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Nexperia USA Inc. PESD24VS1UA-QX
- Part No.:
- PESD24VS1UA-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- TVS Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
PESD24VS1UA-QX.pdf
- Description:
- PESD24VS1UA-Q/SOD323/SOD2
- Quantity:
- Payment:
- Shipping:
Inventory:5,844
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Product details
Overview
PESD24VS1UA-Q from Nexperia is a unidirectional ESD protection diode in SOD323 (SC-76) package, designed to protect single signal lines against IEC 61000-4-2 ESD (23 kV contact), IEC 61000-4-5 surge (3 A), with 24 V reverse standoff voltage, 23–50 pF capacitance, and 1 nA leakage at 24 V - deployed in CAN bus, data lines, and automotive infotainment interfaces.
For engineers reviewing the PESD24VS1UA-Q datasheet, PESD24VS1UA-Q pinout, PESD24VS1UA-Q application, or PESD24VS1UA-Q equivalent, this page delivers verified electrical parameters, automotive-qualified transient protection behavior, SOD323 layout guidance, and direct replacement options for high-reliability signal line hardening.
Technical Context
This device operates as a clamping-type unidirectional TVS diode, triggering at 26.5–27.5 V breakdown (5 mA) and limiting transients to ≤70 V at 3 A (8/20 µs). Its low 23–50 pF capacitance ensures minimal signal distortion on high-speed lines such as CAN FD and USB 2.0.
Qualified per AEC-Q101, it sustains junction temperatures up to 150 °C and supports operation across –65 °C to +150 °C ambient. The cathode-marked SOD323 footprint enables compact placement adjacent to connectors - critical for effective ESD path impedance control.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Standoff Voltage | 24 V - maximum continuous working voltage before conduction begins; defines safe operating range for protected signal lines. |
| Breakdown Voltage | 26.5–27.5 V at 5 mA - precise turn-on threshold ensuring early clamping without false triggering. |
| Clamping Voltage | ≤70 V at 3 A (8/20 µs) - limits transient overvoltage seen by downstream ICs during surge events. |
| Diode Capacitance | 23–50 pF at 1 MHz, 0 V - low enough for CAN, LIN, and audio signal integrity without bandwidth degradation. |
| ESD Rating | 23 kV contact discharge (IEC 61000-4-2 Level 4) - exceeds automotive and industrial immunity requirements. |
| Leakage Current | 1 nA typical at 24 V - negligible loading on high-impedance sensor or communication lines. |
| Peak Pulse Power | 160 W (8/20 µs) - handles short-duration surges without thermal failure under defined test conditions. |
Pinout & Package
SOD323 (SC-76) plastic surface-mount package: 2-pin, 1.7 mm × 1.25 mm × 0.95 mm body, 1.3 mm lead pitch; marking bar denotes cathode (Pin 1).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (K) | Cathode | Connected to ground or low-impedance return path; clamps positive transients to GND when forward-biased relative to anode. |
| 2 (A) | Anode | Connected to protected signal line; conducts current during positive ESD events toward cathode/GND. |
Key Features
| Feature | Design Value |
|---|---|
| Unidirectional Clamping | Protects only positive-going transients on DC-biased lines - avoids interference with negative signal swings in CAN or RS-485. |
| AEC-Q101 Qualification | Validated for automotive use including engine control modules, body electronics, and ADAS sensor interfaces. |
| Ultra-Low Capacitance | 23 pF typical enables deployment on 1 Mbps CAN bus without signal rise-time degradation or reflection. |
| Low Leakage | 1 nA at VRWM preserves battery life in always-on automotive modules and prevents false wake-up in low-power microcontrollers. |
| High Surge Robustness | Withstands 3 A (8/20 µs) surge per IEC 61000-4-5 - sufficient for 12 V automotive power rail coupling scenarios. |
Applications
| Automotive CAN Bus Protection | USB 2.0 Data Line Protection |
|---|---|
Use Scenario: Protecting CAN_H/CAN_L differential pair inputs in telematics control units exposed to ESD during connector mating. IC Role / Device Role / Timing Role: Unidirectional clamping diode placed at connector entry point to shunt ESD energy to chassis ground before reaching CAN transceiver. Use Value: Maintains CAN signal integrity (≤50 pF) while meeting ISO 10605 and AEC-Q101 requirements for 15 kV air/25 kV contact discharge. |
Use Scenario: Shielding D+ and D− lines of USB 2.0 ports in infotainment head units from user-hand ESD events. IC Role / Device Role / Timing Role: Single-line ESD suppressor per data line, minimizing capacitance-induced jitter and eye diagram closure. Use Value: Enables full-speed (480 Mbps) USB compliance with <25 pF added capacitance and sub-70 V clamping at 3 A surge. |
| Industrial Sensor Interface Protection | Audio Line Input Protection |
Use Scenario: Safeguarding analog output lines (e.g., 4–20 mA or 0–10 V) from field wiring ESD in PLC I/O modules. IC Role / Device Role / Timing Role: Standoff-mode protector mounted directly at terminal block entry, blocking leakage while clamping transients. Use Value: 1 nA leakage ensures measurement accuracy; 24 V VRWM matches common industrial supply rails without derating. |
Use Scenario: Preventing pop/click damage and amplifier latch-up on line-in or microphone inputs of automotive audio amplifiers. IC Role / Device Role / Timing Role: Low-capacitance unidirectional clamp on AC-coupled audio paths referenced to bias voltage. Use Value: 23 pF capacitance avoids bass roll-off; 23 kV ESD rating eliminates need for secondary protection stages. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ESD5Z3.3T5G (ON Semiconductor) | 3.3 V VRWM, 12 pF typical, 12 kV ESD rating - lower voltage, lower capacitance, lower ESD robustness. | Targeted at low-voltage logic (1.8–3.3 V) rather than 12–24 V automotive buses. | Select when protecting 3.3 V GPIO or I²C lines where tighter voltage margin and ultra-low capacitance are prioritized. |
| TPD2E001DRYR (Texas Instruments) | Dual-channel, 5.5 V VRWM, 12 pF per channel, ±8 kV IEC 61000-4-2 - lower voltage, dual-line, higher ESD tolerance than PESD24VS1UA-Q's 23 kV but not AEC-Q101 qualified. | Designed for portable electronics (smartphones, tablets); lacks automotive qualification and higher-voltage capability. | Choose for space-constrained dual-line protection in non-automotive consumer devices requiring compact dual-diode solutions. |
Compared with ES5Z3.3T5G and TPD2E001DRYR, PESD24VS1UA-Q uniquely combines AEC-Q101 qualification, 24 V standoff, and 23 kV ESD rating - making it the only option among the three validated for 12 V/24 V automotive signal line protection with long-term reliability assurance.
Availability
PESD24VS1UA-Q is available at Aetrix Electronics and suitable for automotive CAN bus protection, industrial sensor interface hardening, and USB 2.0 data line safeguarding requiring stable component supply across multi-year production cycles.
Supply support for PESD24VS1UA-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.
This device belongs to Nexperia's Automotive-Grade ESD Protection Diode product line, engineered specifically for robust transient suppression in harsh automotive environments while maintaining signal fidelity on high-speed and analog interfaces.
FAQ
Is PESD24VS1UA-Q suitable for bidirectional signal lines like RS-485?
No - PESD24VS1UA-Q is unidirectional and protects only positive transients relative to ground. For bidirectional lines such as RS-485 or USB D+/D− differential pairs, a bidirectional ESD diode (e.g., PESD5V0S1BA-Q) is required to clamp both polarities. Using this part on bidirectional lines leaves negative transients unprotected.
What is the recommended PCB layout for optimal ESD performance?
Place PESD24VS1UA-Q within 2 mm of the protected connector, route the protected trace directly to Pin 2 (anode), connect Pin 1 (cathode) to a low-inductance ground plane via shortest possible path, and avoid vias or stubs in the ESD current path. Use solid ground beneath the device and minimize loop area between anode and cathode traces.
Does PESD24VS1UA-Q require series resistance for current limiting?
No - unlike Zener-based clamps, this diode relies on its dynamic resistance (~1.53 Ω) and system source impedance to limit peak current during ESD events. Adding external series resistance degrades clamping response and may increase voltage overshoot; it is only used if system-level analysis confirms insufficient natural impedance.
How does temperature affect clamping performance?
Clamping voltage increases slightly with junction temperature due to semiconductor physics - VCL rises ~0.1 %/°C above 25 °C. At 125 °C junction, clamping remains ≤72 V at 3 A. Derating curves in Figure 4 confirm 80 % of rated peak pulse power is retained at 125 °C junction temperature.
PESD24VS1UA-QX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Package/Case:
- SC-76, SOD-323
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 24V (Max)
- Voltage - Breakdown (Min):
- 26.5V
- Voltage - Clamping (Max) @ Ipp:
- 70V
- Current - Peak Pulse (10/1000µs):
- 3A (8/20µs)
- Power - Peak Pulse:
- 160W
- Power Line Protection:
- No
- Applications:
- CAN, Telecom
- Capacitance @ Frequency:
- 23pF @ 1MHz
- Operating Temperature:
- -65°C ~ 150°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-323
PESD24VS1UA-QX FAQ
1.How can I place an order for PESD24VS1UA-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for PESD24VS1UA-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 PESD24VS1UA-QX reliable?
The price and inventory of PESD24VS1UA-QX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PESD24VS1UA-QX is usually 5 days.
3.What payment methods are accepted for PESD24VS1UA-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PESD24VS1UA-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PESD24VS1UA-QX?
PESD24VS1UA-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PESD24VS1UA-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 PESD24VS1UA-QX?
For technical support, including PESD24VS1UA-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PESD24VS1UA-QX requirements.
6.How does Aetrix verify that PESD24VS1UA-QX is sourced from the original manufacturer or authorized distributors?
All PESD24VS1UA-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 PESD24VS1UA-QX meets industry standards.
7.What is the process for return or replacement of PESD24VS1UA-QX?
All PESD24VS1UA-QX units undergo pre-shipment inspection (PSI). If there is an issue with PESD24VS1UA-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 PESD24VS1UA-QX part is unused and in its original packaging.
Return procedure for PESD24VS1UA-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PESD24VS1UA-QX Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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ESD5Z3.3T1G
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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.
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DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
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Diodes Incorporated
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