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Vishay General Semiconductor - Diodes Division SMCJ10AHM3/H
- Part No.:
- SMCJ10AHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ10AHM3/H.pdf
- Description:
- TVS DIODE 10VWM 17VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,571
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Product details
Overview
SMCJ10AHM3/H from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMC (DO-214AB) package, designed to protect sensitive electronics against voltage transients induced by inductive load switching and lightning surges. It features a 10 V stand-off voltage (VWM), 17.0 V maximum clamping voltage (VC) at 88.2 A peak pulse current (IPPM), and 1500 W peak pulse power dissipation (PPPM) with a 10/1000 µs waveform.
For engineers reviewing the SMCJ10AHM3/H datasheet, SMCJ10AHM3/H pinout, SMCJ10AHM3/H application, or SMCJ10AHM3/H equivalent, key selection criteria include its AEC-Q101 qualification for automotive use, halogen-free RoHS-compliant construction (HM3 suffix), low incremental surge resistance, and verified clamping performance under standardized surge conditions.
Technical Context
The SMCJ10AHM3/H operates as a unidirectional avalanche diode, conducting only when reverse voltage exceeds its breakdown threshold (VBR = 11.1–12.3 V at IT = 1.0 mA). Its glass-passivated junction ensures stable breakdown characteristics and fast response time (<1 ns), enabling effective suppression of ESD and fast-rising transients.
Thermal design is supported by RθJA = 75 °C/W and RθJL = 15 °C/W, with maximum junction temperature rated at +150 °C. The device is rated for non-repetitive peak forward surge current (IFSM) of 200 A (8.3 ms half-sine), and meets MSL Level 1 per J-STD-020 with peak reflow temperature up to 260 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 10 V - Maximum continuous reverse operating voltage before clamping begins; defines safe signal line operating margin. |
| VBR min/max | 11.1 V / 12.3 V at 1.0 mA - Confirmed breakdown range ensures reliable turn-on without premature conduction. |
| VC @ IPPM | 17.0 V at 88.2 A - Clamping voltage during 10/1000 µs surge; limits downstream IC stress to safe levels. |
| PPPM | 1500 W - Peak transient energy handling capacity under standard IEC 61000-4-5 surge waveform. |
| ID @ VWM | 5.0 µA - Low leakage ensures minimal impact on high-impedance circuits during normal operation. |
| TJ max | +150 °C - Enables deployment in under-hood automotive and industrial environments with elevated ambient temperatures. |
| Package | SMC (DO-214AB) - Standardized surface-mount outline with 8.0 mm × 8.0 mm copper pad thermal management per datasheet fig. 2. |
Pinout & Package
SMCJ10AHM3/H uses the SMC (DO-214AB) package: a surface-mount, molded plastic case with two terminals and a cathode band marking. Dimensions are 7.11 mm × 6.22 mm × 2.62 mm (L × W × H); terminals are matte tin-plated and solderable per J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; connected to system ground or low-side reference in unidirectional TVS configuration. | Provides return path during clamping; must be routed with low-inductance connection to minimize voltage overshoot. |
| Cathode | Marked end (band); reverse-biased terminal connected to protected line (e.g., CAN_H, USB_VBUS, sensor supply). | Defines polarity-sensitive placement; incorrect orientation prevents clamping and risks device failure under surge. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and ADAS sensors, supporting long-term reliability under thermal cycling and vibration. |
| Halogen-free & RoHS-compliant (HM3) | Meets environmental compliance requirements for Tier-1 automotive suppliers and industrial OEMs with strict material declarations. |
| Low incremental surge resistance | Enables tighter clamping (VC − VBR = 5.9 V) and lower let-through energy compared to higher-Rsurge TVS devices. |
| MSL Level 1 rating | Allows direct placement onto PCBs without baking; compatible with standard SMT reflow profiles up to 260 °C peak. |
| Glass passivated junction | Improves long-term stability of VBR and leakage current across temperature and lifetime, critical for mission-critical protection. |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and chassis ground to clamp positive-going surges above 10 V. Use Value: Limits peak voltage to ≤17.0 V during 1500 W surges, preventing damage to LDOs, microcontrollers, and CAN transceivers. |
Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) from ESD and cable discharge events. IC Role / Device Role / Timing Role: TVS mounted at connector interface to shunt fast transients before reaching precision ADC front-end. Use Value: Sub-1 ns response and 5.0 µA leakage preserve signal integrity and measurement accuracy in 24-bit sensor systems. |
| Telecom DC Power Input Protection | Consumer USB Port Surge Suppression |
|
Use Scenario: Safeguarding PoE-powered network switches against induced surges on 48 V DC input lines. IC Role / Device Role / Timing Role: Primary overvoltage clamp on secondary-side DC bus, coordinated with upstream MOVs. Use Value: 1500 W PPPM rating handles multiple IEC 61000-4-5 Level 4 surges without degradation, extending field service life. |
Use Scenario: Adding robustness to USB-C power delivery paths against hot-plug and contact bounce transients. IC Role / Device Role / Timing Role: Unidirectional TVS on VBUS line, positioned after fuse and before buck converter input. Use Value: 10 V VWM aligns with USB PD 3.0 specification; 17.0 V VC ensures downstream PMIC remains within absolute maximum ratings. |
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/VC specs. | Suitable for space-constrained consumer boards with lower surge threat levels (IEC 61000-4-2 only). | Select when board area is critical and surge energy does not exceed 400 W; verify thermal derating at 75 °C ambient. |
| SMCJ10AHE3/H | Same electrical specs and SMC package, but RoHS-compliant commercial grade (E3) instead of halogen-free (HM3); no AEC-Q101 qualification. | Acceptable for industrial control panels where automotive qualification is not mandated. | Choose for cost-sensitive non-automotive designs requiring identical clamping performance and thermal capability. |
Compared with SMCJ10AHM3/H, SMAJ10AHE3/A offers smaller size but reduced surge handling and thermal performance, while SMCJ10AHE3/H matches mechanical and electrical behavior but lacks halogen-free and AEC-Q101 compliance required for Tier-1 automotive sourcing.
Availability
SMCJ10AHM3/H is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor nodes, telecom power supplies, and USB-C PD systems requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SMCJ10AHM3/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 diodes, MOSFETs, optoelectronics, and passive components with emphasis on reliability and application-specific performance.
The SMCJ series was developed for high-energy transient suppression in harsh environments, targeting automotive, industrial, and telecom infrastructure where AEC-Q101 qualification and 1500 W surge capability are mandatory.
FAQ
What is the clamping voltage of SMCJ10AHM3/H under a 10/1000 µs surge?
The SMCJ10AHM3/H has a maximum clamping voltage (VC) of 17.0 V when subjected to its rated peak pulse current (IPPM) of 88.2 A using the standard 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and confirmed in the Vishay datasheet revision 09-Jan-2024. The clamping performance ensures protected circuitry remains within safe voltage limits during surge events, and SMCJ10AHM3/H maintains this spec across its qualified operating temperature range.
Is SMCJ10AHM3/H suitable for automotive applications?
Yes, SMCJ10AHM3/H is AEC-Q101 qualified and explicitly designated for automotive use via its HM3 suffix and "HE3/HM3" ordering code structure. It meets stringent requirements for thermal cycling, humidity resistance, and surge robustness in engine control, body electronics, and ADAS subsystems. The SMCJ10AHM3/H datasheet confirms qualification per AEC-Q101 Rev D, and its halogen-free, RoHS-compliant construction satisfies Tier-1 supplier material compliance mandates.
What is the difference between SMCJ10AHM3/H and SMCJ10AHE3/H?
The SMCJ10AHM3/H and SMCJ10AHE3/H share identical electrical specifications (VWM = 10 V, VC = 17.0 V, PPPM = 1500 W) and SMC package, but differ in material compliance and qualification: SMCJ10AHM3/H is halogen-free and AEC-Q101 qualified, whereas SMCJ10AHE3/H is RoHS-compliant (E3) without halogen-free certification or automotive qualification. Both are manufactured by Vishay General Semiconductor, and SMCJ10AHM3/H is preferred for automotive Tier-1 designs requiring full material and reliability validation.
Does SMCJ10AHM3/H have polarity markings, and how is it oriented on the PCB?
Yes, SMCJ10AHM3/H is unidirectional and features a cathode band marking on the SMC (DO-214AB) package body. During PCB layout, the banded end must be connected to the line being protected (e.g., 12 V rail), while the anode connects to ground. Reversing polarity prevents clamping action and may cause catastrophic failure under surge. The Vishay datasheet specifies polarity in the Mechanical Data section and confirms cathode identification per industry-standard DO-214AB conventions. Always verify orientation using optical inspection before reflow.
What is the maximum junction temperature and thermal resistance of SMCJ10AHM3/H?
The SMCJ10AHM3/H has a maximum junction temperature (TJ max) of +150 °C and typical thermal resistance values of RθJA = 75 °C/W (junction-to-ambient, on recommended 8.0 mm × 8.0 mm copper pads) and RθJL = 15 °C/W (junction-to-lead). These parameters are validated per JEDEC test conditions and enable thermal design for sustained operation in under-hood automotive and industrial enclosures. Derating curves in the SMCJ10AHM3/H datasheet show usable power dissipation down to 50 % at 100 °C ambient, confirming suitability for high-reliability thermal environments.
SMCJ10AHM3/H 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/H FAQ
1.How can I place an order for SMCJ10AHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ10AHM3/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 SMCJ10AHM3/H reliable?
The price and inventory of SMCJ10AHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ10AHM3/H is usually 5 days.
3.What payment methods are accepted for SMCJ10AHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ10AHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ10AHM3/H?
SMCJ10AHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ10AHM3/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 SMCJ10AHM3/H?
For technical support, including SMCJ10AHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ10AHM3/H requirements.
6.How does Aetrix verify that SMCJ10AHM3/H is sourced from the original manufacturer or authorized distributors?
All SMCJ10AHM3/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 SMCJ10AHM3/H meets industry standards.
7.What is the process for return or replacement of SMCJ10AHM3/H?
All SMCJ10AHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ10AHM3/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 SMCJ10AHM3/H part is unused and in its original packaging.
Return procedure for SMCJ10AHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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