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Nexperia USA Inc. PESD24VU2BT-QR
- Part No.:
- PESD24VU2BT-QR
- Manufacturer:
- Nexperia USA Inc.
- Category:
- TVS Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
PESD24VU2BT-QR.pdf
- Description:
- BIPOLAR DISCRETES
- Quantity:
- Payment:
- Shipping:
Inventory:2,825
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Product details
Overview
PESD24VU2BT-QR from Nexperia is a dual-channel automotive-grade ESD protection diode in SOT23 package, designed to safeguard two in-vehicle network lines (e.g., CAN-FD and CAN) against ±15 kV IEC 61000-4-2 ESD strikes, with 24 V reverse standoff voltage, 33 V clamping at 1 A, and 3.5 pF capacitance.
For engineers reviewing the PESD24VU2BT-QR datasheet, PESD24VU2BT-QR pinout, PESD24VU2BT-QR application, or PESD24VU2BT-QR equivalent, this device is selected for high-speed, low-capacitance transient suppression in AEC-Q101-compliant automotive bus interfaces where signal integrity and junction temperature resilience up to 175 °C are critical.
Technical Context
This bidirectional dual-cathode TVS diode integrates two independent ESD protection paths between pins 1–3 and 2–3, enabling common-cathode configuration for differential bus lines. Its low dynamic resistance (<1 Ω) and fast response ensure effective clamping of sub-ns ESD transients without distorting data signals.
The device operates within a -55 °C to +175 °C ambient range and maintains stable clamping performance across temperature due to its silicon avalanche structure. It meets both IEC 61000-4-2 (±15 kV contact) and ISO 10605 (±15 kV, 150 pF/330 Ω) standards, with verified clamping waveforms down to 30 ns.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Standoff Voltage | 24 V - Ensures no conduction during normal 24 V bus operation; defines maximum continuous working voltage. |
| Clamping Voltage | 33 V (typ.) at 1 A - Limits transient voltage seen by downstream transceiver during 8/20 µs surge, protecting IC inputs. |
| ESD Withstand | ±15 kV IEC 61000-4-2 - Guarantees robustness against human-body-model ESD events in assembly and field use. |
| Diode Capacitance | 3.5 pF - Minimizes signal distortion on high-speed buses like CAN-FD (up to 5 Mbps) and FlexRay (10 Mbps). |
| Junction Temperature | 175 °C max - Supports under-hood placement near engine control units without thermal derating. |
| Peak Pulse Current | 1.9 A (8/20 µs) - Handles repetitive surges per ISO 7637-3 without degradation. |
Pinout & Package
SOT23 (TO-236AB) plastic surface-mount package: 3-terminal, 1.9 mm pitch, 2.9 mm × 1.3 mm × 1.0 mm body; optimized for automated reflow soldering per IPC-7095 guidelines.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | K1 (Cathode 1) | Connects to first protected line (e.g., CANH); forms unidirectional clamp path to common cathode. |
| 2 | K2 (Cathode 2) | Connects to second protected line (e.g., CANL); enables symmetrical dual-line protection topology. |
| 3 | CC (Common Cathode) | Shared return path to ground or chassis; establishes reference for bidirectional clamping action. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-line ESD protection | Single SOT23 device protects two independent bus lines (e.g., CANH/CANL), reducing PCB footprint vs. discrete diodes. |
| AEC-Q101 qualification | Validated for automotive use per stress test requirements including HTGB, HTRB, and ESD robustness-no additional qualification needed. |
| Low capacitance (3.5 pF) | Preserves signal edge rate and eye diagram integrity on CAN-FD and SENT buses operating above 2 Mbps. |
| High-temperature operation | Rated for continuous operation at 175 °C junction temperature-enables placement near powertrain ECUs without heatsinking. |
Applications
| CAN-FD Bus Protection | CAN Bus Protection |
|---|---|
|
Use Scenario: Protecting high-speed Controller Area Network Flexible Data-Rate (CAN-FD) transceivers in ADAS domain controllers. IC Role / Device Role / Timing Role: ESD transient suppressor placed directly at connector interface, clamping fast-rising ESD pulses before they reach the transceiver's I/O pins. Use Value: Maintains 5 Mbps data integrity by limiting clamped voltage to ≤33 V while adding only 3.5 pF loading-no signal rise-time degradation. |
Use Scenario: Safeguarding legacy CAN 2.0B nodes in body control modules exposed to service technician ESD events. IC Role / Device Role / Timing Role: Dual-line protector for differential CANH/CANL pair, referenced to vehicle chassis ground via pin 3. Use Value: Delivers ±15 kV IEC 61000-4-2 immunity without requiring external RC filters or layout compromises. |
| FlexRay Bus Protection | SENT Sensor Interface Protection |
|
Use Scenario: Shielding FlexRay communication links in powertrain gateways operating at 10 Mbps with strict EMC requirements. IC Role / Device Role / Timing Role: Low-capacitance transient voltage suppressor mounted adjacent to FlexRay connector, minimizing stub length. Use Value: Enables compliance with ISO 11452-4 radiated immunity testing by preventing ESD-induced bit errors during 10 Mbps burst transmission. |
Use Scenario: Securing Single Edge Nibble Transmission (SENT) outputs from pressure/temperature sensors in engine compartments. IC Role / Device Role / Timing Role: Point-of-entry ESD clamp on SENT signal line, referenced to local sensor ground through common cathode. Use Value: Prevents latch-up or permanent damage to SENT transmitter ICs during manufacturing handling or field maintenance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-line automotive ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor SZ1.5SMC27A | Unidirectional, single-line, higher clamping (47 V), larger SMC package (7.1 mm × 6.2 mm) | Requires two devices for dual-line protection; unsuitable for space-constrained CAN-FD layouts | Select only when board area is unconstrained and unidirectional protection suffices. |
| Vishay VE15A02 | Bidirectional, dual-line, but rated for 12 V VRWM and 25 V VCL-lower voltage headroom for 24 V systems | Limited to 12 V networks; may conduct during load-dump transients in 24 V commercial vehicles | Use only in 12 V passenger car applications with verified bus voltage margins. |
Compared with SZ1.5SMC27A and VE15A02, PESD24VU2BT-QR uniquely combines 24 V standoff, 33 V clamping, 3.5 pF capacitance, and AEC-Q101 qualification in a 2.9 mm × 1.3 mm SOT23 package-enabling compact, high-reliability dual-line protection for modern 24 V commercial vehicle networks.
Availability
PESD24VU2BT-QR is available at Aetrix Electronics and suitable for CAN-FD gateway modules, automotive body control units, and commercial vehicle FlexRay networks requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for PESD24VU2BT-QR 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 solutions, with deep expertise in automotive-grade protection devices.
This device belongs to Nexperia's Automotive ESD Protection portfolio, engineered specifically for robust, low-capacitance transient suppression on high-speed in-vehicle networks including CAN-FD, FlexRay, and SENT.
FAQ
What is the maximum peak pulse current rating for PESD24VU2BT-QR?
The rated peak pulse current (IPPM) is 1.9 A under 8/20 µs waveform conditions per IEC 61000-4-5. This value is measured from either pin 1 or pin 2 to pin 3 and reflects the device's ability to safely divert transient energy without failure during standardized surge tests.
Does PESD24VU2BT-QR require external biasing or control signals?
No. PESD24VU2BT-QR is a passive, bidirectional avalanche diode array with no external control pins or bias requirements. It operates automatically upon detection of overvoltage transients, clamping between the protected line and common cathode (pin 3) without power or enable signals.
Can PESD24VU2BT-QR be used on 12 V automotive buses?
Yes-it is compatible with 12 V systems, though its 24 V reverse standoff provides extra margin against load-dump transients and ensures zero leakage below 24 V. Its 3.5 pF capacitance and ±15 kV ESD rating make it equally effective on 12 V CAN or LIN networks.
How is thermal performance validated for under-hood deployment?
Thermal validation includes AEC-Q101 high-temperature operating life (HTOL) testing at 175 °C junction temperature for 1000 hours, plus thermal cycling from -55 °C to +175 °C for 1000 cycles. The SOT23 package's low thermal resistance (RθJA ≈ 300 K/W) supports direct mounting on copper pours for enhanced heat dissipation.
PESD24VU2BT-QR 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:
- -
- Bidirectional Channels:
- 2
- Voltage - Reverse Standoff (Typ):
- 24V (Max)
- Voltage - Breakdown (Min):
- 25.5V
- Voltage - Clamping (Max) @ Ipp:
- 43V
- Current - Peak Pulse (10/1000µs):
- 1.9A (8/20µs)
- Power - Peak Pulse:
- -
- Power Line Protection:
- No
- Applications:
- CAN
- Capacitance @ Frequency:
- 3.2pF @ 1MHz
- Operating Temperature:
- -55°C ~ 175°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-236AB
PESD24VU2BT-QR FAQ
1.How can I place an order for PESD24VU2BT-QR through Aetrix?
Please submit a Request for Quotation (RFQ) for PESD24VU2BT-QR 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 PESD24VU2BT-QR reliable?
The price and inventory of PESD24VU2BT-QR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PESD24VU2BT-QR is usually 5 days.
3.What payment methods are accepted for PESD24VU2BT-QR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PESD24VU2BT-QR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PESD24VU2BT-QR?
PESD24VU2BT-QR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PESD24VU2BT-QR 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 PESD24VU2BT-QR?
For technical support, including PESD24VU2BT-QR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PESD24VU2BT-QR requirements.
6.How does Aetrix verify that PESD24VU2BT-QR is sourced from the original manufacturer or authorized distributors?
All PESD24VU2BT-QR 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 PESD24VU2BT-QR meets industry standards.
7.What is the process for return or replacement of PESD24VU2BT-QR?
All PESD24VU2BT-QR units undergo pre-shipment inspection (PSI). If there is an issue with PESD24VU2BT-QR, 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 PESD24VU2BT-QR part is unused and in its original packaging.
Return procedure for PESD24VU2BT-QR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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