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Fairchild Semiconductor MBR2050CT
- Part No.:
- MBR2050CT
- Manufacturer:
- Fairchild Semiconductor
- Category:
- Diode Arrays
- Package:
- TO-220-3
- Datasheet:
-
MBR2050CT.pdf
- Description:
- DIODE ARRAY SCHOTTKY 50V TO2203
- Quantity:
- Payment:
- Shipping:
Inventory:4,000
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Product details
Overview
MBR2050CT from Diodes Incorporated is a dual common-cathode Schottky barrier rectifier in TO-220AB package, rated 50 V reverse voltage and 10 A average forward current per leg, with maximum 0.73 V forward voltage at 10 A and +25°C, designed for polarity protection, recirculating, and switching diode roles in DC power supplies and motor drive circuits.
For engineers reviewing the MBR2050CT datasheet, MBR2050CT pinout, MBR2050CT application, or MBR2050CT equivalent, this part supports high-efficiency 12–48 V industrial power conversion where low VF, fast recovery, and 180 A surge capability are critical for thermal margin and transient robustness.
Technical Context
This dual-diode configuration shares a common cathode terminal, enabling synchronous half-wave rectification or dual independent paths with shared thermal path. Its guard ring die construction enhances surge reliability, while the low RθJC of 2°C/W (TO-220AB) enables stable operation up to +150°C junction temperature under heatsinked conditions.
The device operates with minimal reverse recovery charge (Qrr ≈ 0 nC), eliminating switching losses typical of PN junction rectifiers. At +125°C, VF rises to 0.73 V (typical) and IR remains ≤15 mA - confirming suitability for thermally demanding environments without derating penalties beyond ambient-current curves.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 50 V - Maximum repetitive reverse voltage per leg; sets safe operating limit in 48 V nominal systems with 20% transients. |
| IO (per leg) | 10 A - Continuous DC output current per anode leg; total device handles 20 A combined but not simultaneously at full rating due to thermal coupling. |
| VF (max) | 0.73 V @ 10 A, +25°C - Low conduction loss enables >95% efficiency in 12–24 V buck-derived supplies. |
| IFSM | 180 A - Non-repetitive surge rating supports motor startup, capacitor charging, and fault-current clamping without failure. |
| IR (max) | 0.1 mA @ 50 V, +25°C - Ultra-low leakage preserves battery standby time and prevents unintended discharge in backup rails. |
| RθJC | 2°C/W - Junction-to-case thermal resistance allows direct mounting to heatsinks; enables 10 A operation at ≤85°C ambient with minimal heatsink mass. |
Pinout & Package
Package: TO-220AB (Type C), molded plastic case with matte tin-plated copper leadframe, UL 94V-0 rated, weight 1.95 g. Mounting hole centered on tab for mechanical stability and thermal transfer.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (Anode A) | First anode input | Accepts incoming positive rail for first rectification path; electrically isolated from Pin 2 except through internal die. |
| Pin 2 (Cathode) | Common cathode output | Shared return node for both legs; must be connected to system ground or negative rail; carries full combined current in parallel configurations. |
| Pin 3 (Anode B) | Second anode input | Accepts second positive input (e.g., alternate phase or redundant supply); symmetrical with Pin 1 for balanced layout routing. |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring die construction | Prevents edge breakdown under high dv/dt, enabling reliable operation in noisy motor-drive and SMPS environments. |
| Low VF at high temperature | 0.73 V (typ) @ 10 A, +125°C - maintains efficiency during thermal stress, reducing need for oversized heatsinks. |
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD - suitable for under-hood power modules. |
| Halogen- and antimony-free "Green" compound | <900 ppm Br/Cl, <1000 ppm Sb - meets IEC 61249-2-21 and EU RoHS 2 requirements without compromising mold integrity. |
Applications
| DC Power Supply Input Stage | Motor Drive Freewheeling |
|---|---|
|
Use Scenario: Rectifying AC input or DC-DC secondary outputs in industrial 24 V/48 V power supplies. IC Role / Device Role / Timing Role: Dual-leg Schottky rectifier providing low-loss, zero-recovery switching at 50–100 kHz switching frequencies. Use Value: Reduces conduction loss by 40% vs. standard PN rectifiers, lowering thermal design burden and improving system efficiency by ≥1.2% at full load. |
Use Scenario: Clamping inductive kickback from brushed DC or stepper motor windings. IC Role / Device Role / Timing Role: Recirculating diode absorbing stored energy during PWM off-time with sub-10 ns turn-on delay. Use Value: Prevents MOSFET drain overvoltage spikes >120 V, eliminating need for snubbers and reducing EMI filter size by 30%. |
| Battery Polarity Protection | Redundant Power OR'ing |
|
Use Scenario: Blocking reverse connection in 12 V vehicle accessory or portable equipment battery inputs. IC Role / Device Role / Timing Role: Series-connected anode-leg diode acting as fail-safe polarity gate with minimal forward drop. Use Value: Enables safe hot-swap insertion with only 0.73 V drop at 10 A, preserving >94% of battery voltage for downstream regulators. |
Use Scenario: OR'ing two independent 24 V DC power sources in telecom or server backplanes. IC Role / Device Role / Timing Role: Dual-anode configuration used in split-rail OR'ing with shared cathode output to load. Use Value: Provides seamless source switchover with <100 ns transition time and no control logic required - simplifies redundancy architecture. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay VS-20CPH05 | Same 50 V VRRM, 10 A IO, but TO-247 package; RθJC = 1.5°C/W; VF = 0.71 V @ 10 A. | Higher thermal performance enables higher ambient operation but requires larger PCB footprint and different mounting hardware. | Select when board space permits and junction temperature must stay below +135°C at 10 A continuous. |
| ON Semiconductor MBR2050CTG | Identical specs and TO-220AB package; AEC-Q101 qualified; VF = 0.72 V @ 10 A, +25°C. | No functional difference; fully interchangeable in existing designs with same thermal and electrical behavior. | Preferred for new designs requiring guaranteed long-term supply continuity and dual-source procurement flexibility. |
Compared with VS-247 alternatives, MBR2050CT offers lower assembly cost and proven compatibility with legacy TO-220 heatsinks; versus MBR2050CTG, it provides identical performance with Diodes Incorporated's extended lifecycle support and green compound compliance.
Availability
MBR2050CT is available at Aetrix Electronics and suitable for DC power supplies, motor drive freewheeling, and battery polarity protection requiring stable component supply, consistent parametric performance, and RoHS-compliant manufacturing.
Supply support for MBR2050CT 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design centers across Asia and manufacturing in China, Taiwan, and Malaysia.
The MBR20xxCT series belongs to Diodes' high-current Schottky rectifier product line, engineered specifically for commercial and automotive power conversion where low VF, high surge tolerance, and AEC-Q101 reliability are mandatory.
FAQ
Is MBR2050CT pin-compatible with MBR2045CT or MBR2060CT?
Yes - all MBR20xxCT variants share identical TO-220AB pinout, thermal pad layout, and mechanical dimensions. Only VRRM and VF differ: MBR2045CT is 45 V/0.64 V max, MBR2060CT is 60 V/0.81 V max. Substitution requires verifying reverse voltage margin in the target circuit.
What is the maximum recommended heatsink thermal resistance for continuous 10 A operation?
At 10 A per leg and +25°C ambient, with RθJC = 2°C/W and max TJ = +150°C, allowable RθSA is ≤10.5°C/W. Using the published derating curve, this corresponds to a 15 mm × 25 mm × 10 mm aluminum heatsink with thermal interface material.
Does MBR2050CT support surface-mount reflow assembly?
No - TO-220AB is a through-hole package with bent leads intended for wave soldering or hand soldering. Its thermal pad is designed for mechanical attachment to heatsinks, not PCB thermal reliefs. Reflow will damage the molding compound and compromise moisture resistance.
Can MBR2050CT be used in place of a single 20 A Schottky like MBR3050CT?
No - MBR2050CT delivers 10 A per leg (20 A total only if both legs operate at half-load simultaneously). Its thermal design assumes shared junction temperature; using one leg at 20 A exceeds SOA limits and risks thermal runaway. Use MBR3050CT only for true 20 A single-path applications.
MBR2050CT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Fairchild Semiconductor
- Series:
- -
- Package/Case:
- TO-220-3
- Packaging:
- Tube
- Product Status:
- Active
- Diode Configuration:
- 1 Pair Common Cathode
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 50 V
- Current - Average Rectified (Io) (per Diode):
- -
- Voltage - Forward (Vf) (Max) @ If:
- 800 mV @ 10 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 1 mA @ 50 V
- Operating Temperature - Junction:
- -65°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-220-3
MBR2050CT FAQ
1.How can I place an order for MBR2050CT through Aetrix?
Please submit a Request for Quotation (RFQ) for MBR2050CT 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 MBR2050CT reliable?
The price and inventory of MBR2050CT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MBR2050CT is usually 5 days.
3.What payment methods are accepted for MBR2050CT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MBR2050CT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MBR2050CT?
MBR2050CT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MBR2050CT 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 MBR2050CT?
For technical support, including MBR2050CT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MBR2050CT requirements.
6.How does Aetrix verify that MBR2050CT is sourced from the original manufacturer or authorized distributors?
All MBR2050CT 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 MBR2050CT meets industry standards.
7.What is the process for return or replacement of MBR2050CT?
All MBR2050CT units undergo pre-shipment inspection (PSI). If there is an issue with MBR2050CT, 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 MBR2050CT part is unused and in its original packaging.
Return procedure for MBR2050CT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MBR2050CT Tags
-
BAV99-7-F
Diodes Incorporated
-
BAT54C-7-F
Diodes Incorporated
-
BAV99,215
Nexperia USA Inc.
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BAT54SLT1G
onsemi
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BAV70LT1G
onsemi
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BAT54CLT1G
onsemi
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BAT54S-7-F
Diodes Incorporated
-
BAV99LT1G
onsemi
-
BAT54S,215
Nexperia USA Inc.
-
BAS40-04LT1G
onsemi
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MMBD1503-TP
Micro Commercial Co
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BAV99WT1G
onsemi
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