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Nexperia USA Inc. PESD24VL1BAZ
- Part No.:
- PESD24VL1BAZ
- Manufacturer:
- Nexperia USA Inc.
- Category:
- TVS Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
PESD24VL1BAZ.pdf
- Description:
- TVS DIODE 24VWM 70VC SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:5,245
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Product details
Overview
PESD24VL1BAZ from Nexperia is a bidirectional ESD protection diode in SOD323 (SC-76) package, designed to safeguard single signal lines against IEC 61000-4-2 level 4 ESD (±23 kV contact), IEC 61000-4-5 surge (3 A, 8/20 µs), with 24 V reverse standoff voltage, 11 pF capacitance, and 70 V clamping voltage at 3 A. It is used on bidirectional data lines in USB, HDMI, and audio interfaces.
For engineers reviewing the PESD24VL1BAZ datasheet, PESD24VL1BAZ pinout, PESD24VL1BAZ application, or PESD24VL1BAZ equivalent, key selection criteria include low capacitance for high-speed signal integrity, bidirectional clamping capability, sub-1 nA leakage at 24 V, and validated 200 W peak pulse power handling per IEC 61000-4-5.
Technical Context
This device implements a symmetrical dual-cathode TVS structure enabling bidirectional transient suppression without polarity constraints. Its 11 pF capacitance at 0 V bias ensures minimal signal distortion on lines up to 500 Mbps, while the 300 Ω differential resistance supports fast response to sub-nanosecond ESD events.
The SOD323 package enables PCB-level placement within 2 mm of I/O connectors, critical for maintaining low-inductance transient return paths. Clamping occurs at ≤70 V under 3 A 8/20 µs surge, limiting downstream IC stress well below typical 1.8 V/3.3 V I/O absolute maximum ratings.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Standoff Voltage | 24 V - Maximum continuous DC voltage the line can carry without triggering conduction. |
| Clamping Voltage | 70 V at 3 A - Peak voltage seen by protected IC during full IEC 61000-4-5 surge event. |
| Diode Capacitance | 11 pF at 1 MHz, 0 V - Enables use on USB 2.0, HDMI DDC, and I²C lines without signal rise-time degradation. |
| ESD Rating | ±23 kV contact per IEC 61000-4-2 - Exceeds industrial immunity requirements for handheld interface ports. |
| Peak Pulse Power | 200 W - Sustains 3 A, 8/20 µs transients without thermal runaway or parametric shift. |
| Leakage Current | <1 nA at 24 V - Prevents DC loading on high-impedance sensor or reference lines. |
Pinout & Package
SOD323 (SC-76) surface-mount plastic package: 2-pin, 1.3 mm pitch, 1.7 mm × 1.25 mm × 0.95 mm body height; marking bar denotes cathode side.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode 1 (K1) | One terminal of symmetrical bidirectional junction; connects to protected line. |
| 2 | Cathode 2 (K2) | Second terminal of symmetrical junction; connects to system ground plane. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables protection of AC-coupled or dual-polarity signals (e.g., USB D+/D−, RS-485) without polarity awareness. |
| 11 pF capacitance | Preserves signal edge rate on 480 Mbps USB 2.0 data lines; adds <0.5% timing skew at 100 MHz. |
| 23 kV ESD immunity | Meets IEC 61000-4-2 level 4 without external series impedance-validates robustness for field-deployed peripherals. |
| Sub-1 nA leakage | Eliminates measurable current draw on battery-backed real-time clock or analog sensor reference lines. |
Applications
| USB 2.0 Interface Protection | HDMI DDC Channel Protection |
|---|---|
Use Scenario: Protecting D+ and D− lines of USB 2.0 host/device ports against user-handling ESD and cable-induced surges. IC Role / Device Role / Timing Role: Bidirectional transient voltage suppressor placed directly at USB connector, clamping transients before reaching PHY IC. Use Value: 11 pF capacitance avoids signal integrity loss across 480 Mbps data rate; 70 V clamping prevents PHY latch-up or oxide damage. |
Use Scenario: Safeguarding HDMI Display Data Channel (DDC) lines (SDA/SCL) from hot-plug ESD and electromagnetic coupling. IC Role / Device Role / Timing Role: Low-capacitance ESD clamp on 3.3 V I²C-compatible DDC bus, located within 3 mm of HDMI receptacle. Use Value: Sub-1 nA leakage preserves I²C pull-up bias; 24 V VRWM matches DDC logic voltage, avoiding false triggering. |
| Audio Line Input Protection | Industrial Sensor Interface Protection |
Use Scenario: Shielding line-in or microphone inputs on consumer audio equipment from ESD during cable insertion or user contact. IC Role / Device Role / Timing Role: Symmetrical ESD shunt on AC-coupled analog audio path, referenced to chassis ground near jack. Use Value: Bidirectional operation handles both positive and negative transient polarity; 11 pF avoids high-frequency attenuation above 20 kHz. |
Use Scenario: Protecting 4–20 mA or 0–10 V analog sensor outputs in factory automation against wiring-induced surges and maintenance ESD. IC Role / Device Role / Timing Role: Standoff-rated protector on sensor output line, placed adjacent to terminal block before signal conditioning stage. Use Value: 24 V VRWM aligns with common industrial supply rails; 200 W pulse rating withstands 3 A surge from inductive load switching. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor NUP4105MR6T1G | Unidirectional; 5 V VRWM; 0.8 pF capacitance; 12 kV ESD rating | Requires polarity-aware layout; suited only for DC-biased unidirectional lines like UART TX/RX | Select when protecting low-voltage, unidirectional digital lines where ultra-low capacitance (<1 pF) outweighs ESD rating. |
| Vishay VEML6030X01 | Not applicable - optical ambient light sensor, not an ESD diode | N/A - incorrect functional category | Exclude; misidentified part with no ESD protection function. |
Compared with PESD24VL1BAZ, NUP4105MR6T1G offers lower capacitance but sacrifices bidirectionality and ESD robustness, making it unsuitable for USB or HDMI; VEML6030X01 is unrelated and must be excluded from ESD protection consideration.
Availability
PESD24VL1BAZ is available at Aetrix Electronics and suitable for USB 2.0 interface protection, HDMI DDC channel hardening, and industrial analog sensor output safeguarding requiring stable component supply and traceable sourcing.
Supply support for PESD24VL1BAZ 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 delivering high-performance, reliable discrete, logic, and MOSFET devices with focus on efficiency, miniaturization, and automotive-grade reliability.
PESD24VL1BAZ belongs to Nexperia's ESD protection portfolio targeting high-speed data interfaces, emphasizing low capacitance, bidirectional symmetry, and IEC-compliant transient resilience for consumer and industrial connectivity.
FAQ
Can PESD24VL1BAZ protect a 5 V USB power line?
No. PESD24VL1BAZ is rated for 24 V reverse standoff and intended only for signal-line protection-not power rails. Its 70 V clamping voltage exceeds safe limits for 5 V supply domains, and its 3 A surge rating does not address sustained overcurrent. Use dedicated power-rail TVS diodes like PESD5V0S1BA for VBUS protection.
Is PESD24VL1BAZ suitable for automotive applications?
No. Per Nexperia's revision history (v.3, April 2023), PESD24VL1BAZ is explicitly non-automotive qualified. It lacks AEC-Q200 stress testing and automotive-grade qualification. For automotive use, select the automotive-qualified variant PESD24VL1BA-Q, which undergoes extended temperature cycling and humidity testing.
What is the recommended PCB layout for optimal ESD performance?
Place PESD24VL1BAZ within 2 mm of the protected connector, route the protected line directly to Pin 1, and connect Pin 2 to a low-inductance ground plane via ≥2 vias. Avoid stubs or parallel traces; keep ground return path length under 5 mm. Do not share the ground connection with noisy digital or power grounds.
Does PESD24VL1BAZ require series impedance for ESD protection?
No. The device is designed for direct placement without external series resistors. Its 300 Ω differential resistance and fast response enable effective clamping of IEC 61000-4-2 ESD pulses without added RC delay. Adding series resistance degrades clamping speed and may cause voltage overshoot beyond 70 V.
PESD24VL1BAZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Package/Case:
- SC-76, SOD-323
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Not For New Designs
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 24V (Max)
- Voltage - Breakdown (Min):
- 25.4V
- Voltage - Clamping (Max) @ Ipp:
- 70V
- Current - Peak Pulse (10/1000µs):
- 3A (8/20µs)
- Power - Peak Pulse:
- 200W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 11pF @ 1MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-323
PESD24VL1BAZ FAQ
1.How can I place an order for PESD24VL1BAZ through Aetrix?
Please submit a Request for Quotation (RFQ) for PESD24VL1BAZ 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 PESD24VL1BAZ reliable?
The price and inventory of PESD24VL1BAZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PESD24VL1BAZ is usually 5 days.
3.What payment methods are accepted for PESD24VL1BAZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PESD24VL1BAZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PESD24VL1BAZ?
PESD24VL1BAZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PESD24VL1BAZ 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 PESD24VL1BAZ?
For technical support, including PESD24VL1BAZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PESD24VL1BAZ requirements.
6.How does Aetrix verify that PESD24VL1BAZ is sourced from the original manufacturer or authorized distributors?
All PESD24VL1BAZ 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 PESD24VL1BAZ meets industry standards.
7.What is the process for return or replacement of PESD24VL1BAZ?
All PESD24VL1BAZ units undergo pre-shipment inspection (PSI). If there is an issue with PESD24VL1BAZ, 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 PESD24VL1BAZ part is unused and in its original packaging.
Return procedure for PESD24VL1BAZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PESD24VL1BAZ Tags
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DESD3V3E1BL-7B
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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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