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Vishay General Semiconductor - Diodes Division SMAJ130A-M3/61
- Part No.:
- SMAJ130A-M3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMAJ130A-M3/61.pdf
- Description:
- TVS DIODE 130VWM 209VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:7,018
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Product details
Overview
SMAJ130A-M3/61 from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode designed for robust overvoltage protection in power and signal lines. It features a 130 V standoff voltage (VWM), 144–159 V breakdown range at 1 mA, 209 V maximum clamping voltage at 1.4 A peak pulse current, and 400 W peak pulse power rating with 10/1000 μs waveform - deployed in automotive engine control units, industrial PLC I/O modules, and telecom power supplies.
For engineers reviewing the SMAJ130A-M3/61 datasheet, SMAJ130A-M3/61 pinout, SMAJ130A-M3/61 application, or SMAJ130A-M3/61 equivalent, key selection criteria include clamping voltage margin vs. protected IC VDD, thermal resistance (RθJA = 120 °C/W), unidirectional polarity marking, AEC-Q101 qualification eligibility (via HM3 suffix), and SMA (DO-214AC) package compatibility with automated SMT assembly.
Technical Context
This TVS diode operates as a shunt-type transient suppressor: under normal conditions it presents high impedance (>1 MΩ leakage at 130 V), but triggers into low-impedance conduction when reverse voltage exceeds its breakdown threshold. Its glass-passivated junction ensures stable avalanche characteristics and fast response (<1 ns), enabling suppression of ESD (IEC 61000-4-2), EFT (IEC 61000-4-4), and surge (IEC 61000-4-5) events.
The device is rated for 40 A non-repetitive forward surge current (8.3 ms half-sine), supports continuous power dissipation of 3.3 W at 50 °C ambient, and maintains operation across -55 °C to +150 °C junction temperature - critical for under-hood automotive and industrial environments where thermal derating must be calculated per Fig. 2 of the datasheet.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 130 V - maximum continuous reverse operating voltage before significant leakage; sets upper limit for protected circuit's nominal rail. |
| VBR (Breakdown Voltage) | 144–159 V at 1 mA - guaranteed avalanche initiation window; defines minimum overvoltage threshold for clamping action. |
| VC (Clamping Voltage) | 209 V at IPPM = 1.4 A - peak voltage seen by downstream circuit during 10/1000 μs transient; determines safe margin above IC absolute max rating. |
| PPPM (Peak Pulse Power) | 400 W - energy-handling capacity for 10/1000 μs waveform; enables protection against moderate lightning-induced surges in 24 V/48 V systems. |
| IFSM (Surge Current) | 40 A - single half-sine (8.3 ms) forward surge rating; validates robustness against inductive kickback in relay or solenoid drive circuits. |
| RθJA (Thermal Resistance) | 120 °C/W - junction-to-ambient thermal resistance on standard 0.2" × 0.2" copper pads; dictates required PCB copper area for sustained power dissipation. |
| TJmax | +150 °C - maximum allowable junction temperature; confirms suitability for under-hood or enclosed industrial enclosures without active cooling. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, halogen-free, RoHS-compliant, MSL Level 1 (260 °C reflow peak). Cathode indicated by band on body; anode is unmarked end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink node | Connected to protected line; conducts avalanche current to ground during overvoltage event. |
| Anode (unbanded end) | Reference / return path | Typically tied to system ground or low-impedance return plane; completes clamping current path. |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power (10/1000 μs) | Enables reliable suppression of IEC 61000-4-5 Level 3 (1 kV/2 Ω) surges on 24–48 V DC rails without degradation. |
| Low incremental surge resistance | Minimizes VC overshoot during fast transients, reducing stress on downstream MOSFETs or microcontrollers. |
| Glass passivated junction | Ensures stable, repeatable breakdown voltage over lifetime and temperature; eliminates parameter drift due to moisture or contamination. |
| MSL Level 1 rating (260 °C peak) | Supports standard lead-free reflow profiles without popcorn cracking or delamination - zero pre-bake required. |
| AEC-Q101 qualification option | Available with HM3 suffix for automotive applications requiring validated reliability (e.g., engine control, ADAS power domains). |
Applications
| Automotive Engine Control Unit (ECU) | Industrial PLC Digital Input Module |
|---|---|
Use Scenario: Protects 12 V sensor supply lines from load dump transients (ISO 7637-2 Pulse 5a, up to +120 V) and alternator ripple. IC Role / Device Role / Timing Role: Shunt clamping device placed between sensor VCC and chassis ground; responds within <1 ns to clamp spikes before reaching MCU analog front-end. Use Value: Maintains 209 V clamping ceiling below typical 220 V absolute max rating of automotive-grade op-amps and ADCs, preventing latch-up or permanent damage. |
Use Scenario: Shields 24 V digital input optocoupler interfaces from inductive switching noise generated by contactors and solenoids. IC Role / Device Role / Timing Role: Reverse-biased TVS across input terminals; clamps negative flyback spikes (-100 V) and positive surges (+150 V) induced by field wiring. Use Value: Withstands 40 A surge current without failure, ensuring long-term reliability in factory automation environments with frequent actuator cycling. |
| Telecom Power Supply Output | Consumer Appliance Motor Drive Board |
Use Scenario: Guards +48 V DC output of telecom rectifier modules against lightning-induced surges entering via Ethernet or PoE cabling. IC Role / Device Role / Timing Role: Primary overvoltage clamp on secondary-side DC bus; coordinates with upstream MOVs and gas discharge tubes in multi-stage protection architecture. Use Value: 400 W rating allows absorption of 10/1000 μs surges up to 1.4 A while maintaining <210 V clamping - preserving integrity of downstream DC-DC converters. |
Use Scenario: Safeguards microcontroller GPIOs and gate drivers from back-EMF generated by brushed DC motors in washing machines or HVAC blowers. IC Role / Device Role / Timing Role: Localized TVS at motor driver IC inputs and power FET source nodes; provides point-of-use suppression independent of board-level filtering. Use Value: 150 °C max junction temperature rating ensures stable operation near heat-generating motor windings and power stages without thermal shutdown. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ130A-E3/61 | Same electrical specs; RoHS-compliant but not halogen-free; uses matte tin plating per J-STD-002. | Approved for commercial-grade industrial equipment; lacks halogen-free certification required for some EU consumer products. | Select when halogen-free compliance is not mandated and cost optimization is prioritized. |
| SMAJ130AHE3_A/H | Identical electrical parameters; AEC-Q101 qualified; packaged in 7" tape/reel (H code); base P/N includes HE3 suffix. | Validated for automotive powertrain and body electronics; requires full qualification documentation and PPAP support. | Choose for automotive OEM designs requiring certified reliability and traceable lot history. |
Compared with SMAJ130A-M3/61, the E3 variant offers identical protection performance at lower material cost but excludes halogen-free assurance, while the HE3 variant adds automotive qualification rigor - making SMAJ130A-M3/61 the optimal balance of environmental compliance, industrial reliability, and SMT process compatibility.
Availability
SMAJ130A-M3/61 is available at Aetrix Electronics and suitable for automotive ECU protection, industrial PLC I/O hardening, and telecom power supply surge suppression requiring stable component supply, halogen-free compliance, and MSL Level 1 reflow readiness.
Supply support for SMAJ130A-M3/61 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, MOSFETs, and protection devices with emphasis on high-reliability, high-efficiency, and automotive-grade solutions.
The SMAJ series was engineered for surface-mount transient suppression in harsh environments - delivering consistent clamping performance, low leakage, and robust surge handling across automotive, industrial, and telecom infrastructure applications.
FAQ
What is the clamping voltage of the SMAJ130A-M3/61 under a 10/1000 μs surge?
The SMAJ130A-M3/61 exhibits a maximum clamping voltage (VC) of 209 V when subjected to its rated peak pulse current of 1.4 A using the standardized 10/1000 μs waveform. This value is measured per Figure 1 and Table on page 2 of the Vishay datasheet 88390, and defines the upper voltage limit imposed on protected circuitry during transient events - critical for ensuring compatibility with downstream components' absolute maximum ratings.
Is the SMAJ130A-M3/61 suitable for automotive applications?
The SMAJ130A-M3/61 itself is not AEC-Q101 qualified, but Vishay offers the functionally identical SMAJ130AHM3_A/H variant with full AEC-Q101 certification. The SMAJ130A-M3/61 shares the same electrical specifications, SMA package, and halogen-free construction - making it appropriate for non-safety-critical automotive subsystems (e.g., infotainment power rails) where qualification is not mandated, provided system-level validation is performed.
What does the "M3" suffix indicate in SMAJ130A-M3/61?
The "M3" suffix in SMAJ130A-M3/61 denotes halogen-free, RoHS-compliant construction with matte tin-plated leads meeting J-STD-002 solderability and JESD 201 Class 2 whisker resistance requirements. It distinguishes this version from the "E3" (RoHS-compliant but not halogen-free) and "HM3" (AEC-Q101 qualified + halogen-free) variants - confirming compliance with stringent environmental standards for consumer and industrial end equipment.
How does the SMAJ130A-M3/61 compare to SMAJ130CA in bidirectional use?
The SMAJ130A-M3/61 is unidirectional and features a cathode band; the SMAJ130CA is bidirectional with no polarity marking and symmetrical breakdown in both directions. While both share 130 V standoff and similar clamping, the SMAJ130A-M3/61 is intended for DC line protection where polarity is fixed, whereas SMAJ130CA suits AC-coupled or floating signal lines - substitution requires circuit redesign to accommodate polarity constraints and grounding topology.
What PCB layout guidance applies to the SMAJ130A-M3/61 for optimal thermal performance?
For optimal thermal performance, the SMAJ130A-M3/61 should be mounted on minimum 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal, as specified in the Vishay datasheet. Increasing pad area or adding thermal vias to inner ground planes reduces effective RθJA below the nominal 120 °C/W, enabling higher sustained power dissipation and improved reliability in thermally constrained layouts - especially critical in sealed industrial enclosures.
SMAJ130A-M3/61 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 130V
- Voltage - Breakdown (Min):
- 144V
- Voltage - Clamping (Max) @ Ipp:
- 209V
- Current - Peak Pulse (10/1000µs):
- 1.4A
- Power - Peak Pulse:
- 300W
- 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-214AC (SMA)
SMAJ130A-M3/61 FAQ
1.How can I place an order for SMAJ130A-M3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMAJ130A-M3/61 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 SMAJ130A-M3/61 reliable?
The price and inventory of SMAJ130A-M3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMAJ130A-M3/61 is usually 5 days.
3.What payment methods are accepted for SMAJ130A-M3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMAJ130A-M3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMAJ130A-M3/61?
SMAJ130A-M3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMAJ130A-M3/61 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 SMAJ130A-M3/61?
For technical support, including SMAJ130A-M3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMAJ130A-M3/61 requirements.
6.How does Aetrix verify that SMAJ130A-M3/61 is sourced from the original manufacturer or authorized distributors?
All SMAJ130A-M3/61 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 SMAJ130A-M3/61 meets industry standards.
7.What is the process for return or replacement of SMAJ130A-M3/61?
All SMAJ130A-M3/61 units undergo pre-shipment inspection (PSI). If there is an issue with SMAJ130A-M3/61, 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 SMAJ130A-M3/61 part is unused and in its original packaging.
Return procedure for SMAJ130A-M3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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