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Vishay General Semiconductor - Diodes Division SMCJ16CAHE3_A/I
- Part No.:
- SMCJ16CAHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ16CAHE3_A/I.pdf
- Description:
- TVS DIODE 16VWM 26VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,711
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Product details
Overview
SMCJ16CAHE3_A/I from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for high-energy surge protection on power and signal lines. It features a 16 V standoff voltage (VWM), 26.0 V clamping voltage (VC) at 57.7 A peak pulse current (IPPM), and 1500 W peak pulse power (PPPM) with 10/1000 µs waveform - used to safeguard automotive ECUs, industrial I/O modules, and sensor interfaces against lightning-induced transients and inductive switching spikes.
For engineers reviewing the SMCJ16CAHE3_A/I datasheet, SMCJ16CAHE3_A/I pinout, SMCJ16CAHE3_A/I application, or SMCJ16CAHE3_A/I equivalent, key selection criteria include bidirectional clamping symmetry, AEC-Q101 qualification status, thermal resistance (RθJA = 75 °C/W), junction temperature range (–55 to +150 °C), and compatibility with automated SMT placement on 8.0 mm × 8.0 mm copper pads.
Technical Context
This device operates as a voltage-clamped crowbar during overvoltage events, leveraging an avalanche breakdown mechanism with glass-passivated junction. Its bidirectional structure ensures symmetrical clamping in both polarities, eliminating need for polarity-aware layout - critical for AC-coupled or floating signal lines.
Designed for transient suppression per IEC 61000-4-2 (ESD), IEC 61000-4-4 (EFT), and ISO 7637-2 (automotive load dump), it delivers sub-nanosecond response time and low incremental surge resistance (< 0.45 Ω derived from VC/IPPM), enabling effective protection of downstream MOSFETs, CAN transceivers, and microcontroller I/O pins without signal distortion.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 16 V - maximum continuous reverse operating voltage before clamping initiates; defines safe operating margin below system rail |
| VBR min/max | 17.8 V / 19.7 V - breakdown voltage range at 1 mA test current; ensures consistent turn-on across production lots |
| VC @ IPPM | 26.0 V - clamped voltage at 57.7 A peak pulse current; determines maximum stress imposed on protected circuitry |
| PPPM | 1500 W - peak pulse power handling with 10/1000 µs waveform; supports high-energy surges common in 12 V automotive systems |
| TJ max | +150 °C - maximum junction temperature; enables operation in under-hood environments and industrial enclosures |
| RθJA | 75 °C/W - thermal resistance junction-to-ambient on standard PCB pad; informs heatsinking requirements for sustained surge duty |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, bidirectional configuration with no polarity marking - terminals are symmetrical anode/cathode pair.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (negative polarity event) | Accepts reverse surge current during negative transients; forms one side of symmetrical clamping path |
| Cathode | Transient current entry (positive polarity event) | Accepts forward surge current during positive transients; completes bidirectional clamping loop |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD robustness - required for engine control, ADAS, and body electronics |
| Glass-passivated junction | Enhances long-term stability and moisture resistance versus epoxy-passivated alternatives; critical for high-humidity industrial deployments |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without preconditioning - eliminates assembly yield risk in high-volume SMT lines |
| Low incremental surge resistance | ~0.45 Ω (calculated from VC/IPPM) - minimizes voltage overshoot during fast-rising transients, improving protection margin for 3.3 V/5 V logic |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V supply rails in engine control units (ECUs) and infotainment head units from load dump and jump-start surges. IC Role / Device Role / Timing Role: Bidirectional TVS clamp placed upstream of DC/DC converters and LDOs to limit input voltage excursion during ISO 7637-2 Pulse 5a events. Use Value: Clamps to 26.0 V at 57.7 A, preventing damage to 36 V-rated input stages while maintaining AEC-Q101 compliance for automotive qualification. | Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) in factory automation PLC modules from EFT and ESD coupling on 24 V field wiring. IC Role / Device Role / Timing Role: Low-capacitance (typ. < 100 pF) bidirectional shunt element across differential signal pairs to divert transients before reaching precision ADC front-ends. Use Value: Symmetrical clamping preserves signal integrity on AC-coupled lines; 1500 W rating handles repetitive 4 kV EFT bursts per IEC 61000-4-4. |
| Telecom Data Line Surge Suppression | Consumer Appliance Motor Drive Protection |
Use Scenario: Safeguarding RS-485 transceivers in base station backhaul equipment exposed to lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: Primary-level TVS on bus lines, coordinated with secondary GDT or polymer PTC for staged protection architecture. Use Value: Fast response (< 1 ns) and 26.0 V clamping prevent latch-up in ±5 V transceiver ICs; DO-214AB footprint allows compact board layout near connectors. | Use Scenario: Suppressing commutation spikes from brushed DC motors in smart home appliances (e.g., vacuum cleaners, washing machines). IC Role / Device Role / Timing Role: Across-motor terminals to clamp inductive kickback during PWM switching, reducing EMI and protecting MCU GPIOs driving H-bridge drivers. Use Value: 1500 W PPPM withstands repeated 100 A motor stall surges; RoHS-compliant matte tin plating ensures solderability after storage and reflow. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SAC16CA | Lower PPPM (600 W), same VWM (16 V), smaller SMA package (DO-214AC) | Limited to lower-energy transients; unsuitable for automotive load dump or industrial 4 kV EFT | Select when space-constrained and surge energy ≤ 600 W; verify thermal derating on small pads |
| 1.5KE16CA | Higher PPPM (1500 W), same VWM (16 V), axial-leaded DO-15 package | Not SMT-compatible; requires through-hole assembly and larger board area; higher inductance limits high-speed transient response | Choose only for legacy through-hole designs or prototyping where reflow compatibility is not required |
Compared with SAC16CA and 1.5KE16CA, SMCJ16CAHE3_A/I uniquely combines AEC-Q101 qualification, SMC package manufacturability, and full 1500 W surge capability - making it the preferred choice for new automotive and industrial SMT designs requiring production-ready reliability and performance.
Availability
SMCJ16CAHE3_A/I is available at Aetrix Electronics and suitable for automotive electronic control units, industrial programmable logic controllers, and telecom infrastructure equipment requiring stable component supply and long-term lifecycle support.
Supply support for SMCJ16CAHE3_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 diodes, rectifiers, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The SMCJ series targets high-energy transient suppression in harsh environments - engineered for automotive, industrial, and telecom applications where failure tolerance, thermal robustness, and standardized qualification (AEC-Q101, UL 497B) are mandatory.
FAQ
What is the clamping voltage of SMCJ16CAHE3_A/I at its rated peak pulse current?
The SMCJ16CAHE3_A/I has a maximum clamping voltage (VC) of 26.0 V when subjected to its rated peak pulse current (IPPM) of 57.7 A using a 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 standards and defines the upper voltage limit imposed on protected circuitry during surge events - critical for ensuring downstream components like 3.3 V or 5 V microcontrollers remain within absolute maximum ratings.
Is SMCJ16CAHE3_A/I suitable for automotive applications?
Yes, SMCJ16CAHE3_A/I is AEC-Q101 qualified and explicitly designated for automotive use via its "HE3" suffix. It meets requirements for temperature cycling, high-temperature reverse bias, and mechanical shock testing per the AEC-Q101 standard. The device is deployed in engine control modules, body electronics, and ADAS sensors where protection against ISO 7637-2 load dump and ESD events is mandatory - confirmed by Vishay's automotive ordering code documentation.
How does the bidirectional configuration of SMCJ16CAHE3_A/I affect circuit design?
The bidirectional configuration of SMCJ16CAHE3_A/I eliminates polarity sensitivity, allowing placement across AC-coupled lines, differential buses (e.g., RS-485), or floating power domains without orientation constraints. Unlike unidirectional TVS diodes, it provides symmetrical clamping in both directions - meaning the same 26.0 V VC applies to positive and negative transients. This simplifies layout, reduces BOM count, and avoids misorientation risks during automated assembly.
What is the thermal resistance of SMCJ16CAHE3_A/I, and how does it impact PCB layout?
SMCJ16CAHE3_A/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. This value assumes minimum recommended pad layout per Vishay's datasheet Figure 6. To maintain safe junction temperatures under repeated surge conditions, designers must allocate adequate copper area and avoid excessive trace length - undersized pads will increase RθJA and risk thermal runaway during high-duty-cycle transients.
Does SMCJ16CAHE3_A/I meet RoHS and halogen-free requirements?
Yes, SMCJ16CAHE3_A/I carries the "HE3" suffix, indicating it is RoHS-compliant and AEC-Q101 qualified. Per Vishay's ordering information and material categorization documentation (www.vishay.com/doc?99912), HE3 parts use lead-free matte tin plating and comply with EU RoHS Directive 2011/65/EU. They are not halogen-free - for halogen-free compliance, the HM3 variant (e.g., SMCJ16CAHM3_A/I) must be selected instead.
SMCJ16CAHE3_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):
- 16V
- Voltage - Breakdown (Min):
- 17.8V
- Voltage - Clamping (Max) @ Ipp:
- 26V
- Current - Peak Pulse (10/1000µs):
- 57.7A
- Power - Peak Pulse:
- 1500W (1.5kW)
- 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)
SMCJ16CAHE3_A/I FAQ
1.How can I place an order for SMCJ16CAHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ16CAHE3_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 SMCJ16CAHE3_A/I reliable?
The price and inventory of SMCJ16CAHE3_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 SMCJ16CAHE3_A/I is usually 5 days.
3.What payment methods are accepted for SMCJ16CAHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ16CAHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ16CAHE3_A/I?
SMCJ16CAHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ16CAHE3_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 SMCJ16CAHE3_A/I?
For technical support, including SMCJ16CAHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ16CAHE3_A/I requirements.
6.How does Aetrix verify that SMCJ16CAHE3_A/I is sourced from the original manufacturer or authorized distributors?
All SMCJ16CAHE3_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 SMCJ16CAHE3_A/I meets industry standards.
7.What is the process for return or replacement of SMCJ16CAHE3_A/I?
All SMCJ16CAHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ16CAHE3_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 SMCJ16CAHE3_A/I part is unused and in its original packaging.
Return procedure for SMCJ16CAHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ16CAHE3_A/I Tags
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