Vishay General Semiconductor - Diodes Division SMBJ6.0AHM3_A/H
- Part No.:
- SMBJ6.0AHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ6.0AHM3_A/H.pdf
- Description:
- TVS DIODE 6VWM 10.3VC DO214AA
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
SMBJ6.0AHM3_A/H from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping fast-rising voltage transients on power and signal lines. It features a 6.0 V stand-off voltage (VWM), 6.67–7.37 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 - used for protecting MOSFET gates, microcontroller I/O, and sensor interfaces in industrial power supplies.
For engineers reviewing the SMBJ6.0AHM3_A/H datasheet, SMBJ6.0AHM3_A/H pinout, SMBJ6.0AHM3_A/H application, or SMBJ6.0AHM3_A/H equivalent, key selection criteria include unidirectional polarity, 10.3 V clamping voltage at rated IPPM, AEC-Q101 qualification status, halogen-free RoHS compliance (HM3 suffix), and thermal resistance of 100 °C/W junction-to-ambient under standard PCB pad layout.
Technical Context
This TVS diode operates as a voltage-clamping protection device, conducting only when reverse voltage exceeds its breakdown threshold. Its glass-passivated junction ensures stable VBR tolerance (±5%) and low leakage (<800 µA at VWM), while the low incremental surge resistance enables rapid energy absorption during ESD or inductive switching events.
The SMBJ6.0AHM3_A/H is rated for repetitive 10/1000 µs surges at 0.01% duty cycle and supports operating junction temperatures from –55 °C to +150 °C. Its MSL Level 1 rating (per J-STD-020) and 260 °C lead-free reflow compatibility confirm suitability for automated SMT assembly without moisture sensitivity concerns.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 6.0 V - maximum continuous reverse voltage before significant conduction begins; sets safe operating margin below circuit rail voltage. |
| VBR (Breakdown Voltage) | 6.67–7.37 V at 10 mA - precise clamping initiation range ensuring reliable overvoltage detection without false triggering. |
| VC (Clamping Voltage) | ≤10.3 V at 58.3 A IPPM - limits transient voltage seen by protected ICs to safe levels during 600 W surge events. |
| PPPM (Peak Pulse Power) | 600 W (10/1000 µs waveform) - defines maximum single-event surge energy absorption capability under standardized test conditions. |
| RθJA (Thermal Resistance) | 100 °C/W - determines junction temperature rise per watt dissipated; requires minimum 0.2" × 0.2" copper pads per terminal for rated derating. |
| TJmax | +150 °C - maximum allowable junction temperature; enables operation in high-ambient environments like motor drives and automotive ECUs. |
| Leakage Current (ID) | ≤800 µA at VWM - ensures minimal standby power loss and no interference with low-current sensor or logic circuits. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, halogen-free, RoHS-compliant, with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Polarity indicated by cathode band; anode and cathode terminals are axially oriented along the body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction; tied to lower-potential node (e.g., ground or return path). | Enables bidirectional surge handling only when paired with complementary devices; not active in unidirectional clamping mode. |
| Cathode | Current exit point during reverse-biased clamping; connected to protected line (e.g., VCC, signal input). | Defines clamping direction: conducts when protected line exceeds cathode reference (ground), diverting surge current to GND. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Supports robust protection against IEC 61000-4-5 Level 4 surges (4 kV line-earth) without degradation under repeated stress. |
| Low clamping voltage (≤10.3 V) | Ensures downstream 5 V logic and analog sensors remain within absolute maximum ratings during transient events. |
| AEC-Q101 qualified (HM3 suffix) | Validated for automotive powertrain and body electronics applications requiring zero defect reliability across temperature cycling and humidity exposure. |
| MSL Level 1, 260 °C reflow compatible | Eliminates pre-baking requirements and supports high-throughput SMT assembly in commercial and automotive production lines. |
| Glass passivated junction | Delivers stable VBR drift <0.1%/°C and long-term parameter consistency over 10+ year service life in harsh environments. |
Applications
| Industrial Motor Drives | Automotive Body Control Modules |
|---|---|
|
Use Scenario: Suppresses inductive kickback from relay coils and solenoid drivers in PLC output stages. IC Role / Device Role / Timing Role: Unidirectional clamping diode placed between coil supply rail and ground, triggered within nanoseconds of voltage reversal. Use Value: Prevents >100 V transients from damaging 24 V-rated microcontrollers and level-shifting buffers, extending system uptime in factory automation. |
Use Scenario: Protects LIN bus transceivers and window lift motor controllers from load dump and jump-start surges. IC Role / Device Role / Timing Role: Standoff-connected TVS on 12 V supply rail, clamping to ≤10.3 V before regulator input stage. Use Value: Maintains functional safety integrity per ISO 16750-2 Pulse 5a/b, enabling compliance without additional filtering components. |
| Consumer Power Adapters | Industrial Sensor Signal Conditioning |
|
Use Scenario: Shields secondary-side DC-DC converter inputs from reflected primary-side switching noise and lightning-induced surges. IC Role / Device Role / Timing Role: Reverse-biased TVS on 5 V/12 V output rails, activated only during overvoltage excursions exceeding VWM. Use Value: Reduces need for oversized capacitors and ferrite beads, lowering BOM cost while meeting UL 62368-1 transient immunity requirements. |
Use Scenario: Guards analog front-end inputs of pressure and temperature sensors exposed to ESD in HVAC control panels. IC Role / Device Role / Timing Role: Low-capacitance (≈100 pF) unidirectional TVS placed directly at connector interface, before op-amp input. Use Value: Limits ESD-induced offset shift to <1 mV and prevents latch-up in precision instrumentation amplifiers during 8 kV contact discharge. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ6.0A-E3/52 | RoHS-compliant but not halogen-free; lacks AEC-Q101 qualification; same electrical specs and SMB package. | Approved for commercial-grade power supplies and consumer electronics, not automotive or extended-temperature industrial use. | Select when halogen-free content and automotive qualification are not required; lower cost alternative for non-critical applications. |
| SMBJ6.0CAHM3_A/H | Bidirectional variant with symmetrical 6.4–7.25 V VBR; identical package, power rating, and HM3 suffix qualifications. | Required for AC-coupled lines (e.g., RS-485, CAN bus) where polarity reversal occurs; unsuitable for DC rail protection. | Choose only for bidirectional signal paths; not interchangeable with SMBJ6.0AHM3_A/H due to polarity mismatch and different clamping behavior. |
Compared with SMBJ6.0A-E3/52, the SMBJ6.0AHM3_A/H adds halogen-free construction and AEC-Q101 validation for automotive deployment, while SMBJ6.0CAHM3_A/H serves fundamentally different AC/communication-line roles - neither is a drop-in replacement, and PCB layout must reflect polarity and application topology.
Availability
SMBJ6.0AHM3_A/H is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, consumer power adapters, and industrial sensor signal conditioning requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for SMBJ6.0AHM3_A/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, rectifiers, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The SMBJ series was developed to deliver high-power transient suppression in compact surface-mount packages for automotive, industrial, and computing systems where space, thermal performance, and AEC-Q101 compliance are critical.
FAQ
What is the clamping voltage of SMBJ6.0AHM3_A/H at its rated peak pulse current?
The SMBJ6.0AHM3_A/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 standardized test conditions with 0.2" × 0.2" copper pads per terminal and confirms the device's ability to limit transient voltage seen by downstream components. The SMBJ6.0AHM3_A/H maintains this clamping performance across its full operating temperature range of –55 °C to +150 °C.
Is SMBJ6.0AHM3_A/H qualified for automotive applications?
Yes, SMBJ6.0AHM3_A/H is AEC-Q101 qualified, as confirmed by the "HM3" suffix and documentation in Vishay's datasheet (Document Number: 88392, Revision: 09-Jan-2024). This qualification covers stress tests including temperature cycling, humidity bias HAST, and mechanical shock - validating its use in automotive body electronics, infotainment power rails, and engine control peripheral protection. The SMBJ6.0AHM3_A/H meets all requirements for Grade 2 (–40 °C to +105 °C ambient) operation.
What does the "HM3" suffix indicate in SMBJ6.0AHM3_A/H?
The "HM3" suffix in SMBJ6.0AHM3_A/H denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification. It distinguishes this variant from commercial-grade "E3" (RoHS only) and "HE3" (AEC-Q101, non-halogen-free) versions. The "_A/H" further specifies packaging: "A" indicates revision level, and "H" denotes 7" tape-and-reel delivery (750 units per reel). All HM3 variants meet JESD 201 Class 2 whisker resistance and MSL Level 1 reflow standards.
Can SMBJ6.0AHM3_A/H be used in bidirectional signal lines like RS-485?
No, SMBJ6.0AHM3_A/H is a unidirectional TVS diode and must not be used on bidirectional signal lines such as RS-485 or CAN bus. Its cathode-band polarity allows conduction only when the protected line goes positive relative to ground. For bidirectional protection, the SMBJ6.0CAHM3_A/H variant - with symmetrical breakdown in both directions - is required. Using SMBJ6.0AHM3_A/H on AC-coupled lines risks failure to clamp negative transients and potential device damage.
What is the maximum leakage current of SMBJ6.0AHM3_A/H at its stand-off voltage?
The SMBJ6.0AHM3_A/H exhibits a maximum reverse leakage current (ID) of 800 µA at its 6.0 V stand-off voltage (VWM), measured at 25 °C. This low leakage ensures minimal impact on high-impedance sensor nodes or battery-powered circuits. Leakage remains below 1 mA across the full operating temperature range, supporting stable performance in precision analog and low-power IoT edge devices using SMBJ6.0AHM3_A/H.
SMBJ6.0AHM3_A/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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- 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)
SMBJ6.0AHM3_A/H FAQ
1.How can I place an order for SMBJ6.0AHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ6.0AHM3_A/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 SMBJ6.0AHM3_A/H reliable?
The price and inventory of SMBJ6.0AHM3_A/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ6.0AHM3_A/H is usually 5 days.
3.What payment methods are accepted for SMBJ6.0AHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ6.0AHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ6.0AHM3_A/H?
SMBJ6.0AHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ6.0AHM3_A/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 SMBJ6.0AHM3_A/H?
For technical support, including SMBJ6.0AHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ6.0AHM3_A/H requirements.
6.How does Aetrix verify that SMBJ6.0AHM3_A/H is sourced from the original manufacturer or authorized distributors?
All SMBJ6.0AHM3_A/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 SMBJ6.0AHM3_A/H meets industry standards.
7.What is the process for return or replacement of SMBJ6.0AHM3_A/H?
All SMBJ6.0AHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ6.0AHM3_A/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 SMBJ6.0AHM3_A/H part is unused and in its original packaging.
Return procedure for SMBJ6.0AHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ6.0AHM3_A/H Tags

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Diodes Incorporated
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