TMBAT49FILM STMicroelectronics Schottky Diode (Other) In Stock
The TMBAT49FILM is a single silicon fast-recovery Schottky rectifier diode with a 1 V maximum forward voltage in a MELF (LELF) surface-mount package. It features an isolated case configuration and e3 Pb-free finish for RoHS-compliant SMT assembly. Available from stock worldwide; note 25-week factory lead time for volume orders.
- Manufacturer
- STMicroelectronics
- Package
- Other
- Pin Count
- 2
- Lifecycle
- END OF LIFE
- Datasheet
- TMBAT49FILM Datasheet PDF
- Category
- Schottky Diode
- Price
- From $0.0976(MOQ 10)
- Temp Range
- -65.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Silicon fast-recovery rectifier with 1 V maximum forward voltage enabling low-loss high-frequency rectification in power supply and switching circuits
- Single isolated MELF package (JESD-30 code O-LELF-R2) offering cylindrical low-profile SMT form factor with superior self-centering during solder reflow
- RoHS e3 Pb-free finish supporting compliant manufacturing in consumer, industrial, and automotive-adjacent power converter designs
Applications
The TMBAT49FILM suits high-frequency rectification in switch-mode power supplies, flyback snubber circuits, and freewheeling diode positions where its fast recovery and 1 V forward voltage minimize switching losses. Its MELF cylindrical body self-centers on SMT pads during reflow, improving placement accuracy in automated assembly lines for compact power modules. The isolated case configuration also allows direct PCB-mount without additional insulating hardware.
Specifications
| Factory Lead Time | 25Weeks |
| YTEOL | 1 |
| Application | FAST RECOVERY |
| Case Connection | ISOLATED |
| Configuration | SINGLE |
| Diode Element Material | SILICON |
| Diode Type | RECTIFIER DIODE |
| Forward Voltage-Max (VF) | 1V |
| JESD-30 Code | O-LELF-R2 |
| JESD-609 Code | e3 |
| Non-rep Pk Forward Current-Max | 3A |
| Number of Elements | 1 |
| Number of Phases | 1 |
| Output Current-Max | 0.5A |
| Package Body Material | GLASS |
| Package Shape | ROUND |
| Package Style | LONG FORM |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Rep Pk Reverse Voltage-Max | 80V |
| Reverse Current-Max | 200 µA |
| Reverse Test Voltage | 80V |
| Surface Mount | YES |
| Technology | SCHOTTKY |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | WRAP AROUND |
| Terminal Position | END |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8541.10.00.70 |
| Country of Origin | Mainland China |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the maximum forward voltage and diode type of TMBAT49FILM, and why does this matter in switching power supplies?
The TMBAT49FILM is a silicon fast-recovery rectifier diode with a maximum forward voltage of 1 V. In a 5 V switch-mode power supply, a 1 V drop across the output rectifier represents a 20% voltage-headroom loss, so fast-recovery types like this are chosen when switching frequency exceeds 100 kHz, where standard PN diodes have excessive reverse recovery losses.
Why is the MELF package advantageous over an SOD-123 SMD diode for high-frequency rectifier applications?
The MELF cylindrical body provides a larger thermal contact area with the PCB pad than a flat SOD-123 package, improving heat dissipation at equivalent power levels. The self-centering behavior during solder reflow also reduces placement offset in automated assembly, making the TMBAT49FILM a preferred choice for compact power converter boards running at switching frequencies above 200 kHz.
What is the factory lead time for TMBAT49FILM and how should procurement teams plan for volume orders?
The factory lead time is 25 weeks, which is unusually long for a discrete diode. Procurement teams designing the TMBAT49FILM into production hardware should place blanket purchase orders at least 6 months ahead of production start. Distributor safety stock may cover smaller prototype and low-volume needs, but high-volume production planning requires lead-time buffer in the supply chain.
Is TMBAT49FILM suitable for designs requiring long-term component availability?
The TMBAT49FILM has a YTEOL (years to end of life) rating of only 1 year, indicating it is approaching end-of-life status. Designers starting new products should consider whether a last-time-buy or an alternative fast-recovery MELF diode with a longer YTEOL is a better long-term choice, to avoid mid-production obsolescence and costly re-qualification of the PCB design.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 10+ | $0.4050 | $4.05 |
| 100+ | $0.2351 | $23.51 |
| 500+ | $0.1800 | $90.00 |
| 1000+ | $0.1733 | $173.30 |
| 4500+ | $0.0989 | $445.05 |
| 7500+ | $0.0976 | $732.00 |
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