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Diodes Incorporated SMAJ130A-13
- Part No.:
- SMAJ130A-13
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMAJ130A-13.pdf
- Description:
- TVS DIODE 130VWM 209VC SMA
- Quantity:
- Payment:
- Shipping:
Inventory:4,306
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Product details
Overview
SMAJ130A-13 from Diodes Incorporated is a unidirectional 400W surface-mount transient voltage suppressor (TVS) diode designed for primary overvoltage protection in DC power lines and signal interfaces. It features a 130V reverse standoff voltage (VRWM), 144–159V breakdown range (VBR @ 1mA), 209V maximum clamping voltage (VC) at 1.9A peak pulse current, and operates from –55°C to +150°C - used in industrial power supply input stages and telecom interface surge protection.
For engineers reviewing the SMAJ130A-13 datasheet, SMAJ130A-13 pinout, SMAJ130A-13 application, or SMAJ130A-13 equivalent, key selection criteria include clamping voltage margin vs. protected IC VDD rating, 8.3ms half-sine surge current capability (1.9A), unidirectional polarity requirement, and SMA package thermal derating above 25°C ambient.
Technical Context
This TVS diode employs glass-passivated junction construction for stable breakdown characteristics and fast response (<1 ps) to ESD and lightning-induced transients. Its unidirectional configuration provides low-leakage forward conduction path while blocking reverse surges up to 130V DC.
The device complies with IEC 61000-4-2 (ESD) and IEC 61000-4-5 (surge) immunity standards when properly laid out with minimal trace inductance. Clamping performance is specified under standardized 8.3/50μs waveform conditions with 4-pulse-per-minute duty cycle limitation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 400W - sustains single 8.3ms surge without failure under JEDEC test conditions |
| Reverse Standoff Voltage | 130V - maximum continuous DC voltage before significant leakage begins |
| Breakdown Voltage | 144–159V @ 1mA - ensures reliable triggering above system operating voltage |
| Clamping Voltage | 209V @ 1.9A - limits transient voltage seen by downstream circuitry |
| Leakage Current | ≤5.0μA @ 130V - negligible standby power loss in high-impedance bias networks |
| Operating Temperature | –55°C to +150°C - supports deployment in automotive engine compartments and industrial PLCs |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, molded plastic case with UL 94V-0 flammability rating and cathode band polarity indicator. Dimensions: 4.00–4.60mm (L) × 2.29–2.92mm (W) × 1.27–1.63mm (H).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to ground or low-side return path in unidirectional clamp configuration |
| Cathode | Reverse-biased surge input terminal | Connected to protected line (e.g., 12V rail or RS-485 A/B); marked with band |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR over temperature and long-term reliability in humid environments |
| 400W peak pulse rating | Withstands IEC 61000-4-5 Level 3 (1kV/2Ω) surges on 24V/48V industrial buses |
| SMA package thermal performance | 1.0W steady-state dissipation at 75°C lead temperature enables compact board layout |
| RoHS-compliant matte tin plating | Compatible with lead-free reflow profiles and eliminates post-solder cleaning requirements |
Applications
| Industrial Power Input Protection | Telecom Interface Surge Suppression |
|---|---|
Use Scenario: 24V DC input stage of programmable logic controller (PLC) exposed to load dump and inductive switching transients. IC Role / Device Role / Timing Role: Primary clamping element placed upstream of DC-DC converter input filter. Use Value: Limits transient voltage to ≤209V, protecting 36V-rated input capacitors and MOSFET gate drivers. | Use Scenario: RS-485 data line in outdoor base station equipment subject to lightning-induced common-mode surges. IC Role / Device Role / Timing Role: Unidirectional TVS on each differential line referenced to local ground plane. Use Value: Clamps 1kV/2Ω surge to <210V within nanoseconds, preserving transceiver ESD tolerance margin. |
| Automotive Body Control Module | Medical Equipment AC/DC Adapter Input |
Use Scenario: 12V battery-fed body control module subjected to ISO 7637-2 pulse 1 (inductive kick) and pulse 5a (load dump). IC Role / Device Role / Timing Role: First-line transient suppressor on main power rail before fuse and pre-regulator. Use Value: Absorbs 400W peak energy without degradation, maintaining system uptime during vehicle cranking events. | Use Scenario: Secondary-side DC output of medical-grade AC/DC adapter requiring IEC 60601-1 surge immunity. IC Role / Device Role / Timing Role: Final-stage overvoltage clamp on regulated 5V/12V outputs feeding sensitive analog front-ends. Use Value: Prevents latch-up in ADC reference buffers by limiting transient overshoot to safe margin below absolute max ratings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ130A-TP from Microchip | Same VRWM (130V), slightly higher VC (212V @ 1.9A), identical SMA package | Higher clamping voltage reduces margin for 13.8V-rated downstream components | Select if sourcing diversity required and clamping margin allows ≥3V headroom |
| P6SMB130A from Vishay | Same electrical specs, but SMB package (larger footprint, higher thermal mass) | SMB requires PCB area increase and alters layout parasitics in high-frequency surge paths | Prefer for designs needing higher steady-state power handling (>1.2W) or legacy footprint compatibility |
Compared with SMAJ130A-13, the Microchip alternative trades 3V higher clamping for supply-chain redundancy, while the Vishay SMB variant offers better thermal robustness at the cost of board space and layout revision - both require verification of layout-induced inductance impact on clamping speed.
Availability
SMAJ130A-13 is available at Aetrix Electronics and suitable for industrial power input protection, telecom interface surge suppression, automotive body control modules, and medical equipment AC/DC adapter inputs requiring stable component supply across extended production lifecycles.
Supply support for SMAJ130A-13 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design and manufacturing operations across Asia and the Americas.
The SMAJ series belongs to Diodes' transient voltage suppression portfolio, engineered specifically for high-reliability DC power line and interface protection in harsh industrial and automotive environments.
FAQ
What is the polarity configuration of SMAJ130A-13?
SMAJ130A-13 is a unidirectional TVS diode, indicated by the absence of the "C" suffix. It conducts in forward bias like a standard diode and clamps reverse transients above its breakdown voltage. The cathode is marked with a band and must be connected to the protected line; anode connects to ground or return path.
Can SMAJ130A-13 be used in bidirectional signal lines like RS-485?
No - SMAJ130A-13 is unidirectional and unsuitable for bidirectional AC-coupled or differential signal lines without external biasing. For RS-485, use the bidirectional variant SMAJ130CA-13, which lacks polarity marking and clamps both positive and negative transients symmetrically around 0V.
How does ambient temperature affect its surge capability?
Per Figure 1 in DS19005, peak pulse power derates linearly above 25°C ambient: at 75°C, only ~65% of 400W (≈260W) is sustainable. This directly reduces maximum clamping current - e.g., 1.9A at 25°C drops to ~1.2A at 100°C ambient - requiring thermal-aware layout and derated system-level surge testing.
Is SMAJ130A-13 compatible with lead-free reflow processes?
Yes - it features matte tin plating compliant with RoHS Directive 2011/65/EU and qualified for standard Pb-free reflow profiles (peak temperature ≤260°C, 60–90 seconds above 217°C). No special prebake or moisture sensitivity handling is required (MSL Level 1 per J-STD-020C).
SMAJ130A-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- DO-214AC, SMA
- Series:
- -
- 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):
- 1.9A
- 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:
- SMA
SMAJ130A-13 FAQ
1.How can I place an order for SMAJ130A-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMAJ130A-13 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-13 reliable?
The price and inventory of SMAJ130A-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMAJ130A-13 is usually 5 days.
3.What payment methods are accepted for SMAJ130A-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMAJ130A-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMAJ130A-13?
SMAJ130A-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMAJ130A-13 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-13?
For technical support, including SMAJ130A-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMAJ130A-13 requirements.
6.How does Aetrix verify that SMAJ130A-13 is sourced from the original manufacturer or authorized distributors?
All SMAJ130A-13 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-13 meets industry standards.
7.What is the process for return or replacement of SMAJ130A-13?
All SMAJ130A-13 units undergo pre-shipment inspection (PSI). If there is an issue with SMAJ130A-13, 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-13 part is unused and in its original packaging.
Return procedure for SMAJ130A-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMAJ130A-13 Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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