My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMB8J6.0CAHM3/I
- Part No.:
- SMB8J6.0CAHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB8J6.0CAHM3/I.pdf
- Description:
- TVS DIODE 6VWM 10.3VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,743
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMB8J6.0CAHM3/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 6.0 V stand-off voltage (VWM), 10.3 V maximum clamping voltage (VC) at 2000 A peak pulse current (IPPM), 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 SMB8J6.0CAHM3/I datasheet, SMB8J6.0CAHM3/I pinout, SMB8J6.0CAHM3/I application, or SMB8J6.0CAHM3/I equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, halogen-free RoHS compliance (HM3 suffix), and compatibility with 0.2" × 0.2" copper pad layout per JEDEC standard.
Technical Context
This device operates as a voltage-clamped crowbar during transients, leveraging a glass-passivated silicon junction to achieve sub-nanosecond response time and low incremental surge resistance. Its bidirectional symmetry enables protection of AC-coupled or differential signal paths without polarity sensitivity.
Rated for -55 °C to +150 °C operating junction temperature and qualified to AEC-Q101, SMB8J6.0CAHM3/I supports automotive-grade reliability under thermal cycling and mechanical stress. The HM3 suffix confirms halogen-free, RoHS-compliant construction with JESD201 Class 2 whisker resistance and MSL Level 1 moisture sensitivity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 6.0 V - maximum continuous reverse operating voltage before clamping initiates |
| VBR min/max | 6.67 V / 7.37 V at 10 mA - ensures reliable breakdown onset within tight tolerance band |
| VC @ IPPM | 10.3 V at 2000 A - limits downstream voltage stress during 10/1000 µs surge events |
| PPPM | 800 W - defines energy-handling capacity for standardized lightning/surge immunity testing |
| ID @ VWM | 1000 µA - low leakage preserves signal integrity in high-impedance sensor or communication lines |
| TJ max | +150 °C - enables operation in under-hood automotive environments and industrial enclosures |
| Package | SMB (DO-214AA) - surface-mount footprint compatible with automated placement and reflow soldering |
Pinout & Package
Two-terminal SMB (DO-214AA) package with no polarity marking for bidirectional operation; terminals are matte tin-plated, solderable per J-STD-002 and JESD22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient conduction path | Identical terminal behavior in both directions - no cathode band marking required |
| Case (body) | Thermal and mechanical interface | Non-electrical; mounted on 0.2" × 0.2" copper pads for optimal thermal dissipation (RθJA = 72 °C/W) |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control modules and ADAS sensor interfaces |
| Halogen-free & RoHS-compliant (HM3) | Meets global environmental regulations and JESD201 Class 2 whisker resistance for long-term reliability |
| Low clamping ratio (VC/VWM = 1.72) | Minimizes overvoltage exposure to protected ICs such as CAN transceivers or ADC front-ends |
| MSL Level 1 | Unlimited floor life at ≤30 °C/60% RH - eliminates bake requirements prior to SMT assembly |
| Glass-passivated junction | Enhances stability against humidity, contamination, and thermal cycling versus epoxy-passivated alternatives |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
Use Scenario: Protecting LIN bus or analog sensor outputs (e.g., pressure, temperature) in engine bay modules exposed to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional TVS clamping element placed directly at connector entry point before signal conditioning circuitry. Use Value: Limits transient-induced latch-up or gate oxide damage in microcontrollers and op-amps by clamping to ≤10.3 V during 2000 A surges. | Use Scenario: Safeguarding RS-485 transceiver inputs in factory automation PLCs subjected to EFT bursts and inductive switching noise. IC Role / Device Role / Timing Role: Primary line-level surge suppressor on differential data lines, positioned adjacent to connector footprint. Use Value: Maintains signal fidelity with <1000 µA leakage at 6.0 V while absorbing 800 W surge energy without degradation. |
| Consumer Power Adapter Input | Telecom Line Card Protection |
Use Scenario: Secondary-side DC input protection in USB-C PD adapters where 6 V rails feed buck controllers and USB port logic. IC Role / Device Role / Timing Role: Standoff-rated TVS across VBUS and GND to suppress coupling from primary-side transients or hot-plug events. Use Value: Prevents overvoltage failure of 5–6 V tolerant ICs (e.g., USB PD controllers) with fast response and minimal capacitance impact. | Use Scenario: Overvoltage suppression on POTS line interface circuits in VoIP gateways handling lightning-induced surges per ITU-T K.20. IC Role / Device Role / Timing Role: First-stage protector on tip/ring lines before hybrid transformers and SLIC devices. Use Value: Enables compliance with GR-1089-CORE Level 4 surge immunity using compact SMB footprint and repeatable clamping performance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMB8J6.0CAHE3/I | RoHS-compliant but not halogen-free; lacks JESD201 Class 2 whisker rating | Suitable for commercial-grade designs without automotive or extended-reliability requirements | Select when halogen-free content is not mandated and cost optimization is prioritized |
| SMAJ6.0CA-M3 | Lower PPPM (600 W), smaller SMA package (DO-214AC), higher RθJA (90 °C/W) | Better suited for space-constrained consumer PCBs with lower surge threat levels | Choose for non-automotive applications where 800 W rating and thermal robustness are not required |
Compared with SMB8J6.0CAHM3/I, SMB8J6.0CAHE3/I offers identical electrical specs but reduced material compliance, while SMAJ6.0CA-M3 trades power handling and thermal performance for smaller footprint - making SMB8J6.0CAHM3/I optimal for AEC-Q101–mandated, high-surge industrial and automotive deployments.
Availability
SMB8J6.0CAHM3/I is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O cards, telecom line interface units, and consumer power adapter designs requiring stable component supply and long-term lifecycle support.
Supply support for SMB8J6.0CAHM3/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, 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–qualified surge protection in harsh electromagnetic environments.
FAQ
What is the clamping voltage of SMB8J6.0CAHM3/I at its rated peak pulse current?
The SMB8J6.0CAHM3/I has a maximum clamping voltage (VC) of 10.3 V when subjected to its rated 2000 A peak pulse current (IPPM) with a 10/1000 µs waveform. This value is measured under standardized test conditions per ANSI/IEEE C62.35 and ensures predictable overvoltage limiting for protected downstream circuitry. The SMB8J6.0CAHM3/I maintains this clamping performance across its full operating temperature range.
Is SMB8J6.0CAHM3/I suitable for automotive applications?
Yes, SMB8J6.0CAHM3/I is AEC-Q101 qualified and carries the HM3 suffix indicating halogen-free, RoHS-compliant construction with JESD201 Class 2 whisker resistance. It is explicitly rated for automotive use in engine control units, body electronics, and ADAS sensor interfaces where reliability under thermal cycling, vibration, and high-energy transients is critical. The SMB8J6.0CAHM3/I meets all stress-test requirements defined in the AEC-Q101 standard.
How does the SMB8J6.0CAHM3/I differ from unidirectional variants like SMB10J6.0A?
The SMB8J6.0CAHM3/I is bidirectional with symmetrical clamping in both polarities and no cathode marking, whereas SMB10J6.0A is unidirectional with a cathode band and higher 1000 W PPPM rating. SMB8J6.0CAHM3/I supports AC-coupled or differential signal lines (e.g., RS-485, LIN), while SMB10J6.0A suits DC power rail protection. Both share the same VWM (6.0 V) and VC (10.3 V), but SMB8J6.0CAHM3/I delivers 2000 A IPPM versus 97.1 A for SMB10J6.0A.
What is the thermal resistance of SMB8J6.0CAHM3/I, and how does it affect layout?
The SMB8J6.0CAHM3/I has a typical junction-to-ambient thermal resistance (RθJA) of 72 °C/W when mounted on 0.2" × 0.2" copper pads per terminal. This value assumes JEDEC-standard pad layout and dictates minimum copper area needed to maintain TJ ≤ 150 °C under worst-case 800 W surge duty. Layout must replicate the recommended pad dimensions (0.086" × 0.220") to achieve specified thermal performance - undersized pads increase RθJA and risk thermal runaway during repetitive surges.
Does SMB8J6.0CAHM3/I require special handling during PCB assembly?
No special handling is required: SMB8J6.0CAHM3/I is rated MSL Level 1 per J-STD-020, meaning unlimited floor life at ≤30 °C/60% RH and compatibility with standard lead-free reflow profiles peaking at 260 °C. Its matte tin-plated leads meet J-STD-002 and JESD22-B102 solderability standards. The SMB8J6.0CAHM3/I can be placed and reflowed using standard SMT equipment without pre-bake or dry-pack requirements.
SMB8J6.0CAHM3/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):
- 6V
- Voltage - Breakdown (Min):
- 6.67V
- Voltage - Clamping (Max) @ Ipp:
- 10.3V
- Current - Peak Pulse (10/1000µs):
- 77.7A
- 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)
SMB8J6.0CAHM3/I FAQ
1.How can I place an order for SMB8J6.0CAHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB8J6.0CAHM3/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 SMB8J6.0CAHM3/I reliable?
The price and inventory of SMB8J6.0CAHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMB8J6.0CAHM3/I is usually 5 days.
3.What payment methods are accepted for SMB8J6.0CAHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB8J6.0CAHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB8J6.0CAHM3/I?
SMB8J6.0CAHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB8J6.0CAHM3/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 SMB8J6.0CAHM3/I?
For technical support, including SMB8J6.0CAHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB8J6.0CAHM3/I requirements.
6.How does Aetrix verify that SMB8J6.0CAHM3/I is sourced from the original manufacturer or authorized distributors?
All SMB8J6.0CAHM3/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 SMB8J6.0CAHM3/I meets industry standards.
7.What is the process for return or replacement of SMB8J6.0CAHM3/I?
All SMB8J6.0CAHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with SMB8J6.0CAHM3/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 SMB8J6.0CAHM3/I part is unused and in its original packaging.
Return procedure for SMB8J6.0CAHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB8J6.0CAHM3/I Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
