{"id":1796,"date":"2026-05-12T07:01:42","date_gmt":"2026-05-12T07:01:42","guid":{"rendered":"https:\/\/materialparts.com\/prtr5v0u2x\/"},"modified":"2026-05-12T07:18:25","modified_gmt":"2026-05-12T07:18:25","slug":"prtr5v0u2x","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/prtr5v0u2x\/","title":{"rendered":"PRTR5V0U2X"},"content":{"rendered":"

\"(\u300a\u4e16\u754c\u4eba\u6743\u5ba3\u8a00\u300b) PRTR5V0U2X<\/strong> by Nexperia is an ultra low capacitance double rail-to-rail ESD protection diode for two high-speed data lines in a SOT-143B (2.9 x 1.3 x 1.0 mm)<\/strong> package. It features 1 pF<\/strong> I\/O-to-GND capacitance, making it transparent to USB 2.0 Hi-Speed (480 Mbps) signals. ESD protection is rated at 8 kV<\/strong> contact per IEC 61000-4-2 Level 4, with 5.5V VRWM, 9V breakdown, and 17V clamping at 2.5 A.<\/p>\n

The device integrates two pairs of steering diodes plus an additional VCC-to-GND diode, ensuring protection even without supply voltage. Unidirectional configuration with less than 1 nA leakage. AEC-Q101 qualified variant available for automotive. Operating range -40 to +85C. RoHS compliant, ECCN EAR99. Active. Targeted at USB 2.0 ports, HDMI\/DVI interfaces, mobile devices, and automotive infotainment.<\/p>","protected":false},"excerpt":{"rendered":"

The PRTR5V0U2X by Nexperia is an ultra low capacitance double rail-to-rail ESD protection diode for two high-speed data lines in a SOT-143B (2.9 x 1.3 x 1.0 mm) package. It features 1 pF I\/O-to-GND capacitance, making it transparent to USB 2.0 Hi-Speed (480 Mbps) signals. ESD protection is rated at 8 kV contact per IEC […]<\/p>\n","protected":false},"author":2,"featured_media":2825,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[13,20],"tags":[],"chip_brand":[140],"class_list":["post-1796","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-integrated-circuits-ics","category-interface-ics","chip_brand-nexperia"],"acf":{"brief_explanation":"Dual bidirectional TVS, 5V, 0.5 pF, SOT-363, \u00b115 kV ESD","date_code":"","package_case":"SOT-143B (2.9 x 1.3 x 1.0 mm, 4 pins)","in_stock":216107,"datasheet":"https:\/\/www.nexperia.com\/product\/PRTR5V0U2X","price":"$0.15 (1000+ pcs)","product_introduction":"The PRTR5V0U2X is an ultra low capacitance double rail-to-rail ESD protection diode manufactured by Nexperia (formerly NXP Standard Products). It is designed to protect two high-speed data lines or high-frequency signal lines from electrostatic discharge (ESD) and other transients in a compact SOT-143B surface-mount package.\n\nThe device incorporates two pairs of ultra low capacitance rail-to-rail ESD protection diodes plus an additional ESD protection diode between VCC and GND. This additional diode ensures signal line protection even when no supply voltage is present, and prevents supply rail charging during ESD events. The key capacitance specification is C(I\/O-GND) = 1 pF typical, making it suitable for Hi-Speed USB 2.0 (480 Mbps) and other high-frequency interfaces without signal degradation.\n\nESD protection performance is rated at 8 kV contact discharge per IEC 61000-4-2 Level 4. The reverse standoff voltage (VRWM) is 5.5V, matching standard 5V logic and USB voltage levels. Breakdown voltage (VBR) is typically 9V at 1 mA. Clamping voltage is typically 17V at IPP = 2.5 A (8\/20 us). Reverse leakage current is less than 1 nA at VRWM. The I\/O-to-I\/O capacitance is 0.6 pF typical.\n\nThe unidirectional configuration is optimized for positive-rail referenced protection of D+\/D- data lines. The device is AEC-Q101 qualified (PRTR5V0U2X-Q variant) for automotive applications. Operating temperature range is -40 to +85C (extended range -55 to +125C for some variants). The SOT-143B package measures 2.9 x 1.3 x 1.0 mm with 1.9 mm lead pitch. RoHS compliant, ECCN EAR99. Product status: Active.","working_principle":"The PRTR5V0U2X operates as a rail-to-rail ESD clamp for two data lines:\n\n1. Rail-to-Rail Topology: Each of the two protected data lines (I\/O1, I\/O2) connects to a pair of steering diodes \u2014 one diode to VCC and one diode to GND. During normal operation, both diodes are reverse-biased and present only their junction capacitance (1 pF) to the signal path, preserving signal integrity at high data rates.\n\n2. Positive ESD Event: When a positive ESD strike occurs on a data line, the upper steering diode (I\/O to VCC) forward-biases and conducts the ESD current to the VCC rail. If VCC is present, the energy is absorbed by the supply bypass capacitors and the VCC-to-GND protection diode. If VCC is not present, the VCC-to-GND diode provides a discharge path to ground.\n\n3. Negative ESD Event: When a negative ESD strike occurs on a data line, the lower steering diode (I\/O to GND) forward-biases and conducts the ESD current directly to ground. The forward voltage of this diode clamps the negative excursion to approximately -1V to -2V, well within the safe range of most IC inputs.\n\n4. Additional VCC-to-GND Diode: The integrated diode between VCC and GND serves two purposes. First, it provides a direct clamping path for ESD energy reaching the VCC rail, preventing voltage spikes on the supply. Second, it ensures that even when VCC is floating or powered down, ESD energy from the data lines has a complete path to ground through the steering diodes and this VCC-GND diode.\n\n5. Low Capacitance Design: The ultra-low 1 pF I\/O-to-GND capacitance is achieved through specialized diode construction and layout. At USB 2.0 Hi-Speed (480 Mbps), this capacitance adds minimal signal distortion and maintains the signal eye diagram within USB specifications. The 0.6 pF I\/O-to-I\/O capacitance minimizes crosstalk between D+ and D- lines.\n\n6. Clamping Performance: The clamping voltage of 17V at 2.5 A (8\/20 us) is significantly lower than what simple steering diode networks would achieve, thanks to the integrated additional ESD diode that provides a low-impedance path during high-current events.","pin_description":"\n\n\n
Pin<\/th>Name<\/th>Type<\/th>Description<\/th><\/tr>\n<\/thead>\n
1<\/td>VCC<\/td>P<\/td>Positive supply rail connection; connect to protected supply bus with bypass capacitor<\/td><\/tr>\n
2<\/td>I\/O1<\/td>I\/O<\/td>Protected data line 1 (e.g., USB D+); ESD current steered to VCC or GND via diodes<\/td><\/tr>\n
3<\/td>I\/O2<\/td>I\/O<\/td>Protected data line 2 (e.g., USB D-); ESD current steered to VCC or GND via diodes<\/td><\/tr>\n
4<\/td>GND<\/td>G<\/td>Ground connection; connect to PCB ground plane with short trace<\/td><\/tr>\n<\/tbody>\n<\/table>","application_scenarios":"\n\n\n
Application<\/th>Description<\/th><\/tr>\n<\/thead>\n
USB 2.0 Ports<\/td>Protects D+\/D- lines on USB 2.0 Hi-Speed (480 Mbps) ports in PCs, hubs, and peripherals with 1 pF capacitance preserving signal integrity<\/td><\/tr>\n
HDMI\/DVI Interfaces<\/td>ESD protection for TMDS data lines in HDMI and DVI video interfaces where low capacitance is critical for high-frequency signal quality<\/td><\/tr>\n
Mobile Devices<\/td>Compact SOT-143B protection for data connectors in smartphones, tablets, and PDAs with minimal board space impact<\/td><\/tr>\n
LAN\/WAN Equipment<\/td>ESD protection for Ethernet PHY data lines and WAN interface connectors in routers, switches, and modems<\/td><\/tr>\n
Automotive USB<\/td>AEC-Q101 qualified variant (PRTR5V0U2X-Q) for USB ports in automotive infotainment and navigation systems<\/td><\/tr>\n<\/tbody>\n<\/table>","alternative_models":"\n\n\n
Model<\/th>Manufacturer<\/th>Compatibility<\/th>Key Difference<\/th><\/tr>\n<\/thead>\n
PRTR5V0U2X-Q<\/td>Nexperia<\/td>Series Variant<\/td>AEC-Q101 qualified automotive version; same electrical specs, qualified for automotive use<\/td><\/tr>\n
PRTR5V0U2F<\/td>Nexperia<\/td>Series Sibling<\/td>Bidirectional version in same SOT-143B package for AC-coupled signal lines<\/td><\/tr>\n
USBLC6-2SC6<\/td>STMicroelectronics<\/td>Competitive Alternative<\/td>Dual-line ESD protection for USB 2.0, SOT-23-6 package, 3 pF capacitance<\/td><\/tr>\n
TUSB2036VFR<\/td>TI<\/td>Competitive Alternative<\/td>USB 2.0 ESD protection, different package, comparable performance<\/td><\/tr>\n
NUP4202MR6<\/td>Onsemi<\/td>Competitive Alternative<\/td>Quad-line ESD protection in SOT-23-6, 0.8 pF, protects 4 lines<\/td><\/tr>\n<\/tbody>\n<\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/1796","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/comments?post=1796"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/1796\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media\/2825"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=1796"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=1796"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=1796"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=1796"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}