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Vishay General Semiconductor - Diodes Division SMA5J6.5CA-M3/5A
- Part No.:
- SMA5J6.5CA-M3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J6.5CA-M3/5A.pdf
- Description:
- TVS DIODE 6.5VWM 11.2VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:6,505
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Product details
Overview
SMA5J6.5CA-M3/5A from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMA (DO-214AC) package, designed for clamping ESD and surge transients on signal/power lines. It features 6.5 V stand-off voltage (VWM), 7.22–7.98 V breakdown voltage (VBR) at 10 mA, 500 W peak pulse power (10/1000 μs), 44.6 A peak pulse current (IPPM), and clamps to ≤11.2 V at rated surge. Used in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the SMA5J6.5CA-M3/5A datasheet, SMA5J6.5CA-M3/5A pinout, SMA5J6.5CA-M3/5A application, or SMA5J6.5CA-M3/5A equivalent, key selection criteria include bidirectional polarity, 500 W surge rating, 11.2 V clamping voltage at 44.6 A, halogen-free RoHS compliance (M3 suffix), and AEC-Q101 qualification eligibility via HM3 variant.
Technical Context
This TVS diode operates symmetrically in both directions due to its bidirectional construction, enabling protection of AC-coupled or differential signal paths without polarity concerns. Its glass-passivated junction ensures stable breakdown behavior and low leakage (<500 μA at VWM).
Designed for surface-mount automated assembly, it meets MSL Level 1 (260 °C reflow peak) and delivers low incremental surge resistance for effective clamping during fast transients (e.g., ISO 7637-2 pulse 1/2a/5a). Thermal resistance is 80 °C/W junction-to-ambient on standard 5.0 mm × 5.0 mm copper pads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 6.5 V - Maximum continuous reverse operating voltage before clamping begins; defines safe signal swing range. |
| VBR min/max | 7.22 V / 7.98 V at 10 mA - Confirmed breakdown window ensures predictable turn-on across production lots. |
| VC @ IPPM | ≤11.2 V at 44.6 A - Clamping voltage under full 500 W surge; determines protected circuit's maximum stress level. |
| PPPM | 500 W (10/1000 μs) - Sustains high-energy transients common in automotive load-dump and inductive switching events. |
| Package | SMA (DO-214AC) - Industry-standard 2-pin SMD outline with 5.28 mm length, 4.50 mm width, 2.29 mm height; compatible with JEDEC MS-013. |
| Compliance | Halogen-free, RoHS-compliant (M3 suffix); AEC-Q101 qualified variants available (HM3 suffix). |
Pinout & Package
Two-terminal device in SMA (DO-214AC) package; no polarity marking for bidirectional operation. Terminals are matte tin-plated, solderable per J-STD-002 and JESD 22-B102. Mounting requires 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per lead for rated thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient conduction path | Both terminals function identically; bidirectional clamping occurs regardless of voltage polarity applied. |
| Case (body) | Thermal and mechanical interface | Plastic body provides UL 94 V-0 flammability rating; no electrical connection; serves as primary heat sink interface. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC signals, differential buses (e.g., RS-485, CAN), and ungrounded power rails without polarity constraints. |
| 500 W peak pulse power | Withstands automotive-level surges including ISO 7637-2 Pulse 5a (load dump) and IEC 61000-4-5 Combination Wave (10/1000 μs) up to 44.6 A. |
| Glass-passivated junction | Ensures stable VBR over temperature and lifetime, low leakage (<500 μA), and immunity to humidity-induced parameter drift. |
| MSL Level 1 rating | Supports standard Pb-free reflow profiles (peak 260 °C) without preconditioning; eliminates moisture sensitivity handling overhead. |
Applications
| Automotive Sensor Protection | Industrial I/O Port Protection |
|---|---|
Use Scenario: Protecting analog output lines (e.g., 0–5 V throttle position sensor) from load-dump transients and ESD in engine control modules. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed between signal line and ground, absorbing energy before it reaches downstream ADC or op-amp input. Use Value: Limits voltage excursion to ≤11.2 V during 44.6 A surge, preserving signal integrity and preventing latch-up in 5 V rail systems. |
Use Scenario: Safeguarding 24 V PLC digital input channels against field-wiring induced surges and contact bounce transients. IC Role / Device Role / Timing Role: Standoff-rated TVS (6.5 V VWM) used in series with current-limiting resistor on 24 V inputs to suppress >1 kV spikes. Use Value: Clamps transients within 1 ns response time while maintaining <500 μA leakage at 6.5 V, ensuring reliable logic-level detection. |
| Telecom Line Interface | Consumer USB Port ESD Protection |
Use Scenario: Shielding RS-485 transceiver pins (A/B) in base station backhaul equipment from lightning-induced surges on long cable runs. IC Role / Device Role / Timing Role: Differential-mode TVS pair (one per line) referenced to common ground, providing symmetrical clamping on balanced data lines. Use Value: Matches bidirectional nature of RS-485 signaling; 11.2 V clamping prevents transceiver damage without distorting differential voltage margins. |
Use Scenario: Adding secondary surge protection on VBUS and D+/D− lines of USB 2.0 ports in smart home hubs exposed to user-handling ESD. IC Role / Device Role / Timing Role: Low-capacitance (typ. 1000 pF at 0 V) bidirectional clamp placed after primary ESD array to handle higher-energy events. Use Value: Handles 500 W surges beyond IEC 61000-4-2 ±15 kV air discharge, complementing low-capacitance ESD diodes without signal degradation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J6.5CA-E3/5A | Same electrical specs; RoHS-compliant but not halogen-free (E3 vs. M3). | Preferred for commercial-grade non-automotive designs where halogen content is unrestricted. | Select when halogen-free requirement is absent and cost optimization is prioritized. |
| SMA5J6.5CAHM3/5A | Identical electrical and mechanical specs; adds AEC-Q101 qualification and extended temperature validation (-55 °C to +150 °C). | Required for automotive ECUs, ADAS sensors, and other mission-critical vehicle subsystems. | Choose for automotive applications demanding certified reliability and extended lifetime validation. |
Compared with SMA5J6.5CA-M3/5A, the E3 variant offers identical surge performance at lower material cost but lacks halogen-free compliance, while the HM3 variant adds AEC-Q101 qualification for automotive deployment-neither is pin-compatible drop-in replacements without verifying qualification and material requirements.
Availability
SMA5J6.5CA-M3/5A is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial programmable logic controller (PLC) I/O protection, and telecom line interface circuits requiring stable component supply and halogen-free compliance.
Supply support for SMA5J6.5CA-M3/5A 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 high-reliability, high-power-density solutions.
The SMA5J series is engineered for high-energy transient suppression in space-constrained surface-mount applications, targeting automotive, industrial, and telecom systems where robustness and automated assembly compatibility are critical.
FAQ
What is the clamping voltage of the SMA5J6.5CA-M3/5A under full-rated surge current?
The SMA5J6.5CA-M3/5A clamps to a maximum of 11.2 V when subjected to its rated peak pulse current of 44.6 A (10/1000 μs waveform). This value is measured at the device terminals under standardized test conditions with 0.2" × 0.2" copper pads and is guaranteed across the operating temperature range. The SMA5J6.5CA-M3/5A achieves this clamping performance while maintaining low dynamic impedance, making it suitable for protecting 5 V and 3.3 V logic interfaces.
Is the SMA5J6.5CA-M3/5A suitable for automotive applications?
The SMA5J6.5CA-M3/5A itself is halogen-free and RoHS-compliant but not AEC-Q101 qualified. However, the pin-identical SMA5J6.5CAHM3/5A variant carries full AEC-Q101 qualification. For automotive use, designers must specify the HM3 suffix version; the SMA5J6.5CA-M3/5A is appropriate for non-automotive industrial or consumer applications where AEC-Q101 is not mandated.
How does the bidirectional design of the SMA5J6.5CA-M3/5A affect its circuit placement?
The SMA5J6.5CA-M3/5A has no polarity marking and functions identically in both directions, allowing placement between any two nodes needing transient suppression-such as across differential pairs (RS-485 A/B), AC signal lines, or ungrounded power rails. Unlike unidirectional TVS diodes, the SMA5J6.5CA-M3/5A eliminates orientation errors during automated assembly and supports symmetrical protection schemes without additional components.
What is the thermal resistance of the SMA5J6.5CA-M3/5A, and how does it impact layout?
The SMA5J6.5CA-M3/5A has a typical junction-to-ambient thermal resistance (RθJA) of 80 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. To maintain rated 500 W surge capability, PCB layout must provide these minimum pad dimensions and avoid excessive trace narrowing. Reducing pad size increases junction temperature, derating surge current per Figure 2 in the Vishay datasheet 88875.
Does the SMA5J6.5CA-M3/5A meet industry surge immunity standards?
Yes-the SMA5J6.5CA-M3/5A is rated for 500 W peak pulse power using the 10/1000 μs waveform defined in IEC 61000-4-5 and ANSI/IEEE C62.35. Its 44.6 A IPPM and 11.2 V VC enable compliance with Level 4 (4 kV line-earth, 2 kV line-line) of IEC 61000-4-5 when properly integrated with series impedance. It also supports ISO 7637-2 Pulse 1 (inductive switch-off) and Pulse 5a (load dump) in automotive environments when paired with appropriate filtering.
SMA5J6.5CA-M3/5A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
SMA5J6.5CA-M3/5A FAQ
1.How can I place an order for SMA5J6.5CA-M3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J6.5CA-M3/5A 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 SMA5J6.5CA-M3/5A reliable?
The price and inventory of SMA5J6.5CA-M3/5A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J6.5CA-M3/5A is usually 5 days.
3.What payment methods are accepted for SMA5J6.5CA-M3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J6.5CA-M3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J6.5CA-M3/5A?
SMA5J6.5CA-M3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J6.5CA-M3/5A 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 SMA5J6.5CA-M3/5A?
For technical support, including SMA5J6.5CA-M3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J6.5CA-M3/5A requirements.
6.How does Aetrix verify that SMA5J6.5CA-M3/5A is sourced from the original manufacturer or authorized distributors?
All SMA5J6.5CA-M3/5A 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 SMA5J6.5CA-M3/5A meets industry standards.
7.What is the process for return or replacement of SMA5J6.5CA-M3/5A?
All SMA5J6.5CA-M3/5A units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J6.5CA-M3/5A, 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 SMA5J6.5CA-M3/5A part is unused and in its original packaging.
Return procedure for SMA5J6.5CA-M3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMA5J6.5CA-M3/5A Tags
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