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Vishay General Semiconductor - Diodes Division 1.5SMC16AHE3_A/I
- Part No.:
- 1.5SMC16AHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC16AHE3_A/I.pdf
- Description:
- TVS DIODE 13.6VWM 22.5VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:5,925
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Product details
Overview
1.5SMC16AHE3_A/I from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode designed for robust overvoltage protection in power and signal lines. It features a 16 V breakdown voltage (VBR min/max: 15.2–16.8 V), 13.6 V stand-off voltage (VWM), clamps to ≤22.5 V at 66.7 A peak pulse current, and delivers 1500 W peak pulse power with 10/1000 μs waveform - used to safeguard MOSFETs, ICs, and sensor interfaces against lightning-induced surges and inductive switching transients.
For engineers reviewing the 1.5SMC16AHE3_A/I datasheet, 1.5SMC16AHE3_A/I pinout, 1.5SMC16AHE3_A/I application, or 1.5SMC16AHE3_A/I equivalent, key selection criteria include its AEC-Q101 qualification, SMC (DO-214AB) surface-mount package, unidirectional polarity with cathode band marking, low clamping ratio (VC/VBR ≈ 1.41), and compliance with UL 497B for telecom and automotive surge protection systems.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: under normal conditions it presents high impedance (>1000 MΩ at VWM), then rapidly avalanches when reverse voltage exceeds VBR, diverting surge energy to ground while limiting downstream voltage to ≤22.5 V. Its glass-passivated junction ensures stable breakdown and low leakage (<1.0 μA at 13.6 V).
Thermally, it sustains 150 °C maximum junction temperature with RθJA = 75 °C/W (on standard 8 mm × 8 mm copper pads) and handles 200 A non-repetitive forward surge (8.3 ms half-sine). The device is rated for 0.01% duty cycle repetitive operation and meets J-STD-020 MSL Level 1 (260 °C reflow peak).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 15.2 V / 16.8 V - Ensures reliable avalanche initiation above circuit operating voltage while avoiding false triggering. |
| VWM | 13.6 V - Maximum continuous reverse working voltage; must exceed system's highest steady-state rail voltage. |
| VC @ IPPM | ≤22.5 V at 66.7 A - Clamping voltage limits stress on protected ICs; critical for 3.3 V/5 V logic interface survivability. |
| PPPM | 1500 W - Peak pulse power handling with 10/1000 μs waveform; validates protection against IEC 61000-4-5 Level 4 surges. |
| IPPM | 66.7 A - Peak pulse current capacity; determines minimum trace width and grounding path design for effective energy diversion. |
| TJ max | +150 °C - Enables use in under-hood automotive modules and industrial power supplies without thermal derating penalties. |
| AEC-Q101 | Qualified - Confirms reliability for automotive electronics per stress-test requirements (HTOL, TC, UHAST, etc.). |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, molded plastic case with matte tin-plated leads; dimensions 7.75 mm × 6.22 mm × 2.62 mm (L × W × H); UL 94 V-0 rated; polarity indicated by cathode band on unidirectional types.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection point | Connected to ground or return path; completes clamping loop during transient events. |
| Cathode | High-side connection point | Connected to protected line (e.g., 12 V supply or CAN_H); avalanche conduction occurs from cathode to anode. |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power (10/1000 μs) | Validates protection against severe lightning-induced surges per IEC 61000-4-5 Ed. 3. |
| AEC-Q101 qualified (HE3 suffix) | Enables drop-in use in automotive ECUs, ADAS sensors, and body control modules without additional qualification. |
| Clamping ratio VC/VBR ≈ 1.41 | Minimizes overvoltage overshoot during fast transients, preserving margin for 16 V-rated components. |
| MSL Level 1 (260 °C peak) | Supports standard lead-free reflow assembly without pre-baking or special handling. |
| Glass-passivated junction | Ensures long-term parameter stability and low leakage drift across temperature and lifetime. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed microcontrollers and CAN transceivers from load-dump and jump-start transients. IC Role / Device Role / Timing Role: Shunt clamping element placed between power rail and chassis ground; responds within <1 ns to limit voltage excursion. Use Value: Prevents latch-up or gate oxide damage in downstream 3.3 V/5 V logic by clamping to ≤22.5 V during 100 V/100 ms load-dump events. |
Use Scenario: Safeguarding analog outputs of pressure/temperature sensors connected to PLC I/O modules. IC Role / Device Role / Timing Role: Bidirectional-capable unidirectional TVS placed across sensor output and ground to absorb ESD and field-wiring induced spikes. Use Value: Maintains signal integrity below ±25 V common-mode range while surviving 8 kV contact ESD per IEC 61000-4-2. |
| Telecom Line Surge Suppression | Consumer Power Adapter Input Protection |
Use Scenario: Front-end protection for PoE-powered Ethernet switches against induced surges on data pairs. IC Role / Device Role / Timing Role: Unidirectional clamp on DC bias lines (e.g., +48 V PSE output) referenced to local ground plane. Use Value: Limits voltage to safe levels for IEEE 802.3af/at PD controllers during 1 kV/0.5 J longitudinal surges. |
Use Scenario: Secondary-side overvoltage clamp in AC-DC adapters for USB-C PD and smart home hubs. IC Role / Device Role / Timing Role: Fast-response shunt device across 5 V/9 V/15 V output rails to prevent overvoltage damage during regulation failure. Use Value: Complements primary-side OVP by providing sub-100 ns response to secondary-side fault conditions, meeting UL 62368-1 transient immunity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ16A-E3/52 | Lower PPPM (600 W), same VWM/VBR, SMB package (smaller footprint, higher RθJA = 85 °C/W) | Not AEC-Q101 qualified; suitable for cost-sensitive consumer designs where 1500 W rating is not required. | Select when board space is constrained and surge threat level is limited to IEC 61000-4-5 Level 2. |
| 1.5KE16A | Through-hole DO-201 package, identical electrical specs but no AEC-Q101 qualification or MSL Level 1 rating | Requires wave soldering; unsuitable for automated SMT lines or automotive production environments. | Choose only for legacy through-hole designs or prototyping where reflow compatibility is not needed. |
Compared with 1.5SMC16AHE3_A/I, SMBJ16A-E3/52 trades peak power and automotive qualification for smaller size, while 1.5KE16A retains full electrical performance but lacks surface-mount process support and automotive reliability validation - making 1.5SMC16AHE3_A/I the sole option meeting all three criteria: 1500 W rating, AEC-Q101, and SMC reflow compatibility.
Availability
1.5SMC16AHE3_A/I is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor nodes, telecom infrastructure equipment, and consumer power adapters requiring stable component supply with guaranteed AEC-Q101 compliance and long-term lifecycle support.
Supply support for 1.5SMC16AHE3_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 high-reliability, high-power, and automotive-grade solutions.
The 1.5SMC Series was engineered specifically for surface-mount transient suppression in harsh environments - delivering high peak power density, AEC-Q101 qualification, and robust thermal performance in the compact SMC package.
FAQ
What is the clamping voltage of the 1.5SMC16AHE3_A/I under maximum rated surge current?
The 1.5SMC16AHE3_A/I clamps to a maximum of 22.5 V when subjected to its rated peak pulse current of 66.7 A (10/1000 μs waveform). This value is measured per standard test conditions defined in the Vishay datasheet (Document Number: 88303), and reflects worst-case VC across temperature and unit-to-unit variation. Designers must ensure downstream components tolerate this clamped voltage under surge conditions.
Is the 1.5SMC16AHE3_A/I suitable for bidirectional signal line protection?
No - the 1.5SMC16AHE3_A/I is a unidirectional TVS diode, indicated by the "A" suffix and cathode band marking. For bidirectional protection (e.g., RS-485, USB D+/D−), Vishay offers the 1.5SMC16CA variant. Using 1.5SMC16AHE3_A/I on AC-coupled or symmetrical signal lines risks forward conduction during negative excursions, compromising protection integrity.
Does the HE3 suffix on 1.5SMC16AHE3_A/I confirm AEC-Q101 qualification?
Yes - the "HE3" suffix explicitly denotes RoHS-compliant construction and full AEC-Q101 qualification per Vishay's ordering nomenclature (Document Number: 88303, page 3, Note 1). This includes stress testing for high-temperature operating life, temperature cycling, unbiased highly accelerated stress testing, and electrostatic discharge - validating suitability for automotive powertrain and chassis applications.
What is the maximum printed circuit board pad size recommended for optimal thermal performance of the 1.5SMC16AHE3_A/I?
Vishay specifies that the 1.5SMC16AHE3_A/I achieves its rated 1500 W peak pulse power and 75 °C/W thermal resistance when mounted on 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal. Reducing pad area increases thermal impedance and reduces surge current capability; designers should adhere to this layout or apply derating curves from Figure 2 of the datasheet for alternate land patterns.
How does the 1.5SMC16AHE3_A/I compare to older 1.5KE series in terms of mounting and reliability?
The 1.5SMC16AHE3_A/I uses an SMC (DO-214AB) surface-mount package versus the through-hole DO-201 package of the 1.5KE16A. This enables automated placement, eliminates wave soldering, supports higher-density layouts, and provides superior mechanical stability in vibration-prone environments. Additionally, 1.5SMC16AHE3_A/I carries AEC-Q101 qualification and MSL Level 1 rating - features absent in the legacy 1.5KE series.
1.5SMC16AHE3_A/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:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- 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)
1.5SMC16AHE3_A/I FAQ
1.How can I place an order for 1.5SMC16AHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC16AHE3_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 1.5SMC16AHE3_A/I reliable?
The price and inventory of 1.5SMC16AHE3_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 1.5SMC16AHE3_A/I is usually 5 days.
3.What payment methods are accepted for 1.5SMC16AHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC16AHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC16AHE3_A/I?
1.5SMC16AHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC16AHE3_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 1.5SMC16AHE3_A/I?
For technical support, including 1.5SMC16AHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC16AHE3_A/I requirements.
6.How does Aetrix verify that 1.5SMC16AHE3_A/I is sourced from the original manufacturer or authorized distributors?
All 1.5SMC16AHE3_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 1.5SMC16AHE3_A/I meets industry standards.
7.What is the process for return or replacement of 1.5SMC16AHE3_A/I?
All 1.5SMC16AHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC16AHE3_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 1.5SMC16AHE3_A/I part is unused and in its original packaging.
Return procedure for 1.5SMC16AHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC16AHE3_A/I Tags
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