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Texas Instruments ESD2CAN24DCKRQ1
- Part No.:
- ESD2CAN24DCKRQ1
- Manufacturer:
- Texas Instruments
- Category:
- TVS Diodes
- Package:
- SC-70, SOT-323
- Datasheet:
-
ESD2CAN24DCKRQ1.pdf
- Description:
- AUTOMOTIVE DUAL 3-PF, 24-V, 30-K
- Quantity:
- Payment:
- Shipping:
Inventory:1,405
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Product details
Overview
ESD2CAN24DCKRQ1 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 - deployed in headlight ECUs, door modules, and climate control systems.
For engineers reviewing the ESD2CAN24DCKRQ1 datasheet, ESD2CAN24DCKRQ1 pinout, ESD2CAN24DCKRQ1 application, or ESD2CAN24DCKRQ1 equivalent, this page delivers verified package mapping (SC-70/DCK), channel-specific clamping behavior, ISO 10605 ±27kV compliance, thermal resistance (RθJA = 283.0°C/W), and low-leakage operation (≤50nA at ±24V) critical for high-reliability in-vehicle network design.
Technical Context
The ESD2CAN24DCKRQ1 implements a dual-channel back-to-back TVS structure with symmetrical breakdown (±25.5V min) and ultra-low dynamic resistance (0.35Ω), enabling bidirectional transient suppression on differential CANH/CANL lines without signal polarity constraints. Its clamping action activates only during overvoltage events above VRWM, maintaining <50nA leakage under normal ±24V bias.
Designed specifically for automotive CAN physical layer protection, it supports data rates up to 10Mbps due to 3pF (typ) line capacitance and integrates seamlessly with split-termination (60Ω) networks. The SC-70 (DCK) package provides AOI-compatible leaded routing while meeting stringent thermal requirements (–55°C to +150°C operating range).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage (VRWM) | ±24V - Withstands jump-start short-to-battery events without conduction or damage. |
| Clamping Voltage (VCLAMP) | 37V at 5.7A (8/20µs) - Limits transient voltage seen by downstream CAN transceiver to safe level. |
| I/O Capacitance | 3pF (typ) - Enables clean signal integrity up to 10Mbps for CAN, CAN-FD, and CAN-XL protocols. |
| ESD Rating (IEC 61000-4-2) | ±30kV contact / ±30kV air-gap - Exceeds Level 4 immunity requirement for automotive interior environments. |
| ISO 10605 Rating | ±27kV contact / ±27kV air-gap (330pF/330Ω) - Meets full automotive ESD stress test standard for CAN bus interfaces. |
| Dynamic Resistance (RDYN) | 0.35Ω - Minimizes voltage overshoot during fast ESD transients, improving system-level robustness. |
| Leakage Current (ILEAK) | ≤50nA at ±24V - Prevents power drain in always-on vehicle networks and preserves signal fidelity. |
Pinout & Package
ESD2CAN24DCKRQ1 is housed in a 3-pin SC-70 (DCK) package measuring 2.00mm × 2.10mm, optimized for automatic optical inspection and space-constrained automotive PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | I/O (Channel A) | Protected node for CANH or CANL - bidirectionally clamps transients to GND. |
| 2 | I/O (Channel B) | Second protected node for complementary CAN line - enables full-differential bus protection with single device. |
| 3 | GND | Low-inductance return path for ESD current - must be routed with short, wide trace to minimize clamping voltage rise. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional TVS architecture | Supports differential signaling on CANH/CANL without polarity sensitivity or external biasing. |
| AEC-Q101 qualification | Validated for automotive under-hood and cabin applications across –55°C to +150°C ambient range. |
| Low clamping voltage (37V @ 5.7A) | Protects sensitive CAN transceivers rated ≤40V absolute max, preventing latch-up or permanent damage. |
| 3pF typical I/O capacitance | Preserves signal edge rate and eye diagram integrity at 10Mbps, compatible with CAN-FD and CAN-XL timing budgets. |
| Leaded SC-70 (DCK) package | Enables automated optical inspection and reliable reflow soldering per IPC-J-STD-020 Level-3 moisture sensitivity. |
Applications
| Automotive CAN Transceiver Protection | High-Speed CAN Bus Interface |
|---|---|
Use Scenario: ESD protection for CANH/CANL lines between microcontroller and CAN transceiver in body control module. IC Role / Device Role / Timing Role: Passive bidirectional clamping device placed directly at connector interface to shunt ESD energy before reaching transceiver input pins. Use Value: Prevents field failures caused by ±8kV IEC waveform-induced latch-up, validated by 37V clamping at 5.7A surge current. |
Use Scenario: Signal integrity preservation on 500kbps–1Mbps high-speed CAN backbone linking ADAS domain controllers. IC Role / Device Role / Timing Role: Low-capacitance (3pF) transient suppressor maintaining <1ns signal skew between differential pairs. Use Value: Enables compliance with ISO 11898-2 timing margins while surviving repeated ±27kV ISO 10605 contact discharges. |
| CAN-FD Node Protection | Automotive Door Module ECU |
Use Scenario: ESD hardening of 2Mbps–5Mbps CAN-FD nodes in gateway ECUs handling mixed legacy and high-speed traffic. IC Role / Device Role / Timing Role: Dual-channel TVS with matched capacitance ensuring equal propagation delay on both CANH and CANL paths. Use Value: Supports error-free bit sampling at 5Mbps via 3pF capacitance and sub-0.4Ω dynamic resistance limiting VCLAMP overshoot. |
Use Scenario: Robust interface protection for LIN/CAN hybrid door module controlling window lift, mirror fold, and lock actuation. IC Role / Device Role / Timing Role: AEC-Q101-qualified transient suppressor mounted adjacent to connector to intercept cable-coupled ESD before entering MCU GPIO. Use Value: Eliminates need for secondary board-level filtering; achieves >100,000-cycle reliability under real-world door slam and static discharge conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ESD2CAN24DBZRQ1 | SOT-23 (DBZ) package; RθJA = 291.5°C/W; same electrical specs including 3pF capacitance and 37V clamping. | Preferred for higher-power dissipation scenarios or when larger pad layout accommodates 2.92mm × 2.37mm footprint. | Select when thermal management requires lower junction-to-ambient resistance or existing layout uses SOT-23 land pattern. |
| ESD2CANFD24DCKRQ1 | Optimized for CAN-FD: 2.5pF capacitance, 37V clamping at 3.5A, ±25kV IEC rating - trades peak surge capacity for lower capacitance. | Better suited for 2–5Mbps CAN-FD nodes where signal integrity dominates over extreme surge margin. | Choose when designing new CAN-FD systems targeting 5Mbps+ with tighter timing budgets and moderate ESD exposure. |
Compared with ESD2CAN24DCKRQ1, ESD2CAN24DBZRQ1 offers superior thermal performance in space-permissive designs, while ESD2CANFD24DCKRQ1 delivers lower capacitance for higher-speed CAN-FD - making ESD2CAN24DCKRQ1 the balanced choice for general-purpose 24V automotive CAN protection requiring maximum ESD margin and compact SC-70 fit.
Availability
ESD2CAN24DCKRQ1 is available at Aetrix Electronics and suitable for automotive ECU design, CAN bus interface development, and industrial control network deployment requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for ESD2CAN24DCKRQ1 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 for automotive, industrial, and personal electronics markets.
ESD2CAN24DCKRQ1 belongs to TI's automotive-qualified ESD protection portfolio, engineered specifically for robust, low-capacitance transient suppression on CAN, CAN-FD, and CAN-XL physical layers in safety-critical vehicle networks.
FAQ
What is the maximum continuous operating voltage for ESD2CAN24DCKRQ1?
The ESD2CAN24DCKRQ1 has a reverse stand-off voltage (VRWM) of ±24V, meaning it remains non-conductive and fully functional under steady-state voltages within this range - protecting against jump-start battery reversal events without leakage or degradation. This rating is confirmed in Section 5.7 of the official datasheet.
Does ESD2CAN24DCKRQ1 support CAN-FD data rates up to 5Mbps?
Yes, ESD2CAN24DCKRQ1 supports CAN-FD operation up to 5Mbps due to its 3pF typical I/O capacitance and low dynamic resistance (0.35Ω), which preserve signal integrity and limit timing skew. Its clamping behavior at 37V under 5.7A surge ensures transceiver protection without compromising high-speed waveform fidelity.
Is ESD2CAN24DCKRQ1 qualified for automotive under-hood applications?
Yes, ESD2CAN24DCKRQ1 is AEC-Q101 qualified and rated for operation from –55°C to +150°C, making it suitable for under-hood and cabin-mounted ECUs. Its thermal resistance (RθJA = 283.0°C/W in SC-70) and robust ESD ratings (±27kV ISO 10605) meet automotive environmental stress requirements.
How does the pinout of ESD2CAN24DCKRQ1 map to CANH and CANL signals?
Pin 1 connects to one CAN bus line (e.g., CANH), Pin 2 to the other (e.g., CANL), and Pin 3 to system ground - forming two independent bidirectional clamping paths. This symmetric configuration protects both differential lines equally without polarity constraints, as defined in Table 4-1 of the datasheet.
What is the leakage current specification for ESD2CAN24DCKRQ1 at rated voltage?
ESD2CAN24DCKRQ1 exhibits ≤50nA leakage current at ±24V bias (VRWM), measured per channel at TA = 25°C. This ultra-low leakage prevents unnecessary power draw in always-on vehicle networks and avoids signal distortion in high-impedance CAN receiver inputs.
ESD2CAN24DCKRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- SC-70, SOT-323
- 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:
- SC-70-3
ESD2CAN24DCKRQ1 FAQ
1.How can I place an order for ESD2CAN24DCKRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for ESD2CAN24DCKRQ1 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 ESD2CAN24DCKRQ1 reliable?
The price and inventory of ESD2CAN24DCKRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ESD2CAN24DCKRQ1 is usually 5 days.
3.What payment methods are accepted for ESD2CAN24DCKRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ESD2CAN24DCKRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ESD2CAN24DCKRQ1?
ESD2CAN24DCKRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ESD2CAN24DCKRQ1 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 ESD2CAN24DCKRQ1?
For technical support, including ESD2CAN24DCKRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ESD2CAN24DCKRQ1 requirements.
6.How does Aetrix verify that ESD2CAN24DCKRQ1 is sourced from the original manufacturer or authorized distributors?
All ESD2CAN24DCKRQ1 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 ESD2CAN24DCKRQ1 meets industry standards.
7.What is the process for return or replacement of ESD2CAN24DCKRQ1?
All ESD2CAN24DCKRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with ESD2CAN24DCKRQ1, 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 ESD2CAN24DCKRQ1 part is unused and in its original packaging.
Return procedure for ESD2CAN24DCKRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ESD2CAN24DCKRQ1 Tags
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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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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