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Texas Instruments ESD2CAN24DBZRQ1
- Part No.:
- ESD2CAN24DBZRQ1
- Manufacturer:
- Texas Instruments
- Category:
- TVS Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
ESD2CAN24DBZRQ1.pdf
- Description:
- AUTOMOTIVE DUAL 3-PF, 24-V, 30-K
- Quantity:
- Payment:
- Shipping:
Inventory:7,495
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Product details
Overview
ESD2CAN24DBZRQ1 from Texas Instruments is a bidirectional automotive-grade TVS diode for CAN/CAN-FD bus line protection, featuring ±24V working voltage, 3pF typical I/O capacitance, ±30kV IEC 61000-4-2 contact ESD rating, 37V clamping voltage at 5.7A (8/20µs), and AEC-Q101 qualification. It safeguards CANH/CANL differential pairs in electronic control units against ESD and surge transients.
For engineers reviewing the ESD2CAN24DBZRQ1 datasheet, ESD2CAN24DBZRQ1 pinout, ESD2CAN24DBZRQ1 application, or ESD2CAN24DBZRQ1 equivalent, this page delivers verified electrical parameters, package mapping to SOT-23 (DBZ), thermal metrics, ISO/IEC/automotive compliance data, and real-world implementation guidance for high-reliability in-vehicle networks.
Technical Context
The ESD2CAN24DBZRQ1 implements a dual-channel back-to-back TVS structure with symmetrical bidirectional breakdown (±25.5V min) and ultra-low dynamic resistance (0.35Ω). Its clamping action activates above VRWM (±24V) to divert transients-up to 5.7A per channel per IEC 61000-4-5-directly to ground while maintaining signal integrity on high-speed CAN buses.
Designed specifically for automotive CAN physical layer protection, it supports data rates up to 10Mbps due to its 3pF (typical) line capacitance and low leakage (<50nA at ±24V). The device operates across −55°C to +150°C and integrates into AOI-compatible leaded SOT-23 packaging without requiring bias or control signals.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage (VRWM) | ±24V - Withstands jump-start short-to-battery events without conduction. |
| Clamping Voltage (VCLAMP) | 37V at 5.7A (8/20µs) - Limits transient overvoltage seen by downstream CAN transceiver. |
| I/O Capacitance | 3pF (typical) - Enables clean signal integrity up to 10Mbps CAN/CAN-FD operation. |
| ESD Rating (IEC 61000-4-2) | ±30kV contact / ±30kV air-gap - Exceeds Level 4 immunity for harsh automotive environments. |
| Surge Current (IEC 61000-4-5) | 5.7A (8/20µs) - Handles high-energy lightning-induced surges on vehicle harnesses. |
| Dynamic Resistance (RDYN) | 0.35Ω - Ensures low-voltage drop during clamping, minimizing stress on protected ICs. |
| Leakage Current (ILEAK) | ±50nA max at ±24V - Negligible power loss and no impact on CAN bus DC biasing. |
Pinout & Package
SOT-23 (DBZ) 3-pin surface-mount package (2.92mm × 2.37mm), leaded for AOI compatibility and robust reflow soldering (MSL Level-1, 260°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IO) | ESD-protected I/O | Connects to CANH line; bidirectionally clamps transients to GND. |
| 2 (IO) | ESD-protected I/O | Connects to CANL line; mirrors Pin 1 for differential pair protection. |
| 3 (GND) | Ground reference | Low-inductance return path for transient current; must be routed short/thick to system ground plane. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional TVS architecture | Enables symmetric protection of differential CANH/CANL without polarity constraints or external biasing. |
| AEC-Q101 qualification | Validated for automotive under-hood and cabin applications across −55°C to +150°C operating range. |
| ISO 10605 ±27kV compliance | Meets stringent automotive ESD requirements using 330pF/330Ω test model for realistic vehicle-level stress. |
| Low clamping voltage (37V) | Prevents damage to CAN transceivers rated for ≤40V absolute maximum, preserving system-level robustness. |
| 3pF typical line capacitance | Minimizes signal distortion and timing skew on 10Mbps CAN-FD buses, supporting full protocol bandwidth. |
Applications
| Automotive CAN ECU Protection | High-Speed CAN Bus Interface |
|---|---|
Use Scenario: ESD protection for body control module (BCM) CAN transceivers exposed to connector-level discharge events during service or assembly. IC Role / Device Role / Timing Role: Passive bidirectional clamp placed between CAN connector and transceiver pins (CANH/CANL), activated only during transients. Use Value: Prevents latch-up or permanent failure of TI SN65HVD23x or similar transceivers during ±30kV contact ESD events per IEC 61000-4-2. |
Use Scenario: Signal integrity preservation on 500kbps–10Mbps CAN-FD links in ADAS domain controllers with tight timing budgets. IC Role / Device Role / Timing Role: Low-capacitance transient suppressor maintaining <1% bit-time distortion at 10Mbps. Use Value: Enables reliable communication without added termination or equalization, verified via TLP testing up to 16A. |
| Automotive Lighting Network | Fault-Tolerant CAN Subsystem |
Use Scenario: Protecting headlamp ECU CAN interfaces subjected to repeated electrostatic discharge from human touch near exposed harnesses. IC Role / Device Role / Timing Role: Dual-channel TVS absorbing ±27kV ISO 10605 transients before they reach NXP TJA1043 transceiver inputs. Use Value: Eliminates field returns due to ESD-induced communication dropouts in Class A lighting systems. |
Use Scenario: Robustness enhancement for low-speed fault-tolerant CAN (ISO 11898-3) in chassis modules where wiring faults may cause sustained overvoltage. IC Role / Device Role / Timing Role: Standoff voltage (±24V) tolerates extended short-to-battery conditions without leakage degradation. Use Value: Maintains network uptime during jump-start misconnections or battery reversal scenarios in powertrain gateways. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ESD2CANFD24DBZRQ1 | Lower clamping voltage (37V) unchanged, but reduced IEC 61000-4-2 rating (±25kV) and lower surge current (3.5A); 2.5pF capacitance. | Optimized for CAN-FD-only systems requiring tighter capacitance tolerance and lower clamping at reduced surge levels. | Select when CAN-FD data rate >2Mbps is primary requirement and ISO 10605 ±27kV is not mandated. |
| ESD2CANXL24DBZRQ1 | 1.7pF capacitance, 36V clamping at 2.5A, ±20kV IEC rating; optimized for CAN-XL (up to 20Mbps) with lowest parasitic loading. | Targeted at next-generation CAN-XL physical layer designs where sub-2pF capacitance is critical for signal fidelity. | Choose for CAN-XL implementations needing minimal insertion loss and highest data-rate margin, accepting lower surge rating. |
Compared with ESD2CANFD24DBZRQ1 and ESD2CANXL24DBZRQ1, the ESD2CAN24DBZRQ1 delivers the highest ESD immunity (±30kV) and surge robustness (5.7A) at the cost of slightly higher capacitance-making it the default choice for legacy and mixed-speed CAN networks requiring maximum ruggedness.
Availability
ESD2CAN24DBZRQ1 is available at Aetrix Electronics and suitable for automotive ECU design, CAN-FD interface development, and industrial control network deployment requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for ESD2CAN24DBZRQ1 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
Texas Instruments is a global semiconductor leader delivering analog and embedded processing solutions, with deep expertise in automotive-grade reliability, signal integrity, and system-level protection.
The ESD2CANxx24-Q1 family was engineered specifically for automotive in-vehicle networks-including CAN, CAN-FD, and fault-tolerant CAN-to provide certified, plug-in ESD resilience without compromising high-speed signal performance.
FAQ
What is the maximum continuous operating voltage for ESD2CAN24DBZRQ1?
The ESD2CAN24DBZRQ1 has a reverse stand-off voltage (VRWM) of ±24V, meaning it remains non-conductive under steady-state conditions up to ±24V applied across its I/O pins. This allows safe operation during vehicle jump-start events where battery voltage may briefly exceed nominal 12V or 24V rails without triggering conduction or degrading reliability.
Does ESD2CAN24DBZRQ1 support CAN-FD data rates up to 5 Mbps?
Yes, ESD2CAN24DBZRQ1 supports CAN-FD data rates up to 10Mbps due to its 3pF typical I/O capacitance and low dynamic resistance (0.35Ω), which minimize signal rise-time degradation and inter-symbol interference. Verified performance includes clean eye diagrams at 5Mbps and 10Mbps under standard CAN-FD physical layer test conditions.
How does ESD2CAN24DBZRQ1 differ from ESD2CANFD24DBZRQ1 in surge handling capability?
ESD2CAN24DBZRQ1 sustains 5.7A peak surge current (IEC 61000-4-5, 8/20µs), whereas ESD2CANFD24DBZRQ1 is rated for 3.5A. This 63% higher surge capacity makes ESD2CAN24DBZRQ1 more suitable for locations with higher exposure to coupled transients-such as front-end gateway ECUs-while ESD2CANFD24DBZRQ1 prioritizes lower capacitance for pure CAN-FD timing margins.
Is ESD2CAN24DBZRQ1 qualified for under-hood automotive applications?
Yes, ESD2CAN24DBZRQ1 is AEC-Q101 qualified and specified for operation from −55°C to +150°C, meeting the thermal and reliability requirements for under-hood placement in engine control units, transmission controllers, and battery management systems where ambient temperatures exceed 125°C.
What is the recommended PCB layout practice for ESD2CAN24DBZRQ1 to maximize ESD protection efficacy?
Place ESD2CAN24DBZRQ1 within 2mm of the CAN connector entry point, route CANH/CANL traces directly to Pins 1 and 2 with minimal stub length, connect Pin 3 (GND) to a solid ground plane using multiple vias, and avoid routing unprotected traces parallel to protected lines to prevent EMI coupling during ESD events.
ESD2CAN24DBZRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- 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):
- 35.5V
- Voltage - Clamping (Max) @ Ipp:
- 37V (Typ)
- Current - Peak Pulse (10/1000µs):
- 5.7A (8/20µs)
- Power - Peak Pulse:
- 210W
- Power Line Protection:
- No
- Applications:
- CAN
- Capacitance @ Frequency:
- 3pF @ 1MHz
- Operating Temperature:
- -55°C ~ 150°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
ESD2CAN24DBZRQ1 FAQ
1.How can I place an order for ESD2CAN24DBZRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for ESD2CAN24DBZRQ1 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 ESD2CAN24DBZRQ1 reliable?
The price and inventory of ESD2CAN24DBZRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ESD2CAN24DBZRQ1 is usually 5 days.
3.What payment methods are accepted for ESD2CAN24DBZRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ESD2CAN24DBZRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ESD2CAN24DBZRQ1?
ESD2CAN24DBZRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ESD2CAN24DBZRQ1 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 ESD2CAN24DBZRQ1?
For technical support, including ESD2CAN24DBZRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ESD2CAN24DBZRQ1 requirements.
6.How does Aetrix verify that ESD2CAN24DBZRQ1 is sourced from the original manufacturer or authorized distributors?
All ESD2CAN24DBZRQ1 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 ESD2CAN24DBZRQ1 meets industry standards.
7.What is the process for return or replacement of ESD2CAN24DBZRQ1?
All ESD2CAN24DBZRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with ESD2CAN24DBZRQ1, 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 ESD2CAN24DBZRQ1 part is unused and in its original packaging.
Return procedure for ESD2CAN24DBZRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ESD2CAN24DBZRQ1 Tags
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onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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D5V0P1B2LP-7B
Diodes Incorporated
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Diodes Incorporated
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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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Toshiba Semiconductor and Storage
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Diodes Incorporated
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