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Vishay General Semiconductor - Diodes Division SMB8J10CAHE3/52
- Part No.:
- SMB8J10CAHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB8J10CAHE3/52.pdf
- Description:
- TVS DIODE 10VWM 17VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,282
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Product details
Overview
SMB8J10CAHE3/52 from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for high-energy surge protection on signal and power lines. It features 10 V stand-off voltage (VWM), 17.0 V maximum clamping voltage (VC) at 10 A peak pulse current, and 800 W peak pulse power (10/1000 µs waveform), with AEC-Q101 qualification for automotive electronics.
For engineers reviewing the SMB8J10CAHE3/52 datasheet, SMB8J10CAHE3/52 pinout, SMB8J10CAHE3/52 application, or SMB8J10CAHE3/52 equivalent, key selection criteria include bidirectional clamping behavior, low leakage (<1.0 µA at 10 V), thermal resistance (RθJA = 72 °C/W), and compliance with automotive reliability standards.
Technical Context
This device operates as a voltage-clamped crowbar during transients, leveraging an avalanche breakdown junction to divert surge energy away from protected circuitry. Its bidirectional architecture enables symmetric suppression of both positive and negative polarity surges without polarity sensitivity, making it suitable for AC-coupled or floating signal paths.
The SMB8J10CAHE3/52 uses a glass-passivated silicon junction for stable breakdown characteristics and low incremental surge resistance. It meets J-STD-020 MSL Level 1 and supports reflow soldering up to 260 °C peak, with matte tin-plated leads compliant to JESD 22-B102 and J-STD-002.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 10 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR min/max | 11.1 V / 12.3 V - Breakdown occurs within this range at 1 mA test current, defining turn-on threshold |
| VC @ IPPM | 17.0 V - Clamps transients to ≤17.0 V when subjected to 10 A 10/1000 µs surge |
| PPPM | 800 W - Sustains 800 W peak pulse power under standardized 10/1000 µs waveform |
| ID @ VWM | <1.0 µA - Ultra-low reverse leakage ensures minimal standby power loss and signal integrity |
| TJ max | +150 °C - Enables operation in under-hood automotive environments and industrial enclosures |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional - no polarity marking; symmetrical two-terminal construction with cathode band omitted per bidirectional configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Surge current path | Either terminal accepts transient current in either direction; no fixed polarity required |
| Case (exposed pad not present) | Thermal conduction path | Leads serve as primary heat dissipation route; RθJL = 20 °C/W to PCB copper |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC signals, differential buses, or ungrounded interfaces without polarity concerns |
| AEC-Q101 qualification | Validates robustness for automotive ECUs, ADAS sensors, and infotainment systems requiring long-term field reliability |
| Low clamping ratio (VC/VWM = 1.7) | Minimizes overvoltage stress on downstream ICs compared to higher-ratio TVS devices |
| MSL Level 1 rating | Supports standard SMT reflow without moisture-related popcorning or delamination risks |
| Glass-passivated junction | Ensures stable VBR over time and temperature, with reduced parameter drift versus epoxy-passivated alternatives |
Applications
| Automotive Sensor Interface Protection | Industrial CAN Bus Line Protection |
|---|---|
Use Scenario: Protecting analog sensor outputs (e.g., pressure, temperature) in engine control modules from load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Voltage-clamping TVS placed directly at connector entry point to shunt surge energy before reaching ADC input or signal conditioner. Use Value: Limits transient voltage to ≤17.0 V, preserving 12-bit ADC accuracy and preventing latch-up in microcontroller I/O cells. | Use Scenario: Safeguarding CANH/CANL differential pair in factory automation gateways exposed to motor drive switching noise. IC Role / Device Role / Timing Role: Bidirectional TVS mounted across CAN bus lines to clamp ±25 kV ESD (IEC 61000-4-2) and 40 A surge (IEC 61000-4-5). Use Value: Maintains signal integrity below CAN physical layer thresholds while surviving repeated 800 W transients without degradation. |
| Consumer USB Type-C Port Protection | Telecom DSL Line Interface |
Use Scenario: Guarding VBUS and CC lines in automotive USB hubs against hot-plug surges and cable-induced transients. IC Role / Device Role / Timing Role: Standoff-rated TVS (10 V) placed upstream of USB power switch to prevent false overvoltage shutdown during 100 ns fast transients. Use Value: Sub-1.0 µA leakage avoids battery drain; 17.0 V clamping prevents damage to 5 V tolerant USB controller I/O. | Use Scenario: Protecting ADSL/VDSL line drivers from lightning-induced surges on outdoor telecom drops. IC Role / Device Role / Timing Role: Bidirectional TVS installed between transformer secondary and line driver IC to absorb common-mode surges up to 6 kV. Use Value: Withstands 800 W peak power without failure, enabling compliance with GR-1089-CORE surge immunity requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ10CAHE3/52 | 1000 W PPPM (unidirectional variant rated for 1000 W; SMB8J10CAHE3/52 is bidirectional 800 W) | Unidirectional only - unsuitable for AC or floating lines without external biasing | Select SMBJ10CAHE3/52 only if polarity is fixed and higher surge margin is required |
| SMCJ10CAHE3/52 | Larger SMC (DO-214AB) package; 1500 W PPPM; RθJA = 35 °C/W vs. 72 °C/W | Higher power handling but 3× footprint area; requires larger PCB real estate and thermal pads | Choose SMCJ10CAHE3/52 when system-level surge tests exceed 800 W or ambient temperatures exceed 105 °C |
Compared with SMBJ10CAHE3/52 and SMCJ10CAHE3/52, the SMB8J10CAHE3/52 delivers optimal balance of automotive qualification, compact SMB footprint, and bidirectional capability-making it preferred for space-constrained, polarity-agnostic protection where 800 W surge capacity suffices.
Availability
SMB8J10CAHE3/52 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial CAN bus nodes, consumer USB Type-C ports, and telecom DSL line protection requiring stable component supply and AEC-Q101 traceability.
Supply support for SMB8J10CAHE3/52 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
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, MOSFETs, optoelectronics, and passive components with emphasis on reliability and application-specific performance.
The SMB8JxxCA series belongs to Vishay's TRANSZORB® TVS portfolio, engineered specifically for high-power-density, AEC-Q101-compliant transient suppression in automotive and industrial environments where bidirectional symmetry and low clamping voltage are critical.
FAQ
What is the clamping voltage of SMB8J10CAHE3/52 at its rated peak pulse current?
The SMB8J10CAHE3/52 clamps to a maximum of 17.0 V when subjected to its specified 10 A peak pulse current (IPPM) under the 10/1000 µs waveform condition. This value is measured per ANSI/IEEE C62.35 and guarantees that protected circuitry sees no more than 17.0 V during surge events, preserving downstream IC functionality and signal integrity.
Is SMB8J10CAHE3/52 suitable for automotive applications?
Yes, SMB8J10CAHE3/52 is AEC-Q101 qualified and manufactured with RoHS-compliant, halogen-free materials. Its qualification covers temperature cycling, high-temperature reverse bias, and ESD testing per automotive requirements. The HE3 suffix explicitly denotes AEC-Q101 compliance, making SMB8J10CAHE3/52 appropriate for engine control units, body electronics, and ADAS sensor modules.
How does SMB8J10CAHE3/52 differ from unidirectional SMBJ10CAHE3/52?
SMB8J10CAHE3/52 is bidirectional with symmetrical clamping for both polarities and 800 W peak pulse power, while SMBJ10CAHE3/52 is unidirectional with 1000 W rating. The SMB8J10CAHE3/52 has no polarity marking and can protect AC-coupled or floating lines without external biasing-unlike SMBJ10CAHE3/52, which requires correct cathode orientation relative to ground.
What is the maximum reverse leakage current for SMB8J10CAHE3/52 at its stand-off voltage?
At its 10 V stand-off voltage (VWM), the SMB8J10CAHE3/52 exhibits a maximum reverse leakage current of 1.0 µA at 25 °C. This ultra-low leakage minimizes power loss in battery-powered systems and prevents signal distortion in high-impedance analog paths such as sensor front-ends or precision reference circuits.
Does SMB8J10CAHE3/52 require special PCB layout considerations?
Yes - SMB8J10CAHE3/52 should be mounted on minimum 0.2" x 0.2" (5.0 mm x 5.0 mm) copper pads per terminal to achieve rated thermal performance (RθJA = 72 °C/W). Short, direct traces to protected nodes and low-inductance grounding reduce clamping overshoot. Avoid routing sensitive signals near the TVS body to prevent coupling of transient energy into adjacent nets.
SMB8J10CAHE3/52 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 10V
- Voltage - Breakdown (Min):
- 11.1V
- Voltage - Clamping (Max) @ Ipp:
- 17V
- Current - Peak Pulse (10/1000µs):
- 47.1A
- Power - Peak Pulse:
- 800W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
SMB8J10CAHE3/52 FAQ
1.How can I place an order for SMB8J10CAHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB8J10CAHE3/52 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 SMB8J10CAHE3/52 reliable?
The price and inventory of SMB8J10CAHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMB8J10CAHE3/52 is usually 5 days.
3.What payment methods are accepted for SMB8J10CAHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB8J10CAHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB8J10CAHE3/52?
SMB8J10CAHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB8J10CAHE3/52 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 SMB8J10CAHE3/52?
For technical support, including SMB8J10CAHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB8J10CAHE3/52 requirements.
6.How does Aetrix verify that SMB8J10CAHE3/52 is sourced from the original manufacturer or authorized distributors?
All SMB8J10CAHE3/52 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 SMB8J10CAHE3/52 meets industry standards.
7.What is the process for return or replacement of SMB8J10CAHE3/52?
All SMB8J10CAHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMB8J10CAHE3/52, 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 SMB8J10CAHE3/52 part is unused and in its original packaging.
Return procedure for SMB8J10CAHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB8J10CAHE3/52 Tags
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