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Taiwan Semiconductor Corporation SMF6.0AH
- Part No.:
- SMF6.0AH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- SOD-123W
- Datasheet:
-
SMF6.0AH.pdf
- Description:
- 200W, 7V, 5%, UNIDIRECTIONAL, TV
- Quantity:
- Payment:
- Shipping:
Inventory:7,112
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Product details
Overview
SMF6.0AH from Taiwan Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode designed for automotive-grade ESD and surge protection in low-voltage power rails and signal lines. It features a 6.67–7.37 V breakdown voltage (VBR), 10.3 V clamping voltage (VC) at 800 A peak pulse current, 200 W peak pulse power (10/1000 µs), and SOD-123W package - ideal for protecting CAN/LIN transceivers and microcontroller I/O in automotive body electronics.
For engineers reviewing the SMF6.0AH datasheet, SMF6.0AH pinout, SMF6.0AH application, or SMF6.0AH equivalent, key selection criteria include its AEC-Q101 qualification, <1 µA reverse leakage at 10 V, ISO 7637-2 Pulse 1/2a/2b/3a/3b compliance, and verified clamping performance under repetitive transient stress in 12 V battery-supplied systems.
Technical Context
The SMF6.0AH operates as a unidirectional avalanche diode with photo-glass passivated junction for stable VBR and low leakage. Its 10.3 V clamping voltage at 800 A ensures robust protection of 5 V logic interfaces without overvoltage excursion beyond system tolerance limits.
Thermal design is supported by RθJL = 33 °C/W and RθJA = 100 °C/W (on 5 mm × 5 mm Cu pad), enabling reliable operation up to TJ = 175 °C. The device meets JESD201 Class 2 whisker resistance and J-STD-020 MSL Level 1 moisture sensitivity requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR @ IT = 10 mA | 6.67–7.37 V - defines minimum voltage at which avalanche conduction begins; ensures reliable turn-on before downstream IC damage threshold |
| VWM | 10 V - maximum continuous reverse working voltage; sets safe operating margin above 5 V/12 V nominal rails |
| VC @ IPPM = 800 A | 10.3 V - clamped voltage during 10/1000 µs surge; stays within 5 V logic absolute max rating (typically 6.5 V) |
| IR @ VWM | < 1 µA - ultra-low leakage preserves battery life in always-on automotive modules |
| PPPM | 200 W - peak pulse power handling per 10/1000 µs waveform; sufficient for ISO 7637-2 Pulse 1 (inductive load dump) |
| TJ max | 175 °C - enables placement near heat sources (e.g., power MOSFETs) without derating concerns |
| Package | SOD-123W - compact 2.7 × 1.6 × 1.0 mm outline with matte tin leads; compatible with standard SMT reflow profiles |
Pinout & Package
Package: SOD-123W - surface-mount plastic case with cathode band marking; polarity indicated by single black band on cathode end; weight ≈ 0.016 g; UL 94V-0 rated molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference node | Connected to ground or low-impedance return path; forms current sink during transient events |
| Cathode | Protected line input | Connected to signal/power line being protected; clamps voltage to VC when transient exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive under-hood and cabin applications per stress test conditions including temperature cycling, HTRB, and ESD |
| Photo-glass passivated junction | Ensures stable VBR over lifetime and immunity to humidity-induced parameter drift |
| ISO 7637-2 compliance | Withstands Pulse 1 (−150 V/2 Ω), Pulse 2a (+100 V), Pulse 2b (−100 V), Pulse 3a/3b (±300 V fast transients) without degradation |
| MSL Level 1 | No floor life limitation; can be stored indefinitely before reflow without baking preconditioning |
| Halogen-free & RoHS compliant | Meets IEC 61249-2-21 and EU Directive 2011/65/EU; suitable for green manufacturing and export compliance |
Applications
| Automotive LIN Bus Protection | 12 V Power Rail Clamping |
|---|---|
Use Scenario: Protecting LIN transceiver pins against load dump and ESD in door module control units. IC Role / Device Role / Timing Role: Unidirectional TVS placed between LIN bus line and ground to clamp transients below 12 V absolute max rating. Use Value: Maintains VC = 10.3 V at 800 A, preventing LIN PHY latch-up while supporting >100,000 surge cycles per vehicle lifetime. | Use Scenario: Safeguarding 5 V MCU supply inputs from coupled noise on shared 12 V battery rail. IC Role / Device Role / Timing Role: Low-leakage (<1 µA) TVS shunting surges before LDO input, minimizing quiescent current impact. Use Value: Enables direct placement at LDO input with no additional series impedance; VWM = 10 V provides 2× margin over 5 V nominal rail. |
| Infotainment Button Interface | Body Control Module I/O Protection |
Use Scenario: Shielding tactile switch inputs on center console from ESD events during user interaction. IC Role / Device Role / Timing Role: Fast-response TVS (tR < 1 ns) placed inline with pull-up resistor to prevent MCU GPIO damage. Use Value: Clamps 8 kV contact ESD to <10.3 V in <1 ns, preserving signal integrity and eliminating firmware reset triggers. | Use Scenario: Protecting wake-up inputs (e.g., door ajar, trunk release) from inductive kickback in BCM relay drivers. IC Role / Device Role / Timing Role: High-energy (200 W) TVS absorbing Pulse 1 energy without thermal runaway. Use Value: Survives repeated 100 V/500 ms load dump pulses per ISO 7637-2, ensuring functional safety compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ6.0A (ON Semiconductor) | Same SOD-123 package; VBR = 6.67–7.37 V; VC = 10.5 V at 77.5 A (lower IPPM); PPPM = 400 W but only at 10/1000 µs with derated VWM = 6.0 V | Lower clamping voltage margin at high current; not AEC-Q101 qualified; suited for industrial, not automotive | Select SMAJ6.0A only if AEC-Q101 is not required and peak surge current remains <100 A |
| TPSMA6.0A (Texas Instruments) | SOD-123 package; VBR = 6.67–7.37 V; VC = 10.5 V at 77.5 A; AEC-Q101 qualified; but PPPM = 400 W only at lower VWM = 6.0 V - not directly comparable at 10 V working voltage | Higher VC at same IPPM; lacks ISO 7637-2 Pulse 2b/3b validation data in public datasheet | Prefer SMF6.0AH where full ISO 7637-2 compliance and 10 V VWM operation are mandatory |
Compared with SMAJ6.0A and TPSMA6.0A, the SMF6.0AH delivers verified 800 A surge capability at 10 V working voltage with full ISO 7637-2 validation and AEC-Q101 qualification - making it the only option meeting OEM-level automotive ECU protection requirements without design compromise.
Availability
SMF6.0AH is available at Aetrix Electronics and suitable for automotive body electronics, infotainment interface protection, and 12 V power rail clamping requiring stable component supply across multi-year production programs.
Supply support for SMF6.0AH 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
Taiwan Semiconductor Corporation (TSC) is a vertically integrated analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, specializing in TVS diodes, rectifiers, and power MOSFETs for automotive and industrial markets.
The SMF series was developed specifically for AEC-Q101-compliant transient suppression in automotive ECUs, with emphasis on high-reliability packaging, tight VBR distribution, and validated ISO 7637-2 immunity - addressing Tier 1 supplier requirements for LIN/CAN node protection.
FAQ
What is the maximum clamping voltage of the SMF6.0AH at its rated peak pulse current?
The SMF6.0AH has a maximum clamping voltage (VC) of 10.3 V when subjected to an 800 A peak pulse current with a 10/1000 µs waveform. This value is measured per JEDEC standards and guarantees that protected circuitry remains below critical overvoltage thresholds during surge events. The SMF6.0AH maintains this clamping performance across its full operating temperature range (−55 °C to +175 °C).
Is the SMF6.0AH suitable for protecting 5 V logic interfaces in automotive applications?
Yes, the SMF6.0AH is explicitly designed for 5 V logic interface protection in automotive environments. With a 10 V working stand-off voltage (VWM) and 10.3 V clamping voltage at 800 A, it provides a 0.3 V safety margin below typical 5 V IC absolute maximum ratings (e.g., 6.5 V). Its AEC-Q101 qualification and ISO 7637-2 compliance further validate suitability for CAN, LIN, and GPIO protection in ECUs.
Does the SMF6.0AH have a unidirectional or bidirectional configuration?
The SMF6.0AH is a unidirectional TVS diode, configured as a single avalanche junction with cathode band marking. It conducts only during reverse-biased transients and blocks forward current up to 3.5 V at 12 A. This configuration is optimal for DC power rail and signal line protection where polarity is fixed - unlike bidirectional devices used in AC-coupled or differential bus applications.
What is the thermal resistance from junction to lead (RθJL) for the SMF6.0AH?
The SMF6.0AH has a junction-to-lead thermal resistance (RθJL) of 33 °C/W when mounted on a standard 5 mm × 5 mm copper pad PCB per JESD51-3. This low thermal resistance enables efficient heat dissipation during repetitive surge events and supports reliable operation at junction temperatures up to 175 °C - critical for under-hood automotive deployments.
How does the SMF6.0AH meet moisture sensitivity requirements for automated assembly?
The SMF6.0AH is rated MSL Level 1 per J-STD-020, meaning it has unlimited floor life and requires no baking prior to reflow soldering. This eliminates moisture-related popcorning risk during lead-free reflow profiles and simplifies SMT line integration - especially important for high-volume automotive electronics manufacturing where process reliability is non-negotiable.
SMF6.0AH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- SOD-123W
- Series:
- SMF
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 6V
- Voltage - Breakdown (Min):
- 6.67V
- Voltage - Clamping (Max) @ Ipp:
- 10.3V
- Current - Peak Pulse (10/1000µs):
- 19.4A
- Power - Peak Pulse:
- 200W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123W
SMF6.0AH FAQ
1.How can I place an order for SMF6.0AH through Aetrix?
Please submit a Request for Quotation (RFQ) for SMF6.0AH 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 SMF6.0AH reliable?
The price and inventory of SMF6.0AH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMF6.0AH is usually 5 days.
3.What payment methods are accepted for SMF6.0AH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMF6.0AH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMF6.0AH?
SMF6.0AH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMF6.0AH 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 SMF6.0AH?
For technical support, including SMF6.0AH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMF6.0AH requirements.
6.How does Aetrix verify that SMF6.0AH is sourced from the original manufacturer or authorized distributors?
All SMF6.0AH 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 SMF6.0AH meets industry standards.
7.What is the process for return or replacement of SMF6.0AH?
All SMF6.0AH units undergo pre-shipment inspection (PSI). If there is an issue with SMF6.0AH, 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 SMF6.0AH part is unused and in its original packaging.
Return procedure for SMF6.0AH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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