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Vishay General Semiconductor - Diodes Division SMPC26A-M3/86A
- Part No.:
- SMPC26A-M3/86A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- TO-277, 3-PowerDFN
- Datasheet:
-
SMPC26A-M3/86A.pdf
- Description:
- TVS DIODE 26VWM 42.1VC TO277A
- Quantity:
- Payment:
- Shipping:
Inventory:6,599
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Product details
Overview
SMPC26A-M3/86A from Vishay General Semiconductor is a unidirectional surface-mount TransZORB® transient voltage suppressor in SMPC (TO-277A) package, with 26.0 V stand-off voltage (VWM), 28.9–31.9 V breakdown voltage (VBR), and 1500 W peak pulse power (PPPM). It clamps transients to ≤42.1 V at 35.6 A, features 1.1 mm profile, and is rated for -55 °C to +150 °C operation - deployed for MOSFET gate and IC supply rail protection in automotive sensor modules.
For engineers reviewing the SMPC26A-M3/86A datasheet, SMPC26A-M3/86A pinout, SMPC26A-M3/86A application, or SMPC26A-M3/86A equivalent, key selection criteria include unidirectional polarity, 1.25 W steady-state power dissipation, MSL Level 1 reflow compatibility, AEC-Q101 qualification status (not applicable to this M3 suffix variant), and cathode-band orientation per JEDEC TO-277A mechanical drawing.
Technical Context
This device operates as a silicon avalanche diode optimized for transient suppression using a low-clamping, fast-response unidirectional architecture. Its 2.5 °C/W typical junction-to-mount thermal resistance enables effective heat transfer when mounted on copper heatsink pads, and its 85–100 °C/W junction-to-ambient rating assumes FR4 PCB with 2 oz. copper and standard footprint per JEDEC 51-2A.
The SMPC26A-M3/86A exhibits ≤1.0 μA reverse leakage at 26.0 V, responds within picoseconds to ESD and lightning-induced surges, and maintains stable clamping performance across -55 °C to +150 °C junction temperature range - validated under 10/1000 μs waveform per ANSI/IEEE C62.35.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 26.0 V - maximum continuous reverse operating voltage before conduction begins |
| VBR min/max | 28.9 V / 31.9 V at 1.0 mA - guaranteed avalanche onset range for reliable triggering |
| VC @ IPPM | ≤42.1 V at 35.6 A - clamped voltage during 10/1000 μs surge, defining protected circuit stress level |
| PPPM | 1500 W - peak transient power handling capability under standardized surge waveform |
| PD @ 25 °C | 1.25 W - maximum steady-state power dissipation on FR4 PCB with 2 oz. copper |
| TJ max | +150 °C - maximum junction temperature enabling use in under-hood automotive environments |
| Package | SMPC (TO-277A) - 3-terminal surface-mount outline with 0.173–0.189 inch body width and 1.1 mm height |
Pinout & Package
SMPC26A-M3/86A uses the SMPC (TO-277A) package: a 3-terminal, unidirectional SMD outline with cathode band marking. Terminals are matte tin-plated, solderable per J-STD-002 and JESD 22-B102, and meet JESD 201 Class 2 whisker test. The band denotes the cathode end; anode terminals are symmetric and electrically identical.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode 1 | Primary current entry path during reverse-biased transient | Electrically identical to Anode 2; dual-anode configuration lowers incremental surge resistance |
| Anode 2 | Parallel current entry path enhancing surge current sharing | Enables higher IPPM without increasing thermal density at single bond wire |
| Cathode (banded) | Common output node during clamping event | Connected to protected circuit ground or return path; polarity must match layout |
Key Features
| Feature | Design Value |
|---|---|
| Very low profile (1.1 mm height) | Enables placement beneath low-clearance shields and in space-constrained automotive ECUs |
| Unidirectional polarity | Protects DC-powered rails (e.g., 24 V sensor supplies) without forward-conduction interference |
| Low incremental surge resistance | Minimizes voltage overshoot during high-di/dt events via dual-anode parallel conduction |
| MSL Level 1 rating | Supports lead-free reflow up to 260 °C peak without preconditioning or dry-pack requirements |
| Halogen-free & RoHS-compliant | Fulfills automotive and industrial environmental compliance mandates without compromising surge robustness |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN transceiver power pins and analog sensor outputs in engine control units against load-dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Transient voltage suppressor placed between 12 V/24 V supply rail and local regulator input. Use Value: Clamps 1500 W surges to ≤42.1 V, preventing downstream LDO damage while maintaining <1.0 μA leakage at nominal 26 V rail. | Use Scenario: Safeguarding digital input channels of programmable logic controllers exposed to inductive switching noise from solenoids and contactors. IC Role / Device Role / Timing Role: Unidirectional TVS shunting transients on 24 V DC input lines before optocoupler isolation stage. Use Value: Dual-anode structure ensures consistent clamping under repetitive 35.6 A surges without parameter drift over 10⁵ events. |
| Consumer Power Adapter Output | Telecom Base Station Bias Rail |
Use Scenario: Securing secondary-side 5–24 V DC outputs of flyback adapters against ESD and line transients during plug insertion. IC Role / Device Role / Timing Role: Final-stage TVS on regulated output, positioned after bulk capacitor and before connector. Use Value: 1.1 mm height allows integration into ultra-thin adapter PCBs; MSL Level 1 supports automated assembly without moisture sensitivity concerns. | Use Scenario: Protecting RF power amplifier bias rails in 4G/5G base station remote radio heads subjected to lightning-induced surges. IC Role / Device Role / Timing Role: Standoff-rated TVS on +28 V bias line feeding GaN HEMT drivers. Use Value: 150 °C max junction temperature rating ensures reliability in sealed, thermally isolated enclosures with ambient up to 85 °C. |
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; 400 W PPPM; 1.5 mm height | Lower surge rating and taller profile limit use in high-density automotive modules | Select when board space permits larger footprint and 400 W surge capacity suffices |
| SMCJ26A | DO-214AB package; 26 V VWM; 1500 W PPPM; 2.6 mm height | Same surge rating but 1.5 mm taller - incompatible with 1.1 mm height constraints | Choose only if thermal margin allows greater junction-to-ambient resistance (RθJA = 15 °C/W vs. 85–100 °C/W) |
Compared with SMAJ26A-E3/5A and SMCJ26A, the SMPC26A-M3/86A delivers identical 26 V standoff and 1500 W surge rating in a 1.1 mm profile with dual-anode low-resistance conduction - making it uniquely suitable for next-generation compact automotive and industrial modules where height and surge robustness are co-constrained.
Availability
SMPC26A-M3/86A is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O protection, and telecom bias rail hardening requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for SMPC26A-M3/86A 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 transient protection devices with emphasis on automotive-grade reliability and AEC-Q101 validation.
The SMPC series was developed specifically for high-surge, low-profile transient suppression in automotive and industrial control systems - prioritizing dual-anode architecture, JEDEC TO-277A compatibility, and MSL Level 1 reflow readiness.
FAQ
What is the polarity configuration of SMPC26A-M3/86A?
The SMPC26A-M3/86A is a unidirectional transient voltage suppressor. Its cathode is marked by a band on the package body, with two symmetric anode terminals. This configuration allows it to protect DC circuits where reverse voltage blocking is required, such as 24 V supply rails in automotive sensors. The dual-anode design reduces incremental surge resistance compared to single-anode equivalents.
Does SMPC26A-M3/86A meet AEC-Q101 qualification?
No, SMPC26A-M3/86A does not meet AEC-Q101 qualification. The AEC-Q101 qualified version carries the HM3 suffix (e.g., SMPC26ANHM3/86A). The "M3" suffix indicates halogen-free, RoHS-compliant, industrial-grade construction per Vishay's material categorization. For automotive applications requiring AEC-Q101, SMPC26ANHM3/86A is the designated qualified variant.
What is the meaning of the /86A package code in SMPC26A-M3/86A?
The /86A suffix specifies the packaging format: 7-inch diameter plastic tape and reel, with 1500 units per reel. This is the standard delivery mode for SMPC5.0A-M3 through SMPC36A-M3 variants. The /86A code also denotes compliance with Vishay's mechanical specification for SMPC (TO-277A) devices, including terminal plating and moisture sensitivity level (MSL Level 1).
How does the dual-anode structure of SMPC26A-M3/86A improve surge performance?
The dual-anode structure in SMPC26A-M3/86A provides parallel current paths during transient events, reducing effective incremental surge resistance and distributing thermal stress across two bond wires. This results in more stable clamping voltage (≤42.1 V at 35.6 A) and improved reliability under repetitive surges - a key advantage over single-anode TVS diodes like SMAJ26A-E3/5A when protecting sensitive MOSFET gates or precision regulators.
What is the maximum allowable mounting pad size for SMPC26A-M3/86A per JEDEC TO-277A?
Per the JEDEC TO-277A outline in the Vishay datasheet, the recommended mounting pad layout for SMPC26A-M3/86A has a minimum pad width of 0.173 inch (4.40 mm), minimum pad length of 0.250 inch (6.35 mm), and center-to-center terminal spacing of 0.189 inch (4.80 mm). Thermal pad extensions beyond these dimensions improve RθJM but must maintain solder mask definition to prevent bridging.
SMPC26A-M3/86A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- TO-277, 3-PowerDFN
- Series:
- TransZorb®, eSMP®
- 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)
SMPC26A-M3/86A FAQ
1.How can I place an order for SMPC26A-M3/86A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMPC26A-M3/86A 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 SMPC26A-M3/86A reliable?
The price and inventory of SMPC26A-M3/86A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMPC26A-M3/86A is usually 5 days.
3.What payment methods are accepted for SMPC26A-M3/86A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMPC26A-M3/86A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMPC26A-M3/86A?
SMPC26A-M3/86A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMPC26A-M3/86A 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 SMPC26A-M3/86A?
For technical support, including SMPC26A-M3/86A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMPC26A-M3/86A requirements.
6.How does Aetrix verify that SMPC26A-M3/86A is sourced from the original manufacturer or authorized distributors?
All SMPC26A-M3/86A 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 SMPC26A-M3/86A meets industry standards.
7.What is the process for return or replacement of SMPC26A-M3/86A?
All SMPC26A-M3/86A units undergo pre-shipment inspection (PSI). If there is an issue with SMPC26A-M3/86A, 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 SMPC26A-M3/86A part is unused and in its original packaging.
Return procedure for SMPC26A-M3/86A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMPC26A-M3/86A Tags
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