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Vishay General Semiconductor - Diodes Division SMAJ130AHM3/I
- Part No.:
- SMAJ130AHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMAJ130AHM3/I.pdf
- Description:
- TVS DIODE 130VWM 209VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:5,766
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Product details
Overview
SMAJ130AHM3/I from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMA (DO-214AC) package, designed for robust overvoltage protection of DC power rails and signal lines. It features a 130 V stand-off voltage (VWM), 144–159 V breakdown voltage (VBR) at 1 mA, 209 V maximum clamping voltage (VC) at 1.4 A peak pulse current, and 400 W peak pulse power rating with 10/1000 μs waveform - used to safeguard MOSFETs, ICs, and sensor interfaces against inductive switching transients and ESD in industrial and automotive systems.
For engineers reviewing the SMAJ130AHM3/I datasheet, SMAJ130AHM3/I pinout, SMAJ130AHM3/I application, or SMAJ130AHM3/I equivalent, this page delivers verified electrical parameters, thermal behavior, AEC-Q101 qualification status, halogen-free RoHS compliance, and real-world protection use cases - all critical for reliability-critical board-level surge design and BOM validation.
Technical Context
This unidirectional TVS diode operates as a voltage-clamped shunt protector: under normal conditions it presents high impedance (>1 μA leakage at 130 V), but triggers into low-impedance conduction when transient voltage exceeds its breakdown threshold. Its glass-passivated junction ensures stable VBR tolerance (±5%) and fast response (<1 ns), while the SMA package supports automated SMT placement and meets MSL Level 1 reflow standards (260 °C peak).
Thermally, it exhibits RθJA = 120 °C/W (on 0.2" × 0.2" copper pads) and RθJL = 30 °C/W, enabling reliable operation up to TJ = +150 °C. The HM3 suffix confirms halogen-free, RoHS-compliant construction and AEC-Q101 qualification - making it suitable for automotive ECUs and industrial controllers where long-term surge immunity and process compatibility are mandatory.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 130 V - Maximum continuous reverse operating voltage before leakage exceeds 1 μA; defines safe DC rail margin. |
| VBR (Breakdown Voltage) | 144–159 V at 1 mA - Confirmed minimum/maximum clamping initiation threshold; ±5% tolerance ensures predictable turn-on. |
| VC (Clamping Voltage) | 209 V at IPPM = 1.4 A - Peak voltage seen by protected circuit during 10/1000 μs surge; determines downstream component stress. |
| PPPM (Peak Pulse Power) | 400 W - Sustained energy absorption capability per single 10/1000 μs transient; derates to 300 W above 78 V. |
| IFSM (Surge Current) | 40 A - Single half-sine 8.3 ms forward surge rating; validates robustness against repetitive load-dump events. |
| TJmax | +150 °C - Maximum junction temperature; enables operation in under-hood or enclosed industrial enclosures. |
| Package | SMA (DO-214AC) - Surface-mount outline with cathode band marking; compatible with standard 0.2" × 0.2" pad layout per datasheet Fig. 6. |
Pinout & Package
Package: SMA (DO-214AC), molded plastic case with matte tin-plated leads, MSL Level 1 compliant (260 °C peak reflow), UL 94 V-0 rated compound. Cathode identified by black band on body end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection point | Connected to ground or low-impedance return path; completes shunt path during transient conduction. |
| Cathode | High-side connection point | Connected to protected line (e.g., 12 V rail or sensor output); polarity-sensitive for unidirectional operation. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics per stress test requirements - supports deployment in engine control, ADAS, and body modules without additional qualification. |
| Halogen-free & RoHS-compliant (HM3) | Meets JESD201 Class 2 whisker resistance and global environmental mandates - eliminates brominated flame retardants and lead-free assembly compatibility. |
| 400 W peak pulse power (10/1000 μs) | Handles high-energy transients common in 24 V industrial systems and 12 V automotive load-dump events without degradation. |
| Fast response time (<1 ns) | Clamps before sensitive downstream logic or analog circuitry sustains damage - critical for protecting high-speed sensor interfaces. |
| Low incremental surge resistance | Minimizes VC overshoot during high di/dt events - ensures tighter clamping margin versus competing TVS devices. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 12 V/24 V supply inputs in engine control units (ECUs) against ISO 7637-2 load-dump transients up to 60 V peak. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between power rail and chassis ground to clamp surges before they reach LDOs and microcontrollers. Use Value: Limits rail voltage to ≤209 V during 1.4 A transient, preventing latch-up or permanent damage to 36 V-rated power management ICs. |
Use Scenario: Safeguarding analog outputs (e.g., 4–20 mA current loops or 0–10 V signals) from ESD and cable discharge events in factory automation sensors. IC Role / Device Role / Timing Role: Low-capacitance TVS mounted directly at connector entry point to divert fast transients before reaching op-amp input stages. Use Value: Sub-1 ns response ensures clamping occurs prior to op-amp input stage breakdown, preserving signal integrity and measurement accuracy. |
| DC Motor Drive Board Protection | Telecom Power Supply Input |
|
Use Scenario: Suppressing inductive kickback from brushed DC motor commutation in robotic actuators and HVAC blower modules. IC Role / Device Role / Timing Role: TVS placed across motor terminals or H-bridge supply rails to absorb stored inductive energy during PWM switching transitions. Use Value: 40 A IFSM rating withstands repeated 8.3 ms surges; 400 W PPPM handles worst-case flyback energy without thermal runaway. |
Use Scenario: Guarding primary-side DC input of telecom power supplies against lightning-induced surges on -48 V distribution lines. IC Role / Device Role / Timing Role: First-line unidirectional TVS on input bus, coordinated with upstream MOVs and downstream filtering to meet ITU-T K.20/21 immunity requirements. Use Value: 130 V VWM provides sufficient margin above nominal -48 V (|48 V|), while 209 V VC ensures downstream rectifiers and controllers remain within SOA limits. |
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-M3/61 | Same electrical specs (VWM, VBR, VC, PPPM), but commercial-grade RoHS-compliant (non-halogen-free) and not AEC-Q101 qualified. | Lacks automotive qualification and halogen-free certification; suitable only for non-automotive industrial or consumer designs. | Select when AEC-Q101 and halogen-free requirements are absent, and cost optimization is prioritized over automotive compliance. |
| SMAJ130AHM3_A/I | Identical specifications and qualifications; differs only in tape-and-reel packaging (7500 pcs/reel vs. 1800 pcs/reel) and revision code (A vs. unspecified). | No functional or application difference - both meet same AEC-Q101, halogen-free, and thermal specs. | Choose based on volume procurement needs and preferred reel size; electrically and mechanically interchangeable in PCB layout. |
Compared with SMAJ130AHM3/I, the M3/61 variant lacks automotive qualification and halogen-free status - limiting use in Tier-1 automotive programs - while the HM3_A/I variant offers identical performance in larger reels, simplifying high-volume production logistics without design change.
Availability
SMAJ130AHM3/I is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor nodes, DC motor drive boards, and telecom power supply inputs requiring stable component supply, long-term lifecycle support, and AEC-Q101 assurance.
Supply support for SMAJ130AHM3/I 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability, efficiency, and application-specific performance.
The SMAJ series is engineered for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where consistent clamping, thermal stability, and qualification compliance are non-negotiable.
FAQ
What is the clamping voltage of SMAJ130AHM3/I at its rated peak pulse current?
The SMAJ130AHM3/I has a maximum clamping voltage (VC) of 209 V at IPPM = 1.4 A with a 10/1000 μs waveform. This value is measured per JEDEC standards and defines the upper voltage limit imposed on protected circuitry during surge events - critical for ensuring downstream components like regulators or microcontrollers remain within their absolute maximum ratings. The SMAJ130AHM3/I achieves this with low incremental resistance and stable thermal performance up to +150 °C junction temperature.
Is SMAJ130AHM3/I qualified for automotive applications?
Yes, SMAJ130AHM3/I is AEC-Q101 qualified, as confirmed by Vishay's ordering code suffix "HM3" and documentation in datasheet revision 09-Jan-2024. This qualification covers stress tests including high-temperature operating life, temperature cycling, and ESD - validating its suitability for under-hood and chassis-mounted automotive electronics such as body control modules and ADAS sensor hubs. The SMAJ130AHM3/I also meets halogen-free and RoHS requirements essential for modern vehicle platforms.
What does the 'HM3' suffix mean in SMAJ130AHM3/I?
The 'HM3' suffix in SMAJ130AHM3/I indicates halogen-free, RoHS-compliant construction with AEC-Q101 qualification - distinguishing it from commercial variants like 'M3' (RoHS but not halogen-free or automotive-qualified) or 'E3' (RoHS-compliant commercial grade). Per Vishay's ordering guide, HM3 devices undergo additional reliability screening and use bromine/chlorine-free molding compounds, satisfying stringent environmental and automotive supply chain mandates without compromising electrical performance or thermal robustness.
Can SMAJ130AHM3/I be used in bidirectional protection circuits?
No, SMAJ130AHM3/I is a unidirectional TVS diode, as indicated by the 'A' (not 'CA') suffix and presence of cathode band marking. It conducts only in reverse bias above VBR and blocks forward current beyond ~3.5 V. For bidirectional protection - such as AC signal lines or differential buses - the SMAJ130CA family must be selected instead. Using SMAJ130AHM3/I in bidirectional configurations risks forward conduction failure and inadequate clamping during positive transients.
What is the thermal resistance of SMAJ130AHM3/I, and how does it affect PCB layout?
SMAJ130AHM3/I has a typical junction-to-ambient thermal resistance (RθJA) of 120 °C/W when mounted on 0.2" × 0.2" copper pads per terminal, and RθJL = 30 °C/W to the lead. These values require adherence to Vishay's recommended pad layout (Document 88390, Fig. 6) - undersized pads or insufficient copper area will elevate junction temperature, reducing surge endurance and accelerating parametric drift. For high-reliability designs, thermal vias under pads and internal ground planes are strongly advised to maintain TJ ≤ +150 °C during repetitive transients.
SMAJ130AHM3/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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:
- 400W
- 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:
- DO-214AC (SMA)
SMAJ130AHM3/I FAQ
1.How can I place an order for SMAJ130AHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMAJ130AHM3/I 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 SMAJ130AHM3/I reliable?
The price and inventory of SMAJ130AHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMAJ130AHM3/I is usually 5 days.
3.What payment methods are accepted for SMAJ130AHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMAJ130AHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMAJ130AHM3/I?
SMAJ130AHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMAJ130AHM3/I 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 SMAJ130AHM3/I?
For technical support, including SMAJ130AHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMAJ130AHM3/I requirements.
6.How does Aetrix verify that SMAJ130AHM3/I is sourced from the original manufacturer or authorized distributors?
All SMAJ130AHM3/I 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 SMAJ130AHM3/I meets industry standards.
7.What is the process for return or replacement of SMAJ130AHM3/I?
All SMAJ130AHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with SMAJ130AHM3/I, 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 SMAJ130AHM3/I part is unused and in its original packaging.
Return procedure for SMAJ130AHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMAJ130AHM3/I Tags
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