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Vishay General Semiconductor - Diodes Division SMB8J10CAHM3/I
- Part No.:
- SMB8J10CAHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB8J10CAHM3/I.pdf
- Description:
- TVS DIODE 10VWM 17VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,810
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Product details
Overview
SMB8J10CAHM3/I 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), 17.0 V maximum clamping voltage (VC) at 10 A peak pulse current (IPPM), and 800 W peak pulse power (PPPM) with 10/1000 µs waveform - deployed in automotive sensor interfaces, industrial I/O protection, and telecom line conditioning.
For engineers reviewing the SMB8J10CAHM3/I datasheet, SMB8J10CAHM3/I pinout, SMB8J10CAHM3/I application, or SMB8J10CAHM3/I equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, low clamping ratio (VC/VWM = 1.7), MSL Level 1 moisture sensitivity, and halogen-free RoHS compliance per HM3 suffix.
Technical Context
This device operates as a voltage-clamped crowbar during transients, leveraging an avalanche breakdown junction to divert surge energy away from downstream ICs. Its bidirectional symmetry enables protection of AC-coupled or differential signal paths without polarity constraints, and its glass-passivated chip ensures stable leakage (<1.0 µA at VWM) and repeatable breakdown behavior across temperature.
The SMB8J10CAHM3/I is rated for -55 °C to +150 °C operating junction temperature, with thermal resistance RθJA = 72 °C/W and RθJL = 20 °C/W - enabling reliable operation under sustained surge stress when mounted on minimum recommended 5.0 mm × 5.0 mm copper pads per terminal. It meets ANSI/IEEE C62.35 surge standards and is qualified to AEC-Q101 for automotive under-hood use.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 10 V - maximum continuous reverse working voltage before clamping initiates |
| VBR min/max | 11.1 V / 12.3 V at 1.0 mA - tight breakdown tolerance ensures predictable turn-on threshold |
| VC @ IPPM | 17.0 V at 10 A - low clamping voltage limits stress on protected circuitry |
| PPPM | 800 W (10/1000 µs) - sustains high-energy surges common in automotive load-dump or ESD events |
| ID @ VWM | ≤1.0 µA - ultra-low leakage preserves signal integrity in high-impedance sensor lines |
| TJ max | +150 °C - supports under-hood automotive placement without derating |
| MSL Level | Level 1 (260 °C peak reflow) - compatible with standard SMT assembly processes |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional - no polarity marking; symmetrical terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (1) | Surge current input/output path | Both terminals are functionally identical; bidirectional conduction allows placement without orientation check |
| Anode/Cathode (2) | Surge current return path | Completes low-inductance shunt path to ground or rail; requires symmetric PCB pad layout (5.0 mm × 5.0 mm copper per terminal) |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, ADAS sensors, and infotainment power rails |
| Halogen-free & RoHS-compliant (HM3) | Meets JESD201 Class 2 whisker resistance and global environmental compliance mandates |
| Low clamping ratio (VC/VWM = 1.7) | Minimizes overvoltage exposure to protected ICs during 10/1000 µs transients |
| Fast response time (<1 ps) | Clamps before transient energy couples into sensitive analog or digital inputs |
| MSL Level 1 rating | Enables single-pass reflow without baking or special handling in high-volume manufacturing |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/FlexRay transceivers and analog sensor front-ends (e.g., pressure, temperature) from ISO 7637-2 load dump and ESD pulses. IC Role / Device Role / Timing Role: Bidirectional TVS placed between signal line and chassis ground to clamp ±200 V transients within nanoseconds. Use Value: Prevents latch-up or gate oxide damage in 3.3 V/5 V interface ICs by limiting clamped voltage to ≤17.0 V at 10 A surge. | Use Scenario: Shielding 24 V DC digital input modules in programmable logic controllers from inductive kickback and lightning-induced surges. IC Role / Device Role / Timing Role: Parallel-connected TVS on each input channel to absorb 800 W surges without degradation over >10,000 cycles. Use Value: Eliminates need for external series impedance or RC filtering while maintaining <1.0 µA leakage at 24 V nominal. |
| Telecom Line Interface | Consumer USB Port Protection |
Use Scenario: Safeguarding RS-485 transceivers in base station backhaul links exposed to induced surges from nearby power lines. IC Role / Device Role / Timing Role: Differential-mode TVS across A/B bus lines to suppress common-mode transients up to ±1 kV. Use Value: Maintains signal integrity with <10 pF junction capacitance at zero bias, avoiding data rate degradation above 10 Mbps. | Use Scenario: Adding secondary-level surge immunity to USB 2.0 data lines (D+/D−) in smart home hubs subjected to human-body-model ESD. IC Role / Device Role / Timing Role: Bidirectional TVS placed directly at connector to shunt ±8 kV contact discharge before reaching PHY IC. Use Value: Achieves IEC 61000-4-2 Level 4 compliance with clamping voltage ≤17.0 V, preventing PHY reset or data corruption. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMB8J10CAHE3/I | RoHS-compliant but not halogen-free; lacks JESD201 Class 2 whisker resistance | Approved for commercial/industrial use; not certified for automotive under-hood environments | Select when halogen-free requirement is waived and cost optimization is prioritized |
| SMAJ10CA | Lower PPPM (400 W), higher VC (20.0 V), SMA package (smaller thermal mass) | Suitable only for lower-energy transients; limited to ambient temperatures ≤125 °C | Choose for space-constrained consumer designs where 800 W surge margin is unnecessary |
Compared with SMB8J10CAHM3/I, SMB8J10CAHE3/I offers identical electrical specs but reduced automotive qualification scope, while SMAJ10CA trades surge robustness and thermal capability for smaller footprint - making SMB8J10CAHM3/I optimal for AEC-Q101–mandated, high-reliability 800 W protection.
Availability
SMB8J10CAHM3/I is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, telecom line conditioning, and consumer USB port protection requiring stable component supply and full AEC-Q101 traceability.
Supply support for SMB8J10CAHM3/I 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, precision, and automotive-grade validation.
The SMB8JxxCA family targets high-power-density transient suppression in harsh environments, engineered specifically for AEC-Q101 compliance, low clamping voltage, and compatibility with automated SMT assembly.
FAQ
What is the clamping voltage of SMB8J10CAHM3/I at its rated peak pulse current?
The SMB8J10CAHM3/I has a maximum clamping voltage (VC) of 17.0 V when subjected to its rated 10 A peak pulse current (IPPM) with a 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and confirmed in Vishay's Document Number 88422, ensuring predictable overvoltage limiting for protected circuits downstream of SMB8J10CAHM3/I.
Is SMB8J10CAHM3/I suitable for automotive applications?
Yes, SMB8J10CAHM3/I is AEC-Q101 qualified and carries the HM3 suffix indicating halogen-free, RoHS-compliant construction validated for automotive use. It supports operating junction temperatures up to +150 °C and meets MSL Level 1 reflow requirements - making SMB8J10CAHM3/I appropriate for engine control units, ADAS camera modules, and body electronics where surge immunity and long-term reliability are critical.
How does the bidirectional configuration of SMB8J10CAHM3/I affect its placement on the PCB?
The SMB8J10CAHM3/I has no polarity marking and functions identically in either orientation due to its symmetrical bidirectional structure. This eliminates orientation-dependent assembly errors and simplifies layout - both terminals connect directly across the protected line and reference plane (e.g., signal-to-ground or differential pair), with no cathode/anode assignment required for correct SMB8J10CAHM3/I operation.
What is the maximum reverse leakage current for SMB8J10CAHM3/I at its stand-off voltage?
At its 10 V stand-off voltage (VWM), the SMB8J10CAHM3/I exhibits a maximum reverse leakage current (ID) of 1.0 µA at 25 °C, as specified in Vishay's Electrical Characteristics table. This ultra-low leakage preserves signal fidelity in high-impedance sensor interfaces and ensures minimal power loss in always-on automotive subsystems using SMB8J10CAHM3/I.
Does SMB8J10CAHM3/I require derating at elevated ambient temperatures?
Yes, SMB8J10CAHM3/I must be derated above TA = 25 °C per Figure 2 in Vishay Document 88422. Its peak pulse power drops linearly to ~50 % at TJ = 125 °C, governed by thermal resistance RθJA = 72 °C/W. Effective derating requires proper copper pad area (0.2" × 0.2") and airflow considerations - confirming that SMB8J10CAHM3/I performance remains within spec only when thermal design aligns with Vishay's published curves.
SMB8J10CAHM3/I 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:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
SMB8J10CAHM3/I FAQ
1.How can I place an order for SMB8J10CAHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB8J10CAHM3/I 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 SMB8J10CAHM3/I reliable?
The price and inventory of SMB8J10CAHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMB8J10CAHM3/I is usually 5 days.
3.What payment methods are accepted for SMB8J10CAHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB8J10CAHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB8J10CAHM3/I?
SMB8J10CAHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB8J10CAHM3/I 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 SMB8J10CAHM3/I?
For technical support, including SMB8J10CAHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB8J10CAHM3/I requirements.
6.How does Aetrix verify that SMB8J10CAHM3/I is sourced from the original manufacturer or authorized distributors?
All SMB8J10CAHM3/I 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 SMB8J10CAHM3/I meets industry standards.
7.What is the process for return or replacement of SMB8J10CAHM3/I?
All SMB8J10CAHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with SMB8J10CAHM3/I, 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 SMB8J10CAHM3/I part is unused and in its original packaging.
Return procedure for SMB8J10CAHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB8J10CAHM3/I Tags
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