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Vishay General Semiconductor - Diodes Division 1.5SMC16CAHM3/I
- Part No.:
- 1.5SMC16CAHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC16CAHM3/I.pdf
- Description:
- TVS DIODE 13.6VWM 22.5VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,161
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Product details
Overview
1.5SMC16CAHM3/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 features 16 V standoff voltage (VWM), 18.2 V minimum breakdown voltage (VBR), 22.5 V maximum clamping voltage (VC) at 66.7 A peak pulse current (IPPM), and 1500 W peak pulse power (PPPM) with 10/1000 μs waveform - deployed to safeguard signal lines and power rails in automotive sensor units and industrial control interfaces.
For engineers reviewing the 1.5SMC16CAHM3/I datasheet, 1.5SMC16CAHM3/I pinout, 1.5SMC16CAHM3/I application, or 1.5SMC16CAHM3/I equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal resistance (RθJA = 75 °C/W), junction temperature range (–65 to +150 °C), and halogen-free RoHS-compliant construction per JESD201 Class 2 whisker test.
Technical Context
This bidirectional TVS operates symmetrically in both polarities, delivering consistent clamping behavior across positive and negative transients without polarity marking. Its glass-passivated junction ensures stable leakage performance (<1.0 μA at VWM) and fast response time (<1.0 ps), enabling effective suppression of ESD, lightning-induced surges, and inductive switching spikes.
The device is rated for 1500 W peak pulse power under 10/1000 μs waveform with 0.01% duty cycle, and supports repetitive surge events when thermally managed via its 75 °C/W junction-to-ambient thermal resistance. It meets MSL Level 1 per J-STD-020 and is qualified to AEC-Q101 for automotive-grade reliability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 13.6 V - maximum reverse stand-off voltage before conduction begins; defines safe operating window for protected circuitry. |
| VBR (min) | 15.2 V - guaranteed minimum breakdown voltage at 1.0 mA test current; ensures predictable turn-on threshold. |
| VC (max) | 22.5 V - maximum clamping voltage at 66.7 A IPPM; limits transient overvoltage seen by downstream ICs. |
| PPPM | 1500 W - peak pulse power handling with 10/1000 μs waveform; enables robust protection against IEC 61000-4-5 Level 4 surges. |
| TJ max | +150 °C - maximum junction temperature; supports operation in under-hood automotive environments and industrial enclosures. |
| RθJA | 75 °C/W - thermal resistance junction-to-ambient on standard 8.0 mm × 8.0 mm copper pads; informs PCB thermal layout requirements. |
| Package | SMC (DO-214AB) - surface-mount outline with 3.20 mm min. lead length and 7.75 mm max. body length; compatible with automated pick-and-place. |
Pinout & Package
Package: SMC (DO-214AB), bidirectional configuration - no polarity marking; symmetrical terminal structure with two identical leads serving as interchangeable anode/cathode terminals depending on transient polarity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Lead 1 | Anode / Cathode (bidirectional) | Interchangeable terminal; conducts during negative or positive transients relative to the other lead. |
| Lead 2 | Anode / Cathode (bidirectional) | Interchangeable terminal; forms symmetrical clamping path with Lead 1 for AC-coupled or floating signal lines. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control modules and ADAS sensor interfaces requiring long-term reliability under thermal cycling and vibration. |
| Halogen-free & RoHS-compliant (HM3 suffix) | Meets environmental compliance mandates for Tier 1 automotive suppliers and industrial OEMs; passes JESD201 Class 2 whisker testing. |
| 1500 W peak pulse power | Withstands IEC 61000-4-5 4th-level surge (4 kV line-earth, 2 kV line-line) without degradation when mounted per recommended pad layout. |
| Low clamping ratio (VC/VBR ≈ 1.48) | Minimizes let-through voltage during clamping - critical for protecting 3.3 V or 5 V logic interfaces connected to exposed connectors or cables. |
| MSL Level 1 moisture sensitivity | Enables standard SMT reflow without baking; peak reflow temperature up to 260 °C per J-STD-020. |
Applications
| Automotive Sensor Protection | Industrial CAN Bus Interface |
|---|---|
Use Scenario: Protecting LIN/CAN transceiver inputs and analog sensor outputs (e.g., pressure, temperature) in engine bay or chassis modules exposed to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed across differential bus lines or single-ended sensor outputs to shunt surge energy to ground. Use Value: Limits transient voltage to ≤22.5 V during 1500 W surges, preventing latch-up or gate oxide damage in 5 V tolerant transceivers and ADC front-ends. |
Use Scenario: Guarding RS-485/CAN FD physical layer interfaces in programmable logic controllers (PLCs) and motor drives subjected to field wiring surges and ground potential differences. IC Role / Device Role / Timing Role: Symmetrical TVS across A/B bus lines to suppress common-mode and differential-mode transients without affecting signal integrity. Use Value: Maintains <1.0 μA leakage at 13.6 V VWM, ensuring minimal impact on bus biasing and fail-safe idle-state detection. |
| Consumer USB Port Protection | Telecom Power Input Stage |
Use Scenario: Safeguarding USB 2.0 data lines (D+/D−) and VBUS input in portable medical monitors and smart home hubs connected to unshielded cables. IC Role / Device Role / Timing Role: Bidirectional clamping device placed between connector and PHY IC to absorb ESD (IEC 61000-4-2 ±15 kV contact) and cable discharge events. Use Value: Achieves sub-nanosecond response and clamps ESD pulses to <22.5 V, preserving signal eye diagram and preventing PHY reset or data corruption. |
Use Scenario: Front-end surge suppression on 24 V DC telecom power inputs (e.g., PoE-powered base stations, remote radio units) subject to lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: Primary clamping element in multi-stage protection network, coordinated with GDT and MOV to handle high-energy transients. Use Value: Handles 66.7 A IPPM at 10/1000 μs with low incremental surge resistance, reducing voltage overshoot before secondary protection stages activate. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ16CA | Lower PPPM (600 W), same VWM (13.6 V), larger SMB package (DO-214AA), higher RθJA (90 °C/W). | Less suitable for high-repetition surges or compact layouts where 1500 W headroom and SMC footprint are required. | Select 1.5SMC16CAHM3/I when system-level surge testing exceeds IEC 61000-4-5 Level 3 or board space constraints favor SMC over SMB. |
| 1.5KE16CA | Through-hole TO-218 package, identical electrical specs (VWM, VBR, VC), but incompatible with SMT assembly and lacks AEC-Q101 qualification. | Not viable for automotive or high-volume automated production; limited to prototyping or legacy through-hole designs. | Choose 1.5SMC16CAHM3/I for production-grade automotive or industrial SMT platforms requiring halogen-free, AEC-Q101-compliant TVS devices. |
Compared with SMBJ16CA and 1.5KE16CA, the 1.5SMC16CAHM3/I delivers 2.5× higher peak pulse power in an SMT-compatible package with automotive-grade qualification and halogen-free compliance - making it the preferred choice for space-constrained, high-reliability applications demanding validated surge immunity.
Availability
1.5SMC16CAHM3/I is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O protection, and telecom power input stages requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for 1.5SMC16CAHM3/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 diodes, rectifiers, MOSFETs, and protection devices with emphasis on high-reliability, automotive-qualified, and industry-standard solutions.
The 1.5SMC Series is engineered for high-power transient suppression in harsh environments - targeting automotive, industrial, and telecom systems where robustness against lightning, ESD, and inductive switching is mission-critical.
FAQ
What is the clamping voltage of the 1.5SMC16CAHM3/I at its rated peak pulse current?
The 1.5SMC16CAHM3/I has a maximum clamping voltage (VC) of 22.5 V at 66.7 A peak pulse current (IPPM) under the standard 10/1000 μs waveform. This value is measured per Figure 1 in Vishay Document 88303 and reflects worst-case let-through voltage during surge events - critical for ensuring downstream 3.3 V or 5 V ICs remain within absolute maximum ratings.
Is the 1.5SMC16CAHM3/I qualified for automotive applications?
Yes, the 1.5SMC16CAHM3/I carries the HM3 suffix, indicating halogen-free, RoHS-compliant construction and full AEC-Q101 qualification. It is specifically intended for automotive use cases including engine control units, ADAS sensors, and infotainment interfaces where extended temperature operation (–65 to +150 °C) and reliability under thermal cycling are mandatory.
What does the "CA" suffix mean in 1.5SMC16CAHM3/I?
The "CA" suffix in 1.5SMC16CAHM3/I denotes a bidirectional configuration - meaning the device provides symmetrical transient suppression for both positive and negative voltage excursions. Unlike unidirectional variants (e.g., 1.5SMC16AHM3/I), it has no cathode band marking and functions identically regardless of polarity applied across its terminals.
What is the thermal resistance of the 1.5SMC16CAHM3/I, and how does it affect PCB layout?
The 1.5SMC16CAHM3/I has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal. To maintain safe junction temperatures during repetitive surges, PCB layout must provide adequate copper area and avoid excessive trace impedance - undersized pads will cause derating per Figure 2 in the datasheet.
How does the 1.5SMC16CAHM3/I compare to unidirectional TVS diodes in circuit implementation?
The 1.5SMC16CAHM3/I eliminates polarity concerns in AC-coupled or floating signal paths - unlike unidirectional 1.5SMC16AHM3/I, it requires no orientation check during placement and protects both voltage polarities equally. This simplifies design for differential buses (e.g., CAN, RS-485) and reduces BOM complexity where bidirectional clamping is functionally required.
1.5SMC16CAHM3/I 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):
- 13.6V
- Voltage - Breakdown (Min):
- 15.2V
- Voltage - Clamping (Max) @ Ipp:
- 22.5V
- Current - Peak Pulse (10/1000µs):
- 66.7A
- 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)
1.5SMC16CAHM3/I FAQ
1.How can I place an order for 1.5SMC16CAHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC16CAHM3/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 1.5SMC16CAHM3/I reliable?
The price and inventory of 1.5SMC16CAHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC16CAHM3/I is usually 5 days.
3.What payment methods are accepted for 1.5SMC16CAHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC16CAHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC16CAHM3/I?
1.5SMC16CAHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC16CAHM3/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 1.5SMC16CAHM3/I?
For technical support, including 1.5SMC16CAHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC16CAHM3/I requirements.
6.How does Aetrix verify that 1.5SMC16CAHM3/I is sourced from the original manufacturer or authorized distributors?
All 1.5SMC16CAHM3/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 1.5SMC16CAHM3/I meets industry standards.
7.What is the process for return or replacement of 1.5SMC16CAHM3/I?
All 1.5SMC16CAHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC16CAHM3/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 1.5SMC16CAHM3/I part is unused and in its original packaging.
Return procedure for 1.5SMC16CAHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC16CAHM3/I Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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D5V0P1B2LP-7B
Diodes Incorporated
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Diodes Incorporated
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ESD5Z5.0T1G
onsemi
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DESD5V0U1BB-7
Diodes Incorporated
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D12V0L1B2LP-7B
Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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