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Vishay General Semiconductor - Diodes Division SMPC22AN-M3/H
- Part No.:
- SMPC22AN-M3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- TO-277, 3-PowerDFN
- Datasheet:
-
SMPC22AN-M3/H.pdf
- Description:
- TVS DIODE 22VWM 35.5VC TO277A
- Quantity:
- Payment:
- Shipping:
Inventory:3,525
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Product details
Overview
SMPC22AN-M3/H 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), and 1500 W peak pulse power (PPPM) with 35.5 V clamping voltage at 42.3 A. It protects MOSFETs, ICs, and sensor signal lines against inductive switching transients in automotive and industrial electronics.
For engineers reviewing the SMPC22AN-M3/H datasheet, SMPC22AN-M3/H pinout, SMPC22AN-M3/H application, or SMPC22AN-M3/H equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification (via HM3 suffix variants), MSL Level 1 moisture sensitivity, and thermal resistance RθJA ≤ 100 °C/W on FR4 PCB - all critical for high-reliability board-level ESD and surge protection design.
Technical Context
This device operates as a silicon avalanche diode optimized for fast clamping of transient overvoltages using a low incremental surge resistance and sub-nanosecond response time. Its unidirectional configuration enables integration into DC-biased circuits where reverse conduction must be blocked until clamping threshold is exceeded.
The SMPC22AN-M3/H shares the eSMP® Series mechanical footprint and thermal performance profile with other SMPCxxAN devices, including identical 1.1 mm typical height, matte tin-plated leads compliant with J-STD-002, and JEDEC TO-277A outline dimensions. It is halogen-free, RoHS-compliant, and rated for TJ = -55 to +150 °C operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 22.0 V - maximum continuous reverse operating voltage before clamping initiates |
| VBR (min/max) | 24.4 V / 26.9 V - guaranteed avalanche breakdown range at 1.0 mA test current |
| VC @ IPPM | 35.5 V - clamped voltage across device at 42.3 A peak pulse current (10/1000 μs) |
| PPPM | 1500 W - peak pulse power handling capability under standardized surge waveform |
| RθJA | ≤ 100 °C/W - thermal resistance junction-to-ambient on standard FR4 PCB, defining safe power derating |
| Polarity | Unidirectional - cathode band denotes terminal requiring positive overvoltage relative to anode |
| MSL Level | Level 1 per J-STD-020 - no floor life limitation; compatible with standard reflow up to 260 °C peak |
Pinout & Package
Package: SMPC (TO-277A), 3-terminal surface-mount case with 1.1 mm typical height, UL 94 V-0 molding compound, and cathode band marking on terminal 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 (band side) | Cathode | Connected to protected line; conducts during overvoltage event when line voltage exceeds VBR relative to Terminal 2/3 |
| Terminal 2 | Anode | Common anode node tied to ground or reference potential in unidirectional TVS configuration |
| Terminal 3 | Anode | Electrically connected to Terminal 2 internally; provides dual-anode layout for improved current sharing and thermal distribution |
Key Features
| Feature | Design Value |
|---|---|
| Clamping performance | 35.5 V VC at 42.3 A ensures robust protection margin for 24 V systems without overstressing downstream ICs |
| Thermal robustness | RθJM ≤ 3 °C/W enables efficient heat transfer to heatsink when mounted with cathode on heatsink per datasheet recommendation |
| Automated assembly compatibility | MSL Level 1 rating and matte tin plating support standard SMT reflow without preconditioning or special handling |
| AEC-Q101 readiness | Base P/NHM3 variant qualified for automotive applications; SMPC22AN-M3/H is industrial-grade but shares identical die and package |
| Low-profile form factor | 1.1 mm height allows use in space-constrained modules such as motor control PCBs and sensor hubs |
Applications
| Automotive Power Distribution | Industrial Motor Drive Control |
|---|---|
Use Scenario: Protecting gate drivers and microcontrollers from load dump and inductive kickback in 24 V vehicle subsystems. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and ground to clamp transients before they reach sensitive logic inputs. Use Value: 35.5 V clamping voltage maintains safe margin below 40 V absolute maximum ratings of common automotive MCUs and gate drivers. |
Use Scenario: Safeguarding position encoder signal lines and Hall-effect sensor outputs in variable-frequency drives. IC Role / Device Role / Timing Role: Point-of-use transient suppression on differential analog sensor paths subject to EMI and switching noise. Use Value: Sub-ns response time prevents voltage overshoot from corrupting 10–100 kHz position feedback signals. |
| Telecom Power Supply Input | Consumer Appliance Mainboard |
Use Scenario: Front-end surge protection on AC/DC adapter input rails exposed to lightning-induced surges per IEC 61000-4-5. IC Role / Device Role / Timing Role: Primary clamping device absorbing 1500 W pulses before upstream fuses or secondary regulators. Use Value: 1500 W PPPM rating meets Level 4 (4 kV) surge immunity requirements with margin for repeated events. |
Use Scenario: ESD and transient protection on USB, I²C, and display interface lines in smart home controllers. IC Role / Device Role / Timing Role: Low-capacitance TVS (typ. < 100 pF) integrated directly at connector pins to minimize stub length. Use Value: 1.1 mm height enables co-placement with micro-B connectors and 0.5 mm pitch FPC headers without interference. |
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-E3/5T | DO-214AC (SMA) package; 22 V VWM; 35.5 V VC; 400 W PPPM (vs. 1500 W) | Limited to lower-energy transients; not suitable for automotive load dump or industrial motor drive spikes | Select when board space permits larger footprint and surge energy is ≤ 400 W |
| SMCJ22AHE3/57T | DO-214AB (SMC) package; 22 V VWM; 36.5 V VC; 1500 W PPPM; AEC-Q101 qualified | Same surge rating but 2.3 mm height vs. 1.1 mm - unsuitable for ultra-low-profile designs | Select when AEC-Q101 compliance is mandatory and height constraint is relaxed |
Compared with SMAJ22A-E3/5T and SMCJ22AHE3/57T, the SMPC22AN-M3/H delivers identical 22 V clamping performance in a 52 % lower profile package while maintaining full 1500 W surge capability - making it optimal for next-generation compact power electronics where vertical clearance and energy robustness are both critical.
Availability
SMPC22AN-M3/H is available at Aetrix Electronics and suitable for automotive power distribution, industrial motor drive control, telecom power supply input, and consumer appliance mainboard designs requiring stable component supply and long-term production continuity.
Supply support for SMPC22AN-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, and transient protection devices with emphasis on reliability, thermal performance, and automotive qualification.
The SMPCxxAN series was developed to address demand for ultra-low-profile, high-power TVS diodes in space-constrained automotive and industrial modules - delivering 1500 W surge capability in a 1.1 mm height package with AEC-Q101-ready variants.
FAQ
What is the clamping voltage of the SMPC22AN-M3/H under maximum surge conditions?
The SMPC22AN-M3/H has a maximum clamping voltage (VC) of 35.5 V at 42.3 A peak pulse current with a 10/1000 μs waveform. This value is measured per Figure 1 in Vishay document 89116 and defines the upper voltage limit imposed on protected circuitry during worst-case transient events. The SMPC22AN-M3/H maintains this clamping performance across its specified operating temperature range.
Is the SMPC22AN-M3/H AEC-Q101 qualified?
No, the SMPC22AN-M3/H is the industrial-grade version with halogen-free, RoHS-compliant construction. AEC-Q101 qualification applies only to variants with the HM3 suffix (e.g., SMPC22ANHM3/H). Both share identical die, package, and electrical specifications, but only HM3-marked units undergo the full automotive stress test sequence per AEC-Q101 Rev H.
What does the "H" in SMPC22AN-M3/H indicate?
The "H" is the preferred package code denoting 7-inch diameter plastic tape-and-reel packaging with 1500 units per reel. It is defined in the Ordering Information table of Vishay document 89116 and corresponds to JEDEC-standard carrier format for automated SMT placement. The SMPC22AN-M3/H uses the same SMPC (TO-277A) physical package regardless of reel code.
Can the SMPC22AN-M3/H be used in bidirectional configurations?
No, the SMPC22AN-M3/H is strictly unidirectional. Its internal structure features a single cathode and dual anodes, designed for clamping only when the cathode-side terminal is driven positive relative to the anode terminals. For bidirectional protection, two SMPC22AN-M3/H devices must be connected in series opposition - but Vishay offers dedicated bidirectional variants (e.g., SMPC22A) for that purpose.
What is the thermal resistance from junction to ambient for SMPC22AN-M3/H on standard PCB?
The maximum junction-to-ambient thermal resistance (RθJA) for SMPC22AN-M3/H is 100 °C/W when mounted on a standard FR4 PCB with 2 oz. copper and the recommended pad layout per Figure 5 in document 89116. This value assumes no external heatsink and defines the baseline for power derating above 25 °C ambient temperature - critical for sustained surge duty cycle planning in the SMPC22AN-M3/H application.
SMPC22AN-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):
- 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/H FAQ
1.How can I place an order for SMPC22AN-M3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMPC22AN-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 SMPC22AN-M3/H reliable?
The price and inventory of SMPC22AN-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 SMPC22AN-M3/H is usually 5 days.
3.What payment methods are accepted for SMPC22AN-M3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMPC22AN-M3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMPC22AN-M3/H?
SMPC22AN-M3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMPC22AN-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 SMPC22AN-M3/H?
For technical support, including SMPC22AN-M3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMPC22AN-M3/H requirements.
6.How does Aetrix verify that SMPC22AN-M3/H is sourced from the original manufacturer or authorized distributors?
All SMPC22AN-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 SMPC22AN-M3/H meets industry standards.
7.What is the process for return or replacement of SMPC22AN-M3/H?
All SMPC22AN-M3/H units undergo pre-shipment inspection (PSI). If there is an issue with SMPC22AN-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 SMPC22AN-M3/H part is unused and in its original packaging.
Return procedure for SMPC22AN-M3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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