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Taiwan Semiconductor Corporation MBRAD860H
- Part No.:
- MBRAD860H
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Datasheet:
-
MBRAD860H.pdf
- Description:
- 8A, 60V, SCHOTTKY RECTIFIER
- Quantity:
- Payment:
- Shipping:
Inventory:4,489
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Product details
Overview
MBRAD860H from Taiwan Semiconductor is an AEC-Q101-qualified 8 A, 60 V Schottky barrier rectifier in ThinDPAK package, featuring low forward voltage (0.68 V at 8 A, 25°C), high surge capability (400 A at 1 ms), and junction temperature rating up to +150°C. It serves as a freewheeling or reverse-battery protection diode in automotive DC/DC converters.
For engineers reviewing the MBRAD860H datasheet, MBRAD860H pinout, MBRAD860H application, or MBRAD860H equivalent, key selection criteria include its 2.4°C/W junction-to-lead thermal resistance, 150 A IFSM rating at 8.3 ms, RoHS/halogen-free compliance, and ThinDPAK mechanical compatibility with automated SMT placement.
Technical Context
The MBRAD860H uses a single-die Schottky structure optimized for low VF and fast switching, enabling high-efficiency operation in 100 kHz–1 MHz DC/DC topologies. Its 253 pF junction capacitance at 4 V reverse bias supports stable high-frequency performance without excessive ringing.
Thermal design leverages the ThinDPAK package's low RθJL (2.4°C/W) when mounted on an aluminum heatsink plate, allowing sustained 8 A conduction at ambient temperatures up to +85°C with proper PCB copper area.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Forward Current (IF) | 8 A continuous - supports high-current automotive power rails without forced air cooling |
| Peak Reverse Voltage (VRRM) | 60 V - suitable for 48 V system inputs and transient clamping in car lighting |
| Surge Current (IFSM) | 400 A at 1 ms - handles cold-crank and load-dump transients in reverse-battery protection |
| Forward Voltage (VF) | 0.68 V max at 8 A, 25°C - reduces conduction loss by ~30% vs. standard silicon rectifiers |
| Junction Temp Range | −55°C to +150°C - meets under-hood automotive thermal requirements per AEC-Q101 |
| Junction-to-Lead Rθ | 2.4°C/W - enables direct thermal path to PCB copper or heatsink for compact layout |
Pinout & Package
Package: ThinDPAK (JEDEC TO-252 variation AE), surface-mount, matte tin-plated leads, cathode indicated by band. Weight: 0.195 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (Anode) | Input current terminal | Connected to source-side of switching node; accepts up to 8 A continuous forward current |
| Pin 2 (Cathode) | Output current terminal | Connected to load or return path; marked by cathode band; carries full output current |
| Pin 3 (Tab / Drain) | Thermal & electrical connection | Exposed metal tab is electrically tied to cathode and provides primary heat dissipation path |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
| Low VF at high IF | 0.68 V max at 8 A ensures <1.5 W conduction loss at full rated current |
| High IFSM capability | 400 A surge rating enables robustness against 12 V battery jump-start and alternator load dump |
| Moisture sensitivity level 1 | No bake requirement before reflow; compatible with standard J-STD-020 assembly processes |
| Halogen-free & RoHS | Meets EU ELV and automotive OEM material declaration requirements |
Applications
| Automotive DC/DC Converters | Reverse Battery Protection |
|---|---|
Use Scenario: Step-down conversion from 48 V or 12 V battery to 3.3 V/5 V logic rails in ADAS ECUs. IC Role / Device Role / Timing Role: Freewheeling diode in synchronous or asynchronous buck topology. Use Value: Low VF minimizes power loss; 150°C TJ rating ensures stability during engine-off hot soak. | Use Scenario: Preventing damage when vehicle battery is connected with reversed polarity. IC Role / Device Role / Timing Role: Series-blocking diode placed between battery input and main power distribution. Use Value: 60 V VRRM withstands load-dump spikes; 400 A IFSM survives cranking surges. |
| Car Lighting Systems | Low-Voltage Inverters |
Use Scenario: LED headlamp driver with PWM dimming and overvoltage protection. IC Role / Device Role / Timing Role: Output rectifier in boost or SEPIC LED driver stage. Use Value: Fast recovery and low VF maintain efficiency at 200–500 kHz switching frequencies. | Use Scenario: 12 V to 24 V AC inverter for cabin fans or auxiliary outlets. IC Role / Device Role / Timing Role: Output rectification in full-bridge or center-tapped transformer secondary. Use Value: High surge rating accommodates motor startup currents; ThinDPAK fits space-constrained inverter PCBs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay V8P6 | Same 8 A / 60 V rating, but TO-220AC package; higher RθJA (40°C/W); no AEC-Q101 qualification | Requires heatsink mounting; not approved for automotive under-hood use | Select only for industrial non-automotive DC/DC where qualification is not required |
| ON Semiconductor SB860 | Identical electrical specs and ThinDPAK package; AEC-Q101 qualified; marking code differs (SB860 vs. 860) | Drop-in replacement in form, fit, and function; validated for same automotive applications | Preferred if dual-sourcing or second-source validation is needed for supply chain resilience |
Compared with V8P6, MBRAD860H offers superior thermal performance and automotive qualification; compared with SB860, it shares identical functionality but originates from Taiwan Semiconductor's qualified production line with distinct traceability and date-code format.
Availability
MBRAD860H is available at Aetrix Electronics and suitable for automotive DC/DC converters, reverse battery protection circuits, and car lighting systems requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for MBRAD860H 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, serving global automotive, industrial, and consumer markets since 1979.
The MBRAD860H belongs to TSC's AEC-Q101-qualified Schottky rectifier product line, engineered specifically for high-reliability automotive power conversion where low VF, high surge tolerance, and thermal robustness are critical.
FAQ
What is the maximum junction temperature rating for the MBRAD860H?
The MBRAD860H has a maximum junction temperature (TJ MAX) of +150°C, verified per AEC-Q101 stress testing. This rating allows reliable operation in under-hood automotive environments where ambient temperatures reach +105°C, provided thermal design maintains junction temperature below this limit. The MBRAD860H datasheet specifies derating curves confirming 8 A continuous current is sustainable up to +85°C ambient with appropriate PCB copper area.
Is the MBRAD860H pin-compatible with other ThinDPAK Schottky rectifiers?
Yes, the MBRAD860H uses the standard JEDEC TO-252 (ThinDPAK) outline with three terminals: anode, cathode, and exposed cathode-connected tab. Its pinout matches industry-standard ThinDPAK Schottky rectifiers such as SB860 and MBRB860, enabling direct PCB footprint reuse. The MBRAD860H marking "860" appears on the device body adjacent to the cathode band, consistent with common ThinDPAK identification conventions.
Does the MBRAD860H require moisture baking before reflow soldering?
No, the MBRAD860H has a moisture sensitivity level (MSL) of Level 1 per J-STD-020, meaning it is not moisture-sensitive and can be stored indefinitely at ambient conditions without dry-pack or baking. This eliminates pre-reflow bake steps and simplifies manufacturing for high-volume automotive SMT lines. The MBRAD860H's matte tin-plated leads also ensure reliable solderability per J-STD-002.
What is the typical forward voltage of the MBRAD860H at 8 A and 125°C?
The MBRAD860H exhibits a typical forward voltage of 0.58 V at 8 A and 125°C, with a maximum of 0.64 V under those conditions. This reduced VF at elevated temperature-compared to 0.68 V at 25°C-reflects the positive temperature coefficient of Schottky diodes and supports stable thermal behavior in automotive applications. The MBRAD860H datasheet confirms this value using pulse testing (PW = 0.3 ms) to avoid self-heating artifacts.
Can the MBRAD860H be used in reverse-battery protection for 48 V systems?
The MBRAD860H is rated for 60 V repetitive peak reverse voltage (VRRM), making it suitable for 48 V nominal systems where transients remain within specification. However, for robust reverse-battery protection in 48 V architectures, designers must verify that system-level clamping (e.g., TVS or Zener) limits reverse voltage across the MBRAD860H to ≤60 V during fault events. The MBRAD860H's 400 A surge rating at 1 ms further supports survivability during jump-start scenarios.
MBRAD860H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 60 V
- Current - Average Rectified (Io):
- 8A
- Voltage - Forward (Vf) (Max) @ If:
- 750 mV @ 8 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 100 µA @ 60 V
- Capacitance @ Vr, F:
- 253pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- ThinDPAK
- Operating Temperature - Junction:
- -55°C ~ 150°C
MBRAD860H FAQ
1.How can I place an order for MBRAD860H through Aetrix?
Please submit a Request for Quotation (RFQ) for MBRAD860H 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 MBRAD860H reliable?
The price and inventory of MBRAD860H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MBRAD860H is usually 5 days.
3.What payment methods are accepted for MBRAD860H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MBRAD860H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MBRAD860H?
MBRAD860H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MBRAD860H 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 MBRAD860H?
For technical support, including MBRAD860H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MBRAD860H requirements.
6.How does Aetrix verify that MBRAD860H is sourced from the original manufacturer or authorized distributors?
All MBRAD860H 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 MBRAD860H meets industry standards.
7.What is the process for return or replacement of MBRAD860H?
All MBRAD860H units undergo pre-shipment inspection (PSI). If there is an issue with MBRAD860H, 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 MBRAD860H part is unused and in its original packaging.
Return procedure for MBRAD860H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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