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Vishay General Semiconductor - Diodes Division SMC5K17AHM3_A/H
- Part No.:
- SMC5K17AHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMC5K17AHM3_A/H.pdf
- Description:
- TVS DIODE 17VWM 27.6VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:5,062
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Product details
Overview
SMC5K17AHM3_A/H from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) in SMC (DO-214AB) package, designed for high-energy surge protection of sensitive electronics. It features 18.9 V to 20.9 V breakdown voltage (VBR), 17 V stand-off voltage (VWM), and clamps transients to ≤27.6 V at 181 A (10/1000 μs), with 5000 W peak pulse power rating - ideal for protecting MOSFETs and signal lines in automotive and industrial control systems.
For engineers reviewing the SMC5K17AHM3_A/H datasheet, SMC5K17AHM3_A/H pinout, SMC5K17AHM3_A/H application, or SMC5K17AHM3_A/H equivalent, key selection criteria include its AEC-Q101 qualification, 30 kV ESD immunity per IEC 61000-4-2, low clamping ratio (1.62×VWM), MSL Level 1 moisture sensitivity, and halogen-free RoHS-compliant construction - all critical for automotive-grade board-level surge resilience.
Technical Context
This TVS diode operates as a unidirectional clamping device, leveraging avalanche breakdown to divert transient energy away from downstream circuitry. Its low incremental surge resistance and fast response time (<1 ns) ensure effective suppression of inductive switching spikes and lightning-induced surges on DC power rails and signal paths.
Designed for operation across -55 °C to +150 °C junction temperature range, it maintains stable clamping performance under thermal stress. The SMC (DO-214AB) package provides robust thermal dissipation (RthJA = 90 °C/W) and meets UL 94 V-0 flammability requirements, supporting reliable long-term deployment in harsh environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 18.9 V / 20.9 V - defines minimum voltage at which avalanche conduction begins reliably at 1 mA test current |
| VWM | 17 V - maximum continuous reverse operating voltage before leakage exceeds 2 μA |
| VC @ IPPM (10/1000 μs) | 27.6 V - clamping voltage seen by protected circuit during 181 A transient, limiting stress to safe levels |
| PPPM | 5000 W - peak pulse power handling capability under standardized 10/1000 μs waveform |
| IPPM (10/1000 μs) | 181 A - maximum non-repetitive surge current the device can safely clamp without degradation |
| Junction Temp Range | -55 °C to +150 °C - enables use in under-hood automotive and industrial motor drive environments |
| ESD Rating | 30 kV (HBM, contact & air) - exceeds IEC 61000-4-2 Level 4 for system-level ESD robustness |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, cathode-indicating band, matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection point for unidirectional clamping path | Connected to ground or low-impedance return path; completes transient current loop during overvoltage events |
| Cathode | High-side connection point tied to protected line | Connected to input rail or signal line; blocks normal operation up to VWM, avalanches above VBR |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and body electronics per stress test requirements |
| 5000 W peak pulse power (10/1000 μs) | Enables protection against high-energy transients from load dump or inductive kick in 12 V/24 V systems |
| Clamping voltage ≤27.6 V at 181 A | Ensures downstream ICs rated for ≤30 V absolute maximum survive worst-case surge conditions |
| MSL Level 1, 260 °C reflow compatible | Supports standard lead-free SMT assembly without preconditioning or special handling |
| Halogen-free, RoHS-compliant | Meets global environmental compliance mandates for automotive and industrial OEM supply chains |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump transients up to ISO 7637-2 Pulse 5a (110 V, 400 ms). IC Role / Device Role: Unidirectional TVS placed between power rail and chassis ground to clamp overvoltage before reaching LDOs and microcontrollers. Use Value: Withstands 5000 W surges and clamps to 27.6 V, preventing latch-up or permanent damage to 3.3 V/5 V logic downstream. |
Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) from ESD and cable discharge events in factory automation. IC Role / Device Role: Low-capacitance TVS mounted at connector interface to shunt fast transients before entering ADC front-end. Use Value: 30 kV HBM ESD rating and sub-1 ns response preserve signal integrity while enabling Class 4 IEC 61000-4-2 compliance. |
| MOSFET Gate Driver Protection | Telecom DC Power Input Protection |
|
Use Scenario: Safeguarding high-side N-channel MOSFET gate drivers in motor control inverters exposed to inductive switching noise. IC Role / Device Role: TVS placed between gate driver output and MOSFET gate to suppress dv/dt-induced false turn-on and gate oxide overstress. Use Value: Tight VBR/VWM margin (18.9–20.9 V / 17 V) ensures reliable blocking during 15 V gate drive while clamping gate-voltage spikes. |
Use Scenario: Hardening -48 V telecom rectifier outputs against lightning-induced surges per IEC 61000-4-5 (8/20 μs, 2 kA). IC Role / Device Role: Primary-stage TVS on DC input bus to absorb bulk surge energy before upstream DC/DC converters. Use Value: 1081 A peak current rating (8/20 μs) and 37.0 V clamping enable robust protection without derating converter input specs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ17A-M3/86A | Lower PPPM (400 W), smaller SMA package, VC = 27.6 V @ 14.3 A (10/1000 μs) | Not AEC-Q101 qualified; limited to consumer/industrial grade, lower surge current handling | Select when space-constrained PCB layout prioritizes footprint over automotive qualification and high-current surge margin |
| SMCJ17A-HM3 | Same SMC package, identical VBR/VWM/VC, but rated for 1500 W (10/1000 μs) and not AEC-Q101 qualified | Industrial-only rating; lacks automotive stress validation and 30 kV ESD certification | Choose for cost-sensitive industrial designs where AEC-Q101 and full IEC 61000-4-2 compliance are not required |
Compared with SMAJ17A-M3/86A and SMCJ17A-HM3, the SMC5K17AHM3_A/H delivers 3.3× higher peak pulse power and certified automotive reliability - making it the only option among the three qualified for under-hood ECU protection with guaranteed 30 kV ESD immunity and MSL Level 1 assembly compatibility.
Availability
SMC5K17AHM3_A/H is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, telecom power inputs, and MOSFET gate driver circuits requiring stable component supply with full traceability and lifecycle continuity.
Supply support for SMC5K17AHM3_A/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 reliability, efficiency, and application-specific performance.
The SMC5KxxA series was developed specifically for high-power transient suppression in automotive and industrial environments, combining AEC-Q101 qualification, high-energy clamping, and robust SMC packaging for demanding board-level surge resilience.
FAQ
What is the breakdown voltage range for SMC5K17AHM3_A/H?
The SMC5K17AHM3_A/H has a specified breakdown voltage (VBR) range of 18.9 V to 20.9 V at 1.0 mA test current, measured per ANSI/IEEE C62.35 standards. This tight tolerance ensures consistent avalanche initiation across production lots and supports precise overvoltage protection design margins in 17 V nominal systems.
Is SMC5K17AHM3_A/H qualified for automotive applications?
Yes, the SMC5K17AHM3_A/H carries AEC-Q101 qualification, confirmed in Vishay's official documentation (Document Number: 87742, Revision: 09-Jan-2024). This qualification covers stress tests including HTGB, AC/DC life test, temperature cycling, and ESD - validating its suitability for under-hood and body electronics in passenger vehicles and commercial vehicles.
What is the maximum clamping voltage of SMC5K17AHM3_A/H under a 10/1000 μs surge?
The SMC5K17AHM3_A/H clamps to a maximum of 27.6 V when subjected to its rated peak pulse current of 181 A under the 10/1000 μs waveform. This value is guaranteed across the full operating temperature range and forms the basis for determining safe voltage margins for downstream components such as microcontrollers and gate drivers.
Does SMC5K17AHM3_A/H meet RoHS and halogen-free requirements?
Yes, the SMC5K17AHM3_A/H is halogen-free and RoHS-compliant, as explicitly stated in the Vishay datasheet (Document Number: 87742). The "HM3" suffix denotes compliance with both material restrictions, and the molding compound meets UL 94 V-0 flammability rating - satisfying Tier 1 automotive and industrial environmental compliance mandates.
What is the thermal resistance junction-to-ambient for SMC5K17AHM3_A/H?
The SMC5K17AHM3_A/H has a typical junction-to-ambient thermal resistance (RthJA) of 90 °C/W when mounted on a standard FR4 PCB per JEDEC 51-2A. This value assumes a 2 oz. copper footprint and is critical for estimating steady-state temperature rise during repetitive surge events or elevated ambient conditions in enclosed enclosures.
SMC5K17AHM3_A/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:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 17V
- Voltage - Breakdown (Min):
- 18.9V
- Voltage - Clamping (Max) @ Ipp:
- 27.6V
- Current - Peak Pulse (10/1000µs):
- 181.2A
- Power - Peak Pulse:
- 5000W (5kW)
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCJ)
SMC5K17AHM3_A/H FAQ
1.How can I place an order for SMC5K17AHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMC5K17AHM3_A/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 SMC5K17AHM3_A/H reliable?
The price and inventory of SMC5K17AHM3_A/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMC5K17AHM3_A/H is usually 5 days.
3.What payment methods are accepted for SMC5K17AHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMC5K17AHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMC5K17AHM3_A/H?
SMC5K17AHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMC5K17AHM3_A/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 SMC5K17AHM3_A/H?
For technical support, including SMC5K17AHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMC5K17AHM3_A/H requirements.
6.How does Aetrix verify that SMC5K17AHM3_A/H is sourced from the original manufacturer or authorized distributors?
All SMC5K17AHM3_A/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 SMC5K17AHM3_A/H meets industry standards.
7.What is the process for return or replacement of SMC5K17AHM3_A/H?
All SMC5K17AHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with SMC5K17AHM3_A/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 SMC5K17AHM3_A/H part is unused and in its original packaging.
Return procedure for SMC5K17AHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMC5K17AHM3_A/H Tags
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