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Vishay General Semiconductor - Diodes Division 1.5SMC75CAHE3_A/I
- Part No.:
- 1.5SMC75CAHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC75CAHE3_A/I.pdf
- Description:
- TVS DIODE 64.1VWM 104VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:3,455
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Product details
Overview
1.5SMC75CAHE3_A/I from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode designed for high-energy surge protection in power and signal lines. It features a 75 V standoff voltage (VWM), 82.9 V minimum breakdown voltage (VBR), 104 V maximum clamping voltage (VC) at 14.6 A peak pulse current, and 1500 W peak pulse power capability with a 10/1000 μs waveform - deployed in automotive sensor interfaces, industrial I/O modules, and telecom line protection.
For engineers reviewing the 1.5SMC75CAHE3_A/I datasheet, 1.5SMC75CAHE3_A/I pinout, 1.5SMC75CAHE3_A/I application, or 1.5SMC75CAHE3_A/I equivalent, this device delivers AEC-Q101 qualification, MSL Level 1 moisture sensitivity, and DO-214AB (SMC) package compatibility - critical for automotive-grade ESD/surge resilience, PCB space-constrained designs, and high-reliability production ramp planning.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, enabling robust protection against voltage transients induced by inductive switching, lightning surges, and ESD events without polarity dependency. Its glass-passivated junction ensures stable leakage performance and fast response time (<1 ns), while low incremental surge resistance minimizes voltage overshoot during transient clamping.
The device is rated for 150 °C maximum junction temperature and derates linearly above 25 °C ambient per Fig. 2 of the datasheet. Thermal resistance from junction to leads (RθJL = 15 °C/W) supports efficient heat dissipation when mounted on recommended 8.0 mm × 8.0 mm copper pads, making it suitable for sustained surge duty cycles up to 0.01 %.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 75 V - Maximum continuous reverse working voltage before clamping begins; defines safe operating margin below breakdown. |
| VBR (Breakdown Voltage) | 82.9–91.6 V at 1 mA - Voltage at which device transitions into avalanche conduction; ensures precise overvoltage triggering. |
| VC (Clamping Voltage) | 104 V at 14.6 A IPPM - Peak voltage seen by protected circuit during 10/1000 μs surge; determines downstream component stress level. |
| PPPM (Peak Pulse Power) | 1500 W - Maximum transient energy absorption capability under standardized 10/1000 μs waveform; enables robust lightning-level immunity. |
| ID (Reverse Leakage) | 1 μA max at 75 V - Ultra-low leakage preserves signal integrity and power efficiency in high-impedance circuits. |
| TJ max | 150 °C - Maximum junction temperature rating; supports operation in under-hood automotive and industrial environments. |
| AEC-Q101 Qualified | Yes - Validated for automotive electronics per stress test requirements including HTGB, HTRB, and TCT; required for engine control, ADAS, and body electronics. |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, bidirectional configuration with no polarity marking - terminals are symmetrical anode/cathode pair.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (bidirectional) | Surge current path (reversible) | Both terminals conduct identically during positive or negative transients; no orientation required during placement. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity concerns. |
| 1500 W peak pulse power | Withstands IEC 61000-4-5 Level 4 (4 kV surge) without degradation when properly mounted. |
| AEC-Q101 qualification | Validates reliability for automotive applications including powertrain, chassis, and infotainment systems. |
| MSL Level 1 (260 °C peak) | Supports lead-free reflow soldering without preconditioning; eliminates moisture-related popcorning risk. |
| Glass-passivated junction | Ensures long-term stability of leakage current and breakdown threshold across temperature and life cycle. |
Applications
| Automotive Sensor Interface | Industrial PLC Digital Input |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor front-ends (e.g., pressure, temperature) from load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional transient clamp placed between connector and IC input pins. Use Value: Limits transient voltage to ≤104 V during 10/1000 μs surges, preventing latch-up or gate oxide damage in 3.3 V/5 V interface ICs. |
Use Scenario: Shielding 24 V digital input channels in programmable logic controllers from field-induced surges and relay contact bounce. IC Role / Device Role / Timing Role: Primary surge suppression element at terminal block entry point. Use Value: Absorbs up to 1500 W of transient energy without failure, maintaining system uptime in factory automation environments. |
| Telecom Line Interface | Consumer Appliance Motor Control |
Use Scenario: Safeguarding Ethernet PHYs and DSL line drivers against lightning-induced common-mode surges on outdoor-facing ports. IC Role / Device Role / Timing Role: Secondary-level protection aligned with IEC 61000-4-5 coordination requirements. Use Value: Clamps within nanoseconds to hold protected node below 104 V, preserving signal integrity and reducing need for additional filtering stages. |
Use Scenario: Suppressing back-EMF spikes from brushed DC motors in washing machines, HVAC blowers, and power tools. IC Role / Device Role / Timing Role: Across-the-rail clamp across motor winding terminals. Use Value: Handles repetitive 14.6 A surges at 0.01 % duty cycle, extending MOSFET driver lifetime and eliminating false overcurrent trips. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ75CA | Lower peak pulse power (600 W), SMB (DO-214AA) package, same VWM/VBR range. | Not qualified to AEC-Q101; limited to commercial-grade consumer/industrial use. | Select when board space is tighter and surge threat level is lower (e.g., IEC 61000-4-2 only). |
| 1.5KE75CA | Through-hole TO-218 package, identical electrical specs but higher RθJA (not suitable for dense SMT layouts). | Lacks MSL Level 1 rating; incompatible with lead-free reflow processes without special handling. | Choose only for legacy through-hole designs or where thermal mass from PCB copper outweighs SMT assembly benefits. |
Compared with SMBJ75CA and 1.5KE75CA, the 1.5SMC75CAHE3_A/I uniquely combines AEC-Q101 qualification, 1500 W surge capacity, and SMC package suitability for automated high-volume automotive production - offering superior reliability assurance and process compatibility without layout redesign.
Availability
1.5SMC75CAHE3_A/I is available at Aetrix Electronics and suitable for automotive sensor protection, industrial PLC input conditioning, and telecom line interface applications requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for 1.5SMC75CAHE3_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, TVS devices, and optoelectronics with emphasis on reliability, precision, and application-specific validation.
The 1.5SMC Series was engineered for high-power, surface-mount transient suppression in harsh environments - targeting automotive, industrial, and telecom systems where compact size, surge robustness, and qualification compliance are non-negotiable.
FAQ
What is the clamping voltage of the 1.5SMC75CAHE3_A/I under a 10/1000 μs surge?
The 1.5SMC75CAHE3_A/I has a maximum clamping voltage (VC) of 104 V at 14.6 A peak pulse current (IPPM) under the standardized 10/1000 μs waveform. This value is measured per Figure 1 and Table on page 2 of the Vishay datasheet 88303 and defines the upper voltage limit imposed on protected circuitry during surge events - critical for ensuring downstream ICs remain within absolute maximum ratings.
Is the 1.5SMC75CAHE3_A/I suitable for automotive applications?
Yes, the 1.5SMC75CAHE3_A/I is AEC-Q101 qualified, as confirmed by its HE3 suffix and documentation in Vishay's 1.5SMC Series datasheet (Rev. 09-Mar-2026). This qualification covers stress tests including high-temperature reverse bias, high-temperature operating life, and temperature cycling - making the 1.5SMC75CAHE3_A/I appropriate for engine control units, ADAS sensors, and body electronics where reliability under thermal and mechanical stress is mandatory.
What does the "CA" suffix indicate in 1.5SMC75CAHE3_A/I?
The "CA" suffix in 1.5SMC75CAHE3_A/I denotes a bidirectional configuration - meaning the device provides symmetrical transient suppression for both positive and negative voltage excursions. Unlike unidirectional variants (e.g., 1.5SMC75A), the 1.5SMC75CAHE3_A/I has no cathode band marking and functions identically regardless of polarity, simplifying layout and enabling protection of AC-coupled or floating signal paths such as RS-485 or CAN bus lines.
What is the thermal resistance of the 1.5SMC75CAHE3_A/I?
The 1.5SMC75CAHE3_A/I has a typical junction-to-leads thermal resistance (RθJL) of 15 °C/W and a junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on the recommended 8.0 mm × 8.0 mm copper pad per terminal. These values are specified in the Thermal Characteristics table (page 3) of the Vishay datasheet and directly impact power derating above 25 °C ambient - essential for thermal design validation in enclosed or high-temperature enclosures.
Does the 1.5SMC75CAHE3_A/I require special handling for RoHS-compliant manufacturing?
No special handling is required: the 1.5SMC75CAHE3_A/I carries the HE3 suffix, confirming it is RoHS-compliant and qualified to MSL Level 1 per J-STD-020, with a maximum peak reflow temperature of 260 °C. Its matte tin-plated leads meet J-STD-002 and JESD 22-B102 solderability standards, and it passes JESD 201 Class 2 whisker testing - enabling direct integration into standard lead-free SMT assembly lines without baking or special flux profiles.
1.5SMC75CAHE3_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:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 64.1V
- Voltage - Breakdown (Min):
- 71.3V
- Voltage - Clamping (Max) @ Ipp:
- 104V
- Current - Peak Pulse (10/1000µs):
- 14.6A
- 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)
1.5SMC75CAHE3_A/I FAQ
1.How can I place an order for 1.5SMC75CAHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC75CAHE3_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 1.5SMC75CAHE3_A/I reliable?
The price and inventory of 1.5SMC75CAHE3_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 1.5SMC75CAHE3_A/I is usually 5 days.
3.What payment methods are accepted for 1.5SMC75CAHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC75CAHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC75CAHE3_A/I?
1.5SMC75CAHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC75CAHE3_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 1.5SMC75CAHE3_A/I?
For technical support, including 1.5SMC75CAHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC75CAHE3_A/I requirements.
6.How does Aetrix verify that 1.5SMC75CAHE3_A/I is sourced from the original manufacturer or authorized distributors?
All 1.5SMC75CAHE3_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 1.5SMC75CAHE3_A/I meets industry standards.
7.What is the process for return or replacement of 1.5SMC75CAHE3_A/I?
All 1.5SMC75CAHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC75CAHE3_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 1.5SMC75CAHE3_A/I part is unused and in its original packaging.
Return procedure for 1.5SMC75CAHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC75CAHE3_A/I Tags
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