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Diodes Incorporated SMF4L130AQ-7
- Part No.:
- SMF4L130AQ-7
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-219AA
- Datasheet:
-
SMF4L130AQ-7.pdf
- Description:
- TRANSIENT VOLTAGE SUPPRESSOR PP
- Quantity:
- Payment:
- Shipping:
Inventory:2,834
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Product details
Overview
SMF4L130AQ-7 from Diodes Incorporated is a unidirectional 400W surface-mount transient voltage suppressor (TVS) diode with 130V working peak reverse voltage (VRWM), 144–159V breakdown voltage (VBR), and 209V maximum clamping voltage (VC) at 1.9A surge current. It delivers IEC61000-4-2 ±30kV ESD protection and is AEC-Q101 qualified for automotive power line and battery contact surge suppression.
For engineers reviewing the SMF4L130AQ-7 datasheet, SMF4L130AQ-7 pinout, SMF4L130AQ-7 application, or SMF4L130AQ-7 equivalent, key selection criteria include clamping voltage margin relative to system rail, unidirectional polarity for DC-biased lines, DO-219AA footprint compatibility, and AEC-Q101 qualification for under-hood automotive use.
Technical Context
This TVS operates as a fast-acting shunt protector in parallel with sensitive circuitry, triggering when transient voltage exceeds its VBR and clamping to VC within <1.0ns. Its unidirectional configuration enables use on DC power rails where reverse blocking is required, such as 12V/24V automotive supply lines.
The device leverages silicon avalanche junction design with low dynamic impedance to maintain stable clamping across 1.9A–43.8A surge range (10/1000µs waveform). Thermal resistance of 96°C/W (junction-to-ambient) supports operation up to +175°C ambient when mounted per recommended FR-4 pad layout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 400W (10/1000µs waveform); sustains single high-energy transients without failure |
| Working Peak Reverse Voltage (VRWM) | 130V; maximum continuous DC or RMS voltage before conduction begins |
| Breakdown Voltage (VBR) | 144–159V @ 1mA; defines precise turn-on threshold for overvoltage events |
| Maximum Clamping Voltage (VC) | 209V @ 1.9A; limits downstream voltage stress during surge |
| ESD Rating | ±30kV air/contact per IEC61000-4-2; protects against human-body-model discharge events |
| AEC-Q101 Qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD stress |
| Package | DO-219AA; ultra-compact 2.8 × 1.9 mm SMD outline with cathode band marking |
Pinout & Package
DO-219AA package: surface-mount, two-terminal, molded plastic case with matte tin-plated copper alloy leadframe; cathode band denotes unidirectional polarity; moisture sensitivity level 1 (J-STD-020).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection point | Connected to ground or low-potential node; completes shunt path during clamping |
| Cathode | High-side connection point | Connected to protected line (e.g., 130V rail); marked by visible band on package top |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-fast response time | <1.0ns turn-on (0V to VBR), minimizing voltage overshoot on critical power rails |
| Green compound packaging | Halogen- and antimony-free molding compound (Br+Cl <1500ppm, Sb <1000ppm), RoHS 3 compliant |
| Automotive change control | PPAP-capable manufacturing in IATF 16949-certified facilities with full traceability |
| Low leakage current | 1.9µA max at VRWM = 130V, reducing standby power loss in always-on systems |
| Thermal robustness | Operating range −55°C to +175°C; suitable for engine bay and powertrain electronics |
Applications
| Automotive Power Distribution | Battery Management Systems |
|---|---|
Use Scenario: Protection of 12V/24V supply lines feeding ECUs, lighting modules, and infotainment head units against load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Shunt TVS placed upstream of DC-DC converters and LDOs to clamp transients before they reach regulation circuitry. Use Value: 209V clamping ensures downstream ICs rated for 200V absolute maximum survive 130V nominal rail surges. |
Use Scenario: Input protection on BMS front-end for 12S–16S Li-ion packs where cell stack voltages exceed 100V. IC Role / Device Role / Timing Role: Unidirectional TVS connected between pack positive and ground to absorb regenerative braking spikes and hot-plug transients. Use Value: 130V VRWM aligns with 12S nominal (48V) and 16S nominal (64V) stacks operating at elevated float voltages up to 128V. |
| Industrial Power Supplies | EV Charging Interface |
Use Scenario: Secondary-side overvoltage protection on 48V telecom or server PSUs exposed to lightning-induced surges on output distribution traces. IC Role / Device Role / Timing Role: Fast-clamping TVS placed at PSU output connector to limit fault voltage seen by downstream equipment. Use Value: 400W peak power rating handles repetitive 10/1000µs transients common in industrial environments without degradation. |
Use Scenario: DC link protection in AC/DC and DC/DC stages of EV on-board chargers handling 400–800V battery architectures. IC Role / Device Role / Timing Role: Cascaded TVS array using SMF4L130AQ-7 as mid-voltage stage to reduce clamping burden on primary 600V+ devices. Use Value: Precise 144–159V VBR enables tight coordination with higher-voltage TVS in multi-stage protection schemes. |
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 | Same VRWM (130V) and unidirectional topology, but SMA package (larger DO-214AC, 4.5×2.7mm) | Less space-constrained PCBs; lower thermal resistance (RθJA = 65°C/W) but no AEC-Q101 qualification | Select when board area allows larger footprint and automotive qualification is not required |
| SMCJ130A | Higher 1500W peak power rating, same VRWM, DO-214AB package (7.1×6.2mm) | Heavy-duty industrial surge protection; unsuitable for compact automotive modules due to size and weight | Select only when >400W pulse energy must be absorbed and DO-219AA's 2.8×1.9mm footprint is not mandatory |
Compared with SMAJ130A and SMCJ130A, SMF4L130AQ-7 provides the smallest footprint (DO-219AA), AEC-Q101 qualification, and optimized thermal performance for space-limited automotive power nodes - making it the preferred choice where miniaturization and automotive compliance are non-negotiable.
Availability
SMF4L130AQ-7 is available at Aetrix Electronics and suitable for automotive power distribution, battery management systems, and industrial power supplies requiring stable component supply, long-term lifecycle support, and AEC-Q101-compliant surge protection.
Supply support for SMF4L130AQ-7 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, specializing in high-reliability protection, signal integrity, and power management solutions for automotive, industrial, and computing markets.
The SMF4L series belongs to Diodes' AEC-Q101-qualified TVS portfolio designed specifically for compact, high-surge-capacity protection in next-generation automotive electronics and high-density power systems.
FAQ
What is the polarity configuration of SMF4L130AQ-7?
SMF4L130AQ-7 is a unidirectional TVS diode, indicated by the cathode band on the DO-219AA package. It conducts only when the cathode is at a higher potential than the anode, making it suitable for DC power rail protection where reverse voltage blocking is required.
Does SMF4L130AQ-7 meet automotive qualification standards?
Yes - SMF4L130AQ-7 is AEC-Q101 qualified, PPAP capable, and manufactured in IATF 16949 certified facilities. It has passed stress tests including high-temperature reverse bias (HTRB), temperature cycling, and ESD per AEC-Q101 requirements.
How does the DO-219AA package compare thermally to SMA or SMC packages?
DO-219AA offers a 2.8×1.9 mm footprint with RθJA = 96°C/W (on 1"×1" FR-4, 2 oz Cu). While larger SMA (65°C/W) and SMC (45°C/W) packages have lower thermal resistance, DO-219AA achieves optimal balance of miniaturization and thermal performance for space-constrained automotive modules.
Can SMF4L130AQ-7 be used in bidirectional signal-line protection?
No - SMF4L130AQ-7 is unidirectional only. For bidirectional signal-line protection (e.g., CAN, LIN), use the bi-directional variant SMF4L130CAQ-7, which lacks the cathode band and clamps symmetrically above and below ground.
SMF4L130AQ-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- DO-219AA
- Series:
- SMF4L
- 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):
- 1.9A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-219AA
SMF4L130AQ-7 FAQ
1.How can I place an order for SMF4L130AQ-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMF4L130AQ-7 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 SMF4L130AQ-7 reliable?
The price and inventory of SMF4L130AQ-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMF4L130AQ-7 is usually 5 days.
3.What payment methods are accepted for SMF4L130AQ-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMF4L130AQ-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMF4L130AQ-7?
SMF4L130AQ-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMF4L130AQ-7 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 SMF4L130AQ-7?
For technical support, including SMF4L130AQ-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMF4L130AQ-7 requirements.
6.How does Aetrix verify that SMF4L130AQ-7 is sourced from the original manufacturer or authorized distributors?
All SMF4L130AQ-7 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 SMF4L130AQ-7 meets industry standards.
7.What is the process for return or replacement of SMF4L130AQ-7?
All SMF4L130AQ-7 units undergo pre-shipment inspection (PSI). If there is an issue with SMF4L130AQ-7, 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 SMF4L130AQ-7 part is unused and in its original packaging.
Return procedure for SMF4L130AQ-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMF4L130AQ-7 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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Diodes Incorporated
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Diodes Incorporated
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onsemi
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Diodes Incorporated
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Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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