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Vishay General Semiconductor - Diodes Division 30CTQ050
- Part No.:
- 30CTQ050
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- Diode Arrays
- Package:
- TO-220-3
- Datasheet:
-
30CTQ050.pdf
- Description:
- DIODE ARR SCHOTT 50V 15A TO2203
- Quantity:
- Payment:
- Shipping:
Inventory:8,147
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Product details
Overview
30CTQ050 from Vishay is a 30 A center-tap Schottky rectifier optimized for low forward voltage drop (0.56 V @ 15 A, TJ = 125°C) and rated for 50 V reverse voltage, operating up to 150°C junction temperature. It serves as a high-frequency freewheeling diode or reverse battery protection device in DC-DC converters and switching power supplies.
For engineers reviewing the 30CTQ050 datasheet, 30CTQ050 pinout, 30CTQ050 application, or 30CTQ050 equivalent, key selection factors include its per-leg thermal resistance (3.25°C/W), 1000 A non-repetitive surge rating, center-tap configuration, and TO-220AB package compatibility with standard heatsink mounting.
Technical Context
This dual-anode, common-cathode Schottky rectifier uses proprietary barrier technology enabling stable operation at 150°C junction temperature while maintaining low VF and moderate IR. Its guard ring structure enhances ruggedness against avalanche stress and long-term reliability under repetitive switching.
The device supports high-frequency operation due to low junction capacitance (720 pF @ 5 V) and fast dv/dt capability (10,000 V/μs). Thermal performance is defined per leg (RthJC = 3.25°C/W) and per package (RthJC = 1.63°C/W), requiring careful case temperature management per Fig. 5.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IF(AV) | 30 A total (15 A per leg), rectangular waveform, defines continuous DC output current capability in bridge or center-tap topologies |
| VRRM | 50 V maximum repetitive reverse voltage, sets safe blocking margin in 48 V bus or 36 V automotive systems |
| VF @ 15 A, 125°C | 0.56 V per leg, directly determines conduction loss and thermal load in high-efficiency SMPS designs |
| TJ Range | –55°C to +150°C, enables use in under-hood or industrial environments without derating below 125°C |
| RthJC (per leg) | 3.25°C/W, specifies minimum heatsink requirement when one leg conducts full 15 A average current |
| IRM @ 125°C | 45 mA per leg, impacts leakage-related power loss and thermal runaway risk in high-temperature bias conditions |
| dv/dt Rating | 10,000 V/μs, ensures immunity to false turn-on during fast-switching transients in synchronous rectifier circuits |
Pinout & Package
30CTQ050 is supplied in JEDEC TO-220AB package with center-tap configuration: Pin 1 and Pin 2 are anodes, Pin 3 is common cathode (base tab). The metal tab is electrically connected to the cathode and must be isolated from chassis unless referenced to system ground.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode (Leg A) | Input terminal for first half of center-tapped secondary winding or independent input path |
| Pin 2 | Anode (Leg B) | Input terminal for second half of center-tapped secondary winding or alternate input path |
| Pin 3 / Tab | Common Cathode | Output node shared by both legs; electrically tied to metal tab requiring thermal and electrical isolation planning |
Key Features
| Feature | Design Value |
|---|---|
| Center-tap configuration | Enables single-package implementation of full-wave rectification without external wiring between anodes |
| Guard ring structure | Improves edge termination robustness, raising avalanche energy rating to 13 mJ per leg and supporting unclamped inductive switching |
| High-purity epoxy encapsulation | Provides enhanced moisture resistance and mechanical strength for industrial-grade reliability under thermal cycling |
| Low VF slope resistance | 8.47 mΩ per leg minimizes I²R losses at high peak currents, critical for high-duty-cycle converter operation |
| TO-220AB mechanical standard | Ensures compatibility with legacy heatsink footprints and automated assembly tooling across OEM production lines |
Applications
| Switch-Mode Power Supply Output Rectification | Reverse Battery Protection |
|---|---|
Use Scenario: Used in the secondary-side rectification stage of 48 V input telecom or server PSUs delivering up to 30 A DC output. IC Role / Device Role / Timing Role: Dual-leg Schottky rectifier providing low-loss, high-frequency AC-to-DC conversion with center-tap transformer interface. Use Value: 0.56 V forward drop at 15 A reduces conduction loss by ~35% versus comparable 60 V parts, lowering thermal design burden. | Use Scenario: Installed between vehicle battery and ECU to block reverse polarity connection during service or jump-start events. IC Role / Device Role / Timing Role: Bidirectional blocking device leveraging common-cathode topology to protect downstream 50 V-rated circuitry. Use Value: 50 V VRRM provides 20% margin over 42 V cranking voltage, while 150°C operation survives under-hood ambient extremes. |
| DC-DC Converter Freewheeling Diode | Industrial Motor Drive Snubber Network |
Use Scenario: Placed across the low-side switch in a 24 V buck converter driving solenoids or actuators with 15 A peak load current. IC Role / Device Role / Timing Role: Fast-recovery freewheeling path handling inductive kickback during MOSFET off-time. Use Value: 10,000 V/μs dv/dt rating prevents spurious conduction during 50 ns switching edges, ensuring clean current commutation. | Use Scenario: Integrated into RC snubber networks across IGBTs in 3-phase VFDs operating in dusty, high-temperature factory environments. IC Role / Device Role / Timing Role: High-reliability clamping diode absorbing turn-off energy spikes during motor phase commutation. Use Value: Guard ring and 13 mJ avalanche energy rating sustain repeated unclamped inductive switching without degradation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay 30CTQ060 | 60 V VRRM, identical package and thermal specs; VF slightly higher (0.57 V @ 15 A, 125°C) | Better suited for 48 V systems with higher transient margin; less optimal for 36 V nominal rails where 50 V rating improves efficiency | Select 30CTQ050 when system max reverse voltage ≤ 50 V and lowest conduction loss is prioritized |
| ON Semiconductor MBR3050CT | Same 50 V rating and TO-220 package; VF = 0.72 V @ 15 A (25°C), no specified 125°C VF data | Limited high-temperature validation; lacks published 150°C operation and guard ring ruggedness metrics | Choose 30CTQ050 for designs requiring verified 125°C performance and industrial-grade avalanche endurance |
Compared with 30CTQ060 and MBR3050CT, the 30CTQ050 delivers the lowest confirmed forward voltage at elevated temperature and explicit 150°C qualification-critical for thermally constrained industrial and automotive power stages where efficiency and reliability must co-optimize.
Availability
30CTQ050 is available at Aetrix Electronics and suitable for switching power supplies, reverse battery protection circuits, and DC-DC converter freewheeling applications requiring stable component supply and long-lifecycle support.
Supply support for 30CTQ050 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
Vishay Intertechnology is a global semiconductor manufacturer specializing in discrete components, sensors, and passive elements, with leadership in power rectification and high-reliability packaging.
The 30CTQ... series was developed for high-efficiency, high-temperature power conversion in industrial and telecom infrastructure, emphasizing low VF, rugged avalanche behavior, and extended thermal operation.
FAQ
What is the maximum average forward current rating for 30CTQ050?
The 30CTQ050 has a total IF(AV) rating of 30 A with a center-tap configuration-meaning 15 A per leg under rectangular waveform conditions at TC = 105°C and 50% duty cycle. This rating assumes proper heatsinking per the 3.25°C/W per-leg thermal resistance and adherence to Fig. 5 derating curves. Exceeding this without thermal margin risks junction overheating beyond the 150°C limit.
Does 30CTQ050 support operation at 150°C junction temperature?
Yes, the 30CTQ050 is explicitly rated for TJ = –55°C to +150°C, with all key parameters-including VF, IRM, and avalanche energy-validated across this full range. Its proprietary barrier technology and high-purity epoxy encapsulation enable reliable 150°C operation, making it suitable for under-hood automotive or enclosed industrial power modules where ambient temperatures exceed 100°C.
What is the pin configuration of 30CTQ050 in TO-220AB package?
The 30CTQ050 in TO-220AB has three terminals: Pin 1 and Pin 2 are independent anodes (Leg A and Leg B), and Pin 3 (metal tab) is the common cathode. The tab is electrically active and must be isolated unless intentionally tied to system ground. This center-tap layout eliminates external interconnects needed in dual-diode solutions, simplifying PCB layout for full-wave rectifiers.
How does the guard ring in 30CTQ050 improve reliability?
The guard ring in 30CTQ050 enhances edge termination robustness, increasing avalanche energy rating to 13 mJ per leg and enabling sustained operation under unclamped inductive switching (per Fig. 8 test circuit). This structural feature mitigates premature breakdown at junction peripheries, extending lifetime in motor drive snubbers and flyback converter freewheel paths where repetitive voltage overshoot occurs.
Is 30CTQ050 lead-free and RoHS compliant?
Yes, the 30CTQ050 is manufactured with lead-free terminations and complies with RoHS Directive 2011/65/EU. Per Vishay documentation (Document #93306), the part is qualified to Industrial Level standards and carries PbF marking when ordered in lead-free version; standard production units meet RoHS requirements without additional suffixes.
30CTQ050 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Series:
- -
- Package/Case:
- TO-220-3
- Packaging:
- Tube
- Product Status:
- Obsolete
- Diode Configuration:
- 1 Pair Common Cathode
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 50 V
- Current - Average Rectified (Io) (per Diode):
- 15A
- Voltage - Forward (Vf) (Max) @ If:
- 620 mV @ 15 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 800 µA @ 50 V
- Operating Temperature - Junction:
- -55°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-220-3
30CTQ050 FAQ
1.How can I place an order for 30CTQ050 through Aetrix?
Please submit a Request for Quotation (RFQ) for 30CTQ050 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 30CTQ050 reliable?
The price and inventory of 30CTQ050 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 30CTQ050 is usually 5 days.
3.What payment methods are accepted for 30CTQ050?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 30CTQ050 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 30CTQ050?
30CTQ050 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 30CTQ050 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 30CTQ050?
For technical support, including 30CTQ050 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 30CTQ050 requirements.
6.How does Aetrix verify that 30CTQ050 is sourced from the original manufacturer or authorized distributors?
All 30CTQ050 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 30CTQ050 meets industry standards.
7.What is the process for return or replacement of 30CTQ050?
All 30CTQ050 units undergo pre-shipment inspection (PSI). If there is an issue with 30CTQ050, 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 30CTQ050 part is unused and in its original packaging.
Return procedure for 30CTQ050:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
30CTQ050 Tags
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BAV99-7-F
Diodes Incorporated
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BAT54C-7-F
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BAV99,215
Nexperia USA Inc.
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BAT54SLT1G
onsemi
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BAV70LT1G
onsemi
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BAT54CLT1G
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BAT54S-7-F
Diodes Incorporated
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BAV99LT1G
onsemi
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BAT54S,215
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BAS40-04LT1G
onsemi
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MMBD1503-TP
Micro Commercial Co
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BAV99WT1G
onsemi
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