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Vishay General Semiconductor - Diodes Division SMPC24AN-M3/H
- Part No.:
- SMPC24AN-M3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- TO-277, 3-PowerDFN
- Datasheet:
-
SMPC24AN-M3/H.pdf
- Description:
- TVS DIODE 24VWM 38.9VC TO277A
- Quantity:
- Payment:
- Shipping:
Inventory:756
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Product details
Overview
SMPC24AN-M3/H from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) in the SMPC (TO-277A) package, designed for clamping inductive-switching transients on 24 V DC power rails and signal lines. It features a 24.0 V stand-off voltage (VWM), 26.7–29.5 V breakdown voltage (VBR), 38.6 A peak pulse current (IPPM), 38.9 V maximum clamping voltage (VC), and 1500 W peak pulse power (PPPM) with 10/1000 μs waveform.
For engineers reviewing the SMPC24AN-M3/H datasheet, SMPC24AN-M3/H pinout, SMPC24AN-M3/H application, or SMPC24AN-M3/H equivalent, this device is selected for robust overvoltage protection in automotive sensor interfaces, industrial I/O modules, and telecom power supply inputs where low-profile mounting, AEC-Q101 qualification, and high surge immunity are required.
Technical Context
This TVS diode operates as a unidirectional clamping device, activated when reverse voltage exceeds its VBR threshold. Its low incremental surge resistance and fast response time ensure effective suppression of transient energy before downstream ICs or MOSFETs are damaged.
The SMPC24AN-M3/H uses a dual-anode/single-cathode configuration (anode terminals 1 & 2, cathode terminal K) in the SMPC (TO-277A) package, enabling symmetrical thermal dissipation and optimized PCB layout for high-current surge paths. It meets JESD201 Class 2 whisker resistance and MSL Level 1 reflow compatibility up to 260 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 24.0 V - Maximum continuous reverse operating voltage without conduction; defines safe DC rail margin before clamping onset. |
| VBR min/max | 26.7 V / 29.5 V at 1.0 mA - Confirmed breakdown range ensures reliable turn-on across process variation and temperature. |
| VC @ IPPM | 38.9 V - Clamping voltage at 38.6 A peak pulse; determines maximum stress imposed on protected circuitry during surge. |
| PPPM | 1500 W - Peak pulse power handling with 10/1000 μs waveform; supports high-energy transients common in automotive load-dump events. |
| TJ max | +150 °C - Maximum junction temperature; enables operation in under-hood or industrial enclosures without derating. |
| Package | SMPC (TO-277A) - Surface-mount, 3-terminal, low-profile (1.1 mm typical height) package with matte tin leads, RoHS-compliant and halogen-free. |
| AEC-Q101 | Qualified - Validated for automotive applications per stress test requirements including HTOL, TCT, and ESD HBM/MM. |
Pinout & Package
SMPC24AN-M3/H uses the SMPC (TO-277A) package: a 3-terminal surface-mount outline conforming to JEDEC TO-277A, with 1.1 mm typical height, UL 94 V-0 molding compound, and cathode band marking on the top surface. Terminals are matte tin-plated and solderable per J-STD-002/JESD22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode 1 | Primary anode connection | Connected to protected line (e.g., 24 V rail); forms one half of dual-anode structure for balanced current sharing. |
| Anode 2 | Secondary anode connection | Electrically tied to Anode 1 internally; provides redundant bond wire path and improved thermal spreading in high-surge layouts. |
| Cathode (K) | Clamping output node | Connected to ground or low-impedance return path; carries full IPPM current during transient event with minimal voltage overshoot. |
Key Features
| Feature | Design Value |
|---|---|
| Unidirectional clamping | Enables integration into DC-biased circuits (e.g., 24 V sensor supplies) without forward-conduction interference. |
| Low profile (1.1 mm height) | Supports automated placement and compact board stacking in space-constrained automotive ECUs and industrial controllers. |
| AEC-Q101 qualified | Validated for automotive-grade reliability-required for engine control, ADAS sensors, and body electronics. |
| 1500 W PPPM rating | Withstands ISO 7637-2 Pulse 5a (load dump) and IEC 61000-4-5 surge events without degradation. |
| MSL Level 1, 260 °C peak | Compatible with standard lead-free reflow profiles without pre-baking or special handling. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Module |
|---|---|
Use Scenario: Protecting CAN/LIN transceivers and analog sensor front-ends (e.g., pressure, temperature) from battery line transients in vehicle chassis networks. IC Role / Device Role / Timing Role: Unidirectional TVS placed between 24 V supply rail and ground, clamping load-dump spikes before they reach LDOs or signal conditioners. Use Value: Limits voltage seen by downstream ICs to ≤38.9 V during 38.6 A surges, preventing latch-up or gate oxide damage in 3.3 V/5 V logic. |
Use Scenario: Safeguarding digital input channels on programmable logic controller (PLC) modules exposed to field wiring in factory automation environments. IC Role / Device Role / Timing Role: Mounted directly at terminal block entry point to absorb inductive kickback from solenoid/relay coils and lightning-induced surges on long cable runs. Use Value: Delivers 1500 W surge immunity with <1 ns response, ensuring system uptime and eliminating false triggering due to transient-induced logic errors. |
| Telecom Power Input | Motor Drive Gate Driver Protection |
Use Scenario: Securing 24 V auxiliary power inputs in base station remote radio units (RRUs) and optical line terminals (OLTs) against AC/DC adapter faults and EFT bursts. IC Role / Device Role / Timing Role: Placed upstream of DC/DC converters to prevent overvoltage propagation into isolated power stages and communication ICs. Use Value: Maintains VWM = 24.0 V with <1 μA leakage, minimizing standby power loss while providing guaranteed clamping at 38.9 V. |
Use Scenario: Shielding high-side and low-side gate drivers in BLDC motor inverters from Miller-induced voltage spikes during switching transitions. IC Role / Device Role / Timing Role: Connected between gate driver supply (e.g., 15 V bootstrap rail) and ground to clamp ringing above VBR before it couples into gate oxide. Use Value: Dual-anode configuration lowers effective dynamic impedance, reducing clamping overshoot and improving MOSFET reliability under repetitive 10/1000 μs surges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ24A-E3/57T | DO-214AC (SMA) package; 24 V VWM; 38.9 V VC; 400 W PPPM (vs. 1500 W) | Limited to lower-energy transients; not AEC-Q101 qualified; smaller footprint but higher thermal resistance. | Select when cost or board area is critical and surge energy remains below 400 W. |
| SMCJ24A-M3/86A | SMC (DO-214AB) package; same 24 V VWM and 38.9 V VC; 1500 W PPPM; AEC-Q101 qualified; larger 7.11 × 6.22 mm footprint. | Better thermal mass for sustained surge duty cycles; less suitable for ultra-thin modules due to 2.6 mm height. | Select when higher thermal inertia is needed for repeated surge exposure or when existing SMC footprints are standardized. |
Compared with SMAJ24A-E3/57T and SMCJ24A-M3/86A, SMPC24AN-M3/H delivers identical clamping performance in a lower-profile, AEC-Q101-qualified package optimized for automated assembly and space-constrained automotive/industrial designs-without sacrificing 1500 W surge capability.
Availability
SMPC24AN-M3/H is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and telecom power inputs requiring stable component supply, AEC-Q101 compliance, and high-reliability transient suppression.
Supply support for SMPC24AN-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 MOSFETs for high-reliability industrial and automotive applications.
The SMPC series was developed to deliver high-power transient suppression in ultra-low-profile surface-mount packages for next-generation automotive ECUs and compact industrial controllers where thermal and spatial constraints limit traditional TVS solutions.
FAQ
What is the clamping voltage of SMPC24AN-M3/H at its rated peak pulse current?
The SMPC24AN-M3/H has a maximum clamping voltage (VC) of 38.9 V when subjected to its rated 38.6 A peak pulse current (IPPM) 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 surge events.
Is SMPC24AN-M3/H qualified for automotive applications?
Yes, SMPC24AN-M3/H is AEC-Q101 qualified, as confirmed in the Vishay datasheet (document 89116, revision 17-Sep-2021). The "AN" suffix denotes AEC-Q101 qualification, and the "HM3" ordering variant (e.g., SMPC24ANHM3/H) explicitly references this qualification-though the M3/H variant shares the same die and qualification status.
What does the "H" suffix mean in SMPC24AN-M3/H?
The "H" in SMPC24AN-M3/H is the preferred package code indicating 7-inch diameter plastic tape-and-reel delivery with 1500 units per reel. It is defined in the Ordering Information table on page 3 of Vishay document 89116 and corresponds to JEDEC-standardized packaging for automated SMT placement.
How does the dual-anode configuration of SMPC24AN-M3/H improve performance?
The dual-anode (Anode 1 + Anode 2) configuration in SMPC24AN-M3/H reduces effective dynamic impedance during surge events by distributing current across two parallel internal paths. This lowers clamping overshoot and improves thermal spreading-critical for maintaining reliability under repetitive 1500 W transients in automotive and industrial environments.
Can SMPC24AN-M3/H replace SMAJ24A in an existing design?
No direct replacement: SMPC24AN-M3/H uses the SMPC (TO-277A) package (3.70 × 3.40 mm), while SMAJ24A uses DO-214AC (4.32 × 2.62 mm) with different pinout and thermal characteristics. PCB layout change is required. Electrical parameters (VWM, VC, PPPM) differ significantly-SMPC24AN-M3/H offers 1500 W vs. SMAJ24A's 400 W-and only SMPC24AN-M3/H is AEC-Q101 qualified.
SMPC24AN-M3/H 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):
- 24V
- Voltage - Breakdown (Min):
- 26.7V
- Voltage - Clamping (Max) @ Ipp:
- 38.9V
- Current - Peak Pulse (10/1000µs):
- 38.6A
- 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)
SMPC24AN-M3/H FAQ
1.How can I place an order for SMPC24AN-M3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMPC24AN-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 SMPC24AN-M3/H reliable?
The price and inventory of SMPC24AN-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 SMPC24AN-M3/H is usually 5 days.
3.What payment methods are accepted for SMPC24AN-M3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMPC24AN-M3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMPC24AN-M3/H?
SMPC24AN-M3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMPC24AN-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 SMPC24AN-M3/H?
For technical support, including SMPC24AN-M3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMPC24AN-M3/H requirements.
6.How does Aetrix verify that SMPC24AN-M3/H is sourced from the original manufacturer or authorized distributors?
All SMPC24AN-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 SMPC24AN-M3/H meets industry standards.
7.What is the process for return or replacement of SMPC24AN-M3/H?
All SMPC24AN-M3/H units undergo pre-shipment inspection (PSI). If there is an issue with SMPC24AN-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 SMPC24AN-M3/H part is unused and in its original packaging.
Return procedure for SMPC24AN-M3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMPC24AN-M3/H Tags
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