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Vishay General Semiconductor - Diodes Division SMCJ16CAHE3/57T
- Part No.:
- SMCJ16CAHE3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ16CAHE3/57T.pdf
- Description:
- TVS DIODE 16VWM 26VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:6,164
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Product details
Overview
SMCJ16CAHE3/57T from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMC (DO-214AB) package, designed for clamping voltage transients on signal or power lines. It features a 16 V standoff voltage (VWM), 17.8–19.7 V breakdown range (VBR), 26.0 V maximum clamping voltage at 57.7 A peak pulse current (VC), and 1500 W peak pulse power rating with 10/1000 μs waveform.
For engineers reviewing the SMCJ16CAHE3/57T datasheet, SMCJ16CAHE3/57T pinout, SMCJ16CAHE3/57T application, or SMCJ16CAHE3/57T equivalent, this device is selected for robust ESD and surge protection in automotive sensor interfaces, industrial I/O modules, and telecom line drivers where bidirectional clamping, AEC-Q101 qualification, and low incremental surge resistance are critical.
Technical Context
The SMCJ16CAHE3/57T operates as a bidirectional avalanche diode, symmetrically clamping transient overvoltages in both polarities without polarity marking. Its glass-passivated junction ensures stable breakdown behavior and fast response time (<1 ns), while its low RINC enables effective energy diversion during 8.3 ms surges up to 200 A (IFSM, unidirectional reference only).
Thermally, it exhibits RθJA = 75 °C/W and RθJL = 15 °C/W, supporting operation from –55 °C to +150 °C. The device meets MSL Level 1 per J-STD-020 and is qualified to AEC-Q101, confirming suitability for automotive under-hood and infotainment applications requiring high reliability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 16 V - Maximum continuous reverse operating voltage before clamping begins; defines safe working margin for 12 V nominal systems. |
| VBR min/max | 17.8 V / 19.7 V - Breakdown occurs within this range at 1 mA test current; ensures predictable turn-on across temperature and lot variation. |
| VC @ IPPM | 26.0 V at 57.7 A - Clamped voltage during 10/1000 μs surge; limits downstream IC stress to safe levels in protected circuits. |
| PPPM | 1500 W - Peak pulse power handling capability; supports IEC 61000-4-5 Level 4 (4 kV/2 Ω) surge compliance when properly laid out. |
| TJ max | +150 °C - Maximum junction temperature; enables use in high-ambient environments such as automotive engine control units. |
| Package | SMC (DO-214AB) - Standardized 2-pin surface-mount outline with 8.0 mm × 8.0 mm copper pad thermal requirement; compatible with automated reflow assembly. |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing; required for ASIL-B subsystems. |
Pinout & Package
SMCJ16CAHE3/57T uses the SMC (DO-214AB) package: a 2-terminal, non-polarized surface-mount outline with no cathode band marking for bidirectional variants. Thermal performance assumes mounting on 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient return path (bidirectional) | Acts as cathode during positive transients and anode during negative transients; symmetrical conduction enables dual-polarity clamping. |
| Cathode | Transient return path (bidirectional) | Electrically identical to Anode in CA devices; terminals are interchangeable-no polarity dependency in layout. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without external polarity management. |
| 1500 W peak pulse power | Supports high-energy surge events (e.g., ISO 7637-2 Pulse 5a) without degradation when PCB layout meets thermal pad requirements. |
| AEC-Q101 qualification | Confirms long-term reliability in automotive environments including thermal shock, humidity bias, and mechanical vibration stress. |
| MSL Level 1 rating | Allows unlimited floor life and standard reflow profiles up to 260 °C peak, eliminating moisture sensitivity handling overhead. |
| Glass passivated junction | Provides stable leakage current (<1 μA at VWM), low capacitance (~100 pF typical), and repeatable breakdown characteristics over lifetime. |
Applications
| Automotive Sensor Interface | Industrial PLC Analog Input |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor front-ends (e.g., pressure, temperature) from load dump and inductive switching spikes in 12 V vehicle systems. IC Role / Device Role / Timing Role: Bidirectional TVS placed between signal line and ground, clamping transients before they reach precision ADCs or communication ICs. Use Value: Limits voltage excursion to ≤26.0 V during 1500 W surges, preserving signal integrity and preventing latch-up in downstream ASICs. | Use Scenario: Safeguarding 4–20 mA current loop inputs in programmable logic controllers against field wiring faults and electrostatic discharge in factory automation cabinets. IC Role / Device Role / Timing Role: Standoff protector mounted directly at connector entry point, shunting surge energy away from op-amp input stages and isolation barriers. Use Value: Maintains <1 μA leakage at 16 V VWM to avoid current loop error, while clamping 10/1000 μs surges to 26.0 V without degradation. |
| Telecom Line Driver Protection | Consumer USB Port ESD Guard |
Use Scenario: Shielding RS-485/RS-422 differential line drivers in base station backhaul equipment from lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: Common-mode TVS pair (one per line) referenced to chassis ground, suppressing common-mode transients exceeding ±1 kV. Use Value: Delivers symmetrical 26.0 V clamping in both directions, enabling compliance with ITU-T K.21 basic protection level without adding series impedance. | Use Scenario: Adding secondary-level surge immunity to USB 2.0 data lines in smart home hubs exposed to user-handling ESD and nearby AC adapter noise. IC Role / Device Role / Timing Role: Low-capacitance bidirectional clamp placed after primary ESD diode, handling higher-energy events that bypass front-end protection. Use Value: Provides 1500 W surge capacity with <100 pF junction capacitance-preserving signal rise time while meeting IEC 61000-4-2 Level 4 (15 kV air). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ16CA-E3/61T | Lower PPPM (400 W), smaller SMA package (DO-214AC), higher RθJA (110 °C/W) | Suitable for space-constrained consumer electronics but not for automotive or industrial surge standards requiring ≥1 kW. | Select when board area is limited and surge threat level is ≤IEC 61000-4-5 Level 2. |
| SMCJ16CAHM3/57T | Halogen-free variant with identical electrical specs and AEC-Q101 qualification; same SMC package and thermal performance. | No functional difference-used where halogen-free compliance is mandated by OEM or regional environmental regulations. | Choose for automotive Tier 1 supply chains requiring RoHS + halogen-free material declaration. |
Compared with SMCJ16CAHE3/57T, SMAJ16CA-E3/61T trades surge robustness for footprint reduction, while SMCJ16CAHM3/57T offers identical protection with halogen-free construction-making the HE3 version optimal for cost-sensitive AEC-Q101 applications without material restrictions.
Availability
SMCJ16CAHE3/57T is available at Aetrix Electronics and suitable for automotive sensor protection, industrial I/O conditioning, and telecom line driver hardening requiring stable component supply across multi-year production cycles.
Supply support for SMCJ16CAHE3/57T 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, power efficiency, and automotive qualification.
The SMCJ series is engineered for high-energy transient suppression in harsh environments, targeting automotive, industrial, and telecom infrastructure where AEC-Q101 validation and 1500 W surge capability are mandatory design requirements.
FAQ
What does the "CA" suffix indicate in SMCJ16CAHE3/57T?
The "CA" suffix denotes a bidirectional configuration: SMCJ16CAHE3/57T clamps voltage transients equally in both polarities, making it ideal for AC-coupled or floating signal lines where polarity cannot be assumed. Unlike unidirectional "A" variants, it has no cathode marking and functions identically regardless of terminal orientation-confirmed in Vishay's datasheet section "DEVICES FOR BIDIRECTION APPLICATIONS".
Is SMCJ16CAHE3/57T qualified for automotive use?
Yes, SMCJ16CAHE3/57T carries the "HE3" suffix, indicating RoHS-compliant construction and full AEC-Q101 qualification per Vishay's ordering information table and mechanical data section. This certification covers stress tests including temperature cycling, high-temperature reverse bias, and ESD-validating its use in engine control, ADAS sensors, and infotainment systems per automotive OEM requirements.
What is the maximum clamping voltage of SMCJ16CAHE3/57T and under what test condition?
The maximum clamping voltage of SMCJ16CAHE3/57T is 26.0 V, measured at 57.7 A peak pulse current (IPPM) using the standardized 10/1000 μs double-exponential surge waveform. This value is specified in the "ELECTRICAL CHARACTERISTICS" table on page 2 of Vishay document 88394 and defines the upper voltage limit imposed on protected circuitry during worst-case transient events.
How does the SMC (DO-214AB) package of SMCJ16CAHE3/57T affect thermal performance?
The SMC (DO-214AB) package of SMCJ16CAHE3/57T delivers RθJA = 75 °C/W and RθJL = 15 °C/W when mounted on 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal. This thermal design enables reliable 1500 W surge dissipation without exceeding +150 °C junction temperature-critical for sustained operation in under-hood automotive or enclosed industrial enclosures.
Can SMCJ16CAHE3/57T replace unidirectional SMCJ16AHE3/57T in existing designs?
No-SMCJ16CAHE3/57T is bidirectional and lacks polarity marking, while SMCJ16AHE3/57T is unidirectional with a cathode band. Substituting them requires verifying circuit topology: bidirectional use is valid only where the protected node is floating or AC-coupled; unidirectional placement is mandatory for DC-biased rails like 12 V power lines. Layout changes may be needed to ensure proper grounding and avoid unintended conduction paths.
SMCJ16CAHE3/57T 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)
SMCJ16CAHE3/57T FAQ
1.How can I place an order for SMCJ16CAHE3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ16CAHE3/57T 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 SMCJ16CAHE3/57T reliable?
The price and inventory of SMCJ16CAHE3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ16CAHE3/57T is usually 5 days.
3.What payment methods are accepted for SMCJ16CAHE3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ16CAHE3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ16CAHE3/57T?
SMCJ16CAHE3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ16CAHE3/57T 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 SMCJ16CAHE3/57T?
For technical support, including SMCJ16CAHE3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ16CAHE3/57T requirements.
6.How does Aetrix verify that SMCJ16CAHE3/57T is sourced from the original manufacturer or authorized distributors?
All SMCJ16CAHE3/57T 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 SMCJ16CAHE3/57T meets industry standards.
7.What is the process for return or replacement of SMCJ16CAHE3/57T?
All SMCJ16CAHE3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ16CAHE3/57T, 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 SMCJ16CAHE3/57T part is unused and in its original packaging.
Return procedure for SMCJ16CAHE3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ16CAHE3/57T Tags
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