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Vishay General Semiconductor - Diodes Division SMB8J6.0CAHM3/H
- Part No.:
- SMB8J6.0CAHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB8J6.0CAHM3/H.pdf
- Description:
- TVS DIODE 6VWM 10.3VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,919
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Product details
Overview
SMB8J6.0CAHM3/H 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 6.0 V stand-off voltage (VWM), 6.67–7.37 V breakdown voltage (VBR) at 10 mA, 10.3 V clamping voltage (VC) at 2000 A peak pulse current, and 800 W peak pulse power (10/1000 µs waveform), targeting automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the SMB8J6.0CAHM3/H datasheet, SMB8J6.0CAHM3/H pinout, SMB8J6.0CAHM3/H application, or SMB8J6.0CAHM3/H equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, low clamping ratio (VC/VWM = 1.72), 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 junction to clamp surges above VBR while maintaining <1.0 µA leakage at 6.0 V. Its glass-passivated chip ensures stable breakdown and low incremental surge resistance, critical for repeatable clamping under repetitive ESD or load-switching events.
Rated for -55 °C to +150 °C junction temperature and qualified to AEC-Q101, SMB8J6.0CAHM3/H supports automotive-grade reliability with thermal resistance RθJA = 72 °C/W and RθJL = 20 °C/W - enabling effective heat dissipation on standard 0.2" × 0.2" copper pads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 6.0 V - maximum continuous reverse operating voltage before clamping begins; defines safe signal line bias margin. |
| VBR (min/max) | 6.67 V / 7.37 V at 10 mA - guaranteed avalanche onset range; ensures predictable turn-on across temperature and lot variation. |
| VC @ IPPM | 10.3 V at 2000 A (10/1000 µs) - peak clamped voltage seen by protected circuit; limits stress on downstream ICs. |
| PPPM | 800 W - maximum non-repetitive surge power handling; enables robust protection against ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 surges. |
| IPPM | 2000 A - peak surge current capacity; supports high-energy transients without degradation when mounted per recommended pad layout. |
| Junction Temp Range | -55 °C to +150 °C - full operational range compatible with under-hood automotive and industrial environments. |
| Qualification | AEC-Q101 qualified - validated for automotive reliability including HTOL, TCT, and ESD testing per stress test plan. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, halogen-free, matte tin-plated leads, MSL Level 1 (260 °C reflow peak), 0.220" × 0.130" footprint with cathode band marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unmarked end) | Low-side terminal in bidirectional operation | Functions as cathode during positive transients and anode during negative transients; symmetric conduction path. |
| Cathode (banded end) | High-side terminal in bidirectional operation | Identified by color band; serves as reference node for PCB layout and polarity-aware placement. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Protects AC-coupled or floating signal lines (e.g., CAN, LIN, sensor bridges) without polarity constraints. |
| AEC-Q101 qualification | Validated for automotive use including temperature cycling, high-temperature operating life, and ESD robustness. |
| Low clamping ratio (VC/VWM = 1.72) | Minimizes overvoltage exposure to protected ICs - critical for 5 V or 3.3 V logic interfaces. |
| Glass-passivated junction | Ensures stable VBR tolerance and long-term reliability under repeated surge stress without parameter drift. |
| MSL Level 1 rating | Enables standard SMT reflow without baking or special handling - reduces manufacturing overhead. |
Applications
| Automotive Sensor Interface | Industrial Digital I/O Protection |
|---|---|
|
Use Scenario: Protecting analog output lines of pressure/temperature sensors in engine control modules exposed to ISO 7637-2 load-dump and inductive switching noise. IC Role / Device Role / Timing Role: Bidirectional TVS clamping element placed directly at connector entry point to shunt surge energy before reaching ADC front-end or signal conditioner. Use Value: Limits transient voltage to ≤10.3 V, preventing latch-up or damage to 5 V rail-tied op-amps and microcontroller inputs. |
Use Scenario: Safeguarding 24 V digital input channels on PLC modules subjected to field-wiring induced surges per IEC 61000-4-5. IC Role / Device Role / Timing Role: Primary surge suppression device on each input channel, placed upstream of optocoupler or Schmitt trigger input stage. Use Value: Absorbs up to 800 W of transient energy without failure, maintaining channel integrity during factory floor electrical disturbances. |
| Automotive LIN Bus Line | Consumer Appliance Motor Control Feedback |
|
Use Scenario: Clamping transients on LIN bus physical layer in body control modules where EMI from solenoids and relays induces fast-rising spikes. IC Role / Device Role / Timing Role: Low-capacitance bidirectional TVS placed adjacent to LIN transceiver pins to suppress sub-100 ns edges without signal distortion. Use Value: Maintains LIN signal integrity with <1.0 µA leakage at 12 V standby, avoiding false wake-up or communication timeout. |
Use Scenario: Protecting hall-effect sensor feedback lines in BLDC motor drives within washing machines and HVAC systems. IC Role / Device Role / Timing Role: Secondary-level transient suppressor between motor winding and sensor PCB, isolating sensitive timing circuits from commutation noise. Use Value: Withstands 2000 A surge current without parametric shift, ensuring consistent rotor position detection after repeated motor starts/stops. |
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/H | Same electrical specs and package; RoHS-compliant but not halogen-free (E3 vs HM3). | Lacks halogen-free certification; acceptable for commercial/industrial, not automotive AEC-Q101 programs requiring HM3. | Select SMB8J6.0CAHE3/H only if halogen-free material is not mandated by OEM specification. |
| SMAJ6.0CAHM3 | Same VWM, VBR, VC; lower PPPM (400 W) and IPPM (64.5 A); SMA (DO-214AC) package, smaller footprint. | Insufficient for 800 W surge requirements; suitable only for low-energy signal lines (e.g., USB, UART) with tighter board space. | Choose SMAJ6.0CAHM3 only when surge threat level is limited to IEC 61000-4-2 ±8 kV contact discharge, not full ISO 7637-2. |
Compared with SMB8J6.0CAHE3/H, SMB8J6.0CAHM3/H adds halogen-free compliance for automotive supply chains; versus SMAJ6.0CAHM3, it delivers 3× higher surge power handling and larger thermal mass - essential for protecting high-current sensor buses and industrial I/O.
Availability
SMB8J6.0CAHM3/H is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial digital I/O protection, LIN bus line safeguarding, and consumer appliance motor control feedback requiring stable component supply and AEC-Q101 traceability.
Supply support for SMB8J6.0CAHM3/H 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 designs and manufactures discrete semiconductors including diodes, MOSFETs, and TVS devices, with focus on reliability, power density, and application-specific performance.
The SMB8J6.0CAHM3/H belongs to Vishay's TRANSZORB® high-power TVS family, engineered for automotive and industrial surge immunity where compact size, AEC-Q101 compliance, and repeatable clamping are mandatory.
FAQ
What is the clamping voltage of SMB8J6.0CAHM3/H at its rated peak pulse current?
The SMB8J6.0CAHM3/H has a maximum clamping voltage (VC) of 10.3 V when subjected to its rated peak pulse current of 2000 A using the 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and guarantees that protected circuitry downstream will not experience voltages exceeding this threshold during standardized surge events.
Is SMB8J6.0CAHM3/H suitable for automotive applications?
Yes, SMB8J6.0CAHM3/H is AEC-Q101 qualified and carries the HM3 suffix indicating halogen-free, RoHS-compliant construction - meeting Tier 1 automotive supplier requirements for under-hood and body electronics. Its -55 °C to +150 °C operating range and validated reliability testing confirm suitability for engine control units, sensor modules, and LIN/CAN subsystems.
How does the SMB8J6.0CAHM3/H differ from unidirectional variants like SMB10J6.0A?
SMB8J6.0CAHM3/H is bidirectional with symmetrical clamping for AC or floating signals, whereas SMB10J6.0A is unidirectional and conducts only in reverse bias. SMB8J6.0CAHM3/H offers 2000 A IPPM and 800 W PPPM, while SMB10J6.0A provides 97.1 A IPPM and 1000 W PPPM - making them functionally distinct for different surge profiles and signal topologies.
What is the meaning of the "HM3" suffix in SMB8J6.0CAHM3/H?
The "HM3" suffix in SMB8J6.0CAHM3/H denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification. It distinguishes this variant from E3 (RoHS only) and HE3 (RoHS + AEC-Q101) versions, confirming compliance with automotive environmental standards and enabling use in safety-critical vehicle systems where halogen content is restricted.
Can SMB8J6.0CAHM3/H be used in place of SMB8J6.0CA?
Yes - SMB8J6.0CAHM3/H is a direct replacement for SMB8J6.0CA, retaining identical electrical characteristics, SMB (DO-214AA) package, and bidirectional functionality. The "HM3/H" suffix adds halogen-free material and AEC-Q101 qualification, with no change to pinout, thermal behavior, or surge performance - ensuring drop-in compatibility in existing designs requiring enhanced compliance.
SMB8J6.0CAHM3/H 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/H FAQ
1.How can I place an order for SMB8J6.0CAHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB8J6.0CAHM3/H 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/H reliable?
The price and inventory of SMB8J6.0CAHM3/H 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/H is usually 5 days.
3.What payment methods are accepted for SMB8J6.0CAHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB8J6.0CAHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB8J6.0CAHM3/H?
SMB8J6.0CAHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB8J6.0CAHM3/H 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/H?
For technical support, including SMB8J6.0CAHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB8J6.0CAHM3/H requirements.
6.How does Aetrix verify that SMB8J6.0CAHM3/H is sourced from the original manufacturer or authorized distributors?
All SMB8J6.0CAHM3/H 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/H meets industry standards.
7.What is the process for return or replacement of SMB8J6.0CAHM3/H?
All SMB8J6.0CAHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with SMB8J6.0CAHM3/H, 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/H part is unused and in its original packaging.
Return procedure for SMB8J6.0CAHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB8J6.0CAHM3/H Tags
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