My Inquiry
My Account
Vishay General Semiconductor - Diodes Division 1.5SMC16AHE3_A/H
- Part No.:
- 1.5SMC16AHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC16AHE3_A/H.pdf
- Description:
- TVS DIODE 13.6VWM 22.5VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:5,560
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
1.5SMC16AHE3_A/H from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the SMC (DO-214AB) package, designed for robust overvoltage protection of power rails and signal lines. It features a 13.6 V stand-off voltage (VWM), 15.2–16.8 V breakdown voltage (VBR) at 1 mA, 22.5 V maximum clamping voltage (VC) at 66.7 A peak pulse current, and 1500 W peak pulse power capability with a 10/1000 µs waveform - ideal for automotive power supply rail protection against load dump and ESD.
For engineers reviewing the 1.5SMC16AHE3_A/H datasheet, 1.5SMC16AHE3_A/H pinout, 1.5SMC16AHE3_A/H application, or 1.5SMC16AHE3_A/H equivalent, this AEC-Q101 qualified TVS offers verified clamping performance, low incremental surge resistance, and RoHS-compliant matte tin-plated leads suitable for automated SMT assembly in high-reliability automotive and industrial systems.
Technical Context
The 1.5SMC16AHE3_A/H operates as a unidirectional avalanche diode, conducting only when reverse voltage exceeds its specified breakdown range (15.2–16.8 V). Its glass-passivated junction ensures stable VBR tolerance and fast response time (<1 ns), enabling effective suppression of transient events such as ISO 7637-2 load dump spikes and IEC 61000-4-5 surges.
Thermally, it delivers 6.5 W steady-state power dissipation at 50 °C ambient on an infinite heatsink, with RθJA = 75 °C/W and RθJL = 15 °C/W. The device is rated for operation from –65 °C to +150 °C junction temperature and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 13.6 V - Maximum continuous reverse working voltage before conduction begins; defines safe operating margin below breakdown. |
| VBR (Breakdown) | 15.2–16.8 V at 1 mA - Confirmed avalanche onset range; ensures predictable turn-on during transients. |
| VC (Clamping) | 22.5 V at 66.7 A (10/1000 µs) - Peak voltage seen by protected circuit under full-rated surge; critical for IC survival. |
| PPPM | 1500 W - Peak pulse power handling capacity; supports high-energy transients without failure. |
| IPPM | 66.7 A - Maximum non-repetitive surge current; determines minimum trace width and PCB layout robustness. |
| TJ max. | +150 °C - Maximum junction temperature; enables use in under-hood automotive environments. |
| AEC-Q101 Qualified | Yes - Validated for automotive-grade reliability including temperature cycling, HTRB, and surge endurance. |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Cathode indicated by band marking; polarity-critical for unidirectional operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; connected to system ground or lower-potential node. | Provides reference path for clamping; must be routed with low-inductance connection to minimize overshoot. |
| Cathode | Current exit terminal in forward bias; connected to protected line (e.g., 12 V rail). | Band-marked end; reverse-biased during normal operation; conducts surge current to ground when VPROTECTED > VBR. |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power (10/1000 µs) | Enables protection against severe automotive load dump (ISO 7637-2 Pulse 5a) without derating or parallel devices. |
| AEC-Q101 qualification | Validates long-term reliability in automotive applications including engine control units and body electronics. |
| Low incremental surge resistance | Minimizes clamping voltage overshoot during fast-rising transients, improving protection margin for downstream ICs. |
| Glass passivated chip junction | Ensures stable VBR over temperature and lifetime, with reduced parameter drift vs. epoxy-passivated alternatives. |
| MSL Level 1 (260 °C peak) | Supports standard lead-free reflow profiles without preconditioning, simplifying manufacturing integration. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump transients up to 35 V and 100 ms duration. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and chassis ground to clamp overvoltage before reaching DC-DC converters and microcontrollers. Use Value: Clamps to 22.5 V at 66.7 A, maintaining safe operating voltage for 5 V/3.3 V logic despite 35 V input spikes. |
Use Scenario: Safeguarding analog sensor inputs (e.g., pressure, temperature) in factory automation PLC modules exposed to relay switching noise. IC Role / Device Role / Timing Role: Low-capacitance TVS on differential signal pairs to suppress sub-100 ns EFT bursts without distorting signal integrity. Use Value: Sub-1 ns response time and 22.5 V clamping prevent latch-up or damage to precision ADC front-ends. |
| Telecom Power Supply Input | Consumer Device USB Port Protection |
|
Use Scenario: Secondary-side overvoltage protection on 48 V telecom rectifier outputs feeding PoE injectors. IC Role / Device Role / Timing Role: Standoff-rated TVS absorbing repetitive surges from lightning-induced coupling on outdoor cabling. Use Value: 1500 W rating and 0.01% duty cycle support withstand of multiple IEC 61000-4-5 4 kV surges without degradation. |
Use Scenario: Input-stage surge protection for USB-C power delivery circuits in portable monitors and docking stations. IC Role / Device Role / Timing Role: Unidirectional clamp on VBUS line to limit voltage excursions during hot-plug and ESD events. Use Value: 13.6 V VWM allows normal 5–20 V PD operation while clamping to 22.5 V during 8/20 µs transients. |
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 peak power (600 W), SMB (DO-214AA) package, same VWM/VBR range but higher VC (26.0 V @ 24.3 A). | Not AEC-Q101 qualified; suited for commercial-grade consumer or computing applications only. | Select when cost and board space are prioritized over automotive reliability and surge energy handling. |
| 1.5KE16A | Through-hole TO-204AE (DO-41) package, identical electrical specs but no AEC-Q101 qualification and higher thermal resistance. | Limited to non-automotive, low-volume, or prototyping use due to manual assembly and inferior thermal performance. | Choose only for legacy designs requiring through-hole mounting or where SMT infrastructure is unavailable. |
Compared with SMBJ16A-E3/52 and 1.5KE16A, the 1.5SMC16AHE3_A/H delivers superior surge robustness (1500 W vs. 600 W or 1500 W with inferior thermal path), AEC-Q101 validation for automotive deployment, and optimized SMC footprint for automated high-volume production - making it the preferred choice for mission-critical 12 V rail protection.
Availability
1.5SMC16AHE3_A/H is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, and telecom power supply inputs requiring stable component supply, AEC-Q101 compliance, and high-energy transient immunity.
Supply support for 1.5SMC16AHE3_A/H 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, optoelectronics, and passive components for automotive, industrial, and computing markets.
The 1.5SMC Series was engineered specifically for surface-mount transient suppression in harsh environments, emphasizing AEC-Q101 qualification, low clamping voltage, and robust surge handling across automotive 12 V/24 V systems.
FAQ
What is the clamping voltage of the 1.5SMC16AHE3_A/H at its rated peak pulse current?
The 1.5SMC16AHE3_A/H has a maximum clamping voltage (VC) of 22.5 V at 66.7 A peak pulse current with a 10/1000 µs waveform. This value is measured under standardized test conditions per JEDEC standards and defines the upper voltage limit imposed on the protected circuit during full-rated surge events. It is confirmed in the Vishay 1.5SMC series datasheet (Document Number: 88303, page 2) and remains stable across temperature due to the device's low temperature coefficient of VBR (0.086 %/°C).
Is the 1.5SMC16AHE3_A/H suitable for automotive applications?
Yes, the 1.5SMC16AHE3_A/H is explicitly AEC-Q101 qualified, as indicated by the "HE3" suffix and confirmed in the Vishay ordering information table (page 3). It undergoes rigorous stress testing including temperature cycling, high-temperature reverse bias, and surge endurance - making it approved for use in engine control units, body control modules, and ADAS power supplies. Its SMC package also meets MSL Level 1 for lead-free reflow compatibility in automotive manufacturing.
What does the "_A/H" suffix mean in 1.5SMC16AHE3_A/H?
The "_A/H" suffix in 1.5SMC16AHE3_A/H denotes two packaging attributes: "A" indicates the device belongs to the AEC-Q101 qualified variant group (applicable to 1.5SMC6.8A through 1.5SMC220A), and "H" specifies the delivery mode - 7-inch diameter plastic tape and reel with 850 units per reel. This ordering code format is defined in the Vishay 1.5SMC Series datasheet (page 3, Ordering Information section) and ensures traceable, production-ready packaging for SMT lines.
How does the 1.5SMC16AHE3_A/H compare to bidirectional TVS diodes like 1.5SMC16CA?
The 1.5SMC16AHE3_A/H is unidirectional and intended for DC rail protection where polarity is fixed (e.g., 12 V to ground), offering tighter VBR tolerance and lower leakage. In contrast, 1.5SMC16CA is bidirectional and used for AC or floating signal lines (e.g., RS-485), with symmetrical clamping in both directions. Electrical characteristics differ: 1.5SMC16CA has VWM = 13.6 V but VBR = 15.2–16.8 V in each direction and VC = 22.5 V at 66.7 A - same clamping, but double the leakage at VWM. Selection depends strictly on circuit topology and polarity requirements.
What is the thermal resistance of the 1.5SMC16AHE3_A/H, and how does it affect PCB layout?
The 1.5SMC16AHE3_A/H has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W and junction-to-leads (RθJL) of 15 °C/W, per the Vishay datasheet (page 3, Thermal Characteristics). For reliable operation at full 6.5 W power dissipation, PCB copper pads must follow the recommended 0.31" × 0.31" (8.0 mm × 8.0 mm) layout per terminal. Smaller pads increase thermal impedance, risking junction overheating during sustained surge repetition - especially critical in automotive under-hood applications where ambient temperatures exceed 85 °C.
1.5SMC16AHE3_A/H 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/H FAQ
1.How can I place an order for 1.5SMC16AHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC16AHE3_A/H 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/H reliable?
The price and inventory of 1.5SMC16AHE3_A/H 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/H is usually 5 days.
3.What payment methods are accepted for 1.5SMC16AHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC16AHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC16AHE3_A/H?
1.5SMC16AHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC16AHE3_A/H 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/H?
For technical support, including 1.5SMC16AHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC16AHE3_A/H requirements.
6.How does Aetrix verify that 1.5SMC16AHE3_A/H is sourced from the original manufacturer or authorized distributors?
All 1.5SMC16AHE3_A/H 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/H meets industry standards.
7.What is the process for return or replacement of 1.5SMC16AHE3_A/H?
All 1.5SMC16AHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC16AHE3_A/H, 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/H part is unused and in its original packaging.
Return procedure for 1.5SMC16AHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC16AHE3_A/H Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
