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Vishay General Semiconductor - Diodes Division 1.5SMC7.5AHM3/H
- Part No.:
- 1.5SMC7.5AHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC7.5AHM3/H.pdf
- Description:
- TVS DIODE 6.4VWM 11.3VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,293
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Product details
Overview
1.5SMC7.5AHM3/H from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMC (DO-214AB) package, designed for clamping voltage transients on power and signal lines. It features 7.13 V minimum breakdown voltage (VBR), 6.40 V standoff voltage (VWM), 11.3 V maximum clamping voltage (VC) at 133 A peak pulse current, and 1500 W peak pulse power rating with 10/1000 µs waveform - used in automotive sensor protection and industrial I/O interface surge suppression.
For engineers reviewing the 1.5SMC7.5AHM3/H datasheet, 1.5SMC7.5AHM3/H pinout, 1.5SMC7.5AHM3/H application, or 1.5SMC7.5AHM3/H equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification (HM3 suffix), halogen-free RoHS compliance, low incremental surge resistance, and compatibility with automated SMT placement on 8.0 mm × 8.0 mm copper pads.
Technical Context
This device operates as a clamping-type TVS diode with glass-passivated junction and fast response time (<1 ns), enabling effective suppression of ESD, lightning-induced surges, and inductive switching transients. Its unidirectional configuration provides forward conduction path while blocking reverse leakage up to 500 µA at VWM.
The 1.5SMC7.5AHM3/H is rated for 150 °C maximum junction temperature, exhibits 0.061 %/°C temperature coefficient of VBR, and delivers 133 A peak pulse current under standardized 10/1000 µs waveform - derated linearly above 25 °C ambient per Fig. 2 in the datasheet.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min) | 7.13 V - ensures reliable avalanche initiation above normal operating voltage, preventing premature conduction during nominal 5 V or 6 V rail operation. |
| VWM | 6.40 V - maximum continuous reverse voltage before leakage exceeds 500 µA; compatible with 5 V logic and automotive 6 V nominal systems. |
| VC @ IPPM | 11.3 V - clamped voltage at 133 A pulse; limits downstream IC stress to safe levels during 1500 W transient events. |
| IPPM | 133 A - peak pulse current capability with 10/1000 µs waveform; supports robust protection against IEC 61000-4-5 Level 4 surges. |
| PPPM | 1500 W - peak pulse power handling; enables single-device protection for high-energy transients without cascaded stages. |
| TJ max | 150 °C - extended thermal operating range suitable for under-hood automotive environments and industrial enclosures. |
| Package | SMC (DO-214AB) - industry-standard surface-mount outline with 7.75 mm × 6.22 mm footprint and 2.62 mm height; optimized for reflow soldering and mechanical reliability. |
Pinout & Package
Package: SMC (DO-214AB), molded plastic case with matte tin-plated leads, compliant with J-STD-002 and JESD 22-B102 solderability standards. Polarity indicated by cathode band on unidirectional devices.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Reverse voltage reference | Connected to lower-potential side (e.g., ground or return path); defines directionality of clamping action. |
| Cathode | Avalanche conduction terminal / Clamping output | Connected to protected line (e.g., 5 V rail or signal trace); conducts surge current to anode when VAK exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units, body electronics, and ADAS sensor interfaces. |
| Halogen-free & RoHS-compliant | Meets environmental compliance requirements for global OEM supply chains and end-of-life recycling mandates. |
| 1500 W peak pulse power | Enables single-component protection against severe transients without external series impedance or staged clamping. |
| Low clamping ratio (VC/VBR ≈ 1.59) | Minimizes overvoltage stress on downstream ICs compared to higher-ratio suppressors, improving system-level robustness. |
| MSL Level 1 (260 °C peak) | Supports standard lead-free reflow profiles without moisture sensitivity concerns or baking requirements. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load dump and ISO 7637-2 pulses in vehicle ECUs. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between signal line and ground, activated within nanoseconds of overvoltage event. Use Value: Limits transient voltage to ≤11.3 V during 133 A surge, preserving signal integrity and preventing latch-up in 5 V tolerant transceivers. |
Use Scenario: Safeguarding digital input modules in programmable logic controllers exposed to field wiring surges from motor contactor switching. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 24 V DC input channels, shunting energy to common ground before reaching optocoupler input stage. Use Value: Withstands repetitive 1500 W transients at 0.01 % duty cycle, extending module service life in harsh factory environments. |
| Consumer Power Adapter Input | Telecom Line Interface Protection |
|
Use Scenario: Secondary-side surge suppression on 5 V/12 V outputs of AC-DC adapters subject to conducted EFT and lightning-induced coupling. IC Role / Device Role / Timing Role: Final-stage clamping device after primary MOV and fuse, ensuring precise voltage limiting near regulated rails. Use Value: 6.40 V VWM avoids false triggering during normal ripple, while 11.3 V VC prevents damage to USB-PD controllers or LDOs. |
Use Scenario: Protecting Ethernet PHY interface pins (e.g., MDI-X pairs) from induced surges on unshielded twisted-pair cabling in enterprise switches. IC Role / Device Role / Timing Role: Point-of-entry TVS on differential signal lines, configured in unidirectional pair to preserve common-mode rejection. Use Value: Low capacitance (typ. <50 pF at 0 V) minimizes signal distortion at 100BASE-TX frequencies while maintaining 1500 W surge immunity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ7.0A | Lower PPPM (600 W), smaller SMB package (DO-214AA), 7.0 V VWM, 10.5 V VC at 57 A. | 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 remains below 600 W. |
| 1.5KE7.5A | Through-hole TO-204AE (DO-15) package, identical VBR/VC specs but higher RθJA (100 °C/W), no AEC-Q101 qualification. | Not suitable for automated SMT lines or automotive under-hood thermal environments. | Choose only for legacy through-hole designs where rework flexibility outweighs thermal and qualification needs. |
Compared with SMBJ7.0A and 1.5KE7.5A, the 1.5SMC7.5AHM3/H uniquely combines AEC-Q101 qualification, 1500 W surge capacity in SMC package, and halogen-free compliance - making it the preferred choice for new automotive and industrial SMT designs requiring high-reliability transient suppression.
Availability
1.5SMC7.5AHM3/H is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O cards, consumer power adapter outputs, and telecom line interface circuits requiring stable component supply across multi-year production cycles.
Supply support for 1.5SMC7.5AHM3/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, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific performance.
The 1.5SMC Series was engineered for high-power transient suppression in space-constrained SMT applications, targeting automotive, industrial, and telecom markets where AEC-Q101 qualification and consistent clamping behavior are mandatory.
FAQ
What is the polarity configuration of the 1.5SMC7.5AHM3/H?
The 1.5SMC7.5AHM3/H is a unidirectional TVS diode, with the cathode identified by a visible band on the SMC package body. It conducts in forward bias (anode-to-cathode) only during avalanche breakdown, providing reverse-biased clamping for positive transients on protected lines referenced to ground.
Does the 1.5SMC7.5AHM3/H meet automotive qualification standards?
Yes, the 1.5SMC7.5AHM3/H carries the HM3 suffix, indicating halogen-free, RoHS-compliant construction and full AEC-Q101 qualification. This certification covers stress tests including HTGB, TCT, UHAST, and surge endurance - validating its use in automotive powertrain, chassis, and body electronics.
What is the maximum clamping voltage of the 1.5SMC7.5AHM3/H under surge conditions?
The 1.5SMC7.5AHM3/H has a maximum clamping voltage (VC) of 11.3 V at 133 A peak pulse current with a 10/1000 µs waveform. This value is guaranteed across temperature and lifetime, ensuring predictable overvoltage limiting for downstream 5 V or 6 V logic components.
How does the 1.5SMC7.5AHM3/H compare to bidirectional TVS diodes like 1.5SMC7.5CA?
The 1.5SMC7.5AHM3/H is unidirectional and intended for DC-biased lines where polarity is fixed (e.g., 5 V supply rails). In contrast, 1.5SMC7.5CA is bidirectional and suited for AC or differential signals (e.g., RS-485). The 1.5SMC7.5AHM3/H offers tighter VBR tolerance and lower leakage but cannot protect against negative-going transients without additional circuitry.
What PCB layout guidance applies to the 1.5SMC7.5AHM3/H for optimal thermal and electrical performance?
For optimal performance, mount the 1.5SMC7.5AHM3/H on 8.0 mm × 8.0 mm copper pads per terminal as specified in the datasheet. Minimize trace inductance by placing it directly at the protected node, use short wide traces to ground, and avoid thermal relief on pads to ensure efficient heat dissipation during repetitive surges.
1.5SMC7.5AHM3/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:
- Discontinued at Digi-Key
- 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/H FAQ
1.How can I place an order for 1.5SMC7.5AHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC7.5AHM3/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/H reliable?
The price and inventory of 1.5SMC7.5AHM3/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/H is usually 5 days.
3.What payment methods are accepted for 1.5SMC7.5AHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC7.5AHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC7.5AHM3/H?
1.5SMC7.5AHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC7.5AHM3/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/H?
For technical support, including 1.5SMC7.5AHM3/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/H requirements.
6.How does Aetrix verify that 1.5SMC7.5AHM3/H is sourced from the original manufacturer or authorized distributors?
All 1.5SMC7.5AHM3/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/H meets industry standards.
7.What is the process for return or replacement of 1.5SMC7.5AHM3/H?
All 1.5SMC7.5AHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC7.5AHM3/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/H part is unused and in its original packaging.
Return procedure for 1.5SMC7.5AHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC7.5AHM3/H Tags
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