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Vishay General Semiconductor - Diodes Division SMAJ130AHE3/5A
- Part No.:
- SMAJ130AHE3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMAJ130AHE3/5A.pdf
- Description:
- TVS DIODE 130VWM 209VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:9,330
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Product details
Overview
SMAJ130AHE3/5A 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 standoff voltage (VWM), 144–159 V breakdown range (VBR at 1 mA), and clamps transients to ≤209 V at 1.4 A peak pulse current (IPPM) under 10/1000 μs waveform - deployed in automotive power modules and industrial sensor interfaces.
For engineers reviewing the SMAJ130AHE3/5A datasheet, SMAJ130AHE3/5A pinout, SMAJ130AHE3/5A application, or SMAJ130AHE3/5A equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, 400 W peak pulse power rating (derated to 300 W above 78 V), low thermal resistance (RθJA = 120 °C/W), and RoHS-compliant matte tin-plated leads suitable for automated SMT assembly.
Technical Context
This TVS diode operates as a clamping device that remains high-impedance below VWM = 130 V and rapidly transitions to low-impedance conduction once VBR (144–159 V) is exceeded. Its glass-passivated junction ensures stable breakdown characteristics and fast response time (<1 ps), enabling suppression of ESD, lightning-induced surges, and inductive switching transients on 12 V–48 V systems.
The device is rated for 40 A non-repetitive forward surge current (IFSM, 8.3 ms half-sine), supports continuous power dissipation of 3.3 W at TA = 50 °C, and maintains operation across -55 °C to +150 °C junction temperature range - validated per J-STD-020 MSL Level 1 with 260 °C reflow peak.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 130 V - Maximum continuous reverse operating voltage before significant leakage; defines safe DC rail margin for 125 V nominal systems. |
| VBR (Breakdown Voltage) | 144–159 V at IT = 1 mA - Confirmed minimum/maximum threshold where clamping initiates; ensures consistent turn-on across production lots. |
| VC (Clamping Voltage) | ≤209 V at IPPM = 1.4 A (10/1000 μs) - Peak voltage seen by protected IC during surge; determines downstream component voltage stress. |
| PPPM (Peak Pulse Power) | 400 W (≤78 V), 300 W (>78 V) - Surge energy handling capacity; enables protection against ISO 7637-2 Pulse 1/2a/5a in automotive environments. |
| IFSM (Surge Current) | 40 A (8.3 ms half-sine) - Withstands repetitive load dump events without degradation; critical for engine control unit (ECU) input protection. |
| RθJA (Thermal Resistance) | 120 °C/W - Junction-to-ambient thermal impedance on standard 0.2" × 0.2" copper pads; informs PCB thermal design for sustained power dissipation. |
| AEC-Q101 Qualified | Yes - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing; required for under-hood and body electronics. |
Pinout & Package
Package: SMA (DO-214AC) - Surface-mount, low-profile plastic case with matte tin-plated leads; meets UL 94 V-0 flammability rating and J-STD-002 solderability requirements. Cathode indicated by band on one end; anode is unmarked opposite terminal.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Reverse voltage reference | Connected to lower-potential side (e.g., ground or return path); defines unidirectional conduction direction. |
| Cathode (banded end) | Clamping output / Surge sink node | Connected to protected line (e.g., 130 V supply rail); conducts surge current to ground when VAK exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power (10/1000 μs) | Enables compliance with ISO 16750-2 and IEC 61000-4-5 Level 3 surge immunity for 12 V/24 V automotive subsystems. |
| Glass passivated junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling and humidity exposure in harsh environments. |
| AEC-Q101 qualified (HE3 suffix) | Confirms qualification for automotive applications including engine management, ADAS sensors, and infotainment power inputs. |
| MSL Level 1 (260 °C peak) | Supports lead-free reflow without popcorn cracking or delamination; eliminates pre-bake requirement for high-volume SMT lines. |
| Low incremental surge resistance | Minimizes clamping voltage overshoot during fast-rising transients (e.g., ESD >15 kV contact discharge), improving system-level immunity. |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Clamping |
|---|---|
|
Use Scenario: Protecting 130 V DC input of automotive body control module (BCM) against load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between battery rail and input filter capacitor to clamp transients before LDO regulator. Use Value: Limits voltage excursion to ≤209 V during 100 V/100 ms load dump event, preventing damage to downstream 150 V-rated MOSFETs and gate drivers. |
Use Scenario: Shielding analog output (4–20 mA) of pressure sensor in factory automation PLC I/O module from field-wiring induced surges. IC Role / Device Role / Timing Role: Standoff-clamp TVS connected across sensor output and ground to shunt transient energy before op-amp input stage. Use Value: Maintains signal integrity by clamping 1 kV/500 Ω surge to <210 V within <1 ns, avoiding ADC saturation and data corruption. |
| Telecom DC Power Feeding Protection | Renewable Energy Inverter DC Link Snubbing |
|
Use Scenario: Safeguarding PoE++ (IEEE 802.3bt Type 4) powered device front-end receiving up to 130 V DC over Ethernet cable. IC Role / Device Role / Timing Role: Primary overvoltage clamp on DC input rail upstream of DC/DC converter, configured with series fuse and common-mode choke. Use Value: Absorbs 400 W surge energy from lightning-induced longitudinal mode transients on CAT6 cabling without thermal runaway. |
Use Scenario: Suppressing commutation spikes on 130 V DC link of solar microinverter H-bridge driven by SiC MOSFETs. IC Role / Device Role / Timing Role: Unidirectional TVS placed across DC bus capacitors to clamp inductive kickback during high-frequency switching. Use Value: Reduces voltage overshoot by 35% vs. RC snubber alone, lowering SiC FET VDS stress and enabling smaller heatsink design. |
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-E3/5A | No AEC-Q101 qualification; commercial grade only; same electrical specs and package. | Not approved for automotive production; acceptable for industrial/commercial power supplies and telecom equipment. | Select when AEC-Q101 is not mandated and cost sensitivity outweighs automotive reliability validation. |
| SMAJ130CAHE3/5A | Bidirectional variant; symmetrical VBR (144–159 V) in both polarities; identical VC, PPPM, and thermal specs. | Required for AC-coupled or floating signal lines (e.g., RS-485, CAN FD) where polarity reversal may occur. | Choose only if bidirectional clamping is needed; unidirectional SMAJ130AHE3/5A offers better leakage performance in DC-only rails. |
Compared with SMAJ130A-E3/5A, the HE3 suffix adds AEC-Q101 qualification without altering electrical behavior - essential for automotive OEM sourcing. Versus SMAJ130CAHE3/5A, the unidirectional configuration provides lower reverse leakage (<1 μA at 130 V) and avoids unnecessary bidirectional conduction in fixed-polarity DC systems.
Availability
SMAJ130AHE3/5A is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, telecom power feeding circuits, and renewable energy inverters requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SMAJ130AHE3/5A 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, rectifiers, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The SMAJ series was engineered for high-energy transient suppression in space-constrained, thermally demanding environments - targeting automotive, industrial, and telecom infrastructure where failure modes must be mitigated without compromising size or cost.
FAQ
What is the clamping voltage of SMAJ130AHE3/5A at its rated peak pulse current?
The SMAJ130AHE3/5A clamps to a maximum of 209 V at its specified peak pulse current of 1.4 A under the standard 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 and confirmed in Vishay's datasheet revision 09-Jan-2024, Document Number 88390. The clamping voltage directly determines the maximum stress imposed on downstream components during surge events, making it a critical parameter for system-level overvoltage design.
Is SMAJ130AHE3/5A suitable for automotive applications?
Yes, SMAJ130AHE3/5A is AEC-Q101 qualified, as indicated by the "HE3" suffix, and is explicitly intended for automotive use cases including body electronics, powertrain modules, and ADAS sensor interfaces. Its qualification covers temperature cycling, high-temperature reverse bias, and ESD testing per automotive reliability standards. The device's 150 °C maximum junction temperature and MSL Level 1 rating further support under-hood deployment in SMAJ130AHE3/5A-based designs.
How does the SMAJ130AHE3/5A differ from the SMAJ130CAHE3/5A?
The SMAJ130AHE3/5A is unidirectional, with cathode marked and conduction only from anode to cathode, while SMAJ130CAHE3/5A is bidirectional and lacks polarity marking. Both share identical VWM (130 V), VBR (144–159 V), VC (≤209 V), and PPPM ratings. However, the unidirectional SMAJ130AHE3/5A exhibits lower reverse leakage (<1 μA at VWM) - advantageous for DC power rail protection where polarity is fixed and leakage current must be minimized.
What is the thermal resistance of SMAJ130AHE3/5A, and how does it affect PCB layout?
SMAJ130AHE3/5A 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 continuous 3.3 W dissipation, ambient temperature must remain ≤50 °C - guiding thermal pad sizing and placement relative to heat sources in SMAJ130AHE3/5A layouts.
Does SMAJ130AHE3/5A require derating above 25 °C ambient temperature?
Yes, SMAJ130AHE3/5A requires thermal derating above 25 °C ambient. Its peak pulse power rating drops linearly per Figure 2 in the datasheet: above 25 °C, PPPM decreases by approximately 3.33 mW/°C for the 400 W rating (≤78 V) and 2.5 mW/°C for the 300 W rating (>78 V). At 85 °C ambient, the 400 W rating is reduced to ~200 W. This derating must be applied in thermal simulations and surge test planning for SMAJ130AHE3/5A in high-temperature enclosures.
SMAJ130AHE3/5A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- 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:
- 300W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
SMAJ130AHE3/5A FAQ
1.How can I place an order for SMAJ130AHE3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMAJ130AHE3/5A 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 SMAJ130AHE3/5A reliable?
The price and inventory of SMAJ130AHE3/5A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMAJ130AHE3/5A is usually 5 days.
3.What payment methods are accepted for SMAJ130AHE3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMAJ130AHE3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMAJ130AHE3/5A?
SMAJ130AHE3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMAJ130AHE3/5A 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 SMAJ130AHE3/5A?
For technical support, including SMAJ130AHE3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMAJ130AHE3/5A requirements.
6.How does Aetrix verify that SMAJ130AHE3/5A is sourced from the original manufacturer or authorized distributors?
All SMAJ130AHE3/5A 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 SMAJ130AHE3/5A meets industry standards.
7.What is the process for return or replacement of SMAJ130AHE3/5A?
All SMAJ130AHE3/5A units undergo pre-shipment inspection (PSI). If there is an issue with SMAJ130AHE3/5A, 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 SMAJ130AHE3/5A part is unused and in its original packaging.
Return procedure for SMAJ130AHE3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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