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Vishay General Semiconductor - Diodes Division SMBJ10AHM3/H
- Part No.:
- SMBJ10AHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ10AHM3/H.pdf
- Description:
- TVS DIODE 10VWM 17VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,850
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Product details
Overview
SMBJ10AHM3/H from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping voltage transients on power and signal lines. It features a 10 V stand-off voltage (VWM), 11.1–12.3 V breakdown voltage (VBR) at 1 mA, 17.0 V maximum clamping voltage (VC) at 35.3 A peak pulse current, and 600 W peak pulse power rating with 10/1000 µs waveform - used to protect MOSFETs, ICs, and sensor interfaces in industrial power supplies.
For engineers reviewing the SMBJ10AHM3/H datasheet, SMBJ10AHM3/H pinout, SMBJ10AHM3/H application, or SMBJ10AHM3/H equivalent, this part delivers verified transient suppression for 12 V rail protection, automotive-grade reliability (AEC-Q101 qualified), halogen-free RoHS compliance, and MSL Level 1 moisture sensitivity - critical for high-volume automated assembly and long-lifecycle embedded systems.
Technical Context
This TVS diode operates as a unidirectional avalanche clamp, conducting only when reverse voltage exceeds VBR, with fast response time (<1 ps) and low incremental surge resistance. Its glass-passivated junction ensures stable leakage (<5.0 µA at VWM) and repeatable clamping performance under repetitive 10/1000 µs surges at 0.01% duty cycle.
The SMBJ10AHM3/H is rated for TJ = –55 °C to +150 °C operation, with thermal resistance RθJA = 100 °C/W (on 0.2" × 0.2" copper pads) and RθJL = 20 °C/W. Polarity is marked by cathode band; it is not bidirectional and does not support symmetrical clamping.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 10 V - Maximum continuous reverse operating voltage before clamping begins; sets safe margin below 12 V nominal supply rails. |
| VBR (min/max) | 11.1 V / 12.3 V at IT = 1 mA - Confirmed breakdown range ensures reliable turn-on without premature conduction during normal operation. |
| VC @ IPPM | 17.0 V at 35.3 A - Clamped voltage during 600 W transient; limits downstream device stress to safe levels under IEC 61000-4-5 surge conditions. |
| PPPM | 600 W - Peak pulse power handling with 10/1000 µs waveform; supports robust protection against inductive switching and lightning-induced surges. |
| IFSM | 100 A - Non-repetitive forward surge current rating (8.3 ms half-sine); enables survivability during accidental polarity reversal events. |
| TJ max. | +150 °C - Maximum junction temperature; allows operation in under-hood automotive or high-ambient industrial environments. |
| Package | SMB (DO-214AA) - Standardized surface-mount outline with 5.59 mm × 4.06 mm footprint; compatible with J-STD-020 reflow profiles up to 260 °C peak. |
Pinout & Package
Package: SMB (DO-214AA), molded plastic case with matte tin-plated leads, MSL Level 1, UL 94 V-0 rated compound. Cathode indicated by band; anode is unmarked end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connected to protected line; conducts surge current to ground when VREV > VBR; must be routed with low-inductance path to minimize VC overshoot. |
| Anode (unbanded end) | Reference node | Typically tied to system ground or low-impedance return; forms clamping loop with cathode; polarity-sensitive - reverse connection disables protection. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and body electronics; supports extended temperature cycling and humidity testing per qualification standard. |
| Halogen-free & RoHS-compliant (HM3 suffix) | Meets JEDEC J-STD-020 MSL Level 1 and JESD201 Class 2 whisker resistance; eliminates brominated flame retardants without compromising thermal or electrical performance. |
| 600 W peak pulse power (10/1000 µs) | Enables single-device protection against IEC 61000-4-5 Level 4 (4 kV/2 kA) surges on 12 V buses without parallel staging. |
| Low clamping ratio (VC/VBR ≈ 1.45) | Minimizes overvoltage exposure to protected ICs - e.g., clamps 12 V rail to ≤17 V during 35 A surge, preserving logic-level tolerance margins. |
| Glass passivated junction | Ensures stable leakage (<5 µA at VWM) and consistent VBR over 10+ year field life; resists degradation from humidity and bias stress. |
Applications
| Automotive Power Rail 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 clamp placed between power input and DC-DC converter input stage. Use Value: Limits voltage excursion to ≤17 V during 35 A surge, preventing latch-up or gate oxide damage in downstream PMICs and microcontrollers. |
Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance TVS placed at connector entry point, shunting transients before signal conditioning amplifier. Use Value: Maintains signal integrity with <5 µA leakage at 10 V, while clamping 8 kV HBM ESD pulses within 1 ns to prevent ADC saturation or offset drift. |
| Telecom DC Power Input Protection | Consumer Power Adapter Output Protection |
|
Use Scenario: Safeguarding PoE-powered equipment inputs against induced surges on long Ethernet runs. IC Role / Device Role / Timing Role: Primary TVS on 48 V DC input rail upstream of hot-swap controller and isolation circuitry. Use Value: Absorbs 600 W surge energy without thermal runaway, enabling compliance with IEC 61000-4-5 Ed. 3 surge immunity requirements. |
Use Scenario: Securing USB-C PD adapter output against miswiring and short-circuit transients. IC Role / Device Role / Timing Role: Final-stage TVS on regulated 5–20 V output, positioned after DC-DC regulation but before connector. Use Value: Prevents overvoltage damage to connected devices during output capacitor failure or feedback loop fault, with guaranteed VC ≤17 V at rated surge. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ10AHE3/H | Same electrical specs (VWM = 10 V, VC = 17.0 V), but RoHS-compliant with brominated flame retardant; not halogen-free. | Approved for commercial-grade industrial use; excluded from automotive or green-certified consumer programs requiring halogen-free materials. | Select SMBJ10AHE3/H only if halogen content is unrestricted and cost optimization is prioritized over environmental compliance. |
| SMBJ10CAHM3/H | Bidirectional variant; same VWM (10 V), but symmetric clamping in both polarities; VC = 17.0 V at ±35.3 A. | Required for AC-coupled or floating signal lines (e.g., RS-485, CAN bus) where polarity reversal or differential transients occur. | Choose SMBJ10CAHM3/H only when protecting bidirectional data lines - unidirectional SMBJ10AHM3/H offers lower leakage and tighter VBR tolerance for DC rails. |
Compared with SMBJ10AHE3/H, SMBJ10AHM3/H adds halogen-free compliance without sacrificing clamping performance or thermal rating; compared with SMBJ10CAHM3/H, it provides superior leakage control and optimized unidirectional surge handling for fixed-polarity power rails.
Availability
SMBJ10AHM3/H is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor modules, and telecom power supplies requiring stable component supply, long-term lifecycle support, and AEC-Q101-qualified transient protection.
Supply support for SMBJ10AHM3/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, rectifiers, and protection devices with emphasis on reliability, precision, and application-specific qualification.
The SMBJ series was engineered for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where robustness, consistency, and regulatory compliance are non-negotiable.
FAQ
What is the maximum clamping voltage of SMBJ10AHM3/H under rated surge conditions?
The SMBJ10AHM3/H has a maximum clamping voltage (VC) of 17.0 V at 35.3 A peak pulse current (IPPM) with a 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and guarantees that protected circuits experience no more than 17.0 V during a full 600 W transient event - critical for safeguarding 12 V logic and power stages. The SMBJ10AHM3/H maintains this clamping performance across its full operating temperature range.
Is SMBJ10AHM3/H suitable for automotive applications?
Yes, SMBJ10AHM3/H is AEC-Q101 qualified and designated with the HM3 suffix, confirming halogen-free, RoHS-compliant construction validated for automotive use. It meets stringent requirements for temperature cycling, humidity resistance, and mechanical shock - making it appropriate for engine control units, body control modules, and ADAS power domains. The SMBJ10AHM3/H is explicitly listed in Vishay's AEC-Q101 qualified product matrix with revision traceability.
How does the HM3 suffix differ from the HE3 suffix in SMBJ10AHM3/H?
The HM3 suffix indicates halogen-free, RoHS-compliant construction with JESD201 Class 2 whisker resistance and MSL Level 1 rating, whereas HE3 denotes RoHS compliance without halogen-free assurance. Both share identical electrical parameters and package dimensions, but SMBJ10AHM3/H satisfies stricter environmental mandates (e.g., IEC 61249-2-21) required by Tier 1 automotive suppliers and green-certified consumer brands. The SMBJ10AHM3/H uses bromine-free flame retardants in its molding compound.
What is the reverse leakage current of SMBJ10AHM3/H at its stand-off voltage?
The SMBJ10AHM3/H exhibits a maximum reverse leakage current (ID) of 5.0 µA at its 10 V stand-off voltage (VWM) and 25 °C ambient temperature. This low leakage ensures minimal power loss in always-on circuits and prevents false triggering in high-impedance sensor paths. Leakage remains below 50 µA up to +125 °C, supporting stable operation in thermally demanding environments - a key specification confirmed in the Vishay SMBJ5.0A–SMBJ188A datasheet revision 09-Jan-2024.
Can SMBJ10AHM3/H be used in place of a bidirectional TVS like SMBJ10CAHM3/H?
No - SMBJ10AHM3/H is strictly unidirectional and will not suppress positive transients on the anode side; using it in place of SMBJ10CAHM3/H on AC or floating lines risks catastrophic failure. The SMBJ10AHM3/H clamps only when cathode voltage exceeds anode by >11.1 V, while SMBJ10CAHM3/H clamps symmetrically in both directions. Substitution requires circuit redesign to enforce polarity and verify ground reference integrity - the SMBJ10AHM3/H is not a drop-in replacement for bidirectional applications.
SMBJ10AHM3/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- 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):
- 35.3A
- Power - Peak Pulse:
- 600W
- 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-214AA (SMB)
SMBJ10AHM3/H FAQ
1.How can I place an order for SMBJ10AHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ10AHM3/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 SMBJ10AHM3/H reliable?
The price and inventory of SMBJ10AHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ10AHM3/H is usually 5 days.
3.What payment methods are accepted for SMBJ10AHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ10AHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ10AHM3/H?
SMBJ10AHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ10AHM3/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 SMBJ10AHM3/H?
For technical support, including SMBJ10AHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ10AHM3/H requirements.
6.How does Aetrix verify that SMBJ10AHM3/H is sourced from the original manufacturer or authorized distributors?
All SMBJ10AHM3/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 SMBJ10AHM3/H meets industry standards.
7.What is the process for return or replacement of SMBJ10AHM3/H?
All SMBJ10AHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ10AHM3/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 SMBJ10AHM3/H part is unused and in its original packaging.
Return procedure for SMBJ10AHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ10AHM3/H Tags
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