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Vishay General Semiconductor - Diodes Division 3KASMC10AHE3_B/H
- Part No.:
- 3KASMC10AHE3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
3KASMC10AHE3_B/H.pdf
- Description:
- TVS DIODE 10VWM 17VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,841
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Product details
Overview
3KASMC10AHE3_B/H from Vishay General Semiconductor is a unidirectional surface-mount PAR® transient voltage suppressor (TVS) in SMC (DO-214AB) package, rated for 10 V stand-off voltage, 11.1–12.3 V breakdown at 1 mA, 3000 W peak pulse power (10/1000 μs), 177 A peak pulse current, and 17.0 V clamping voltage at IPPM - deployed for automotive-grade ESD and surge protection on power rails and signal lines of MOSFETs and sensor ICs.
For engineers reviewing the 3KASMC10AHE3_B/H datasheet, 3KASMC10AHE3_B/H pinout, 3KASMC10AHE3_B/H application, or 3KASMC10AHE3_B/H equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, TJ = 185 °C operation, MSL Level 1 rating, and 10/1000 μs waveform clamping performance under automotive thermal stress conditions.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to deliver stable clamping under repetitive surge events up to 185 °C junction temperature. Its low incremental surge resistance and fast response time ensure robust protection against inductive switching transients and lightning-induced surges in high-reliability systems.
The device operates exclusively in unidirectional mode with cathode-band polarity marking, meets JESD201 Class 2 whisker resistance, and is qualified per AEC-Q101 - confirming suitability for automotive powertrain and body electronics where thermal derating and long-term reliability are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 10 V - maximum continuous reverse operating voltage before leakage exceeds 5 μA |
| VBR (min/typ/max) | 11.1 / 11.7 / 12.3 V at IT = 1 mA - defines precise breakdown threshold for predictable clamping onset |
| VC @ IPPM | 17.0 V at 177 A - clamping voltage during 3000 W transient ensures downstream ICs stay below absolute max ratings |
| PPPM | 3000 W (10/1000 μs) - supports high-energy surge suppression in automotive load-dump and ISO 7637-2 compliance |
| TJ max. | +185 °C - enables placement near hot components (e.g., power MOSFETs, motor drivers) without thermal derating loss |
| Package | SMC (DO-214AB) - industry-standard SMT footprint with 7.11 mm × 6.60 mm outline and 0.305 mm lead thickness for mechanical robustness |
| AEC-Q101 | Qualified - validated for automotive use including temperature cycling, HTRB, and ESD testing per stress test plan |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, matte tin-plated leads, cathode indicated by color band. Meets UL 94 V-0, MSL Level 1 (260 °C peak reflow), and JESD201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to protected circuit ground or low-side return path; forms clamping loop with cathode |
| Cathode | Current exit point during reverse-biased clamping | Connected to protected line (e.g., 12 V rail); absorbs surge energy into ground via low-impedance path |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation optimized design | Reduces parameter drift over 15+ year automotive life; maintains VBR stability across -65 °C to +185 °C |
| 3000 W peak pulse power (10/1000 μs) | Withstands ISO 7637-2 Pulse 5a (load dump) up to 120 V/300 ms without degradation |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (<1 ns rise time), improving system-level immunity |
| MSL Level 1, 260 °C peak reflow | Enables single-pass reflow assembly with standard Pb-free profiles without popcorn or delamination risk |
| AEC-Q101 qualification (HE3 suffix) | Validates reliability for automotive powertrain, ADAS, and infotainment modules requiring zero field failure history |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load-dump transients (ISO 7637-2 Pulse 5a) and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and input filter capacitor to clamp surges before LDO or DC/DC regulator. Use Value: 17.0 V clamping at 177 A prevents overvoltage damage to downstream PMICs and microcontrollers while maintaining AEC-Q101 compliance. | Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) from ESD and cable discharge events in factory automation. IC Role / Device Role / Timing Role: TVS mounted at connector interface to shunt ±8 kV contact ESD (IEC 61000-4-2) away from op-amp inputs and ADC front-end. Use Value: Sub-20 V clamping and <1 ns response time preserve signal integrity and prevent latch-up in precision 24-bit sigma-delta converters. |
| Motor Drive Gate Protection | Telecom DC Power Input Protection |
Use Scenario: Safeguarding high-side N-channel MOSFET gate drivers from Miller-induced voltage spikes during fast switching. IC Role / Device Role / Timing Role: TVS placed between gate and source to clamp dv/dt-induced overshoot exceeding VGS(max) rating. Use Value: 11.7 V nominal breakdown ensures clamping initiates before 20 V gate oxide stress limit, extending FET lifetime in 48 V BLDC inverters. | Use Scenario: Hardening -48 V telecom power feeds against lightning-induced surges (IEC 61000-4-5, 2 Ω/12 Ω coupling). IC Role / Device Role / Timing Role: Primary unidirectional TVS on input stage, coordinated with MOV and fuse for staged overvoltage defense. Use Value: 3000 W rating and 185 °C capability allow sustained operation in sealed outdoor cabinets without thermal shutdown. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ10A-E3/5AT | Lower PPPM (400 W), smaller SMA package, VBR = 11.1–12.3 V, same VWM | Not AEC-Q101 qualified; limited to commercial/industrial use below 150 °C | Select when cost-sensitive non-automotive designs require basic 10 V clamping without automotive qualification or high-power surge margin |
| SMCJ10AHE3_A/H | Same SMC package, identical electrical specs, but HE3_A/H suffix indicates earlier revision (A vs B) and different reel packaging (H = 7″ tape) | No functional difference; revision B includes updated process controls and tighter IR screening | Prefer 3KASMC10AHE3_B/H for new designs requiring latest reliability screening and documented traceability per automotive PPAP |
Compared with SMAJ10A-E3/5AT and SMCJ10AHE3_A/H, the 3KASMC10AHE3_B/H delivers higher surge robustness (3000 W vs 400 W), full AEC-Q101 validation, and extended 185 °C operation - making it the only choice for under-hood automotive modules where thermal margin and qualification rigor are non-negotiable.
Availability
3KASMC10AHE3_B/H is available at Aetrix Electronics and suitable for automotive power management, industrial sensor interfaces, motor drive gate circuits, and telecom DC input protection requiring stable component supply with full AEC-Q101 traceability and MSL Level 1 reflow compatibility.
Supply support for 3KASMC10AHE3_B/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, TVS devices, and optoelectronics with emphasis on high-reliability, high-temperature, and automotive-qualified solutions.
The 3KASMC series was designed specifically for AEC-Q101-compliant transient suppression in harsh-environment automotive electronics - targeting engine control units, ADAS camera modules, and electric power steering systems demanding 185 °C junction capability and repeatable clamping performance.
FAQ
What is the clamping voltage of the 3KASMC10AHE3_B/H at its rated peak pulse current?
The 3KASMC10AHE3_B/H has a maximum clamping voltage (VC) of 17.0 V at its specified peak pulse current (IPPM) of 177 A, measured using the standardized 10/1000 μs double-exponential waveform. This value is guaranteed across the full operating temperature range and confirms that downstream components remain within safe voltage limits during surge events. The 3KASMC10AHE3_B/H achieves this with low incremental surge resistance and stable junction characteristics.
Is the 3KASMC10AHE3_B/H qualified for automotive applications?
Yes, the 3KASMC10AHE3_B/H is AEC-Q101 qualified, as confirmed by Vishay's official documentation and ordering code suffix HE3. It undergoes full stress testing including HTGB, HTRB, temperature cycling, and ESD per AEC-Q101 Rev G. The 3KASMC10AHE3_B/H is intended for automotive powertrain, body electronics, and ADAS modules where zero-field-failure reliability is mandatory.
What does the "B/H" suffix in 3KASMC10AHE3_B/H indicate?
The "B" in 3KASMC10AHE3_B/H denotes the revision level (Revision B, per document 88480 dated 19-Jan-2024), reflecting updated process controls and tighter parametric screening. The "H" specifies the packaging format: 7-inch diameter plastic tape and reel, with 850 units per reel. This distinguishes the 3KASMC10AHE3_B/H from variants like 3KASMC10AHE3_B/I (13″ reel, 3500 units).
Can the 3KASMC10AHE3_B/H be used in bidirectional configurations?
No, the 3KASMC10AHE3_B/H is strictly unidirectional, as explicitly stated in the Vishay datasheet. It features a cathode band marking and is not rated for reverse standoff or clamping in the forward direction. For bidirectional protection, engineers must select a dedicated bidirectional TVS such as the 3KASMC10CAHE3_B/H - the 3KASMC10AHE3_B/H cannot be substituted without circuit redesign.
What is the thermal resistance and maximum power dissipation of the 3KASMC10AHE3_B/H?
The 3KASMC10AHE3_B/H has a typical junction-to-ambient thermal resistance (RθJA) of 77.5 °C/W and a maximum power dissipation (PD) of 6.0 W when mounted on an infinite heatsink at TL = 75 °C. Under standard PCB layout (minimum recommended pads), continuous power handling is limited by ambient temperature derating per Figure 6 - the 3KASMC10AHE3_B/H is optimized for transient, not steady-state, power dissipation.
3KASMC10AHE3_B/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- PAR®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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):
- 177A
- Power - Peak Pulse:
- 3000W (3kW)
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 185°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
3KASMC10AHE3_B/H FAQ
1.How can I place an order for 3KASMC10AHE3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for 3KASMC10AHE3_B/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 3KASMC10AHE3_B/H reliable?
The price and inventory of 3KASMC10AHE3_B/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 3KASMC10AHE3_B/H is usually 5 days.
3.What payment methods are accepted for 3KASMC10AHE3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 3KASMC10AHE3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 3KASMC10AHE3_B/H?
3KASMC10AHE3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 3KASMC10AHE3_B/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 3KASMC10AHE3_B/H?
For technical support, including 3KASMC10AHE3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 3KASMC10AHE3_B/H requirements.
6.How does Aetrix verify that 3KASMC10AHE3_B/H is sourced from the original manufacturer or authorized distributors?
All 3KASMC10AHE3_B/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 3KASMC10AHE3_B/H meets industry standards.
7.What is the process for return or replacement of 3KASMC10AHE3_B/H?
All 3KASMC10AHE3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with 3KASMC10AHE3_B/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 3KASMC10AHE3_B/H part is unused and in its original packaging.
Return procedure for 3KASMC10AHE3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
3KASMC10AHE3_B/H Tags
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