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Vishay General Semiconductor - Diodes Division SMA5J5.0CA-M3/61
- Part No.:
- SMA5J5.0CA-M3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J5.0CA-M3/61.pdf
- Description:
- TVS DIODE 5VWM 9.2VC DO214AC
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
SMA5J5.0CA-M3/61 from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMA (DO-214AC) package, designed for robust overvoltage protection of sensitive electronics. It features a 5.0 V stand-off voltage (VWM), 6.4–7.07 V breakdown voltage (VBR) at 10 mA, 500 W peak pulse power (10/1000 µs), clamping voltage of 9.2 V at 54.3 A IPPM, and operates from –55 °C to +150 °C junction temperature - deployed on automotive sensor signal lines, industrial I/O ports, and USB interface protection circuits.
For engineers reviewing the SMA5J5.0CA-M3/61 datasheet, SMA5J5.0CA-M3/61 pinout, SMA5J5.0CA-M3/61 application, or SMA5J5.0CA-M3/61 equivalent, key selection criteria include bidirectional clamping capability, low clamping ratio (VC/VWM ≈ 1.84), halogen-free RoHS-compliant construction (M3 suffix), MSL Level 1 rating, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This bidirectional TVS diode uses a glass-passivated silicon junction to achieve sub-nanosecond response time and low incremental surge resistance. Its symmetrical avalanche structure ensures identical electrical characteristics in both polarities, with no polarity marking required on the SMA package.
The device complies with ANSI/IEEE C62.35 for transient suppression and is rated for 500 W peak pulse power under standardized 10/1000 µs waveform conditions. Thermal performance is characterized by RθJA = 80 °C/W and RθJL = 25 °C/W, enabling reliable operation when mounted per recommended pad layout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 5.0 V - Maximum continuous reverse operating voltage before conduction begins; defines safe signal line operating margin. |
| VBR min/max | 6.4 V / 7.07 V at IT = 10 mA - Confirmed breakdown threshold range ensuring predictable turn-on during transients. |
| VC @ IPPM | 9.2 V at 54.3 A - Clamped voltage during 500 W surge; determines maximum stress imposed on protected ICs. |
| PPPM | 500 W (10/1000 µs) - Peak surge energy handling capacity; validates suitability for IEC 61000-4-5 Level 3/4 threats. |
| TJ max | +150 °C - Maximum junction temperature; supports operation in under-hood automotive and industrial environments. |
| Package | SMA (DO-214AC) - Surface-mount package with 5.28 mm × 4.50 mm footprint; compatible with standard reflow profiles (peak 260 °C). |
| Compliance | Halogen-free, RoHS-compliant (M3 suffix); MSL Level 1 per J-STD-020 - enables high-yield automated assembly without moisture sensitivity concerns. |
Pinout & Package
SMA (DO-214AC) package: surface-mount, two-terminal, bidirectional device with no polarity marking; molded epoxy case meets UL 94 V-0; matte tin-plated leads solderable per J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient current path | Both terminals function identically; bidirectional conduction allows placement without orientation constraints on PCB. |
| Case (body) | Thermal and mechanical interface | Non-conductive epoxy body; thermal dissipation relies on copper pad area (0.2" × 0.2") per terminal as specified in derating curves. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Identical VBR and VC in both directions - eliminates need for polarity-aware layout and supports AC-coupled or floating signal lines. |
| Low clamping ratio | VC/VWM = 1.84 - minimizes voltage overshoot during ESD/EFT events, protecting 3.3 V and 5 V logic interfaces. |
| High surge current capability | IPPM = 54.3 A (10/1000 µs) - withstands repetitive lightning-induced surges in industrial fieldbus nodes. |
| Automated placement optimized | MSL Level 1, 260 °C peak reflow tolerance - supports high-throughput SMT lines without baking or special handling. |
| AEC-Q101 qualified variant available | HM3 suffix option - enables drop-in qualification path for automotive applications requiring stress-tested components. |
Applications
| Automotive Sensor Protection | Industrial RS-485 Interface |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed across differential signal pair or supply rail to shunt transients before reaching ASIC inputs. Use Value: Withstands 500 W surges while limiting clamped voltage to 9.2 V - preserving integrity of 5 V tolerant transceivers and avoiding latch-up in microcontrollers. |
Use Scenario: Safeguarding RS-485 transceivers in factory automation PLCs exposed to motor switching noise and ground bounce. IC Role / Device Role / Timing Role: Low-capacitance TVS placed between A/B lines and ground to suppress common-mode surges without distorting 10 Mbps data signals. Use Value: 9.2 V clamping ensures receiver input stays within absolute maximum ratings during 4 kV EFT bursts, maintaining communication uptime. |
| USB 2.0 Data Line Protection | Power Supply Input Clamp |
Use Scenario: Shielding USB D+/D– lines in embedded host devices against human-body-model (HBM) ESD and cable discharge events. IC Role / Device Role / Timing Role: Bidirectional TVS connected line-to-line to suppress differential transients while maintaining signal integrity up to 480 Mbps. Use Value: Sub-nanosecond response and <1 pF junction capacitance (per Fig. 4) prevent signal edge degradation and eye diagram closure. |
Use Scenario: Secondary overvoltage clamp on 5 V DC input rails of IoT gateways after primary fuse and MOV protection. IC Role / Device Role / Timing Role: Fast-acting secondary limiter that activates after upstream protection to prevent rail collapse during sustained overvoltage. Use Value: 5.0 V VWM aligns precisely with 5 V system rail; clamps at 9.2 V before downstream LDOs or PMICs exceed safe input limits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J5.0A-M3/61 | Unidirectional version; includes cathode band marking; VF = 3.5 V at 25 A forward current. | Requires correct polarity orientation; suitable only where DC bias direction is fixed (e.g., power rail to ground). | Select SMA5J5.0A-M3/61 only when circuit topology enforces unidirectional voltage stress and polarity is controlled. |
| SMBJ5.0CA-T | Same VWM/VBR/VC specs but in larger SMB (DO-214AA) package; higher thermal mass (RθJA = 60 °C/W vs. 80 °C/W). | Better power derating above 75 °C ambient; requires larger PCB area (4.58 mm × 3.94 mm vs. 4.50 mm × 5.28 mm). | Choose SMBJ5.0CA-T for thermally constrained designs needing >500 W surge margin at elevated temperatures. |
Compared with SMA5J5.0A-M3/61, the bidirectional SMA5J5.0CA-M3/61 removes layout polarity dependency and simplifies BOM management; versus SMBJ5.0CA-T, it trades thermal margin for space efficiency - making SMA5J5.0CA-M3/61 optimal for compact, cost-sensitive consumer and industrial modules.
Availability
SMA5J5.0CA-M3/61 is available at Aetrix Electronics and suitable for automotive sensor protection, industrial RS-485 interface hardening, and USB 2.0 data line ESD suppression requiring stable component supply across production lifecycles.
Supply support for SMA5J5.0CA-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 high-reliability diodes, MOSFETs, optoelectronics, and passive components for demanding industrial and automotive applications.
The SMA5J series is engineered specifically for high-power-density transient suppression in space-constrained SMT designs, targeting compliance with IEC 61000-4-2, -4-4, and -4-5 standards in automotive ECUs and industrial control units.
FAQ
What is the polarity configuration of SMA5J5.0CA-M3/61?
The SMA5J5.0CA-M3/61 is a bidirectional TVS diode with symmetrical avalanche characteristics in both directions. It has no polarity marking on the SMA (DO-214AC) package, allowing placement without orientation constraints. This distinguishes it from the unidirectional SMA5J5.0A-M3/61, which features a cathode band. The bidirectional nature makes SMA5J5.0CA-M3/61 ideal for AC-coupled or floating signal paths where voltage transients may occur in either polarity.
Does SMA5J5.0CA-M3/61 meet automotive qualification standards?
The SMA5J5.0CA-M3/61 itself is commercial-grade and halogen-free RoHS-compliant (M3 suffix), but not AEC-Q101 qualified. However, Vishay offers the functionally identical SMA5J5.0CAHM3_A/H variant - same electrical specs and SMA package - which is fully AEC-Q101 qualified for automotive use. Engineers requiring automotive qualification should specify the HM3 suffix version; SMA5J5.0CA-M3/61 remains suitable for industrial and consumer applications where AEC-Q101 is not mandated.
What is the maximum clamping voltage of SMA5J5.0CA-M3/61 under surge conditions?
The SMA5J5.0CA-M3/61 has a maximum clamping voltage (VC) of 9.2 V at its rated peak pulse current (IPPM) of 54.3 A, tested with a 10/1000 µs waveform. This value is guaranteed per the Vishay datasheet (Document Number: 88875, Rev. 09-Jan-2024) and represents the upper limit of voltage seen by protected circuitry during a full-rated surge event. The clamping ratio (VC/VWM = 1.84) confirms effective suppression for 5 V systems.
How does the thermal performance of SMA5J5.0CA-M3/61 affect PCB layout?
SMA5J5.0CA-M3/61 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 reliability under repeated surges, PCB layout must adhere to this pad size minimum - reducing pad area increases junction temperature and accelerates derating per Figure 2 in the datasheet. The device's RθJL of 25 °C/W also indicates lead-to-case conduction dominates heat transfer, reinforcing the need for adequate copper pour connection to each terminal.
Can SMA5J5.0CA-M3/61 be used in place of SMA5J5.0A-M3/61?
No - SMA5J5.0CA-M3/61 and SMA5J5.0A-M3/61 are not interchangeable without circuit review. SMA5J5.0CA-M3/61 is bidirectional with no polarity marking; SMA5J5.0A-M3/61 is unidirectional with a cathode band and forward voltage drop (VF = 3.5 V at 25 A). Substituting the bidirectional part in a unidirectional design may allow unintended conduction during normal DC bias. Always verify signal topology: use SMA5J5.0CA-M3/61 only where true bidirectional transient threat exists.
SMA5J5.0CA-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):
- 5V
- Voltage - Breakdown (Min):
- 6.4V
- Voltage - Clamping (Max) @ Ipp:
- 9.2V
- Current - Peak Pulse (10/1000µs):
- 54.3A
- 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)
SMA5J5.0CA-M3/61 FAQ
1.How can I place an order for SMA5J5.0CA-M3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J5.0CA-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 SMA5J5.0CA-M3/61 reliable?
The price and inventory of SMA5J5.0CA-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 SMA5J5.0CA-M3/61 is usually 5 days.
3.What payment methods are accepted for SMA5J5.0CA-M3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J5.0CA-M3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J5.0CA-M3/61?
SMA5J5.0CA-M3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J5.0CA-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 SMA5J5.0CA-M3/61?
For technical support, including SMA5J5.0CA-M3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J5.0CA-M3/61 requirements.
6.How does Aetrix verify that SMA5J5.0CA-M3/61 is sourced from the original manufacturer or authorized distributors?
All SMA5J5.0CA-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 SMA5J5.0CA-M3/61 meets industry standards.
7.What is the process for return or replacement of SMA5J5.0CA-M3/61?
All SMA5J5.0CA-M3/61 units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J5.0CA-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 SMA5J5.0CA-M3/61 part is unused and in its original packaging.
Return procedure for SMA5J5.0CA-M3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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