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Vishay General Semiconductor - Diodes Division SMPC22AN-M3/I
- Part No.:
- SMPC22AN-M3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- TO-277, 3-PowerDFN
- Datasheet:
-
SMPC22AN-M3/I.pdf
- Description:
- TVS DIODE 22VWM 35.5VC TO277A
- Quantity:
- Payment:
- Shipping:
Inventory:6,518
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Product details
Overview
SMPC22AN-M3/I from Vishay General Semiconductor is a unidirectional surface-mount TransZORB® transient voltage suppressor in the SMPC (TO-277A) package, rated for 22 V stand-off voltage (VWM), 24.4–26.9 V breakdown voltage (VBR), 1500 W peak pulse power (PPPM), and 42.3 A peak pulse current (IPPM). It protects MOSFETs, ICs, and sensor signal lines against inductive switching transients in automotive and industrial electronics.
For engineers reviewing the SMPC22AN-M3/I datasheet, SMPC22AN-M3/I pinout, SMPC22AN-M3/I application, or SMPC22AN-M3/I equivalent, this device delivers low-profile TVS protection with AEC-Q101 qualification, MSL Level 1 reflow compatibility, and halogen-free RoHS-compliant construction - critical for high-reliability board-level surge suppression in space-constrained designs.
Technical Context
The SMPC22AN-M3/I operates as a unidirectional avalanche diode, clamping transients above its breakdown threshold while maintaining ≤1 μA reverse leakage at 22 V. Its 1.1 mm typical height and TO-277A footprint enable automated placement on dense PCBs without thermal derating penalties beyond 25 °C ambient.
Designed for 10/1000 μs surge waveforms, it achieves 35.5 V maximum clamping voltage at 42.3 A IPPM and exhibits 85–100 °C/W junction-to-ambient thermal resistance on standard FR4 with 2 oz copper - enabling robust transient energy dissipation without heatsinking in most applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 22 V - maximum continuous reverse operating voltage before conduction begins |
| VBR min/max | 24.4 V / 26.9 V - guaranteed avalanche onset range at 1 mA test current |
| VC @ IPPM | 35.5 V - clamped voltage during 42.3 A 10/1000 μs surge, limiting downstream stress |
| PPPM | 1500 W - peak transient power handling capability per JEDEC standard waveform |
| IR @ VWM | ≤1.0 μA - minimal leakage ensures no signal integrity impact in standby |
| TJ max | +150 °C - extended junction temperature rating supports under-hood automotive use |
| MSL Level | Level 1 - supports lead-free reflow up to 260 °C peak without preconditioning |
Pinout & Package
Package: SMPC (TO-277A), 3-terminal surface-mount case with cathode band marking; 1.1 mm typical height, 3.70 × 4.80 mm outline; matte tin-plated leads compliant with J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode 1 & Anode 2 | Common anode connection | Internally tied anodes allow dual-path surge current routing to shared cathode |
| Cathode | Transient return path | Banded terminal; connects to ground or low-impedance return plane for effective clamping |
Key Features
| Feature | Design Value |
|---|---|
| Very low profile | 1.1 mm typical height enables use in ultra-thin consumer and automotive modules |
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling and humidity testing |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ISO 7637-2 pulses) |
| Halogen-free & RoHS-compliant | M3 suffix confirms compliance with environmental regulations and solderability standards |
| Fast response time | Sub-nanosecond turn-on ensures clamping before sensitive ICs experience overvoltage damage |
Applications
| Automotive Power Window Control | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Suppresses inductive kickback from DC motor commutation during window lift/drop cycles. IC Role / Device Role / Timing Role: Unidirectional TVS placed across motor terminals to clamp flyback voltage spikes. Use Value: Prevents latch-up or gate oxide damage in H-bridge MOSFET drivers by limiting transient voltage to ≤35.5 V. | Use Scenario: Protects 24 V digital input channels from field-wiring surges and ESD events. IC Role / Device Role / Timing Role: Standoff-rated TVS on signal line between connector and optocoupler input. Use Value: Maintains 22 V system compatibility while absorbing 1500 W surges without degradation over 10⁵ events. |
| Automotive Cabin Sensor Interface | Telecom Base Station Power Supply |
Use Scenario: Shields LIN bus transceivers and Hall-effect sensors from battery dump energy. IC Role / Device Role / Timing Role: Unidirectional clamping device on VCC rail upstream of LDO regulator. Use Value: Ensures uninterrupted operation during load-dump transients (ISO 16750-2) with <1 μA leakage at 22 V. | Use Scenario: Guards 48 V intermediate bus against lightning-induced surges on outdoor telecom equipment. IC Role / Device Role / Timing Role: Primary surge protector on DC input stage before DC/DC converter. Use Value: Handles repeated 10/1000 μs surges up to 1500 W without parameter shift, validated per AEC-Q101 stress profiles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ22A-M3/86A | Same VWM (22 V), lower PPPM (400 W), SMA package (higher RθJA) | Limited to lower-energy transients; not AEC-Q101 qualified | Select when cost or legacy footprint prioritized over automotive reliability or high-power surge margin |
| SMCJ22A-M3/57T | Same VWM (22 V), higher PPPM (1500 W), SMC package (larger footprint, 2.3 mm height) | Requires more PCB area; suitable where thermal mass improves long-pulse handling | Select when board layout allows larger package and enhanced thermal inertia is beneficial for repetitive surges |
Compared with SMAJ22A-M3/86A and SMCJ22A-M3/57T, the SMPC22AN-M3/I provides identical 22 V standoff and 1500 W surge rating in a lower-profile, AEC-Q101-qualified package - delivering superior space efficiency and automotive compliance without sacrificing clamping performance.
Availability
SMPC22AN-M3/I is available at Aetrix Electronics and suitable for automotive powertrain subsystems, industrial programmable logic controllers, and telecom infrastructure requiring stable component supply with full traceability and lifecycle management.
Supply support for SMPC22AN-M3/I 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 and application-specific optimization.
The SMPC series was developed to deliver high-power transient suppression in ultra-low-profile surface-mount packages for automotive and industrial systems where board space and thermal constraints limit traditional TVS solutions.
FAQ
What is the clamping voltage of the SMPC22AN-M3/I at its rated peak pulse current?
The SMPC22AN-M3/I has a maximum clamping voltage (VC) of 35.5 V when subjected to its rated 42.3 A peak pulse current (IPPM) under the standard 10/1000 μs waveform. This value is measured with cathode mounted on heatsink per datasheet test conditions and ensures downstream components remain within safe voltage limits during surge events.
Is the SMPC22AN-M3/I qualified for automotive applications?
Yes, the SMPC22AN-M3/I is AEC-Q101 qualified, as confirmed by Vishay's documentation for the SMPC22AN through SMPC85AN family. This qualification covers stress tests including temperature cycling, humidity bias, and mechanical shock - making SMPC22AN-M3/I suitable for under-hood and cabin electronics where reliability is mission-critical.
What does the "I" suffix in SMPC22AN-M3/I indicate?
The "I" suffix in SMPC22AN-M3/I specifies the preferred packaging configuration: 13-inch diameter plastic tape and reel, with a base quantity of 6500 units. This differs from the "H" suffix (7-inch reel, 1500 units) and ensures compatibility with high-volume SMT assembly lines requiring extended reel lengths.
How does the SMPC22AN-M3/I differ from the non-"N" variant SMPC22A?
The SMPC22AN-M3/I is the AEC-Q101 qualified version, whereas SMPC22A is the industrial-grade variant. Both share identical electrical specs (VWM = 22 V, VBR = 24.4–26.9 V, PPPM = 1500 W), but only SMPC22AN variants undergo automotive qualification testing and carry the HM3 ordering code option for full AEC compliance.
What is the thermal resistance of the SMPC22AN-M3/I on a standard FR4 PCB?
The SMPC22AN-M3/I has a typical junction-to-ambient thermal resistance (RθJA) of 85 °C/W and a maximum of 100 °C/W when mounted on FR4 PCB with 2 oz copper and the standard footprint defined in Vishay document 89116. This enables reliable operation up to +150 °C junction temperature under specified power dissipation limits.
SMPC22AN-M3/I 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):
- 22V
- Voltage - Breakdown (Min):
- 24.4V
- Voltage - Clamping (Max) @ Ipp:
- 35.5V
- Current - Peak Pulse (10/1000µs):
- 42.3A
- 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)
SMPC22AN-M3/I FAQ
1.How can I place an order for SMPC22AN-M3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMPC22AN-M3/I 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 SMPC22AN-M3/I reliable?
The price and inventory of SMPC22AN-M3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMPC22AN-M3/I is usually 5 days.
3.What payment methods are accepted for SMPC22AN-M3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMPC22AN-M3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMPC22AN-M3/I?
SMPC22AN-M3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMPC22AN-M3/I 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 SMPC22AN-M3/I?
For technical support, including SMPC22AN-M3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMPC22AN-M3/I requirements.
6.How does Aetrix verify that SMPC22AN-M3/I is sourced from the original manufacturer or authorized distributors?
All SMPC22AN-M3/I 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 SMPC22AN-M3/I meets industry standards.
7.What is the process for return or replacement of SMPC22AN-M3/I?
All SMPC22AN-M3/I units undergo pre-shipment inspection (PSI). If there is an issue with SMPC22AN-M3/I, 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 SMPC22AN-M3/I part is unused and in its original packaging.
Return procedure for SMPC22AN-M3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMPC22AN-M3/I Tags
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