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Vishay General Semiconductor - Diodes Division 1.5SMC10AHM3/I
- Part No.:
- 1.5SMC10AHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC10AHM3/I.pdf
- Description:
- TVS DIODE 8.55VWM 14.5VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,875
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Product details
Overview
1.5SMC10AHM3/I from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMC (DO-214AB) package, rated for 1500 W peak pulse power with 10/1000 μs waveform, 14.5 V clamping voltage at 103 A peak pulse current, and 8.55 V stand-off voltage - deployed for overvoltage protection of automotive sensor signal lines, industrial I/O ports, and DC power rails.
For engineers reviewing the 1.5SMC10AHM3/I datasheet, 1.5SMC10AHM3/I pinout, 1.5SMC10AHM3/I application, or 1.5SMC10AHM3/I equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification (HM3 suffix), halogen-free RoHS compliance, 150 °C max junction temperature, and compatibility with automated SMT placement on 8.0 mm × 8.0 mm copper pads.
Technical Context
This TVS diode operates as a clamping device that conducts above its breakdown voltage (9.50–10.5 V at 1 mA test current) to limit transient energy, with low incremental surge resistance ensuring stable clamping under repetitive 0.01% duty cycle surges. Its glass-passivated junction enables fast response time (<1 ns) and robust surge handling up to 200 A forward surge (8.3 ms half-sine).
The 1.5SMC10AHM3/I is thermally optimized for surface-mount applications: RθJA = 75 °C/W (on recommended pad layout), RθJL = 15 °C/W, and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak. It is halogen-free, RoHS-compliant, and AEC-Q101 qualified for automotive-grade reliability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (10/1000 μs) | 1500 W - sustains high-energy transients without failure in automotive load-dump or ESD events |
| Clamping Voltage (VC at IPPM) | 14.5 V - limits downstream IC voltage to safe level during 103 A surge |
| Stand-off Voltage (VWM) | 8.55 V - blocks normal 5–12 V rail operation while remaining inactive |
| Breakdown Voltage (VBR) | 9.50–10.5 V at 1 mA - precise triggering threshold for repeatable protection behavior |
| Max Junction Temperature | 150 °C - supports operation in under-hood automotive environments and industrial enclosures |
| AEC-Q101 Qualified | Yes - validated for automotive electronics per stress-test requirements (HM3 suffix) |
| Package | SMC (DO-214AB) - industry-standard 2-pin SMT footprint with cathode band marking |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, matte tin-plated leads, 0.220–0.246 inch body width, 0.305–0.320 inch length, cathode indicated by band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input/Line side (unidirectional) | Connected to protected line; conducts when cathode-to-anode voltage exceeds VBR |
| Cathode | Output/Load side (unidirectional) | Connected to ground or low-impedance return; defines polarity and clamping reference |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse rating | Enables single-device protection against ISO 7637-2 Pulse 5a (load dump) in 12 V systems |
| AEC-Q101 qualification (HM3) | Validated for automotive use including temperature cycling, HTRB, and mechanical shock per AEC standard |
| Halogen-free & RoHS-compliant | Meets EU Directive 2011/65/EU and IPC-1752A material declaration requirements |
| Low-profile SMC package | 0.114–0.126 inch height enables compact PCB layouts in space-constrained modules |
| Fast response time (<1 ns) | Clamps transients before sensitive logic or analog circuitry sustains damage |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load dump and ESD in engine control units. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between sensor signal line and chassis ground. Use Value: Limits induced transients to ≤14.5 V, preserving signal integrity and preventing latch-up in 3.3 V/5 V interface ICs. |
Use Scenario: Safeguarding digital input/output terminals of programmable logic controllers against field-wiring surges and inductive kickback. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 24 V DC I/O channels, upstream of optocoupler or level-shifter. Use Value: Absorbs 1500 W pulses without degradation, enabling >100,000 surge cycles per IEC 61000-4-5 compliance testing. |
| DC Power Rail Protection | Consumer USB Port Protection |
Use Scenario: Secondary protection on 12 V supply rails feeding infotainment head units or ADAS camera modules. IC Role / Device Role / Timing Role: Standoff-rated TVS placed after primary fuse and upstream of DC-DC converters. Use Value: Blocks leakage <1 μA at 8.55 V while clamping load-dump spikes to 14.5 V - within input tolerance of most 12 V-rated regulators. |
Use Scenario: Overvoltage guard on VBUS line of USB 2.0 ports in smart home hubs and portable docking stations. IC Role / Device Role / Timing Role: Unidirectional suppressor between USB connector and USB switch/controller. Use Value: Clamps 10/1000 μs surges to 14.5 V with <1 ns response, meeting USB-IF ESD immunity requirements (±15 kV air, ±8 kV contact). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ10A-E3/52 | 600 W rating, SMB package (smaller footprint), 17.0 V clamping at 35.1 A | Limited to lower-energy transients; not AEC-Q101 qualified | Select for cost-sensitive consumer designs where 1500 W margin is unnecessary |
| 1.5SMC10AHE3_A/I | Same electrical specs, but RoHS-compliant commercial grade (E3) without halogen-free or AEC-Q101 validation | Approved for non-automotive industrial/commercial use only | Choose when AEC-Q101 and halogen-free requirements are not mandated |
Compared with 1.5SMC10AHM3/I, SMBJ10A-E3/52 offers smaller size but sacrifices 60% peak power handling and automotive qualification; 1.5SMC10AHE3_A/I matches performance but lacks halogen-free certification and AEC-Q101 validation - making 1.5SMC10AHM3/I the sole option for production automotive ECUs requiring full compliance.
Availability
1.5SMC10AHM3/I is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and DC power rail protection requiring stable component supply, long-term lifecycle support, and traceable AEC-Q101 qualified parts.
Supply support for 1.5SMC10AHM3/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, thermal performance, and automotive-grade validation.
The 1.5SMC Series is engineered for high-power transient suppression in harsh environments - targeting automotive, industrial, and telecom infrastructure where robustness, repeatability, and regulatory compliance are mandatory.
FAQ
What is the clamping voltage of the 1.5SMC10AHM3/I at its rated peak pulse current?
The 1.5SMC10AHM3/I has a maximum clamping voltage (VC) of 14.5 V at its rated peak pulse current (IPPM) of 103 A, measured under the standard 10/1000 μs waveform. This value ensures downstream components operating at 12 V nominal remain within safe absolute maximum ratings during surge events. The 1.5SMC10AHM3/I maintains this clamping performance across its full operating temperature range of –65 °C to +150 °C.
Is the 1.5SMC10AHM3/I suitable for automotive applications?
Yes, the 1.5SMC10AHM3/I is explicitly AEC-Q101 qualified, as confirmed by its HM3 suffix and Vishay's documentation. It undergoes stress testing for high-temperature reverse bias, temperature cycling, and mechanical shock per AEC-Q101 Rev D. The 1.5SMC10AHM3/I is designed for under-hood and body-control module applications where sustained 150 °C junction temperatures and repetitive surge immunity are required.
What does the "HM3" suffix indicate in 1.5SMC10AHM3/I?
The "HM3" suffix in 1.5SMC10AHM3/I denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification. "H" indicates halogen-free molding compound; "M3" specifies the RoHS-compliant, whisker-tested terminal finish; and the "/I" denotes packaging in 13-inch tape-and-reel (3500 units). This distinguishes it from E3 (RoHS commercial) or HE3 (AEC-Q101 but not halogen-free) variants.
How does the 1.5SMC10AHM3/I compare to bidirectional TVS diodes like 1.5SMC10CA?
The 1.5SMC10AHM3/I is unidirectional and intended for DC line protection where polarity is fixed (e.g., VCC-to-ground), offering tighter VBR tolerance (9.50–10.5 V) and lower leakage. In contrast, 1.5SMC10CA is bidirectional, suited for AC or differential lines (e.g., RS-485), with symmetric clamping in both directions but higher VWM (7.78 V) and no cathode marking. The 1.5SMC10AHM3/I cannot replace 1.5SMC10CA in AC-coupled applications.
What PCB layout guidance applies to the 1.5SMC10AHM3/I for optimal thermal performance?
For optimal thermal performance, the 1.5SMC10AHM3/I must be mounted on minimum 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal, as specified in Vishay's datasheet Figure 2. Use thermal vias under pads if internal layers are grounded, and avoid narrow traces between the 1.5SMC10AHM3/I and ground plane. This layout achieves the rated RθJA of 75 °C/W and prevents derating above 25 °C ambient.
1.5SMC10AHM3/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- 1.5SMC, TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 8.55V
- Voltage - Breakdown (Min):
- 9.5V
- Voltage - Clamping (Max) @ Ipp:
- 14.5V
- Current - Peak Pulse (10/1000µs):
- 103A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
1.5SMC10AHM3/I FAQ
1.How can I place an order for 1.5SMC10AHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC10AHM3/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 1.5SMC10AHM3/I reliable?
The price and inventory of 1.5SMC10AHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC10AHM3/I is usually 5 days.
3.What payment methods are accepted for 1.5SMC10AHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC10AHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC10AHM3/I?
1.5SMC10AHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC10AHM3/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 1.5SMC10AHM3/I?
For technical support, including 1.5SMC10AHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC10AHM3/I requirements.
6.How does Aetrix verify that 1.5SMC10AHM3/I is sourced from the original manufacturer or authorized distributors?
All 1.5SMC10AHM3/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 1.5SMC10AHM3/I meets industry standards.
7.What is the process for return or replacement of 1.5SMC10AHM3/I?
All 1.5SMC10AHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC10AHM3/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 1.5SMC10AHM3/I part is unused and in its original packaging.
Return procedure for 1.5SMC10AHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC10AHM3/I Tags
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