br>


## Land Pattern - SOD-523 

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**----- Start of picture text -----**<br>
Y<br>DIMENSIONS<br>X DIM INCHES MILLIMETERS<br>C (.057) (1.45)<br>G G .024 0.60<br>X .018 0.45<br>C Y .033 0.85<br>Z .090 2.30<br>Z<br>**----- End of picture text -----**<br>


NOTES: 

1. THIS LAND PATTERN IS FOR REFERENCE PURPOSES ONLY CONSULT YOUR MANUFACTURING GROUP TO ENSURE YOUR COMPANY'S MANUFACTURING GUIDELINES ARE MET. 

www.semtech.com 

 2005 Semtech Corp. 

6 

uClamp1201H 

## PROTECTION PRODUCTS 

## Marking Code 

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**----- Start of picture text -----**<br>
2H<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>2<br>1|T<br>C|V<br>2<br>1||H<br>2||0<br>0<br>0<br>,<br>3||h<br>c<br>nI<br>7|



Note: Devices are lead-free 

MicroClamp, uClamp and µClamp are marks of Semtech Corporation 

## Tape and Reel Specification 

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Tape Specifications 

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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 

 2005 Semtech Corp. 

7

Updated at February 9, 2023

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