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Taiwan Semiconductor Corporation SMAJ130C
- Part No.:
- SMAJ130C
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMAJ130C.pdf
- Description:
- 300W, 160V, 10%, BIDIRECTIONAL,
- Quantity:
- Payment:
- Shipping:
Inventory:2,360
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Product details
Overview
SMAJ130C from Taiwan Semiconductor is a unidirectional 400W surface-mount transient voltage suppressor (TVS) diode in DO-214AC (SMA) package, with 130V working stand-off voltage (VWM), 144–176V breakdown voltage (VBR @ 1mA), and 231V maximum clamping voltage (VC) at 1.3A peak impulse current. It delivers fast response (<1.0ps), low leakage (<1µA), and meets ISO 7637-2 Pulse 1/2a/2b/3a/3b for automotive power line protection.
For engineers reviewing the SMAJ130C datasheet, SMAJ130C pinout, SMAJ130C application, or SMAJ130C equivalent, key selection criteria include clamping performance under 10/1000µs surge, unidirectional polarity marking, DO-214AC thermal and mechanical compatibility, and compliance with automotive transients and RoHS/halogen-free requirements.
Technical Context
The SMAJ130C operates as a unidirectional avalanche diode, triggered when reverse voltage exceeds its VBR range (144–176V). Its glass-passivated junction ensures stable breakdown and low leakage (<1µA at 130V), while its 400W peak pulse power rating (10/1000µs) supports robust transient suppression in DC power rails.
Designed for single-die configuration in DO-214AC, it features matte tin-plated leads compliant with J-STD-002 solderability and JESD 201 Class 2 whisker resistance. Polarity is marked by cathode band; operating junction temperature spans –55°C to +150°C, with moisture sensitivity level 1 per J-STD-020.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 130 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR min/max | 144 V / 176 V @ 1 mA - Confirmed avalanche onset range ensuring reliable turn-on margin above VWM |
| VC @ IPPM | 231 V @ 1.3 A - Clamped voltage during 10/1000µs surge, defining worst-case overvoltage seen by protected circuit |
| PPPM | 400 W (10/1000µs) - Peak surge energy handling capacity without failure |
| IR @ VWM | <1 µA - Negligible leakage current at rated stand-off, minimizing standby power loss |
| Package | DO-214AC (SMA) - Industry-standard surface-mount outline with 0.060g mass and UL 94V-0 molding compound |
| TJ max | +150 °C - Maximum junction temperature enabling operation in high-ambient automotive or industrial environments |
Pinout & Package
DO-214AC (SMA) package: molded plastic case with axial leads, cathode indicated by band; terminals are anode (unmarked end) and cathode (banded end); compatible with automated placement and reflow soldering per J-STD-002.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side of protected line (e.g., ground or return path) |
| Cathode | Avalanche clamping terminal | Connected to higher-potential side (e.g., +130V rail); marked with band for polarity identification |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable, repeatable breakdown voltage and long-term reliability under repeated surge stress |
| Fast response time <1.0 ps | Clamps transients before sensitive downstream ICs experience damaging overvoltage |
| ISO 7637-2 compliance (Pulse 1/2a/2b/3a/3b) | Validated for automotive 12V system power line immunity, including load dump and inductive switching events |
| RoHS & halogen-free | Meets IEC 61249-2-21 and environmental directives for green manufacturing and end-of-life processing |
| Moisture sensitivity level 1 | Eliminates need for dry-pack or baking prior to SMT assembly, reducing production overhead |
Applications
| Automotive Power Line Protection | Industrial DC/DC Converter Input |
|---|---|
Use Scenario: Protecting 12V/24V vehicle electronics (ECUs, sensors, infotainment) against load dump and alternator transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed across power input to clamp surges before they reach LDOs or microcontrollers. Use Value: Limits voltage to ≤231V during 10/1000µs pulses, preventing latch-up or gate oxide damage in downstream silicon. | Use Scenario: Safeguarding isolated DC/DC converter primary-side inputs in factory automation controllers. IC Role / Device Role / Timing Role: Standoff-rated transient suppressor on 130V intermediate bus, absorbing switching noise and ESD-induced spikes. Use Value: Maintains <1µA leakage at 130V, avoiding unnecessary power drain while delivering 400W surge headroom. |
| LED Driver Power Stage | Telecom Power Supply Input |
Use Scenario: Shielding constant-current LED driver ICs from inductive kickback in streetlight or signage systems. IC Role / Device Role / Timing Role: Unidirectional clamping device on high-side switch node, referenced to ground. Use Value: Cathode-band polarity ensures correct orientation; DO-214AC footprint allows compact layout near MOSFET gate drivers. | Use Scenario: Front-end surge protection for 48V telecom rectifier modules exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Primary-line TVS on DC input bus, coordinated with upstream MOVs and filters. Use Value: 231V clamping voltage enables tighter design margins versus legacy 250V+ suppressors, improving system-level surge survivability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ130A | Bidirectional variant; symmetric clamping in both polarities; VBR 144–159V; VC = 209V @ 1.5A | Required where AC-coupled lines or bidirectional signal paths need protection (e.g., RS-485, CAN bus) | Select SMAJ130A only if polarity reversal or AC transients are present; SMAJ130C is optimal for fixed-polarity DC rails. |
| SMBJ130C | Same electrical specs but in larger DO-214AA (SMB) package; 600W peak power rating; higher thermal mass | Suitable for higher-energy surge environments where PCB space permits larger footprint and improved heat dissipation | Choose SMBJ130C when 600W surge headroom or enhanced thermal derating is required; SMAJ130C fits tighter layouts with 400W capability. |
Compared with SMAJ130A and SMBJ130C, the SMAJ130C offers optimized unidirectional clamping in the smallest standard surface-mount TVS package, balancing board area, cost, and 400W surge immunity for fixed-rail DC protection.
Availability
SMAJ130C is available at Aetrix Electronics and suitable for automotive power line protection, industrial DC/DC converter input stages, and LED driver power stage applications requiring stable component supply, full traceability, and lifecycle continuity.
Supply support for SMAJ130C 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
Taiwan Semiconductor Corporation (TSC) is a vertically integrated analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, specializing in TVS diodes, rectifiers, MOSFETs, and power management devices.
The SMAJ series was designed specifically for high-reliability, surface-mount transient suppression in automotive and industrial power systems, emphasizing fast response, low leakage, and international surge standard compliance.
FAQ
What is the polarity configuration of the SMAJ130C?
The SMAJ130C is a unidirectional TVS diode, with cathode identified by a band on the DO-214AC package. It conducts in forward bias and clamps transients only in reverse bias above VBR. This configuration matches fixed-polarity DC power rails, unlike bidirectional variants such as SMAJ130A.
Does the SMAJ130C meet automotive transient standards?
Yes, the SMAJ130C meets ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b requirements for 12V automotive electrical systems. Its 400W peak pulse power rating and 231V clamping voltage at 1.3A ensure robust protection against load dump, inductive switching, and coupling transients without degradation.
What is the maximum clamping voltage of the SMAJ130C under surge conditions?
The SMAJ130C has a maximum clamping voltage (VC) of 231 V at 1.3 A peak impulse current, tested with a 10/1000µs waveform. This value defines the upper voltage limit imposed on protected circuitry during standardized surge events and is confirmed in the manufacturer's electrical specifications table.
Is the SMAJ130C RoHS and halogen-free compliant?
Yes, the SMAJ130C is RoHS compliant and halogen-free per IEC 61249-2-21. The molding compound is UL 94V-0 rated, and terminals are matte tin plated to meet J-STD-002 solderability requirements-ensuring environmental compliance and process compatibility for lead-free reflow assembly.
What is the junction temperature range for the SMAJ130C?
The SMAJ130C operates across a junction temperature range of –55°C to +150°C, supporting deployment in under-hood automotive, industrial control cabinets, and outdoor lighting environments. Its DO-214AC package and glass-passivated die maintain parameter stability across this full range.
SMAJ130C Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-214AC, SMA
- Series:
- SMAJ
- 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:
- 231V
- Current - Peak Pulse (10/1000µs):
- 1.3A
- Power - Peak Pulse:
- 400W
- 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)
SMAJ130C FAQ
1.How can I place an order for SMAJ130C through Aetrix?
Please submit a Request for Quotation (RFQ) for SMAJ130C 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 SMAJ130C reliable?
The price and inventory of SMAJ130C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMAJ130C is usually 5 days.
3.What payment methods are accepted for SMAJ130C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMAJ130C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMAJ130C?
SMAJ130C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMAJ130C 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 SMAJ130C?
For technical support, including SMAJ130C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMAJ130C requirements.
6.How does Aetrix verify that SMAJ130C is sourced from the original manufacturer or authorized distributors?
All SMAJ130C 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 SMAJ130C meets industry standards.
7.What is the process for return or replacement of SMAJ130C?
All SMAJ130C units undergo pre-shipment inspection (PSI). If there is an issue with SMAJ130C, 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 SMAJ130C part is unused and in its original packaging.
Return procedure for SMAJ130C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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