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Vishay General Semiconductor - Diodes Division SMF13A-HE3-08
- Part No.:
- SMF13A-HE3-08
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-219AB
- Datasheet:
-
SMF13A-HE3-08.pdf
- Description:
- TVS DIODE 13VWM 21.5VC DO219AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,632
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Product details
Overview
SMF13A-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. It features a 13 V stand-off voltage (VRWM), 21.5 V maximum clamping voltage at 9.3 A peak pulse current, ±30 kV IEC 61000-4-2 ESD immunity, and 200 W peak pulse power (10/1000 μs). It is AEC-Q101 qualified and used in automotive infotainment USB interfaces.
For engineers reviewing the SMF13A-HE3-08 datasheet, SMF13A-HE3-08 pinout, SMF13A-HE3-08 application, or SMF13A-HE3-08 equivalent, key selection criteria include clamping voltage margin relative to IC I/O rails, capacitance impact on signal integrity, AEC-Q101 qualification status, 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 ESD events, while its "Low Noise" technology delivers sub-nanosecond response time.
The SMF13A-HE3-08 is optimized for bidirectional signal paths requiring asymmetric protection-cathode grounded, anode connected to protected line-and supports wave and reflow soldering per J-STD-020 MSL level 1 conditions up to 260 °C peak temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Stand-off Voltage (VRWM) | 13 V - Maximum continuous reverse voltage before significant leakage; sets minimum operating margin above 12 V automotive supply rails. |
| Clamping Voltage (VC) | 21.5 V max at 9.3 A - Peak voltage seen by protected IC during 10/1000 μs surge; must stay below absolute maximum rating of downstream IC. |
| Peak Pulse Power | 200 W (10/1000 μs) - Sustains defined surge energy without failure; validated per IEC 61000-4-5 waveform. |
| ESD Immunity | ±30 kV contact / ±30 kV air - Meets highest IEC 61000-4-2 level; eliminates need for secondary board-level ESD mitigation. |
| Junction Temp Range | –65 °C to +175 °C - Enables operation in under-hood automotive environments and industrial control enclosures. |
| Capacitance | 423 pF at 0 V - Impacts high-frequency signal integrity; suitable for USB 2.0 (480 Mbps) but not USB 3.x or HDMI. |
| AEC-Q101 Qualified | Yes - Certified for automotive electronics per stress test requirements including HBM >8 kV, ensuring reliability in vehicle ECUs. |
Pinout & Package
SMF13A-HE3-08 uses the DO-219AB (SMF) package: low-profile (1.08 mm height), 3.9 mm × 1.9 mm footprint, cathode-bar marked, compatible with SOD-123W land pattern. Mold compound is UL 94 V-0 rated; moisture sensitivity level is J-STD-020 MSL level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (A) | Protected Line Input | Connected to signal line (e.g., USB D+); conducts transient current to cathode when voltage exceeds VRWM. |
| Cathode (K) | Ground Reference | Connected to system ground plane; provides low-impedance return path for surge current; polarity-critical for unidirectional operation. |
Key Features
| Feature | Design Value |
|---|---|
| 200 W Peak Pulse Power (10/1000 μs) | Withstands repeated ESD surges without degradation-critical for production test environments and field-replaceable modules. |
| ±30 kV IEC 61000-4-2 ESD Rating | Eliminates need for external spark gaps or multi-stage protection in cost-sensitive automotive body control modules. |
| Low Clamping Voltage (21.5 V) | Provides 2.5× margin over 12 V nominal rail-ensures safe operation of 24 V tolerant CAN transceivers and LIN bus ICs. |
| SOD-123W-Compatible Footprint | Enables drop-in replacement with legacy SOD-123 devices in existing PCB layouts-no redesign required for footprint migration. |
| AEC-Q101 Qualification | Validated for automotive-grade reliability including temperature cycling, mechanical shock, and HBM testing-required for Tier-1 supplier BOMs. |
Applications
| Automotive USB Port Protection | Industrial CAN Bus Interface |
|---|---|
Use Scenario: Protecting USB 2.0 ports in vehicle infotainment head units exposed to user-hand ESD events during plug/unplug cycles. IC Role / Device Role: Unidirectional TVS diode placed between USB D+ line and chassis ground, clamping transients before they reach the USB PHY IC. Use Value: Prevents latch-up or permanent damage to USB transceivers by limiting voltage to ≤21.5 V during ±30 kV contact discharge events. | Use Scenario: Safeguarding CAN_H/CAN_L differential pair inputs in engine control units subjected to load dump and ISO 7637-2 pulses. IC Role / Device Role: Standalone transient suppressor on each CAN line, referenced to ground, providing fast response to coupled EFT bursts. Use Value: Maintains CAN signal integrity by limiting clamping voltage to 21.5 V while adding only 423 pF parasitic capacitance-within CAN FD timing budget. |
| Medical Patient Monitor Data Ports | Smart Building RS-485 Node Protection |
Use Scenario: Shielding serial communication lines (e.g., UART-to-USB bridges) in portable diagnostic devices handling frequent cable hot-plug operations. IC Role / Device Role: Single-line ESD clamp on TX/RX lines, mounted adjacent to connector to minimize trace inductance. Use Value: Achieves IEC 61000-4-2 Level 4 compliance without increasing board area-enabled by 1.08 mm profile and MSL level 1 reflow compatibility. | Use Scenario: Protecting RS-485 transceiver inputs in HVAC controllers installed in electrically noisy commercial buildings with long cable runs. IC Role / Device Role: Point-of-entry TVS on A/B bus lines, grounded to local node ground to shunt induced surges from lightning-induced coupling. Use Value: Withstands 200 W surges per line while maintaining <1 μA leakage at 13 V-preserving bus bias stability and fail-safe idle state detection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ13A-E3/57T | Higher clamping voltage (23.2 V), larger SMA package (4.5 mm × 2.7 mm), same 13 V VRWM. | Less suitable for space-constrained automotive modules; higher thermal resistance (RthJA = 200 K/W vs. 180 K/W). | Select when legacy SMA footprint exists and lower capacitance (367 pF) is prioritized over size. |
| TPD2E001DRYR | Bi-directional dual-channel array (2 lines), 12 pF capacitance, 15 V VRWM, not AEC-Q101 qualified. | Designed for high-speed digital interfaces (HDMI, USB 3.0); lacks automotive qualification and single-line surge rating. | Select for consumer electronics with multi-line protection needs where low capacitance outweighs automotive compliance. |
Compared with SMAJ13A-E3/57T and TPD2E001DRYR, the SMF13A-HE3-08 uniquely balances AEC-Q101 qualification, compact DO-219AB footprint, and 423 pF capacitance-making it optimal for automotive USB and CAN nodes where space, reliability, and moderate bandwidth coexist.
Availability
SMF13A-HE3-08 is available at Aetrix Electronics and suitable for automotive infotainment systems, industrial CAN networks, medical patient monitor interfaces, and smart building RS-485 nodes requiring stable component supply across extended product lifecycles.
Supply support for SMF13A-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 Intertechnology is a global semiconductor manufacturer specializing in discrete components, sensors, and passive elements, with leadership in TVS diodes, MOSFETs, and precision resistors.
The SMF series targets automotive and industrial ESD protection, engineered for high-reliability transient suppression in harsh environments where AEC-Q101 compliance and low-profile mounting are mandatory.
FAQ
What is the maximum clamping voltage of the SMF13A-HE3-08 under standard test conditions?
The SMF13A-HE3-08 has a maximum clamping voltage (VC) of 21.5 V when subjected to a 10/1000 μs surge current of 9.3 A. This value is measured per IEC 61000-4-5 and defines the upper voltage limit imposed on protected circuitry during transient events. The SMF13A-HE3-08 maintains this clamping performance across its full operating temperature range of –65 °C to +175 °C.
Is the SMF13A-HE3-08 qualified for automotive applications?
Yes, the SMF13A-HE3-08 is AEC-Q101 qualified, having passed stress tests including human body model (HBM) >8 kV, temperature cycling, and mechanical shock. It is rated for operation from –65 °C to +175 °C and is commonly deployed in automotive infotainment, body control modules, and CAN/LIN interface protection. The SMF13A-HE3-08 meets the reliability requirements for Tier-1 automotive supply chains.
What is the typical junction capacitance of the SMF13A-HE3-08 at zero bias?
The SMF13A-HE3-08 exhibits a typical junction capacitance (CD) of 423 pF at 0 V reverse bias and 1 MHz frequency. This value is confirmed in Vishay's electrical characteristics table and impacts high-speed signal integrity-making the SMF13A-HE3-08 suitable for USB 2.0 (480 Mbps) but not recommended for USB 3.x or HDMI 1.4+ interfaces where sub-2 pF is typically required.
Does the SMF13A-HE3-08 have polarity marking, and how is it identified?
Yes, the SMF13A-HE3-08 uses a cathode bar marking on the package body to indicate polarity. Per Vishay's documentation, the bar corresponds to the cathode terminal, which must be connected to system ground. The anode is the unmarked end. This marking aligns with DO-219AB package orientation standards and is visible in top-view tape diagrams-ensuring correct placement during automated pick-and-place assembly of the SMF13A-HE3-08.
What packaging options are available for the SMF13A-HE3-08?
The SMF13A-HE3-08 is supplied in 8 mm carrier tape on 7-inch reels (3,000 units per reel, MOQ = 30,000) and 13-inch reels (10,000 units per reel, MOQ = 50,000). Both formats comply with EIA-481 standards and feature standardized orientation with cathode facing the sprocket holes. The "HE3-08" suffix explicitly denotes the RoHS-compliant, lead-free, tin-plated termination version in 7-inch tape packaging-the exact configuration stocked and distributed by Aetrix Electronics as SMF13A-HE3-08.
SMF13A-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):
- 13V
- Voltage - Breakdown (Min):
- 14.4V
- Voltage - Clamping (Max) @ Ipp:
- 21.5V
- Current - Peak Pulse (10/1000µs):
- 9.3A
- Power - Peak Pulse:
- 200W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- 423pF @ 1MHz
- Operating Temperature:
- -65°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-219AB (SMF)
SMF13A-HE3-08 FAQ
1.How can I place an order for SMF13A-HE3-08 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMF13A-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 SMF13A-HE3-08 reliable?
The price and inventory of SMF13A-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 SMF13A-HE3-08 is usually 5 days.
3.What payment methods are accepted for SMF13A-HE3-08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMF13A-HE3-08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMF13A-HE3-08?
SMF13A-HE3-08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMF13A-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 SMF13A-HE3-08?
For technical support, including SMF13A-HE3-08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMF13A-HE3-08 requirements.
6.How does Aetrix verify that SMF13A-HE3-08 is sourced from the original manufacturer or authorized distributors?
All SMF13A-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 SMF13A-HE3-08 meets industry standards.
7.What is the process for return or replacement of SMF13A-HE3-08?
All SMF13A-HE3-08 units undergo pre-shipment inspection (PSI). If there is an issue with SMF13A-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 SMF13A-HE3-08 part is unused and in its original packaging.
Return procedure for SMF13A-HE3-08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMF13A-HE3-08 Tags
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