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Nexperia USA Inc. PESD3V3L1BA-QX
- Part No.:
- PESD3V3L1BA-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- TVS Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
PESD3V3L1BA-QX.pdf
- Description:
- PESD3V3L1BA-Q/SOD323/SOD2
- Quantity:
- Payment:
- Shipping:
Inventory:8,810
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Product details
Overview
PESD3V3L1BA-Q from Nexperia is a bidirectional ESD protection diode in SOD323 (SC-76) package, designed to protect single signal lines against IEC 61000-4-2 level 4 ESD (±30 kV contact), with 3.3 V reverse standoff voltage, 101 pF capacitance at 1 MHz, 26 V clamping voltage at 18 A surge, and AEC-Q101 qualification for automotive CAN bus and data line protection.
For engineers reviewing the PESD3V3L1BA-Q datasheet, PESD3V3L1BA-Q pinout, PESD3V3L1BA-Q application, or PESD3V3L1BA-Q equivalent, key selection criteria include low capacitance for high-speed signal integrity, bidirectional clamping for AC-coupled lines, AEC-Q101 compliance for automotive deployment, and sub-100 pF loading on USB/MIPI/CAN interfaces.
Technical Context
This device implements a dual-cathode, bidirectional TVS structure-two back-to-back Zener-like junctions sharing a common anode node-to clamp both positive and negative transients without polarity constraints. It operates within ±3.3 V signal swing windows while maintaining <0.09 µA leakage at VRWM.
Clamping response follows IEC 61000-4-2 (15 kV air / 30 kV contact) and IEC 61000-4-5 (18 A, 8/20 µs surge), delivering 26 V clamping at peak current with 400 Ω differential resistance-enabling fast transient suppression while minimizing signal distortion on bidirectional data paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Standoff Voltage | 3.3 V - Maximum continuous DC or RMS signal voltage before conduction begins; ensures no interference with 3.3 V logic or USB 2.0 data lines. |
| Diode Capacitance | 101 pF at 1 MHz, 0 V - Low enough for <100 Mbps signal integrity on CAN FD or audio I²S lines without measurable rise-time degradation. |
| Clamping Voltage | 26 V at 18 A (8/20 µs) - Limits transient overvoltage to safe levels for downstream 3.3 V interface ICs during IEC 61000-4-5 surges. |
| ESD Withstand | ±30 kV contact discharge (IEC 61000-4-2 Level 4) - Meets automotive infotainment port immunity requirements without external shielding. |
| Peak Pulse Power | 500 W (non-repetitive, 8/20 µs) - Sustains high-energy transients typical of hot-plug events or relay switching noise in vehicle ECUs. |
| Junction Temperature Range | −65 °C to +150 °C - Supports under-hood placement in automotive modules per AEC-Q101 stress test qualification. |
Pinout & Package
SOD323 (SC-76) surface-mount plastic package: 2-pin, 1.3 mm pitch, 1.7 × 1.25 × 0.95 mm body, cathode-marked end (bar), optimized for reflow soldering per JEDEC J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (Diode 1) | Connects to protected line; forms one half of bidirectional clamping path when transient exceeds −VRWM. |
| 2 | Cathode (Diode 2) | Connects to same protected line; completes symmetrical clamping path for positive transients exceeding +VRWM. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional ESD Clamping | Enables protection of AC-coupled or differential signals (e.g., CAN H/L, USB D+/D−) without polarity biasing or external components. |
| Ultra-Low Leakage Current | 0.09 µA max at 3.3 V - Prevents DC loading and battery drain in always-on automotive telematics modules. |
| AEC-Q101 Qualified | Validated for automotive use per stress tests including HTGB, HTRB, and temperature cycling - supports ASIL-B system integration. |
| Sub-100 pF Signal Loading | 101 pF typical capacitance - preserves signal edge rate on 50–100 Mbps serial buses without requiring layout compensation. |
Applications
| Automotive CAN Bus Protection | USB 2.0 Data Line Protection |
|---|---|
Use Scenario: Protecting CAN_H and CAN_L lines in body control modules against ESD from connector mating/unmating and cable discharge. IC Role / Device Role / Timing Role: Bidirectional transient voltage suppressor placed directly at OBD-II or module connector entry point. Use Value: Maintains CAN signal integrity up to 1 Mbps while surviving 30 kV contact ESD pulses per ISO 10605, eliminating need for discrete RC filters. |
Use Scenario: Shielding USB 2.0 D+ and D− lines in infotainment head units from user-hand ESD during plug insertion. IC Role / Device Role / Timing Role: Low-capacitance ESD clamp mounted within 3 mm of USB receptacle, referenced to chassis ground. Use Value: 101 pF loading avoids USB eye diagram closure; 26 V clamping prevents PHY latch-up during ±8 kV HBM events. |
| Industrial Sensor Interface Protection | Audio Line Input Protection |
Use Scenario: Safeguarding RS-485 or I²C lines connecting temperature/humidity sensors to PLC backplanes exposed to factory floor ESD. IC Role / Device Role / Timing Role: Point-of-entry protection on sensor cable entry PCB, paired with local ground plane stitching vias. Use Value: 400 Ω differential resistance enables fast clamping (<1 ns response) without distorting 100 kHz sensor update timing. |
Use Scenario: Protecting analog audio inputs (e.g., 3.5 mm jack) in car amplifiers from headphone cable static discharge. IC Role / Device Role / Timing Role: Series-connected ESD diode on each input line, grounded via short trace to audio ground plane. Use Value: 0.09 µA leakage prevents DC offset shift in op-amp input stages; 3.3 V VRWM avoids clipping of ±2 V audio peaks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor ESD9B3.3ST5G | Higher capacitance (130 pF), lower clamping (22 V at 12 A), same SOD-323 footprint. | Better for lower-voltage 1.8 V I/O but less suitable for 3.3 V CAN due to tighter clamping margin. | Select when lower clamping voltage outweighs capacitance penalty on slower interfaces like I²C. |
| Vishay ESDBLE3.3D04 | Lower capacitance (65 pF), higher VRWM (5 V), AEC-Q101 qualified, same package. | Compatible with 5 V tolerant microcontrollers but risks false triggering on 3.3 V-only CAN transceivers. | Prefer for mixed-voltage systems where 5 V logic coexists with 3.3 V analog sections. |
Compared with ESD9B3.3ST5G and ESDBLE3.3D04, PESD3V3L1BA-Q uniquely balances 3.3 V standoff, 101 pF loading, and 30 kV ESD rating-making it optimal for automotive CAN FD and USB 2.0 ports where voltage margin and speed are equally critical.
Availability
PESD3V3L1BA-Q is available at Aetrix Electronics and suitable for automotive CAN bus protection, USB 2.0 interface hardening, and industrial sensor I/O requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for PESD3V3L1BA-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 logic, discrete, and MOSFET devices, with manufacturing rooted in process technology leadership and automotive-grade quality systems.
This device belongs to Nexperia's Automotive-qualified ESD Protection Diode product line, engineered specifically for robust transient suppression in safety-critical vehicle networks and high-speed consumer interfaces.
FAQ
What is the maximum operating temperature for PESD3V3L1BA-Q in continuous use?
The device supports continuous operation from −65 °C to +150 °C junction temperature. Its AEC-Q101 qualification confirms reliability under automotive thermal cycling (−40 °C to +125 °C ambient) and high-temperature storage up to 150 °C, making it suitable for engine bay or powertrain control unit deployments.
Can PESD3V3L1BA-Q be used to protect differential pairs like LVDS or MIPI D-PHY?
No-this is a single-line bidirectional protector. LVDS and MIPI D-PHY require matched dual-channel ESD arrays (e.g., PESD2CAN) to preserve common-mode rejection and skew control. Using two discrete PESD3V3L1BA-Q units introduces capacitance mismatch and timing skew that degrade high-speed differential signaling.
Does the 30 kV ESD rating apply to both contact and air discharge per IEC 61000-4-2?
Yes-the datasheet specifies ±30 kV for contact discharge and ±15 kV for air discharge per IEC 61000-4-2. The 30 kV rating reflects worst-case human-body-model-like contact events (e.g., finger touch on metal shell), validated across ten non-repetitive pulses at 25 °C ambient.
How does the 26 V clamping voltage interact with a 3.3 V supply rail during surge events?
The 26 V clamping occurs only during high-current transients (18 A, 8/20 µs); it does not affect normal 3.3 V operation. Downstream ICs must tolerate this transient overvoltage for its duration (≤20 µs). Layout best practices-short traces, low-inductance ground return-ensure clamping energy diverts away from sensitive circuitry.
PESD3V3L1BA-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:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 3.3V (Max)
- Voltage - Breakdown (Min):
- 5.8V
- Voltage - Clamping (Max) @ Ipp:
- 26V
- Current - Peak Pulse (10/1000µs):
- 18A (8/20µs)
- Power - Peak Pulse:
- 500W
- Power Line Protection:
- No
- Applications:
- CAN, Telecom
- Capacitance @ Frequency:
- 101pF @ 1MHz
- Operating Temperature:
- -65°C ~ 150°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-323
PESD3V3L1BA-QX FAQ
1.How can I place an order for PESD3V3L1BA-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for PESD3V3L1BA-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 PESD3V3L1BA-QX reliable?
The price and inventory of PESD3V3L1BA-QX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PESD3V3L1BA-QX is usually 5 days.
3.What payment methods are accepted for PESD3V3L1BA-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PESD3V3L1BA-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PESD3V3L1BA-QX?
PESD3V3L1BA-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PESD3V3L1BA-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 PESD3V3L1BA-QX?
For technical support, including PESD3V3L1BA-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PESD3V3L1BA-QX requirements.
6.How does Aetrix verify that PESD3V3L1BA-QX is sourced from the original manufacturer or authorized distributors?
All PESD3V3L1BA-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 PESD3V3L1BA-QX meets industry standards.
7.What is the process for return or replacement of PESD3V3L1BA-QX?
All PESD3V3L1BA-QX units undergo pre-shipment inspection (PSI). If there is an issue with PESD3V3L1BA-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 PESD3V3L1BA-QX part is unused and in its original packaging.
Return procedure for PESD3V3L1BA-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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