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Vishay General Semiconductor - Diodes Division SMF58A-HM3-08
- Part No.:
- SMF58A-HM3-08
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-219AB
- Datasheet:
-
SMF58A-HM3-08.pdf
- Description:
- TVS DIODE 58VWM 95VC SMF
- Quantity:
- Payment:
- Shipping:
Inventory:8,115
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Product details
Overview
SMF58A-HM3-08 from Vishay Semiconductors is a unidirectional surface-mount ESD protection diode in the SMF (DO-219AB) package, designed for high-energy transient suppression in data lines and power rails. It features a 58 V stand-off voltage (VRWM), 95 A peak pulse current (IPPM) at 10/1000 μs, 95 V maximum clamping voltage (VC), ±30 kV IEC 61000-4-2 ESD immunity, and 144 pF typical capacitance at 1 MHz - optimized for USB 2.0, HDMI, and automotive infotainment interfaces.
For engineers reviewing the SMF58A-HM3-08 datasheet, SMF58A-HM3-08 pinout, SMF58A-HM3-08 application, or SMF58A-HM3-08 equivalent, key selection criteria include clamping voltage margin relative to protected IC VCC, low capacitance for signal integrity, AEC-Q101 qualification for automotive use, and SOD-123W-compatible footprint compatibility with automated assembly.
Technical Context
This device operates as a single-channel unidirectional TVS diode, leveraging silicon avalanche breakdown to clamp transients above its reverse standoff voltage. Its low incremental surge resistance ensures rapid voltage limiting during fast-rising ESD events (0.7–1 ns rise time), while maintaining stable leakage (<0.1 μA at VRWM) across -65 °C to +175 °C operating range.
The SMF58A-HM3-08 integrates "Low Noise" fast-response technology and is qualified to AEC-Q101 for automotive applications. It supports wave and reflow soldering per J-STD-020 MSL level 1, with peak temperature tolerance up to 260 °C and thermal resistance RthJA of 180 K/W on standard epoxy-glass PCBs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Stand-off Voltage (VRWM) | 58 V - defines maximum continuous reverse operating voltage before clamping begins; sets safe margin below protected circuit's max rail voltage. |
| Clamping Voltage (VC) | 95 V max at IPPM = 95 A - limits transient voltage seen by downstream ICs; critical for ensuring I/O pin survival under IEC 61000-4-5 surges. |
| Peak Pulse Current (IPPM) | 95 A at 10/1000 μs - quantifies surge-handling capability; enables robust protection against lightning-induced or inductive-switching transients. |
| Capacitance (CD) | 144 pF at VR = 0 V, f = 1 MHz - impacts high-speed signal integrity; suitable for ≤480 Mbps interfaces like USB 2.0 but not USB 3.0 or PCIe. |
| ESD Withstand | ±30 kV contact / ±30 kV air per IEC 61000-4-2 - exceeds industrial and automotive ESD immunity requirements for exposed connectors and buttons. |
| Operating Temp Range | -65 °C to +175 °C - supports under-hood automotive, industrial control, and aerospace environments without derating. |
Pinout & Package
SMF58A-HM3-08 uses the DO-219AB (SMF) package: low-profile (1.08 mm height), SOD-123W-compatible outline, molded UL 94 V-0 compound, MSL level 1, and cathode-bar marked top-side orientation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input/Line side | Connected to signal or power line requiring protection; conducts during forward surge or bidirectional variants (not applicable here). |
| Cathode | Ground reference | Connected to system ground or low-impedance return path; defines unidirectional clamping direction from line to ground. |
Key Features
| Feature | Design Value |
|---|---|
| 200 W peak pulse power (10/1000 μs) | Enables reliable protection against repetitive EFT bursts without thermal runaway in compact layouts. |
| AEC-Q101 qualified | Validated for automotive-grade reliability including HTOL, temperature cycling, and mechanical shock - required for ADAS and infotainment modules. |
| "Low Noise" fast response | Sub-nanosecond turn-on ensures clamping initiates before sensitive ICs experience overvoltage stress during ESD events. |
| SOD-123W/SOD-123F compatible footprint | Allows drop-in replacement or layout reuse across Vishay's SMF and legacy SOD-123 families without PCB redesign. |
Applications
| Automotive Infotainment | Industrial HMI Interfaces |
|---|---|
Use Scenario: HDMI and USB 2.0 ports on head units exposed to ESD during cable insertion or user touch. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between connector and SoC I/O pins to shunt ESD energy to chassis ground. Use Value: 95 V clamping voltage provides >15% margin above HDMI 5 V supply and 144 pF avoids signal degradation at 480 Mbps. | Use Scenario: Touchscreen controller and button inputs on factory HMIs subject to operator ESD and relay-induced transients. IC Role / Device Role / Timing Role: Line-to-ground transient suppressor on I²C, UART, and GPIO traces interfacing microcontrollers and sensors. Use Value: -65 °C to +175 °C operation ensures reliability in uncontrolled ambient environments; ±30 kV ESD rating exceeds IEC 61000-6-2 industrial immunity requirements. |
| Telecom Power Rails | Medical Diagnostic Port Protection |
Use Scenario: 48 V DC power input on PoE-powered telecom equipment subjected to lightning-induced surges. IC Role / Device Role / Timing Role: Primary overvoltage clamp on secondary-side DC bus, coordinated with upstream MOVs and fuses. Use Value: 95 A IPPM and 1000 W peak power (8/20 μs) enable coordination with Class II surge protectors per IEC 61000-4-5. | Use Scenario: ECG and ultrasound probe connectors requiring biocompatible, low-leakage transient protection compliant with IEC 60601-1-2. IC Role / Device Role / Timing Role: Patient-isolation boundary TVS on analog front-end inputs, selected for <0.1 μA IR at 58 V to avoid signal offset errors. Use Value: Low leakage and AEC-Q101 qualification support long-term stability and regulatory traceability in safety-critical medical subsystems. |
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 | Higher clamping voltage (93.6 V vs. 95 V), larger SMA package (4.5 × 2.7 mm vs. 3.9 × 1.9 mm), same VRWM and IPPM. | Less suitable for space-constrained USB/HDMI layouts; better for higher-power industrial rails where footprint is less critical. | Select SMAJ58A-E3/5A only when board area allows larger package and thermal mass improves sustained surge handling. |
| TPD4E05U06DQAR | Quad-channel, 5.5 V VRWM, 0.5 pF per channel, integrated ESD array - not voltage-matched; requires redesign for 58 V systems. | Designed for high-speed digital buses (USB 3.1, DisplayPort); incompatible with 48–58 V power/data line protection. | TPD4E05U06DQAR is not a functional substitute for SMF58A-HM3-08; use only in low-voltage, multi-line signal protection contexts. |
Compared with SMAJ58A-E3/5A and TPD4E05U06DQAR, SMF58A-HM3-08 uniquely balances 58 V standoff, ultra-compact DO-219AB footprint, and automotive-grade AEC-Q101 qualification - making it optimal for space-limited, high-reliability 48–58 V interface protection where low capacitance and proven field performance are mandatory.
Availability
SMF58A-HM3-08 is available at Aetrix Electronics and suitable for automotive infotainment, industrial HMI, and telecom power rail applications requiring stable component supply, AEC-Q101 compliance, and consistent lead-time performance.
Supply support for SMF58A-HM3-08 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 Intertechnology is a global semiconductor manufacturer specializing in discrete components, sensors, and passive elements, with leadership in power management, signal conditioning, and protection technologies.
The SMF series is part of Vishay's eSMP® family, engineered specifically for high-reliability, surface-mount ESD and surge protection in automotive, industrial, and communications systems where miniaturization and AEC-Q101 validation are essential.
FAQ
What is the clamping voltage of SMF58A-HM3-08 at its rated peak pulse current?
The SMF58A-HM3-08 has a maximum reverse clamping voltage (VC) of 95 V at IPPM = 95 A with a 10/1000 μs waveform. This value is measured under standardized surge conditions and defines the upper voltage limit imposed on protected circuits during transient events. The SMF58A-HM3-08 maintains this clamping performance across its full operating temperature range (-65 °C to +175 °C), ensuring consistent protection in harsh environments.
Is SMF58A-HM3-08 qualified for automotive applications?
Yes, SMF58A-HM3-08 is AEC-Q101 qualified, having passed stress tests including high-temperature operating life, temperature cycling, and mechanical shock. This qualification confirms its suitability for automotive applications such as infotainment systems, body control modules, and ADAS sensor interfaces. The SMF58A-HM3-08 meets the reliability and environmental requirements defined in the AEC-Q101 standard for discrete semiconductors used in vehicles.
What package type does SMF58A-HM3-08 use, and is it compatible with standard SMT processes?
SMF58A-HM3-08 uses the DO-219AB (SMF) package - a low-profile, surface-mount outline measuring 3.9 mm × 1.9 mm × 1.08 mm, compatible with SOD-123W, SOD-123F, and SOD-123FL footprints. It is fully wave and reflow solderable, rated for peak temperatures up to 260 °C per J-STD-020, and classified as MSL level 1, meaning it can be stored indefinitely without dry-pack requirements. The SMF58A-HM3-08 supports high-yield automated assembly in volume production.
How does the capacitance of SMF58A-HM3-08 affect high-speed signal lines?
The SMF58A-HM3-08 exhibits 144 pF typical junction capacitance at 0 V bias and 1 MHz, which is appropriate for interfaces up to 480 Mbps (e.g., USB 2.0 and HDMI 1.4). This capacitance introduces minimal signal attenuation and jitter in these applications but is too high for USB 3.0 (5 Gbps) or PCIe Gen 3+ links, where sub-1 pF devices are required. Designers must verify eye diagram integrity when using SMF58A-HM3-08 on high-speed traces.
What is the maximum continuous reverse leakage current of SMF58A-HM3-08 at its stand-off voltage?
At VRWM = 58 V and Tamb = 25 °C, the SMF58A-HM3-08 specifies a maximum reverse leakage current (IR) of 0.1 μA. This ultra-low leakage preserves signal integrity and minimizes power loss in battery-operated or precision analog circuits. The SMF58A-HM3-08 maintains leakage below 1 μA even at elevated temperatures up to +125 °C, supporting stable operation in thermally demanding applications.
SMF58A-HM3-08 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-HM3-08 FAQ
1.How can I place an order for SMF58A-HM3-08 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMF58A-HM3-08 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-HM3-08 reliable?
The price and inventory of SMF58A-HM3-08 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMF58A-HM3-08 is usually 5 days.
3.What payment methods are accepted for SMF58A-HM3-08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMF58A-HM3-08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMF58A-HM3-08?
SMF58A-HM3-08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMF58A-HM3-08 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-HM3-08?
For technical support, including SMF58A-HM3-08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMF58A-HM3-08 requirements.
6.How does Aetrix verify that SMF58A-HM3-08 is sourced from the original manufacturer or authorized distributors?
All SMF58A-HM3-08 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-HM3-08 meets industry standards.
7.What is the process for return or replacement of SMF58A-HM3-08?
All SMF58A-HM3-08 units undergo pre-shipment inspection (PSI). If there is an issue with SMF58A-HM3-08, 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-HM3-08 part is unused and in its original packaging.
Return procedure for SMF58A-HM3-08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMF58A-HM3-08 Tags
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