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Vishay General Semiconductor - Diodes Division SMA5J17CA-M3/61
- Part No.:
- SMA5J17CA-M3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J17CA-M3/61.pdf
- Description:
- TVS DIODE 17VWM 27.6VC DO214AC
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
SMA5J17CA-M3/61 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 17 V standoff voltage (VWM), 18.9–20.9 V breakdown range (VBR), 27.6 V clamping voltage (VC) at 18.1 A peak pulse current, and 500 W peak pulse power rating with 10/1000 µs waveform. It is used to protect MOSFETs, ICs, and sensor signal lines in automotive and industrial power supply interfaces.
For engineers reviewing the SMA5J17CA-M3/61 datasheet, SMA5J17CA-M3/61 pinout, SMA5J17CA-M3/61 application, or SMA5J17CA-M3/61 equivalent, key selection criteria include bidirectional clamping capability, 500 W surge handling, 17 V working voltage compatibility, thermal resistance (RθJA = 80 °C/W), and halogen-free RoHS-compliant construction per M3 suffix.
Technical Context
This device operates as a voltage-clamped crowbar during transients, leveraging an avalanche breakdown junction to divert surge energy away from protected circuitry. Its bidirectional symmetry ensures identical clamping behavior in both polarities, critical for AC-coupled or floating signal lines.
Designed for surface-mount automated assembly, it uses glass-passivated silicon die in a low-profile SMA package rated for 150 °C maximum junction temperature and compliant with J-STD-020 MSL Level 1 (260 °C reflow peak). It meets AEC-Q101 qualification when ordered with HE3/HM3 suffixes - not applicable to the M3/61 variant.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 17 V - Maximum continuous reverse operating voltage before leakage exceeds 1 μA; defines upper limit of normal signal swing. |
| VBR min/max | 18.9 V / 20.9 V at 1 mA test current - Ensures reliable triggering above VWM with margin against false conduction. |
| VC @ IPPM | 27.6 V at 18.1 A - Clamped voltage seen by protected circuit during 500 W transient; determines downstream component stress. |
| PPPM | 500 W (10/1000 µs) - Peak surge energy absorption capacity; enables protection against IEC 61000-4-5 Level 3/4 surges. |
| RθJA | 80 °C/W - Junction-to-ambient thermal resistance; requires ≥5.0 mm × 5.0 mm copper pad per terminal for full derating. |
| Package | SMA (DO-214AC) - Standardized SMD outline with 2.54 mm lead pitch; compatible with industry-standard pick-and-place and reflow profiles. |
| Construction | Halogen-free, RoHS-compliant (M3 suffix); matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, bidirectional device with no polarity marking - both terminals are electrically symmetric.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient current path | Either terminal serves as input/output for bidirectional surge conduction; no cathode band marking required. |
| Case (body) | Thermal and mechanical interface | Plastic body provides electrical isolation; copper pad area under terminals dominates thermal dissipation path. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Identical VBR, VC, and IPPM performance in both directions - eliminates need for polarity-aware layout on differential or AC lines. |
| Low incremental surge resistance | Enables tighter VC–VBR margin (27.6 V vs. 18.9 V) - reduces voltage overshoot during fast transients like ESD or inductive kick. |
| Fast response time | < 1.0 ps junction response - clamps within picoseconds of transient onset, protecting nanosecond-scale logic and analog front-ends. |
| MSL Level 1 rating | Rated for peak reflow temperature up to 260 °C - supports single-pass lead-free assembly without moisture sensitivity concerns. |
| High power density | 500 W in 2.5 mm × 4.5 mm footprint - delivers automotive-grade surge immunity without requiring board space expansion. |
Applications
| Automotive Power Line Protection | Industrial Sensor Signal Conditioning |
|---|---|
|
Use Scenario: Protecting 12 V battery-fed ECUs and body control modules from load dump and alternator ripple. IC Role / Device Role / Timing Role: Bidirectional TVS placed across power rail inputs to clamp ±100 V transients to safe levels. Use Value: Withstands 500 W surges while limiting clamped voltage to 27.6 V - prevents damage to 36 V-rated DC-DC converters and microcontrollers. |
Use Scenario: Shielding 4–20 mA current loop transmitters and analog sensor outputs from field-induced surges in factory automation. IC Role / Device Role / Timing Role: Placed differentially across signal pair to suppress common-mode transients without affecting DC accuracy. Use Value: Symmetrical clamping ensures no offset injection into precision analog paths; 1 μA leakage at 17 V preserves signal integrity. |
| Telecom Interface Protection | Consumer USB/Type-C Port Protection |
|
Use Scenario: Safeguarding RS-485 transceivers and Ethernet PHYs against lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: Installed at connector entry point to shunt induced common-mode energy before reaching line driver/receiver. Use Value: 27.6 V clamping aligns with 3.3 V/5 V transceiver absolute maximum ratings; DO-214AC footprint allows compact PCB placement near connectors. |
Use Scenario: Providing secondary-level overvoltage protection on VBUS and CC lines of USB Type-C ports in laptops and docking stations. IC Role / Device Role / Timing Role: Back-up clamping device after primary ESD array, handling higher-energy events like hot-plug inrush or cable coupling. Use Value: 500 W rating handles multi-pulse surge stress beyond IEC 61000-4-5; halogen-free M3 construction meets strict consumer product environmental requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J17CA-E3/61 | Same electrical specs and package; RoHS-compliant but not halogen-free (E3 vs. M3). | Preferred for commercial-grade applications where halogen content is unrestricted. | Select E3/61 if halogen-free requirement is absent and cost optimization is prioritized. |
| SMA6J17CA-M3/61 | 600 W PPPM rating (vs. 500 W), same VWM/VC, larger SMA package variant (DO-214AB). | Suitable where higher surge margin is needed and board space allows larger footprint. | Choose SMA6J17CA-M3/61 only if design requires >500 W surge headroom and DO-214AB layout is feasible. |
Compared with SMA5J17CA-E3/61, the M3/61 variant adds halogen-free compliance without sacrificing performance; versus SMA6J17CA-M3/61, it trades 100 W surge capacity for smaller DO-214AC footprint and lower thermal mass - critical for dense layouts and rapid transient response.
Availability
SMA5J17CA-M3/61 is available at Aetrix Electronics and suitable for automotive power line protection, industrial sensor signal conditioning, and telecom interface protection requiring stable component supply, consistent halogen-free compliance, and verified 500 W surge immunity.
Supply support for SMA5J17CA-M3/61 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, and protection devices with emphasis on reliability, power density, and automotive qualification.
The SMA5J series is engineered for high-power-density transient suppression in space-constrained environments, targeting automotive, industrial, and telecom systems where robustness against ISO 7637-2 and IEC 61000-4-5 threats is mandatory.
FAQ
What is the clamping voltage of the SMA5J17CA-M3/61 under maximum rated surge conditions?
The SMA5J17CA-M3/61 exhibits a maximum clamping voltage (VC) of 27.6 V when subjected to its peak pulse current (IPPM) of 18.1 A, measured using the standardized 10/1000 µs double-exponential waveform. This value is guaranteed across the full operating temperature range and defines the upper voltage limit imposed on protected circuitry during transient events. The SMA5J17CA-M3/61 maintains this clamping performance bidirectionally.
Is the SMA5J17CA-M3/61 suitable for automotive applications requiring AEC-Q101 qualification?
No, the SMA5J17CA-M3/61 is not AEC-Q101 qualified. It carries the M3 suffix indicating halogen-free RoHS compliance for commercial-grade use. For automotive applications requiring AEC-Q101, Vishay offers the SMA5J17CAHM3_A/H variant (with HM3 suffix and revision code), which undergoes additional stress testing and lot traceability per the AEC standard. The SMA5J17CA-M3/61 remains appropriate for non-automotive industrial and telecom designs.
How does the bidirectional nature of the SMA5J17CA-M3/61 affect its PCB layout compared to unidirectional TVS diodes?
The SMA5J17CA-M3/61 has no polarity marking and identical electrical characteristics in both directions, eliminating orientation constraints during placement. Unlike unidirectional TVS diodes that require cathode alignment toward the protected IC's supply rail, the SMA5J17CA-M3/61 can be mounted in either direction across differential pairs, AC lines, or floating buses without functional impact. This simplifies layout, reduces assembly errors, and supports automated optical inspection (AOI) without polarity verification.
What is the thermal derating behavior of the SMA5J17CA-M3/61 above 25 °C ambient temperature?
The SMA5J17CA-M3/61 follows linear thermal derating above 25 °C ambient, as defined in Figure 2 of its datasheet (Document Number: 88875). Its peak pulse power (PPPM) decreases by approximately 0.4% per °C rise, reaching zero at 150 °C junction temperature. To maintain full 500 W rating, the device must be mounted on minimum recommended 5.0 mm × 5.0 mm copper pads per terminal. Derating must be applied based on actual board layout and airflow - the SMA5J17CA-M3/61 itself does not include internal thermal shutdown.
Can the SMA5J17CA-M3/61 be used to replace a unidirectional SMA5J17A-M3/61 in an existing design?
Yes, the SMA5J17CA-M3/61 can replace the unidirectional SMA5J17A-M3/61 in most cases, provided the circuit does not rely on forward conduction (e.g., DC bias paths). The CA version matches the A version's VWM, VBR, VC, and PPPM in the reverse direction, and adds symmetrical clamping in the forward direction. However, forward leakage may differ slightly, and the absence of a cathode band means polarity-sensitive layouts must be verified. Always validate clamping behavior under actual surge conditions.
SMA5J17CA-M3/61 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 17V
- Voltage - Breakdown (Min):
- 18.9V
- Voltage - Clamping (Max) @ Ipp:
- 27.6V
- Current - Peak Pulse (10/1000µs):
- 18.1A
- 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)
SMA5J17CA-M3/61 FAQ
1.How can I place an order for SMA5J17CA-M3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J17CA-M3/61 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 SMA5J17CA-M3/61 reliable?
The price and inventory of SMA5J17CA-M3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J17CA-M3/61 is usually 5 days.
3.What payment methods are accepted for SMA5J17CA-M3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J17CA-M3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J17CA-M3/61?
SMA5J17CA-M3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J17CA-M3/61 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 SMA5J17CA-M3/61?
For technical support, including SMA5J17CA-M3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J17CA-M3/61 requirements.
6.How does Aetrix verify that SMA5J17CA-M3/61 is sourced from the original manufacturer or authorized distributors?
All SMA5J17CA-M3/61 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 SMA5J17CA-M3/61 meets industry standards.
7.What is the process for return or replacement of SMA5J17CA-M3/61?
All SMA5J17CA-M3/61 units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J17CA-M3/61, 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 SMA5J17CA-M3/61 part is unused and in its original packaging.
Return procedure for SMA5J17CA-M3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMA5J17CA-M3/61 Tags
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