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Vishay General Semiconductor - Diodes Division SMA5J10AHM3/I
- Part No.:
- SMA5J10AHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J10AHM3/I.pdf
- Description:
- TVS DIODE 10VWM 17VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:6,667
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Product details
Overview
SMA5J10AHM3/I 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/I datasheet, SMA5J10AHM3/I pinout, SMA5J10AHM3/I application, or SMA5J10AHM3/I equivalent, key selection criteria include clamping voltage vs. protected device breakdown margin, unidirectional polarity alignment with DC rail orientation, thermal resistance (RθJA = 80 °C/W), and AEC-Q101 qualification status for automotive deployment.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector triggered by reverse-biased avalanche breakdown above its 11.1–12.3 V breakdown range (VBR). Its low incremental surge resistance enables rapid energy diversion during transients induced by inductive load switching or ESD events.
Designed for surface-mount automated assembly, it uses glass-passivated junction technology and meets J-STD-020 MSL Level 1 (260 °C peak reflow). The HM3 suffix confirms halogen-free, RoHS-compliant construction with AEC-Q101 qualification for automotive-grade reliability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 10 V - Maximum continuous reverse operating voltage before clamping begins; sets minimum system rail margin. |
| VBR (min/max) | 11.1 V / 12.3 V - Breakdown voltage range at 1 mA test current; defines turn-on threshold consistency. |
| VC @ IPPM | 17.0 V - Clamping voltage at 29.4 A peak pulse current; determines maximum stress on downstream ICs. |
| PPPM | 500 W - Peak pulse power handling with 10/1000 µs waveform; quantifies single-event surge energy capacity. |
| ID @ VWM | 1.0 µA - Reverse leakage at stand-off voltage; ensures minimal quiescent power loss in battery-powered systems. |
| RθJA | 80 °C/W - Junction-to-ambient thermal resistance; requires ≥5.0 mm × 5.0 mm copper pad per terminal for rated power. |
| Polarity | Unidirectional - Cathode marked with band; must be oriented against DC rail polarity for proper clamping. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile plastic case with matte tin-plated leads solderable per J-STD-002. Cathode indicated by molded band on body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction path | Connected to lower-potential side of protected line (e.g., GND or return path). |
| Cathode | Avalanche clamping node | Connected to higher-potential side (e.g., +12 V rail); band-marked end accepts transient surge current. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive underhood and infotainment applications per stress test requirements. |
| Halogen-free & RoHS-compliant (HM3) | Meets IEC 61249-2-21 and JEDEC JESD201 Class 2 whisker resistance standards. |
| Low RθJL = 25 °C/W | Enables efficient heat transfer to PCB copper pads, supporting sustained surge duty cycles. |
| Fast response time & low clamping ratio | Clamps within picoseconds with VC/VBR ≈ 1.52 - minimizes overvoltage exposure to protected ICs. |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow without baking; compatible with high-volume SMT lines. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 12 V supply inputs of engine control units (ECUs) against load dump and alternator transients. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between battery rail and local regulator input. Use Value: Clamps surges up to ISO 7637-2 Pulse 5a (110 V/100 ms) to ≤17.0 V, preserving downstream LDO and MCU integrity. |
Use Scenario: Safeguarding analog outputs of pressure sensors in factory automation PLC modules. IC Role / Device Role / Timing Role: TVS mounted at connector interface to absorb ESD (IEC 61000-4-2 ±15 kV) and cable discharge events. Use Value: Limits transient overshoot to <17.0 V while maintaining <1.0 µA leakage at 10 V, preventing sensor output drift. |
| Consumer Power Adapter Input Stage | Telecom DC Power Feed Protection |
Use Scenario: Secondary-side overvoltage suppression in USB-C PD adapters with wide-input buck converters. IC Role / Device Role / Timing Role: Clamp device across output capacitor to limit fault-induced voltage spikes during short-circuit recovery. Use Value: Withstands 500 W pulses without degradation, enabling robust compliance with UL 62368-1 surge immunity requirements. |
Use Scenario: Protecting -48 V DC feeding circuits in base station remote radio units (RRUs). IC Role / Device Role / Timing Role: Unidirectional TVS installed on feed line prior to DC-DC converter input stage. Use Value: Provides 29.4 A surge current handling at -48 V nominal, meeting GR-1089-CORE lightning-induced surge thresholds. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J10AHE3/I | Same electrical specs; RoHS-compliant but not halogen-free; lacks AEC-Q101 qualification. | Suitable for commercial/industrial use only; not approved for automotive production. | Select when halogen-free content is not mandated and automotive qualification is unnecessary. |
| SMCJ10A | Higher 1500 W PPPM rating; larger SMC (DO-214AB) package; same VWM/VBR/VC specs. | Used where higher surge energy tolerance is required; requires larger PCB footprint and layout revision. | Choose when system-level surge testing exceeds 500 W; verify board space and thermal pad compatibility. |
Compared with SMA5J10AHM3/I, SMA5J10AHE3/I offers identical clamping performance without halogen-free or automotive qualification, while SMCJ10A delivers triple the surge power in a physically larger package-requiring trade-offs between board density, cost, and ruggedness.
Availability
SMA5J10AHM3/I is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor interfaces, and telecom power feed circuits requiring stable component supply with full AEC-Q101 traceability and halogen-free compliance.
Supply support for SMA5J10AHM3/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, and passive components for demanding industrial and automotive environments.
The SMA5J series was developed specifically for high-power-density transient suppression in space-constrained automotive and industrial power systems, emphasizing AEC-Q101 qualification, low thermal resistance, and automated assembly compatibility.
FAQ
What is the clamping voltage of the SMA5J10AHM3/I under maximum rated surge current?
The SMA5J10AHM3/I exhibits a maximum clamping voltage (VC) of 17.0 V when subjected to its rated peak pulse current (IPPM) of 29.4 A using the standardized 10/1000 µs waveform. This value is measured at the device terminals under specified test conditions (TA = 25 °C, mounted on 5.0 mm × 5.0 mm copper pads) and defines the upper voltage limit imposed on protected circuitry during transient events. The SMA5J10AHM3/I maintains this clamping performance across its qualified temperature range.
Is the SMA5J10AHM3/I suitable for automotive applications?
Yes, the SMA5J10AHM3/I is explicitly AEC-Q101 qualified, as confirmed by its HM3 suffix and Vishay documentation. It undergoes stress testing including high-temperature operating life, temperature cycling, and unbiased highly accelerated stress testing to meet automotive reliability requirements. The SMA5J10AHM3/I is intended for under-hood and cabin applications such as body control modules and ADAS sensor power rails where robust transient immunity is mandatory.
How does the HM3 suffix differ from the E3 or M3 suffix in the SMA5J10A family?
The HM3 suffix on SMA5J10AHM3/I denotes halogen-free, RoHS-compliant construction combined with AEC-Q101 qualification. In contrast, E3 indicates RoHS compliance only (no halogen-free or automotive qualification), and M3 adds halogen-free content but omits AEC-Q101 validation. All three share identical electrical characteristics and SMA (DO-214AC) packaging, but only HM3 supports automotive production use with full material and reliability certification.
What is the thermal resistance and recommended PCB layout for the SMA5J10AHM3/I?
The SMA5J10AHM3/I has a typical junction-to-ambient thermal resistance (RθJA) of 80 °C/W when mounted on the minimum recommended pad layout: 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads connected to internal ground/power planes. To achieve rated 500 W pulse power, both anode and cathode pads must meet this dimension and be thermally coupled via multiple vias. The SMA5J10AHM3/I's RθJL of 25 °C/W further emphasizes the need for direct thermal conduction to PCB copper.
Does the SMA5J10AHM3/I have bidirectional capability?
No, the SMA5J10AHM3/I is a unidirectional transient voltage suppressor, as indicated by the "A" (not "CA") suffix in its part number. It conducts only in reverse bias above its breakdown voltage and blocks forward current like a standard rectifier diode. Bidirectional variants (e.g., SMA5J10CA) are available separately for AC-coupled or dual-rail protection, but SMA5J10AHM3/I must be oriented with its cathode band toward the positive rail to function correctly.
SMA5J10AHM3/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:
- 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/I FAQ
1.How can I place an order for SMA5J10AHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J10AHM3/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 SMA5J10AHM3/I reliable?
The price and inventory of SMA5J10AHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J10AHM3/I is usually 5 days.
3.What payment methods are accepted for SMA5J10AHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J10AHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J10AHM3/I?
SMA5J10AHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J10AHM3/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 SMA5J10AHM3/I?
For technical support, including SMA5J10AHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J10AHM3/I requirements.
6.How does Aetrix verify that SMA5J10AHM3/I is sourced from the original manufacturer or authorized distributors?
All SMA5J10AHM3/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 SMA5J10AHM3/I meets industry standards.
7.What is the process for return or replacement of SMA5J10AHM3/I?
All SMA5J10AHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J10AHM3/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 SMA5J10AHM3/I part is unused and in its original packaging.
Return procedure for SMA5J10AHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMA5J10AHM3/I Tags
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