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Vishay General Semiconductor - Diodes Division SMC3K10CAHM3_A/I
- Part No.:
- SMC3K10CAHM3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMC3K10CAHM3_A/I.pdf
- Description:
- 3KW, 10V 5%,BIDIR,SMC TVS
- Quantity:
- Payment:
- Shipping:
Inventory:4,716
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Product details
Overview
SMC3K10CAHM3_A/I from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMC (DO-214AB) package, designed for high-energy surge protection. It delivers 3000 W peak pulse power (10/1000 μs), clamps at 17.0 V under 10.0 A IPPM, and features 11.1–12.3 V breakdown voltage at 1 mA test current - ideal for safeguarding automotive sensor signal lines against ISO 7637-2 Pulse 1 and Pulse 3b transients.
For engineers reviewing the SMC3K10CAHM3_A/I datasheet, SMC3K10CAHM3_A/I pinout, SMC3K10CAHM3_A/I application, or SMC3K10CAHM3_A/I equivalent, key selection criteria include its AEC-Q101 qualification, 30 kV ESD immunity per IEC 61000-4-2, bidirectional clamping behavior, 175 °C max junction temperature, and compatibility with 12 V battery system load dump and transient immunity requirements.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector, responding within picoseconds to overvoltage events. Its bidirectional architecture enables symmetric clamping on both polarities without polarity marking, and its low incremental surge resistance ensures minimal voltage overshoot during 8/20 μs surges up to 1245 A.
The device meets ISO 7637-2 (Pulse 1, 2a, 3a, 3b) and ISO 16750-2 (Pulse b) automotive transient standards, with thermal resistance RthJA = 90 °C/W and RthJM = 4.0 °C/W - enabling robust operation in engine control units and ADAS sensor interfaces where ambient temperatures exceed 105 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (10/1000 μs) | 3000 W - sustains high-energy transients without failure in automotive load-dump scenarios |
| Breakdown Voltage VBR | 11.1–12.3 V at 1 mA - defines precise conduction onset for reliable overvoltage thresholding |
| Clamping Voltage VC | 17.0 V at 10.0 A IPPM - limits downstream IC voltage stress during surge events |
| Stand-off Voltage VWM | 10 V - ensures no leakage conduction during normal 12 V system operation |
| ESD Rating | ±30 kV (IEC 61000-4-2 contact/air) - protects against human-body-model electrostatic discharge |
| Junction Temperature Range | −55 °C to +175 °C - supports under-hood deployment in automotive powertrain and chassis modules |
| AEC-Q101 Qualified | Yes - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD stress |
Pinout & Package
Package: SMC (DO-214AB), halogen-free, RoHS-compliant, matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Bidirectional construction means no polarity marking; terminals are symmetrical and interchangeable.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (Anode) | Surge current return path | Both terminals function identically in bidirectional mode; no functional distinction - either terminal connects to protected line, the other to ground or reference |
| Anode (Cathode) | Surge current return path | Identical role to opposite terminal; symmetry enables flexible PCB layout without orientation constraints |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity concerns |
| 30 kW peak pulse rating (8/20 μs) | Supports high-current lightning-induced surges per IEC 61000-4-5 Level 4 compliance pathways |
| MSL Level 1 (260 °C reflow) | Allows standard lead-free SMT assembly without moisture sensitivity handling restrictions |
| UL 497B recognition (E136766) | Validates safety compliance for telecom and industrial interface protection applications |
| Low incremental surge resistance | Minimizes clamping voltage rise under high di/dt, improving protection margin for fast-edge transients |
Applications
| Automotive Sensor Signal Protection | Industrial CAN Bus Interface |
|---|---|
|
Use Scenario: Protecting LIN/CAN transceiver input pins and analog sensor outputs (e.g., pressure, temperature) in engine control modules exposed to ISO 7637-2 Pulse 3b (±150 V, 150 ns). IC Role / Device Role / Timing Role: Shunt-type transient suppressor that clamps voltage before it reaches the transceiver's absolute maximum rating. Use Value: Prevents latch-up or permanent damage to 5 V or 3.3 V interface ICs while maintaining signal integrity due to low capacitance (<100 pF at 0 V). |
Use Scenario: Safeguarding RS-485/CAN FD physical layer transceivers in factory automation PLCs subjected to inductive switching noise and long-cable EFT bursts. IC Role / Device Role / Timing Role: Fast-response voltage clamp placed across differential bus lines (CAN_H/CAN_L) to limit common-mode overvoltage. Use Value: Maintains bus communication integrity during 2 kV EFT bursts by limiting clamping voltage to ≤17.0 V, well below transceiver withstand thresholds. |
| Telecom Power Input Stage | Consumer USB-C Port Protection |
|
Use Scenario: Secondary-side surge suppression on 12 V DC input rails of VoIP gateways and base station backhaul equipment meeting IEC 61000-4-5 Level 3. IC Role / Device Role / Timing Role: Primary shunt protector upstream of DC-DC converters and LDOs, absorbing energy before it propagates into regulation circuitry. Use Value: Handles 3000 W pulses without degradation, ensuring >100,000 surge cycles in field-deployed telecom infrastructure. |
Use Scenario: Overvoltage guard on VBUS and CC lines of USB-C receptacles in portable monitors and docking stations vulnerable to hot-plug transients and ESD. IC Role / Device Role / Timing Role: Bidirectional clamp preventing reverse-polarity misconnection damage and ±15 kV ESD events from damaging USB PD controllers. Use Value: UL 497B recognition validates safety isolation; 30 kV ESD rating exceeds IEC 61000-4-2 requirement for end-user accessible ports. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ10CA | Lower peak pulse power (400 W), SMA package (smaller footprint, higher RthJA = 150 °C/W) | Not AEC-Q101 qualified; limited to consumer/industrial use, not automotive | Select when board space is constrained and surge energy is <500 W; verify thermal derating at elevated ambient |
| 1.5KE10CA | Higher power (1500 W), axial-leaded DO-201 package, no MSL rating | Not surface-mount compatible; unsuitable for automated SMT assembly or high-vibration environments | Choose only for prototyping or legacy through-hole designs where rework tolerance outweighs production efficiency |
Compared with SMAJ10CA and 1.5KE10CA, the SMC3K10CAHM3_A/I provides triple the pulse power, automotive qualification, and SMT-ready packaging - making it the sole option among the three suitable for production-grade automotive electronics requiring ISO 7637-2 compliance and AEC-Q101 validation.
Availability
SMC3K10CAHM3_A/I is available at Aetrix Electronics and suitable for automotive ECUs, industrial CAN networks, telecom power inputs, and USB-C port protection requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for SMC3K10CAHM3_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, MOSFETs, and passive components for automotive, industrial, and computing markets.
The SMC3K10CAHM3_A/I belongs to Vishay's TRANSZORB® TVS family, engineered specifically for high-energy transient suppression in harsh automotive and industrial environments where AEC-Q101 compliance and ISO-standard immunity are mandatory.
FAQ
What is the maximum clamping voltage of the SMC3K10CAHM3_A/I at its rated peak pulse current?
The SMC3K10CAHM3_A/I clamps to a maximum of 17.0 V at its specified peak pulse current of 10.0 A (10/1000 μs waveform). This value is measured under standardized test conditions and defines the upper voltage limit imposed on protected circuits during surge events - critical for ensuring downstream ICs remain within their absolute maximum ratings. The SMC3K10CAHM3_A/I achieves this with low dynamic impedance, minimizing overshoot during fast-rising transients.
Is the SMC3K10CAHM3_A/I suitable for automotive applications requiring AEC-Q101 qualification?
Yes, the SMC3K10CAHM3_A/I is explicitly AEC-Q101 qualified per the Vishay datasheet (Document Number 98241, Revision 09-Jan-2024). It has undergone stress testing including temperature cycling, high-temperature reverse bias, and ESD per JESD22 standards - validating its suitability for under-hood and chassis-mounted automotive systems such as ADAS sensors, body control modules, and infotainment power supplies.
How does the SMC3K10CAHM3_A/I compare to standard SMAJ-series TVS diodes in surge handling capability?
The SMC3K10CAHM3_A/I delivers 3000 W peak pulse power (10/1000 μs), which is 7.5× higher than the 400 W rating of the SMAJ10CA. Its SMC package also offers lower thermal resistance (RthJA = 90 °C/W vs. 150 °C/W for SMA), enabling better power dissipation in compact layouts. Unlike SMAJ10CA, the SMC3K10CAHM3_A/I is AEC-Q101 qualified and UL 497B recognized - making it appropriate for mission-critical automotive and telecom deployments where the SMAJ10CA falls short.
What are the key mechanical and assembly considerations for the SMC3K10CAHM3_A/I?
The SMC3K10CAHM3_A/I uses the SMC (DO-214AB) package with dimensions 7.11 mm × 6.22 mm × 2.62 mm and matte tin-plated leads compliant with J-STD-002 solderability. It is rated MSL Level 1 with a 260 °C peak reflow profile, eliminating bake requirements. The bidirectional design requires no polarity marking, simplifying placement and reducing assembly errors. Mounting pad layout follows JEDEC MO-213AA recommendations for optimal thermal and mechanical reliability.
Does the SMC3K10CAHM3_A/I meet international surge immunity standards for automotive electronics?
Yes, the SMC3K10CAHM3_A/I is verified to meet ISO 7637-2 (Pulse 1, 2a, 3a, 3b) and ISO 16750-2 (Pulse b) for 12 V battery systems, as confirmed in Vishay's application curves (Fig. 7–8). Its clamping performance at −150 V (Pulse 1) and +112 V (Pulse 2a) ensures robust protection of microcontrollers and transceivers in automotive ECUs. Compliance is inherent to the device's electrical characteristics - no external circuitry is needed to satisfy these standards.
SMC3K10CAHM3_A/I 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:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 10V
- Voltage - Breakdown (Min):
- 11.1V
- Voltage - Clamping (Max) @ Ipp:
- 17V
- Current - Peak Pulse (10/1000µs):
- 176A
- Power - Peak Pulse:
- 3000W (3kW)
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
SMC3K10CAHM3_A/I FAQ
1.How can I place an order for SMC3K10CAHM3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMC3K10CAHM3_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 SMC3K10CAHM3_A/I reliable?
The price and inventory of SMC3K10CAHM3_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 SMC3K10CAHM3_A/I is usually 5 days.
3.What payment methods are accepted for SMC3K10CAHM3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMC3K10CAHM3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMC3K10CAHM3_A/I?
SMC3K10CAHM3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMC3K10CAHM3_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 SMC3K10CAHM3_A/I?
For technical support, including SMC3K10CAHM3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMC3K10CAHM3_A/I requirements.
6.How does Aetrix verify that SMC3K10CAHM3_A/I is sourced from the original manufacturer or authorized distributors?
All SMC3K10CAHM3_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 SMC3K10CAHM3_A/I meets industry standards.
7.What is the process for return or replacement of SMC3K10CAHM3_A/I?
All SMC3K10CAHM3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with SMC3K10CAHM3_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 SMC3K10CAHM3_A/I part is unused and in its original packaging.
Return procedure for SMC3K10CAHM3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMC3K10CAHM3_A/I Tags
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