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Texas Instruments ESD2CANFD24DBZRQ1
- Part No.:
- ESD2CANFD24DBZRQ1
- Manufacturer:
- Texas Instruments
- Category:
- TVS Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
ESD2CANFD24DBZRQ1.pdf
- Description:
- AUTOMOTIVE, DUAL, 2.5PF 24-V 25-
- Quantity:
- Payment:
- Shipping:
Inventory:9,831
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Product details
Overview
ESD2CANFD24DBZRQ1 from Texas Instruments is a bidirectional automotive-grade TVS diode for CAN-FD bus line protection, featuring ±25 kV IEC 61000-4-2 contact ESD rating, 2.5 pF typical I/O capacitance, 37 V clamping voltage at 3.5 A (8/20 µs), and AEC-Q101 qualification for operation from –55°C to +150°C. It safeguards CANH/CANL differential pairs in vehicle ECUs against ESD and surge transients.
For engineers reviewing the ESD2CANFD24DBZRQ1 datasheet, ESD2CANFD24DBZRQ1 pinout, ESD2CANFD24DBZRQ1 application, or ESD2CANFD24DBZRQ1 equivalent, key selection criteria include ISO 10605 ±20 kV contact/air-gap compliance, low dynamic resistance (0.45 Ω), bidirectional clamping behavior, and SOT-23 (DBZ) package compatibility with AOI inspection and high-density routing.
Technical Context
The ESD2CANFD24DBZRQ1 implements a dual-channel back-to-back TVS structure enabling symmetrical bidirectional clamping across both I/O pins relative to GND. Its design targets CAN-FD's 5 Mbps–10 Mbps data rates via 2.5 pF (typ) line capacitance and sub-37 V clamping under 3.5 A IEC 61000-4-5 surge conditions.
It operates within ±24 V reverse stand-off voltage and ±25.5 V DC breakdown, with ultra-low leakage (<50 nA at ±24 V) and dynamic resistance of 0.45 Ω-critical for minimizing voltage overshoot during fast ESD events while preserving signal integrity on differential CAN-FD buses.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ESD Rating (IEC 61000-4-2) | ±25 kV contact / ±25 kV air-gap - meets Level 4 automotive ESD immunity without external circuit derating |
| ESD Rating (ISO 10605) | ±20 kV contact / ±20 kV air-gap (330 pF, 330 Ω) - validated for automotive harness-level transient robustness |
| Clamping Voltage | 37 V at 3.5 A (8/20 µs) - limits downstream CAN transceiver stress below absolute maximum ratings |
| I/O Capacitance | 2.5 pF (typ) - enables clean signal integrity up to 10 Mbps CAN-FD data rate with minimal rise-time degradation |
| Dynamic Resistance | 0.45 Ω - ensures rapid voltage collapse during ESD onset, reducing energy dissipation time and peak voltage |
| Reverse Stand-off Voltage | ±24 V - withstands jump-start battery reversal and load-dump surges without conduction |
| AEC-Q101 Qualified | Qualified per AEC-Q101 Rev D - certified for under-hood and chassis-mounted automotive applications |
Pinout & Package
SOT-23 (DBZ) 3-pin leaded package (2.92 mm × 2.37 mm), optimized for automatic optical inspection (AOI) and high-volume surface-mount assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | I/O (CANH or CANL) | Bidirectional ESD clamp input - connects directly to one differential CAN bus line |
| 2 | I/O (CANL or CANH) | Bidirectional ESD clamp input - connects directly to the complementary differential CAN bus line |
| 3 | GND | Low-inductance return path for transient current - must be routed short and wide to minimize clamping voltage overshoot |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping architecture | Enables symmetric protection of differential CAN-FD signals without polarity constraints or external biasing |
| 2.5 pF typical I/O capacitance | Preserves signal edge fidelity for 10 Mbps CAN-FD operation while meeting stringent EMC requirements |
| 0.45 Ω dynamic resistance | Reduces clamping voltage overshoot during nanosecond-scale ESD events, enhancing system-level robustness |
| AEC-Q101 qualification | Validated for automotive safety-critical domains including body control modules and ADAS sensor interfaces |
| SOT-23 (DBZ) footprint | Standardized 3-pin leaded package compatible with legacy AOI systems and high-speed pick-and-place equipment |
Applications
| Automotive CAN-FD Node Protection | Body Control Module (BCM) Interface |
|---|---|
Use Scenario: ESD protection for CAN-FD transceivers in gateway ECUs handling multi-bus communication between powertrain, chassis, and infotainment networks. IC Role / Device Role / Timing Role: Passive bidirectional TVS clamp placed between connector and transceiver, absorbing ±20 kV ISO 10605 transients before they reach the PHY layer. Use Value: Prevents latch-up or permanent damage to CAN-FD transceivers during assembly handling or field service, maintaining >99.9% uptime in production vehicles. |
Use Scenario: Protecting CANH/CANL lines in door module ECUs exposed to repeated human-contact ESD events during window switch actuation or mirror adjustment. IC Role / Device Role / Timing Role: Low-capacitance ESD suppressor mounted adjacent to the connector, limiting voltage excursion to ≤37 V during 3.5 A surge events. Use Value: Eliminates intermittent CAN bus errors caused by ESD-induced transceiver reset, reducing warranty claims related to door module communication loss. |
| Roof Control Unit (RCU) | Climate Control Actuator Interface |
Use Scenario: Shielding sunroof motor driver CAN-FD interface from ESD generated by sliding glass panels and metal frame contact. IC Role / Device Role / Timing Role: Dual-channel TVS providing simultaneous protection to both CANH and CANL lines with matched clamping characteristics. Use Value: Maintains deterministic CAN-FD timing under ESD stress, preventing command loss during sunroof position calibration sequences. |
Use Scenario: Safeguarding HVAC actuator CAN-FD links in high-temperature cabin environments where thermal cycling accelerates leakage-related failure modes. IC Role / Device Role / Timing Role: AEC-Q101 qualified diode operating continuously at 150°C junction temperature with <50 nA leakage at ±24 V bias. Use Value: Ensures zero false-triggering of actuator position feedback due to thermally induced leakage current drift over 15-year vehicle lifetime. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ESD2CAN24DBZRQ1 | Higher ±30 kV IEC contact rating; 3 pF capacitance; 5.7 A surge capability | Better suited for legacy CAN (1 Mbps) and high-energy under-hood locations (e.g., engine control) | Select when higher ESD margin is required and 3 pF capacitance is acceptable for lower-speed networks |
| ESD2CANXL24DBZRQ1 | Lower ±20 kV ISO rating; 1.7 pF capacitance; 2.5 A surge capability | Optimized for CAN-XL (up to 20 Mbps) and space-constrained zones requiring minimal parasitic loading | Select when supporting next-gen CAN-XL physical layer and ultra-low capacitance is prioritized over surge current headroom |
Compared with ESD2CAN24DBZRQ1 and ESD2CANXL24DBZRQ1, the ESD2CANFD24DBZRQ1 delivers balanced performance for CAN-FD: sufficient ±20 kV ISO/±25 kV IEC immunity, 2.5 pF capacitance enabling full 10 Mbps operation, and 3.5 A surge rating appropriate for interior network nodes with moderate transient exposure.
Availability
ESD2CANFD24DBZRQ1 is available at Aetrix Electronics and suitable for automotive ECU design, CAN-FD network integration, and AEC-Q101-compliant production programs requiring stable component supply and long-term lifecycle support.
Supply support for ESD2CANFD24DBZRQ1 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, embedded processing, and connectivity solutions for automotive, industrial, and personal electronics markets.
The ESD2CANFD24DBZRQ1 belongs to TI's automotive-qualified ESD protection diode family, engineered specifically for high-speed in-vehicle networks including CAN-FD, with emphasis on low capacitance, precise clamping, and AEC-Q101 reliability.
FAQ
What is the primary function of the ESD2CANFD24DBZRQ1 in a CAN-FD system?
The ESD2CANFD24DBZRQ1 serves as a dual-channel bidirectional TVS diode that protects CANH and CANL differential signal lines from electrostatic discharge and surge transients. It clamps transient voltages to ≤37 V during 3.5 A events, ensuring CAN-FD transceivers remain undamaged while maintaining signal integrity up to 10 Mbps. Its ±24 V stand-off voltage also guards against jump-start battery reversal.
Does the ESD2CANFD24DBZRQ1 support full CAN-FD data rates up to 10 Mbps?
Yes, the ESD2CANFD24DBZRQ1 supports CAN-FD data rates up to 10 Mbps due to its 2.5 pF typical I/O capacitance and low dynamic resistance (0.45 Ω). This capacitance minimizes signal distortion and rise-time degradation on differential pairs, and the device is explicitly characterized and validated for CAN-FD compliance in TI's SLVSFW5D datasheet.
What are the exact ESD protection ratings certified for the ESD2CANFD24DBZRQ1?
The ESD2CANFD24DBZRQ1 is certified to ±25 kV contact and ±25 kV air-gap per IEC 61000-4-2, and ±20 kV contact and ±20 kV air-gap per ISO 10605 (330 pF, 330 Ω). These values are measured on both I/O pins and confirmed in the official Texas Instruments production datasheet revision March 2026.
Is the ESD2CANFD24DBZRQ1 qualified for automotive under-hood applications?
Yes, the ESD2CANFD24DBZRQ1 is AEC-Q101 qualified and rated for operation from –55°C to +150°C, making it suitable for under-hood applications such as engine control units and transmission control modules. Its SOT-23 (DBZ) package and robust thermal metrics (RθJA = 316.3°C/W) support reliable performance in high-temperature environments.
How does the pin configuration of the ESD2CANFD24DBZRQ1 simplify PCB layout for CAN-FD designs?
The ESD2CANFD24DBZRQ1 uses a 3-pin SOT-23 (DBZ) package with Pin 1 and Pin 2 as symmetrical I/O terminals for CANH and CANL, and Pin 3 as dedicated GND. This allows direct in-line placement between connector and transceiver with minimal trace length, reducing loop inductance and improving ESD suppression efficiency-verified in TI's layout guidelines and Figure 9-1 routing example.
ESD2CANFD24DBZRQ1 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):
- 3.5A (8/20µs)
- Power - Peak Pulse:
- 133W
- Power Line Protection:
- No
- Applications:
- CAN
- Capacitance @ Frequency:
- 2.5pF @ 1MHz
- Operating Temperature:
- -55°C ~ 150°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
ESD2CANFD24DBZRQ1 FAQ
1.How can I place an order for ESD2CANFD24DBZRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for ESD2CANFD24DBZRQ1 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 ESD2CANFD24DBZRQ1 reliable?
The price and inventory of ESD2CANFD24DBZRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ESD2CANFD24DBZRQ1 is usually 5 days.
3.What payment methods are accepted for ESD2CANFD24DBZRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ESD2CANFD24DBZRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ESD2CANFD24DBZRQ1?
ESD2CANFD24DBZRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ESD2CANFD24DBZRQ1 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 ESD2CANFD24DBZRQ1?
For technical support, including ESD2CANFD24DBZRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ESD2CANFD24DBZRQ1 requirements.
6.How does Aetrix verify that ESD2CANFD24DBZRQ1 is sourced from the original manufacturer or authorized distributors?
All ESD2CANFD24DBZRQ1 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 ESD2CANFD24DBZRQ1 meets industry standards.
7.What is the process for return or replacement of ESD2CANFD24DBZRQ1?
All ESD2CANFD24DBZRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with ESD2CANFD24DBZRQ1, 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 ESD2CANFD24DBZRQ1 part is unused and in its original packaging.
Return procedure for ESD2CANFD24DBZRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ESD2CANFD24DBZRQ1 Tags
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ESD9B5.0ST5G
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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ESD5Z5.0T1G
onsemi
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Diodes Incorporated
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D12V0L1B2LP-7B
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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