Vishay General Semiconductor - Diodes Division SMAJ130CA-E3/61
- Part No.:
- SMAJ130CA-E3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMAJ130CA-E3/61.pdf
- Description:
- TVS DIODE 130VWM 209VC DO214AC
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
SMAJ130CA-E3/61 from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMA (DO-214AC) package, designed for clamping 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 (10/1000 μs waveform). It is used to protect MOSFETs, ICs, and sensor signal lines in industrial motor drives and automotive body control modules.
For engineers reviewing the SMAJ130CA-E3/61 datasheet, SMAJ130CA-E3/61 pinout, SMAJ130CA-E3/61 application, or SMAJ130CA-E3/61 equivalent, key selection criteria include bidirectional clamping capability, 130 V working voltage compatibility with 24 V/48 V DC bus systems, low leakage (<1.0 μA at VWM), AEC-Q101 qualification eligibility (via HE3 suffix variants), and SMA package suitability for automated SMT assembly.
Technical Context
This device operates as a voltage-clamping protector using an avalanche junction structure, responding within <1 ps to transient overvoltages. Its bidirectional symmetry enables protection of AC-coupled or floating signal paths without polarity concerns, and its 120 °C/W junction-to-ambient thermal resistance requires minimal PCB copper area for thermal management under repetitive surge conditions.
The SMAJ130CA-E3/61 delivers stable clamping performance across -55 °C to +150 °C operating temperature, with a VBR temperature coefficient of +0.108 %/°C - enabling predictable voltage margining in high-temperature environments such as engine bay electronics or industrial power supplies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 130 V - Maximum continuous reverse operating voltage before clamping begins; sets system-level overvoltage threshold for 24 V/48 V DC applications. |
| VBR (min/max) | 144 V / 159 V at 1 mA - Confirmed breakdown range ensures reliable turn-on margin above VWM; critical for avoiding false triggering during normal operation. |
| VC @ IPPM | 209 V at 1.4 A - Clamped voltage seen by protected circuit during 10/1000 μs surge; defines worst-case stress on downstream components. |
| PPPM | 400 W - Peak pulse power handling per 10/1000 μs waveform; supports protection against IEC 61000-4-5 Level 3 surges (1 kV/2 Ω). |
| IDRM | <1.0 μA at 130 V - Ultra-low reverse leakage preserves signal integrity and minimizes standby power loss in battery-powered sensors. |
| TJ max | +150 °C - Enables use in under-hood automotive or high-temperature industrial enclosures without derating. |
| Package | SMA (DO-214AC) - Standardized surface-mount outline with 5.28 mm × 4.50 mm footprint; compatible with J-STD-020 reflow profiles up to 260 °C peak. |
Pinout & Package
Package: SMA (DO-214AC), molded plastic case with matte tin-plated leads; meets UL 94 V-0 flammability rating and JESD 201 Class 2 whisker resistance. Bidirectional construction means no polarity marking - both terminals are functionally identical.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Transient conduction path | Both terminals conduct identically during positive or negative transients; no orientation required during placement. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC signals or ungrounded differential buses without external polarity logic. |
| 400 W peak pulse power (10/1000 μs) | Withstands repeated lightning-induced surges per IEC 61000-4-5 without degradation when mounted on 5 mm × 5 mm copper pads. |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (e.g., ESD or inductive switch-off), improving protection margin. |
| AEC-Q101 qualification option | HE3/HM3 suffix variants meet automotive reliability standards for under-hood and chassis-mounted ECUs. |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow without baking - reduces manufacturing overhead in high-volume SMT lines. |
Applications
| Industrial Motor Drives | Automotive Body Control Modules |
|---|---|
|
Use Scenario: Protection of gate drivers and current-sense amplifiers from flyback voltage spikes generated by PWM-controlled 48 V BLDC motors. IC Role / Device Role / Timing Role: Voltage clamping element placed directly across power rail inputs to suppress >1 kV transients induced by inductive load switching. Use Value: Limits rail voltage excursion to ≤209 V, preventing damage to 200 V-rated SiC gate drivers and maintaining functional safety compliance. |
Use Scenario: Surge suppression on LIN bus lines and door module sensor inputs exposed to load dump and jump-start events. IC Role / Device Role / Timing Role: Bidirectional transient shunt connected between LIN line and ground to clamp ±100 V transients within 1 ns. Use Value: Maintains signal integrity below LIN physical layer thresholds while surviving ISO 7637-2 Pulse 5a (load dump) up to 60 V sustained. |
| Telecom Power Supplies | Consumer Appliance Control Boards |
|
Use Scenario: Input-stage protection for 48 V telecom rectifiers subjected to AC line surges and lightning-induced common-mode transients. IC Role / Device Role / Timing Role: Primary clamping device across DC output rails, coordinated with upstream MOVs for staged energy absorption. Use Value: Provides precise 130 V clamping threshold aligned with 48 V system overvoltage protection setpoints, reducing need for secondary regulation. |
Use Scenario: ESD and EFT protection for touch panel interfaces and microcontroller I/O pins in smart washing machines and HVAC controllers. IC Role / Device Role / Timing Role: Localized TVS placed at connector entry points and MCU GPIO traces to divert 8 kV contact ESD per IEC 61000-4-2. Use Value: Achieves sub-100 ps response with <1 μA leakage, preserving capacitive touch sensitivity and battery runtime in always-on modes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ130A-E3/61 | Unidirectional version; cathode-marked; 1.0 μA leakage at VWM vs. same for CA variant. | Requires correct polarity placement; suitable only for DC-biased lines with defined ground reference. | Select when protecting unidirectional power rails where polarity is fixed and lower cost is prioritized. |
| SMBJ130CA-E3/52 | Same VWM/VC specs but in SMB (DO-214AA) package; 600 W PPPM; 10% larger footprint. | Higher power handling supports heavier industrial surges; requires PCB layout revision due to larger pad spacing. | Choose when system-level surge testing exceeds 400 W requirements or when thermal margin must be increased via larger copper area. |
Compared with SMAJ130A-E3/61, the SMAJ130CA-E3/61 eliminates polarity dependency for floating or AC-coupled nodes; compared with SMBJ130CA-E3/52, it trades 200 W pulse power headroom for space-constrained layouts in compact consumer and automotive modules.
Availability
SMAJ130CA-E3/61 is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, telecom power supplies, and consumer appliance control boards requiring stable component supply and RoHS-compliant sourcing.
Supply support for SMAJ130CA-E3/61 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, MOSFETs, optoelectronics, and passive components 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 failure due to voltage surges must be eliminated through proven clamping behavior and AEC-Q101-ready variants.
FAQ
What is the clamping voltage of SMAJ130CA-E3/61 at its rated peak pulse current?
The SMAJ130CA-E3/61 has a maximum clamping voltage (VC) of 209 V at its specified peak pulse current (IPPM) of 1.4 A, measured under the standardized 10/1000 μs double-exponential surge waveform. This value defines the upper voltage limit imposed on protected circuitry during transient events and is confirmed in the Vishay datasheet Document Number 88390, page 2.
Is SMAJ130CA-E3/61 suitable for automotive applications?
SMAJ130CA-E3/61 itself is commercial-grade (E3 suffix), but Vishay offers AEC-Q101-qualified versions under HE3/HM3 suffixes (e.g., SMAJ130CAHE3_A). The SMAJ130CA-E3/61 shares identical electrical characteristics and package dimensions, making it suitable for non-safety-critical automotive subsystems like infotainment or lighting - provided full qualification is not mandated by program requirements.
How does the bidirectional design of SMAJ130CA-E3/61 affect PCB layout?
The bidirectional design of SMAJ130CA-E3/61 eliminates polarity constraints: no cathode band marking exists, and either terminal may connect to line or ground. This simplifies layout by removing orientation checks during automated placement and allows reuse across symmetric signal pairs (e.g., RS-485, CAN FD differential lines) without redesigning silkscreen or footprint polarity indicators.
What is the thermal resistance of SMAJ130CA-E3/61, and how does it impact power dissipation?
SMAJ130CA-E3/61 has a typical junction-to-ambient thermal resistance (RθJA) of 120 °C/W when mounted on minimum recommended 0.2" × 0.2" copper pads. At its rated DC power dissipation of 3.3 W, this results in ~396 °C temperature rise - confirming that the device is intended for transient-only duty (duty cycle ≤ 0.01%), not continuous power handling.
Does SMAJ130CA-E3/61 meet lead-free soldering standards?
Yes, SMAJ130CA-E3/61 is RoHS-compliant and rated for lead-free reflow soldering per J-STD-020, with a maximum peak temperature of 260 °C. Its matte tin-plated leads are qualified to JESD 22-B102 for solderability and JESD 201 Class 2 for whisker resistance, ensuring long-term reliability in automated SMT assembly lines.
SMAJ130CA-E3/61 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:
- -
- Bidirectional Channels:
- 1
- 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)
SMAJ130CA-E3/61 FAQ
1.How can I place an order for SMAJ130CA-E3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMAJ130CA-E3/61 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 SMAJ130CA-E3/61 reliable?
The price and inventory of SMAJ130CA-E3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMAJ130CA-E3/61 is usually 5 days.
3.What payment methods are accepted for SMAJ130CA-E3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMAJ130CA-E3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMAJ130CA-E3/61?
SMAJ130CA-E3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMAJ130CA-E3/61 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 SMAJ130CA-E3/61?
For technical support, including SMAJ130CA-E3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMAJ130CA-E3/61 requirements.
6.How does Aetrix verify that SMAJ130CA-E3/61 is sourced from the original manufacturer or authorized distributors?
All SMAJ130CA-E3/61 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 SMAJ130CA-E3/61 meets industry standards.
7.What is the process for return or replacement of SMAJ130CA-E3/61?
All SMAJ130CA-E3/61 units undergo pre-shipment inspection (PSI). If there is an issue with SMAJ130CA-E3/61, 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 SMAJ130CA-E3/61 part is unused and in its original packaging.
Return procedure for SMAJ130CA-E3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMAJ130CA-E3/61 Tags

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