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Vishay General Semiconductor - Diodes Division SM6T30AHM3_A/H
- Part No.:
- SM6T30AHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SM6T30AHM3_A/H.pdf
- Description:
- TVS DIODE 25.6VWM 41.5VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,814
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Product details
Overview
SM6T30AHM3_A/H from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, with 30 V breakdown voltage (VBR = 28.5–31.5 V at 1.0 mA), 25.6 V stand-off voltage (VWM), 41.5 V clamping voltage (VC) at 14.5 A peak pulse current, and 600 W peak pulse power rating per 10/1000 μs waveform. It protects MOSFETs and signal lines in automotive sensor units against inductive switching transients.
For engineers reviewing the SM6T30AHM3_A/H datasheet, SM6T30AHM3_A/H pinout, SM6T30AHM3_A/H application, or SM6T30AHM3_A/H equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, SMB package mechanical data, clamping performance under standardized surge waveforms, and direct alternatives for circuit protection design-in.
Technical Context
The SM6T30AHM3_A/H operates as a unidirectional avalanche-clamping device with glass-passivated junction, optimized for fast response to transient overvoltages. Its 100 °C/W junction-to-ambient thermal resistance and 20 °C/W junction-to-lead resistance support reliable operation up to 150 °C junction temperature under defined PCB pad layout.
Designed for automated SMT placement, it meets J-STD-020 MSL Level 1 (peak reflow 260 °C) and JESD 201 Class 2 whisker resistance. The cathode band marking identifies polarity, and its halogen-free, RoHS-compliant construction aligns with automotive-grade environmental requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 28.5 V / 31.5 V at 1.0 mA - defines minimum voltage at which avalanche conduction begins reliably |
| VWM | 25.6 V - maximum continuous reverse operating voltage before leakage exceeds 1.0 μA |
| VC @ IPPM | 41.5 V at 14.5 A (10/1000 μs) - clamping voltage limiting protected circuit stress during surge |
| PPPM | 600 W - peak transient power dissipation capability under standard lightning-surge waveform |
| TJ max. | +150 °C - maximum junction temperature enabling use in under-hood automotive environments |
| RθJA | 100 °C/W - thermal resistance indicating required PCB copper area for safe power derating |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002. Cathode identified by black band on body end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Reverse voltage reference node | Connected to system ground or lower-potential rail in unidirectional clamp configuration |
| Cathode | Avalanche conduction output / Clamped voltage node | Connected to protected line; clamps voltage to ≤41.5 V during 14.5 A transient |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Enables robust protection against ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 surges without derating on standard 5 mm × 5 mm pads |
| AEC-Q101 qualified | Validated for automotive applications including engine control modules and ADAS sensor interfaces requiring zero-failure reliability |
| Halogen-free & RoHS-compliant (HM3 suffix) | Meets ELV and RoHS directives for vehicle end-of-life recycling and manufacturing safety compliance |
| Low inductance SMB package | Minimizes voltage overshoot during fast-rising transients (<1 ns rise time), critical for protecting high-speed signal lines |
Applications
| Automotive Powertrain Sensors | Industrial Motor Drive Inputs |
|---|---|
Use Scenario: Protecting crankshaft position sensor signal lines from load-dump and inductive kickback in 12 V battery systems. IC Role / Device Role / Timing Role: Unidirectional TVS clamping transient energy before it reaches analog front-end amplifier inputs. Use Value: Prevents latch-up or permanent damage to precision Hall-effect sensors while maintaining signal integrity below 25.6 V DC bias. | Use Scenario: Safeguarding PLC digital input terminals connected to 24 V DC solenoid coils subject to repetitive switching transients. IC Role / Device Role / Timing Role: Standoff-and-clamp protector absorbing 600 W surges without degradation across >100,000 cycles. Use Value: Eliminates need for external RC snubbers, reducing BOM count and board space in DIN-rail mounted controllers. |
| Automotive ADAS Camera Modules | Consumer USB-C ESD Protection |
Use Scenario: Shielding FPD-Link III serial video interface lines in rear-view cameras exposed to ISO 10605 ESD events. IC Role / Device Role / Timing Role: Fast-response unidirectional suppressor placed adjacent to connector to limit voltage to <41.5 V during 30 A contact discharge. Use Value: Maintains bit-error-rate compliance under 8 kV air discharge by clamping within 1 ns, preserving 3 Gbps video bandwidth. | Use Scenario: Secondary-level surge protection on VBUS line of portable speaker docking stations subjected to accidental 12 V adapter misconnection. IC Role / Device Role / Timing Role: High-energy backup limiter after primary polyfuse, handling 600 W surges that exceed fuse trip threshold. Use Value: Prevents catastrophic failure of USB-C controller ICs during sustained overvoltage, extending field life beyond 5 years. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ30A-E3/5B | Same SMB package, 30 V VBR, but 400 W PPPM; non-AEC-Q101; RoHS-compliant only (no halogen-free claim) | Limited to commercial/industrial use; not qualified for automotive under-hood deployment | Select when cost sensitivity outweighs automotive qualification and 200 W lower surge margin is acceptable |
| SMCJ30A-HM3 | Higher 1500 W PPPM, same VBR/VC, but larger SMC (DO-214AB) package; AEC-Q101 and halogen-free | Requires PCB redesign due to 7.11 mm × 6.22 mm footprint vs. SMB's 4.57 mm × 3.94 mm | Select when system-level surge immunity requires >600 W margin and board space permits larger case |
Compared with SMAJ30A-E3/5B and SMCJ30A-HM3, the SM6T30AHM3_A/H uniquely balances AEC-Q101 qualification, halogen-free compliance, SMB footprint, and 600 W surge capability-making it optimal for space-constrained automotive modules where full qualification and environmental compliance are mandatory.
Availability
SM6T30AHM3_A/H is available at Aetrix Electronics and suitable for automotive sensor protection, industrial PLC input conditioning, and consumer USB-C power line safeguarding requiring stable component supply and long-term lifecycle assurance.
Supply support for SM6T30AHM3_A/H 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 General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The SM6T Series is engineered for high-reliability transient suppression in harsh environments, targeting automotive, industrial, and telecom applications where consistent clamping performance and qualification compliance are non-negotiable.
FAQ
What is the clamping voltage of the SM6T30AHM3_A/H under a 10/1000 μs surge?
The SM6T30AHM3_A/H has a maximum clamping voltage (VC) of 41.5 V at 14.5 A peak pulse current under the standardized 10/1000 μs waveform. This value is measured with the device mounted on 0.2" × 0.2" copper pads per JEDEC guidelines and ensures protected circuits remain below critical voltage thresholds during surge events. The SM6T30AHM3_A/H maintains this clamping performance across its qualified operating temperature range.
Is SM6T30AHM3_A/H qualified for automotive applications?
Yes, the SM6T30AHM3_A/H is AEC-Q101 qualified, as confirmed by Vishay's ordering code structure (HM3 suffix denotes halogen-free, RoHS-compliant, and AEC-Q101 qualified). It is rated for junction temperatures from –65 °C to +150 °C and meets MSL Level 1 reflow requirements-making it suitable for under-hood and ADAS module deployments where reliability under thermal and mechanical stress is essential. The SM6T30AHM3_A/H carries full qualification documentation per AEC-Q101 test plan.
What does the "HM3" suffix indicate in SM6T30AHM3_A/H?
The "HM3" suffix in SM6T30AHM3_A/H specifies halogen-free, RoHS-compliant construction with AEC-Q101 qualification. It distinguishes the part from commercial-grade variants (E3/M3) and confirms compliance with automotive environmental standards including ELV Directive and JESD 201 Class 2 whisker resistance. The "_A/H" denotes revision level and packaging format (7" tape and reel, 750 units), ensuring traceability and process consistency for the SM6T30AHM3_A/H.
How does SM6T30AHM3_A/H differ from SM6T30A-E3/52?
The SM6T30AHM3_A/H differs from SM6T30A-E3/52 in three key ways: it is AEC-Q101 qualified (vs. commercial grade), halogen-free (vs. standard RoHS), and supplied in 7" tape-and-reel with 750-unit quantity (vs. E3/52's 750-unit 7" reel but no automotive qualification). Both share identical electrical specs and SMB package, but only the SM6T30AHM3_A/H meets automotive reliability and material compliance mandates. The SM6T30AHM3_A/H is the designated variant for Tier 1 automotive BOMs.
What is the maximum reverse leakage current for SM6T30AHM3_A/H at rated stand-off voltage?
The SM6T30AHM3_A/H exhibits a maximum reverse leakage current (ID) of 1.0 μA at its rated stand-off voltage (VWM) of 25.6 V, measured at 25 °C ambient. This ultra-low leakage preserves signal integrity in high-impedance sensor interfaces and prevents false triggering in precision analog circuits. The SM6T30AHM3_A/H maintains leakage below 10 μA up to 125 °C, supporting stable operation across extended temperature ranges.
SM6T30AHM3_A/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- SM6T, TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 25.6V
- Voltage - Breakdown (Min):
- 28.5V
- Voltage - Clamping (Max) @ Ipp:
- 41.5V
- Current - Peak Pulse (10/1000µs):
- 14.5A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
SM6T30AHM3_A/H FAQ
1.How can I place an order for SM6T30AHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SM6T30AHM3_A/H 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 SM6T30AHM3_A/H reliable?
The price and inventory of SM6T30AHM3_A/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM6T30AHM3_A/H is usually 5 days.
3.What payment methods are accepted for SM6T30AHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM6T30AHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM6T30AHM3_A/H?
SM6T30AHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM6T30AHM3_A/H 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 SM6T30AHM3_A/H?
For technical support, including SM6T30AHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM6T30AHM3_A/H requirements.
6.How does Aetrix verify that SM6T30AHM3_A/H is sourced from the original manufacturer or authorized distributors?
All SM6T30AHM3_A/H 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 SM6T30AHM3_A/H meets industry standards.
7.What is the process for return or replacement of SM6T30AHM3_A/H?
All SM6T30AHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with SM6T30AHM3_A/H, 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 SM6T30AHM3_A/H part is unused and in its original packaging.
Return procedure for SM6T30AHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM6T30AHM3_A/H Tags
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