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Vishay General Semiconductor - Diodes Division 1.5SMC75AHM3_A/H
- Part No.:
- 1.5SMC75AHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC75AHM3_A/H.pdf
- Description:
- TVS DIODE 64.1VWM 104VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,190
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Product details
Overview
1.5SMC75AHM3_A/H from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMC (DO-214AB) package, designed for high-energy surge protection with 71.3 V minimum breakdown voltage (VBR), 64.1 V standoff voltage (VWM), and 1500 W peak pulse power (10/1000 µs). It protects sensitive ICs and MOSFETs in automotive power supplies and industrial sensor interfaces.
For engineers reviewing the 1.5SMC75AHM3_A/H datasheet, 1.5SMC75AHM3_A/H pinout, 1.5SMC75AHM3_A/H application, or 1.5SMC75AHM3_A/H equivalent, key selection criteria include clamping voltage (104 V at 14.6 A), AEC-Q101 qualification, halogen-free RoHS compliance, and thermal resistance (RθJA = 75 °C/W).
Technical Context
This TVS diode operates as a unidirectional clamping device with cathode-band polarity marking, leveraging glass-passivated junction technology for stable avalanche behavior under repetitive transient stress. Its 10/1000 µs waveform response supports IEC 61000-4-5 Level 4 surge immunity requirements.
The device features low incremental surge resistance and fast response time (<1 ns), enabling effective suppression of ESD, lightning-induced transients, and inductive switching spikes. It is rated for -65 °C to +150 °C operating junction temperature and meets J-STD-020 MSL Level 1 reflow compatibility.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 64.1 V - Maximum continuous reverse operating voltage before clamping begins; defines safe working margin below breakdown. |
| VBR (min) | 71.3 V - Minimum breakdown voltage at 1 mA test current; ensures reliable conduction onset during overvoltage events. |
| VC | 104 V - Clamping voltage at 14.6 A peak pulse current; determines maximum voltage seen by protected circuitry. |
| PPPM | 1500 W - Peak pulse power handling capability (10/1000 µs); enables robust protection against high-energy surges. |
| IPPM | 14.6 A - Peak pulse current corresponding to VC; used to size PCB trace widths and verify system-level energy absorption. |
| TJ max | +150 °C - Maximum junction temperature; supports operation in under-hood automotive environments and industrial enclosures. |
| RθJA | 75 °C/W - Junction-to-ambient thermal resistance on standard 8 mm × 8 mm copper pads; informs heatsinking requirements. |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, halogen-free, RoHS-compliant, AEC-Q101 qualified. Cathode indicated by band marking on unidirectional devices.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to ground or lower-potential rail in unidirectional TVS configuration; enables clamping to reference potential. |
| Cathode | Current exit point during reverse-biased clamping | Connected to protected line (e.g., power rail or signal); conducts surge current to ground when VIN exceeds VWM. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and surge endurance per JESD22-A108. |
| Glass-passivated junction | Ensures stable VBR tolerance and long-term parameter stability under thermal and humidity stress. |
| 1500 W peak pulse power | Supports IEC 61000-4-5 4 kV/2 Ω surge testing without degradation in typical PCB layouts. |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and single-reflow processing at 260 °C peak, simplifying SMT manufacturing. |
| Halogen-free & RoHS-compliant | Meets EU Directive 2011/65/EU and IPC-1752A material declaration requirements for green electronics. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
|
Use Scenario: Protecting 12 V battery-fed ECUs from load-dump transients up to 35 V and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power input and ground to clamp surges before they reach DC-DC converters and microcontrollers. Use Value: Limits voltage excursion to ≤104 V during 14.6 A transients, preserving downstream IC integrity per AEC-Q100 stress limits. |
Use Scenario: Shielding analog outputs (e.g., 4–20 mA current loops) in factory-floor pressure/temperature sensors from EFT and ESD. IC Role / Device Role / Timing Role: Low-capacitance TVS connected across signal and return lines to absorb sub-100 ns ESD events without distorting slow analog signals. Use Value: Clamps transients within nanoseconds while adding <1 pF parasitic capacitance, maintaining signal fidelity and loop accuracy. |
| Telecom DC Power Input Protection | Consumer Device USB Port Surge Suppression |
|
Use Scenario: Safeguarding PoE-powered network switches and base stations against lightning-induced surges on 48 V DC inputs. IC Role / Device Role / Timing Role: Primary TVS stage upstream of DC-DC regulation, absorbing bulk surge energy before secondary protection stages. Use Value: Handles 1500 W peak pulses with 104 V clamping, reducing stress on downstream MOVs and polymer PTCs in multi-stage designs. |
Use Scenario: Adding robustness to USB-C power delivery circuits in laptops and docking stations against hot-plug and cable discharge events. IC Role / Device Role / Timing Role: Unidirectional TVS on VBUS line referenced to chassis ground, activated only during overvoltage-not during normal 5–20 V PD operation. Use Value: Prevents latch-up in USB PD controllers by limiting VBUS to 104 V during 8 kV contact ESD, meeting IEC 61000-4-2 Level 4. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ75A | Same VWM (64.1 V), lower PPPM (400 W), SMA package (smaller footprint, higher RθJA = 110 °C/W) | Limited to lower-energy transients; unsuitable for IEC 61000-4-5 Level 4 or automotive load dump. | Select when board space is constrained and surge energy is ≤400 W; verify thermal derating at elevated ambient temperatures. |
| 1.5KE75A | Through-hole DO-201 package, identical electrical specs but no AEC-Q101 qualification or MSL Level 1 rating | Not suitable for automated SMT assembly or automotive under-hood use; requires wave soldering. | Choose only for legacy through-hole designs or prototyping where reflow compatibility and automotive qualification are not required. |
Compared with SMAJ75A and 1.5KE75A, the 1.5SMC75AHM3_A/H delivers superior surge robustness in a surface-mount AEC-Q101-qualified package, enabling automotive and industrial designs requiring both high-reliability mounting and 1500 W transient handling without layout redesign.
Availability
1.5SMC75AHM3_A/H is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor modules, telecom power supplies, and consumer USB-C PD systems requiring stable component supply and long-term lifecycle support.
Supply support for 1.5SMC75AHM3_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 diodes, rectifiers, TVS devices, and optoelectronics with emphasis on reliability and application-specific performance.
The 1.5SMC Series was developed for high-power, surface-mount transient suppression in harsh environments-targeting automotive, industrial, and telecom applications demanding AEC-Q101 qualification and 1500 W surge capability.
FAQ
What is the clamping voltage of the 1.5SMC75AHM3_A/H at its rated peak pulse current?
The 1.5SMC75AHM3_A/H has a maximum clamping voltage (VC) of 104 V at 14.6 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 surge events. The 1.5SMC75AHM3_A/H maintains this clamping performance across its qualified temperature range (-65 °C to +150 °C) when mounted per recommended pad layout.
Is the 1.5SMC75AHM3_A/H suitable for automotive applications?
Yes, the 1.5SMC75AHM3_A/H is AEC-Q101 qualified, as confirmed by its HM3 suffix and documentation in Vishay's 1.5SMC series datasheet (Rev. 09-Mar-2026, Doc. #88303). It meets automotive reliability requirements including temperature cycling, high-temperature reverse bias, and surge endurance testing. The 1.5SMC75AHM3_A/H is explicitly recommended for under-hood ECUs, body control modules, and ADAS sensor power rails where sustained operation up to +150 °C and robust transient immunity are mandatory.
What does the "HM3" suffix indicate in 1.5SMC75AHM3_A/H?
The "HM3" suffix in 1.5SMC75AHM3_A/H denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification. Per Vishay's ordering information table (page 3 of Doc. #88303), HM3 parts use environmentally compliant molding compounds and pass whisker testing per JESD201 Class 2. The "_A/H" further specifies revision A and 7-inch tape-and-reel packaging (850 units per reel). This distinguishes the 1.5SMC75AHM3_A/H from commercial-grade M3 or E3 variants lacking automotive qualification.
How does the thermal performance of the 1.5SMC75AHM3_A/H compare to smaller packages like SMAJ?
The 1.5SMC75AHM3_A/H has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on 8 mm × 8 mm copper pads, significantly lower than the ~110 °C/W of SMAJ-series devices in the SMA package. This 32 % improvement allows the 1.5SMC75AHM3_A/H to sustain higher average power dissipation and maintain lower junction temperatures during repetitive surge events. For designs targeting >1 W average power or operation above 85 °C ambient, the 1.5SMC75AHM3_A/H provides more headroom than SMAJ75A without requiring additional heatsinking.
Can the 1.5SMC75AHM3_A/H be used in bidirectional configurations?
No, the 1.5SMC75AHM3_A/H is a unidirectional TVS diode, as indicated by its "A" suffix and cathode-band marking. Bidirectional operation requires a "CA" suffix (e.g., 1.5SMC75CA). Using the 1.5SMC75AHM3_A/H in reverse-biased AC signal paths would result in forward conduction and potential failure. For bidirectional protection at 75 V standoff, select 1.5SMC75CHM3_A/H instead-the 1.5SMC75AHM3_A/H must be oriented with cathode toward the protected line and anode to ground.
1.5SMC75AHM3_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):
- 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:
- 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)
1.5SMC75AHM3_A/H FAQ
1.How can I place an order for 1.5SMC75AHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC75AHM3_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 1.5SMC75AHM3_A/H reliable?
The price and inventory of 1.5SMC75AHM3_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 1.5SMC75AHM3_A/H is usually 5 days.
3.What payment methods are accepted for 1.5SMC75AHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC75AHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC75AHM3_A/H?
1.5SMC75AHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC75AHM3_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 1.5SMC75AHM3_A/H?
For technical support, including 1.5SMC75AHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC75AHM3_A/H requirements.
6.How does Aetrix verify that 1.5SMC75AHM3_A/H is sourced from the original manufacturer or authorized distributors?
All 1.5SMC75AHM3_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 1.5SMC75AHM3_A/H meets industry standards.
7.What is the process for return or replacement of 1.5SMC75AHM3_A/H?
All 1.5SMC75AHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC75AHM3_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 1.5SMC75AHM3_A/H part is unused and in its original packaging.
Return procedure for 1.5SMC75AHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC75AHM3_A/H Tags
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