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Vishay General Semiconductor - Diodes Division SMAJ6.0AHM3/H
- Part No.:
- SMAJ6.0AHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMAJ6.0AHM3/H.pdf
- Description:
- TVS DIODE 6VWM 10.3VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:4,652
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Product details
Overview
SMAJ6.0AHM3/H from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMA (DO-214AC) package, designed for clamping fast voltage transients on power and signal lines. It features 6.0 V stand-off voltage (VWM), 6.67–7.37 V breakdown voltage (VBR) at 10 mA, 400 W peak pulse power (10/1000 μs), and clamps to ≤10.3 V at 38.8 A peak surge current - deployed in automotive sensor protection, industrial I/O interfaces, and DC power rail surge suppression.
For engineers reviewing the SMAJ6.0AHM3/H datasheet, SMAJ6.0AHM3/H pinout, SMAJ6.0AHM3/H application, or SMAJ6.0AHM3/H equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification status (indicated by HM3 suffix), 150 °C max junction temperature, low incremental surge resistance, and compatibility with automated SMT assembly on 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode operates as a clamping device in parallel with protected circuitry, entering avalanche conduction when reverse voltage exceeds VBR. Its glass-passivated junction ensures stable breakdown behavior and low leakage (<800 μA at 6.0 V), while its low Rsurge enables effective energy diversion during 8.3 ms half-sine or 10/1000 μs transients.
The SMAJ6.0AHM3/H is halogen-free and RoHS-compliant (HM3 suffix), qualified to AEC-Q101 for automotive use, and rated for -55 °C to +150 °C operation. Thermal resistance is 120 °C/W (junction-to-ambient) and 30 °C/W (junction-to-lead), supporting reliable performance under repetitive surge conditions when mounted per recommended pad layout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 6.0 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR (min/max) | 6.67 V / 7.37 V at 10 mA - Confirmed breakdown range defining turn-on threshold |
| VC @ IPPM | ≤10.3 V at 38.8 A - Clamped voltage during 400 W transient, limiting stress on downstream ICs |
| PPPM | 400 W (10/1000 μs) - Peak surge power handling capacity; derates above 25 °C ambient |
| IFSM | 40 A (8.3 ms half-sine) - Single-event forward surge rating for unidirectional configuration |
| TJ max | +150 °C - Maximum junction temperature enabling operation in under-hood automotive environments |
| Package | SMA (DO-214AC) - Surface-mount outline with cathode band marking, compatible with J-STD-020 MSL Level 1 |
Pinout & Package
Package: SMA (DO-214AC), molded plastic case with matte tin-plated leads, 0.208" × 0.157" footprint, cathode indicated by band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry (unidirectional) | Connected to lower-potential side of protected line; conducts during forward surge events |
| Cathode | Avalanche conduction terminal | Marked with band; connected to higher-potential side; initiates clamping when reverse voltage exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power (10/1000 μs) | Enables robust protection against IEC 61000-4-5 Level 4 surges without thermal runaway |
| AEC-Q101 qualified (HM3 suffix) | Validated for automotive applications including engine control modules and ADAS sensor interfaces |
| Low profile SMA package | 0.090" height supports compact PCB layouts and automated pick-and-place assembly |
| Glass passivated junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling |
| Halogen-free & RoHS-compliant | Meets environmental compliance requirements for global automotive and industrial OEMs |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and inductive switching transients in vehicle ECUs. IC Role / Device Role / Timing Role: Unidirectional TVS placed between signal line and ground to clamp negative-going transients and limit positive excursions to ≤10.3 V. Use Value: Prevents latch-up or permanent damage to 5 V or 3.3 V interface ICs during ISO 7637-2 Pulse 1/2a/5a events. | Use Scenario: Safeguarding digital input channels of programmable logic controllers exposed to field wiring surges in factory automation systems. IC Role / Device Role / Timing Role: Parallel-connected clamping device on 24 V DC input lines, absorbing energy from relay coil flyback and ESD events. Use Value: Maintains system uptime by preventing false triggering or microcontroller reset caused by >1 kV transients. |
| DC Power Rail Protection | Consumer Device USB Port Protection |
Use Scenario: Secondary-level surge suppression on 5 V or 12 V supply rails feeding microcontrollers, memory, and peripherals in embedded systems. IC Role / Device Role / Timing Role: Standoff-rated TVS across VCC–GND, conducting only during overvoltage events exceeding 6.0 V. Use Value: Limits rail collapse and prevents brown-out resets during 400 W transients with sub-nanosecond response. | Use Scenario: Reverse-polarity and surge protection for USB VBUS lines in portable electronics where space and reliability are critical. IC Role / Device Role / Timing Role: Unidirectional clamp referenced to ground, blocking reverse connection while suppressing ESD and hot-swap spikes. Use Value: Achieves IEC 61000-4-2 ±15 kV contact discharge immunity without adding series impedance or signal distortion. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ6.0A-M3/61 | Same electrical specs; RoHS-compliant but not AEC-Q101 qualified; M3 suffix denotes halogen-free commercial grade | Lacks automotive qualification; suitable for industrial/commercial designs without AEC requirements | Select when AEC-Q101 is not mandated and cost optimization is prioritized |
| SMAJ6.0AHE3_A/H | Same electrical specs; HE3 suffix indicates RoHS-compliant AEC-Q101 qualified version; differs in material composition (non-halogen-free) | Meets automotive qualification but contains halogens; may conflict with OEM green-material mandates | Choose when AEC-Q101 is required and halogen content is acceptable per customer spec |
Compared with SMAJ6.0AHM3/H, SMAJ6.0A-M3/61 offers identical clamping performance without automotive qualification, while SMAJ6.0AHE3_A/H provides AEC-Q101 compliance using non-halogen-free materials - making SMAJ6.0AHM3/H the only option satisfying both AEC-Q101 and halogen-free requirements simultaneously.
Availability
SMAJ6.0AHM3/H is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and DC power rail protection requiring stable component supply and full AEC-Q101 traceability.
Supply support for SMAJ6.0AHM3/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 and application-specific performance.
The SMAJ series is engineered for high-energy transient suppression in harsh environments, targeting automotive, industrial, and telecom infrastructure where robustness and qualification compliance are mandatory.
FAQ
What does the 'HM3' suffix mean in SMAJ6.0AHM3/H?
The 'HM3' suffix in SMAJ6.0AHM3/H indicates halogen-free, RoHS-compliant construction with AEC-Q101 qualification. 'H' denotes the AEC-Q101 grade, 'M3' specifies halogen-free and RoHS-compliant materials, and '/H' refers to the 7-inch tape-and-reel packaging format. This makes SMAJ6.0AHM3/H suitable for automotive applications requiring both environmental compliance and reliability validation.
Is SMAJ6.0AHM3/H bidirectional or unidirectional?
SMAJ6.0AHM3/H is a unidirectional TVS diode, as confirmed by its part number structure (no 'CA' suffix) and datasheet specifications. It features a cathode band marking and conducts in forward direction during surge events, while clamping reverse transients above its breakdown voltage. Bidirectional variants carry 'CA' suffixes (e.g., SMAJ6.0CA).
What is the maximum clamping voltage of SMAJ6.0AHM3/H at rated surge current?
The maximum clamping voltage (VC) of SMAJ6.0AHM3/H is 10.3 V at its rated peak pulse current (IPPM) of 38.8 A, measured under the standard 10/1000 μs waveform. This value ensures downstream 5 V or 3.3 V logic circuits remain within safe operating limits during transient events, directly supporting IEC 61000-4-5 compliance strategies.
Can SMAJ6.0AHM3/H be used in place of SMAJ6.0A-E3/61?
SMAJ6.0AHM3/H and SMAJ6.0A-E3/61 share identical electrical characteristics and SMA package, but differ in qualification and material content: SMAJ6.0AHM3/H is AEC-Q101 qualified and halogen-free, whereas SMAJ6.0A-E3/61 is RoHS-compliant commercial grade without automotive qualification. Substitution requires verification that halogen-free and AEC-Q101 requirements are either met or waived in the target design.
What is the thermal resistance of SMAJ6.0AHM3/H, and how does it affect layout?
SMAJ6.0AHM3/H has a typical junction-to-ambient thermal resistance (RθJA) of 120 °C/W and junction-to-lead (RθJL) of 30 °C/W. To maintain safe operation under repetitive surges, PCB layout must use minimum 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal as specified - reducing thermal impedance and preventing junction overheating beyond the 150 °C maximum rating.
SMAJ6.0AHM3/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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):
- 38.8A
- Power - Peak Pulse:
- 400W
- 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-214AC (SMA)
SMAJ6.0AHM3/H FAQ
1.How can I place an order for SMAJ6.0AHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMAJ6.0AHM3/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 SMAJ6.0AHM3/H reliable?
The price and inventory of SMAJ6.0AHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMAJ6.0AHM3/H is usually 5 days.
3.What payment methods are accepted for SMAJ6.0AHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMAJ6.0AHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMAJ6.0AHM3/H?
SMAJ6.0AHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMAJ6.0AHM3/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 SMAJ6.0AHM3/H?
For technical support, including SMAJ6.0AHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMAJ6.0AHM3/H requirements.
6.How does Aetrix verify that SMAJ6.0AHM3/H is sourced from the original manufacturer or authorized distributors?
All SMAJ6.0AHM3/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 SMAJ6.0AHM3/H meets industry standards.
7.What is the process for return or replacement of SMAJ6.0AHM3/H?
All SMAJ6.0AHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with SMAJ6.0AHM3/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 SMAJ6.0AHM3/H part is unused and in its original packaging.
Return procedure for SMAJ6.0AHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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