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Vishay General Semiconductor - Diodes Division SMCJ10AHM3/I
- Part No.:
- SMCJ10AHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ10AHM3/I.pdf
- Description:
- TVS DIODE 10VWM 17VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,236
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Product details
Overview
SMCJ10AHM3/I from Vishay is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMC (DO-214AB) package, designed for robust overvoltage protection of DC power rails and signal lines. It features a 10 V stand-off voltage (VWM), 11.1–12.3 V breakdown voltage (VBR) at 1 mA, 1500 W peak pulse power (10/1000 µs), clamping voltage of 17.0 V at 88.2 A IPPM, and operates from –55 °C to +150 °C junction temperature - deployed in automotive power supply inputs and industrial sensor interfaces.
For engineers reviewing the SMCJ10AHM3/I datasheet, SMCJ10AHM3/I pinout, SMCJ10AHM3/I application, or SMCJ10AHM3/I equivalent, key selection criteria include verified clamping performance under 10/1000 µs surge, AEC-Q101 qualification status, halogen-free RoHS compliance (HM3 suffix), thermal resistance (RθJA = 75 °C/W), and compatibility with automated SMT placement on 8.0 mm × 8.0 mm copper pads.
Technical Context
The SMCJ10AHM3/I employs a glass-passivated silicon junction optimized for fast transient response (<1 ns) and low incremental surge resistance. Its unidirectional polarity uses a cathode band marking and exhibits 1.0 µA max reverse leakage at VWM, enabling stable DC bias operation before clamping activation.
It delivers 1500 W peak pulse power handling per JEDEC-standard 10/1000 µs waveform, derated linearly above 25 °C ambient using the published thermal curve (Fig. 2), and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak temperature tolerance - confirming suitability for high-reliability commercial and automotive PCB assembly.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 10 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC rail margin for 12 V systems. |
| VBR min/max | 11.1 V / 12.3 V at IT = 1 mA - Confirmed breakdown threshold range ensures predictable turn-on during transients. |
| VC @ IPPM | 17.0 V at 88.2 A - Clamped voltage during full-rated 1500 W surge; determines protected circuit's maximum stress level. |
| PPPM | 1500 W - Peak pulse power rating per 10/1000 µs waveform; validates immunity to IEC 61000-4-5 Level 4 surges. |
| TJ max | +150 °C - Maximum junction temperature; supports under-hood automotive environments and high-power density layouts. |
| RθJA | 75 °C/W - Junction-to-ambient thermal resistance on standard 8.0 mm × 8.0 mm pads; enables thermal budgeting without heatsinks. |
| Package | SMC (DO-214AB) - Industry-standard surface-mount outline with 7.75 mm × 6.22 mm footprint and 2.62 mm height; compatible with IPC-7351B. |
Pinout & Package
SMCJ10AHM3/I is housed in an SMC (DO-214AB) plastic package with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Polarity is marked by a cathode band on the case end; no marking on bidirectional variants.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry (unidirectional) | Connected to lower-potential side of protected line; conducts during forward surge or ESD events. |
| Cathode | Reverse-biased terminal (marked band) | Connected to higher-potential rail (e.g., VBUS); initiates avalanche clamping when reverse voltage exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and body electronics per stress test requirements. |
| Halogen-free & RoHS-compliant (HM3) | Meets environmental regulations for green manufacturing and end-of-life recycling without brominated flame retardants. |
| Low-profile SMC package | Enables high-density PCB layouts with 2.62 mm max height and compatibility with automated pick-and-place equipment. |
| 1500 W surge capability | Withstands repeated 10/1000 µs transients up to 88.2 A, meeting ISO 7637-2 Pulse 1/2/5a and IEC 61000-4-5 standards. |
| Fast response time | <1 ns turn-on latency ensures protection of sensitive ICs such as microcontrollers and CAN transceivers before damage occurs. |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: 12 V battery-fed ECUs exposed to load dump (ISO 7637-2 Pulse 5a) and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS placed between VBAT and GND to clamp surges before they reach LDOs and MCU power pins. Use Value: Limits transient voltage to ≤17.0 V, preventing latch-up or gate oxide damage in downstream 5 V/3.3 V logic. | Use Scenario: 4–20 mA current loop sensors in factory automation subject to ESD and inductive switching noise. IC Role / Device Role / Timing Role: TVS mounted across analog input terminals to shunt fast transients while preserving signal integrity below 10 V. Use Value: 1.0 µA leakage at 10 V ensures minimal impact on loop accuracy; 17.0 V clamping protects ADC front-end stages. |
| Telecom DC Power Feeds | Consumer USB-C Port Protection |
Use Scenario: Central office power supplies delivering -48 V DC to remote nodes with lightning-induced surges. IC Role / Device Role / Timing Role: Bidirectional variant used (e.g., SMCJ10CA), but SMCJ10AHM3/I serves as unidirectional alternative where polarity is fixed and cost-sensitive. Use Value: 1500 W rating handles multi-kV induced surges; RθJA = 75 °C/W allows operation without forced air in enclosed cabinets. | Use Scenario: USB-C receptacles in laptops subjected to human-body-model (HBM) ESD and hot-swap voltage overshoot. IC Role / Device Role / Timing Role: TVS placed on VBUS line to clamp 100 V+ ESD events within nanoseconds before reaching USB PD controller. Use Value: 11.1–12.3 V VBR ensures clamping activates before USB-C spec limits (20 V max); HM3 suffix satisfies laptop OEM material compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ10AHE3/A | Lower PPPM (400 W), SMA package (smaller footprint, higher RθJA = 110 °C/W), same VWM/VBR range. | Targeted at space-constrained consumer electronics with lower surge exposure; not AEC-Q101 qualified. | Select when board area is critical and surge threat level is limited to IEC 61000-4-2 ESD only. |
| SMCJ10AHE3/I | Same electrical specs and SMC package, but uses HE3 (RoHS-compliant, non-halogen-free) instead of HM3 suffix. | Acceptable for commercial automotive modules where halogen-free is not mandated by Tier 1 specification. | Choose if halogen-free requirement is waived and cost optimization is prioritized over material compliance. |
Compared with SMCJ10AHM3/I, SMAJ10AHE3/A offers reduced surge robustness and thermal performance in a smaller package, while SMCJ10AHE3/I matches all electrical and mechanical attributes except halogen content - making it suitable where environmental compliance is less stringent.
Availability
SMCJ10AHM3/I is available at Aetrix Electronics and suitable for automotive power distribution, industrial sensor interface design, and telecom DC feed protection requiring stable component supply across long production lifecycles.
Supply support for SMCJ10AHM3/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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and application-specific performance.
The SMCJ series is part of Vishay's TRANSZORB® TVS platform engineered for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom infrastructure where failure modes must be mitigated without compromising signal fidelity.
FAQ
What is the clamping voltage of the SMCJ10AHM3/I under full-rated surge conditions?
The SMCJ10AHM3/I clamps to 17.0 V at its rated peak pulse current of 88.2 A (10/1000 µs waveform). This value is measured per standardized test conditions and defines the maximum voltage seen by downstream circuitry during a 1500 W transient event. The clamping behavior is repeatable and validated across temperature ranges from –55 °C to +150 °C, ensuring consistent protection in automotive and industrial deployments where SMCJ10AHM3/I is commonly applied.
Is the SMCJ10AHM3/I qualified for automotive use?
Yes, the SMCJ10AHM3/I is AEC-Q101 qualified, as confirmed by Vishay's ordering code suffix "HM3" and documentation in the SMCJ5.0A–SMCJ188CA datasheet (Document Number: 88394, Revision: 09-Jan-2024). This qualification covers stress tests including high-temperature operating life, temperature cycling, and ESD - validating SMCJ10AHM3/I for under-hood and chassis-mounted applications such as body control modules and ADAS power supplies.
How does the HM3 suffix differ from other SMCJ10A variants like HE3 or E3?
The HM3 suffix on SMCJ10AHM3/I indicates halogen-free, RoHS-compliant construction with AEC-Q101 qualification. In contrast, HE3 denotes RoHS-compliant and AEC-Q101 qualified but not halogen-free, while E3 is RoHS-compliant commercial grade only. All three share identical electrical parameters and SMC package dimensions, but HM3 meets stricter material requirements for automotive Tier 1 suppliers and green manufacturing initiatives where brominated flame retardants are prohibited.
What is the thermal resistance of the SMCJ10AHM3/I, and how does it affect layout design?
The SMCJ10AHM3/I has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on minimum recommended 8.0 mm × 8.0 mm copper pads per terminal. This value assumes standard FR-4 PCB with no additional heatsinking. For designs operating near TJ max (+150 °C), thermal derating must be applied above 25 °C ambient per Figure 2 in the datasheet. Layouts should maintain these pad sizes and avoid excessive copper isolation to ensure SMCJ10AHM3/I sustains full 1500 W surge capability without thermal runaway.
Can the SMCJ10AHM3/I be used in bidirectional protection circuits?
No, the SMCJ10AHM3/I is a unidirectional TVS diode, identified by its cathode band marking and specified breakdown characteristics for reverse-bias operation only. For bidirectional protection, Vishay offers the SMCJ10CA variant (with CA suffix), which provides symmetrical clamping in both polarities. Using SMCJ10AHM3/I in a bidirectional configuration would result in forward conduction during negative transients, potentially damaging the device or failing to protect the circuit - so correct polarity orientation and variant selection are essential when specifying SMCJ10AHM3/I.
SMCJ10AHM3/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- 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):
- 88.2A
- Power - Peak Pulse:
- 1500W (1.5kW)
- 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-214AB (SMC)
SMCJ10AHM3/I FAQ
1.How can I place an order for SMCJ10AHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ10AHM3/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 SMCJ10AHM3/I reliable?
The price and inventory of SMCJ10AHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ10AHM3/I is usually 5 days.
3.What payment methods are accepted for SMCJ10AHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ10AHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ10AHM3/I?
SMCJ10AHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ10AHM3/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 SMCJ10AHM3/I?
For technical support, including SMCJ10AHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ10AHM3/I requirements.
6.How does Aetrix verify that SMCJ10AHM3/I is sourced from the original manufacturer or authorized distributors?
All SMCJ10AHM3/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 SMCJ10AHM3/I meets industry standards.
7.What is the process for return or replacement of SMCJ10AHM3/I?
All SMCJ10AHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ10AHM3/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 SMCJ10AHM3/I part is unused and in its original packaging.
Return procedure for SMCJ10AHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ10AHM3/I Tags
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DESD3V3E1BL-7B
Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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