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Vishay General Semiconductor - Diodes Division SMCJ16CAHE3/9AT
- Part No.:
- SMCJ16CAHE3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ16CAHE3/9AT.pdf
- Description:
- TVS DIODE 16VWM 26VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,546
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Product details
Overview
SMCJ16CAHE3/9AT from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for robust overvoltage protection of DC power rails and signal lines. It features a 16 V standoff voltage (VWM), 26.0 V maximum clamping voltage (VC) at 57.7 A peak pulse current (IPPM), and 1500 W peak pulse power (PPPM) with 10/1000 µs waveform - deployed in automotive sensor interfaces and industrial I/O modules.
For engineers reviewing the SMCJ16CAHE3/9AT datasheet, SMCJ16CAHE3/9AT pinout, SMCJ16CAHE3/9AT application, or SMCJ16CAHE3/9AT equivalent, this device delivers AEC-Q101 qualified surge immunity for bidirectional signal paths, low incremental surge resistance, and MSL Level 1 moisture sensitivity - critical for high-reliability automotive ECUs and industrial PLC analog front-ends.
Technical Context
The SMCJ16CAHE3/9AT operates as a bidirectional avalanche diode, symmetrically clamping voltage transients above ±26.0 V while maintaining ≤1.0 µA reverse leakage at 16 V. Its glass-passivated junction ensures stable breakdown behavior across -55 °C to +150 °C operating temperature range and supports fast response time (<1 ns) to ESD and lightning-induced surges.
Designed for surface-mount placement on 8.0 mm × 8.0 mm copper pads per terminal, it achieves thermal resistance of 75 °C/W (junction-to-ambient) and 15 °C/W (junction-to-lead), enabling sustained 6.5 W power dissipation at TA = 50 °C without forced cooling - suitable for compact, thermally constrained PCB layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 16 V - Maximum continuous reverse working voltage before clamping begins; defines safe operating margin for 12 V nominal systems. |
| VBR min/max | 17.8 V / 19.7 V at IT = 1.0 mA - Confirmed breakdown threshold ensures predictable turn-on during transients. |
| VC @ IPPM | 26.0 V at 57.7 A (10/1000 µs) - Clamping voltage limits downstream IC stress during 1500 W surge events. |
| PPPM | 1500 W - Peak pulse power rating enables protection against IEC 61000-4-5 Level 4 (4 kV) surges. |
| TJ max | +150 °C - Junction temperature limit supports operation in under-hood automotive environments. |
| Package | SMC (DO-214AB) - Standardized 2-pin surface-mount outline with 7.75 mm × 6.22 mm footprint and matte tin-plated leads. |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC standard. |
Pinout & Package
SMCJ16CAHE3/9AT uses the SMC (DO-214AB) package: a 2-terminal, non-polarized surface-mount case with cathode/anode symmetry for bidirectional operation. No polarity marking is present on the body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode / Cathode (bidirectional) | Either terminal serves as anode or cathode depending on transient polarity; symmetrical conduction enables AC/signal line protection. |
| Terminal 2 | Anode / Cathode (bidirectional) | Electrically identical to Terminal 1; no functional distinction - mounting orientation does not affect performance. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or differential signal lines (e.g., CAN, RS-485) without polarity concerns. |
| AEC-Q101 qualification | Validates reliability for automotive applications including engine control, ADAS sensors, and infotainment power supplies. |
| 1500 W peak pulse power | Withstands IEC 61000-4-5 surge test waveforms up to 4 kV open-circuit voltage in industrial and telecom equipment. |
| MSL Level 1 (260 °C) | Allows lead-free reflow soldering without pre-baking, simplifying manufacturing for high-volume automotive PCB assembly. |
| Glass-passivated junction | Ensures stable VBR over lifetime and improved resistance to humidity-induced parameter drift in harsh environments. |
Applications
| Automotive Sensor Interface | Industrial PLC Analog Input |
|---|---|
|
Use Scenario: Protecting 12 V supply and signal lines of wheel speed sensors exposed to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional TVS clamping transient energy before it reaches the sensor ASIC or microcontroller ADC input. Use Value: Limits voltage excursion to ≤26.0 V during 100 V/50 ms load dump events, preventing latch-up or gate oxide damage in downstream ICs. |
Use Scenario: Shielding 4–20 mA current loop inputs in programmable logic controllers from field wiring surges and ESD. IC Role / Device Role / Timing Role: Fast-acting shunt device that diverts >1 kA surge current away from precision op-amps and isolation amplifiers. Use Value: Maintains signal integrity by clamping transients within 1 ns, preserving <1 LSB error in 16-bit analog acquisition channels. |
| Telecom Power Rail Protection | Consumer USB Port ESD Suppression |
|
Use Scenario: Safeguarding 48 V DC power distribution in PoE-powered network switches against induced lightning surges. IC Role / Device Role / Timing Role: Primary overvoltage clamp on secondary-side DC bus, coordinated with upstream MOVs and fuses. Use Value: Absorbs 1500 W surge energy without degradation, ensuring uninterrupted operation during Category A/B lightning tests per IEC 61000-4-5. |
Use Scenario: Secondary-level ESD protection on USB 2.0 D+/D− lines in smart home hubs subjected to ±8 kV contact discharge. IC Role / Device Role / Timing Role: Low-capacitance (typ. 150 pF) bidirectional clamp placed after series impedance to limit I/O pin voltage swing. Use Value: Prevents data corruption by clamping ESD transients to <26 V while adding <0.5 pF parasitic capacitance per line - compliant with USB 2.0 eye diagram requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ16CAHE3/A | Lower PPPM (400 W), smaller SMA package (DO-214AC), same VWM/VC specs. | Limited to lower-energy transients (IEC 61000-4-2 only); unsuitable for IEC 61000-4-5 Level 3+ or load dump. | Select when board space is constrained and surge threat level is limited to ESD and capacitive coupling. |
| SMCJ16CAHM3/9AT | Identical electrical specs and AEC-Q101 qualification; halogen-free molding compound (per JEDEC J-STD-201 Class 2). | No functional difference; used where RoHS-compliant halogen-free materials are mandated by OEM procurement policy. | Choose for automotive Tier 1 programs requiring full material compliance documentation and whisker resistance validation. |
Compared with SMAJ16CAHE3/A and SMCJ16CAHM3/9AT, the SMCJ16CAHE3/9AT uniquely balances 1500 W surge capability, AEC-Q101 qualification, and commercial-grade RoHS compliance in the industry-standard SMC footprint - making it optimal for cost-sensitive yet reliability-critical automotive and industrial designs.
Availability
SMCJ16CAHE3/9AT is available at Aetrix Electronics and suitable for automotive ECUs, industrial PLCs, and telecom power systems requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SMCJ16CAHE3/9AT 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and application-specific performance.
The SMCJ series targets high-energy transient suppression in automotive, industrial, and telecom infrastructure - engineered for ruggedness, consistency, and compliance with AEC-Q101 and IEC surge standards.
FAQ
What is the clamping voltage of SMCJ16CAHE3/9AT at its rated peak pulse current?
The SMCJ16CAHE3/9AT has a maximum clamping voltage (VC) of 26.0 V when subjected to its rated peak pulse current of 57.7 A using the 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and guarantees that downstream circuitry remains below destructive voltage thresholds during standardized surge events. The SMCJ16CAHE3/9AT maintains this clamping performance across its full operating temperature range of -55 °C to +150 °C.
Is SMCJ16CAHE3/9AT suitable for automotive applications?
Yes, the SMCJ16CAHE3/9AT is AEC-Q101 qualified and specifically designed for automotive use, including engine control units, body electronics, and ADAS sensor modules. Its construction includes glass-passivated junctions, MSL Level 1 reflow compatibility, and validated performance under temperature cycling, high-temperature reverse bias, and ESD stress. The SMCJ16CAHE3/9AT meets automotive-grade reliability requirements without derating for ambient temperatures up to +125 °C.
How does the bidirectional configuration of SMCJ16CAHE3/9AT differ from unidirectional variants like SMCJ16AHE3/9AT?
The SMCJ16CAHE3/9AT provides symmetrical clamping for both positive and negative transients due to its bidirectional structure, making it ideal for AC-coupled lines, differential buses (e.g., CAN, RS-485), or floating power rails. In contrast, the unidirectional SMCJ16AHE3/9AT conducts only in reverse bias and requires correct polarity orientation. The SMCJ16CAHE3/9AT eliminates polarity concerns during placement and supports dual-polarity surge events without external circuit modifications.
What is the thermal resistance of SMCJ16CAHE3/9AT, and how does it impact PCB layout?
The SMCJ16CAHE3/9AT has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on minimum recommended 8.0 mm × 8.0 mm copper pads per terminal. This value directly informs PCB copper area requirements: reducing pad size increases thermal resistance and risks exceeding the +150 °C maximum junction temperature during repeated surges. The SMCJ16CAHE3/9AT datasheet specifies exact pad dimensions to ensure reliable 6.5 W steady-state dissipation at 50 °C ambient.
Does SMCJ16CAHE3/9AT have any special handling or packaging requirements?
The SMCJ16CAHE3/9AT is supplied in 13-inch plastic tape and reel (9AT packaging code), with 3500 units per reel, and meets J-STD-020 MSL Level 1 - meaning it can be exposed to ambient conditions indefinitely and withstand peak reflow temperatures up to 260 °C without baking. Its matte tin-plated leads comply with JESD 22-B102 solderability standards and JESD 201 Class 2 whisker resistance testing. No special storage or handling beyond standard ESD-safe practices is required for the SMCJ16CAHE3/9AT.
SMCJ16CAHE3/9AT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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)
SMCJ16CAHE3/9AT FAQ
1.How can I place an order for SMCJ16CAHE3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ16CAHE3/9AT 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 SMCJ16CAHE3/9AT reliable?
The price and inventory of SMCJ16CAHE3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ16CAHE3/9AT is usually 5 days.
3.What payment methods are accepted for SMCJ16CAHE3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ16CAHE3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ16CAHE3/9AT?
SMCJ16CAHE3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ16CAHE3/9AT 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 SMCJ16CAHE3/9AT?
For technical support, including SMCJ16CAHE3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ16CAHE3/9AT requirements.
6.How does Aetrix verify that SMCJ16CAHE3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCJ16CAHE3/9AT 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 SMCJ16CAHE3/9AT meets industry standards.
7.What is the process for return or replacement of SMCJ16CAHE3/9AT?
All SMCJ16CAHE3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ16CAHE3/9AT, 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 SMCJ16CAHE3/9AT part is unused and in its original packaging.
Return procedure for SMCJ16CAHE3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ16CAHE3/9AT Tags
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