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Vishay SMF13A-HM3_A08
- Part No.:
- SMF13A-HM3_A08
- Manufacturer:
- Vishay
- Category:
- TVS Diodes
- Package:
- DO-219AB
- Datasheet:
-
SMF13A-HM3_A08.pdf
- Description:
- ESD PROTECTION DIODE SMF DO219AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,507
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Product details
Overview
SMF13A-HM3_A08 from Vishay Semiconductors is a unidirectional surface-mount ESD protection diode in the SMF (DO-219AB) package, designed for transient voltage suppression in low-capacitance signal lines. It features a 13 V standoff voltage (VRWM), 21.5 V maximum clamping voltage at 9.3 A peak pulse current, 423 pF typical capacitance at 0 V, ±30 kV IEC 61000-4-2 ESD immunity, and AEC-Q101 qualification for automotive use.
For engineers reviewing the SMF13A-HM3_A08 datasheet, SMF13A-HM3_A08 pinout, SMF13A-HM3_A08 application, or SMF13A-HM3_A08 equivalent, this device is selected for high-reliability ESD protection in USB 2.0, HDMI, automotive infotainment interfaces, and industrial sensor I/O where low clamping voltage and robust surge handling are critical.
Technical Context
The SMF13A-HM3_A08 operates as a unidirectional avalanche diode with a reverse standoff voltage of 13 V and breakdown voltage range of 14.4–16.0 V at 1 mA test current. Its low incremental surge resistance enables fast clamping response (<1 ns), limiting transient energy to protected ICs during ESD events per IEC 61000-4-2 and surge per IEC 61000-4-5 (1000 W at 8/20 μs).
It is housed in an SOD-123W-compatible DO-219AB package with MSL level 1 moisture sensitivity, rated for -65 °C to +175 °C operation, and qualified to AEC-Q101 for automotive under-hood and infotainment applications requiring long-term reliability under thermal cycling and mechanical stress.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Standoff Voltage (VRWM) | 13 V - Maximum continuous reverse operating voltage before conduction begins; sets minimum system operating margin. |
| Clamping Voltage (VC) | 21.5 V max at 9.3 A - Peak voltage seen by protected circuit during 10/1000 μs surge; defines worst-case stress on downstream ICs. |
| Peak Pulse Power (PPP) | 200 W at 10/1000 μs - Sustained transient energy absorption capability without failure; supports repeated ESD strikes. |
| Capacitance (CD) | 423 pF at 0 V, 1 MHz - Signal-line loading impact on high-speed interfaces like USB 2.0 (480 Mbps) and CAN FD. |
| ESD Rating | ±30 kV contact / ±30 kV air per IEC 61000-4-2 - Meets highest industrial and automotive ESD immunity requirements. |
| AEC-Q101 Qualified | Yes - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD stress per AEC standard. |
| Package | DO-219AB (SOD-123W footprint) - Low-profile (1.08 mm height), reflow-solderable, compatible with automated SMT assembly. |
Pinout & Package
SMF13A-HM3_A08 uses a 2-terminal DO-219AB (SOD-123W-compatible) package with cathode-bar marking. The device has no internal circuitry beyond the single PN junction; terminal polarity is fixed and non-reversible.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input/Line side | Connected to signal line or power rail requiring protection; conducts during positive transients when referenced to cathode. |
| Cathode | Ground reference | Connected to system ground or low-impedance return path; defines unidirectional clamping direction and ESD current sink path. |
Key Features
| Feature | Design Value |
|---|---|
| Low clamping voltage | 21.5 V max at 9.3 A ensures protected ICs remain below absolute maximum ratings during 10/1000 μs surges. |
| "Low Noise" fast response | Sub-nanosecond turn-on time minimizes voltage overshoot and preserves signal integrity in high-speed data lines. |
| AEC-Q101 qualification | Validated for automotive environments including thermal cycling (-65 °C to +175 °C), humidity, and mechanical shock. |
| Wave and reflow solderable | Compatible with standard Pb-free reflow profiles up to 260 °C peak, supporting high-yield automated PCB assembly. |
| UL 94 V-0 molding compound | Flame-retardant encapsulation meets safety standards for enclosed automotive and industrial enclosures. |
Applications
| USB 2.0 Data Lines | HDMI Interface Protection |
|---|---|
Use Scenario: Protecting D+ and D- differential pairs in portable and automotive USB host/peripheral ports from ESD events during hot-plug insertion. IC Role / Device Role / Timing Role: Unidirectional transient voltage suppressor placed between signal line and chassis ground, clamping ESD-induced voltage spikes before they reach the USB transceiver. Use Value: 423 pF capacitance avoids signal degradation at 480 Mbps; 21.5 V clamping prevents damage to 3.3 V tolerant PHY inputs. | Use Scenario: Safeguarding TMDS clock and data channels in automotive infotainment head units exposed to ESD during service or user interaction. IC Role / Device Role / Timing Role: Line-side ESD clamp on each TMDS channel, referenced to shield ground, absorbing ±30 kV contact discharges without latch-up. Use Value: AEC-Q101 qualification ensures operation across -40 °C to +105 °C ambient; DO-219AB package fits tight HDMI connector routing constraints. |
| Automotive Sensor I/O | Industrial CAN Bus Nodes |
Use Scenario: Protecting analog or digital outputs of pressure, temperature, or position sensors in engine control modules from cable-borne transients and ESD. IC Role / Device Role / Timing Role: Reverse-biased clamp on sensor output line, conducting only during overvoltage events while presenting minimal leakage (<0.1 μA) during normal operation. Use Value: 13 V VRWM matches common 12 V automotive supply rails; 175 °C junction rating supports under-hood placement near engines. | Use Scenario: Adding secondary ESD protection on CAN_H/CAN_L lines downstream of integrated CAN transceivers in factory automation PLCs. IC Role / Device Role / Timing Role: Standalone TVS diode pair (one per line) providing additional clamping margin beyond transceiver's internal protection. Use Value: 200 W peak pulse power handles combined ESD + lightning-induced surges; 423 pF adds negligible delay to 1 Mbps CAN signaling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ13A-E3/5A | DO-214AC (SMA) package; 1.8 mm height; 200 W PPP; 21.5 V VC; 423 pF - same electrical specs but larger footprint and higher profile. | Less suitable for space-constrained USB/HDMI layouts; better thermal dissipation in high-power industrial settings. | Select SMAJ13A-E3/5A when board layout allows larger package and higher RthJA tolerance is needed. |
| TPD2E001DRSR | 2-channel bidirectional array in UQFN-6; 13 V VRWM; 15 V VC; 12 pF - ultra-low capacitance but lower 120 W PPP and no AEC-Q101 rating. | Optimized for high-speed USB 2.0/3.0 but not qualified for automotive under-hood use or high-energy surges. | Choose TPD2E001DRSR for consumer USB ports where size and speed outweigh surge robustness and automotive compliance. |
Compared with SMAJ13A-E3/5A and TPD2E001DRSR, SMF13A-HM3_A08 uniquely balances AEC-Q101 qualification, 200 W surge capability, and compact DO-219AB packaging-making it optimal for automotive signal-line protection where space, reliability, and standardized testing are jointly required.
Availability
SMF13A-HM3_A08 is available at Aetrix Electronics and suitable for automotive infotainment systems, industrial sensor interfaces, and USB 2.0 peripheral protection requiring stable component supply across extended temperature ranges and high-volume production cycles.
Supply support for SMF13A-HM3_A08 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 diodes, MOSFETs, optoelectronics, and passive components with emphasis on reliability, precision, and automotive-grade validation.
The SMF series targets high-reliability ESD protection in automotive and industrial applications, engineered specifically to meet AEC-Q101 requirements while maintaining low clamping voltage and controlled capacitance for signal integrity.
FAQ
What is the maximum clamping voltage of the SMF13A-HM3_A08 under a 10/1000 μs surge?
The SMF13A-HM3_A08 has a maximum clamping voltage (VC) of 21.5 V when subjected to a 9.3 A peak pulse current with a 10/1000 μs waveform. This value is specified in the Electrical Characteristics table of Vishay's document 85881 and defines the upper voltage limit imposed on protected circuits during standardized surge events.
Is SMF13A-HM3_A08 qualified for automotive applications?
Yes, SMF13A-HM3_A08 is AEC-Q101 qualified, as confirmed in Vishay's SMF5V0A to SMF58A datasheet (Rev. 2.4). It undergoes stress testing including temperature cycling, high-temperature reverse bias, and ESD per AEC-Q101 requirements, making it suitable for automotive infotainment, body electronics, and under-hood sensor protection.
What package type does SMF13A-HM3_A08 use, and is it compatible with automated SMT assembly?
SMF13A-HM3_A08 uses the DO-219AB package (also known as SOD-123W footprint), with dimensions of 3.9 mm × 1.9 mm × 1.08 mm. It is fully compatible with wave and reflow soldering processes, including Pb-free profiles up to 260 °C peak temperature, and meets MSL level 1 per J-STD-020-enabling reliable high-volume SMT manufacturing.
How does the capacitance of SMF13A-HM3_A08 affect high-speed signal lines like USB 2.0?
With a typical capacitance of 423 pF at 0 V and 1 MHz, SMF13A-HM3_A08 introduces measurable loading on USB 2.0 differential pairs. While acceptable for full-speed (12 Mbps) and many high-speed (480 Mbps) implementations with proper layout, designers should verify eye diagram integrity and jitter budgets-especially in length-matched, impedance-controlled traces where cumulative capacitance impacts rise/fall times.
What is the standoff voltage (VRWM) and why is it important for SMF13A-HM3_A08 selection?
The standoff voltage (VRWM) of SMF13A-HM3_A08 is 13 V, representing the maximum continuous reverse voltage the diode can block without significant leakage (<0.1 μA). This parameter ensures compatibility with 12 V automotive systems and prevents false triggering during normal operation, while still allowing effective clamping above transient thresholds-critical for reliable interface protection without DC loading.
SMF13A-HM3_A08 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay
- 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 (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-219AB (SMF)
SMF13A-HM3_A08 FAQ
1.How can I place an order for SMF13A-HM3_A08 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMF13A-HM3_A08 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-HM3_A08 reliable?
The price and inventory of SMF13A-HM3_A08 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMF13A-HM3_A08 is usually 5 days.
3.What payment methods are accepted for SMF13A-HM3_A08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMF13A-HM3_A08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMF13A-HM3_A08?
SMF13A-HM3_A08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMF13A-HM3_A08 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-HM3_A08?
For technical support, including SMF13A-HM3_A08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMF13A-HM3_A08 requirements.
6.How does Aetrix verify that SMF13A-HM3_A08 is sourced from the original manufacturer or authorized distributors?
All SMF13A-HM3_A08 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-HM3_A08 meets industry standards.
7.What is the process for return or replacement of SMF13A-HM3_A08?
All SMF13A-HM3_A08 units undergo pre-shipment inspection (PSI). If there is an issue with SMF13A-HM3_A08, 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-HM3_A08 part is unused and in its original packaging.
Return procedure for SMF13A-HM3_A08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMF13A-HM3_A08 Tags
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