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Nexperia USA Inc. NUP1301U-QX
- Part No.:
- NUP1301U-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- TVS Diodes
- Package:
- SC-70, SOT-323
- Datasheet:
-
NUP1301U-QX.pdf
- Description:
- NUP1301U-Q/SOT323/SC-70
- Quantity:
- Payment:
- Shipping:
Inventory:8,895
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Product details
Overview
NUP1301U-Q from Nexperia is an ultra-low-capacitance ESD protection array in SOT323 (SC-70) package, designed for rail-to-rail protection of a single high-speed signal line. It delivers 0.6 pF typical diode capacitance, 30 kV IEC 61000-4-2 contact discharge rating, and clamps transients to ≤20 V at 11 A (8/20 µs), enabling robust protection for I²C-bus, antenna power supply, and Class-D audio interfaces.
For engineers reviewing the NUP1301U-Q datasheet, NUP1301U-Q pinout, NUP1301U-Q application, or NUP1301U-Q equivalent, this device is selected for high-frequency signal integrity preservation, automotive-grade transient immunity, and compact board-level ESD hardening where sub-1 pF loading is mandatory.
Technical Context
The NUP1301U-Q implements a bidirectional rail-to-rail ESD clamp topology with internal diodes connecting pin 3 (I/O) to pin 1 (GND) and pin 2 (VCC). Its operation relies on forward conduction during positive transients (to VCC) and reverse breakdown during negative transients (to GND), achieving fast response without external bias.
Clamping behavior is characterized by a 20 V maximum VCL at 11 A IPPM (8/20 µs), with a 100 V minimum VBR and 715 mV typical VF at 1 mA - ensuring low insertion loss and minimal interference with 3.3 V or 5 V logic signaling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 80 V - supports protection of signals up to 80 V DC bias without leakage or breakdown |
| Cd | 0.6 pF typ - preserves signal integrity on >100 MHz digital lines (e.g., I²C, USB 2.0) |
| VCL | ≤20 V at 11 A - limits transient voltage seen by downstream ICs to safe levels |
| ESD Rating | ±30 kV contact per IEC 61000-4-2 - exceeds automotive and industrial immunity requirements |
| IPPM | 11 A (8/20 µs) - handles surge events per IEC 61000-4-5 Level 3 (1 kV line-to-ground) |
| VBR | ≥100 V - ensures no conduction during normal operation under 3.3 V/5 V/12 V rails |
| Tj max | 150 °C - qualified for under-hood automotive environments per AEC-Q101 |
Pinout & Package
SOT323 (SC-70) plastic surface-mount package: 3-lead, 1.3 mm pitch, 2.0 × 1.25 × 0.95 mm body, optimized for high-density PCB layouts and reflow compatibility.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Low-impedance return path for negative transients; must connect directly to solid ground plane |
| 2 | VCC | Positive rail connection for clamping positive transients; requires local 100 nF decoupling |
| 3 | I/O | Protected signal line input/output; placed adjacent to connector or IC pin to minimize stub length |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail bidirectional clamping | Enables protection of single-ended signals referenced to both GND and VCC without external components |
| 0.6 pF typical capacitance | Maintains signal rise/fall times <1 ns on 50 Ω traces, critical for I²C, analog audio, and RF antenna feeds |
| AEC-Q101 qualified | Validated for automotive applications including infotainment, ADAS sensor interfaces, and body control modules |
| 220 W peak pulse power | Withstands multiple 8/20 µs surges without degradation, supporting long-term field reliability |
| 100 nA max reverse current at 80 V | Prevents DC loading on sensitive analog or reference lines, preserving accuracy and power efficiency |
Applications
| I²C-Bus Protection | Antenna Power Supply |
|---|---|
Use Scenario: Protecting bidirectional SDA/SCL lines between microcontroller and sensors in automotive cabin modules. IC Role / Device Role / Timing Role: ESD clamp placed within 3 mm of connector, shunting ±8 kV HBM transients before they reach MCU GPIO pins. Use Value: Prevents I²C bus lockup and firmware resets caused by ESD-induced latch-up, maintaining communication uptime. | Use Scenario: Safeguarding DC-biased RF antenna feed lines in GPS/GNSS receivers. IC Role / Device Role / Timing Role: Low-capacitance shunt between antenna trace and VBAT/GND, preserving RF impedance match up to 1.6 GHz. Use Value: Avoids signal attenuation and phase distortion while meeting ISO 10605 30 kV system-level ESD test requirements. |
| Class-D Amplifier Inputs | Analog Audio Line Drivers |
Use Scenario: Input protection for PWM-driven Class-D amplifier ICs in automotive audio head units. IC Role / Device Role / Timing Role: Placed at differential input stage to suppress ESD-induced pop/click artifacts during hot-plug events. Use Value: Eliminates audible transients without degrading 20 Hz–20 kHz frequency response due to sub-1 pF loading. | Use Scenario: Protecting line-out outputs driving external speakers or headphones in infotainment systems. IC Role / Device Role / Timing Role: Bidirectional clamp on unbalanced audio path, referenced to local AVSS and AVDD rails. Use Value: Prevents damage to op-amp output stages and maintains THD+N <0.01% across full audio bandwidth. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPD1E10B06DPYR | 0.5 pF capacitance, 12 A IPPM, but only 12 V VRRM | Limited to 3.3 V systems; unsuitable for 5 V or 12 V antenna supplies | Select when lowest possible capacitance is required and rail voltage ≤3.3 V |
| ESD5Z3.3T5G | Single-line unidirectional device, 3.3 V VBR, no VCC pin | Cannot provide rail-to-rail clamping; requires separate GND/VCC paths for bidirectional protection | Choose only for cost-sensitive, non-automotive designs with fixed-polarity signals |
Compared with TPD1E10B06DPYR and ESD5Z3.3T5G, the NUP1301U-Q uniquely combines 80 V VRRM, rail-to-rail architecture, and AEC-Q101 qualification - making it the only option for automotive 5 V/12 V high-speed data lines requiring simultaneous GND- and VCC-referenced clamping.
Availability
NUP1301U-Q is available at Aetrix Electronics and suitable for automotive infotainment systems, industrial sensor interfaces, and consumer audio equipment requiring stable component supply and guaranteed long-term manufacturability.
Supply support for NUP1301U-Q includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Nexperia is a global semiconductor expert focused on essential efficiency technologies, delivering high-performance, reliable discrete and logic devices for automotive, industrial, and consumer markets.
The NUP1301U-Q belongs to Nexperia's Automotive ESD Protection portfolio, engineered specifically for high-reliability, high-speed interface protection in harsh electromagnetic environments.
FAQ
What is the maximum recommended trace length between the NUP1301U-Q and the protected I/O pin?
The datasheet specifies placement within 3 mm of the connector or IC pin. Longer traces increase inductance, degrading clamping effectiveness above 100 MHz and raising VCL during fast transients. For I²C or audio lines, keep total path (device-to-pin + device-to-GND/VCC) under 5 mm with direct vias to inner ground planes.
Does the NUP1301U-Q require external decoupling capacitors on the VCC pin?
Yes - a 100 nF ceramic capacitor must be placed between pin 2 (VCC) and pin 1 (GND), located within 2 mm of the device. This provides low-impedance surge current return during positive transients and prevents VCC rail disturbance that could affect nearby ICs.
Can the NUP1301U-Q protect AC-coupled signals such as USB D+/D−?
No - its rail-to-rail architecture assumes DC bias referencing both GND and VCC. For AC-coupled differential pairs like USB, use dedicated differential ESD arrays (e.g., PUSB3FR4) with matched capacitance and common-mode rejection.
How does temperature affect the clamping voltage performance?
VCL increases by ~0.1 V/°C above 25 °C due to diode thermal drift. At 125 °C junction temperature, VCL rises to ~23 V at 11 A - still within safe margins for 3.3 V/5 V logic, but design margin shrinks for 12 V systems operating near Tj max.
NUP1301U-QX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Package/Case:
- SC-70, SOT-323
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 2
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 80V (Max)
- Voltage - Breakdown (Min):
- 100V
- Voltage - Clamping (Max) @ Ipp:
- 20V
- Current - Peak Pulse (10/1000µs):
- 11A (8/20µs)
- Power - Peak Pulse:
- 220W
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- 0.6pF @ 1MHz
- Operating Temperature:
- -55°C ~ 150°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-323
NUP1301U-QX FAQ
1.How can I place an order for NUP1301U-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for NUP1301U-QX on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for NUP1301U-QX reliable?
The price and inventory of NUP1301U-QX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NUP1301U-QX is usually 5 days.
3.What payment methods are accepted for NUP1301U-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NUP1301U-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NUP1301U-QX?
NUP1301U-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NUP1301U-QX order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for NUP1301U-QX?
For technical support, including NUP1301U-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NUP1301U-QX requirements.
6.How does Aetrix verify that NUP1301U-QX is sourced from the original manufacturer or authorized distributors?
All NUP1301U-QX products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that NUP1301U-QX meets industry standards.
7.What is the process for return or replacement of NUP1301U-QX?
All NUP1301U-QX units undergo pre-shipment inspection (PSI). If there is an issue with NUP1301U-QX, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The NUP1301U-QX part is unused and in its original packaging.
Return procedure for NUP1301U-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
NUP1301U-QX Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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ESD5Z3.3T1G
onsemi
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D5V0H1B2LP-7B
Diodes Incorporated
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D5V0P1B2LP-7B
Diodes Incorporated
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DESD5V0U1BA-7
Diodes Incorporated
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ESD5Z5.0T1G
onsemi
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DESD5V0U1BB-7
Diodes Incorporated
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D12V0L1B2LP-7B
Diodes Incorporated
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PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
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D5V0L1B2WS-7
Diodes Incorporated
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