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Vishay General Semiconductor - Diodes Division 1.5SMC110AHM3/I
- Part No.:
- 1.5SMC110AHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC110AHM3/I.pdf
- Description:
- TVS DIODE 94VWM 152VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,062
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Product details
Overview
1.5SMC110AHM3/I from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode designed for robust overvoltage protection in power rails and signal lines. It features a 110 V breakdown voltage (VBR min = 105 V, max = 116 V), 94.0 V stand-off voltage (VWM), 152 V clamping voltage (VC) at 9.9 A peak pulse current, and 1500 W peak pulse power rating with 10/1000 μs waveform - deployed in automotive sensor interfaces, industrial I/O modules, and DC power input stages.
For engineers reviewing the 1.5SMC110AHM3/I datasheet, 1.5SMC110AHM3/I pinout, 1.5SMC110AHM3/I application, or 1.5SMC110AHM3/I equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, SMC (DO-214AB) package dimensions, thermal resistance (RθJA = 75 °C/W), and real-world clamping behavior under surge conditions.
Technical Context
The 1.5SMC110AHM3/I operates as a unidirectional avalanche diode, conducting only when reverse voltage exceeds its breakdown threshold to shunt transient energy to ground. Its glass-passivated junction ensures stable VBR tolerance (±5 %), low incremental surge resistance, and fast response time (<1 ns), enabling effective suppression of ESD, lightning-induced surges, and inductive switching spikes.
Rated for 1500 W peak pulse power (10/1000 μs), it sustains 9.9 A IPPM while clamping to ≤152 V - critical for protecting downstream 100 V-rated MOSFETs or microcontrollers. With TJ range of –65 °C to +150 °C and MSL Level 1 moisture sensitivity, it supports reflow soldering at 260 °C peak and meets automotive reliability requirements via AEC-Q101 qualification (HM3 suffix).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 105 V / 116 V at 1 mA test current - defines precise avalanche onset window for predictable clamping initiation |
| VWM | 94.0 V - maximum continuous reverse operating voltage before leakage exceeds 1 μA; sets safe DC rail margin |
| VC @ IPPM | 152 V at 9.9 A - clamped voltage during full 1500 W transient; determines protected circuit's peak stress level |
| PPPM | 1500 W (10/1000 μs) - peak surge handling capacity; enables single-device protection for Class III lightning events |
| RθJA | 75 °C/W - thermal resistance from junction to ambient on standard 8 mm × 8 mm copper pads; informs derating above 25 °C |
| TJ Range | –65 °C to +150 °C - extended temperature operation suitable for under-hood automotive and industrial environments |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC specification |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, halogen-free, RoHS-compliant, matte tin-plated leads. Cathode indicated by band; anode is unmarked end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connected to protected line; conducts surge current to ground when VREV > VBR |
| Anode (unmarked end) | Reference/ground return | Typically tied to system ground or low-impedance return path; completes clamping loop |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power | Handles high-energy transients (e.g., ISO 7637-2 Pulse 5a) without failure in automotive power inputs |
| Low clamping ratio (VC/VBR ≈ 1.45) | Minimizes overvoltage stress on protected ICs - critical for 100 V logic or gate drivers |
| AEC-Q101 qualified (HM3 suffix) | Validated for automotive applications including engine control units and ADAS sensor interfaces |
| MSL Level 1, 260 °C reflow compatible | Supports standard lead-free assembly without preconditioning or special handling |
| Glass passivated junction | Ensures long-term VBR stability and low leakage (<1 μA at VWM) across temperature and life |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Clamping |
|---|---|
|
Use Scenario: 12 V/24 V battery-fed ECUs exposed to load dump (ISO 16750-2) and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and chassis ground to clamp surges before they reach LDOs or MCU power pins. Use Value: Clamps to 152 V at 9.9 A, limiting stress on 36 V-rated input regulators and preventing latch-up in 5 V/3.3 V domain supplies. |
Use Scenario: Analog output lines (e.g., 4–20 mA current loops) in factory automation sensors subject to cable ESD and field wiring faults. IC Role / Device Role / Timing Role: Bidirectional-capable unidirectional device used with series resistor to protect op-amp inputs and ADC front-ends. Use Value: Sub-1 ns response captures fast transients; 152 V clamping prevents damage to ±15 V op-amps and maintains signal integrity below 100 mV error band. |
| DC-DC Converter Input Stage | Telecom Power Interface |
|
Use Scenario: 48 V telecom rectifier outputs feeding isolated DC-DC converters susceptible to lightning-induced surges on building entry points. IC Role / Device Role / Timing Role: Primary overvoltage clamp upstream of input filter and converter primary-side FETs. Use Value: 1500 W rating absorbs 10/1000 μs surges up to 1 kV; 94 V VWM allows safe operation with 48 V ±10 % nominal input. |
Use Scenario: Central office line cards receiving -48 V DC power with risk of accidental AC mains contact or induced surges. IC Role / Device Role / Timing Role: Standoff-rated TVS on power feed line to prevent catastrophic failure during fault conditions. Use Value: 150 °C max junction temperature and halogen-free HM3 construction meet Telcordia GR-1089-CORE and RoHS compliance mandates. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ110A-E3/52 | Lower PPPM (600 W), same VBR range, SMB package (smaller footprint, higher RθJA = 90 °C/W) | Limited to lower-energy transients (e.g., IEC 61000-4-5 Level 2); unsuitable for load dump or lightning | Select when board space is constrained and surge threat level is moderate (e.g., consumer USB ports) |
| 1.5KE110A | Through-hole DO-201 package, identical VBR/VC, but slower thermal response and no AEC-Q101 qualification | Not suitable for automated SMT lines or automotive under-hood use; requires wave soldering | Choose only for legacy through-hole designs or prototyping where reflow compatibility is not required |
Compared with SMBJ110A-E3/52 and 1.5KE110A, the 1.5SMC110AHM3/I delivers superior surge robustness (1500 W vs. 600 W or 1500 W with inferior thermal performance), AEC-Q101 validation for automotive deployment, and optimized SMT manufacturability - making it the preferred choice for production-grade 12–48 V systems requiring field reliability.
Availability
1.5SMC110AHM3/I is available at Aetrix Electronics and suitable for automotive electronic control units, industrial programmable logic controllers, telecom power distribution units, and DC-DC converter input stages requiring stable component supply across multi-year production cycles.
Supply support for 1.5SMC110AHM3/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, MOSFETs, optoelectronics, and passive components with emphasis on reliability, efficiency, and application-specific optimization.
The 1.5SMC Series was developed for high-power, surface-mount transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where compact size, AEC-Q101 compliance, and repeatable clamping performance are mandatory.
FAQ
What is the clamping voltage of the 1.5SMC110AHM3/I at its rated peak pulse current?
The 1.5SMC110AHM3/I has a maximum clamping voltage (VC) of 152 V at 9.9 A peak pulse current (IPPM) under the standard 10/1000 μs waveform. This value is measured per Figure 1 in Vishay document 88303 and defines the upper voltage limit imposed on protected circuitry during full-rated surge events - critical for ensuring downstream components remain within their absolute maximum ratings.
Is the 1.5SMC110AHM3/I qualified for automotive applications?
Yes, the 1.5SMC110AHM3/I is AEC-Q101 qualified, as confirmed by the "HM3" suffix in its ordering code. This qualification covers temperature cycling, high-temperature reverse bias (HTRB), and ESD testing per AEC-Q101 Rev G, making the 1.5SMC110AHM3/I suitable for under-hood and body-control module applications in passenger vehicles and commercial vehicles.
What does the "HM3" suffix indicate in 1.5SMC110AHM3/I?
The "HM3" suffix in 1.5SMC110AHM3/I denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification. The "H" indicates halogen-free molding compound, "M3" confirms RoHS compliance and JESD201 Class 2 whisker resistance, and the absence of a revision letter after "HM3" implies baseline qualification - distinct from HE3 (RoHS only) or HM3_A (first revision).
How does the 1.5SMC110AHM3/I differ from bidirectional variants like 1.5SMC110CA?
The 1.5SMC110AHM3/I is unidirectional, with polarity marked by a cathode band and intended for DC line protection where current flows in one direction. In contrast, 1.5SMC110CA is bidirectional, lacks polarity marking, and suppresses transients in both directions - suitable for AC lines or differential signal pairs. Their VBR, VC, and PPPM are identical, but circuit placement and grounding strategy differ fundamentally.
What is the thermal resistance of the 1.5SMC110AHM3/I, and how does it affect derating?
The 1.5SMC110AHM3/I has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on 0.31″ × 0.31″ (8 mm × 8 mm) copper pads per terminal. This value directly governs power derating: at 75 °C ambient, its 6.5 W steady-state dissipation drops to ~4.3 W; full 1500 W surge capability remains valid only for short pulses (<100 ms) due to thermal inertia.
1.5SMC110AHM3/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:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 94V
- Voltage - Breakdown (Min):
- 105V
- Voltage - Clamping (Max) @ Ipp:
- 152V
- Current - Peak Pulse (10/1000µs):
- 9.9A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
1.5SMC110AHM3/I FAQ
1.How can I place an order for 1.5SMC110AHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC110AHM3/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 1.5SMC110AHM3/I reliable?
The price and inventory of 1.5SMC110AHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC110AHM3/I is usually 5 days.
3.What payment methods are accepted for 1.5SMC110AHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC110AHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC110AHM3/I?
1.5SMC110AHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC110AHM3/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 1.5SMC110AHM3/I?
For technical support, including 1.5SMC110AHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC110AHM3/I requirements.
6.How does Aetrix verify that 1.5SMC110AHM3/I is sourced from the original manufacturer or authorized distributors?
All 1.5SMC110AHM3/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 1.5SMC110AHM3/I meets industry standards.
7.What is the process for return or replacement of 1.5SMC110AHM3/I?
All 1.5SMC110AHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC110AHM3/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 1.5SMC110AHM3/I part is unused and in its original packaging.
Return procedure for 1.5SMC110AHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC110AHM3/I Tags
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DESD3V3E1BL-7B
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