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Vishay General Semiconductor - Diodes Division 1.5SMC16CAHE3/9AT
- Part No.:
- 1.5SMC16CAHE3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC16CAHE3/9AT.pdf
- Description:
- TVS DIODE 13.6VWM 22.5VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:2,182
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Product details
Overview
1.5SMC16CAHE3/9AT from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMC (DO-214AB) package, rated for 1500 W peak pulse power (10/1000 µs), 16 V standoff voltage (VWM), and clamping voltage of 22.5 V at 66.7 A peak pulse current - deployed for ESD and lightning surge protection on automotive sensor signal lines and industrial I/O interfaces.
For engineers reviewing the 1.5SMC16CAHE3/9AT datasheet, 1.5SMC16CAHE3/9AT pinout, 1.5SMC16CAHE3/9AT application, or 1.5SMC16CAHE3/9AT equivalent, this AEC-Q101 qualified TVS offers verified bidirectional clamping, low incremental surge resistance, and MSL Level 1 moisture sensitivity - critical for high-reliability automotive electronics and industrial control systems requiring robust transient immunity without polarity constraints.
Technical Context
This device operates as a voltage-clamped shunt protector: when reverse (or forward, in bidirectional mode) transient voltage exceeds its breakdown threshold (~17.1–18.9 V), it avalanches to divert surge current away from downstream circuitry while maintaining clamping voltage ≤22.5 V. Its glass-passivated junction ensures stable avalanche characteristics and fast response time (<1 ns).
Designed for unclamped inductive switching transients and lightning-induced surges, the 1.5SMC16CAHE3/9AT sustains repetitive 10/1000 µs pulses at 0.01% duty cycle, with thermal resistance RθJA = 75 °C/W and maximum junction temperature of +150 °C - enabling reliable operation on standard 8.0 mm × 8.0 mm copper pads without active cooling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 13.6 V - Maximum continuous reverse operating voltage before significant leakage; defines safe working margin below clamping onset. |
| VBR (Breakdown) | 15.2–16.8 V at 1.0 mA - Verified avalanche initiation range; ensures predictable turn-on during transients. |
| VC (Clamping) | 22.5 V at 66.7 A - Peak voltage seen by protected circuit during full-rated 1500 W surge; limits stress on downstream ICs. |
| PPPM | 1500 W - Peak pulse power handling per 10/1000 µs waveform; supports high-energy lightning and inductive kick events. |
| IPPM | 66.7 A - Maximum non-repetitive surge current it can safely clamp; determines minimum series impedance required. |
| TJ max. | +150 °C - Maximum junction temperature rating; enables use in under-hood automotive and high-ambient industrial environments. |
| Package | SMC (DO-214AB) - Standardized surface-mount outline with 7.75 mm × 6.22 mm footprint and 2.62 mm height; compatible with automated placement and reflow. |
Pinout & Package
SMC (DO-214AB) package: molded plastic body with two coplanar matte tin-plated leads; no polarity marking for bidirectional configuration - terminals are symmetrical and interchangeable.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional terminal pair | Either lead serves as anode or cathode depending on transient polarity; no DC bias dependency - ideal for AC-coupled or floating signal lines. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing - suitable for engine control, ADAS sensors, and infotainment interfaces. |
| 1500 W peak pulse power | Handles high-energy transients from load dump or ISO 7637-2 Pulse 5a without degradation - eliminates need for cascaded protection stages. |
| Low clamping ratio (VC/VBR ≈ 1.33) | Minimizes overvoltage stress on protected ICs; improves margin versus 3.3 V/5 V logic rails and automotive CAN/LIN transceivers. |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without baking - reduces manufacturing complexity and cost. |
| Glass-passivated junction | Ensures stable leakage (<1.0 µA at VWM) and repeatable breakdown over lifetime - critical for long-term field reliability. |
Applications
| Automotive Sensor Interface Protection | Industrial PLC Analog Input Protection |
|---|---|
Use Scenario: Protecting LIN bus or analog sensor outputs (e.g., pressure, temperature) in engine bay modules exposed to load dump and alternator ripple. IC Role / Device Role / Timing Role: Bidirectional shunt clamping element placed directly at connector entry point to suppress ±200 V transients before reaching MCU ADC or LIN transceiver. Use Value: Maintains signal integrity under ISO 16750-2 test conditions while avoiding polarity-sensitive layout - reduces BOM count vs. dual unidirectional TVS. |
Use Scenario: Safeguarding 4–20 mA current loop inputs on programmable logic controllers against induced surges from nearby motor drives or relay switching. IC Role / Device Role / Timing Role: Fast-acting voltage clamp across input terminals, limiting transient voltage to <23 V to prevent op-amp saturation or protection diode failure. Use Value: Enables direct interface with industrial-grade 24 V supply rails without external series impedance - preserves loop accuracy and response time. |
| Telecom Line Card Surge Protection | Consumer Appliance Motor Control Board |
Use Scenario: Shielding Ethernet PHY or RS-485 transceivers on base station line cards from lightning-induced common-mode surges on outdoor cabling. IC Role / Device Role / Timing Role: Primary differential-mode clamp on data pair, coordinated with common-mode chokes to meet ITU-T K.21 basic protection level. Use Value: Achieves >15 kV contact ESD (IEC 61000-4-2) and 1 kV lightning surge (IEC 61000-4-5) immunity without derating - extends field service life. |
Use Scenario: Suppressing commutation spikes from universal motor brushes in washing machine or HVAC blower control boards. IC Role / Device Role / Timing Role: Parallel-connected TVS across motor terminals to clamp inductive kickup to <23 V, preventing MOSFET avalanche failure. Use Value: Eliminates need for snubber RC networks - reduces PCB area and component count while improving thermal stability during repeated start-stop cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ16CA | Same VWM (13.6 V) and VC (22.5 V), but lower PPPM = 600 W in smaller SMB (DO-214AA) package. | Limited to lower-energy transients; unsuitable for ISO 7637-2 Pulse 5a or lightning-level surges. | Select when space-constrained layouts prioritize footprint over surge rating - verify IPPM derating for target threat level. |
| 1.5KE16CA | Same electrical specs but axial-leaded DO-15 package; not surface-mountable and lacks AEC-Q101 qualification. | Restricted to prototyping or through-hole production; incompatible with automated SMT assembly and automotive qualification requirements. | Choose only for legacy repair or non-automotive applications where reflow compatibility and automotive compliance are not required. |
Compared with SMBJ16CA and 1.5KE16CA, the 1.5SMC16CAHE3/9AT uniquely delivers AEC-Q101 qualification, 1500 W surge capability, and SMC package compatibility - making it the only option among the three validated for high-volume automotive electronics with stringent reliability and manufacturability demands.
Availability
1.5SMC16CAHE3/9AT is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC analog inputs, telecom line cards, and consumer appliance motor control boards requiring stable component supply with guaranteed AEC-Q101 compliance and 13" tape-and-reel delivery.
Supply support for 1.5SMC16CAHE3/9AT 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 high-reliability diodes, MOSFETs, and optoelectronics with emphasis on automotive, industrial, and computing applications.
The 1.5SMC Series was engineered specifically for high-power transient suppression in harsh environments - targeting automotive electronics, industrial controls, and telecom infrastructure where robustness, consistency, and qualification compliance are mandatory.
FAQ
What is the clamping voltage of the 1.5SMC16CAHE3/9AT at its rated peak pulse current?
The 1.5SMC16CAHE3/9AT clamps to a maximum of 22.5 V at its rated peak pulse current of 66.7 A (10/1000 µs waveform). This value is measured under standardized test conditions with 8.0 mm × 8.0 mm copper pads per terminal and represents the upper limit of voltage imposed on protected circuitry during full-rated surge events - critical for ensuring compatibility with 3.3 V, 5 V, and 24 V system rails.
Is the 1.5SMC16CAHE3/9AT suitable for automotive applications?
Yes, the 1.5SMC16CAHE3/9AT is AEC-Q101 qualified and explicitly designated for automotive use via the "HE3" suffix. It meets rigorous stress tests including temperature cycling, high-temperature reverse bias (HTRB), and ESD - making it appropriate for engine control units, ADAS camera modules, and body electronics where transient immunity and long-term reliability are essential.
Does the 1.5SMC16CAHE3/9AT have polarity markings on the package?
No, the 1.5SMC16CAHE3/9AT is a bidirectional TVS diode and carries no polarity marking on its SMC (DO-214AB) package. Its symmetrical construction allows either terminal to serve as anode or cathode depending on transient polarity - simplifying PCB layout and eliminating orientation errors during automated placement.
What is the maximum junction temperature rating for the 1.5SMC16CAHE3/9AT?
The 1.5SMC16CAHE3/9AT has a maximum junction temperature (TJ) rating of +150 °C. This enables operation in high-ambient environments such as under-hood automotive locations or enclosed industrial enclosures, provided thermal design adheres to the specified pad layout (0.31" × 0.31" copper per terminal) and accounts for RθJA = 75 °C/W.
How does the 1.5SMC16CAHE3/9AT differ from unidirectional variants like 1.5SMC16AHE3/9AT?
The 1.5SMC16CAHE3/9AT is bidirectional (denoted by "CA"), providing symmetrical clamping for both positive and negative transients, whereas 1.5SMC16AHE3/9AT is unidirectional ("A") and requires correct cathode orientation. The "CA" version eliminates polarity concerns in AC-coupled or floating circuits - such as RS-485 buses or transformer-isolated interfaces - where voltage reversals occur naturally.
1.5SMC16CAHE3/9AT 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCJ)
1.5SMC16CAHE3/9AT FAQ
1.How can I place an order for 1.5SMC16CAHE3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC16CAHE3/9AT 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 1.5SMC16CAHE3/9AT reliable?
The price and inventory of 1.5SMC16CAHE3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC16CAHE3/9AT is usually 5 days.
3.What payment methods are accepted for 1.5SMC16CAHE3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC16CAHE3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC16CAHE3/9AT?
1.5SMC16CAHE3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC16CAHE3/9AT 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 1.5SMC16CAHE3/9AT?
For technical support, including 1.5SMC16CAHE3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC16CAHE3/9AT requirements.
6.How does Aetrix verify that 1.5SMC16CAHE3/9AT is sourced from the original manufacturer or authorized distributors?
All 1.5SMC16CAHE3/9AT 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 1.5SMC16CAHE3/9AT meets industry standards.
7.What is the process for return or replacement of 1.5SMC16CAHE3/9AT?
All 1.5SMC16CAHE3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC16CAHE3/9AT, 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 1.5SMC16CAHE3/9AT part is unused and in its original packaging.
Return procedure for 1.5SMC16CAHE3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC16CAHE3/9AT Tags
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