My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMF7V5A-HM3-08
- Part No.:
- SMF7V5A-HM3-08
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-219AB
- Datasheet:
-
SMF7V5A-HM3-08.pdf
- Description:
- TVS DIODE 7.5VWM 12.9VC SMF
- Quantity:
- Payment:
- Shipping:
Inventory:3,614
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMF7V5A-HM3-08 from Vishay Semiconductors is a unidirectional surface-mount ESD protection diode in the SMF (DO-219AB) package, designed for low-capacitance transient suppression on high-speed data lines. It features a 7.5 V stand-off voltage (VRWM), 8.33–9.3 V reverse breakdown range (VBR), 12.9 V maximum clamping voltage at 15.5 A peak pulse current, 773 pF typical junction capacitance at 0 V, and ±30 kV IEC 61000-4-2 ESD immunity - suitable for USB 2.0, HDMI, and industrial sensor interface protection.
For engineers reviewing the SMF7V5A-HM3-08 datasheet, SMF7V5A-HM3-08 pinout, SMF7V5A-HM3-08 application, or SMF7V5A-HM3-08 equivalent, this device delivers verified AEC-Q101 qualification, low-noise fast response, and SOD-123W-compatible packaging - critical for automotive infotainment, industrial I/O, and space-constrained consumer electronics where clamping performance and board-level ESD robustness are design-critical.
Technical Context
This unidirectional TVS diode operates with a single protection path and uses silicon avalanche technology to clamp transients within nanoseconds. Its low incremental surge resistance ensures minimal voltage overshoot during 10/1000 μs surges, while its 1.08 mm height and 3.9 × 1.9 mm footprint support dense PCB layouts.
The device meets IEC 61000-4-2 (±30 kV contact/air), IEC 61000-4-5 (1000 W at 8/20 μs), and AEC-Q101 Class H3B (>8 kV HBM) requirements. Thermal resistance is 180 K/W when mounted on 3 mm × 3 mm Cu pads, enabling reliable operation up to +175 °C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Stand-off Voltage (VRWM) | 7.5 V - maximum continuous reverse voltage before significant leakage; sets operating margin for 5 V–7 V signal rails. |
| Breakdown Voltage (VBR) | 8.33–9.3 V at 1 mA - precise avalanche onset threshold ensuring predictable turn-on during overvoltage events. |
| Clamping Voltage (VC) | 12.9 V max at 15.5 A (10/1000 μs) - limits downstream IC stress during surge; <13 V enables safe protection of 12 V logic interfaces. |
| Junction Capacitance (CD) | 773 pF at 0 V, 1 MHz - optimized for sub-1 nF signal integrity on medium-speed digital lines (e.g., CAN, RS-485, UART). |
| Peak Pulse Power (PPP) | 200 W at 10/1000 μs - sustains repeated ESD strikes without degradation; supports >100,000-event lifetime per IEC spec. |
| ESD Immunity | ±30 kV contact / ±30 kV air per IEC 61000-4-2 - exceeds Level 4 immunity requirements for industrial and automotive end-equipment. |
| AEC-Q101 Qualified | Yes - qualified for automotive applications including infotainment, body control modules, and ADAS sensor interfaces. |
Pinout & Package
SMF7V5A-HM3-08 is housed in the DO-219AB (SMF) package - a low-profile, surface-mount case with cathode marking bar, compatible with SOD-123W footprint and reflow/wave soldering processes. Dimensions: 3.9 mm × 1.9 mm × 1.08 mm (L × W × H).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | Input side of protection path | Connected to protected line (e.g., USB D+); conducts surge current toward ground during positive transients. |
| Cathode (Pin 2) | Ground reference terminal | Connected to system ground plane; establishes clamping reference and completes ESD current path with minimal inductance. |
Key Features
| Feature | Design Value |
|---|---|
| Low-profile DO-219AB package | 1.08 mm height enables use in ultra-thin devices (e.g., portable medical sensors, wearables) without mechanical interference. |
| "Low Noise" fast-response technology | Sub-nanosecond response time minimizes voltage overshoot during ESD events, preserving signal fidelity on high-speed lines. |
| 200 W peak pulse power (10/1000 μs) | Supports repeated surge exposure in harsh environments (e.g., factory automation, outdoor kiosks) without parameter drift. |
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock testing. |
| RoHS-compliant, lead-free terminations | Tin-plated terminals ensure compatibility with Pb-free assembly processes and meet global environmental compliance mandates. |
Applications
| USB 2.0 Interface Protection | HDMI Signal Line Protection |
|---|---|
|
Use Scenario: Protecting D+ and D− lines in USB 2.0 host/device ports against ESD events during hot-plug insertion. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between signal line and ground to clamp transients before they reach the USB transceiver. Use Value: 773 pF capacitance avoids signal distortion at 480 Mbps; 12.9 V clamping prevents damage to 3.3 V tolerant PHY circuitry. |
Use Scenario: Safeguarding TMDS clock and data channels in HDMI 1.4 receivers against electrostatic discharge in consumer AV equipment. IC Role / Device Role / Timing Role: Standoff-rated TVS on each differential pair, referenced to chassis ground to suppress common-mode surges. Use Value: 7.5 V VRWM aligns with HDMI DC bias; low capacitance preserves rise/fall times across 3.4 Gbps bandwidth. |
| Automotive Sensor I/O Protection | Industrial RS-485 Transceiver Protection |
|
Use Scenario: Shielding analog/digital outputs of pressure, temperature, or position sensors in engine control units and body modules. IC Role / Device Role / Timing Role: Point-of-entry protection on sensor harness connections to prevent latch-up or gate oxide damage in ASICs. Use Value: AEC-Q101 qualification ensures operation from −65 °C to +175 °C; ±30 kV ESD rating covers manufacturing and field handling. |
Use Scenario: Guarding RS-485 transceiver A/B lines in programmable logic controllers and motor drives exposed to factory EMI. IC Role / Device Role / Timing Role: Bidirectional-capable unidirectional configuration used with split-rail grounding to suppress both polarities via ground return path. Use Value: 200 W pulse rating handles induced surges from nearby relay switching; 180 K/W RthJA supports thermal stability under sustained bus faults. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ7.5A-E3/57T | Higher clamping voltage (12.5 V vs. 12.9 V), larger SMA package (4.5 × 2.7 mm), 600 W PPP (8/20 μs) | Less suitable for space-constrained designs; better for higher-energy surges in AC-powered industrial gear | Select when surge energy exceeds 200 W but board area allows larger footprint. |
| TPD2E001DRYR | Two-channel, 12 pF per line, 5.5 V VRWM, 10.5 V VC at 1 A - integrated dual-channel ESD array in 1.6 × 1.6 mm DRY package | Designed for ultra-low-capacitance USB/MIPI interfaces; not rated for AEC-Q101 or high-current surges | Prefer for high-speed mobile interfaces requiring <15 pF; avoid where automotive qualification or 15 A surge handling is required. |
Compared with SMAJ7.5A-E3/57T and TPD2E001DRYR, SMF7V5A-HM3-08 uniquely balances AEC-Q101 compliance, 773 pF capacitance for medium-speed lines, and compact DO-219AB packaging - making it optimal for automotive and industrial applications demanding proven reliability in tight spaces.
Availability
SMF7V5A-HM3-08 is available at Aetrix Electronics and suitable for automotive infotainment systems, industrial sensor nodes, and consumer HDMI/USB interface protection requiring stable component supply and long-term lifecycle assurance.
Supply support for SMF7V5A-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 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 board-level ESD protection in space-constrained, high-reliability applications - engineered specifically for AEC-Q101 compliance, low-profile mounting, and consistent clamping performance across temperature extremes.
FAQ
What is the maximum clamping voltage of the SMF7V5A-HM3-08 under standard test conditions?
The SMF7V5A-HM3-08 has a maximum clamping voltage (VC) of 12.9 V when subjected to a 15.5 A peak pulse current with a 10/1000 μs waveform. This value is measured per IEC 61000-4-5 and ensures downstream ICs remain within safe operating voltage margins during transient events. The SMF7V5A-HM3-08 maintains this clamping performance across its full operating temperature range of −65 °C to +175 °C.
Is SMF7V5A-HM3-08 qualified for automotive applications?
Yes, SMF7V5A-HM3-08 is AEC-Q101 qualified and rated for human body model (HBM) ESD >8 kV. It undergoes rigorous stress testing including temperature cycling, high-temperature operating life, and mechanical shock - confirming suitability for automotive subsystems such as body control modules, infotainment head units, and sensor interfaces. The SMF7V5A-HM3-08 meets all applicable AEC-Q101 test requirements per Rev. 2.4 of its Vishay datasheet.
What package type does SMF7V5A-HM3-08 use, and is it compatible with automated assembly?
SMF7V5A-HM3-08 uses the DO-219AB (SMF) package - a low-profile, surface-mount outline measuring 3.9 mm × 1.9 mm × 1.08 mm with cathode polarity marking. It is fully compatible with standard reflow and wave soldering processes, including Pb-free profiles with peak temperatures up to 260 °C. The SMF7V5A-HM3-08 is supplied on 8 mm tape-and-reel (3K per 7″ reel), supporting high-volume automated placement.
How does the junction capacitance of SMF7V5A-HM3-08 affect high-speed signal integrity?
The SMF7V5A-HM3-08 exhibits 773 pF typical junction capacitance at 0 V and 1 MHz, which is optimized for medium-speed digital interfaces like RS-485, CAN, and legacy USB 2.0 - where signal edge rates allow moderate loading without distortion. This capacitance level avoids the excessive loading seen in higher-capacitance TVS devices while providing stronger surge handling than sub-10 pF arrays. For the SMF7V5A-HM3-08, the trade-off between clamping robustness and bandwidth is intentionally balanced for industrial and automotive I/O protection.
What is the standoff voltage rating of SMF7V5A-HM3-08, and how does it relate to system voltage rails?
The SMF7V5A-HM3-08 has a maximum stand-off voltage (VRWM) of 7.5 V, meaning it remains non-conductive up to this DC or RMS voltage level under normal operation. This rating makes it ideal for protecting circuits powered by 5 V or 7 V rails - such as microcontroller GPIOs, sensor analog outputs, or industrial I/O buffers - while providing sufficient margin above nominal voltage to avoid leakage or false triggering. The SMF7V5A-HM3-08's 7.5 V VRWM ensures stable operation across temperature and aging conditions without compromising protection sensitivity.
SMF7V5A-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):
- 7.5V
- Voltage - Breakdown (Min):
- 8.33V
- Voltage - Clamping (Max) @ Ipp:
- 12.9V
- Current - Peak Pulse (10/1000µs):
- 15.5A
- Power - Peak Pulse:
- 200W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- 773pF @ 1MHz
- Operating Temperature:
- -65°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-219AB (SMF)
SMF7V5A-HM3-08 FAQ
1.How can I place an order for SMF7V5A-HM3-08 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMF7V5A-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 SMF7V5A-HM3-08 reliable?
The price and inventory of SMF7V5A-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 SMF7V5A-HM3-08 is usually 5 days.
3.What payment methods are accepted for SMF7V5A-HM3-08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMF7V5A-HM3-08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMF7V5A-HM3-08?
SMF7V5A-HM3-08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMF7V5A-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 SMF7V5A-HM3-08?
For technical support, including SMF7V5A-HM3-08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMF7V5A-HM3-08 requirements.
6.How does Aetrix verify that SMF7V5A-HM3-08 is sourced from the original manufacturer or authorized distributors?
All SMF7V5A-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 SMF7V5A-HM3-08 meets industry standards.
7.What is the process for return or replacement of SMF7V5A-HM3-08?
All SMF7V5A-HM3-08 units undergo pre-shipment inspection (PSI). If there is an issue with SMF7V5A-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 SMF7V5A-HM3-08 part is unused and in its original packaging.
Return procedure for SMF7V5A-HM3-08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMF7V5A-HM3-08 Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
