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Vishay General Semiconductor - Diodes Division SMA5J6.5AHM3/I
- Part No.:
- SMA5J6.5AHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J6.5AHM3/I.pdf
- Description:
- TVS DIODE 6.5VWM 11.2VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:7,658
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Product details
Overview
SMA5J6.5AHM3/I from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMA (DO-214AC) package, designed for high-energy surge protection on DC power rails and signal lines. It features 6.5 V stand-off voltage (VWM), 7.22–7.98 V breakdown voltage (VBR), 11.2 V clamping voltage at 44.6 A peak pulse current, and 500 W peak pulse power rating with 10/1000 µs waveform. Used in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the SMA5J6.5AHM3/I datasheet, SMA5J6.5AHM3/I pinout, SMA5J6.5AHM3/I application, or SMA5J6.5AHM3/I equivalent, key selection criteria include clamping performance under 44.6 A surge, thermal resistance (RθJA = 80 °C/W), AEC-Q101 qualification status, and halogen-free RoHS compliance per HM3 suffix.
Technical Context
This TVS diode operates as a unidirectional clamping device with cathode-band polarity marking, leveraging glass-passivated junction technology for stable avalanche behavior. Its low incremental surge resistance ensures minimal voltage overshoot during fast transients, and it meets MSL level 1 per J-STD-020 with 260 °C reflow peak tolerance.
The device is rated for -55 °C to +150 °C operating junction temperature and delivers consistent clamping up to 11.2 V at 44.6 A (10/1000 µs), with reverse leakage limited to 500 µA at 6.5 V. It is not intended for bidirectional use - bidirectional variants carry "CA" suffix (e.g., SMA5J6.5CA).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 6.5 V - maximum continuous reverse operating voltage before clamping begins |
| VBR min/max | 7.22 V / 7.98 V at 10 mA - guaranteed avalanche initiation range under standardized test current |
| VC @ IPPM | 11.2 V at 44.6 A - clamped voltage during 500 W surge, defining worst-case overvoltage seen by protected circuit |
| PPPM | 500 W - peak pulse power handling capability with 10/1000 µs waveform, critical for IEC 61000-4-5 compliance margin |
| RθJA | 80 °C/W - junction-to-ambient thermal resistance on standard 5.0 mm × 5.0 mm copper pads, determines derating above 25 °C |
| TJ max | +150 °C - absolute maximum junction temperature, sets upper limit for thermal design and reliability modeling |
| Package | SMA (DO-214AC) - surface-mount outline with 2.54 mm lead pitch, compatible with automated placement and IR reflow |
Pinout & Package
Package: SMA (DO-214AC), molded plastic case with matte tin-plated leads, UL 94 V-0 rated, polarity indicated by cathode band on one end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., ground or return path) in unidirectional clamp configuration |
| Cathode (banded end) | Avalanche clamping terminal | Connected to protected line (e.g., 6.5 V rail); conducts when reverse voltage exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable, repeatable avalanche characteristics across temperature and lifetime, reducing parameter drift |
| AEC-Q101 qualified (HM3 suffix) | Validated for automotive-grade reliability including HTOL, TC, and ESD testing per stress test plan |
| Halogen-free & RoHS-compliant | Meets JEDEC J-STD-609A Class 1 moisture sensitivity and environmental compliance for global manufacturing |
| Low profile SMA package | Height ≤ 2.29 mm enables compact layout in space-constrained modules such as ADAS ECUs and motor controllers |
| MSL Level 1 rating | Unlimited floor life at ≤30 °C/60% RH, eliminating bake requirements prior to SMT assembly |
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 ISO 7637-2 pulses in engine control units. IC Role / Device Role: Unidirectional TVS placed between sensor supply rail and ground to clamp transients before they reach ASIC input pins. Use Value: Limits voltage excursion to ≤11.2 V during 44.6 A surge, preserving integrity of 6.5 V LDO-regulated sensor domains without crowbar action. | Use Scenario: Safeguarding digital input modules against field-wiring induced surges (e.g., relay coil flyback, lightning-induced coupling on 24 V DC inputs). IC Role / Device Role: Standoff-clamp TVS on each channel's input node, coordinated with series impedance to meet IEC 61000-4-4/5 immunity levels. Use Value: Delivers 500 W surge handling with <1 ns response time, enabling robust 24 V industrial input designs compliant with EN 61000-6-2. |
| Consumer Power Adapter Output | Telecom DC Power Distribution |
Use Scenario: Secondary-side overvoltage suppression on USB-C PD or AC/DC adapter outputs exposed to hot-plug and cable discharge events. IC Role / Device Role: Final-stage clamping element downstream of DC-DC converter, absorbing residual transients before connector interface. Use Value: Clamps to 11.2 V at full 44.6 A rating, protecting downstream USB-PD controllers rated for ≤20 V absolute maximum input. | Use Scenario: Board-level protection of 48 V telecom power feeds (e.g., PoE++ midspan, base station backplanes) against inductive switching noise. IC Role / Device Role: Distributed TVS on power entry points and intermediate distribution nodes to localize surge energy dissipation. Use Value: Enables parallel placement with low RθJL (25 °C/W) for thermal sharing across multiple devices, supporting sustained 48 V system uptime. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J6.5AHE3/I | Same electrical specs; RoHS-compliant but not halogen-free; lacks AEC-Q101 qualification | Suitable for commercial/industrial use only; not approved for automotive under hood or chassis locations | Select when halogen-free content or automotive qualification is not required; lower cost alternative |
| SMA6J6.5A-M3 | 600 W PPPM rating (vs. 500 W); same VWM/VBR/VC; identical SMA package and pinout | Higher surge margin for systems requiring IEC 61000-4-5 Level 4 compliance without layout change | Choose when additional surge headroom is needed and board space/layout cannot be modified |
Compared with SMA5J6.5AHM3/I, SMA5J6.5AHE3/I trades halogen-free content and AEC-Q101 for cost savings, while SMA6J6.5A-M3 offers 20 % higher pulse power in the same footprint - both require no PCB redesign but differ in compliance scope and surge capacity.
Availability
SMA5J6.5AHM3/I is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and telecom 48 V power distribution systems requiring stable component supply, halogen-free compliance, and AEC-Q101 validation.
Supply support for SMA5J6.5AHM3/I 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, power density, and automotive qualification.
The SMA5J series is engineered for high-power-density transient suppression in harsh environments, targeting automotive, industrial, and telecom applications where compact size, AEC-Q101 compliance, and repeatable clamping are mandatory.
FAQ
What is the clamping voltage of the SMA5J6.5AHM3/I under maximum surge conditions?
The SMA5J6.5AHM3/I clamps to 11.2 V at its rated peak pulse current of 44.6 A using the standard 10/1000 µs waveform. This value is measured under defined test conditions (TA = 25 °C, mounted on 5.0 mm × 5.0 mm copper pads) and represents the maximum voltage imposed on the protected circuit during surge events. The SMA5J6.5AHM3/I maintains this clamping performance across its specified operating temperature range.
Is the SMA5J6.5AHM3/I suitable for automotive applications?
Yes, the SMA5J6.5AHM3/I is AEC-Q101 qualified and carries the HM3 suffix indicating halogen-free, RoHS-compliant construction validated for automotive use. It is rated for junction temperatures from -55 °C to +150 °C and meets MSL Level 1 for reflow compatibility. The SMA5J6.5AHM3/I is commonly deployed in engine control units, body electronics, and ADAS sensor modules where transient immunity is critical.
How does the HM3 suffix differ from the HE3 suffix in the SMA5J6.5A family?
The HM3 suffix on SMA5J6.5AHM3/I denotes halogen-free, RoHS-compliant, and AEC-Q101 qualified construction, whereas the HE3 suffix (e.g., SMA5J6.5AHE3/I) indicates RoHS-compliance and AEC-Q101 qualification but not halogen-free content. Both share identical electrical specifications and package dimensions, but HM3 meets stricter environmental mandates for automotive Tier 1 suppliers requiring halogen-free materials.
What is the reverse leakage current of the SMA5J6.5AHM3/I at its stand-off voltage?
The SMA5J6.5AHM3/I exhibits a maximum reverse leakage current (ID) of 500 µA at its stand-off voltage of 6.5 V, measured at TA = 25 °C. This low leakage ensures minimal power loss in standby operation and avoids false triggering in high-impedance sensing circuits. Leakage remains within specification up to +125 °C, with gradual increase governed by junction temperature.
Can the SMA5J6.5AHM3/I be used in bidirectional configurations?
No, the SMA5J6.5AHM3/I is a unidirectional TVS diode, identifiable by its cathode band marking. Bidirectional operation requires the "CA" suffix variant (e.g., SMA5J6.5CA), which has symmetrical breakdown in both polarities. Using SMA5J6.5AHM3/I in reverse-biased configurations beyond its specified VWM risks premature conduction or failure; always verify polarity alignment in schematic and layout.
SMA5J6.5AHM3/I 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):
- 6.5V
- Voltage - Breakdown (Min):
- 7.22V
- Voltage - Clamping (Max) @ Ipp:
- 11.2V
- Current - Peak Pulse (10/1000µs):
- 44.6A
- Power - Peak Pulse:
- 500W
- 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)
SMA5J6.5AHM3/I FAQ
1.How can I place an order for SMA5J6.5AHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J6.5AHM3/I 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 SMA5J6.5AHM3/I reliable?
The price and inventory of SMA5J6.5AHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J6.5AHM3/I is usually 5 days.
3.What payment methods are accepted for SMA5J6.5AHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J6.5AHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J6.5AHM3/I?
SMA5J6.5AHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J6.5AHM3/I 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 SMA5J6.5AHM3/I?
For technical support, including SMA5J6.5AHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J6.5AHM3/I requirements.
6.How does Aetrix verify that SMA5J6.5AHM3/I is sourced from the original manufacturer or authorized distributors?
All SMA5J6.5AHM3/I 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 SMA5J6.5AHM3/I meets industry standards.
7.What is the process for return or replacement of SMA5J6.5AHM3/I?
All SMA5J6.5AHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J6.5AHM3/I, 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 SMA5J6.5AHM3/I part is unused and in its original packaging.
Return procedure for SMA5J6.5AHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMA5J6.5AHM3/I Tags
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