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Vishay General Semiconductor - Diodes Division SMPC26AN-M3/H
- Part No.:
- SMPC26AN-M3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- TO-277, 3-PowerDFN
- Datasheet:
-
SMPC26AN-M3/H.pdf
- Description:
- TVS DIODE 26VWM 42.1VC TO277A
- Quantity:
- Payment:
- Shipping:
Inventory:1,139
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Product details
Overview
SMPC26AN-M3/H from Vishay General Semiconductor is a unidirectional surface-mount TransZORB® transient voltage suppressor in the SMPC (TO-277A) package, rated for 26 V stand-off voltage (VWM), 28.9–31.9 V breakdown voltage (VBR), and 1500 W peak pulse power (PPPM) with 42.1 V clamping voltage at 35.6 A. It protects MOSFETs and ICs against inductive switching transients in automotive sensor signal lines.
For engineers reviewing the SMPC26AN-M3/H datasheet, SMPC26AN-M3/H pinout, SMPC26AN-M3/H application, or SMPC26AN-M3/H equivalent, this page delivers verified electrical specs, thermal derating behavior, AEC-Q101 qualification status, and direct replacement guidance for automotive-grade TVS selection.
Technical Context
The SMPC26AN-M3/H uses an avalanche diode structure optimized for fast response (<1 ns) and low incremental surge resistance, enabling effective clamping of 10/1000 μs transients without thermal runaway. Its unidirectional polarity and cathode-band marking align with standard PCB layout conventions for reverse-biased protection.
Designed for mounting on FR4 PCBs with 2 oz copper, it achieves RθJA ≤ 100 °C/W and RθJM ≤ 3 °C/W, supporting operation from –55 °C to +150 °C junction temperature. The /H suffix denotes 7" tape-and-reel packaging with halogen-free, RoHS-compliant construction.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 26.0 V - maximum continuous reverse operating voltage before clamping begins |
| VBR min/max | 28.9 V / 31.9 V at 1.0 mA - ensures reliable turn-on within defined tolerance band |
| VC @ IPPM | 42.1 V at 35.6 A - clamping voltage during 10/1000 μs surge, limiting downstream stress |
| PPPM | 1500 W - peak transient power handling capability under standardized waveform |
| TJ max | +150 °C - enables use in under-hood automotive environments with high ambient temperatures |
| Package | SMPC (TO-277A) - 3-terminal SMD outline with 1.1 mm profile, MSL Level 1 compliant |
| AEC-Q101 | Qualified - certified for automotive applications per stress test requirements |
Pinout & Package
SMPC26AN-M3/H uses the SMPC (TO-277A) package: a 3-terminal surface-mount case with cathode band marking on one end. Terminals are matte tin-plated, solderable per J-STD-002 and JESD 22-B102, and meet JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode 1 & Anode 2 | Common anode connection | Internally tied terminals for low-inductance parallel current path during clamping |
| Cathode | Protected line connection point | Connected to the line being protected (e.g., sensor output); band denotes cathode end |
Key Features
| Feature | Design Value |
|---|---|
| Very low profile (1.1 mm height) | Enables placement in space-constrained modules such as automotive ECUs and compact sensor housings |
| Unidirectional configuration | Provides precise overvoltage protection on DC-biased lines without forward conduction interference |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients, improving system-level ESD immunity |
| AEC-Q101 qualified | Validated for automotive use including temperature cycling, HTRB, and mechanical shock per JEDEC standards |
| Halogen-free & RoHS-compliant | Meets global environmental compliance requirements for industrial and automotive production |
Applications
| Automotive Sensor Protection | Industrial Motor Drive I/O |
|---|---|
Use Scenario: Protecting analog output lines of ABS wheel speed sensors exposed to load dump and inductive kickback in 12 V vehicle systems. IC Role / Device Role / Timing Role: Transient voltage suppressor placed directly at connector interface to clamp surges before reaching signal conditioning IC. Use Value: Limits clamped voltage to 42.1 V, ensuring downstream op-amps and ADCs remain within absolute maximum ratings during ISO 7637-2 Pulse 1/2a events. | Use Scenario: Safeguarding digital input lines of PLC modules connected to solenoid valves and contactors. IC Role / Device Role / Timing Role: Unidirectional TVS deployed across isolated 24 V DC inputs to absorb repetitive switching transients. Use Value: Withstands ≥1000 surges at rated IPPM while maintaining VWM stability, reducing field failure rates in factory automation equipment. |
| Telecom Power Interface | Consumer Device USB Port |
Use Scenario: Input-stage protection on PoE-powered network switches subjected to lightning-induced surges on Ethernet pairs. IC Role / Device Role / Timing Role: Primary clamping device on secondary-side 48 V DC supply rails feeding PHY ICs. Use Value: 1500 W PPPM rating handles high-energy transients without degradation, preserving data integrity during surge events. | Use Scenario: Overvoltage guard on VBUS line of USB-C ports in portable monitors and docking stations. IC Role / Device Role / Timing Role: Standoff-rated TVS preventing damage from hot-plug voltage spikes and ESD events up to ±15 kV. Use Value: Fast <1 ns response time and low leakage (<1 μA at 26 V) prevent standby current drain while ensuring robust ESD 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 |
|---|---|---|---|
| SMAJ26A-E3/5A | DO-214AC package; 26 V VWM; 42.1 V VC; 400 W PPPM (vs. 1500 W) | Limited to lower-energy transients; not AEC-Q101 qualified | Select when board space allows larger footprint and automotive qualification is unnecessary |
| SMCJ26A | DO-214AB package; same VWM/VC; 1500 W PPPM; AEC-Q101 available only in HM3 variant | Higher thermal resistance (RθJA ≈ 120 °C/W vs. ≤100 °C/W); taller profile (2.6 mm) | Choose if existing DO-214AB layout exists and 1.1 mm height constraint is not critical |
Compared with SMAJ26A-E3/5A and SMCJ26A, SMPC26AN-M3/H delivers superior power density (1500 W in 1.1 mm height), automotive qualification out-of-box, and lower thermal resistance-making it optimal for next-gen compact, high-reliability automotive and industrial designs.
Availability
SMPC26AN-M3/H is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial motor drive I/O protection, and telecom power rail safeguarding requiring stable component supply across multi-year production cycles.
Supply support for SMPC26AN-M3/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 SMPC series was developed to deliver high-power transient suppression in ultra-low-profile SMD packages for automotive and industrial applications where board height and AEC-Q101 compliance are mandatory.
FAQ
What is the clamping voltage of SMPC26AN-M3/H at its rated peak pulse current?
The SMPC26AN-M3/H has a maximum clamping voltage (VC) of 42.1 V at its rated peak pulse current (IPPM) of 35.6 A under a 10/1000 μs waveform. This value is measured with the cathode mounted to a heatsink and defines the upper voltage limit imposed on protected circuitry during surge events. The clamping performance is guaranteed across the full operating temperature range.
Is SMPC26AN-M3/H qualified for automotive applications?
Yes, SMPC26AN-M3/H is AEC-Q101 qualified. The "AN" suffix in the part number explicitly denotes AEC-Q101 qualification, and Vishay documentation confirms this variant meets all stress tests-including HTGB, HTRB, and temperature cycling-for automotive under-hood and chassis-mounted applications. No additional qualification testing is required for automotive deployment.
What does the "/H" suffix mean in SMPC26AN-M3/H?
The "/H" suffix in SMPC26AN-M3/H specifies the packaging option: 7-inch diameter plastic tape-and-reel with 1500 units per reel. It also indicates halogen-free, RoHS-compliant construction per Vishay's material categorization standard. This differs from /I (13-inch reel, 6500 units) and /86A or /87A (alternate tape widths).
How does the SMPC (TO-277A) package improve thermal performance compared to SMA or SMB?
The SMPC (TO-277A) package provides lower thermal resistance than SMA (DO-214AC) or SMB (DO-214AA): RθJM ≤ 3 °C/W and RθJA ≤ 100 °C/W on FR4 with 2 oz copper. Its dual-anode configuration reduces current-path inductance and improves heat spreading across the PCB pad layout, enabling higher sustained power dissipation without exceeding TJ max = 150 °C.
Can SMPC26AN-M3/H be used in bidirectional configurations?
No, SMPC26AN-M3/H is strictly unidirectional. Its internal structure and cathode-band marking are designed for reverse-biased operation only. For bidirectional protection, Vishay offers separate dual-diode configurations (e.g., SMPC26CA), but SMPC26AN-M3/H must be used with correct polarity alignment-cathode toward the protected line-and cannot substitute for symmetrical TVS devices.
SMPC26AN-M3/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- TO-277, 3-PowerDFN
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 26V
- Voltage - Breakdown (Min):
- 28.9V
- Voltage - Clamping (Max) @ Ipp:
- 42.1V
- Current - Peak Pulse (10/1000µs):
- 35.6A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-277A (SMPC)
SMPC26AN-M3/H FAQ
1.How can I place an order for SMPC26AN-M3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMPC26AN-M3/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 SMPC26AN-M3/H reliable?
The price and inventory of SMPC26AN-M3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMPC26AN-M3/H is usually 5 days.
3.What payment methods are accepted for SMPC26AN-M3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMPC26AN-M3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMPC26AN-M3/H?
SMPC26AN-M3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMPC26AN-M3/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 SMPC26AN-M3/H?
For technical support, including SMPC26AN-M3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMPC26AN-M3/H requirements.
6.How does Aetrix verify that SMPC26AN-M3/H is sourced from the original manufacturer or authorized distributors?
All SMPC26AN-M3/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 SMPC26AN-M3/H meets industry standards.
7.What is the process for return or replacement of SMPC26AN-M3/H?
All SMPC26AN-M3/H units undergo pre-shipment inspection (PSI). If there is an issue with SMPC26AN-M3/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 SMPC26AN-M3/H part is unused and in its original packaging.
Return procedure for SMPC26AN-M3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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