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Vishay General Semiconductor - Diodes Division SMC3K10CAHM3_A/H
- Part No.:
- SMC3K10CAHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMC3K10CAHM3_A/H.pdf
- Description:
- 3KW, 10V 5%,BIDIR,SMC TVS
- Quantity:
- Payment:
- Shipping:
Inventory:1,654
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Product details
Overview
SMC3K10CAHM3_A/H from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode designed for robust overvoltage protection in automotive and industrial power lines. It delivers 3000 W peak pulse power (10/1000 μs), clamps at 17.0 V under 10.0 A surge current, and features a 11.1–12.3 V breakdown voltage at 1 mA test current. It is AEC-Q101 qualified and used to protect MOSFETs and ICs against ISO 7637-2 Pulse 1 and ISO 16750-2 Pulse b transients.
For engineers reviewing the SMC3K10CAHM3_A/H datasheet, SMC3K10CAHM3_A/H pinout, SMC3K10CAHM3_A/H application, or SMC3K10CAHM3_A/H equivalent, key selection criteria include its 10 V stand-off voltage, 175 °C max junction temperature, bidirectional polarity, SMC (DO-214AB) package, and 30 kV ESD immunity per IEC 61000-4-2 - all critical for automotive-grade transient suppression design.
Technical Context
This TVS diode operates as a voltage-clamping device across power rails or signal lines, activating when reverse voltage exceeds its breakdown threshold (VBR = 11.1–12.3 V). Its low incremental surge resistance enables rapid energy diversion during fast transients like 8/20 μs lightning surges (30 kW capability) and load-dump events.
The device uses an avalanche-based silicon junction structure with no polarity marking due to bidirectional symmetry. It meets J-STD-020 MSL Level 1, supports 260 °C lead-free reflow, and achieves 30 kV contact-mode ESD protection - confirming suitability for harsh automotive environments per AEC-Q101.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage (VBR) | 11.1 V min to 12.3 V max at 1 mA - defines precise turn-on threshold for clamping initiation |
| Stand-off Voltage (VWM) | 10 V - maximum continuous reverse voltage before leakage exceeds 10 μA; sets safe operating margin below VBR |
| Clamping Voltage (VC) | 17.0 V at 10.0 A (10/1000 μs) - actual voltage seen by protected circuit during rated surge |
| Peak Pulse Power (PPPM) | 3000 W (10/1000 μs) - determines survivability against common automotive transients like ISO 7637-2 Pulse 1 |
| Junction Temperature Range | −55 °C to +175 °C - enables operation in under-hood automotive locations and industrial motor drives |
| ESD Immunity | 30 kV per IEC 61000-4-2 (contact/air) - protects downstream sensors and communication interfaces from static discharge |
| Package | SMC (DO-214AB) - industry-standard 2-pin surface-mount outline with 7.11 mm × 6.22 mm footprint and 2.62 mm height |
Pinout & Package
SMC3K10CAHM3_A/H is housed in a bidirectional SMC (DO-214AB) package with two unmarked terminals. The device has no polarity marking; both leads serve identical roles in clamping either polarity of transient voltage.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (unmarked) | Transient voltage clamp node | Both terminals connect symmetrically across protected line and ground; no directional installation required |
| Anode/Cathode (unmarked) | Transient voltage clamp node | Completes low-impedance path to divert surge current away from sensitive components during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Protects AC-coupled or dual-polarity circuits without requiring orientation-aware placement |
| AEC-Q101 qualification | Validated reliability for automotive powertrain, body electronics, and ADAS modules under temperature cycling and humidity stress |
| 30 kW surge rating (8/20 μs) | Withstands high-energy lightning-induced surges common in telecom and industrial field wiring |
| Halogen-free, RoHS-compliant | Meets global environmental compliance requirements for automotive OEM supply chains |
| MSL Level 1 moisture sensitivity | Enables standard SMT assembly without dry-pack or baking preconditioning |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump and inductive switching spikes per ISO 16750-2 Pulse b and ISO 7637-2 Pulse 1. IC Role / Device Role / Timing Role: Voltage-clamping TVS placed directly across input rail to suppress transients before they reach DC/DC converters or microcontrollers. Use Value: Limits rail voltage to ≤17.0 V during 10 A surges, preventing latch-up or permanent damage to 3.3 V/5 V logic supplies. |
Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) in factory automation systems from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance (<100 pF at 0 V) shunt protector on differential or single-ended signal lines near connector entry points. Use Value: Clamps 30 kV ESD strikes to <35 V within nanoseconds, preserving signal integrity and ADC accuracy without adding filtering delay. |
| Telecom Power Feeds | Motor Drive Control Board Inputs |
Use Scenario: Safeguarding PoE-powered equipment inputs against induced surges from nearby lightning or AC mains coupling. IC Role / Device Role / Timing Role: Primary-stage TVS on 48 V DC input, coordinated with secondary-stage MOVs and current-limiting resistors. Use Value: Absorbs up to 30 kW (8/20 μs) without degradation, maintaining system uptime in outdoor telecom cabinets. |
Use Scenario: Protecting gate driver enable lines and feedback signals in BLDC motor controllers exposed to commutation noise and back-EMF spikes. IC Role / Device Role / Timing Role: Fast-response (sub-nanosecond) clamp on isolated control traces routed near high-dV/dt power switches. Use Value: Prevents false triggering or latch-up in gate drivers by limiting transient excursions to <20 V, ensuring reliable motor sequencing. |
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 thermal mass), 10.0–11.1 V VBR | Not AEC-Q101 qualified; limited to consumer/industrial use, not automotive | Select when cost and board space are prioritized over automotive reliability and high-energy surge handling |
| 1.5KE10CA | Through-hole DO-201 package, 1500 W PPPM, same VWM/VBR range but higher clamping (20.1 V @ 75 A) | Requires PCB through-hole mounting; unsuitable for high-density SMT designs | Choose only for legacy through-hole systems where rework tolerance and manual assembly outweigh SMT efficiency needs |
Compared with SMAJ10CA and 1.5KE10CA, SMC3K10CAHM3_A/H provides 7.5× higher surge power than SMAJ10CA and 2× higher than 1.5KE10CA while maintaining AEC-Q101 qualification and SMC footprint - making it the sole option for new automotive SMT designs requiring ISO 16750-2 compliance.
Availability
SMC3K10CAHM3_A/H is available at Aetrix Electronics and suitable for automotive ECU protection, industrial sensor interface hardening, and telecom power feed surge suppression requiring stable component supply and long-term lifecycle support.
Supply support for SMC3K10CAHM3_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 high-reliability diodes, MOSFETs, and passive components for automotive, industrial, and computing markets.
The SMC3K series is part of Vishay's TRANSZORB® TVS platform, engineered specifically for AEC-Q101-compliant automotive transient suppression with emphasis on ISO 7637-2 and ISO 16750-2 compliance.
FAQ
What is the maximum clamping voltage of SMC3K10CAHM3_A/H under a 10/1000 μs surge?
The SMC3K10CAHM3_A/H clamps to a maximum of 17.0 V when subjected to a 10.0 A peak pulse current with a 10/1000 μs waveform. This value is measured at room temperature and defines the upper voltage limit imposed on protected circuitry during standardized surge events, ensuring compatibility with 12 V automotive systems and downstream 5 V logic.
Is SMC3K10CAHM3_A/H suitable for automotive applications?
Yes, SMC3K10CAHM3_A/H is AEC-Q101 qualified and explicitly tested to meet ISO 7637-2 (Pulse 1, 2a, 3a, 3b) and ISO 16750-2 (Pulse b) standards. Its 175 °C maximum junction temperature, halogen-free construction, and MSL Level 1 rating confirm its suitability for under-hood and body-control module deployments where thermal and reliability demands are stringent.
What does the "HM3_A" suffix indicate in SMC3K10CAHM3_A/H?
The "HM3_A" suffix denotes Vishay's halogen-free, RoHS-compliant, AEC-Q101-qualified variant with matte tin-plated leads meeting J-STD-002 solderability and JESD 22-B102 whisker resistance (Class 2). The "/H" in SMC3K10CAHM3_A/H specifies packaging in 7-inch tape-and-reel format with 850 units per reel - a standard logistics configuration for SMT production.
How does SMC3K10CAHM3_A/H compare to unidirectional TVS diodes in circuit design?
SMC3K10CAHM3_A/H is bidirectional and requires no polarity consideration during placement, simplifying layout and reducing BOM complexity in AC-coupled or dual-rail systems. Unlike unidirectional TVS diodes - which conduct only in reverse bias - SMC3K10CAHM3_A/H clamps both positive and negative transients equally, making it ideal for protecting floating or symmetric signal paths such as CAN bus lines or differential sensor outputs.
What is the thermal resistance specification for SMC3K10CAHM3_A/H?
The SMC3K10CAHM3_A/H has a junction-to-ambient thermal resistance (RthJA) of 90 °C/W and a junction-to-mount thermal resistance (RthJM) of 4.0 °C/W when mounted on a standard FR4 PCB per JEDEC 51-2A and 51-14 test methods. These values inform heatsinking decisions and derating curves for sustained surge duty cycles above 25 °C ambient.
SMC3K10CAHM3_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:
- -
- 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:
- -
- 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/H FAQ
1.How can I place an order for SMC3K10CAHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMC3K10CAHM3_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 SMC3K10CAHM3_A/H reliable?
The price and inventory of SMC3K10CAHM3_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 SMC3K10CAHM3_A/H is usually 5 days.
3.What payment methods are accepted for SMC3K10CAHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMC3K10CAHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMC3K10CAHM3_A/H?
SMC3K10CAHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMC3K10CAHM3_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 SMC3K10CAHM3_A/H?
For technical support, including SMC3K10CAHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMC3K10CAHM3_A/H requirements.
6.How does Aetrix verify that SMC3K10CAHM3_A/H is sourced from the original manufacturer or authorized distributors?
All SMC3K10CAHM3_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 SMC3K10CAHM3_A/H meets industry standards.
7.What is the process for return or replacement of SMC3K10CAHM3_A/H?
All SMC3K10CAHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with SMC3K10CAHM3_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 SMC3K10CAHM3_A/H part is unused and in its original packaging.
Return procedure for SMC3K10CAHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMC3K10CAHM3_A/H Tags
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