Image not available
Illustrative purposes only
STF203-22.TCT
ESD Protection Device, Array, SC-70, 6 Pins, 5.25 V
⚠️ Reference pricing provided. In case of supply shortages, we will connect you with our trusted procurement partners to ensure your project's continuity.
- Manufacturer: SEMTECH
- Product type: Integrated Passive Filters
- EMI Filter Type:USB Upstream and Terminator EMI Filter with ESD; No. of Data Lines:2 Data Lines; Filter Circuit:C-R-C Pi Filter; Filter; Available until stocks are exhausted Alternative available
- No. of Pins: 6Pins
- Product Range: -
- Filter Circuit: C-R-C Pi Filter
- EMI Filter Type: USB Upstream and Terminator EMI Filter with ESD
- No. of Data Lines: 2 Data Lines
- Filter Case / Package: SOT-23
| Delivery and price | |
|---|---|
| Units per pack | 1500 |
| Price | 0.336 € |
| Current stock | 1000+ |
| Lead time | 7 days |
Datasheet
STF203-15 THRU STF203-33 USB Upstream Port Filter and TVS For EMI Filtering and ESD Protection ## **PROTECTION PRODUCTS** ## Description The STF203 is a combination EMI filter and line termination device with integrated TVS diodes for use on upstream USB ports. It is constructed using a proprietary technology that allows passive components and TVS diodes to be integrated in the same package. Each device will provide termination, filtering, and ESD protection for one upstream USB port. The STF203 is an easily implemented solution for meeting the requirements of revision 1.1 of the Universal Serial Bus specification. Line termination is achieved with series resistors on both the D+ and D- USB lines. The value of series resistance added to the output impedance of the USB driver must be as close to possible to the 45Ω characteristic impedance of the cable (90Ω balanced) to minimize transmission line reflections. They are available with resistor values of 15Ω (STF203-15), 22Ω (STF203-22), and 33Ω (STF203-33). The 1.5kΩ pull-up resistor is required by the USB specification to identify the equipment as either a full-speed (connected to D+ line) or low-speed (connected to D- line) device. The 47pF capacitors are required to bypass high frequency energy to ground and to control the edge rate of the USB signals. The TVS diodes provide ESD protection of both (D+ and D-) data lines and the voltage bus (VBUS). The TVS diodes on the input/output pins provide suppression of ESD voltages in excess of ±15kV (air discharge) and ±8kV (contact discharge) per IEC 61000-4-2, level 4. The TVS diode on the VBUS pin will suppress ESD discharges in excess of 25kV per IEC 61000-4-2. ## Circuit Diagram **==> picture [265 x 199] intentionally omitted <==** **----- Start of picture text -----**<br> 6 1<br>.<br>2<br>5<br>4 3<br>**----- End of picture text -----**<br> ## Features - Bidirectional EMI/RFI filtering and line termination with integrated ESD protection - ESD protection for USB power (VBUS) and data lines (D+ and D-) to IEC 61000-4-2 (ESD) ±15kV (air), ±8kV (contact) IEC 61000-4-4 (EFT) 40A (5/50ns) - Filtering and termination for one USB port - Series resistors: 15Ω, 22Ω, and 33Ω - Low TVS operating voltage (5.25V) - Low leakage current - Small SC70-6L package - Solid-state technology ## Mechanical Characteristics - EIAJ SC70-6L package - RoHS/WEEE Compliant - Molding compound flammability rating: UL 94V-0 - Marking : Marking Code - Packaging : Tape and Reel per EIA 481 ## Applications - USB Ports - Cellular Handsets - PDAs - Pagers - Digital Cameras - PC Peripherals - MP3 Players ## Schematic and PIN Configuration **==> picture [264 x 199] intentionally omitted <==** **----- Start of picture text -----**<br> D In/Out D In/Out<br>D In/Out D In/Out<br>SC70-6L (Top View)<br>**----- End of picture text -----**<br> www.semtech.com Revision 03/22/2006 1 STF203-15 THRU STF203-33 ## PROTECTION PRODUCTS ## Absolute Maximum Rating |PROTECTION PRODUCTS<br>Absolute Maximum Rating|PROTECTION PRODUCTS<br>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|| |r<br>e<br>w<br>o<br>P<br>e<br>t<br>a<br>t<br>S<br>-y<br>d<br>a<br>e<br>t<br>S|||P S<br>S||0<br>0<br>1|||W<br>m|| |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>e<br>g<br>r<br>a<br>h<br>c<br>si<br>D<br>riA<br>D<br>S<br>E<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>e<br>g<br>r<br>a<br>h<br>c<br>si<br>D<br>tc<br>a<br>t<br>n<br>o<br>C<br>D<br>S<br>E|||V<br>D<br>S<br>E||6<br>1<br>0<br>1|||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>0<br>4<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|||||||||| |X<br>X<br>-<br>3<br>0<br>2<br>F<br>T<br>S|||||||||| |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<br>S<br>V<br>T|V<br>M<br>W<br>R||||||5<br>2<br>.<br>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<br>S<br>V<br>T|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<br>S<br>V<br>T|IR|V<br>M<br>W<br>R<br>C<br>°<br>5<br>2<br>=<br>T<br>,V<br>5<br>2<br>.<br>5<br>=<br>a<br>t<br>a<br>d<br>d<br>n<br>a<br>n<br>e<br>e<br>w<br>t<br>e<br>B<br>d<br>n<br>u<br>o<br>r<br>G<br>d<br>n<br>a<br>nip<br>)-<br>D<br>,<br>+<br>D<br>(|||||5||A<br>µ| |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<br>S<br>V<br>T|IR|e<br>niL<br>h<br>c<br>a<br>E|||||1||A<br>µ| |)<br>5<br>1<br>-<br>3<br>0<br>2<br>F<br>T<br>S<br>(<br>e<br>c<br>n<br>a<br>tsis<br>e<br>R<br>s<br>eir<br>e<br>S|RS|e<br>niL<br>h<br>c<br>a<br>E||5<br>.<br>3<br>1||5<br>1|5<br>.<br>6<br>1||s<br>m<br>h<br>O| |)<br>2<br>2<br>-<br>3<br>0<br>2<br>F<br>T<br>S<br>(<br>e<br>c<br>n<br>a<br>tsis<br>e<br>R<br>s<br>eir<br>e<br>S|RS|e<br>niL<br>h<br>c<br>a<br>E||0<br>2||2<br>2|4<br>2||s<br>m<br>h<br>O| |)<br>3<br>3<br>-<br>3<br>0<br>2<br>F<br>T<br>S<br>(<br>e<br>c<br>n<br>a<br>tsis<br>e<br>R<br>s<br>eir<br>e<br>S|RS|e<br>niL<br>h<br>c<br>a<br>E||0<br>3||3<br>3|6<br>3||s<br>m<br>h<br>O| |e<br>c<br>n<br>a<br>tsis<br>e<br>R<br>p<br>U<br>llu<br>P|R U<br>P|||5<br>3<br>.<br>1||5<br>.<br>1|5<br>6<br>.<br>1||s<br>m<br>h<br>O<br>k| |r<br>o<br>tic<br>a<br>p<br>a<br>C|C|e<br>niL<br>h<br>c<br>a<br>E||||7<br>4|||F<br>p| |e<br>c<br>n<br>a<br>tic<br>a<br>p<br>a<br>C<br>la<br>t<br>o<br>T|C<br>T<br>O<br>T|r<br>o<br>t<br>u<br>p<br>nI<br>n<br>e<br>e<br>w<br>t<br>e<br>B<br>d<br>n<br>u<br>o<br>r<br>G<br>r<br>o<br>t<br>u<br>p<br>t<br>u<br>O<br>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 2006 Semtech Corp. 2 STF203-15 THRU STF203-33 ## PROTECTION PRODUCTS ## Typical Characteristics ## ESD Clamping (8kV Contact) ## ESD Clamping (15kV Air) ## Typical Insertion Loss ## Analog Crosstalk (D+ to D-) **==> picture [491 x 208] intentionally omitted <==** **----- Start of picture text -----**<br> CH1 S21 LOG 3 dB / REF 0 dB CH1 S21 log MAG 20 dB/ REF 0 dB<br>1: -20.394 dB<br>800 MHz<br>PRm<br>2: -15.035 dB<br> 0 dB 1.8 GHz<br>-3 dB 3: -14.781 dB<br>2.5 GHz<br> -6 dB<br> -9 dB MTC TM TENETIL fo te iy<br> -12 dB ATE TTT AIL | e ]<br>3<br> -15 dB ATTIC ITLenV) TT<br>2<br> -18 dB<br> -21 dB iT 1 LETITIA<br> -24 dB iia a ot TLE<br>1 10 100 1 3 ee Sa<br> MHz MHz MHz GHz GHz START .030 000 MHz STOP 3 000.000 000 MHz<br>START. 030 MHz STOP 3000.000000 MHz<br>**----- End of picture text -----**<br> www.semtech.com 2006 Semtech Corp. 3 STF203-15 THRU STF203-33 ## PROTECTION PRODUCTS ## Applications Information ## Device Connection The STF203 is designed to provide termination, EMI filtering and ESD protection for one USB port. The device is connected as follows: - **1 .** Full-Speed Devices: For full-speed devices the pull-up resistor is connected to the D+ line. Route the D+ line from the connector to pin 1 of the STF203. Pin 6 is connected to the D+ line of the IC. Route the D- line from the connector to pin 3. Pin 4 is connected to the D- line of the IC. Pin 5 is connected to the voltage supply line (VBUS). Pin 2 is connected to ground. Note that the input and output connections may be reversed if necessary (See Figure 3). - **2 .** Low-Speed Devices **:** For low speed devices the pull-up resistor is connected to the D- line. Route the D- line from the connector to pin 1 of the STF203. Pin 6 is connected to the D- line of the IC. Route the D+ line from the connector to pin 3. Pin 4 is connected to the D+ line of the IC. Pin 5 is connected to the voltage supply line (VBUS). Pin 2 is connected to ground. Note that the input and output connections may be reversed if necessary (See Figure 4). ## USB Port Design Considerations The Universal Serial Bus (USB) specification requires termination and filtering components for proper operation. In addition, an open USB socket is vulnerable to hazardous ESD discharges in excess of 15kV. These discharges can occur on the data lines or the voltage bus. The STF203 is an easily implemented solution that is designed to meet the termination and EMI filter requirements of the USB specification revision 1.1. It also provides ESD protection to IEC 61000-4-2, level 4. USB line termination is achieved with series resistors on both the D+ and D- lines. These resistors preserve signal integrity by matching the cable impedance to that of the differential driver. A 1.5kΩ pull-up resistor is used to identify an upstream port on either the D+ (full speed devices) or the D- (low speed devices) data line. Capacitors are used for EMI suppression. TVS diodes provide ESD protection of both (D+ and D-) data lines and the voltage bus (VBUS). The STF203 integrates all of these components in a small SC-70 package. This integrated solution simplifies design and requires minimal board space. Figure 1 - Preferred Connection Diagram (Full Speed Devices) **==> picture [229 x 96] intentionally omitted <==** **----- Start of picture text -----**<br> From Connector<br>1 STF203 6<br>2 5<br>3 4<br>**----- End of picture text -----**<br> Figure 2 - Preferred Connection Diagram (Low Speed Devices) **==> picture [229 x 96] intentionally omitted <==** **----- Start of picture text -----**<br> From Connector<br>1 STF203 6<br>2 5<br>3 4<br>**----- End of picture text -----**<br> Figure 3 - Alternate Connection Diagram (Full Speed Devices) **==> picture [232 x 98] intentionally omitted <==** **----- Start of picture text -----**<br> From Connector<br>1 STF203 6<br>2 5<br>3 4<br>**----- End of picture text -----**<br> Figure 4 - Alternate Connection Diagram (Low Speed Devices) **==> picture [232 x 98] intentionally omitted <==** **----- Start of picture text -----**<br> From Connector<br>1 STF203 6<br>2 5<br>3 4<br>**----- End of picture text -----**<br> www.semtech.com 4 2006 Semtech Corp. STF203-15 THRU STF203-33 ## PROTECTION PRODUCTS ## Outline Drawing - SC70 6L **==> picture [333 x 208] intentionally omitted <==** **----- Start of picture text -----**<br> A<br>e1 D<br>N<br>2X E/2 SEE DETAIL A<br>EI E<br>SIDE VIEW<br>ccc C 1 2<br>2X N/2 TIPS<br>e H<br>B<br>GAGE c<br>PLANE<br>D<br>0.15<br>L<br>01<br>aaa C<br>A2 A (L1)<br>SEATING DETAIL A<br>PLANE<br>C A1<br>bxN<br>bbb C A-B D<br>**----- End of picture text -----**<br> **==> picture [136 x 158] intentionally omitted <==** **----- Start of picture text -----**<br> DIMENSIONS<br>INCHES MILLIMETERS<br>DIM<br>MIN NOM MAX MIN NOM MAX<br>A - - .043 - - 1.10<br>A1 .000 - .004 0.00 - 0.10<br>A2 .028 .035 .039 0.70 0.90 1.00<br>b .006 - .012 0.15 - 0.30<br>c .003 - .009 0.08 - 0.22<br>D .075 .079 .083 1.90 2.00 2.10<br>E1 .045 .049 .053 1.15 1.25 1.35<br>E .083 BSC 2.10 BSC<br>e .026 BSC 0.65 BSC<br>e1 .051 1.30 BSC<br>L .010 .014 .018 0.26 0.36 0.46<br>L1 (.017) (0.42)<br>N 6 6<br>01 0° - 8° 0° - 8°<br>aaa .004 0.10<br>bbb .004 0.10<br>ccc .012 0.30<br>**----- End of picture text -----**<br> NOTES: 1. CONTROLLING DIMENSIONS ARE IN MILLIMETERS (ANGLES IN DEGREES). 2. DATUMS AND TO BE DETERMINED AT DATUM PLANE-A-B-H- 3. DIMENSIONS "E1" AND "D" DO NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS. 4. REFERENCE JEDEC STD MO-203, VARIATION AB. ## Land Pattern - SC70 6L **==> picture [316 x 99] intentionally omitted <==** **----- Start of picture text -----**<br> X<br>DIMENSIONS<br>DIM INCHES MILLIMETERS<br>C (.073) (1.85)<br>G .039 1.00<br>C G Z<br>P .026 0.65<br>X .016 0.40<br>Y Y .033 0.85<br>Z .106 2.70<br>P<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 2006 Semtech Corp. 5 STF203-15 THRU STF203-33 ## PROTECTION PRODUCTS ## Marking |r<br>e<br>b<br>m<br>u<br>N<br>tr<br>a<br>P|s<br>eir<br>e<br>S<br>r<br>o<br>t<br>sis<br>e<br>R|g<br>n<br>i<br>k<br>r<br>a<br>M<br>e<br>d<br>o<br>C| |---|---|---| |5<br>1<br>-<br>3<br>0<br>2<br>F<br>T<br>S|5<br>1<br>Ω|5<br>1<br>3| |2<br>2<br>-<br>3<br>0<br>2<br>F<br>T<br>S|2<br>2<br>Ω|2<br>2<br>3| |3<br>3<br>-<br>3<br>0<br>2<br>F<br>T<br>S|3<br>3<br>Ω|3<br>3<br>3| **==> picture [106 x 114] intentionally omitted <==** **----- Start of picture text -----**<br> 6 5 4<br>XXX<br>1 2 3<br>**----- End of picture text -----**<br> ## Ordering Information |r<br>e<br>b<br>m<br>u<br>N<br>tr<br>a<br>P|h<br>si<br>ni<br>F<br>d<br>a<br>e<br>L|r<br>e<br>p<br>y<br>t<br>Q<br>l<br>e<br>e<br>R|e<br>zi<br>S<br>l<br>e<br>e<br>R| |---|---|---|---| |C<br>T.<br>5<br>1<br>-<br>3<br>0<br>2<br>F<br>T<br>S|b<br>P<br>n<br>S|0<br>0<br>0<br>,<br>3|”<br>7| |C<br>T.<br>2<br>2<br>-<br>3<br>0<br>2<br>F<br>T<br>S|b<br>P<br>n<br>S|0<br>0<br>0<br>,<br>3|”<br>7| |C<br>T.<br>3<br>3<br>-<br>3<br>0<br>2<br>F<br>T<br>S|b<br>P<br>n<br>S|0<br>0<br>0<br>,<br>3|”<br>7| |T<br>C<br>T.<br>5<br>1<br>-<br>3<br>0<br>2<br>F<br>T<br>S|e<br>e<br>rf<br>b<br>P|0<br>0<br>0<br>,<br>3|”<br>7| |T<br>C<br>T.<br>2<br>2<br>-<br>3<br>0<br>2<br>F<br>T<br>S|e<br>e<br>rf<br>b<br>P|0<br>0<br>0<br>,<br>3|”<br>7| |T<br>C<br>T.<br>3<br>3<br>-<br>3<br>0<br>2<br>F<br>T<br>S|e<br>e<br>rf<br>b<br>P|0<br>0<br>0<br>,<br>3|”<br>7| Note: Pb free finish is matte tin Note: XXX = Marking Code ## Contact Information Semtech Corporation Protection Products Division 200 Flynn Road, Camarillo, CA 93012 Phone: (805)498-2111 FAX (805)498-3804 www.semtech.com 2006 Semtech Corp. 6
Updated at March 27, 2026
About Novapart
Novapart is a B2B electronic component broker specialising in stock shortages and cost reduction. We source hard-to-find parts and identify compliant alternatives across a catalogue of 410,000+ components from 500+ manufacturers.
Learn more →Stock Shortage Specialist
When a component is unavailable, discontinued or has an unacceptable lead time, we tap into our network of vetted European and Asian distributors to source what you need — without compromising on quality or traceability.
Request a quote →Compliant Alternatives
We identify pin-to-pin, electrically equivalent substitutes that meet the same certifications (RoHS, AEC-Q100, REACH) as your original specification — validated against datasheets, not just part numbers. Often at a lower cost.
BOM Analysis service →