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Vishay General Semiconductor - Diodes Division SMF58A-HE3-08
- Part No.:
- SMF58A-HE3-08
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-219AB
- Datasheet:
-
SMF58A-HE3-08.pdf
- Description:
- TVS DIODE 58VWM 95VC SMF
- Quantity:
- Payment:
- Shipping:
Inventory:5,395
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Product details
Overview
SMF58A-HE3-08 from Vishay Semiconductors is a unidirectional surface-mount ESD protection diode in the SMF (DO-219AB) package, designed for transient voltage suppression in high-speed data lines and power rails. It features a 58 V stand-off voltage (VRWM), 64.4–70.8 V reverse breakdown range (VBR), 95 V maximum clamping voltage at 2.1 A peak pulse current (IPPM), ±30 kV IEC 61000-4-2 ESD immunity, and 144 pF typical junction capacitance at 0 V - optimized for USB 2.0, HDMI, and automotive infotainment interfaces.
For engineers reviewing the SMF58A-HE3-08 datasheet, SMF58A-HE3-08 pinout, SMF58A-HE3-08 application, or SMF58A-HE3-08 equivalent, this device is selected for robust electrostatic discharge protection in space-constrained, high-reliability PCB layouts where low clamping voltage, fast response time, and AEC-Q101 qualification are required.
Technical Context
This unidirectional TVS diode operates as a clamping device in parallel with sensitive circuit nodes, triggering when transient voltage exceeds its reverse standoff rating (58 V) and limiting downstream voltage to ≤95 V under 2.1 A 10/1000 μs surge. Its low incremental surge resistance ensures minimal voltage overshoot during fast transients.
Designed for IEC 61000-4-2 and IEC 61000-4-5 compliance, it delivers 200 W peak pulse power (10/1000 μs), 1000 W (8/20 μs), and supports reflow/wave soldering per J-STD-020 MSL level 1 - making it suitable for automated assembly in automotive and industrial control modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Stand-off Voltage (VRWM) | 58 V - maximum continuous reverse operating voltage before clamping begins |
| Reverse Breakdown (VBR) | 64.4–70.8 V at 1 mA - precise threshold for reliable transient detection |
| Clamping Voltage (VC) | 95 V at IPPM = 2.1 A (10/1000 μs) - limits protected IC voltage to safe levels |
| Junction Capacitance (CD) | 144 pF at 0 V, 1 MHz - low enough for USB 2.0 (480 Mbps) signal integrity |
| ESD Immunity | ±30 kV contact & air discharge (IEC 61000-4-2) - exceeds automotive ESD requirements |
| Peak Pulse Power | 200 W (10/1000 μs); 1000 W (8/20 μs) - handles both ESD and lightning-induced surges |
| AEC-Q101 Qualified | Yes - validated for automotive under-hood and infotainment applications |
Pinout & Package
SMF58A-HE3-08 is housed in the DO-219AB (SMF) package: low-profile (1.08 mm max height), SOD-123W-compatible outline, cathode-bar marked, with 3.9 mm × 1.9 mm footprint and 15 mg weight. Designed for automated placement and reflow soldering per JEDEC J-STD-020 MSL level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input/Line side | Connected to protected signal or power line; conducts during forward surge events |
| Cathode | Ground reference | Connected to system ground or low-impedance return path; defines unidirectional clamping polarity |
Key Features
| Feature | Design Value |
|---|---|
| "Low Noise" fast-response technology | Sub-nanosecond response enables effective suppression of ESD transients before IC damage occurs |
| Low incremental surge resistance | Minimizes clamping voltage overshoot during high-di/dt events, improving protection margin |
| AEC-Q101 qualified | Validated for automotive temperature cycling, humidity, and mechanical stress per AEC standard |
| SOD-123W/SOD-123F compatible footprint | Enables drop-in replacement or layout reuse across Vishay's SMF and legacy SOD-123 families |
Applications
| USB 2.0 Interface Protection | HDMI Signal Line Protection |
|---|---|
Use Scenario: Protecting D+ and D− differential pairs in portable USB peripherals against ESD events during hot-plug insertion. IC Role / Device Role / Timing Role: Unidirectional clamping diode placed between data line and chassis ground to shunt ESD current away from USB transceiver. Use Value: 144 pF capacitance preserves signal rise/fall times; 95 V clamping prevents USB PHY latch-up or oxide damage. | Use Scenario: Safeguarding TMDS clock and data channels in automotive head units exposed to repeated connector mating cycles. IC Role / Device Role / Timing Role: Standoff-rated TVS on each TMDS pair to clamp transients without degrading 165 MHz pixel clock integrity. Use Value: 58 V VRWM avoids false triggering during normal HDMI DC bias; ±30 kV ESD rating meets ISO 10605 requirements. |
| Automotive Infotainment Power Rail | Industrial CAN FD Transceiver Protection |
Use Scenario: Suppressing load-dump and jump-start induced transients on 12 V supply rails feeding display controllers and audio amplifiers. IC Role / Device Role / Timing Role: Parallel-connected TVS on VCC input to absorb 1000 W (8/20 μs) surges per ISO 7637-2 Pulse 5a. Use Value: 1000 W peak power rating and 175 °C junction temperature support sustained operation in under-dash environments. | Use Scenario: Protecting CAN FD transceiver pins (CANH/CANL) from ESD during service port access in factory automation gateways. IC Role / Device Role / Timing Role: Bidirectional-capable layout using two unidirectional SMF58A-HE3-08 devices (anode-to-anode) for symmetrical clamping. Use Value: Low clamping voltage (95 V) prevents transceiver overvoltage lockup; AEC-Q101 qualification ensures reliability in harsh plant-floor conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ58A-E3/5A | DO-214AC (SMA) package; 1.9 mm height vs. SMF's 1.08 mm; 1000 W peak power same, but higher thermal resistance (RthJA = 40°C/W vs. 180°C/W) | Less suitable for ultra-thin mobile or automotive modules due to taller profile and lower power density | Select SMAJ58A-E3/5A only if board height allows ≥1.9 mm and thermal management permits higher junction temp rise |
| TPSMD58A | Same DO-219AB package; identical VRWM (58 V), VC (95 V), and CD (144 pF); not AEC-Q101 qualified | Lacks automotive qualification; limited to commercial/industrial use where AEC validation is not mandated | Choose TPSMD58A for cost-sensitive non-automotive designs requiring identical electrical performance and footprint |
Compared with SMAJ58A-E3/5A and TPSMD58A, SMF58A-HE3-08 uniquely combines AEC-Q101 qualification, ultra-low profile (1.08 mm), and industry-leading power density (200 W in DO-219AB), making it optimal for next-gen automotive electronics where space, reliability, and compliance are co-constrained.
Availability
SMF58A-HE3-08 is available at Aetrix Electronics and suitable for automotive infotainment systems, industrial USB host interfaces, and CAN FD gateway modules requiring stable component supply across extended production lifecycles.
Supply support for SMF58A-HE3-08 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 Semiconductors is a global leader in discrete semiconductors, specializing in high-reliability diodes, MOSFETs, optoelectronics, and passive components for automotive, industrial, and computing markets.
The SMF series targets high-speed interface and power rail protection, engineered specifically for AEC-Q101 compliance, low capacitance, and compact packaging in demanding automotive and industrial applications.
FAQ
What is the clamping voltage of SMF58A-HE3-08 at its rated peak pulse current?
The SMF58A-HE3-08 has a maximum clamping voltage (VC) of 95 V at its rated peak pulse current (IPPM) of 2.1 A under the 10/1000 μs waveform. This value is measured per IEC 61000-4-5 test conditions and ensures downstream ICs remain within safe operating voltage limits during surge events. The clamping performance is guaranteed across the full operating temperature range of −65 °C to +175 °C.
Is SMF58A-HE3-08 suitable for bidirectional signal lines like RS-485 or CAN?
SMF58A-HE3-08 is a unidirectional TVS diode and must be used in a back-to-back configuration (anode-to-anode) to protect bidirectional lines such as RS-485 or CAN FD. When paired with a second SMF58A-HE3-08, it provides symmetrical ±95 V clamping. For single-device bidirectional protection, Vishay offers the SMBJ58A variant - but SMF58A-HE3-08 remains preferred where ultra-low profile and AEC-Q101 qualification are mandatory.
Does SMF58A-HE3-08 meet automotive qualification standards?
Yes, SMF58A-HE3-08 is AEC-Q101 qualified, having passed stress tests including temperature cycling, humidity bias, mechanical shock, and ESD per human body model (H3B > 8 kV). This qualification confirms its suitability for automotive powertrain, body electronics, and infotainment systems where long-term reliability under thermal and vibration stress is critical. Full test reports are available upon request from Vishay.
What is the maximum operating temperature for SMF58A-HE3-08?
The SMF58A-HE3-08 supports an operating temperature range of −65 °C to +175 °C, with a maximum junction temperature (TJ) rating of 175 °C. This wide range enables deployment in under-hood automotive modules, industrial motor drives, and outdoor telecom equipment. Thermal design must account for RthJA = 180 K/W when mounted on 3 mm × 3 mm Cu pads per datasheet conditions.
How does the 144 pF junction capacitance of SMF58A-HE3-08 affect high-speed data lines?
The 144 pF typical junction capacitance of SMF58A-HE3-08 at 0 V is optimized for USB 2.0 (480 Mbps) and HDMI 1.4 (up to 3.4 Gbps) applications, where it introduces negligible signal distortion when placed with short trace lengths (<5 mm) and proper ground return. For PCIe Gen3+ or USB 3.2, lower-capacitance alternatives (e.g., <3 pF) are recommended - but SMF58A-HE3-08 remains appropriate for cost-sensitive, medium-speed interfaces requiring robust ESD hardness.
SMF58A-HE3-08 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-219AB
- Series:
- eSMP®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 58V
- Voltage - Breakdown (Min):
- 64.4V
- Voltage - Clamping (Max) @ Ipp:
- 95V
- Current - Peak Pulse (10/1000µs):
- 2.1A
- Power - Peak Pulse:
- 200W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- 144pF @ 1MHz
- Operating Temperature:
- -65°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-219AB (SMF)
SMF58A-HE3-08 FAQ
1.How can I place an order for SMF58A-HE3-08 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMF58A-HE3-08 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 SMF58A-HE3-08 reliable?
The price and inventory of SMF58A-HE3-08 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMF58A-HE3-08 is usually 5 days.
3.What payment methods are accepted for SMF58A-HE3-08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMF58A-HE3-08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMF58A-HE3-08?
SMF58A-HE3-08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMF58A-HE3-08 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 SMF58A-HE3-08?
For technical support, including SMF58A-HE3-08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMF58A-HE3-08 requirements.
6.How does Aetrix verify that SMF58A-HE3-08 is sourced from the original manufacturer or authorized distributors?
All SMF58A-HE3-08 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 SMF58A-HE3-08 meets industry standards.
7.What is the process for return or replacement of SMF58A-HE3-08?
All SMF58A-HE3-08 units undergo pre-shipment inspection (PSI). If there is an issue with SMF58A-HE3-08, 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 SMF58A-HE3-08 part is unused and in its original packaging.
Return procedure for SMF58A-HE3-08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMF58A-HE3-08 Tags
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