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Vishay General Semiconductor - Diodes Division 1.5SMC11CAHM3/H
- Part No.:
- 1.5SMC11CAHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC11CAHM3/H.pdf
- Description:
- TVS DIODE 9.4VWM 15.6VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,916
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Product details
Overview
1.5SMC11CAHM3/H from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode designed for robust overvoltage protection in power and signal lines. It features a 11 V breakdown voltage (VBR), 9.4 V stand-off voltage (VWM), 1500 W peak pulse power (10/1000 µs), 96.2 A peak pulse current (IPPM), and clamps to 15.6 V at rated surge. It is used in automotive sensor interfaces, industrial I/O protection, and telecom line conditioning.
For engineers reviewing the 1.5SMC11CAHM3/H datasheet, 1.5SMC11CAHM3/H pinout, 1.5SMC11CAHM3/H application, or 1.5SMC11CAHM3/H equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, SMC (DO-214AB) package details, clamping performance under transient stress, and direct alternatives for design-in flexibility.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, with identical VBR (10.5–11.6 V), VWM (9.4 V), and VC (15.6 V) specifications in either direction. Its glass-passivated junction ensures stable avalanche behavior and low leakage (<5 µA at VWM).
Rated for 1500 W peak pulse power per 10/1000 µs waveform and 200 A non-repetitive forward surge (unidirectional mode only), it delivers fast response time (<1.0 ns) and low dynamic impedance. Thermal resistance is 75 °C/W (junction-to-ambient) on standard 8.0 mm × 8.0 mm copper pads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 10.5 V / 11.6 V - Ensures reliable avalanche conduction onset within tight tolerance for precise overvoltage triggering |
| VWM | 9.4 V - Maximum continuous reverse operating voltage before leakage exceeds 5 µA; defines safe working margin below clamp |
| VC @ IPPM | 15.6 V - Clamped voltage during 96.2 A transient; limits downstream IC stress to safe levels in surge events |
| PPPM | 1500 W - Peak surge energy handling capability with 10/1000 µs waveform; supports IEC 61000-4-5 Level 4 compliance |
| IPPM | 96.2 A - Maximum non-repetitive surge current; determines minimum trace width and PCB layout robustness |
| TJ max. | +150 °C - Enables operation in under-hood automotive environments and high-temperature industrial enclosures |
| AEC-Q101 Qualified | Yes - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD per AEC specification |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, halogen-free, RoHS-compliant, MSL level 1 (260 °C peak reflow). Dimensions: 7.75 mm × 6.22 mm × 2.62 mm (L × W × H); cathode band absent (bidirectional symmetry).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (negative polarity) | One terminal of symmetrical PN junction; accepts surge current from either polarity without polarity marking |
| Cathode | Transient current exit (positive polarity) | Second terminal of symmetrical structure; completes bidirectional conduction path during voltage reversal |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Identical VBR, VC, and IPPM in both directions - eliminates polarity concerns in AC-coupled or floating signal paths |
| 1500 W peak pulse rating | Withstands 10/1000 µs surges up to 96.2 A - meets IEC 61000-4-5 surge immunity requirements for industrial and automotive ports |
| AEC-Q101 qualified (HM3 suffix) | Validated for automotive applications including engine control modules, ADAS sensors, and infotainment power rails |
| Low clamping ratio (VC/VBR ≈ 1.43) | Minimizes overvoltage overshoot during transients - protects 12 V logic interfaces and 3.3 V/5 V microcontrollers |
| MSL Level 1 moisture sensitivity | Zero bake requirement before reflow - enables direct placement into high-volume SMT assembly without dry-pack handling |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and inductive switching spikes in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional TVS placed across differential signal pair or supply rail to clamp ±100 V transients within nanoseconds. Use Value: Prevents latch-up or gate oxide damage in 3.3 V sensor interface ICs by limiting voltage to ≤15.6 V during 10/1000 µs surges. |
Use Scenario: Safeguarding 24 V digital input modules in programmable logic controllers against field-wiring induced surges and ground bounce. IC Role / Device Role / Timing Role: Parallel-connected TVS on each channel input to shunt >1 kV transients before reaching optocoupler or Schmitt trigger inputs. Use Value: Maintains functional safety integrity by ensuring no false triggering or permanent failure during repetitive 1500 W surge events. |
| Telecom Line Interface | Consumer Power Adapter Input |
Use Scenario: Surge suppression on Ethernet PHY power pins (e.g., MDI-X bias rails) and RS-485 data lines exposed to lightning-induced coupling. IC Role / Device Role / Timing Role: Low-capacitance bidirectional TVS placed adjacent to connector to minimize stub length and preserve signal integrity. Use Value: Limits clamping voltage to 15.6 V while adding <10 pF capacitance - avoids signal distortion in 100 Mbps+ differential links. |
Use Scenario: Secondary-side overvoltage protection in AC/DC adapters for USB-C PD and smart home devices subjected to mains-borne transients. IC Role / Device Role / Timing Role: Clamp device across 12 V output rail to absorb residual surges escaping primary-side MOV and Y-cap filtering. Use Value: Extends end-product lifetime by preventing premature failure of DC-DC regulators and USB port controllers during repeated surge exposure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ11CA | Lower PPPM (600 W), smaller SMB package (DO-214AA), same VWM/VBR range | Not suitable for IEC 61000-4-5 Level 4; limited to lower-energy surges in space-constrained consumer designs | Select when board area is critical and surge threat level is ≤ Level 3; verify thermal derating on small pads |
| 1.5KE11CA | Through-hole TO-218 package, same electrical specs but higher RθJA (50 °C/W), no AEC-Q101 qualification | Used in legacy industrial power supplies where reworkability and manual assembly are prioritized over automotive compliance | Choose for prototyping or low-volume repair scenarios requiring hand-soldering; not recommended for new automotive designs |
Compared with SMBJ11CA and 1.5KE11CA, the 1.5SMC11CAHM3/H uniquely combines AEC-Q101 qualification, 1500 W surge capacity, and SMC footprint-enabling single-source compliance for automotive Tier 1 suppliers needing drop-in replacement capability without layout revision.
Availability
1.5SMC11CAHM3/H is available at Aetrix Electronics and suitable for automotive ECU protection, industrial PLC I/O hardening, and telecom line interface surge suppression requiring stable component supply across multi-year production cycles.
Supply support for 1.5SMC11CAHM3/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 1.5SMC Series was engineered specifically for high-power, surface-mount transient suppression in harsh environments-emphasizing AEC-Q101 qualification, low clamping voltage, and repeatable surge endurance.
FAQ
What is the clamping voltage of the 1.5SMC11CAHM3/H under maximum rated surge current?
The 1.5SMC11CAHM3/H clamps to 15.6 V when subjected to its maximum rated peak pulse current of 96.2 A (10/1000 µs waveform). This value is measured at TA = 25 °C on standard 8.0 mm × 8.0 mm copper pads and represents the upper voltage limit imposed on protected circuitry during worst-case transient events. The 1.5SMC11CAHM3/H maintains this clamping performance consistently across its operational temperature range.
Is the 1.5SMC11CAHM3/H suitable for automotive applications?
Yes, the 1.5SMC11CAHM3/H is AEC-Q101 qualified and explicitly designated for automotive use via the "HM3" suffix, indicating halogen-free, RoHS-compliant construction with full qualification testing. It is deployed in engine control units, ADAS camera modules, and body electronics where protection against load dump, jump start, and ISO 7637-2 pulses is required. The 1.5SMC11CAHM3/H meets all stress test requirements defined in the AEC-Q101 standard.
How does the bidirectional configuration of the 1.5SMC11CAHM3/H affect its circuit implementation?
The 1.5SMC11CAHM3/H has no polarity marking and conducts identically in both directions, making it ideal for AC-coupled lines, differential buses (e.g., CAN, RS-485), or floating power domains where voltage reversals occur. Unlike unidirectional TVS diodes, the 1.5SMC11CAHM3/H requires no orientation check during placement and provides symmetrical protection without additional series components. Its bidirectional behavior is confirmed by matched VBR, VC, and IPPM values in both polarities.
What is the maximum operating junction temperature for the 1.5SMC11CAHM3/H?
The 1.5SMC11CAHM3/H has a maximum junction temperature (TJ) rating of +150 °C, enabling reliable operation in under-hood automotive environments and sealed industrial enclosures. This rating is supported by its glass-passivated chip junction and thermally optimized SMC (DO-214AB) package. Derating curves in the Vishay datasheet document allowable power dissipation versus ambient temperature, and the 1.5SMC11CAHM3/H remains fully functional up to its TJ limit without parameter shift or failure.
Does the 1.5SMC11CAHM3/H require special PCB layout considerations?
Yes-the 1.5SMC11CAHM3/H must be mounted on minimum recommended copper pad areas (0.31" × 0.31" / 8.0 mm × 8.0 mm per terminal) to achieve its rated 1500 W peak pulse power and 96.2 A IPPM. Short, wide traces between the 1.5SMC11CAHM3/H and protected node reduce inductance and prevent voltage overshoot. Thermal vias under pads improve heat dissipation, especially in high-duty-cycle applications. Layout deviations directly degrade surge handling capability.
1.5SMC11CAHM3/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- 1.5SMC, TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 9.4V
- Voltage - Breakdown (Min):
- 10.5V
- Voltage - Clamping (Max) @ Ipp:
- 15.6V
- Current - Peak Pulse (10/1000µs):
- 96.2A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
1.5SMC11CAHM3/H FAQ
1.How can I place an order for 1.5SMC11CAHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC11CAHM3/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 1.5SMC11CAHM3/H reliable?
The price and inventory of 1.5SMC11CAHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC11CAHM3/H is usually 5 days.
3.What payment methods are accepted for 1.5SMC11CAHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC11CAHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC11CAHM3/H?
1.5SMC11CAHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC11CAHM3/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 1.5SMC11CAHM3/H?
For technical support, including 1.5SMC11CAHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC11CAHM3/H requirements.
6.How does Aetrix verify that 1.5SMC11CAHM3/H is sourced from the original manufacturer or authorized distributors?
All 1.5SMC11CAHM3/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 1.5SMC11CAHM3/H meets industry standards.
7.What is the process for return or replacement of 1.5SMC11CAHM3/H?
All 1.5SMC11CAHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC11CAHM3/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 1.5SMC11CAHM3/H part is unused and in its original packaging.
Return procedure for 1.5SMC11CAHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC11CAHM3/H Tags
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