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Nexperia USA Inc. PESD3V3S2UAT,215
- Part No.:
- PESD3V3S2UAT,215
- Manufacturer:
- Nexperia USA Inc.
- Category:
- TVS Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
PESD3V3S2UAT,215.pdf
- Description:
- TVS DIODE 3.3VWM 20VC TO236AB
- Quantity:
- Payment:
- Shipping:
Inventory:18,771
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Product details
Overview
PESD3V3S2UAT from Nexperia is a unidirectional double ESD protection diode in common-cathode configuration, housed in an SOT23 package. It protects two data lines against ESD (up to 30 kV contact discharge per IEC 61000-4-2 Level 4) and surge transients (18 A peak pulse current), with 3.3 V reverse standoff voltage, 207–300 pF capacitance, and ultra-low 700 nA leakage at VRWM - deployed in USB, HDMI, and audio interface lines.
For engineers reviewing the PESD3V3S2UAT datasheet, PESD3V3S2UAT pinout, PESD3V3S2UAT application, or PESD3V3S2UAT equivalent, key selection criteria include clamping voltage (20 V at 18 A), differential resistance (≤400 Ω), common-cathode topology for ground-referenced signal protection, and SOT23 footprint compatibility with high-density PCB layouts.
Technical Context
This device implements dual-channel unidirectional transient suppression using a shared cathode architecture, enabling independent protection of two positive-going signal lines referenced to system ground. Its low 3.3 V VRWM ensures compatibility with 3.3 V logic interfaces without forward conduction during normal operation.
The 8/20 µs surge rating (330 W peak pulse power, 18 A IPPM) and 15 kV air/30 kV contact ESD immunity are validated per IEC 61000-4-2 and IEC 61000-4-5. Diode capacitance remains tightly controlled (207–300 pF at 1 MHz, 0 V bias) to minimize signal integrity impact on high-speed data lines.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 3.3 V - Ensures no conduction during normal 3.3 V signal operation; defines maximum working voltage before breakdown. |
| VBR | 5.2–6.0 V at 5 mA - Breakdown onset range; guarantees reliable turn-on before downstream IC damage thresholds. |
| VCL | 20 V at IPPM = 18 A - Clamped voltage under worst-case surge; limits stress on protected IC I/O pins. |
| Cd | 207–300 pF at 1 MHz, 0 V - Low, stable capacitance preserves signal rise time and impedance matching on USB/HDMI lines. |
| IRM | 0.7–2.0 µA at VRWM = 3.3 V - Ultra-low leakage prevents DC loading or bias shift in sensitive analog/digital receivers. |
| PPPM | 330 W at tp = 8/20 µs - Peak transient energy handling capacity; supports industrial-level surge immunity. |
| ESD Rating | 30 kV contact discharge (IEC 61000-4-2 Level 4) - Exceeds standard ESD immunity requirements for end-user ports. |
Pinout & Package
SOT23 plastic surface-mount package (2.9 mm × 1.3 mm × 1.0 mm body, 1.9 mm lead pitch); thermally optimized for reflow soldering with JEDEC-compliant footprint (Fig. 10).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (A1) | Anode of diode 1 | Connects to first protected line (e.g., USB D+); conducts transient current to common cathode when voltage exceeds VBR. |
| 2 (A2) | Anode of diode 2 | Connects to second protected line (e.g., USB D−); operates independently but shares cathode return path. |
| 3 (CC) | Common cathode | Single ground connection point for both diodes; minimizes PCB trace inductance and improves clamping consistency. |
Key Features
| Feature | Design Value |
|---|---|
| Common-cathode dual-diode topology | Enables compact, symmetrical layout for differential or independent single-ended line protection with shared ground return. |
| Ultra-low 700 nA reverse leakage | Maintains signal integrity and power efficiency in battery-powered or high-impedance sensor interfaces. |
| 30 kV ESD contact discharge immunity | Meets and exceeds IEC 61000-4-2 Level 4, eliminating need for secondary ESD stages in consumer port designs. |
| 207–300 pF capacitance (1 MHz, 0 V) | Preserves >100 Mbps data rates on USB 2.0 and audio serial links without measurable jitter or attenuation. |
| 330 W peak pulse power (8/20 µs) | Withstands repetitive surges in industrial Ethernet or PoE-powered peripherals without parameter drift or failure. |
Applications
| USB 2.0 Interface Protection | HDMI Data Lane Protection |
|---|---|
|
Use Scenario: Protecting D+ and D− lines of a USB 2.0 host port against ESD events during cable insertion and hot-plug operations. IC Role / Device Role / Timing Role: Unidirectional clamping diode pair providing fast (<1 ns response) voltage limiting to <20 V during 30 kV contact discharge. Use Value: Prevents latch-up or gate oxide damage in USB transceivers while maintaining <15 pF added capacitance per line for full-speed signaling compliance. |
Use Scenario: Shielding TMDS clock and data channels in HDMI source devices (e.g., set-top boxes) from ESD coupling through connectors. IC Role / Device Role / Timing Role: Dual-line transient suppressor placed adjacent to HDMI receptacle, clamping surges before reaching serializer IC inputs. Use Value: Enables robust 1080p/60 Hz transmission by holding inter-line capacitance mismatch below 5 pF and preserving differential impedance. |
| Audio Line Input Protection | Industrial RS-485 Transceiver Port |
|
Use Scenario: Safeguarding analog audio input jacks (e.g., 3.5 mm TRS) on portable speakers or DACs from user-hand ESD. IC Role / Device Role / Timing Role: Ground-referenced unidirectional clamp for tip and ring signals, leveraging common cathode to avoid ground loop injection. Use Value: Adds <0.7 µA total leakage across both channels, preventing DC offset in op-amp front-ends and preserving SNR >110 dB. |
Use Scenario: Protecting A/B differential pairs of RS-485 transceivers in factory automation nodes exposed to motor drive noise and lightning-induced surges. IC Role / Device Role / Timing Role: Dual-channel surge suppressor rated for 18 A (8/20 µs), coordinated with TVS arrays on power rails for full-system immunity. Use Value: Delivers 330 W transient dissipation without derating at 85 °C ambient, supporting continuous operation in DIN-rail enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-line unidirectional ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor ESD9B3.3ST5G | Same SOT23-3L, 3.3 V VRWM, but lower PPPM (200 W) and higher Cd (350 pF typ). | Limited to ≤480 Mbps data rates; less suitable for HDMI or USB 2.0 due to capacitance-induced jitter. | Select when cost sensitivity outweighs high-speed performance and surge margin is secondary. |
| Vishay ESDEFL3-3.3 | Higher VBR (6.5 V min), same 30 kV ESD rating, but asymmetric pinout (anode-cathode-anode) requiring layout revision. | Requires separate ground traces per diode; increases PCB inductance and reduces clamping symmetry. | Choose only if existing board uses asymmetric routing or requires tighter VBR tolerance (±5 % vs ±10 %). |
Compared with ESD9B3.3ST5G and ESDEFL3-3.3, the PESD3V3S2UAT delivers superior surge robustness (330 W vs 200 W), lower capacitance variation (207–300 pF vs fixed 350 pF), and optimized common-cathode layout for minimal ground bounce - making it preferred for high-reliability, high-speed interface protection.
Availability
PESD3V3S2UAT is available at Aetrix Electronics and suitable for USB interface protection, HDMI data lane hardening, and industrial RS-485 port safeguarding requiring stable component supply and long-term lifecycle support.
Supply support for PESD3V3S2UAT 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 PESDxS2UAT series of ultra-low-capacitance, common-cathode ESD suppressors engineered specifically for high-speed digital interface protection in consumer, computing, and industrial equipment.
FAQ
What is the maximum operating temperature for PESD3V3S2UAT?
The PESD3V3S2UAT has a maximum junction temperature (Tj) of 150 °C and an ambient operating range of −65 °C to +150 °C. Thermal derating begins above 25 °C ambient, with peak pulse power dropping to ~70 % at 85 °C junction temperature per Fig. 4 in the datasheet.
Can PESD3V3S2UAT protect bidirectional signal lines?
No - it is a unidirectional device intended for ground-referenced positive-going signals only. For bidirectional protection (e.g., I²C), a dual-channel bidirectional array like PESD5V0S2UAT or discrete back-to-back diodes are required.
How does the common-cathode configuration affect PCB layout?
The shared cathode (Pin 3) must connect directly to a low-inductance ground plane with minimal trace length (<2 mm recommended). This avoids ground bounce between protected lines and ensures simultaneous clamping action during multi-line ESD events.
Is PESD3V3S2UAT automotive-qualified?
No - per Revision History (Table 7), this part was changed to non-automotive qualification in v.3 (2025). It lacks AEC-Q200 stress testing and is not approved for use in automotive safety-critical systems or infotainment ports requiring automotive-grade ESD immunity.
PESD3V3S2UAT,215 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 2
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 3.3V (Max)
- Voltage - Breakdown (Min):
- 5.2V
- Voltage - Clamping (Max) @ Ipp:
- 20V
- Current - Peak Pulse (10/1000µs):
- 18A (8/20µs)
- Power - Peak Pulse:
- 330W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 207pF @ 1MHz
- Operating Temperature:
- -65°C ~ 150°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-236AB
PESD3V3S2UAT,215 FAQ
1.How can I place an order for PESD3V3S2UAT,215 through Aetrix?
Please submit a Request for Quotation (RFQ) for PESD3V3S2UAT,215 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 PESD3V3S2UAT,215 reliable?
The price and inventory of PESD3V3S2UAT,215 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PESD3V3S2UAT,215 is usually 5 days.
3.What payment methods are accepted for PESD3V3S2UAT,215?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PESD3V3S2UAT,215 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PESD3V3S2UAT,215?
PESD3V3S2UAT,215 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PESD3V3S2UAT,215 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 PESD3V3S2UAT,215?
For technical support, including PESD3V3S2UAT,215 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PESD3V3S2UAT,215 requirements.
6.How does Aetrix verify that PESD3V3S2UAT,215 is sourced from the original manufacturer or authorized distributors?
All PESD3V3S2UAT,215 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 PESD3V3S2UAT,215 meets industry standards.
7.What is the process for return or replacement of PESD3V3S2UAT,215?
All PESD3V3S2UAT,215 units undergo pre-shipment inspection (PSI). If there is an issue with PESD3V3S2UAT,215, 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 PESD3V3S2UAT,215 part is unused and in its original packaging.
Return procedure for PESD3V3S2UAT,215:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PESD3V3S2UAT,215 Tags
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ESD9B5.0ST5G
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DESD3V3E1BL-7B
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ESD5Z3.3T1G
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D5V0P1B2LP-7B
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ESD5Z5.0T1G
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DESD5V0U1BB-7
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D12V0L1B2LP-7B
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PESD2V0Y1BSFYL
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