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Vishay General Semiconductor - Diodes Division SMAJ130AHM3_A/I
- Part No.:
- SMAJ130AHM3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMAJ130AHM3_A/I.pdf
- Description:
- TVS DIODE 130VWM 209VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:3,074
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Product details
Overview
SMAJ130AHM3_A/I from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMA (DO-214AC) package, designed for clamping fast voltage transients on power and signal lines. It features a 130 V standoff voltage (VWM), 144–159 V breakdown range (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 protect MOSFETs, ICs, and sensor interfaces in automotive and industrial power rails.
For engineers reviewing the SMAJ130AHM3_A/I datasheet, SMAJ130AHM3_A/I pinout, SMAJ130AHM3_A/I application, or SMAJ130AHM3_A/I equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification (via HM3 suffix), 150 °C max junction temperature, low incremental surge resistance, and compatibility with automated SMT assembly on 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode operates as a voltage-clamping protection device triggered by reverse-biased avalanche breakdown. Its glass-passivated junction ensures stable VBR tolerance (±5 %) and fast response time (<1 ps), while the SMA package supports high thermal dissipation (RθJA = 120 °C/W) and meets MSL level 1 reflow requirements (260 °C peak).
The device delivers 400 W peak pulse power up to 78 V and derates to 300 W above that threshold, with clamping performance validated under standardized 10/1000 μs surge waveforms per ANSI/IEEE C62.35. It exhibits 1.4 A peak pulse current (IPPM) at VC = 209 V and maintains <1.0 μA reverse leakage at VWM = 130 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 130 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR (min/max) | 144 V / 159 V at 1 mA - Ensures reliable turn-on within tight tolerance for predictable protection threshold |
| VC @ IPPM | 209 V at 1.4 A - Clamped voltage during 10/1000 μs surge, limiting stress on downstream components |
| PPPM | 400 W (≤78 V), 300 W (>78 V) - Peak surge energy handling capability under standard waveform |
| IFSM | 40 A - Surge current rating for 8.3 ms half-sine wave, supporting inrush and fault events |
| TJ max | +150 °C - Enables operation in under-hood automotive and high-temperature industrial environments |
| Package | SMA (DO-214AC) - Surface-mount footprint compatible with IPC-7351B standard, 0.208" × 0.157" |
Pinout & Package
Package: SMA (DO-214AC), molded plastic case with matte tin-plated leads, UL 94 V-0 rated, MSL Level 1 compliant. Cathode indicated by band marking on unidirectional variant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., ground or return path) in unidirectional configuration |
| Cathode | Avalanche clamping terminal | Banded end; connected to protected line (e.g., 130 V rail) to clamp transients toward ground |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and body electronics |
| Halogen-free & RoHS-compliant | HM3 suffix confirms compliance with environmental standards and JESD201 Class 2 whisker resistance |
| 400 W peak pulse power | Robust protection against ISO 7637-2 pulse 1/2a/5a and IEC 61000-4-5 surges in industrial power supplies |
| Low clamping ratio (VC/VBR ≈ 1.39) | Minimizes overvoltage stress on protected ICs compared to higher-ratio TVS devices |
| Fast response time (<1 ps) | Clamps ESD and lightning-induced transients before sensitive circuitry sustains damage |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V/24 V battery-fed ECUs from load dump and alternator transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and chassis ground to clamp spikes up to ±100 V. Use Value: Limits voltage seen by MCU power pins to ≤209 V during 300 W surges, preventing latch-up or gate oxide failure. | Use Scenario: Shielding analog output lines of pressure/temperature sensors in factory automation systems. IC Role / Device Role / Timing Role: TVS mounted at connector entry point to absorb induced surges from nearby motor switching. Use Value: Maintains signal integrity by clamping transients before they couple into 4–20 mA or 0–10 V circuits. |
| Telecom DC Power Input Protection | Consumer Device USB/DC Jack Protection |
Use Scenario: Safeguarding PoE-powered switches and base stations against AC/DC adapter transients and lightning coupling. IC Role / Device Role / Timing Role: Primary clamping device on 48 V input rail upstream of DC/DC converter. Use Value: Withstands repetitive 10/1000 μs surges at 0.01 % duty cycle without degradation, ensuring long-term reliability. | Use Scenario: Adding surge immunity to wall adapter inputs in smart home hubs and set-top boxes. IC Role / Device Role / Timing Role: Standoff-rated TVS on 5–12 V DC input to suppress plug-in/out transients and ESD. Use Value: Leverages 130 V VWM margin to avoid leakage or false triggering during normal operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ130AHE3_A/I | RoHS-compliant, commercial-grade (non-AEC-Q101), same VWM/VC/PPPM, E3 suffix | Lacks automotive qualification; suitable for consumer/industrial non-automotive use | Select when AEC-Q101 is not required and halogen-free is not mandated |
| SMBJ130A-HM3_A/I | Same electrical specs but SMB (DO-214AA) package - 2.54 mm lead pitch vs. SMA's 2.29 mm; 600 W PPPM | Higher power rating and larger footprint; requires PCB layout change | Choose for enhanced surge margin where board space allows larger package |
Compared with SMAJ130AHM3_A/I, the SMAJ130AHE3_A/I offers identical clamping performance without automotive qualification, while SMBJ130A-HM3_A/I provides 50 % higher peak power in a physically larger package - enabling trade-offs between layout density, qualification, and surge headroom.
Availability
SMAJ130AHM3_A/I is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor nodes, telecom power supplies, and consumer DC-input protection requiring stable component supply across production lifecycles.
Supply support for SMAJ130AHM3_A/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, rectifiers, TVS, MOSFETs, and optoelectronics with emphasis on reliability and application-specific performance.
The SMAJ series is engineered for robust transient suppression in harsh environments, targeting automotive, industrial, and telecom applications where high surge immunity and AEC-Q101 validation are critical.
FAQ
What is the clamping voltage of the SMAJ130AHM3_A/I under a 10/1000 μs surge?
The SMAJ130AHM3_A/I has a maximum clamping voltage (VC) of 209 V at 1.4 A peak pulse current (IPPM) under the standardized 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 and ensures downstream components see no more than 209 V during transient events - a critical parameter for protecting 150 V-rated MOSFETs or 200 V-input DC/DC converters. The SMAJ130AHM3_A/I achieves this with low incremental surge resistance and fast avalanche response.
Is the SMAJ130AHM3_A/I qualified for automotive applications?
Yes, the SMAJ130AHM3_A/I is AEC-Q101 qualified, as confirmed by the "HM3" suffix and Vishay documentation. This qualification validates its reliability under temperature cycling, humidity, mechanical shock, and surge stress conditions required for automotive electronics - including engine control modules, body control units, and ADAS power domains. The SMAJ130AHM3_A/I also meets JESD201 Class 2 whisker resistance and MSL Level 1 reflow standards.
What does the "HM3" suffix indicate in SMAJ130AHM3_A/I?
The "HM3" suffix in SMAJ130AHM3_A/I denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification. Specifically, "H" indicates halogen-free molding compound, "M3" confirms RoHS compliance and JESD201 Class 2 whisker resistance, and the full suffix aligns with Vishay's automotive-grade ordering code structure. This distinguishes it from commercial-grade variants like SMAJ130A-E3 and ensures suitability for regulated automotive and green-industrial designs. The SMAJ130AHM3_A/I is supplied in 13" tape-and-reel (7500 pcs) with "I" carrier code.
How does the SMAJ130AHM3_A/I compare to bidirectional TVS diodes?
The SMAJ130AHM3_A/I is unidirectional and intended for DC line protection where polarity is fixed - such as +130 V rails referenced to ground. Unlike bidirectional types (e.g., SMAJ130CA), it conducts only in reverse avalanche and blocks forward current up to 3.5 V at 25 A. This makes it unsuitable for AC or floating differential lines but ideal for minimizing leakage and optimizing clamping precision in polarized systems. The SMAJ130AHM3_A/I's cathode band clearly identifies orientation for correct PCB placement.
What is the thermal resistance and power derating behavior of the SMAJ130AHM3_A/I?
The SMAJ130AHM3_A/I has a typical junction-to-ambient thermal resistance (RθJA) of 120 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads. Its 3.3 W steady-state power dissipation (PD) derates linearly above 25 °C ambient, reaching zero at 150 °C junction temperature. Peak pulse power drops from 400 W to 300 W above 78 V VWM, and both ratings follow Vishay's Fig. 2 derating curve. The SMAJ130AHM3_A/I's RθJL = 30 °C/W enables effective heat transfer to PCB traces or thermal vias.
SMAJ130AHM3_A/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:
- 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:
- 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_A/I FAQ
1.How can I place an order for SMAJ130AHM3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMAJ130AHM3_A/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_A/I reliable?
The price and inventory of SMAJ130AHM3_A/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_A/I is usually 5 days.
3.What payment methods are accepted for SMAJ130AHM3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMAJ130AHM3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMAJ130AHM3_A/I?
SMAJ130AHM3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMAJ130AHM3_A/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_A/I?
For technical support, including SMAJ130AHM3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMAJ130AHM3_A/I requirements.
6.How does Aetrix verify that SMAJ130AHM3_A/I is sourced from the original manufacturer or authorized distributors?
All SMAJ130AHM3_A/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_A/I meets industry standards.
7.What is the process for return or replacement of SMAJ130AHM3_A/I?
All SMAJ130AHM3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with SMAJ130AHM3_A/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_A/I part is unused and in its original packaging.
Return procedure for SMAJ130AHM3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMAJ130AHM3_A/I Tags
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