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Vishay General Semiconductor - Diodes Division MSMP12A-M3/89A
- Part No.:
- MSMP12A-M3/89A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-219AD
- Datasheet:
-
MSMP12A-M3/89A.pdf
- Description:
- TVS DIODE 12VWM 19.9VC MICROSMP
- Quantity:
- Payment:
- Shipping:
Inventory:8,405
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Product details
Overview
MSMP12A-M3/89A from Vishay General Semiconductor is a unidirectional surface-mount TRANSZORB® transient voltage suppressor in MicroSMP (DO-219AD) package, with 12 V stand-off voltage (VWM), 13.3–14.7 V breakdown voltage (VBR), 150 W peak pulse power (10/1000 μs), and AEC-Q101 qualification. It protects automotive sensor signal lines and MOSFET gate drivers against ESD and inductive switching transients.
For engineers reviewing the MSMP12A-M3/89A datasheet, MSMP12A-M3/89A pinout, MSMP12A-M3/89A application, or MSMP12A-M3/89A equivalent, key selection criteria include clamping voltage at 7.5 A (19.9 V max), junction-to-mount thermal resistance (30 °C/W), unidirectional polarity, MSL Level 1 rating, and halogen-free RoHS-compliant construction.
Technical Context
This device operates as a silicon avalanche diode designed for fast-response overvoltage clamping. Its oxide planar chip junction enables stable breakdown characteristics and low leakage (<1 μA at 12 V), while the MicroSMP package supports automated placement and meets JESD201 Class 2 whisker resistance.
The MSMP12A-M3/89A delivers 150 W peak pulse power under standardized 10/1000 μs waveform conditions, with maximum clamping voltage of 19.9 V at 7.5 A IPPM and dynamic resistance of 0.69 Ω - critical for limiting voltage overshoot during transient events in automotive ECUs and industrial I/O modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 12 V - maximum reverse stand-off voltage before conduction begins; defines operating margin below clamping threshold |
| VBR min/max | 13.3 V / 14.7 V at 1 mA - ensures predictable avalanche onset across production lot |
| VC max @ IPPM | 19.9 V at 7.5 A - limits worst-case voltage seen by protected IC during 10/1000 μs surge |
| PPPM | 150 W (10/1000 μs) - sustains high-energy transients without failure in automotive load-dump scenarios |
| ESD rating | 15 kV air / 8 kV contact - exceeds IEC 61000-4-2 Level 4 for robust system-level ESD immunity |
| TJ max | +150 °C - supports operation in under-hood automotive environments and industrial enclosures |
| Package | MicroSMP (DO-219AD) - 2.30 mm × 1.10 mm footprint with 0.65 mm profile for space-constrained PCB layouts |
Pinout & Package
MicroSMP (DO-219AD) package: surface-mount, two-terminal, unidirectional configuration with cathode indicated by color band. Dimensions: 2.30 mm × 1.10 mm × 0.65 mm (L × W × H); terminal pitch: 1.50 mm; matte tin-plated leads compliant with J-STD-002 solderability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry during forward bias; connected to ground or low-side reference | Provides return path for clamped transient current; must be routed to low-impedance ground plane |
| Cathode | Current exit during reverse avalanche; connected to protected line | Connected directly to signal/power line being protected; color band identifies this terminal |
Key Features
| Feature | Design Value |
|---|---|
| Very low profile (0.65 mm height) | Enables use in ultra-thin modules such as ADAS camera housings and compact motor control boards |
| AEC-Q101 qualified | Validated for automotive applications including engine control, body electronics, and infotainment interfaces |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without moisture sensitivity concerns |
| Oxide planar chip junction | Delivers tight VBR tolerance (±5%) and stable leakage performance over temperature and lifetime |
| Halogen-free, RoHS-compliant | Meets EU Directive 2011/65/EU and automotive material compliance requirements (e.g., GMW3172) |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load dump and ESD in vehicle subsystems. IC Role / Device Role / Timing Role: Unidirectional TVS placed between signal line and ground, clamping transients within nanoseconds. Use Value: Limits voltage to ≤19.9 V during 7.5 A surges, preventing latch-up or damage to 12 V-rated interface ICs. | Use Scenario: Safeguarding PLC digital input channels exposed to field wiring transients in factory automation systems. IC Role / Device Role / Timing Role: Standoff protection element on 24 V DC input lines, absorbing repetitive switching spikes from solenoid valves. Use Value: Withstands 150 W pulses and maintains <1 μA leakage at 12 V, ensuring no false triggering during normal operation. |
| MOSFET Gate Driver Protection | Consumer Power Adapter Input Stage |
Use Scenario: Shielding high-side N-channel MOSFET gates from Miller-induced voltage spikes in half-bridge motor drivers. IC Role / Device Role / Timing Role: Fast-clamping TVS between gate and source, activated before gate oxide breakdown occurs. Use Value: 0.69 Ω dynamic resistance ensures rapid voltage suppression, reducing risk of gate rupture during fast dv/dt events. | Use Scenario: Secondary-side transient suppression on 12 V output rails of wall-mounted AC/DC adapters used in smart home devices. IC Role / Device Role / Timing Role: Output-line protector responding to capacitive coupling or secondary-side surge events. Use Value: AEC-Q101 qualification and 15 kV air discharge rating provide reliability beyond consumer-grade requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ12A | DO-214AC package (larger: 4.5 mm × 2.7 mm); 12 V VWM; 150 W PPPM; same clamping voltage (20.1 V) | Less suitable for ultra-dense layouts; higher thermal resistance (RθJA = 50 °C/W vs. 250 °C/W for MSMP12A-M3/89A) | Select when board space allows larger footprint and legacy SMA tooling is in place. |
| SMF12A | SOD-123FL package (2.7 mm × 1.7 mm); 12 V VWM; 200 W PPPM; lower clamping (19.0 V); not AEC-Q101 qualified | Lacks automotive qualification; higher peak power but less robust ESD immunity (12 kV air) | Prefer for cost-sensitive industrial designs where AEC-Q101 is not mandated. |
Compared with SMAJ12A and SMF12A, the MSMP12A-M3/89A offers the smallest footprint and automotive qualification in a single package, making it optimal for next-generation ADAS modules and space-constrained ECU designs requiring validated reliability.
Availability
MSMP12A-M3/89A is available at Aetrix Electronics and suitable for automotive sensor protection, industrial I/O interface hardening, and MOSFET gate driver safeguarding requiring stable component supply and full traceability.
Supply support for MSMP12A-M3/89A 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, miniaturization, and automotive-grade performance.
The MSMP series is part of Vishay's eSMP® family, engineered specifically for high-density, high-reliability transient suppression in automotive and industrial applications where low profile and AEC-Q101 compliance are mandatory.
FAQ
What is the maximum clamping voltage of the MSMP12A-M3/89A at its rated peak pulse current?
The MSMP12A-M3/89A has a maximum clamping voltage (VC) of 19.9 V at 7.5 A peak pulse current (IPPM) under 10/1000 μs waveform conditions. This value is measured per JEDEC standards and reflects worst-case voltage seen by downstream circuitry during surge events. The MSMP12A-M3/89A achieves this with a dynamic resistance of 0.69 Ω, ensuring consistent clamping behavior across temperature and lifetime.
Is the MSMP12A-M3/89A suitable for automotive applications?
Yes, the MSMP12A-M3/89A is AEC-Q101 qualified and rated for operation from −55 °C to +150 °C, making it suitable for under-hood and cabin automotive applications. Its MSL Level 1 rating, halogen-free composition, and 15 kV air/8 kV contact ESD immunity align with automotive electronics requirements. The MSMP12A-M3/89A is commonly deployed in engine control units, body control modules, and ADAS sensor interfaces.
What does the "M3/89A" suffix indicate in MSMP12A-M3/89A?
The "M3" suffix denotes halogen-free, RoHS-compliant, commercial-grade construction with JESD201 Class 2 whisker resistance. The "89A" refers to the preferred package code for 7-inch plastic tape-and-reel delivery containing 4500 units. This ordering code ensures correct packaging format and material compliance for automated SMT assembly. The MSMP12A-M3/89A uses the MicroSMP (DO-219AD) case outline.
How does the thermal performance of MSMP12A-M3/89A compare to larger-package TVS diodes?
The MSMP12A-M3/89A has a junction-to-mount thermal resistance (RθJM) of 30 °C/W when mounted on 6.0 mm × 6.0 mm copper pads - significantly lower than typical RθJA values (250 °C/W). This enables efficient heat transfer to the PCB, supporting sustained power dissipation up to 1.0 W at 120 °C mount temperature. In contrast, larger packages like SMAJ12A rely more on ambient convection and exhibit higher thermal resistance.
Can MSMP12A-M3/89A replace older SMA or SMB package TVS diodes in existing designs?
Direct replacement requires PCB layout revision due to the MicroSMP (DO-219AD) footprint (2.30 mm × 1.10 mm) differing from SMA (4.5 mm × 2.7 mm) or SMB (3.9 mm × 2.6 mm). While electrical parameters are comparable, the MSMP12A-M3/89A offers superior density and thermal mounting performance. Redesign is recommended to fully leverage the MSMP12A-M3/89A's low-profile and AEC-Q101 advantages.
MSMP12A-M3/89A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-219AD
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 12V
- Voltage - Breakdown (Min):
- 13.3V
- Voltage - Clamping (Max) @ Ipp:
- 19.9V
- Current - Peak Pulse (10/1000µs):
- 7.5A
- Power - Peak Pulse:
- 150W
- 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:
- DO-219AD (MicroSMP)
MSMP12A-M3/89A FAQ
1.How can I place an order for MSMP12A-M3/89A through Aetrix?
Please submit a Request for Quotation (RFQ) for MSMP12A-M3/89A 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 MSMP12A-M3/89A reliable?
The price and inventory of MSMP12A-M3/89A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSMP12A-M3/89A is usually 5 days.
3.What payment methods are accepted for MSMP12A-M3/89A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSMP12A-M3/89A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSMP12A-M3/89A?
MSMP12A-M3/89A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSMP12A-M3/89A 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 MSMP12A-M3/89A?
For technical support, including MSMP12A-M3/89A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSMP12A-M3/89A requirements.
6.How does Aetrix verify that MSMP12A-M3/89A is sourced from the original manufacturer or authorized distributors?
All MSMP12A-M3/89A 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 MSMP12A-M3/89A meets industry standards.
7.What is the process for return or replacement of MSMP12A-M3/89A?
All MSMP12A-M3/89A units undergo pre-shipment inspection (PSI). If there is an issue with MSMP12A-M3/89A, 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 MSMP12A-M3/89A part is unused and in its original packaging.
Return procedure for MSMP12A-M3/89A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MSMP12A-M3/89A Tags
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Diodes Incorporated
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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