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Vishay General Semiconductor - Diodes Division 1.5SMC7.5AHM3_A/H
- Part No.:
- 1.5SMC7.5AHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC7.5AHM3_A/H.pdf
- Description:
- TVS DIODE 6.4VWM 11.3VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:4,155
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Product details
Overview
1.5SMC7.5AHM3_A/H 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 7.13 V minimum breakdown voltage (VBR), 6.40 V standoff voltage (VWM), 11.3 V maximum clamping voltage at 133 A peak pulse current, 1500 W peak pulse power rating (10/1000 µs), and operates across -65 °C to +150 °C junction temperature range - deployed in automotive sensor interfaces and industrial power supply input stages.
For engineers reviewing the 1.5SMC7.5AHM3_A/H datasheet, 1.5SMC7.5AHM3_A/H pinout, 1.5SMC7.5AHM3_A/H application, or 1.5SMC7.5AHM3_A/H equivalent, key selection criteria include clamping performance under 10/1000 µs surge, unidirectional polarity marking, SMC (DO-214AB) package thermal resistance (RθJA = 75 °C/W), AEC-Q101 qualification status, and compatibility with automated SMT placement on 8.0 mm × 8.0 mm copper pads.
Technical Context
This device operates as a unidirectional avalanche diode, triggered when reverse voltage exceeds its 7.13–7.88 V breakdown range at 10 mA test current. Its glass-passivated junction enables fast response (<1 ns) and low incremental surge resistance, ensuring precise clamping during ESD or lightning-induced transients.
Designed for surface-mount use in the SMC (DO-214AB) package, it delivers 1500 W peak pulse power handling with 0.01% duty cycle, derated above 25 °C per Fig. 2, and meets J-STD-020 MSL Level 1 with 260 °C reflow peak. The cathode band denotes polarity; no marking is used for bidirectional variants.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 7.13 V / 7.88 V at 10 mA - defines reliable avalanche initiation threshold for overvoltage triggering |
| VWM | 6.40 V - maximum continuous reverse operating voltage before leakage exceeds 500 μA |
| VC @ IPPM | 11.3 V at 133 A - clamped voltage during full 1500 W surge, limiting downstream IC stress |
| PPPM | 1500 W (10/1000 µs) - peak transient energy absorption capability without failure |
| IFSM | 200 A (8.3 ms half-sine) - surge current tolerance for unidirectional forward conduction events |
| TJ Range | -65 °C to +150 °C - validated operating and storage range for under-hood automotive and industrial environments |
| AEC-Q101 | Qualified - certified for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, matte tin-plated leads, UL 94 V-0 molding compound, 0.260" × 0.320" footprint (6.60 mm × 8.13 mm), cathode band marking for polarity identification.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Reverse voltage reference node | Connected to protected line ground or low-side return path; forms clamping loop with cathode |
| Cathode | Avalanche conduction terminal / High-side connection point | Marked with band; ties to supply rail or signal line requiring overvoltage clamp; conducts during reverse surge |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power (10/1000 µs) | Enables protection against severe lightning surges and inductive switching spikes in 12 V/24 V systems |
| AEC-Q101 qualified (HM3 suffix) | Validated for automotive applications including engine control units and ADAS sensor modules |
| Glass passivated chip junction | Ensures stable VBR and low leakage over lifetime, even under thermal cycling and humidity stress |
| MSL Level 1, 260 °C peak reflow | Supports standard lead-free SMT assembly without pre-baking or special handling |
| Low clamping ratio (VC/VBR ≈ 1.5) | Minimizes voltage overshoot during clamping, reducing risk of damage to downstream MOSFETs or MCUs |
Applications
| Automotive Sensor Protection | Industrial Power Input Stage |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load dump and ISO 7637-2 pulses. IC Role / Device Role: Unidirectional TVS placed between signal line and ground, absorbing transients before they reach the transceiver's ESD structure. Use Value: Clamps 133 A surge to ≤11.3 V, keeping transceiver input within safe operating area while maintaining signal integrity. |
Use Scenario: Safeguarding 24 V DC input rails of PLC I/O modules and motor drives against inductive kickback and AC line coupling. IC Role / Device Role: Primary front-end surge suppressor mounted directly at connector entry point, shunting energy to chassis ground. Use Value: Absorbs 1500 W transient energy without degradation, enabling compliance with IEC 61000-4-5 Level 3 (1 kV/2 kA) requirements. |
| Consumer Power Adapter Output | Telecom DC Feeding Interface |
Use Scenario: Secondary-side overvoltage suppression in USB-C PD adapters and wall chargers to prevent damage during feedback loop faults. IC Role / Device Role: Unidirectional clamp from output rail to ground, activated only during abnormal overvoltage conditions. Use Value: Limits fault voltage to 11.3 V, protecting downstream USB controller ICs rated for ≤20 V absolute maximum ratings. |
Use Scenario: Protecting PoE (Power over Ethernet) powered device (PD) front-end rectifiers and DC-DC controllers from cable-induced surges. IC Role / Device Role: Bidirectional-capable variant not applicable; this unidirectional part used on DC feed side where polarity is fixed and ground-referenced. Use Value: Withstands repeated 10/1000 µs surges up to 133 A, preserving PD functionality during field deployment in noisy telecom cabinets. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ7.5A-E3/57T | Lower peak power (400 W), SMA package (smaller thermal mass), higher RθJA (110 °C/W) | Suitable for space-constrained consumer electronics but insufficient for automotive load dump | Select only for cost-sensitive, non-automotive designs with <500 W surge requirements |
| 1.5SMC7.5AHE3_A/H | Same electrical specs, RoHS-compliant commercial grade (non-AEC-Q101), E3 suffix instead of HM3 | Lacks automotive qualification; acceptable for industrial/commercial power supplies without AEC validation | Choose when AEC-Q101 is not required and halogen-free content is not mandated |
Compared with SMAJ7.5A-E3/57T and 1.5SMC7.5AHE3_A/H, the 1.5SMC7.5AHM3_A/H uniquely combines 1500 W surge capacity, AEC-Q101 qualification, and halogen-free construction - making it the only option qualified for under-hood automotive use with full 12 V system surge immunity.
Availability
1.5SMC7.5AHM3_A/H is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC power inputs, and telecom DC feeding interfaces requiring stable component supply, long-term lifecycle support, and traceable AEC-Q101-compliant sourcing.
Supply support for 1.5SMC7.5AHM3_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, and protection devices with emphasis on reliability, power handling, and automotive qualification.
The 1.5SMC Series was developed specifically for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where 1500 W surge immunity and AEC-Q101 validation are mandatory.
FAQ
What is the clamping voltage of the 1.5SMC7.5AHM3_A/H under maximum surge conditions?
The 1.5SMC7.5AHM3_A/H exhibits a maximum clamping voltage (VC) of 11.3 V when subjected to its rated peak pulse current (IPPM) of 133 A using a 10/1000 µs waveform. This value is measured at TA = 25 °C on specified 8.0 mm × 8.0 mm copper pads and ensures downstream components remain within safe voltage limits during surge events.
Is the 1.5SMC7.5AHM3_A/H qualified for automotive applications?
Yes, the 1.5SMC7.5AHM3_A/H is AEC-Q101 qualified, as confirmed by the "HM3" suffix and documentation in Vishay's 1.5SMC series datasheet (Doc. #88303). This qualification covers temperature cycling, high-temperature reverse bias, and ESD testing - validating its suitability for engine control, body electronics, and ADAS sensor protection.
What does the "_A/H" suffix mean in 1.5SMC7.5AHM3_A/H?
The "_A/H" suffix in 1.5SMC7.5AHM3_A/H indicates revision level "A" and packaging in 7-inch plastic tape and reel (code "H"), containing 850 units per reel. This matches Vishay's ordering convention defined in the datasheet's Ordering Information table for AEC-Q101 qualified halogen-free parts.
How does the 1.5SMC7.5AHM3_A/H differ from the non-AEC-Q101 1.5SMC7.5AHE3_A/H variant?
The 1.5SMC7.5AHM3_A/H differs from 1.5SMC7.5AHE3_A/H primarily in material composition and qualification: HM3 denotes halogen-free, RoHS-compliant, and AEC-Q101 qualified construction, whereas HE3 is RoHS-compliant and AEC-Q101 qualified but not halogen-free. Electrically and dimensionally, both share identical VBR, VWM, VC, and SMC package.
What is the thermal resistance from junction to ambient for the 1.5SMC7.5AHM3_A/H?
The 1.5SMC7.5AHM3_A/H has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on the recommended 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal. This value assumes still air conditions and is critical for calculating safe power derating above 25 °C ambient temperature.
1.5SMC7.5AHM3_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):
- 6.4V
- Voltage - Breakdown (Min):
- 7.13V
- Voltage - Clamping (Max) @ Ipp:
- 11.3V
- Current - Peak Pulse (10/1000µs):
- 133A
- 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)
1.5SMC7.5AHM3_A/H FAQ
1.How can I place an order for 1.5SMC7.5AHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC7.5AHM3_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 1.5SMC7.5AHM3_A/H reliable?
The price and inventory of 1.5SMC7.5AHM3_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 1.5SMC7.5AHM3_A/H is usually 5 days.
3.What payment methods are accepted for 1.5SMC7.5AHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC7.5AHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC7.5AHM3_A/H?
1.5SMC7.5AHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC7.5AHM3_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 1.5SMC7.5AHM3_A/H?
For technical support, including 1.5SMC7.5AHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC7.5AHM3_A/H requirements.
6.How does Aetrix verify that 1.5SMC7.5AHM3_A/H is sourced from the original manufacturer or authorized distributors?
All 1.5SMC7.5AHM3_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 1.5SMC7.5AHM3_A/H meets industry standards.
7.What is the process for return or replacement of 1.5SMC7.5AHM3_A/H?
All 1.5SMC7.5AHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC7.5AHM3_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 1.5SMC7.5AHM3_A/H part is unused and in its original packaging.
Return procedure for 1.5SMC7.5AHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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