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Vishay General Semiconductor - Diodes Division SMBJ6.0CAHM3_B/H
- Part No.:
- SMBJ6.0CAHM3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ6.0CAHM3_B/H.pdf
- Description:
- 600W,6.0V 5%,BIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:4,154
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Product details
Overview
SMBJ6.0CAHM3_B/H from Vishay General Semiconductor is a bidirectional surface-mount transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping voltage transients on signal or power lines. It features a 6.0 V stand-off voltage (VWM), 6.4–7.07 V breakdown voltage (VBR) at 10 mA, 600 W peak pulse power (10/1000 µs), and clamps to ≤10.3 V at 58.3 A peak surge current - deployed in sensor interface protection and industrial I/O circuits.
For engineers reviewing the SMBJ6.0CAHM3_B/H datasheet, SMBJ6.0CAHM3_B/H pinout, SMBJ6.0CAHM3_B/H application, or SMBJ6.0CAHM3_B/H equivalent, key selection criteria include bidirectional clamping capability, 10.3 V max clamping voltage at rated IPPM, AEC-Q101 qualification status, halogen-free RoHS compliance (HM3 suffix), and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This device operates as a voltage-clamping protector with symmetrical avalanche behavior in both directions, enabling robust suppression of positive and negative transients without polarity sensitivity. Its glass-passivated junction ensures stable VBR tolerance (±5% typical) and low incremental surge resistance, critical for consistent clamping under repetitive ESD or lightning-induced surges.
The SMBJ6.0CAHM3_B/H delivers 600 W peak pulse power per 10/1000 µs waveform at TA = 25 °C, derating linearly above 25 °C with RθJA = 100 °C/W. It meets MSL Level 1 per J-STD-020 and supports peak forward surge current up to 100 A (8.3 ms half-sine) - though bidirectional operation eliminates forward/reverse distinction in clamping function.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 6.0 V - maximum continuous reverse stand-off voltage before significant leakage; defines safe operating margin below breakdown |
| VBR min/max | 6.4 V / 7.07 V at IT = 10 mA - tight breakdown window ensures predictable turn-on across temperature and unit variation |
| VC @ IPPM | ≤10.3 V at 58.3 A - clamping voltage during 600 W transient; determines protected circuit's maximum stress level |
| PPPM | 600 W (10/1000 µs) - standardized surge energy handling capacity; validated with 0.01% duty cycle repetition |
| IPPM | 58.3 A - peak surge current corresponding to 600 W clamping; used to size PCB trace thermal mass and layout |
| TJ max | +150 °C - maximum junction temperature; enables operation in under-hood automotive or high-ambient industrial environments |
| Package | SMB (DO-214AA) - 0.205" × 0.130" footprint with matte tin-plated leads; optimized for high-speed pick-and-place and reflow |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional - no polarity marking; symmetrical terminals with cathode/anode indistinguishable in function.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode/Cathode (bidirectional) | Either terminal serves as input/output for transient suppression; no DC polarity dependency |
| Terminal 2 | Anode/Cathode (bidirectional) | Paired terminal completing the bidirectional clamping path; identical electrical role to Terminal 1 |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without external polarity management |
| 600 W peak pulse power | Withstands IEC 61000-4-5 Level 4 surges (4 kV line-earth) when mounted on 5.0 mm × 5.0 mm copper pads |
| Halogen-free & RoHS-compliant (HM3) | Meets IPC-1752A material declaration requirements and JEDEC J-STD-20 MSL Level 1 reflow profile |
| AEC-Q101 qualified | Validated for automotive powertrain and body electronics per stress test conditions including HTGB, HTRB, and TCT |
| Low clamping ratio (VC/VWM ≈ 1.72) | Minimizes overvoltage exposure to downstream ICs - e.g., protects 3.3 V or 5 V logic interfaces during surge events |
Applications
| Automotive Sensor Interface | Industrial PLC Analog Input |
|---|---|
|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor front-ends (e.g., pressure, temperature) from load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed across differential signal pair or supply rail to limit transient excursions. Use Value: Maintains signal integrity by clamping transients to ≤10.3 V, preventing latch-up or damage to 5 V tolerant microcontrollers and ADCs. |
Use Scenario: Shielding 4–20 mA current loop inputs and ±10 V analog inputs in programmable logic controllers against field-wiring induced surges. IC Role / Device Role / Timing Role: Parallel-connected TVS across input terminals to shunt surge energy before it reaches precision op-amps or isolators. Use Value: Enables compliance with IEC 61000-4-4 (EFT) and IEC 61000-4-5 (surge) immunity standards without adding series impedance. |
| Consumer USB Port Protection | Telecom Line Card Surge Suppression |
|
Use Scenario: Safeguarding USB 2.0 data lines (D+/D−) and VBUS in set-top boxes and smart displays from ESD and hot-plug transients. IC Role / Device Role / Timing Role: Low-capacitance bidirectional clamp placed directly at connector to minimize stub length and preserve signal rise time. Use Value: Limits ESD-induced voltage to <10.3 V within <1 ns response, meeting IEC 61000-4-2 Level 4 (±15 kV air) without degrading 480 Mbps signaling. |
Use Scenario: Front-end protection of xDSL or POTS line interface units (LIUs) exposed to lightning-induced longitudinal surges on twisted-pair telecom lines. IC Role / Device Role / Timing Role: Primary coarse protection stage before gas discharge tube (GDT) or secondary TVS, handling bulk surge energy. Use Value: Absorbs up to 600 W of surge power while maintaining ≤10.3 V clamping - reducing stress on downstream GDT holdover and bridge rectifier components. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ6.0CAHE3_B/H | Same electrical specs, but RoHS-compliant commercial grade (E3) - not halogen-free or AEC-Q101 qualified | Lacks automotive qualification and halogen-free certification; suitable for non-automotive industrial/commercial use only | Select when AEC-Q101 and halogen-free requirements are not mandated, and cost optimization is prioritized |
| SMAJ6.0CA | Lower 400 W PPPM, larger VC (10.5 V), SMA package (smaller thermal mass, higher RθJA) | Reduced surge handling margin; less suitable for repeated surges or high-ambient environments | Choose only for space-constrained designs where 400 W rating suffices and thermal derating is carefully managed |
Compared with SMBJ6.0CAHE3_B/H, the SMBJ6.0CAHM3_B/H adds halogen-free construction and AEC-Q101 qualification - essential for automotive Tier-1 BOMs - while SMAJ6.0CA trades surge robustness and thermal performance for smaller footprint, limiting its use to lower-energy transient environments.
Availability
SMBJ6.0CAHM3_B/H is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC analog inputs, consumer USB port protection, and telecom line card surge suppression requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for SMBJ6.0CAHM3_B/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 is a global leader in discrete semiconductors, specializing in diodes, MOSFETs, optoelectronics, and passive components with emphasis on reliability, power efficiency, and automotive-grade validation.
The SMBJ series targets high-energy transient protection in harsh environments - engineered for automotive, industrial, and telecom applications where robustness, AEC-Q101 compliance, and repeatable clamping performance are mandatory.
FAQ
What is the clamping voltage of SMBJ6.0CAHM3_B/H at its rated peak pulse current?
The SMBJ6.0CAHM3_B/H clamps to a maximum of 10.3 V at its rated peak pulse current of 58.3 A (10/1000 µs waveform). This value is measured under standard test conditions per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuitry during surge events. The SMBJ6.0CAHM3_B/H maintains this clamping performance across its specified operating temperature range and is validated with 5.0 mm × 5.0 mm copper pad layout per datasheet Fig. 2.
Is SMBJ6.0CAHM3_B/H suitable for automotive applications?
Yes, SMBJ6.0CAHM3_B/H is AEC-Q101 qualified and explicitly designated for automotive use via the HM3 suffix (halogen-free, RoHS-compliant, AEC-Q101 qualified). It has passed stress tests including high-temperature reverse bias (HTRB), high-temperature gate bias (HTGB), and temperature cycling (TCT), making it appropriate for engine control units, body electronics, and ADAS sensor interfaces where reliability under thermal and electrical stress is critical. The SMBJ6.0CAHM3_B/H meets automotive-grade material and process requirements per Vishay's qualification report.
How does the bidirectional design of SMBJ6.0CAHM3_B/H affect its circuit implementation?
The bidirectional design of SMBJ6.0CAHM3_B/H eliminates polarity constraints - it functions identically regardless of voltage polarity across its terminals, making it ideal for AC-coupled lines, differential pairs (e.g., RS-485, CAN), or floating supplies. Unlike unidirectional TVS diodes, SMBJ6.0CAHM3_B/H requires no orientation during placement and provides symmetrical clamping in both directions, simplifying layout and reducing BOM count. Its lack of cathode marking reflects this functional symmetry, and the SMBJ6.0CAHM3_B/H achieves this via back-to-back avalanche junctions in a single die.
What is the thermal resistance and derating behavior of SMBJ6.0CAHM3_B/H?
SMBJ6.0CAHM3_B/H has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on minimum recommended 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads. Its peak pulse power derates linearly above 25 °C ambient, reaching ~50% of 600 W at 100 °C case temperature per Fig. 2 in the datasheet. This derating must be applied in high-ambient designs - for example, at 75 °C ambient, SMBJ6.0CAHM3_B/H supports ~300 W peak pulse power. The SMBJ6.0CAHM3_B/H also features RθJL = 20 °C/W for lead-to-junction conduction.
Does SMBJ6.0CAHM3_B/H meet moisture sensitivity and reflow requirements for automated assembly?
Yes, SMBJ6.0CAHM3_B/H meets MSL Level 1 per J-STD-020, meaning it can be stored indefinitely at ≤30 °C/85% RH without baking and withstands standard lead-free reflow profiles with peak temperatures up to 260 °C. Its matte tin-plated leads comply with J-STD-002 and JESD 22-B102 solderability standards, and whisker resistance is certified to JESD 201 Class 2. These attributes ensure robust manufacturability in high-volume SMT lines - a key feature confirmed for the HM3 suffix variant of SMBJ6.0CAHM3_B/H.
SMBJ6.0CAHM3_B/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Bulk
- Product Status:
- Active
- 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):
- 58.3A
- Power - Peak Pulse:
- 600W
- 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)
SMBJ6.0CAHM3_B/H FAQ
1.How can I place an order for SMBJ6.0CAHM3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ6.0CAHM3_B/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 SMBJ6.0CAHM3_B/H reliable?
The price and inventory of SMBJ6.0CAHM3_B/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ6.0CAHM3_B/H is usually 5 days.
3.What payment methods are accepted for SMBJ6.0CAHM3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ6.0CAHM3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ6.0CAHM3_B/H?
SMBJ6.0CAHM3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ6.0CAHM3_B/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 SMBJ6.0CAHM3_B/H?
For technical support, including SMBJ6.0CAHM3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ6.0CAHM3_B/H requirements.
6.How does Aetrix verify that SMBJ6.0CAHM3_B/H is sourced from the original manufacturer or authorized distributors?
All SMBJ6.0CAHM3_B/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 SMBJ6.0CAHM3_B/H meets industry standards.
7.What is the process for return or replacement of SMBJ6.0CAHM3_B/H?
All SMBJ6.0CAHM3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ6.0CAHM3_B/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 SMBJ6.0CAHM3_B/H part is unused and in its original packaging.
Return procedure for SMBJ6.0CAHM3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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