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Vishay General Semiconductor - Diodes Division 3KASMC10AHE3_A/I
- Part No.:
- 3KASMC10AHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
3KASMC10AHE3_A/I.pdf
- Description:
- TVS DIODE 10VWM 17VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,553
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Product details
Overview
3KASMC10AHE3_A/I from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in DO-214AB (SMC) 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 surge current, and 17.0 V clamping voltage at IPPM - designed for automotive-grade overvoltage protection of MOSFETs, sensor signal lines, and IC power rails.
For engineers reviewing the 3KASMC10AHE3_A/I datasheet, 3KASMC10AHE3_A/I pinout, 3KASMC10AHE3_A/I application, or 3KASMC10AHE3_A/I equivalent, key selection criteria include its AEC-Q101 qualification, TJ = 185 °C maximum junction temperature, MSL Level 1 rating, uni-directional polarity, and DO-214AB mechanical compatibility with high-reliability automotive and industrial PCB layouts.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology to achieve low incremental surge resistance and excellent clamping response under fast transients. Its 10/1000 μs waveform capability and 17.0 V clamping voltage at 177 A ensure robust protection against inductive switching spikes and ESD events without compromising downstream circuit integrity.
The device operates across –65 °C to +185 °C junction temperature range and maintains stable performance under high-temperature bias conditions. Its thermal resistance (RθJA = 77.5 °C/W, RθJL = 18.3 °C/W) supports reliable operation on standard SMT pad layouts without forced cooling, meeting automotive under-hood thermal requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 10 V - Maximum continuous reverse voltage before clamping begins; sets operating margin for 12 V automotive systems. |
| VBR (Breakdown Voltage) | 11.1–12.3 V at 1 mA - Tight tolerance ensures predictable turn-on during transients; guarantees clamping initiation before system damage threshold. |
| PPPM (Peak Pulse Power) | 3000 W (10/1000 μs) - Enables suppression of high-energy load-dump and ISO 7637-2 Pulse 5a surges without failure. |
| VC (Clamping Voltage) | 17.0 V at IPPM = 177 A - Limits voltage seen by protected ICs to safe levels during worst-case surge events. |
| TJ max. | +185 °C - Supports under-hood automotive applications and high-ambient industrial environments without derating. |
| Polarity | Uni-directional - Protects only against positive transients on cathode-grounded configurations; requires correct orientation in DC-biased circuits. |
| Package | DO-214AB (SMC) - Industry-standard surface-mount outline with 7.75 mm × 6.22 mm footprint and 2.06 mm lead spacing; compatible with automated placement and reflow. |
Pinout & Package
DO-214AB (SMC) package with two terminals: anode and cathode. Cathode identified by molded band. Leads are matte tin-plated, solderable per J-STD-002 and JESD 22-B102, and meet JESD 201 Class 2 whisker test.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Positive terminal in forward bias; connected to protected line in uni-directional clamp configuration | Carries surge current into device during transient; must be routed with low-inductance path to minimize voltage overshoot. |
| Cathode | Negative terminal; marked by color band; tied to system ground or reference rail | Serves as clamping reference point; grounding integrity directly affects clamping voltage accuracy and response speed. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics use with extended temperature cycling, humidity, and mechanical stress testing per JEDEC standard. |
| Junction passivation optimized design | Reduces leakage drift and improves long-term reliability under high-temperature bias stress (TJ = 185 °C). |
| MSL Level 1 (260 °C peak) | Enables single-reflow assembly without moisture sensitivity concerns; eliminates baking requirement prior to SMT processing. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (<1 ns rise time), improving protection fidelity for sensitive analog and digital inputs. |
| Excellent clamping capability (VC/VBR ratio = 1.43) | Delivers tight voltage control between breakdown and clamping - critical for protecting 12 V logic interfaces and CAN transceivers. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Suppressing load-dump transients (ISO 7637-2 Pulse 5a) on 12 V battery-fed ECUs and body control modules. IC Role / Device Role / Timing Role: Uni-directional TVS placed between power input and ground to clamp overvoltage before it reaches LDOs, microcontrollers, and CAN controllers. Use Value: Prevents latch-up and permanent damage to 12 V-rated ICs during alternator regulation failure, enabling compliance with OEM stress-test requirements. |
Use Scenario: Protecting analog output lines of pressure, temperature, and position sensors exposed to ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance TVS mounted at connector interface to shunt fast transients before they couple into precision ADC front-ends. Use Value: Maintains signal integrity and measurement accuracy by limiting transient-induced offset errors and preventing sensor IC reset or burnout. |
| Motor Drive Gate Driver Protection | Telecom DC Power Input Protection |
Use Scenario: Shielding high-side/low-side gate drivers in BLDC inverters from inductive kickback generated by motor winding commutation. IC Role / Device Role / Timing Role: TVS placed across driver supply pins (VDD–GND) to absorb repetitive 100–500 V spikes with sub-μs rise times. Use Value: Extends gate driver lifetime and prevents false triggering by maintaining VDD within specified UVLO and overvoltage thresholds. |
Use Scenario: Safeguarding primary DC input of telecom power supplies and base station RF modules against lightning-induced surges on -48 V distribution lines. IC Role / Device Role / Timing Role: First-stage TVS in multi-level protection scheme, absorbing bulk energy before downstream MOVs or GDTs activate. Use Value: Reduces let-through energy to secondary protectors, enabling smaller, faster-response secondary stages and improved system MTBF. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ10A | Lower PPPM (400 W), higher VC (16.7 V at 24.7 A), same DO-214AC (SMA) package - not pin-compatible with DO-214AB. | Targeted at consumer-grade, lower-energy transients; unsuitable for automotive load-dump or industrial motor drive spikes. | Select only for cost-sensitive, non-automotive applications where 3000 W surge immunity is unnecessary. |
| 1.5KE10A | Higher power (1500 W), axial-leaded DO-201AD package, slower response due to higher parasitic inductance - incompatible with SMT-only designs. | Used in legacy through-hole power supplies; lacks AEC-Q101 qualification and MSL Level 1 rating. | Choose only when board redesign for SMT is impractical and automotive qualification is not required. |
Compared with SMAJ10A and 1.5KE10A, the 3KASMC10AHE3_A/I delivers 7.5× higher peak pulse power in an AEC-Q101-qualified SMT package with superior thermal robustness (TJ = 185 °C), making it the sole option for modern automotive and high-reliability industrial designs requiring both space efficiency and extreme surge resilience.
Availability
3KASMC10AHE3_A/I is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, motor drive gate driver circuits, and telecom DC power input stages requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for 3KASMC10AHE3_A/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 high-reliability diodes, rectifiers, and protection devices engineered for automotive, industrial, and computing applications.
The 3KASMC series is part of Vishay's PAR® (Protection Against Transients) family, developed specifically to meet stringent AEC-Q101 requirements and deliver high-temperature-stable transient suppression for next-generation automotive and harsh-environment electronics.
FAQ
What is the maximum junction temperature rating for the 3KASMC10AHE3_A/I?
The 3KASMC10AHE3_A/I has a maximum junction temperature (TJ) rating of +185 °C, validated per AEC-Q101 stress testing. This enables reliable operation in under-hood automotive environments and high-ambient industrial settings without thermal derating. The 3KASMC10AHE3_A/I maintains stable clamping performance up to this limit, supporting extended lifetime in thermally demanding applications.
Is the 3KASMC10AHE3_A/I RoHS-compliant and halogen-free?
Yes, the 3KASMC10AHE3_A/I is RoHS-compliant per Directive 2011/65/EU and halogen-free per JEDEC JS709A standards. Its base P/NHM3 construction meets both requirements, and the "_A/I" suffix denotes tape-and-reel packaging with full material compliance documentation available from Vishay upon request. The 3KASMC10AHE3_A/I satisfies environmental mandates for global automotive and industrial deployments.
Does the 3KASMC10AHE3_A/I have AEC-Q101 qualification?
Yes, the 3KASMC10AHE3_A/I is fully AEC-Q101 qualified, as confirmed in Vishay document 89962. This qualification covers temperature cycling, high-temperature operating life, ESD, and mechanical shock testing required for automotive semiconductor components. The 3KASMC10AHE3_A/I is approved for use in safety-critical vehicle subsystems including engine control, ADAS, and body electronics.
What is the clamping voltage of the 3KASMC10AHE3_A/I at its rated peak pulse current?
The 3KASMC10AHE3_A/I exhibits a maximum clamping voltage (VC) of 17.0 V at its rated peak pulse current (IPPM) of 177 A, measured using the standardized 10/1000 μs waveform. This low VC/VBR ratio (1.43) ensures effective protection of 12 V logic and analog circuits while minimizing stress on downstream components. The 3KASMC10AHE3_A/I achieves this performance with minimal voltage overshoot due to low incremental surge resistance.
What packaging format does the 3KASMC10AHE3_A/I ship in?
The 3KASMC10AHE3_A/I ships in 13-inch diameter plastic tape-and-reel format (package code "I"), with 3500 units per reel. This packaging supports high-speed automated SMT placement and complies with EIA-481 standards. The tape features embossed pockets, cover tape with heat-seal adhesive, and sprocket holes aligned to industry-standard pitch - ensuring consistent feeding and placement accuracy for the 3KASMC10AHE3_A/I in production environments.
3KASMC10AHE3_A/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- PAR®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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 (SMCJ)
3KASMC10AHE3_A/I FAQ
1.How can I place an order for 3KASMC10AHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for 3KASMC10AHE3_A/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 3KASMC10AHE3_A/I reliable?
The price and inventory of 3KASMC10AHE3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 3KASMC10AHE3_A/I is usually 5 days.
3.What payment methods are accepted for 3KASMC10AHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 3KASMC10AHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 3KASMC10AHE3_A/I?
3KASMC10AHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 3KASMC10AHE3_A/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 3KASMC10AHE3_A/I?
For technical support, including 3KASMC10AHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 3KASMC10AHE3_A/I requirements.
6.How does Aetrix verify that 3KASMC10AHE3_A/I is sourced from the original manufacturer or authorized distributors?
All 3KASMC10AHE3_A/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 3KASMC10AHE3_A/I meets industry standards.
7.What is the process for return or replacement of 3KASMC10AHE3_A/I?
All 3KASMC10AHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with 3KASMC10AHE3_A/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 3KASMC10AHE3_A/I part is unused and in its original packaging.
Return procedure for 3KASMC10AHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
3KASMC10AHE3_A/I Tags
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