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Vishay General Semiconductor - Diodes Division SMA5J6.5CAHE3/5A
- Part No.:
- SMA5J6.5CAHE3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J6.5CAHE3/5A.pdf
- Description:
- TVS DIODE 6.5VWM 11.2VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:9,870
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Product details
Overview
SMA5J6.5CAHE3/5A from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMA (DO-214AC) package, designed for high-energy surge protection on signal and power lines. It features a 6.5 V stand-off voltage (VWM), 7.22–7.98 V breakdown voltage (VBR), 500 W peak pulse power (10/1000 µs), clamping voltage of 11.2 V at 44.6 A, and operates from –55 °C to +150 °C - deployed in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the SMA5J6.5CAHE3/5A datasheet, SMA5J6.5CAHE3/5A pinout, SMA5J6.5CAHE3/5A application, or SMA5J6.5CAHE3/5A equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, 500 W surge rating, low clamping ratio (VC/VWM ≈ 1.72), and compatibility with automated SMT assembly on 5.0 mm × 5.0 mm copper pads.
Technical Context
This device uses a glass-passivated silicon junction optimized for fast response (<1 ps) to ESD and lightning-induced transients. Its bidirectional symmetry ensures identical clamping behavior in both polarities, eliminating polarity marking requirements and simplifying layout in AC-coupled or differential signal paths.
Rated for 500 W peak pulse power under 10/1000 µs waveform and derated above 25 °C per Fig. 2, it achieves thermal resistance of 80 °C/W (junction-to-ambient) and 25 °C/W (junction-to-lead), enabling reliable operation in compact, thermally constrained PCB areas without forced airflow.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 6.5 V - Maximum continuous reverse operating voltage before conduction; defines safe signal swing margin for protected line. |
| VBR (min/max) | 7.22 V / 7.98 V at 10 mA - Confirmed breakdown threshold range ensuring predictable turn-on during overvoltage events. |
| VC @ IPPM | 11.2 V at 44.6 A - Clamped voltage during 500 W surge; determines maximum stress imposed on downstream ICs. |
| PPPM | 500 W (10/1000 µs) - Peak surge energy handling capacity; validates suitability for IEC 61000-4-5 Level 3/4 compliance designs. |
| TJ Range | –55 °C to +150 °C - Extended junction temperature range supports under-hood automotive and industrial ambient conditions. |
| Package | SMA (DO-214AC) - Surface-mount outline with 5.28 mm × 4.50 mm footprint; compatible with standard reflow profiles (MSL Level 1, 260 °C peak). |
Pinout & Package
Two-terminal bidirectional device in SMA (DO-214AC) package; no polarity marking. Terminals are matte tin-plated leads, solderable per J-STD-002 and JESD 22-B102, with MSL Level 1 moisture sensitivity rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient current path | Identical bidirectional conduction; either terminal serves as input/output - no orientation required during placement. |
| Case (cathode band absent) | Thermal and mechanical interface | Exposed metal slug provides primary heat dissipation path to PCB copper; requires minimum 5.0 mm × 5.0 mm pad per terminal. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD robustness - enables use in ADAS sensors and body control modules. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ISO 7637-2 pulse 1/2a), improving protection margin for 3.3 V/5 V logic interfaces. |
| Glass passivated junction | Enhances long-term stability and humidity resistance versus epoxy-passivated alternatives - critical for industrial field-deployed equipment. |
| MSL Level 1 rating | Allows unlimited floor life and standard reflow processing without baking - reduces manufacturing overhead in high-volume SMT lines. |
Applications
| Automotive Sensor Protection | Industrial I/O Port Protection |
|---|---|
Use Scenario: Protecting CAN FD and LIN bus transceivers from load dump and inductive switching transients in engine control units. IC Role / Device Role / Timing Role: Bidirectional clamping element placed directly at connector entry point, shunting surge energy to ground before reaching PHY layer. Use Value: Maintains signal integrity under 500 W surges while preserving <11.2 V clamping level - prevents latch-up in 5 V tolerant transceivers. |
Use Scenario: Safeguarding 24 V PLC digital input channels against field-wiring induced surges and relay coil flyback. IC Role / Device Role / Timing Role: Primary front-end TVS on isolated input stage, coordinated with series impedance and optocoupler input. Use Value: Withstands repeated 10/1000 µs surges up to 44.6 A without degradation - extends maintenance interval in factory automation systems. |
| Consumer USB Interface Protection | Telecom Line Card Surge Suppression |
Use Scenario: Shielding USB 2.0 D+/D– lines in portable medical devices from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance (typ. <100 pF at 0 V) bidirectional clamp placed adjacent to USB connector. Use Value: Delivers <11.2 V clamping at 44.6 A while adding negligible signal distortion - preserves eye diagram integrity at 480 Mbps. |
Use Scenario: Secondary-level surge protection on POTS line interfaces in VoIP gateways exposed to lightning-induced longitudinal surges. IC Role / Device Role / Timing Role: Back-to-back configuration with series impedance to meet GR-1089-CORE Level 3 requirements. Use Value: 500 W rating enables coordination with upstream GDTs - achieves full 6 kV/3 kA common-mode surge immunity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional TVS protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J6.5CAHM3/5A | Halogen-free, RoHS-compliant variant with identical electrical specs and AEC-Q101 qualification. | No functional difference; selected where halogen-free material compliance is mandated by OEM or regional regulation. | Choose SMA5J6.5CAHM3/5A when environmental compliance (e.g., JEDEC J-STD-204) supersedes cost or sourcing priority. |
| SMC5J6.5CAHE3/5A | Same VWM/VBR/VC, but in larger SMC (DO-214AB) package with 1500 W PPPM rating and lower RθJA (40 °C/W). | Used where higher surge energy handling or improved thermal performance is required - e.g., main power rail protection. | Choose SMC5J6.5CAHE3/5A only if board space allows larger footprint and 1500 W rating is explicitly needed. |
Compared with SMA5J6.5CAHE3/5A, SMA5J6.5CAHM3/5A offers identical protection performance with halogen-free construction, while SMC5J6.5CAHE3/5A trades compact size for 3× higher surge power and better thermal dissipation - selection depends strictly on footprint constraints and system-level surge test requirements.
Availability
SMA5J6.5CAHE3/5A is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O protection, and telecom line card surge suppression requiring stable component supply across multi-year production cycles.
Supply support for SMA5J6.5CAHE3/5A 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 optimization.
The SMA5J series targets high-power-density transient suppression in space-constrained, high-reliability environments - particularly automotive, industrial, and communications infrastructure where AEC-Q101 qualification and 500 W surge capability are mandatory.
FAQ
What is the polarity configuration of SMA5J6.5CAHE3/5A?
SMA5J6.5CAHE3/5A is a bidirectional TVS diode with symmetrical anode/cathode terminals and no polarity marking. Its electrical characteristics apply identically in both directions, making it suitable for AC signal lines, differential buses like CAN, and ungrounded interfaces where polarity cannot be guaranteed during installation or operation.
Does SMA5J6.5CAHE3/5A meet automotive qualification standards?
Yes, SMA5J6.5CAHE3/5A carries AEC-Q101 qualification, verified through stress tests including high-temperature reverse bias, temperature cycling, and ESD robustness. The "HE3" suffix explicitly denotes RoHS-compliant and AEC-Q101 qualified construction, enabling direct use in automotive ECUs, ADAS sensors, and body electronics without additional qualification effort.
What is the maximum clamping voltage for SMA5J6.5CAHE3/5A under surge conditions?
The maximum clamping voltage (VC) for SMA5J6.5CAHE3/5A is 11.2 V, measured at its peak pulse current (IPPM) of 44.6 A under the standardized 10/1000 µs waveform. This value defines the upper voltage limit imposed on protected circuitry during worst-case surge events and is confirmed in the Vishay datasheet Document Number 88875, Table on page 2.
How does the SMA5J6.5CAHE3/5A package compare to SMC or SMB variants?
SMA5J6.5CAHE3/5A uses the SMA (DO-214AC) package - smaller than SMC (DO-214AB) and larger than SMB (DO-214AA). Its 5.28 mm × 4.50 mm footprint delivers 500 W surge capability in minimal area, whereas SMC offers 1500 W in a larger outline and SMB typically supports ≤400 W. Thermal resistance is 80 °C/W (junction-to-ambient), higher than SMC's 40 °C/W but sufficient for most board-level protection roles.
Is SMA5J6.5CAHE3/5A compatible with lead-free reflow processes?
Yes, SMA5J6.5CAHE3/5A is rated for MSL Level 1 per J-STD-020 and supports peak reflow temperatures up to 260 °C. Its matte tin-plated leads comply with J-STD-002 and JESD 22-B102 solderability standards, and the molding compound meets UL 94 V-0 flammability requirements - making it fully compatible with standard lead-free SAC305 reflow profiles.
SMA5J6.5CAHE3/5A 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:
- -
- Bidirectional Channels:
- 1
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
SMA5J6.5CAHE3/5A FAQ
1.How can I place an order for SMA5J6.5CAHE3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J6.5CAHE3/5A 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 SMA5J6.5CAHE3/5A reliable?
The price and inventory of SMA5J6.5CAHE3/5A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J6.5CAHE3/5A is usually 5 days.
3.What payment methods are accepted for SMA5J6.5CAHE3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J6.5CAHE3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J6.5CAHE3/5A?
SMA5J6.5CAHE3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J6.5CAHE3/5A 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 SMA5J6.5CAHE3/5A?
For technical support, including SMA5J6.5CAHE3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J6.5CAHE3/5A requirements.
6.How does Aetrix verify that SMA5J6.5CAHE3/5A is sourced from the original manufacturer or authorized distributors?
All SMA5J6.5CAHE3/5A 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 SMA5J6.5CAHE3/5A meets industry standards.
7.What is the process for return or replacement of SMA5J6.5CAHE3/5A?
All SMA5J6.5CAHE3/5A units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J6.5CAHE3/5A, 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 SMA5J6.5CAHE3/5A part is unused and in its original packaging.
Return procedure for SMA5J6.5CAHE3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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