SM6F26AY STMicroelectronics TVS Diode (Uni-directional) (Other) In Stock
Automotive-grade unidirectional TVS diode rated at 600W peak pulse power with a 26V standoff voltage and 53.5V maximum clamping voltage. Provides fast transient suppression in AEC-Q101 qualified SOD128 Flat package for 12V and 24V automotive bus protection.
- Manufacturer
- STMicroelectronics
- Package
- Other
- Pin Count
- 2
- Lifecycle
- ACTIVE
- Datasheet
- SM6F26AY Datasheet PDF
- Category
- TVS Diode (Uni-directional)
- Price
- From $0.1594(MOQ 10)
- Temp Range
- -55.0°C to 175.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 600W peak pulse power capability (10/1000 µs) absorbs automotive load dump and inductive transients without degradation on 12V and 24V vehicle bus lines
- 26V standoff voltage with a tight 28.9V to 31.9V breakdown range provides reliable over-voltage clamping with defined margins for 24V nominal automotive rails
- 53.5V maximum clamping voltage at peak pulse current limits transient stress on protected ICs to within automotive AEC-Q101 rated device limits
- AEC-Q101 automotive qualification ensures reliability across the -40°C to +150°C temperature range required for under-hood and body electronics applications
- Compact SOD128 Flat package (3.0 mm × 2.5 mm) allows placement adjacent to connector pins on high-density automotive PCBs
Applications
The SM6F26AY is used on automotive ECU power input lines, 24V truck bus interfaces, and CAN/LIN transceiver supply rails where load dump transients up to 600W must be clamped below 53.5V within nanoseconds. Its AEC-Q101 automotive qualification and SOD128 Flat package also suit it for relay-drive protection circuits, motor control modules, and 24V fleet telematics hardware operating in wide temperature environments.
Specifications
| Factory Lead Time | 25Weeks |
| YTEOL | 7.51 |
| Breakdown Voltage-Max | 31.9V |
| Breakdown Voltage-Min | 28.9V |
| Breakdown Voltage-Nom | 30.4V |
| Clamping Voltage-Max | 53.5V |
| Configuration | SINGLE, 1 CHANNEL |
| Diode Element Material | SILICON |
| Diode Type | TRANS VOLTAGE SUPPRESSOR DIODE |
| JESD-30 Code | R-PDSO-F2 |
| JESD-609 Code | e3 |
| Non-rep Peak Rev Power Dis-Max | 4000W |
| Number of Elements | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Polarity | UNIDIRECTIONAL |
| Reference Standard | AEC-Q101, IEC-61000-4-2, 4-4 |
| Rep Pk Reverse Voltage-Max | 26V |
| Reverse Current-Max | 0.2 µA |
| Reverse Test Voltage | 26V |
| Surface Mount | YES |
| Technology | AVALANCHE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | FLAT |
| Terminal Position | DUAL |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8541.10.00.50 |
| Country of Origin | Malaysia |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What peak pulse power can the SM6F26AY absorb and over what pulse duration is it rated?
The SM6F26AY is rated for 600W peak pulse power using a 10/1000 µs test waveform, which represents the automotive load dump profile. This capability allows it to absorb transient energy spikes generated by alternator disconnection events on 12V and 24V vehicle electrical systems without damage, protecting downstream ECU circuits from over-voltage stress.
What is the clamping voltage of the SM6F26AY at peak pulse current and how does this protect connected ICs?
The SM6F26AY clamps to a maximum of 53.5V at its rated peak pulse current. For circuits powered from a 24V nominal automotive rail with a 36V maximum operating voltage, the 53.5V clamp level ensures the transient voltage seen by downstream devices stays well below the 40V to 60V absolute maximum ratings typical of automotive-qualified ICs, preventing gate oxide breakdown and junction damage.
How does the SM6F26AY's SOD128 Flat package benefit PCB layout on automotive ECU connector interfaces?
The SOD128 Flat package measures 3.0 mm × 2.5 mm with a flat lead design that minimizes parasitic inductance, typically below 1 nH. This low inductance is critical for fast TVS response on CAN bus and power input connectors, where a parasitic inductance above 5 nH would increase the initial clamping voltage spike by 5–10V during the first 5 ns of a transient event.
Is the SM6F26AY qualified for automotive use and what temperature range does it cover?
Yes, the SM6F26AY is AEC-Q101 qualified for automotive applications and operates across a junction temperature range of -40°C to +150°C. This covers the full temperature profile required for body control modules, engine management ECUs, and transmission controllers installed in under-hood locations where ambient temperatures regularly exceed 105°C.
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STMicroelectronics is a global semiconductor leader serving customers across the spectrum of electronics applications. ST's products are found in a wide range of applications including automotive, industrial, personal electronics, and communications.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 10+ | $0.3500 | $3.50 |
| 100+ | $0.2500 | $25.00 |
| 250+ | $0.2420 | $60.50 |
| 500+ | $0.1900 | $95.00 |
| 1000+ | $0.1720 | $172.00 |
| 3000+ | $0.1594 | $478.32 |
In Stock · 24h Response · Worldwide Shipping
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