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Vishay General Semiconductor - Diodes Division SMA5J5.0CAHM3_A/I
- Part No.:
- SMA5J5.0CAHM3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J5.0CAHM3_A/I.pdf
- Description:
- TVS DIODE 5VWM 9.2VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:7,237
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Product details
Overview
SMA5J5.0CAHM3_A/I 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 5.0 V stand-off voltage (VWM), 6.4–7.07 V breakdown voltage (VBR), 500 W peak pulse power (PPPM), clamping voltage of 9.2 V at 54.3 A IPPM, and operates from –55 °C to +150 °C - used in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the SMA5J5.0CAHM3_A/I datasheet, SMA5J5.0CAHM3_A/I pinout, SMA5J5.0CAHM3_A/I application, or SMA5J5.0CAHM3_A/I equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification (HM3 suffix), halogen-free RoHS compliance, and compatibility with 10/1000 µs surge waveforms in space-constrained PCB layouts.
Technical Context
This device functions as a voltage-clamping protector that responds within picoseconds to transients induced by inductive switching or ESD events. Its glass-passivated junction ensures stable VBR tolerance and low leakage (<800 µA at VWM), while the bidirectional architecture enables symmetrical suppression on AC-coupled or floating lines without polarity concerns.
The SMA5J5.0CAHM3_A/I is rated for 500 W peak pulse power under 10/1000 µs waveform conditions, with thermal resistance RθJA = 80 °C/W and RθJL = 25 °C/W. Its MSL Level 1 rating (260 °C reflow peak) and JESD201 Class 2 whisker resistance support automated SMT assembly in high-reliability production environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 5.0 V - maximum reverse stand-off voltage before clamping begins; defines operating margin for 5 V logic/sensor rails |
| VBR min/max | 6.4 V / 7.07 V at 10 mA - tight breakdown window ensures predictable turn-on across temperature and unit variation |
| VC @ IPPM | 9.2 V at 54.3 A - clamping voltage limits downstream IC stress during 500 W surge events |
| PPPM | 500 W - peak pulse power handling per 10/1000 µs waveform; supports IEC 61000-4-5 Level 4 immunity |
| TJ max | +150 °C - extended junction temperature rating enables use in under-hood automotive and industrial enclosures |
| Package | SMA (DO-214AC) - surface-mount outline with 5.28 mm × 4.50 mm footprint and 2.29 mm height for high-density routing |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
| RoHS | Halogen-free, RoHS-compliant (HM3 suffix) - meets IPC-1752A material declaration and environmental compliance requirements |
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 JESD22-B102, with 0.074" (1.88 mm) minimum pad width recommended per Vishay mounting layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional surge path | No defined anode/cathode; terminals interchangeable - enables placement on differential or AC lines without orientation check |
| Case (body) | Thermal and mechanical interface | Plastic-molded DO-214AC body provides UL 94 V-0 flammability rating and 25 °C/W junction-to-lead thermal path |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled, floating, or differential signal paths without polarity constraints |
| AEC-Q101 qualification (HM3) | Validated for automotive applications including engine control modules, ADAS sensors, and infotainment power rails |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ISO 7637-2 pulse 1/2a/5a), improving system-level robustness |
| MSL Level 1, 260 °C peak | Supports lead-free reflow without preconditioning; eliminates moisture-related popcorning risk in high-volume SMT lines |
| Glass-passivated junction | Ensures long-term VBR stability and low leakage drift over 15-year service life in harsh thermal environments |
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 inductive kickback in vehicle ECUs. IC Role / Device Role: Bidirectional TVS placed at connector entry point to clamp ±100 V transients before reaching signal conditioning circuitry. Use Value: Prevents latch-up or gate oxide damage in 5 V rail-connected MCUs and analog front-ends during ISO 16750-2 tests. | Use Scenario: Safeguarding 24 V digital input modules in programmable logic controllers against field-wiring surges and relay contact bounce. IC Role / Device Role: Primary surge limiter on dry-contact or optocoupler input channels exposed to factory floor EMI and switching noise. Use Value: Maintains functional safety integrity (IEC 61000-4-4/5 Level 3) without adding series impedance or signal distortion. |
| USB/Serial Interface Protection | Telecom Line Card Surge Suppression |
Use Scenario: Shielding RS-232/RS-485 transceivers and USB 2.0 data lines from ESD and lightning-induced surges in kiosk and point-of-sale terminals. IC Role / Device Role: Low-capacitance bidirectional clamp on differential pairs, placed adjacent to connector to minimize trace inductance. Use Value: Limits clamped voltage to <9.2 V while preserving signal integrity up to 10 Mbps due to minimal parasitic capacitance. | Use Scenario: Front-end protection of POTS line interface circuits in VoIP gateways and DSLAMs subjected to AC power cross-talk and lightning surges. IC Role / Device Role: First-stage suppressor on tip/ring lines before hybrid transformer and SLIC IC, absorbing >500 W energy bursts. Use Value: Extends mean time between failures (MTBF) by preventing cumulative degradation of line driver output stages. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J5.0CAHE3_A/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 deployment | Select when halogen-free content is not mandated and automotive qualification is unnecessary. |
| SMBJ5.0CA | Same VWM/VBR/VC ratings but in larger SMB (DO-214AA) package; 600 W PPPM rating | Requires 25 % more PCB area; better thermal dissipation in high-duty-cycle surge environments | Choose when higher surge repetition rate or improved thermal margin is required and board space permits. |
Compared with SMA5J5.0CAHE3_A/I, the SMA5J5.0CAHM3_A/I adds halogen-free compliance and AEC-Q101 validation - critical for Tier 1 automotive supply chains - while SMBJ5.0CA trades compactness for higher power headroom and lower thermal resistance, making it preferable in thermally constrained but non-automotive systems.
Availability
SMA5J5.0CAHM3_A/I is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and telecom line card designs requiring stable component supply with full traceability and lifecycle continuity.
Supply support for SMA5J5.0CAHM3_A/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, efficiency, and application-specific optimization.
The SMA5J series is engineered for high-power-density transient suppression in space-constrained, high-reliability applications - particularly targeting automotive, industrial, and communications infrastructure where AEC-Q101 compliance and consistent clamping performance are mandatory.
FAQ
What does the "HM3" suffix indicate in SMA5J5.0CAHM3_A/I?
The HM3 suffix in SMA5J5.0CAHM3_A/I denotes halogen-free, RoHS-compliant construction with full AEC-Q101 qualification. This distinguishes it from E3 (RoHS only) and HE3 (AEC-Q101 but not halogen-free) variants. The "A/I" indicates packaging in 13-inch tape-and-reel (7500 units) with revision A. SMA5J5.0CAHM3_A/I meets JESD201 Class 2 whisker resistance and MSL Level 1 reflow requirements.
Is SMA5J5.0CAHM3_A/I unidirectional or bidirectional?
SMA5J5.0CAHM3_A/I is a bidirectional transient voltage suppressor, as confirmed by the "CA" suffix in its part number and verified in Vishay's Electrical Characteristics table. It provides symmetrical clamping in both polarities - ideal for protecting AC-coupled lines, differential buses, or floating circuits without polarity-sensitive placement. Unlike unidirectional versions (e.g., SMA5J5.0A), SMA5J5.0CAHM3_A/I has no cathode band marking.
What is the clamping voltage and peak pulse current for SMA5J5.0CAHM3_A/I?
The SMA5J5.0CAHM3_A/I has a maximum clamping voltage (VC) of 9.2 V at a peak pulse current (IPPM) of 54.3 A, measured under the standard 10/1000 µs waveform. This VC value defines the upper voltage limit imposed on protected circuitry during surge events. The 500 W peak pulse power rating (PPPM) is derived from this VC–IPPM product and confirms compliance with IEC 61000-4-5 surge immunity requirements.
Can SMA5J5.0CAHM3_A/I replace SMA5J5.0A in a design?
No - SMA5J5.0CAHM3_A/I cannot directly replace SMA5J5.0A because they differ fundamentally in polarity: SMA5J5.0A is unidirectional, while SMA5J5.0CAHM3_A/I is bidirectional. Substituting without circuit review risks improper clamping on negative transients or forward conduction issues. Layout changes, including removal of polarity-dependent routing, would be required. Always verify signal path symmetry and DC bias conditions before interchanging SMA5J5.0CAHM3_A/I and SMA5J5.0A.
What is the thermal resistance and maximum junction temperature of SMA5J5.0CAHM3_A/I?
SMA5J5.0CAHM3_A/I has a typical junction-to-ambient thermal resistance (RθJA) of 80 °C/W and junction-to-lead resistance (RθJL) of 25 °C/W, measured on standard 0.2" × 0.2" copper pads. Its maximum operating junction temperature is +150 °C, enabling reliable operation in under-hood automotive and high-temperature industrial environments. Derating curves in the Vishay datasheet (Fig. 2) specify allowable power reduction above 25 °C ambient.
SMA5J5.0CAHM3_A/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:
- 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:
- 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)
SMA5J5.0CAHM3_A/I FAQ
1.How can I place an order for SMA5J5.0CAHM3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J5.0CAHM3_A/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 SMA5J5.0CAHM3_A/I reliable?
The price and inventory of SMA5J5.0CAHM3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J5.0CAHM3_A/I is usually 5 days.
3.What payment methods are accepted for SMA5J5.0CAHM3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J5.0CAHM3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J5.0CAHM3_A/I?
SMA5J5.0CAHM3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J5.0CAHM3_A/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 SMA5J5.0CAHM3_A/I?
For technical support, including SMA5J5.0CAHM3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J5.0CAHM3_A/I requirements.
6.How does Aetrix verify that SMA5J5.0CAHM3_A/I is sourced from the original manufacturer or authorized distributors?
All SMA5J5.0CAHM3_A/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 SMA5J5.0CAHM3_A/I meets industry standards.
7.What is the process for return or replacement of SMA5J5.0CAHM3_A/I?
All SMA5J5.0CAHM3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J5.0CAHM3_A/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 SMA5J5.0CAHM3_A/I part is unused and in its original packaging.
Return procedure for SMA5J5.0CAHM3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMA5J5.0CAHM3_A/I Tags
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