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Vishay General Semiconductor - Diodes Division SMA6J6.5AHM3/61
- Part No.:
- SMA6J6.5AHM3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA6J6.5AHM3/61.pdf
- Description:
- TVS DIODE 6.5VWM 10.2VC DO214AC
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
SMA6J6.5AHM3/61 from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMA (DO-214AC) package, designed for clamping voltage transients on power and signal lines. It features a 6.5 V stand-off voltage (VWM), 7.2–7.96 V breakdown voltage (VBR at 10 mA), 10.2 V maximum clamping voltage at 58.8 A (10/1000 μs), 600 W peak pulse power rating, and operates across –55 °C to +150 °C junction temperature range. It protects MOSFETs and ICs in industrial power supplies.
For engineers reviewing the SMA6J6.5AHM3/61 datasheet, SMA6J6.5AHM3/61 pinout, SMA6J6.5AHM3/61 application, or SMA6J6.5AHM3/61 equivalent, this page delivers verified electrical parameters, thermal resistance (RθJA = 120 °C/W), polarity marking (cathode band), JEDEC-compliant MSL level 1 handling, and halogen-free RoHS-compliant construction per JESD201 Class 2 whisker test.
Technical Context
This TVS diode uses silicon avalanche junction technology to provide fast-response transient suppression with sub-nanosecond turn-on time. Its unidirectional polarity enables protection of DC-biased lines without reverse conduction during normal operation.
The device is characterized for 10/1000 μs and 8/20 μs surge waveforms, with dynamic resistance (RD) of 0.038 Ω enabling low-voltage clamping under high-current transients. Thermal design relies on PCB copper pad area (5.0 mm × 5.0 mm per terminal) to sustain 4 W power dissipation at TA = 50 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 6.5 V - Maximum continuous reverse operating voltage before leakage exceeds 100 μA; sets safe margin below circuit rail voltage. |
| VBR (min/max) | 7.2 V / 7.96 V at IT = 10 mA - Confirmed breakdown threshold ensures reliable triggering above VWM with defined tolerance. |
| VC at IPP | 10.2 V at 58.8 A (10/1000 μs) - Clamping voltage limits downstream component stress during standard lightning-surge events. |
| PPPM (10/1000 μs) | 600 W - Peak transient energy absorption capability under IEC 61000-4-5 long-duration surge conditions. |
| IFSM | 50 A - Non-repetitive forward surge current rating supports inrush or fault-current scenarios without bond-wire failure. |
| TJ max. | +150 °C - Maximum junction temperature enables use in high-ambient industrial environments with derated power. |
| RθJA | 120 °C/W - Thermal resistance defines required PCB copper area for thermal management at 4 W PD (TA = 50 °C). |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, halogen-free, RoHS-compliant, matte tin-plated leads, MSL level 1 (260 °C reflow peak), cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / transient return path | Connected to lower-potential side of protected line; completes clamping path during overvoltage events. |
| Cathode | Clamping node / surge sink | Marked with band; connected to higher-potential rail (e.g., VCC); conducts avalanche current to ground reference. |
Key Features
| Feature | Design Value |
|---|---|
| Unidirectional polarity | Enables DC-line protection without reverse leakage interference; avoids false triggering on AC-coupled signals. |
| Low-profile SMA package | 0.208" × 0.157" footprint with 0.074" height allows dense layout in space-constrained industrial modules. |
| MSL Level 1 rating | Supports standard SMT reflow without baking; compatible with automated placement and high-volume manufacturing. |
| Halogen-free & RoHS-compliant (M3 suffix) | Fulfills environmental compliance for global industrial and telecom equipment without compromising surge robustness. |
| 150 °C max junction temperature | Permits operation in sealed enclosures or near heat sources where ambient exceeds 85 °C. |
Applications
| Industrial Motor Drives | Telecom Power Supplies |
|---|---|
|
Use Scenario: Protection of gate drivers and bus voltage sense circuits against inductive kickback from IGBT switching. IC Role / Device Role / Timing Role: Transient voltage suppressor placed across DC bus or gate resistor network to clamp spikes <100 ns after onset. Use Value: Limits voltage overshoot to ≤10.2 V, preventing gate oxide rupture in 600 V IGBTs and ensuring >100 k-cycle reliability under repetitive 50 A surges. |
Use Scenario: Input-stage surge protection on -48 V telecom rectifier outputs exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Unidirectional TVS shunting 8/20 μs transients to chassis ground before reaching DC/DC converters. Use Value: Withstands 4000 W (8/20 μs) peak pulse power, meeting GR-1089-CORE Level 4 immunity requirements without derating. |
| Automotive Body Control Modules | Consumer Appliance Power Inputs |
|
Use Scenario: Reverse battery and load dump protection on 12 V microcontroller supply rails in BCMs. IC Role / Device Role / Timing Role: Clamps reverse polarity events and ISO 7637-2 Pulse 5a transients at input filter stage. Use Value: Survives 50 A IFSM single half-sine surge and maintains VWM = 6.5 V stability across –40 °C to +125 °C ambient. |
Use Scenario: Overvoltage suppression on AC-DC adapter primary-side rectifier outputs feeding SMPS controllers. IC Role / Device Role / Timing Role: Fast-acting avalanche diode absorbing switch-mode ringing and ESD from user interface lines. Use Value: 0.038 Ω dynamic resistance ensures clamping voltage stays within ±5 % of 10.2 V up to 58.8 A, preserving controller UVLO margins. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA6J6.5A-E3/61 | Same electrical specs but RoHS-compliant with lead-free finish only (not halogen-free); no JESD201 Class 2 whisker test certification. | Acceptable for non-harsh-environment consumer designs where whisker risk is not mandated. | Select SMA6J6.5AHM3/61 when halogen-free content and whisker resistance are required per IPC-J-STD-002B. |
| SMCJ6.5A-M3 | Higher 1500 W PPPM (10/1000 μs), DO-214AB (SMC) package, larger footprint (0.276" × 0.213"), RθJA = 35 °C/W. | Better suited for high-energy surges (>1000 W) where board space permits larger thermal mass. | Choose SMA6J6.5AHM3/61 for space-constrained layouts needing 600 W rating; choose SMCJ6.5A-M3 when thermal budget demands lower RθJA. |
Compared with SMA6J6.5A-E3/61, SMA6J6.5AHM3/61 adds halogen-free compliance and whisker resistance without sacrificing clamping performance; versus SMCJ6.5A-M3, it trades surge capacity and thermal efficiency for 40 % smaller PCB area and compatibility with fine-pitch SMT lines.
Availability
SMA6J6.5AHM3/61 is available at Aetrix Electronics and suitable for industrial motor drives, telecom power supplies, and automotive body control modules requiring stable component supply with full traceability and lifecycle continuity.
Supply support for SMA6J6.5AHM3/61 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, TVS devices, and optoelectronics with emphasis on reliability and ruggedness.
SMA6J6.5AHM3/61 belongs to Vishay's TRANSZORB® family of transient suppressors, engineered specifically for high-reliability industrial, telecom, and automotive surge protection where consistent clamping and long-term stability are critical.
FAQ
What is the clamping voltage of SMA6J6.5AHM3/61 under a 10/1000 μs surge?
The SMA6J6.5AHM3/61 has a maximum clamping voltage (VC) of 10.2 V at 58.8 A under a 10/1000 μs waveform. This value is measured per the manufacturer's test conditions and reflects the actual voltage seen by protected components during standardized surge events. The SMA6J6.5AHM3/61 achieves this with a dynamic resistance of 0.038 Ω, ensuring predictable voltage limiting across its rated current range.
Does SMA6J6.5AHM3/61 support automated SMT assembly?
Yes, SMA6J6.5AHM3/61 is qualified for automated surface-mount assembly with MSL level 1 per J-STD-020 and a maximum reflow peak temperature of 260 °C. Its SMA (DO-214AC) package features matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards. The SMA6J6.5AHM3/61 also passes JESD201 Class 2 whisker testing, making it suitable for high-reliability production lines.
What is the difference between the "M3" and "E3" suffixes in SMA6J6.5AHM3/61?
The "M3" suffix in SMA6J6.5AHM3/61 denotes halogen-free, RoHS-compliant construction with JESD201 Class 2 whisker resistance, while "E3" indicates RoHS-compliant but not halogen-free material. Both meet industrial-grade reliability, but SMA6J6.5AHM3/61 is specified for applications requiring halogen-free content and enhanced metallurgical stability-critical in sealed or high-temperature environments where whisker growth could cause field failures.
Can SMA6J6.5AHM3/61 be used for bidirectional transient protection?
No, SMA6J6.5AHM3/61 is a unidirectional TVS diode and is not rated for bidirectional surge suppression. Its electrical characteristics-including breakdown voltage, clamping behavior, and leakage current-are specified only for reverse-bias operation. For bidirectional protection, a dedicated bidirectional part such as SMA6J6.5CA must be selected; using SMA6J6.5AHM3/61 in AC-coupled or floating applications may result in improper clamping or device failure.
What PCB layout guidance applies to SMA6J6.5AHM3/61 for optimal thermal performance?
For rated 4 W power dissipation at TA = 50 °C, SMA6J6.5AHM3/61 requires minimum 5.0 mm × 5.0 mm copper pads per terminal, as specified in the Vishay datasheet. Trace width should be ≥0.5 mm to minimize series inductance during surge events. Avoid thermal relief on pads; use solid copper connections to internal ground/power planes. The SMA6J6.5AHM3/61 thermal resistance (RθJA = 120 °C/W) assumes this layout-reducing pad area increases junction temperature and risks premature thermal runaway.
SMA6J6.5AHM3/61 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 6.5V
- Voltage - Breakdown (Min):
- 7.2V
- Voltage - Clamping (Max) @ Ipp:
- 10.2V
- Current - Peak Pulse (10/1000µs):
- 58.8A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
SMA6J6.5AHM3/61 FAQ
1.How can I place an order for SMA6J6.5AHM3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA6J6.5AHM3/61 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 SMA6J6.5AHM3/61 reliable?
The price and inventory of SMA6J6.5AHM3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA6J6.5AHM3/61 is usually 5 days.
3.What payment methods are accepted for SMA6J6.5AHM3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA6J6.5AHM3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA6J6.5AHM3/61?
SMA6J6.5AHM3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA6J6.5AHM3/61 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 SMA6J6.5AHM3/61?
For technical support, including SMA6J6.5AHM3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA6J6.5AHM3/61 requirements.
6.How does Aetrix verify that SMA6J6.5AHM3/61 is sourced from the original manufacturer or authorized distributors?
All SMA6J6.5AHM3/61 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 SMA6J6.5AHM3/61 meets industry standards.
7.What is the process for return or replacement of SMA6J6.5AHM3/61?
All SMA6J6.5AHM3/61 units undergo pre-shipment inspection (PSI). If there is an issue with SMA6J6.5AHM3/61, 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 SMA6J6.5AHM3/61 part is unused and in its original packaging.
Return procedure for SMA6J6.5AHM3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMA6J6.5AHM3/61 Tags
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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