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onsemi MBR460MFST1G
- Part No.:
- MBR460MFST1G
- Manufacturer:
- onsemi
- Category:
- Single Diodes
- Package:
- 8-PowerTDFN, 5 Leads
- Datasheet:
-
MBR460MFST1G.pdf
- Description:
- DIODE SCHOTTKY 60V 4A 5DFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,747
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Product details
Overview
MBR460MFST1G from onsemi is a 4 A, 60 V Schottky barrier rectifier in SO-8 FL (Case 488AA) package, featuring low forward voltage drop (0.65 V at 4 A, 125°C), 175°C maximum junction temperature, and AEC-Q101 qualification for automotive output rectification up to 2 MHz.
For engineers reviewing the MBR460MFST1G datasheet, pinout, applications, or equivalent options, key selection criteria include thermal resistance (RθJC = 2.4°C/W), repetitive surge current rating (IFSM = 40 A), reverse leakage (≤20 mA at 60 V, 25°C), and Pb-free/halide-free compliance per JEDEC standards.
Technical Context
This device employs a planar Schottky barrier structure with guardring for stress protection, enabling high-efficiency switching in DC-DC converters and freewheeling paths. Its low VF minimizes conduction loss while supporting high-frequency operation up to 2 MHz without significant switching loss penalties.
The SO-8 FL flat-lead package provides enhanced thermal performance via exposed pad (Pin 5) and enables post-mount inspection and probing. It meets MSL 1 and UL 94-V0 flammability requirements, with 100% matte tin lead finish rated for 260°C/10s soldering.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Max Reverse Voltage | 60 V - Supports 48 V automotive bus and 36 V industrial DC systems with margin |
| Avg Forward Current | 4.0 A at TC = 165°C - Enables compact heatsinking in space-constrained power supplies |
| Forward Voltage | 0.65 V @ 4 A, 125°C - Reduces conduction loss by ~30% vs. standard silicon diodes at same current |
| Junction Temp Range | −55°C to +175°C - Qualified for under-hood automotive environments and industrial edge nodes |
| Thermal Resistance | RθJC = 2.4°C/W - Allows >3 W continuous dissipation with minimal case-to-heat-sink delta-T |
| Surge Current | IFSM = 40 A - Withstands inrush and transient overloads in motor drive and converter startup |
| Reverse Leakage | ≤20 mA @ 60 V, 25°C - Maintains efficiency in standby modes of battery-powered systems |
Pinout & Package
SO-8 FL (Case 488AA), 5 mm × 6 mm body with exposed thermal pad (Pin 5), 1.27 mm pitch, RoHS-compliant matte tin leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3 | Anode | Parallel anode connections reduce series resistance and improve current sharing across internal die segments |
| 4 | No Connect | Internally unconnected; must remain floating or grounded per layout guidelines to avoid parasitic coupling |
| 5 | Cathode / Exposed Pad | Primary cathode terminal and thermal path - requires direct PCB copper connection for optimal RθJA |
Key Features
| Feature | Design Value |
|---|---|
| Guardring Protection | Prevents edge breakdown under high dv/dt or mechanical stress, improving long-term reliability in automotive transients |
| Low Power Loss | Combined VF and RθJC enable >92% efficiency in 12 V → 5 V synchronous buck secondaries |
| Post-Mount Inspection | Flat-lead geometry allows optical and electrical probe access after reflow, reducing test escape risk |
| AEC-Q101 Qualification | Validated for automotive-grade temperature cycling, humidity, and mechanical shock per JESD22 standards |
Applications
| Automotive DC-DC Converters | USB-C PD Adapters |
|---|---|
Use Scenario: Secondary-side rectification in 48 V–12 V bidirectional buck-boost converters for ADAS ECUs. IC Role / Device Role / Timing Role: Output rectifier handling 4 A continuous current with <100 ns recovery to minimize switching loss. Use Value: 0.65 V VF reduces heat generation by 1.8 W vs. Si diode alternative, enabling smaller heatsinks in confined ECU enclosures. | Use Scenario: Synchronous rectification in 100 W USB-C power adapters operating at 500 kHz–1 MHz. IC Role / Device Role / Timing Role: High-frequency freewheeling diode replacing MOSFET gate drivers in cost-sensitive designs. Use Value: 2.4°C/W RθJC sustains full 4 A load without derating at 65°C ambient, eliminating need for forced air cooling. |
| Industrial Motor Drives | Portable Medical Chargers |
Use Scenario: Freewheeling path across inductive gate-drive transformers in servo amplifier half-bridges. IC Role / Device Role / Timing Role: Clamp diode absorbing stored energy during MOSFET turn-off with minimal voltage overshoot. Use Value: 40 A non-repetitive surge rating handles worst-case inductive kickback without failure in 24 V control circuits. | Use Scenario: Output rectification in ultra-compact Li-ion battery chargers for portable ultrasound devices. IC Role / Device Role / Timing Role: Low-profile Schottky rectifier enabling <8 mm board height in sealed medical enclosures. Use Value: SO-8 FL package with exposed pad achieves 3× better thermal performance than SMA packages at same footprint. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NRVB460MFST1G | AEC-Q101 qualified with PPAP capability; identical electrical specs but distinct traceability and control flow for automotive production | Required for Tier-1 automotive programs needing site-specific change control and PPAP documentation | Select NRVB460MFST1G only when automotive PPAP submission and unique lot traceability are contractually mandated |
| MBR460CTG | TO-220AB package, dual-die common-cathode configuration; higher RθJA (35°C/W), no exposed thermal pad | Suitable for through-hole prototyping or legacy designs where SO-8 FL footprint is unavailable | Choose MBR460CTG only when manual assembly, higher thermal budget, or dual-output topology is required |
Compared with MBR460MFST1G, NRVB460MFST1G adds automotive process controls without electrical trade-offs, while MBR460CTG sacrifices surface-mount efficiency and thermal performance for mechanical robustness and dual-diode integration.
Availability
MBR460MFST1G is available at Aetrix Electronics and suitable for automotive DC-DC converters, USB-C power adapters, and industrial motor drives requiring stable component supply and long-term lifecycle support.
Supply support for MBR460MFST1G 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
onsemi (Semiconductor Components Industries, LLC) is a global semiconductor supplier delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, and consumer markets.
The MBR460MFST1G belongs to onsemi's SWITCHMODE® Schottky rectifier family, engineered specifically for high-frequency, high-efficiency secondary-side rectification in space- and thermally-constrained power systems.
FAQ
What is the maximum junction temperature rating for MBR460MFST1G?
The MBR460MFST1G has a maximum operating junction temperature of +175°C, validated per JEDEC JESD22-A108 and supported by its 2.4°C/W thermal resistance. This rating allows reliable operation in under-hood automotive environments and high-ambient industrial settings where thermal management is constrained. The MBR460MFST1G maintains specified electrical parameters up to this limit when mounted on a 600 mm² 1 oz. copper pad.
Is MBR460MFST1G suitable for automotive applications?
Yes, the MBR460MFST1G is AEC-Q101 qualified and designed for automotive use, including engine control units and ADAS power supplies. While not PPAP-capable like the NRVB460MFST1G variant, it meets all stress-test requirements for temperature cycling, humidity, and mechanical shock. The MBR460MFST1G is appropriate for non-tier-1 automotive designs where full PPAP documentation is not required.
What does the "T1G" suffix mean in MBR460MFST1G?
The "T1G" suffix in MBR460MFST1G indicates tape-and-reel packaging: "T" = Tape & Reel, "1" = 1500 units per reel, and "G" = Pb-free and halide-free compliance per JEDEC J-STD-609. This packaging format ensures automated placement compatibility and environmental compliance. The MBR460MFST1G is shipped in moisture-sensitive level 1 packaging, requiring no dry-pack handling prior to assembly.
How does the SO-8 FL package of MBR460MFST1G improve thermal performance?
The SO-8 FL (Case 488AA) package of MBR460MFST1G integrates an exposed thermal pad (Pin 5) that serves as both cathode and primary heat path, achieving RθJC = 2.4°C/W when soldered to ≥600 mm² of 1 oz. copper. This is 4× better than standard SO-8 packages without thermal pads. The MBR460MFST1G's flat-lead design also eliminates gull-wing parasitics, improving high-frequency stability in switching regulators.
Can MBR460MFST1G replace standard silicon rectifiers in existing designs?
Yes, the MBR460MFST1G can directly replace 60 V, 4 A silicon rectifiers such as 1N5408 or UF4007 in most applications, provided layout accommodates its SO-8 FL footprint and thermal pad. Its lower VF (0.65 V vs. ~1.1 V) reduces conduction loss and heat generation, but designers must verify reverse leakage behavior at elevated temperatures. The MBR460MFST1G offers immediate efficiency gains without circuit redesign in flyback and buck converter outputs.
MBR460MFST1G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 8-PowerTDFN, 5 Leads
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 60 V
- Current - Average Rectified (Io):
- 4A
- Voltage - Forward (Vf) (Max) @ If:
- 740 mV @ 4 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 200 µA @ 60 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 5-DFN (5x6) (8-SOFL)
- Operating Temperature - Junction:
- -55°C ~ 175°C
MBR460MFST1G FAQ
1.How can I place an order for MBR460MFST1G through Aetrix?
Please submit a Request for Quotation (RFQ) for MBR460MFST1G 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 MBR460MFST1G reliable?
The price and inventory of MBR460MFST1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MBR460MFST1G is usually 5 days.
3.What payment methods are accepted for MBR460MFST1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MBR460MFST1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MBR460MFST1G?
MBR460MFST1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MBR460MFST1G 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 MBR460MFST1G?
For technical support, including MBR460MFST1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MBR460MFST1G requirements.
6.How does Aetrix verify that MBR460MFST1G is sourced from the original manufacturer or authorized distributors?
All MBR460MFST1G 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 MBR460MFST1G meets industry standards.
7.What is the process for return or replacement of MBR460MFST1G?
All MBR460MFST1G units undergo pre-shipment inspection (PSI). If there is an issue with MBR460MFST1G, 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 MBR460MFST1G part is unused and in its original packaging.
Return procedure for MBR460MFST1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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