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Vishay General Semiconductor - Diodes Division SMAJ130A-E3/5A
- Part No.:
- SMAJ130A-E3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMAJ130A-E3/5A.pdf
- Description:
- TVS DIODE 130VWM 209VC DO214AC
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
SMAJ130A-E3/5A from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode designed for robust overvoltage protection in DC power rails and signal lines. It features a 130 V standoff voltage (VWM), 144–159 V breakdown range at 1 mA, clamps transients to ≤209 V at 1.4 A peak pulse current, and delivers 400 W peak pulse power (10/1000 μs waveform) - deployed in automotive power supply inputs, industrial sensor interfaces, and telecom line cards.
For engineers reviewing the SMAJ130A-E3/5A datasheet, SMAJ130A-E3/5A pinout, SMAJ130A-E3/5A application, or SMAJ130A-E3/5A equivalent, key selection criteria include its unidirectional polarity, SMA (DO-214AC) package compatibility with automated SMT assembly, AEC-Q101 qualification eligibility (via HE3 suffix variants), and thermal resistance of 120 °C/W junction-to-ambient under standard pad layout.
Technical Context
This TVS diode operates as a clamping device: 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 (144–159 V). Its glass-passivated junction ensures stable avalanche behavior and fast response (<1 ns), while the unidirectional configuration enables integration on positive-rail protection paths without reverse-bias concerns.
The SMAJ130A-E3/5A is rated for 40 A non-repetitive forward surge (8.3 ms half-sine) and 150 °C maximum junction temperature. Derating applies above 25 °C ambient per Figure 2; at 78 V and above, peak pulse power is specified at 300 W instead of 400 W - a design constraint directly tied to thermal limits in the SMA package.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 130 V - Maximum continuous reverse operating voltage before significant leakage; defines upper limit of protected circuit's steady-state DC rail. |
| VBR min/max | 144 V / 159 V at 1 mA - Confirmed breakdown window; ensures reliable triggering margin above VWM with <1.5% tolerance spread. |
| VC @ IPPM | ≤209 V at 1.4 A - Clamping voltage during 10/1000 μs surge; determines worst-case overvoltage seen by downstream ICs. |
| PPPM | 400 W (≤78 V), 300 W (>78 V) - Peak pulse power handling; defines survivability against standardized lightning/surge waveforms. |
| IFSM | 40 A - Single half-sine surge rating (8.3 ms); validates robustness against inrush or load-dump events in automotive 12 V/24 V systems. |
| RθJA | 120 °C/W - Junction-to-ambient thermal resistance on 0.2" × 0.2" copper pads; sets power derating slope for sustained operation. |
| TJ max | 150 °C - Absolute maximum junction temperature; constrains ambient + self-heating budget in enclosed enclosures. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile plastic case with matte tin-plated leads. Compliant with J-STD-002 solderability and JESD22-B102 whisker testing (Class 2). Polarity indicated by cathode band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection point | Connected to ground or return path; completes clamping loop when transient exceeds VBR. |
| Cathode | High-side connection point | Connected to protected line (e.g., 130 V rail); band marking identifies this terminal on unidirectional devices. |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power (10/1000 μs) | Enables protection against IEC 61000-4-5 Level 3 surges (1 kV/2 Ω) on 130 V DC lines without external series impedance. |
| Low incremental surge resistance | Minimizes clamping voltage overshoot during fast transients, improving protection margin for sensitive 100 V+ logic or analog front-ends. |
| MSL Level 1 (260 °C reflow) | Supports single-pass lead-free reflow assembly without moisture sensitivity concerns or baking requirements. |
| AEC-Q101 qualified variants available | HE3/HM3 suffix versions meet automotive stress test requirements for engine control, body electronics, and ADAS power domains. |
| Glass passivated junction | Ensures stable, repeatable avalanche characteristics over 1000+ surge events and >15-year field life in industrial environments. |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Clamp |
|---|---|
Use Scenario: 130 V battery feed to infotainment head unit exposed to load dump (ISO 7637-2 Pulse 5a). IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed between input fuse and DC/DC converter input. Use Value: Limits transient voltage to ≤209 V, preventing damage to 150 V-rated input capacitors and enabling compliance with OEM surge immunity specs. |
Use Scenario: 4–20 mA current loop interface in PLC analog I/O module subjected to ESD and inductive switching noise. IC Role / Device Role / Timing Role: Rail-to-rail clamping element across signal and return lines, referenced to local ground. Use Value: Sub-1 ns response suppresses >8 kV contact ESD (IEC 61000-4-2) before op-amp input stages saturate or latch up. |
| Telecom Line Card Surge Suppression | Renewable Energy DC Link Protection |
Use Scenario: Primary-side protection on -48 V telecom power shelf feeding distributed baseband units. IC Role / Device Role / Timing Role: Unidirectional TVS on negative rail, cathode tied to -48 V, anode to chassis ground. Use Value: Withstands repeated 10/1000 μs surges up to 400 W, meeting Telcordia GR-1089-CORE Level 3 requirements for central office equipment. |
Use Scenario: Overvoltage clamp on 130 V DC link between solar string inverter output and battery storage system. IC Role / Device Role / Timing Role: Standoff-rated protector placed across DC bus terminals to absorb switching transients from IGBT commutation. Use Value: 130 V VWM aligns with nominal DC link voltage; 209 V clamping prevents overvoltage tripping of 250 V-rated electrolytic capacitors. |
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-M3/5A | Halogen-free, RoHS-compliant variant with identical electrical specs and SMA package. | No functional difference; selected where halogen-free materials are mandated (e.g., EU industrial equipment). | Direct material substitution when halogen-free compliance is required; same footprint, thermal, and electrical behavior. |
| SMAJ130AHE3_A/I | AEC-Q101 qualified version with same VWM, VBR, and PPPM; differs only in qualification testing and traceability. | Required for automotive applications (e.g., 12 V/24 V subsystems) needing certified reliability data and PPAP documentation. | Choose for automotive designs; not drop-in for commercial use due to cost and qualification overhead unless mandated. |
Compared with SMAJ130A-E3/5A, the M3/5A offers identical performance with halogen-free construction, while the HE3_A/I adds AEC-Q101 validation for automotive deployment - neither alters pinout, thermal profile, or clamping behavior, making them functionally aligned alternatives within their respective compliance domains.
Availability
SMAJ130A-E3/5A is available at Aetrix Electronics and suitable for automotive power input protection, industrial sensor interface hardening, and telecom line card surge suppression requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for SMAJ130A-E3/5A 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, power efficiency, and ruggedized packaging.
The SMAJ series is engineered for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where failure modes must be mitigated without compromising size or manufacturability.
FAQ
What is the maximum clamping voltage of the SMAJ130A-E3/5A under surge conditions?
The SMAJ130A-E3/5A clamps to a maximum of 209 V when subjected to its rated peak pulse current of 1.4 A (10/1000 μs waveform). This value is measured per standard test conditions in the Vishay datasheet (Document Number: 88390, Rev. 09-Jan-2024) and defines the upper voltage limit imposed on protected circuitry during transient events. Designers use this parameter to verify that downstream components remain within their absolute maximum ratings.
Is the SMAJ130A-E3/5A suitable for automotive applications?
The SMAJ130A-E3/5A itself is a commercial-grade part; however, Vishay offers the AEC-Q101 qualified variant SMAJ130AHE3_A/I for automotive use. The SMAJ130A-E3/5A shares identical electrical characteristics and package dimensions but lacks the extended stress testing required for automotive qualification. For non-safety-critical 12 V/24 V subsystems where AEC-Q101 is not mandated, SMAJ130A-E3/5A may be used - but full compliance requires the HE3 suffix version.
What does the "E3/5A" suffix indicate in SMAJ130A-E3/5A?
The "E3" denotes RoHS-compliant, commercial-grade construction with matte tin-plated leads; "5A" specifies the packaging format: 7500 units per 13-inch plastic tape-and-reel. This contrasts with "E3/61", which uses a 7-inch reel with 1800 units. Both share identical electrical and thermal performance - the suffix solely indicates environmental compliance and logistics configuration, not functional differentiation.
How does the SMAJ130A-E3/5A compare to bidirectional TVS diodes like SMAJ130CA?
The SMAJ130A-E3/5A is unidirectional and intended for DC rail protection with defined polarity (cathode to line, anode to ground), whereas SMAJ130CA is bidirectional and symmetric - suitable for AC lines or differential signal pairs. Their VWM and VBR values differ: SMAJ130A has 130 V VWM, while SMAJ130CA has 130 V standoff in both directions but different breakdown symmetry. They are not interchangeable without circuit redesign due to polarity and conduction path differences.
What is the thermal resistance and how does it affect PCB layout for SMAJ130A-E3/5A?
The SMAJ130A-E3/5A 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 per terminal. This value assumes minimal copper area; increasing pad size or adding thermal vias reduces RθJA and improves power handling. For sustained surge duty cycles or elevated ambient temperatures, designers must apply derating curves from Figure 2 of the datasheet to avoid exceeding the 150 °C maximum junction temperature.
SMAJ130A-E3/5A 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-E3/5A FAQ
1.How can I place an order for SMAJ130A-E3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMAJ130A-E3/5A 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-E3/5A reliable?
The price and inventory of SMAJ130A-E3/5A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMAJ130A-E3/5A is usually 5 days.
3.What payment methods are accepted for SMAJ130A-E3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMAJ130A-E3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMAJ130A-E3/5A?
SMAJ130A-E3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMAJ130A-E3/5A 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-E3/5A?
For technical support, including SMAJ130A-E3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMAJ130A-E3/5A requirements.
6.How does Aetrix verify that SMAJ130A-E3/5A is sourced from the original manufacturer or authorized distributors?
All SMAJ130A-E3/5A 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-E3/5A meets industry standards.
7.What is the process for return or replacement of SMAJ130A-E3/5A?
All SMAJ130A-E3/5A units undergo pre-shipment inspection (PSI). If there is an issue with SMAJ130A-E3/5A, 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-E3/5A part is unused and in its original packaging.
Return procedure for SMAJ130A-E3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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