Vishay General Semiconductor - Diodes Division SMA5J10AHM3/H
- Part No.:
- SMA5J10AHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J10AHM3/H.pdf
- Description:
- TVS DIODE 10VWM 17VC DO214AC
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
SMA5J10AHM3/H from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMA (DO-214AC) package, designed for high-energy surge protection on power and signal lines. It features 10 V stand-off voltage (VWM), 17.0 V maximum clamping voltage at 29.4 A peak pulse current (IPPM), and 500 W peak pulse power rating with 10/1000 µs waveform. Used to protect MOSFETs, ICs, and sensor signal lines in automotive and industrial power supplies.
For engineers reviewing the SMA5J10AHM3/H datasheet, SMA5J10AHM3/H pinout, SMA5J10AHM3/H application, or SMA5J10AHM3/H equivalent, key selection criteria include clamping performance under 29.4 A surge, unidirectional polarity with cathode band marking, halogen-free RoHS compliance (HM3 suffix), and AEC-Q101 qualification for automotive-grade reliability.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector, triggering when reverse voltage exceeds 11.1 V (min) breakdown (VBR) and clamping transients to ≤17.0 V at rated IPPM. Its glass-passivated junction ensures stable leakage (<1.0 µA at VWM) and fast response time (<1 ns), critical for safeguarding sensitive CMOS inputs and gate drivers.
Thermal design relies on low RθJL (25 °C/W) and RθJA (80 °C/W), enabling reliable operation up to TJ = 150 °C. The device is rated for 40 A non-repetitive forward surge (IFSM) and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak, supporting automated SMT assembly without moisture sensitivity concerns.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 10 V - Maximum continuous reverse operating voltage before clamping begins; defines safe working range for 12 V rail protection. |
| VBR (min/max) | 11.1 V / 12.3 V - Breakdown voltage range at 1 mA test current; ensures consistent turn-on across production lots. |
| VC @ IPPM | 17.0 V - Clamping voltage at 29.4 A peak pulse (10/1000 µs); limits downstream voltage stress during ESD or load dump events. |
| PPPM | 500 W - Peak pulse power handling capability; supports IEC 61000-4-5 Level 4 (4 kV/2 Ω) surge immunity testing. |
| ID @ VWM | ≤1.0 µA - Reverse leakage at 10 V; minimizes standby power loss in battery-backed systems. |
| TJ max. | +150 °C - Maximum junction temperature; enables use in under-hood automotive environments and enclosed industrial enclosures. |
| Package | SMA (DO-214AC) - Surface-mount outline with 5.28 mm × 4.50 mm footprint and 2.29 mm height; compatible with standard 0.2" × 0.2" copper pad layout. |
Pinout & Package
SMA (DO-214AC) package: molded epoxy case with matte tin-plated leads, cathode indicated by a single black band at one end. Designed for reflow soldering per J-STD-020 MSL Level 1 (260 °C peak).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal (non-banded end) | Connects to lower-potential side of protected line; conducts during forward surge (e.g., reverse battery connection). |
| Cathode | Reverse conduction terminal (banded end) | Connects to higher-potential side; initiates clamping when reverse voltage exceeds VBR; must be placed upstream of protected IC input. |
Key Features
| Feature | Design Value |
|---|---|
| Halogen-free & RoHS-compliant (HM3) | Meets IEC 61249-2-21 and JEDEC J-STD-20; eliminates brominated flame retardants for safer recycling and reduced PCB corrosion risk. |
| AEC-Q101 qualified | Validated for automotive applications including engine control units and body electronics; includes HTOL, TC, and ESD testing per stress requirements. |
| Low incremental surge resistance | Enables tighter clamping (VC/VBR ratio = 1.53) versus legacy TVS devices, reducing voltage overshoot during fast transients. |
| Glass passivated junction | Provides stable VBR tolerance and low leakage over temperature (-55 °C to +150 °C), critical for long-term field reliability. |
| Automated placement compatible | Standardized lead geometry and coplanarity <0.1 mm support high-yield pick-and-place at >30,000 UPH in production SMT lines. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 12 V supply inputs in engine control modules against ISO 7637-2 load dump pulses (up to 60 V, 400 ms). IC Role / Device Role / Timing Role: Shunt-type transient suppressor placed between power rail and ground, activated within <1 ns to clamp voltage to ≤17.0 V. Use Value: Prevents latch-up or gate oxide damage in MCU power management ICs during alternator disconnection events. |
Use Scenario: Safeguarding analog outputs of pressure sensors in factory automation PLC I/O modules exposed to relay coil flyback. IC Role / Device Role / Timing Role: Bidirectional-capable unidirectional TVS placed across sensor output and ground, limiting induced spikes to <17.0 V. Use Value: Maintains signal integrity below ADC reference threshold, avoiding false readings or firmware resets during EMI-rich switching cycles. |
| Consumer DC-DC Converter Input | Telecom Ethernet PHY Interface |
Use Scenario: Input-side surge suppression for 5 V buck converters in smart home hubs powered from USB-C PD adapters. IC Role / Device Role / Timing Role: Primary overvoltage clamp on VIN line, absorbing 500 W surges while maintaining <1.0 µA leakage at 5 V nominal. Use Value: Eliminates need for secondary crowbar circuitry, reducing BOM count and board space by 30% versus discrete Zener+SCR solutions. |
Use Scenario: Secondary-level protection on 3.3 V bias rails feeding Gigabit Ethernet PHYs in network switches subjected to lightning-induced surges. IC Role / Device Role / Timing Role: Fast-response shunt element parallel to LDO output, clamping transients before they propagate to sensitive SerDes lanes. Use Value: Enables compliance with IEC 61000-4-5 Ed. 3 (2 kV line-earth) without degrading signal rise/fall times due to low junction capacitance (<100 pF). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J10AHE3/H | Same electrical specs (VWM = 10 V, VC = 17.0 V), but RoHS-compliant commercial grade (E3) without halogen-free certification. | Lacks halogen-free material declaration; not suitable for EU automotive Tier 1 programs requiring full material compliance reporting. | Select SMA5J10AHE3/H only for cost-sensitive industrial controls where halogen-free status is not mandated. |
| SMA6J10A-M3/H | 600 W PPPM rating (vs. 500 W), same VWM and VC, but larger SMA package variant with higher thermal mass (RθJA = 70 °C/W). | Better suited for repeated surge exposure in motor drive inverters; requires revised pad layout (0.25" × 0.25" copper) for optimal derating. | Choose SMA6J10A-M3/H when system-level testing shows >500 W surge margin is required, accepting minor footprint increase. |
Compared with SMA5J10AHE3/H, SMA5J10AHM3/H adds halogen-free compliance for stricter environmental programs; compared with SMA6J10A-M3/H, it trades 100 W pulse power for smaller footprint and lower cost-ideal for space-constrained automotive body modules.
Availability
SMA5J10AHM3/H is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor interfaces, and consumer DC-DC converter inputs requiring stable component supply with AEC-Q101 qualification and halogen-free compliance.
Supply support for SMA5J10AHM3/H 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, and passive components for automotive, industrial, and computing markets.
The SMA5J series delivers high-power-density TVS protection optimized for AEC-Q101-compliant automotive subsystems and ruggedized industrial power supplies where compact size and repeatable clamping are essential.
FAQ
What is the clamping voltage of the SMA5J10AHM3/H at its rated peak pulse current?
The SMA5J10AHM3/H has a maximum clamping voltage (VC) of 17.0 V at its rated peak pulse current (IPPM) of 29.4 A, measured using a 10/1000 µs waveform. This value is guaranteed across the full operating temperature range and ensures predictable overvoltage limiting for protected circuits. The SMA5J10AHM3/H maintains this clamping performance with minimal degradation after multiple surge events when operated within its specified derating curve.
Is the SMA5J10AHM3/H suitable for automotive applications?
Yes, the SMA5J10AHM3/H is AEC-Q101 qualified and carries the HM3 suffix indicating halogen-free, RoHS-compliant construction-meeting Tier 1 automotive material requirements. It is validated for use in engine control units, body control modules, and infotainment power supplies where ISO 7637-2 load dump and IEC 61000-4-5 surge immunity are mandatory. The SMA5J10AHM3/H operates reliably from -55 °C to +150 °C junction temperature.
How does the HM3 suffix differ from the E3 or HE3 suffix on SMA5J10A variants?
The HM3 suffix on SMA5J10AHM3/H denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification, whereas E3 indicates RoHS-compliant commercial grade only, and HE3 adds AEC-Q101 without halogen-free certification. The SMA5J10AHM3/H satisfies strict environmental mandates (e.g., JIG-170, VW 80101) requiring both automotive qualification and halogen-free materials-making it distinct from E3 and HE3 versions in compliance scope and target applications.
What is the reverse leakage current specification for the SMA5J10AHM3/H at its stand-off voltage?
The SMA5J10AHM3/H exhibits a maximum reverse leakage current (ID) of 1.0 µA at its 10 V stand-off voltage (VWM), tested at 25 °C. This low leakage ensures minimal power drain in always-on systems such as automotive telematics modules or battery-powered IoT sensors. Leakage remains below 5.0 µA up to +125 °C, preserving efficiency in thermally demanding environments.
Does the SMA5J10AHM3/H require special PCB layout considerations?
Yes-the SMA5J10AHM3/H should be mounted on minimum recommended 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal to achieve rated 500 W pulse power dissipation. Short, direct traces to ground and protected line minimize inductance, preserving sub-nanosecond response. Avoid thermal relief on pads; solid copper connections ensure optimal heat transfer and prevent premature thermal runaway during repetitive surges. The SMA5J10AHM3/H cathode band must align with schematic polarity to prevent misapplication.
SMA5J10AHM3/H 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:
- 1
- Bidirectional Channels:
- -
- 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)
SMA5J10AHM3/H FAQ
1.How can I place an order for SMA5J10AHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J10AHM3/H 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 SMA5J10AHM3/H reliable?
The price and inventory of SMA5J10AHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J10AHM3/H is usually 5 days.
3.What payment methods are accepted for SMA5J10AHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J10AHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J10AHM3/H?
SMA5J10AHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J10AHM3/H 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 SMA5J10AHM3/H?
For technical support, including SMA5J10AHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J10AHM3/H requirements.
6.How does Aetrix verify that SMA5J10AHM3/H is sourced from the original manufacturer or authorized distributors?
All SMA5J10AHM3/H 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 SMA5J10AHM3/H meets industry standards.
7.What is the process for return or replacement of SMA5J10AHM3/H?
All SMA5J10AHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J10AHM3/H, 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 SMA5J10AHM3/H part is unused and in its original packaging.
Return procedure for SMA5J10AHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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