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Nexperia USA Inc. PESD24VS4UD-QX
- Part No.:
- PESD24VS4UD-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- TVS Diodes
- Package:
- SC-74, SOT-457
- Datasheet:
-
PESD24VS4UD-QX.pdf
- Description:
- PESD24VS4UD-Q/SOT457/SC-74
- Quantity:
- Payment:
- Shipping:
Inventory:9,219
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Product details
Overview
PESD24VS4UD-Q from Nexperia is a quadruple unidirectional ESD protection diode array in SOT457 (SC-74) package, designed to protect four independent signal lines against IEC 61000-4-2 level 4 ESD (±23 kV contact), with 24 V reverse standoff voltage, 52 V clamping voltage at 4 A, and 45–70 pF capacitance per line. It is deployed in high-density portable electronics interfaces requiring low-leakage (0.05 nA) and fast transient suppression.
For engineers reviewing the PESD24VS4UD-Q datasheet, PESD24VS4UD-Q pinout, PESD24VS4UD-Q application, or PESD24VS4UD-Q equivalent, key selection criteria include clamping performance under 4 A surge, bidirectional layout compatibility via dual common anodes, ultra-low capacitance for high-speed data lines (e.g., USB 2.0, SIM card interfaces), and AEC-Q101 qualification for automotive infotainment I/O protection.
Technical Context
This device implements four independent unidirectional TVS diodes sharing two common anode terminals (pins 2 and 5), enabling flexible routing for either four separate unidirectional lines or three bidirectional lines using shared anode topology. Each cathode-anode path exhibits 25.5–29 V breakdown and sub-25 Ω differential resistance.
It complies with IEC 61000-4-2 (±23 kV contact/±15 kV air) and IEC 61000-4-5 (4 A, 8/20 µs surge), delivering 200 W peak pulse power per channel. The 0.05 nA reverse leakage at 24 V supports battery-sensitive applications like SIM card slots and mobile audio codecs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Standoff Voltage | 24 V - Maximum continuous DC or RMS signal voltage before conduction begins; defines safe operating margin for 3.3 V/5 V/12 V data lines. |
| Clamping Voltage | 52 V at 4 A - Peak voltage across diode during IEC 61000-4-5 surge; ensures downstream ICs rated ≤55 V survive transient events. |
| Diode Capacitance | 45–70 pF at 1 MHz - Low enough for USB 2.0 (480 Mbps), HDMI DDC, and audio codec I²C lines without signal integrity degradation. |
| ESD Rating | ±23 kV contact per IEC 61000-4-2 - Meets highest industrial and automotive ESD immunity requirement for exposed connectors. |
| Peak Pulse Power | 200 W per channel - Sustains 4 A, 8/20 µs surges without thermal runaway; validated per IEC 61000-4-5 waveform. |
| Leakage Current | 0.05 nA at 24 V - Enables use in always-on battery-backed circuits (e.g., SIM detection, real-time clock lines) without measurable drain. |
Pinout & Package
SOT457 (SC-74 / TSOP6) 6-pin surface-mount plastic package, 3.0 mm × 1.7 mm × 1.1 mm body, 0.65 mm lead pitch, gull-wing leads. RoHS-compliant, halogen-free, qualified per AEC-Q101.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode 1 | Protected signal line 1 input; connects to I/O pad of MCU/codec; conducts to common anode during positive transients. |
| 2 | Common Anode A | Anode node shared by cathodes 1 and 2; ties to system ground or local low-impedance return path for ESD current dissipation. |
| 3 | Cathode 2 | Protected signal line 2 input; electrically isolated from cathode 1 but shares anode 2; enables compact dual-line protection. |
| 4 | Cathode 3 | Protected signal line 3 input; pairs with common anode 5; allows independent routing for third high-speed interface (e.g., SDIO). |
| 5 | Common Anode B | Second anode node shared by cathodes 3 and 4; permits split-ground or multi-zone PCB layout without shared return-path coupling. |
| 6 | Cathode 4 | Protected signal line 4 input; completes quad-channel protection; supports SIM card VCC/I/O/CLK/RST line shielding in mobile designs. |
Key Features
| Feature | Design Value |
|---|---|
| Quad-channel unidirectional topology | Two independent common anodes enable flexible PCB layout-four unidirectional lines or three bidirectional lines using pin 2/5 as dual reference points. |
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD stress-suitable for infotainment, telematics, and ADAS sensor interfaces. |
| Ultra-low 0.05 nA leakage | Minimizes standby current in always-on circuits such as SIM card presence detection and battery-backed real-time clocks without compromising protection. |
| 45–70 pF low capacitance | Preserves signal rise/fall times on 480 Mbps USB 2.0, 100 kHz I²C, and 26 MHz SDIO lines-no equalization or pre-emphasis required. |
| 23 kV IEC 61000-4-2 contact rating | Exceeds industrial and automotive ESD immunity requirements, eliminating need for secondary protection layers in cost-sensitive consumer and automotive modules. |
Applications
| USB 2.0 Interface Protection | SIM Card Slot Protection |
|---|---|
Use Scenario: Protecting D+ and D− lines of USB 2.0 ports in smartphones, tablets, and automotive head units from repeated ESD events during cable insertion. IC Role / Device Role / Timing Role: Unidirectional transient voltage suppressor placed directly at USB connector, clamping surges before reaching USB PHY or controller. Use Value: 45–70 pF capacitance avoids signal distortion at 480 Mbps; 52 V clamping prevents damage to 3.3 V tolerant PHY inputs. |
Use Scenario: Shielding SIM card VCC, I/O, CLK, and RST pins in mobile handsets and IoT modules from ESD during hot-swap operations. IC Role / Device Role / Timing Role: Quad-channel ESD clamp with dedicated cathodes per SIM signal, referenced to local ground via dual common anodes. Use Value: 0.05 nA leakage preserves battery life in always-on SIM detection circuits; ±23 kV rating exceeds IEC 61000-4-2 handheld device requirements. |
| Automotive Infotainment I/O | Portable Audio Codec Interface |
Use Scenario: Protecting auxiliary analog audio inputs (e.g., AUX-IN, microphone bias lines) and digital control lines (I²C, UART) in car radios and display head units. IC Role / Device Role / Timing Role: AEC-Q101-qualified ESD array placed at connector entry point, shunting transients to chassis ground before reaching audio ADC or microcontroller GPIO. Use Value: Dual common anodes allow separation of analog and digital ground returns, reducing cross-talk; 24 V VRWM matches 12 V automotive supply rails. |
Use Scenario: Safeguarding high-fidelity audio codec I²S data, word clock, and left/right clock lines in Bluetooth speakers and wireless headphones. IC Role / Device Role / Timing Role: Low-capacitance ESD clamp on each I²S signal pair, minimizing jitter and intersymbol interference caused by parasitic loading. Use Value: 45–70 pF capacitance maintains <1 ns edge fidelity on 3.072 MHz I²S clocks; 200 W peak power handles board-level surge coupling from nearby switching regulators. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ESDA6V1SC6 | Unidirectional, 6 V VRWM, 12 pF typical capacitance, 30 V clamping at 1 A | Better suited for low-voltage 1.8 V/3.3 V logic; insufficient for 24 V signal lines or automotive 12 V bias rails | Select only when protecting sub-5 V high-speed serial links where ultra-low capacitance (<15 pF) is critical and standoff voltage ≤6 V is acceptable. |
| TPD4E001DPYR | Unidirectional, 5.5 V VRWM, 3.5 pF typical capacitance, 14 V clamping at 1 A, 12 kV ESD rating | Optimized for USB 3.0/PCIe Gen1; lacks AEC-Q101 qualification and fails to meet 23 kV IEC 61000-4-2 level 4 | Prefer for ultra-high-speed interfaces (≥5 Gbps) where sub-5 pF loading is mandatory, but avoid in automotive or industrial environments requiring full level-4 compliance. |
Compared with ESDA6V1SC6 and TPD4E001DPYR, PESD24VS4UD-Q uniquely balances 24 V standoff, 23 kV ESD robustness, AEC-Q101 qualification, and 45–70 pF capacitance-making it the only option among the three qualified for 12 V automotive I/O, SIM card slots, and USB 2.0 in harsh environments.
Availability
PESD24VS4UD-Q is available at Aetrix Electronics and suitable for USB 2.0 interface protection, SIM card slot hardening, and automotive infotainment I/O requiring stable component supply, long-term lifecycle support, and AEC-Q101-compliant sourcing.
Supply support for PESD24VS4UD-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 high-volume, high-reliability discrete and logic devices, with leadership in ESD protection, MOSFETs, and bipolar transistors.
PESD24VS4UD-Q belongs to Nexperia's ESD protection diode array product line, engineered specifically for robust, low-capacitance I/O safeguarding in portable, automotive, and industrial electronics where signal integrity and surge immunity must coexist.
FAQ
What is the maximum recommended PCB trace length between PESD24VS4UD-Q and the protected connector?
The datasheet specifies placement "as close to the input terminal or connector as possible" to minimize inductance in the ESD current path. For optimal IEC 61000-4-2 performance, keep trace lengths under 3 mm from each cathode pin to its protected line and under 2 mm from common anodes (pins 2 and 5) to their respective ground vias. Longer traces degrade clamping response and increase overshoot.
Can PESD24VS4UD-Q protect bidirectional data lines like I²C without external components?
Yes-its dual common anode architecture (pins 2 and 5) allows configuration for three bidirectional lines: connect pins 1–2–3 as one channel (cathodes 1/2 to shared anode 2), and pins 4–5–6 as two additional channels (cathode 3 to anode 5, cathode 4 to anode 5). This provides full ±23 kV ESD protection on SDA/SCL/VDD lines without pull-up resistor relocation or added diodes.
Is the 200 W peak pulse power rating per channel or total for all four channels?
The 200 W rating is per channel, verified per IEC 61000-4-5 with non-repetitive 8/20 µs pulses applied individually to pins 1, 3, 4, or 6 relative to pins 2 or 5. Simultaneous multi-channel stressing is not characterized; design practice limits surge application to one line at a time to maintain thermal safety margins.
Does the 0.05 nA leakage current apply across the full operating temperature range?
No-the 0.05 nA value is specified at Tamb = 25 °C and VRWM = 24 V. Leakage increases with temperature: typical values are 0.2 nA at 85 °C and 15 nA maximum at 125 °C. For battery-critical applications, derate based on worst-case junction temperature, not ambient.
PESD24VS4UD-QX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Package/Case:
- SC-74, SOT-457
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 4
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 24V (Max)
- Voltage - Breakdown (Min):
- 25.5V
- Voltage - Clamping (Max) @ Ipp:
- 52V
- Current - Peak Pulse (10/1000µs):
- 4A (8/20µs)
- Power - Peak Pulse:
- 200W
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- 45pF @ 1MHz
- Operating Temperature:
- -65°C ~ 150°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-TSOP
PESD24VS4UD-QX FAQ
1.How can I place an order for PESD24VS4UD-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for PESD24VS4UD-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 PESD24VS4UD-QX reliable?
The price and inventory of PESD24VS4UD-QX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PESD24VS4UD-QX is usually 5 days.
3.What payment methods are accepted for PESD24VS4UD-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PESD24VS4UD-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PESD24VS4UD-QX?
PESD24VS4UD-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PESD24VS4UD-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 PESD24VS4UD-QX?
For technical support, including PESD24VS4UD-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PESD24VS4UD-QX requirements.
6.How does Aetrix verify that PESD24VS4UD-QX is sourced from the original manufacturer or authorized distributors?
All PESD24VS4UD-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 PESD24VS4UD-QX meets industry standards.
7.What is the process for return or replacement of PESD24VS4UD-QX?
All PESD24VS4UD-QX units undergo pre-shipment inspection (PSI). If there is an issue with PESD24VS4UD-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 PESD24VS4UD-QX part is unused and in its original packaging.
Return procedure for PESD24VS4UD-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PESD24VS4UD-QX Tags
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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