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Vishay General Semiconductor - Diodes Division SMA5J10CAHM3/I
- Part No.:
- SMA5J10CAHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J10CAHM3/I.pdf
- Description:
- TVS DIODE 10VWM 17VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:5,128
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Product details
Overview
SMA5J10CAHM3/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 a 10 V standoff voltage (VWM), 11.1–12.3 V breakdown voltage (VBR), 500 W peak pulse power (PPPM), and clamps to ≤17.0 V at 29.4 A (10/1000 μs waveform), commonly deployed in automotive sensor interface protection.
For engineers reviewing the SMA5J10CAHM3/I datasheet, SMA5J10CAHM3/I pinout, SMA5J10CAHM3/I application, or SMA5J10CAHM3/I equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, halogen-free RoHS compliance, thermal resistance (RθJA = 80 °C/W), and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This device operates as a voltage-clamped crowbar during transients, leveraging an avalanche breakdown mechanism with glass-passivated junction for stable, repeatable clamping. Its bidirectional symmetry ensures identical electrical characteristics in both polarities - critical for AC-coupled or floating signal lines.
Rated for -55 °C to +150 °C junction temperature, it delivers low incremental surge resistance and fast response time (<1 ns), enabling effective suppression of ESD, lightning-induced surges, and inductive switching spikes without affecting normal circuit operation below 10 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 10 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC/AC signal swing envelope. |
| VBR (min/max) | 11.1 V / 12.3 V - Measured at 1 mA test current; guarantees reliable avalanche initiation within tight tolerance band. |
| VC @ IPPM | ≤17.0 V at 29.4 A - Clamping voltage under 10/1000 μs surge; determines maximum stress imposed on protected IC or MOSFET. |
| PPPM | 500 W - Peak pulse power handling per single transient; enables robust protection against IEC 61000-4-5 Level 4 surges. |
| TJ max. | +150 °C - Maximum junction temperature rating; supports operation in under-hood automotive environments. |
| RθJA | 80 °C/W - Junction-to-ambient thermal resistance on standard 0.2" × 0.2" copper pads; informs PCB thermal layout requirements. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-020 (MSL Level 1, 260 °C peak). Bidirectional construction means no polarity marking - terminals are symmetrical and interchangeable.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient conduction path | Both terminals serve identically in either polarity; no cathode band marking required for bidirectional types. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing - suitable for engine control, ADAS, and body electronics. |
| Halogen-free & RoHS-compliant (HM3 suffix) | Meets global environmental regulations and JEDEC JESD201 Class 2 whisker resistance - eliminates long-term solder joint degradation risk. |
| Low RθJL (25 °C/W) | Enables efficient heat transfer from junction to PCB pad, supporting sustained surge duty cycles without thermal runaway. |
| Fast response time (<1 ns) | Clamps transients before sensitive downstream components experience overvoltage - critical for protecting high-speed interfaces like CAN FD or LIN. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting analog output lines of pressure/temperature sensors in engine bay modules exposed to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed across sensor supply and ground, shunting surge energy away from precision amplifier inputs. Use Value: Maintains signal integrity by limiting transient excursions to ≤17.0 V while surviving repeated 500 W surges per IEC 61000-4-5. |
Use Scenario: Safeguarding 24 V digital input channels on programmable logic controllers interfacing with industrial solenoids and contactors. IC Role / Device Role / Timing Role: Transient suppressor mounted at connector entry point, absorbing inductive kickback from relay coils and motor drivers. Use Value: Prevents false triggering and latch-up in microcontroller GPIOs by clamping 10/1000 μs surges to safe levels without leakage current interference. |
| Telecom Line Interface | Consumer Power Adapter Input |
Use Scenario: Surge protection on Ethernet PHY differential pairs and PoE power lines in network switches subjected to lightning-induced common-mode transients. IC Role / Device Role / Timing Role: Bidirectional TVS array element placed across each twisted pair, providing symmetric clamping without signal distortion. Use Value: Preserves signal fidelity up to 100 MHz due to low junction capacitance and ensures immunity to ±1 kV/500 Ω combination wave surges. |
Use Scenario: Input-stage protection on AC-DC adapters for smart home devices, guarding against mains-borne surges and capacitor discharge events. IC Role / Device Role / Timing Role: Primary-level clamping device between bridge rectifier output and bulk capacitor, absorbing line-to-line and line-to-ground transients. Use Value: Enables compact design with only one device covering both polarities, reducing BOM count versus dual unidirectional TVS solutions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J10CAHE3/I | Same electrical specs and AEC-Q101 qualification, but RoHS-compliant without halogen-free requirement (E3 vs HM3). | Acceptable for non-automotive industrial use where halogen-free mandate does not apply. | Select when halogen-free certification is not required and cost optimization is prioritized. |
| SMA6J10CAHM3/I | Higher PPPM rating (600 W vs 500 W); same VWM/VBR/VC, but larger package footprint (SMB/DO-214AA). | Used where higher surge margin is needed and PCB space allows larger SMD outline. | Choose when system-level surge testing exceeds IEC 61000-4-5 Level 4 or repeated surge endurance is critical. |
Compared with SMA5J10CAHM3/I, SMA5J10CAHE3/I offers identical performance without halogen-free assurance, while SMA6J10CAHM3/I trades compactness for 20 % higher surge capacity - guiding selection based on space constraints, regulatory mandates, and surge severity requirements.
Availability
SMA5J10CAHM3/I is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, telecom line protection, and consumer power adapter designs requiring stable component supply with full traceability and lifecycle support.
Supply support for SMA5J10CAHM3/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 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, high-reliability systems - emphasizing AEC-Q101 qualification, thermal robustness, and consistent clamping performance across temperature.
FAQ
What is the clamping voltage of the SMA5J10CAHM3/I under a 10/1000 μs surge?
The SMA5J10CAHM3/I clamps to a maximum of 17.0 V when subjected to its rated peak pulse current of 29.4 A using the standardized 10/1000 μs waveform. This value is guaranteed across the full operating temperature range and forms the basis for downstream component voltage margining in designs using the SMA5J10CAHM3/I.
Is SMA5J10CAHM3/I suitable for automotive applications?
Yes, SMA5J10CAHM3/I is AEC-Q101 qualified and carries the HM3 suffix indicating halogen-free, RoHS-compliant construction - making it approved for use in automotive powertrain, chassis, and body electronics where reliability under thermal and mechanical stress is mandatory. The SMA5J10CAHM3/I meets all required stress tests per the AEC-Q101 standard.
Does SMA5J10CAHM3/I have polarity markings on the package?
No, SMA5J10CAHM3/I is a bidirectional TVS diode and carries no polarity marking such as a cathode band. Its symmetrical internal structure ensures identical clamping behavior in both directions, and both terminals are functionally interchangeable - a key distinction from unidirectional variants like SMA5J10A.
What is the thermal resistance of SMA5J10CAHM3/I, and how does it affect layout?
The SMA5J10CAHM3/I 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 safe junction temperatures during repeated surges, PCB layout must provide adequate copper area and thermal vias - undersized pads will elevate RθJA and risk thermal failure of the SMA5J10CAHM3/I.
How does SMA5J10CAHM3/I differ from SMA5J10A?
SMA5J10CAHM3/I is bidirectional with symmetrical clamping in both polarities and no polarity marking, whereas SMA5J10A is unidirectional with a cathode band and forward voltage drop (~3.5 V at 25 A). The "CA" suffix denotes bidirectionality, and "HM3" confirms halogen-free, RoHS-compliant, AEC-Q101-qualified construction - critical distinctions when selecting the correct SMA5J10CAHM3/I variant.
SMA5J10CAHM3/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:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 10V
- Voltage - Breakdown (Min):
- 11.1V
- Voltage - Clamping (Max) @ Ipp:
- 17V
- Current - Peak Pulse (10/1000µs):
- 29.4A
- 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)
SMA5J10CAHM3/I FAQ
1.How can I place an order for SMA5J10CAHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J10CAHM3/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 SMA5J10CAHM3/I reliable?
The price and inventory of SMA5J10CAHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J10CAHM3/I is usually 5 days.
3.What payment methods are accepted for SMA5J10CAHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J10CAHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J10CAHM3/I?
SMA5J10CAHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J10CAHM3/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 SMA5J10CAHM3/I?
For technical support, including SMA5J10CAHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J10CAHM3/I requirements.
6.How does Aetrix verify that SMA5J10CAHM3/I is sourced from the original manufacturer or authorized distributors?
All SMA5J10CAHM3/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 SMA5J10CAHM3/I meets industry standards.
7.What is the process for return or replacement of SMA5J10CAHM3/I?
All SMA5J10CAHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J10CAHM3/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 SMA5J10CAHM3/I part is unused and in its original packaging.
Return procedure for SMA5J10CAHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMA5J10CAHM3/I Tags
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