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Vishay General Semiconductor - Diodes Division 1.5SMC75CAHM3/H
- Part No.:
- 1.5SMC75CAHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC75CAHM3/H.pdf
- Description:
- TVS DIODE 64.1VWM 104VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,579
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Product details
Overview
1.5SMC75CAHM3/H from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode designed for robust overvoltage 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 rating with 10/1000 µs waveform - deployed in automotive sensor interfaces, industrial I/O modules, and telecom line protection.
For engineers reviewing the 1.5SMC75CAHM3/H datasheet, 1.5SMC75CAHM3/H pinout, 1.5SMC75CAHM3/H application, or 1.5SMC75CAHM3/H equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, SMC (DO-214AB) package dimensions, clamping performance under surge conditions, and direct alternative part comparisons for ESD and lightning transient mitigation.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, enabling protection of AC-coupled or differential signal paths without polarity constraints. Its glass-passivated junction ensures stable leakage (<1 µA at 64.1 V) and fast response time (<1.0 ns), critical for suppressing ESD (IEC 61000-4-2) and lightning-induced transients (IEC 61000-4-5).
The device is rated for 150 °C maximum junction temperature and derates linearly above 25 °C ambient per Fig. 2; thermal resistance is 75 °C/W (junction-to-ambient) on standard 8.0 mm × 8.0 mm copper pads. It meets J-STD-020 MSL Level 1 and JESD201 Class 2 whisker resistance requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 64.1 V - Maximum continuous reverse operating voltage before conduction begins; defines safe operating margin for 48 V DC systems. |
| VBR (min) | 71.3 V - Minimum breakdown voltage at 1 mA test current; guarantees reliable turn-on during overvoltage events. |
| VC @ IPPM | 104 V - Clamped voltage at 14.6 A peak pulse current; limits downstream IC stress during 1500 W transient surges. |
| IPPM | 14.6 A - Peak pulse current capability with 10/1000 µs waveform; supports high-energy lightning strike suppression. |
| PPPM | 1500 W - Peak pulse power dissipation; enables single-device protection for demanding industrial and automotive surge standards. |
| TJ max | 150 °C - Maximum junction temperature; allows operation in under-hood automotive environments and enclosed industrial enclosures. |
| 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 solderable per J-STD-002. Dimensions: 7.11 mm × 6.22 mm × 2.62 mm (L × W × H); cathode band absent (bidirectional).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Terminal 1 | One side of symmetrical PN junction; connects to protected line (e.g., CAN_H or RS-485 A) without polarity dependency. |
| Anode | Terminal 2 | Second terminal of bidirectional structure; forms low-impedance shunt path during either polarity overvoltage event. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables protection of AC, differential, or floating signal lines (e.g., USB D+/D−, RS-485) without orientation sensitivity. |
| 1500 W peak pulse power | Meets IEC 61000-4-5 Level 4 (4 kV surge) with margin when mounted on recommended 8.0 mm × 8.0 mm copper pads. |
| AEC-Q101 qualified (HM3 suffix) | Validated for automotive applications including engine control units, ADAS sensors, and infotainment power rails. |
| Low clamping ratio (VC/VBR ≈ 1.46) | Minimizes voltage overshoot during transients, reducing risk of latch-up or damage to 75 V-rated downstream components. |
| MSL Level 1, 260 °C reflow compatible | Supports standard lead-free SMT assembly without moisture sensitivity concerns or baking requirements. |
Applications
| Automotive Sensor Protection | Industrial RS-485 Interface |
|---|---|
Use Scenario: Protecting LIN/CAN transceivers and MEMS pressure sensors from load dump and ESD in vehicle body control modules. IC Role / Device Role / Timing Role: Bidirectional TVS placed across signal/power pins to clamp transients before they reach sensitive analog front-ends. Use Value: Maintains signal integrity during 12 V/24 V system load dump (ISO 7637-2 Pulse 5a) and prevents sensor calibration drift caused by voltage overshoot. |
Use Scenario: Shielding RS-485 transceivers in factory automation PLCs from ground loop surges and induced lightning transients on long cable runs. IC Role / Device Role / Timing Role: Low-capacitance TVS connected between differential pair (A/B) and ground to suppress common-mode surges without distorting data timing. Use Value: Ensures >100 kbps data integrity under IEC 61000-4-5 2 kV surge tests while maintaining <1.5 pF junction capacitance at zero bias. |
| Telecom DSL Line Protection | Consumer Power Adapter Input |
Use Scenario: Safeguarding ADSL/VDSL line drivers and transformers against lightning-induced surges entering via outdoor copper pairs. IC Role / Device Role / Timing Role: Primary-level TVS placed at line entry point to absorb >100 A surge currents before reaching isolation transformer and PHY IC. Use Value: Prevents catastrophic failure of line interface ICs during Category B (10/700 µs) telecom surge events per GR-1089-CORE. |
Use Scenario: Overvoltage clamping on secondary-side DC output of wall adapters used in smart home hubs and IoT gateways. IC Role / Device Role / Timing Role: Secondary-side TVS across +VOUT/GND to limit transient spikes from switching noise or capacitor discharge events. Use Value: Eliminates need for additional filtering stages by clamping 1500 W surges to ≤104 V, protecting 65 V-rated DC-DC controllers and USB-PD ICs. |
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 | Same VWM (64.1 V) and VC (104 V), but lower PPPM = 600 W; SMB package (smaller footprint, higher RθJA = 85 °C/W). | Best suited for space-constrained consumer electronics where surge energy is limited to IEC 61000-4-2 ESD only. | Select SMBJ75CA only if layout area is restricted and peak surge energy remains below 600 W - not suitable for automotive load dump or telecom lightning. |
| 1.5KE75CA | Through-hole DO-201 package; identical VWM, VBR, VC, and PPPM; higher IFSM (200 A vs. 14.6 A pulsed) but no AEC-Q101 qualification. | Used in legacy industrial power supplies where manual assembly or high-reliability through-hole mounting is required. | Choose 1.5KE75CA for prototyping or non-automotive production where board real estate permits through-hole placement and AEC-Q101 is not mandated. |
Compared with 1.5SMC75CAHM3/H, SMBJ75CA trades surge robustness for compactness, while 1.5KE75CA retains full 1500 W capability but lacks automotive qualification and SMT compatibility - making 1.5SMC75CAHM3/H the optimal choice for AEC-Q101-compliant, high-density automotive and industrial designs requiring surface-mount reliability.
Availability
1.5SMC75CAHM3/H is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial RS-485 networks, telecom line protection, and consumer power adapter outputs requiring stable component supply, AEC-Q101 compliance, and consistent 1500 W surge handling.
Supply support for 1.5SMC75CAHM3/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 optimization.
The 1.5SMC Series targets high-energy transient suppression in automotive, industrial, and telecom infrastructure - engineered for rapid response, low clamping, and robust thermal performance in surface-mount form factors.
FAQ
What is the clamping voltage of the 1.5SMC75CAHM3/H under a 10/1000 µs surge?
The 1.5SMC75CAHM3/H clamps to a maximum of 104 V at its rated peak pulse current of 14.6 A with a 10/1000 µs waveform. This value is guaranteed per the Vishay datasheet (Document Number: 88303, Rev. 09-Mar-2026) and reflects worst-case performance under standardized surge testing conditions on recommended PCB pad layouts.
Is the 1.5SMC75CAHM3/H suitable for automotive applications?
Yes, the 1.5SMC75CAHM3/H is AEC-Q101 qualified (denoted by the HM3 suffix), meaning it has passed rigorous stress tests including temperature cycling, high-temperature reverse bias, and ESD verification. It is explicitly intended for automotive use cases such as sensor protection, infotainment power rails, and body control module interfaces.
What does the "CA" suffix indicate in 1.5SMC75CAHM3/H?
The "CA" suffix in 1.5SMC75CAHM3/H denotes a bidirectional configuration - meaning the device provides symmetrical transient suppression for both positive and negative voltage excursions. Unlike unidirectional variants (e.g., 1.5SMC75AHM3/H), it has no polarity marking and functions identically regardless of terminal orientation.
What is the standoff voltage (VWM) of the 1.5SMC75CAHM3/H?
The standoff voltage (VWM) of the 1.5SMC75CAHM3/H is 64.1 V - the maximum DC or continuous peak voltage the device can withstand without entering avalanche conduction. This parameter ensures compatibility with 48 V nominal systems and provides a safe margin below the 71.3 V minimum breakdown threshold.
Does the 1.5SMC75CAHM3/H have a defined pinout or polarity marking?
No, the 1.5SMC75CAHM3/H is a bidirectional TVS diode in an SMC (DO-214AB) package and carries no polarity marking. Both terminals are functionally identical; the device conducts equally in either direction once the breakdown voltage is exceeded. The absence of a cathode band confirms its bidirectional nature.
1.5SMC75CAHM3/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:
- -
- 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:
- 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)
1.5SMC75CAHM3/H FAQ
1.How can I place an order for 1.5SMC75CAHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC75CAHM3/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 1.5SMC75CAHM3/H reliable?
The price and inventory of 1.5SMC75CAHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC75CAHM3/H is usually 5 days.
3.What payment methods are accepted for 1.5SMC75CAHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC75CAHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC75CAHM3/H?
1.5SMC75CAHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC75CAHM3/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 1.5SMC75CAHM3/H?
For technical support, including 1.5SMC75CAHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC75CAHM3/H requirements.
6.How does Aetrix verify that 1.5SMC75CAHM3/H is sourced from the original manufacturer or authorized distributors?
All 1.5SMC75CAHM3/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 1.5SMC75CAHM3/H meets industry standards.
7.What is the process for return or replacement of 1.5SMC75CAHM3/H?
All 1.5SMC75CAHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC75CAHM3/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 1.5SMC75CAHM3/H part is unused and in its original packaging.
Return procedure for 1.5SMC75CAHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC75CAHM3/H Tags
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