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Vishay General Semiconductor - Diodes Division SMB8J10CAHE3/5B
- Part No.:
- SMB8J10CAHE3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB8J10CAHE3/5B.pdf
- Description:
- TVS DIODE 10VWM 17VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,821
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Product details
Overview
SMB8J10CAHE3/5B 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 a 10 V stand-off voltage (VWM), 11.1–12.3 V breakdown voltage (VBR), 17.0 V clamping voltage (VC) at 10 A peak pulse current, and 800 W peak pulse power (PPPM) with 10/1000 µs waveform - deployed in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the SMB8J10CAHE3/5B datasheet, SMB8J10CAHE3/5B pinout, SMB8J10CAHE3/5B application, or SMB8J10CAHE3/5B equivalent, key selection criteria include AEC-Q101 qualification, bidirectional clamping behavior, low clamping ratio (VC/VWM = 1.7), and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This device operates as a voltage-clamped shunt protector: under normal conditions it presents high impedance (>1 MΩ leakage at 10 V), but switches to low-impedance conduction within <1 ns when transients exceed VBR. Its glass-passivated junction ensures stable breakdown and low incremental surge resistance.
Rated for -55 °C to +150 °C junction temperature, it leverages thermal resistance RθJL = 20 °C/W to sustain repetitive surges when mounted per recommended pad layout. The HE3 suffix confirms RoHS-compliant, AEC-Q101-qualified construction for automotive-grade reliability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 10 V - maximum continuous reverse operating voltage before significant leakage; defines safe working margin for 12 V automotive systems. |
| VBR min/max | 11.1 V / 12.3 V at 1.0 mA - tight breakdown tolerance ensures predictable turn-on across temperature and unit variation. |
| VC @ IPPM | 17.0 V at 10 A - clamping voltage limits downstream IC stress during 10/1000 µs surge events. |
| PPPM | 800 W - peak power handling capacity with 10/1000 µs waveform; enables protection against ISO 7637-2 Pulse 1 & 2a. |
| ID @ VWM | 1.0 µA - ultra-low reverse leakage preserves signal integrity and battery life in always-on circuits. |
| TJ max | +150 °C - supports under-hood automotive environments without derating at full power. |
| Package | SMB (DO-214AA) - surface-mount footprint compatible with IPC-7351B standard; 0.220" × 0.130" body size. |
Pinout & Package
Two-terminal bidirectional device in SMB (DO-214AA) package; no polarity marking required. Terminals are matte tin-plated leads, solderable per J-STD-002 and JESD 22-B102, qualified to JESD 201 Class 2 whisker test.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | AC-coupled transient path | Either terminal serves as input/output; bidirectional clamping protects both positive and negative transients equally. |
| Case (body) | Thermal and mechanical interface | Non-electrical; transfers heat to PCB copper pads (min. 5.0 mm × 5.0 mm per terminal) to maintain RθJA ≤ 72 °C/W. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, ADAS sensors, and infotainment power rails. |
| Glass passivated junction | Ensures long-term stability of VBR and low leakage drift over 15-year service life in harsh thermal cycles. |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without preconditioning or dry-pack requirements. |
| Low clamping ratio (VC/VWM = 1.7) | Minimizes overvoltage exposure to protected ICs compared to alternatives with ratios >2.0. |
| UL 94 V-0 molding compound | Meets flammability safety standards for enclosed automotive and industrial enclosures. |
Applications
| Automotive Sensor Interface | Industrial Digital I/O Protection |
|---|---|
Use Scenario: Protecting LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load dump and ESD in vehicle cabins. IC Role / Device Role / Timing Role: Bidirectional shunt clamp placed between signal line and ground, responding within <1 ns to transients exceeding 11.1 V. Use Value: Maintains signal fidelity below 10 V while limiting fault voltage to ≤17.0 V - preserving ADC input range and preventing latch-up in connected microcontrollers. |
Use Scenario: Safeguarding PLC digital input modules from inductive kickback when switching solenoids or relays in factory automation. IC Role / Device Role / Timing Role: Parallel-connected TVS absorbing 800 W surge energy (10/1000 µs) on 24 V DC input lines. Use Value: Enables robust operation without external series impedance or timing delays - unlike varistors or MOVs, with no degradation after repeated surges. |
| USB Port ESD Protection | DC Power Rail Clamping |
Use Scenario: Secondary-level ESD protection on USB 2.0 D+/D- lines in automotive infotainment head units. IC Role / Device Role / Timing Role: Low-capacitance (<100 pF typical) bidirectional clamp referenced to ground, placed adjacent to connector. Use Value: Passes IEC 61000-4-2 ±15 kV contact discharge without signal distortion or bit errors due to sub-17 V clamping ceiling. |
Use Scenario: Overvoltage suppression on 12 V auxiliary power rails feeding camera modules or radar processors. IC Role / Device Role / Timing Role: Standoff-rated TVS that remains non-conductive until transients exceed 10 V, then clamps to 17.0 V. Use Value: Prevents brownout or reset of downstream PMICs by limiting rail excursion duration and amplitude - validated per ISO 16750-2. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ10CA-E3/52 | Same SMB package and 10 V VWM, but unqualified for AEC-Q101; lower PPPM (600 W vs. 800 W). | Limited to commercial-grade industrial equipment; not approved for automotive ECUs or ADAS subsystems. | Select only if AEC-Q101 compliance is unnecessary and cost sensitivity outweighs surge margin. |
| SMCJ10CAHE3_A/H | Higher-power SMC (DO-214AB) package; same VWM/VBR/VC specs but rated for 1500 W PPPM. | Requires larger PCB area (0.285" × 0.235"); suitable where higher surge immunity (e.g., ISO 7637-2 Pulse 5a) is mandated. | Choose when system-level testing requires >800 W surge handling and board space permits larger footprint. |
Compared with SMBJ10CA-E3/52 and SMCJ10CAHE3_A/H, SMB8J10CAHE3/5B uniquely balances AEC-Q101 qualification, 800 W surge capability, and SMB footprint - making it optimal for space-constrained automotive sensor nodes requiring production-grade reliability.
Availability
SMB8J10CAHE3/5B is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial digital I/O protection, USB port ESD hardening, and DC power rail clamping requiring stable component supply across multi-year production cycles.
Supply support for SMB8J10CAHE3/5B 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, rectifiers, MOSFETs, and protection devices with emphasis on reliability, power density, and automotive qualification.
The SMB8JxxCA family delivers high-power-density TVS solutions optimized for AEC-Q101-compliant automotive electronics and ruggedized industrial controls where compact size and repeatable clamping performance are critical.
FAQ
What is the clamping voltage of SMB8J10CAHE3/5B at its rated peak pulse current?
The SMB8J10CAHE3/5B has a maximum clamping voltage (VC) of 17.0 V when subjected to its specified peak pulse current of 10 A with a 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and ensures predictable overvoltage limiting for protected circuitry - a key parameter verified in every production lot of SMB8J10CAHE3/5B.
Is SMB8J10CAHE3/5B suitable for automotive applications?
Yes, SMB8J10CAHE3/5B is AEC-Q101 qualified and carries the HE3 suffix denoting RoHS-compliant, automotive-grade construction. It meets MSL Level 1, operates from -55 °C to +150 °C, and is widely deployed in automotive sensor units, infotainment systems, and body control modules - all validated requirements for SMB8J10CAHE3/5B.
What does the "5B" in SMB8J10CAHE3/5B indicate?
The "5B" in SMB8J10CAHE3/5B specifies the packaging format: 13-inch diameter plastic tape and reel containing 3200 units. This differs from "52", which denotes 7-inch reels of 750 units. Both formats use the same SMB8J10CAHE3 die and meet identical electrical and reliability specifications - the "5B" designation applies exclusively to SMB8J10CAHE3/5B's shipping configuration.
How does SMB8J10CAHE3/5B differ from unidirectional SMB10J10A variants?
SMB8J10CAHE3/5B is bidirectional with symmetrical clamping for AC or dual-polarity transients, whereas SMB10J10A is unidirectional and conducts only in reverse bias. SMB8J10CAHE3/5B has lower PPPM (800 W vs. 1000 W) and different IPPM (10 A vs. 5.0 A), reflecting its bidirectional architecture - these distinctions are fully specified in the SMB8J10CAHE3/5B datasheet.
What is the thermal resistance of SMB8J10CAHE3/5B, and how does it affect layout?
SMB8J10CAHE3/5B has a typical junction-to-lead thermal resistance (RθJL) of 20 °C/W. To maintain this rating, the PCB must use minimum 5.0 mm × 5.0 mm copper pads per terminal - as defined in the SMB8J10CAHE3/5B mechanical drawings. Inadequate copper area increases thermal impedance, reducing surge endurance and risking thermal runaway during repetitive events.
SMB8J10CAHE3/5B 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)
SMB8J10CAHE3/5B FAQ
1.How can I place an order for SMB8J10CAHE3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB8J10CAHE3/5B 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 SMB8J10CAHE3/5B reliable?
The price and inventory of SMB8J10CAHE3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMB8J10CAHE3/5B is usually 5 days.
3.What payment methods are accepted for SMB8J10CAHE3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB8J10CAHE3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB8J10CAHE3/5B?
SMB8J10CAHE3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB8J10CAHE3/5B 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 SMB8J10CAHE3/5B?
For technical support, including SMB8J10CAHE3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB8J10CAHE3/5B requirements.
6.How does Aetrix verify that SMB8J10CAHE3/5B is sourced from the original manufacturer or authorized distributors?
All SMB8J10CAHE3/5B 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 SMB8J10CAHE3/5B meets industry standards.
7.What is the process for return or replacement of SMB8J10CAHE3/5B?
All SMB8J10CAHE3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMB8J10CAHE3/5B, 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 SMB8J10CAHE3/5B part is unused and in its original packaging.
Return procedure for SMB8J10CAHE3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB8J10CAHE3/5B Tags
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