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Vishay General Semiconductor - Diodes Division SMPC75ANHM3/H
- Part No.:
- SMPC75ANHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- TO-277, 3-PowerDFN
- Datasheet:
-
SMPC75ANHM3/H.pdf
- Description:
- TVS DIODE 75VWM 121VC TO277A
- Quantity:
- Payment:
- Shipping:
Inventory:4,680
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Product details
Overview
SMPC75ANHM3/H from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) in the SMPC (TO-277A) package, designed for high-energy surge protection of sensitive electronics. It features a 75.0 V stand-off voltage (VWM), 83.3–92.1 V breakdown voltage (VBR), 121 V maximum clamping voltage (VC) at 12.4 A peak pulse current (IPPM), and 1500 W peak pulse power (PPPM) with 10/1000 μs waveform - ideal for automotive sensor line protection against load dump and inductive switching transients.
For engineers reviewing the SMPC75ANHM3/H datasheet, SMPC75ANHM3/H pinout, SMPC75ANHM3/H application, or SMPC75ANHM3/H equivalent, this AEC-Q101 qualified TVS offers verified clamping performance, low-profile mounting (1.1 mm height), and halogen-free RoHS-compliant construction suitable for automated placement in harsh-environment automotive and industrial designs.
Technical Context
This device operates as a unidirectional avalanche diode, leveraging silicon p-n junction physics to clamp transient overvoltages above its VWM threshold while maintaining low leakage (<1.0 μA at 75.0 V). Its TO-277A package enables dual-anode/cathode terminal configuration for enhanced thermal dissipation when mounted with cathode on heatsink.
The SMPC75ANHM3/H delivers stable clamping under repetitive surge conditions up to TJ = 150 °C, with thermal resistance RθJM of 2.5–3.0 °C/W (junction-to-mount) and RθJA of 85–100 °C/W (junction-to-ambient on FR4, 2 oz copper). It meets MSL Level 1 per J-STD-020 and passes JESD201 Class 2 whisker testing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 75.0 V - Maximum continuous reverse operating voltage before clamping initiates; defines safe signal line operating margin. |
| VBR min/max | 83.3 V / 92.1 V at IT = 1.0 mA - Confirmed avalanche onset range; ensures predictable turn-on across production lot. |
| VC @ IPPM | 121 V at 12.4 A (10/1000 μs) - Measured clamping voltage limits downstream IC stress during worst-case surge events. |
| PPPM | 1500 W - Peak pulse power handling capacity determines survivability against ISO 7637-2 Pulse 5a/b or IEC 61000-4-5 surges. |
| TJ max | +150 °C - Maximum junction temperature rating enables operation in under-hood automotive environments. |
| Package | SMPC (TO-277A) - Surface-mount, low-profile (1.1 mm typical height), dual-anode/cathode configuration for thermal optimization. |
| AEC-Q101 | Qualified - Validated for automotive applications including engine control units, ADAS sensors, and body electronics. |
Pinout & Package
SMPC75ANHM3/H uses the SMPC (TO-277A) package: a 3-terminal surface-mount case with cathode band marking, matte tin-plated leads, and UL 94 V-0 molding compound. Height is 1.1 mm typical; footprint requires 0.268" × 0.186" (6.80 mm × 4.72 mm) PCB pad layout per JEDEC TO-277A standard.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode 1 / Anode 2 | Common anode terminals | Electrically tied internally; used jointly for low-inductance connection to ground plane or heatsink. |
| Cathode | Protected line input | Connected to signal/power line requiring transient suppression; polarity band denotes cathode end. |
Key Features
| Feature | Design Value |
|---|---|
| Unidirectional clamping | Enables precise protection of DC-biased lines (e.g., 12 V sensor supplies) without forward conduction during normal operation. |
| AEC-Q101 qualification | Validated reliability for automotive-grade deployment - including temperature cycling, humidity bias, and mechanical shock testing. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ISO 16750-2 load dump), improving system-level ESD/EFT immunity. |
| MSL Level 1 rating | Allows unlimited floor life and reflow at 260 °C peak - compatible with standard SMT assembly without dry-pack requirements. |
| Halogen-free & RoHS | Meets global environmental compliance mandates (IEC 61249-2-21) without compromising surge robustness or thermal performance. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) in engine control modules from load dump and alternator ripple. IC Role / Device Role / Timing Role: Primary transient shunt element placed directly at connector entry point to divert surge energy before reaching protected ICs. Use Value: Clamps 121 V at 12.4 A, limiting stress on downstream 3.3 V/5 V interface ICs and ensuring functional safety compliance per ISO 26262 ASIL-B pathways. |
Use Scenario: Safeguarding digital input channels of programmable logic controllers exposed to relay coil back-EMF and motor drive noise in factory automation systems. IC Role / Device Role / Timing Role: Standalone TVS deployed across 24 V DC input terminals to absorb repetitive 1 kV/500 A transients per IEC 61000-4-4. Use Value: 1500 W PPPM rating and 1.1 mm profile enable dense I/O module layouts while meeting IEC 61000-6-2 immunity requirements without derating. |
| Telecom Power Supply Clamp | Consumer Appliance Motor Control |
|
Use Scenario: Secondary-side overvoltage suppression on 48 V telecom power rails subjected to lightning-induced surges per IEC 61000-4-5. IC Role / Device Role / Timing Role: Fast-response clamping device placed after DC/DC converter output to protect PMICs and FPGAs from residual transients. Use Value: 121 V VC ensures <10% overvoltage margin for 48 V systems, while 10/1000 μs waveform capability matches telecom surge test standards. |
Use Scenario: Protecting microcontroller GPIOs and gate drivers in smart home appliances (e.g., washing machine motor inverters) from commutation spikes. IC Role / Device Role / Timing Role: Localized TVS at motor driver IC supply pins to suppress <100 ns rise-time spikes generated by MOSFET switching. Use Value: Sub-1.1 mm height allows placement adjacent to QFN-packaged drivers; 1.0 μA IR at 75 V prevents standby current leakage in battery-backed systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ75A-H | DO-214AC package; 75 V VWM; 1500 W PPPM; higher RθJA (140 °C/W); no AEC-Q101 qualification. | Limited to industrial/commercial use; unsuitable for under-hood automotive due to thermal and qualification gaps. | Select when cost sensitivity outweighs automotive qualification and board space permits larger footprint. |
| SMCJ75A-Q | SMC (DO-214AB) package; same 75 V VWM and 1500 W PPPM; AEC-Q101 qualified; 2.3 mm height vs. 1.1 mm. | Higher profile restricts use in ultra-thin modules; identical clamping but lower thermal efficiency in confined spaces. | Choose where existing SMC footprint exists and vertical clearance >2.3 mm is available. |
Compared with SMAJ75A-H and SMCJ75A-Q, the SMPC75ANHM3/H provides superior thermal performance (RθJM ≤3.0 °C/W), lowest profile (1.1 mm), and AEC-Q101 validation - making it optimal for space-constrained, high-reliability automotive electronics where junction temperature control and qualification traceability are critical.
Availability
SMPC75ANHM3/H is available at Aetrix Electronics and suitable for automotive sensor protection, industrial PLC I/O hardening, and telecom power rail clamping requiring stable component supply, long-term lifecycle support, and AEC-Q101 traceability.
Supply support for SMPC75ANHM3/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 high-reliability diodes, rectifiers, and protection devices for automotive, industrial, and computing markets.
The SMPC series was engineered specifically for AEC-Q101-compliant transient suppression in compact, thermally demanding automotive ECUs and ADAS sensor nodes - prioritizing low profile, high surge robustness, and process-controlled clamping consistency.
FAQ
What is the clamping voltage of SMPC75ANHM3/H at its rated peak pulse current?
The SMPC75ANHM3/H has a maximum clamping voltage (VC) of 121 V when subjected to its rated peak pulse current (IPPM) of 12.4 A using 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 surge events. The SMPC75ANHM3/H maintains this clamping performance across its full operating temperature range up to +150 °C junction temperature.
Is SMPC75ANHM3/H qualified for automotive applications?
Yes, SMPC75ANHM3/H is explicitly AEC-Q101 qualified, as confirmed in the "Ordering Information" and "Features" sections of Vishay Document 89116. The HM3 suffix denotes halogen-free, RoHS-compliant, and AEC-Q101-qualified construction. It is approved for use in automotive subsystems including engine control, body electronics, and ADAS sensor interfaces where reliability under thermal and mechanical stress is mandatory.
What does the "H" in SMPC75ANHM3/H signify?
The "H" in SMPC75ANHM3/H is the preferred package code indicating 7-inch diameter plastic tape and reel packaging with a base quantity of 1500 units. This is defined in the "Ordering Information" table on page 3 of Vishay Document 89116. It is distinct from the "I" code (13-inch reel, 6500 units) and does not affect electrical or thermal specifications of the SMPC75ANHM3/H device itself.
How does the SMPC75ANHM3/H package differ from standard SMA or SMB packages?
The SMPC75ANHM3/H uses the SMPC (TO-277A) package - a 3-terminal, low-profile (1.1 mm) surface-mount case with dual-anode terminals and a single cathode, optimized for thermal performance via heatsink mounting. Unlike 2-terminal SMA/SMB packages, SMPC's dual-anode configuration reduces effective thermal resistance (RθJM ≤3.0 °C/W) and supports higher surge repetition rates in confined automotive layouts.
What is the maximum reverse leakage current for SMPC75ANHM3/H at its stand-off voltage?
The SMPC75ANHM3/H exhibits a maximum reverse leakage current (IR) of 1.0 μA at its stand-off voltage (VWM) of 75.0 V, measured at TA = 25 °C per Vishay Document 89116. This low leakage ensures minimal power loss in always-on automotive circuits and prevents false triggering in high-impedance sensor signal paths, preserving accuracy and battery life in 12 V systems.
SMPC75ANHM3/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):
- 75V
- Voltage - Breakdown (Min):
- 83.3V
- Voltage - Clamping (Max) @ Ipp:
- 121V
- Current - Peak Pulse (10/1000µs):
- 12.4A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-277A (SMPC)
SMPC75ANHM3/H FAQ
1.How can I place an order for SMPC75ANHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMPC75ANHM3/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 SMPC75ANHM3/H reliable?
The price and inventory of SMPC75ANHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMPC75ANHM3/H is usually 5 days.
3.What payment methods are accepted for SMPC75ANHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMPC75ANHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMPC75ANHM3/H?
SMPC75ANHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMPC75ANHM3/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 SMPC75ANHM3/H?
For technical support, including SMPC75ANHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMPC75ANHM3/H requirements.
6.How does Aetrix verify that SMPC75ANHM3/H is sourced from the original manufacturer or authorized distributors?
All SMPC75ANHM3/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 SMPC75ANHM3/H meets industry standards.
7.What is the process for return or replacement of SMPC75ANHM3/H?
All SMPC75ANHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with SMPC75ANHM3/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 SMPC75ANHM3/H part is unused and in its original packaging.
Return procedure for SMPC75ANHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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