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Texas Instruments ESD752DBZR
- Part No.:
- ESD752DBZR
- Manufacturer:
- Texas Instruments
- Category:
- TVS Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
ESD752DBZR.pdf
- Description:
- DUAL 3.2-PF, 24-V, 30-KV ESD PRO
- Quantity:
- Payment:
- Shipping:
Inventory:6,063
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Product details
Overview
ESD752DBZR from Texas Instruments is a bidirectional 2-channel ESD protection diode designed for CANH/CANL line protection in automotive and industrial in-vehicle networks. It delivers ±30kV IEC 61000-4-2 Level 4 contact/air discharge protection, 24V working voltage (VRWM), 37V clamping voltage (VCLAMP at max Ipp), and 3pF typical I/O capacitance - enabling robust transient suppression while supporting up to 20Mbps CAN FD and CAN-XL data rates.
For engineers reviewing the ESD752DBZR datasheet, ESD752DBZR pinout, ESD752DBZR application, or ESD752DBZR equivalent, this device is selected for high-reliability differential bus protection where low capacitance, fast clamping response, and compliance with IEC 61000-4-2/4-5 are mandatory - especially in CAN transceiver front-end designs requiring minimal signal distortion and guaranteed system-level ESD immunity.
Technical Context
The ESD752DBZR implements a dual-channel TVS architecture with symmetrical bidirectional breakdown (±25.5V to ±35.5V) and low dynamic resistance (0.35Ω typical), enabling rapid energy diversion during ESD events while maintaining sub-37V clamping across both channels under 8/20µs surge conditions. Its design targets direct integration into CAN physical layer interfaces without compromising signal integrity.
It operates over –55°C to +150°C, supports ±24V DC operating range, and features ultra-low leakage (<50nA at ±24V), ensuring compatibility with battery-connected automotive subsystems and industrial 4–20mA circuits. The SOT-23 (DBZ) package provides standardized 3-pin layout optimized for compact PCB placement near connectors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ESD Rating | ±30kV contact & air discharge per IEC 61000-4-2 Level 4 - ensures full-system immunity against human-body model ESD events. |
| Clamping Voltage | 37V at max Ipp (IEC 61000-4-5 8/20µs) - protects downstream CAN transceivers rated ≤58V absolute maximum. |
| Working Voltage | ±24V VRWM - withstands automotive battery reverse-connection and jump-start transients without conduction. |
| I/O Capacitance | 3pF typical per channel - enables clean signal transmission up to 20Mbps in CAN FD/CAN-XL applications. |
| Dynamic Resistance | 0.35Ω typical - minimizes voltage overshoot during fast ESD pulses, reducing stress on protected ICs. |
| Leakage Current | ≤50nA at ±24V - prevents loading of high-impedance analog or digital bus lines in standby operation. |
| Operating Temp | –55°C to +150°C - qualified for under-hood automotive and harsh industrial environments. |
Pinout & Package
SOT-23 (DBZ) 3-pin package: 2.92mm × 1.30mm body, 1.12mm max height, JEDEC TO-236 compliant, RoHS-compliant NIPDAU lead finish, MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | I/O (CANH) | ESD-protected input/output terminal for CAN High line; bidirectionally clamps transients to GND. |
| 2 | I/O (CANL) | ESD-protected input/output terminal for CAN Low line; matched channel with Pin 1 for differential protection. |
| 3 | GND | Low-inductance ground return path; must be routed short/thick to minimize clamping voltage rise during surge events. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional dual-channel protection | Single-component solution for full differential CANH/CANL line protection - eliminates need for discrete diode pairs. |
| Low 3pF line capacitance | Preserves signal edge integrity and timing margins in high-speed CAN FD (5Mbps) and CAN-XL (20Mbps) systems. |
| ±30kV IEC 61000-4-2 compliance | Guarantees pass/fail reliability in automotive EMC validation tests without additional external filtering. |
| 24V working voltage (VRWM) | Survives 12V/24V vehicle battery reverse polarity and load-dump surges up to ±24V DC without leakage or degradation. |
| 37V clamping at max surge current | Keeps voltage seen by CAN transceiver within safe operating area during worst-case 8/20µs transients per IEC 61000-4-5. |
Applications
| Automotive CAN Bus Protection | Industrial CANopen Networks |
|---|---|
Use Scenario: Protecting CAN transceivers in engine control units (ECUs), body control modules (BCMs), and ADAS domain controllers exposed to ESD during service or assembly. IC Role / Device Role / Timing Role: Front-end transient suppressor placed between connector and CAN transceiver, clamping ESD before it reaches sensitive PHY circuitry. Use Value: Enables compliance with ISO 10605 and OEM-specific ESD requirements while preserving 20Mbps CAN-XL data throughput. |
Use Scenario: Securing DeviceNet and CANopen nodes in factory automation PLCs, motor drives, and distributed I/O systems subject to field wiring ESD. IC Role / Device Role / Timing Role: Dual-channel ESD guard for differential CANH/CANL signals in CiA 301/302-2-compliant devices. Use Value: Maintains <3pF channel capacitance to avoid CANopen bit-timing violations and supports robust operation in EN 50325-4 environments. |
| 4–20mA Loop Interface Protection | ADC Input Surge Suppression |
Use Scenario: Safeguarding analog sensor inputs and transmitter outputs in process control systems where loop-powered 4–20mA signals interface with field wiring. IC Role / Device Role / Timing Role: Bidirectional overvoltage clamp on current-loop signal lines, referenced to system ground. Use Value: Prevents latch-up or damage to precision op-amps and current-sense amplifiers during cable-handling ESD events. |
Use Scenario: Protecting high-resolution ADC inputs (e.g., SAR or sigma-delta) in data acquisition modules connected to unshielded sensors or long traces. IC Role / Device Role / Timing Role: Low-capacitance ESD shunt placed directly at ADC input pins to limit transient-induced sampling errors. Use Value: Limits added capacitance to 3pF to avoid degrading ADC effective resolution and settling time in 16+ bit systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ESD752DCKR | Same electrical specs; SC-70 (DCK) package - 2.00mm × 1.25mm, MSL Level-3, higher thermal resistance (283°C/W RθJA). | Better suited for space-constrained layouts where SOT-23 footprint is too large; lower power handling due to reduced thermal mass. | Select when board real estate is critical and reflow profile accommodates MSL Level-3 moisture sensitivity. |
| ESD752DXAR | Same electrical specs; DFN1110 (DXA) package - 1.1mm × 1.0mm, no leads, wettable flanks, RθJA = 284.2°C/W. | Optimized for automated optical inspection (AOI) and high-density routing; requires exposed pad soldering and tighter stencil design. | Choose for next-gen automotive modules demanding miniaturization and IPC Class 3 assembly compliance. |
Compared with ESD752DCKR and ESD752DXAR, the ESD752DBZR offers the highest surge current rating (5.7A vs. 4.7A for DXA), lowest thermal resistance among SOT-23 variants, and broadest reflow compatibility (MSL Level-1), making it the preferred choice for production-grade automotive CAN modules requiring proven manufacturability and thermal margin.
Availability
ESD752DBZR is available at Aetrix Electronics and suitable for automotive CAN bus protection, industrial CANopen networks, and 4–20mA loop interface applications requiring stable component supply, long-term lifecycle support, and AEC-Q200-aligned reliability.
Supply support for ESD752DBZR 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 with emphasis on automotive, industrial, and power management applications.
The ESD752DBZR belongs to TI's ESD protection diode product line, engineered specifically for high-speed differential bus interfaces in safety-critical automotive and industrial systems where low capacitance, precise clamping, and IEC/ISO compliance are non-negotiable.
FAQ
What is the maximum clamping voltage of the ESD752DBZR under IEC 61000-4-5 surge conditions?
The ESD752DBZR exhibits a clamping voltage of 37V when stressed with the maximum specified Ipp current under IEC 61000-4-5 8/20µs waveform conditions. This value is measured across each I/O channel relative to GND and ensures compatibility with CAN transceivers having ≤58V absolute maximum ratings. The 37V clamping level is confirmed across all packages including the ESD752DBZR SOT-23 variant.
Does the ESD752DBZR support CAN FD and CAN-XL data rates?
Yes, the ESD752DBZR supports CAN FD and CAN-XL protocols up to 20Mbps due to its 3pF typical I/O capacitance per channel and low dynamic resistance (0.35Ω). These parameters minimize signal distortion and maintain timing margins required for high-speed differential communication. The ESD752DBZR datasheet explicitly confirms suitability for CAN, CANFD, CAN SiC, and CAN-XL applications.
What is the pin configuration of the ESD752DBZR in the SOT-23 (DBZ) package?
The ESD752DBZR in SOT-23 (DBZ) package has three pins: Pin 1 connects to CANH (I/O), Pin 2 connects to CANL (I/O), and Pin 3 is GND. This configuration is identical across DBZ, DCK, and DXA packages and is validated in the official TI datasheet SLVSJ54A. The device is bidirectional, so either I/O pin can serve as input or output depending on transient polarity.
Is the ESD752DBZR compliant with automotive ESD standards such as ISO 10605?
The ESD752DBZR is tested to IEC 61000-4-2 Level 4 (±30kV contact/air), which forms the basis for ISO 10605 test methodology. While ISO 10605 specifies different network impedance and pulse shapes, the ESD752DBZR's clamping performance, low capacitance, and robust surge handling make it widely adopted in automotive CAN designs meeting ISO 10605 requirements. TI documentation confirms its use in in-vehicle networks.
What is the operating temperature range for the ESD752DBZR?
The ESD752DBZR is rated for an operating free-air temperature range of –55°C to +150°C, fully qualifying it for under-hood automotive applications and industrial environments with extreme thermal cycling. This range is specified in Section 5.1 Absolute Maximum Ratings of the TI datasheet SLVSJ54A and applies identically to the ESD752DBZR variant.
ESD752DBZR 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, USB
- Capacitance @ Frequency:
- 3pF @ 1MHz
- Operating Temperature:
- -55°C ~ 150°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
ESD752DBZR FAQ
1.How can I place an order for ESD752DBZR through Aetrix?
Please submit a Request for Quotation (RFQ) for ESD752DBZR 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 ESD752DBZR reliable?
The price and inventory of ESD752DBZR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ESD752DBZR is usually 5 days.
3.What payment methods are accepted for ESD752DBZR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ESD752DBZR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ESD752DBZR?
ESD752DBZR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ESD752DBZR 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 ESD752DBZR?
For technical support, including ESD752DBZR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ESD752DBZR requirements.
6.How does Aetrix verify that ESD752DBZR is sourced from the original manufacturer or authorized distributors?
All ESD752DBZR 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 ESD752DBZR meets industry standards.
7.What is the process for return or replacement of ESD752DBZR?
All ESD752DBZR units undergo pre-shipment inspection (PSI). If there is an issue with ESD752DBZR, 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 ESD752DBZR part is unused and in its original packaging.
Return procedure for ESD752DBZR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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