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STMicroelectronics FERD30M45CG-TR
- Part No.:
- FERD30M45CG-TR
- Manufacturer:
- STMicroelectronics
- Category:
- Diode Arrays
- Package:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Datasheet:
-
FERD30M45CG-TR.pdf
- Description:
- DIODE ARRAY FERD 45V 15A D2PAK
- Quantity:
- Payment:
- Shipping:
Inventory:5,267
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Product details
Overview
FERD30M45CG-TR from STMicroelectronics is a dual-center-tap field-effect rectifier in D2PAK package, rated for 45 V repetitive peak reverse voltage (VRRM), 30 A total average forward current (IF(AV)), and 0.35 V typical forward voltage drop (VF) at 125 °C and 7.5 A per diode. It delivers stable leakage current across full reverse voltage range and supports high-frequency switching in solar bypass junction boxes and SMPS.
For engineers reviewing the FERD30M45CG-TR datasheet, FERD30M45CG-TR pinout, FERD30M45CG-TR application, or FERD30M45CG-TR equivalent, key selection criteria include low VF for conduction loss reduction, thermal robustness up to 200 °C (D²PAK only), dual-diode center-tap configuration, and validated performance in photovoltaic bypass and DC-DC converter output stages.
Technical Context
This device integrates two independent Schottky-like rectifying elements in a single monolithic die with shared cathode (K) and separate anodes (A1, A2), enabling center-tap topology without external wiring. Its proprietary field-effect process suppresses reverse leakage drift-IR remains ≤50 mA at 125 °C and VRRM-while maintaining VF as low as 0.305 V (typ.) at 7.5 A/125 °C.
Thermal design is enabled by low Rth(j-c) of 1.05 °C/W (total, D2PAK), supporting high-power density layouts. The device operates up to 175 °C junction temperature continuously, and up to 200 °C under DC forward bias with no reverse voltage-a unique thermal rating specific to D²PAK packaging confirmed in Table 2 footnote (1).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 45 V - Maximum repetitive reverse blocking voltage per diode; defines safe operating margin in PV string bypass and SMPS secondary-side rectification. |
| IF(AV) per device | 30 A - Total average forward current capability with Tc = 155 °C; enables high-current solar module protection without parallel devices. |
| VF (typ.) | 0.35 V at IF = 7.5 A, Tj = 125 °C - Low conduction loss reduces power dissipation and improves system efficiency in thermally constrained environments. |
| IR (max) | 50 mA at VR = VRRM, Tj = 125 °C - Stable leakage ensures reliable blocking in high-temperature PV junction boxes without thermal runaway risk. |
| Rth(j-c) total | 1.05 °C/W - Junction-to-case thermal resistance for full device; allows accurate heatsink sizing for continuous 30 A operation in D2PAK. |
| Tj (max) | 175 °C continuous; 200 °C for DC forward mode only (D²PAK) - Extended thermal capability supports high ambient deployments in industrial and outdoor power systems. |
Pinout & Package
Package: D2PAK (TO-263AB), surface-mount, isolated tab, ECOPACK® compliant, UL94 V0 epoxy. Thermal pad electrically connected to cathode (K).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 | Anode 1 | Input terminal for first rectifying path; used with A2/K to form center-tapped dual-diode configuration. |
| A2 | Anode 2 | Input terminal for second rectifying path; enables symmetrical current sharing in bypass or dual-output topologies. |
| K | Cathode (common) | Shared output node; electrically tied to thermal pad; must be connected to system ground or return rail for thermal and electrical integrity. |
Key Features
| Feature | Design Value |
|---|---|
| Advanced field-effect rectifier process | Enables stable IR vs. VR curve across temperature-no exponential leakage rise-critical for long-term reliability in unventilated enclosures. |
| Low VF with minimal temperature coefficient | VF increases only ~0.045 V from 25 °C to 125 °C at 10 A, reducing thermal feedback loop risk in high-current SMPS outputs. |
| Dual-diode center-tap architecture | Eliminates need for discrete dual-diode assembly; simplifies PCB layout and improves current balance in solar bypass applications. |
| D2PAK-specific 200 °C DC forward rating | Permits extended overtemperature operation under pure forward bias-validated for 1-hour stress at 200 °C without degradation. |
Applications
| Solar Photovoltaic Bypass Protection | Switch-Mode Power Supply Output Rectification |
|---|---|
Use Scenario: Installed across individual PV cell substrings to prevent hot-spot damage during partial shading or module mismatch. IC Role / Device Role / Timing Role: Dual-diode field-effect rectifier providing bidirectional blocking and unidirectional conduction path around shaded cells. Use Value: Low VF minimizes power loss during bypass conduction; stable IR prevents thermal runaway at elevated ambient temperatures up to 85 °C. |
Use Scenario: Used in synchronous or quasi-synchronous rectification stage of isolated DC-DC converters (e.g., LLC, flyback) operating at 100–500 kHz. IC Role / Device Role / Timing Role: High-frequency rectifying element replacing conventional Schottky diodes to reduce conduction loss and improve light-load efficiency. Use Value: 0.35 V VF at 7.5 A/125 °C lowers conduction loss by ~25% vs. standard 45 V Schottky; D2PAK thermal mass sustains transient current surges. |
| Industrial DC Power Distribution | Energy Storage System (ESS) Module Protection |
Use Scenario: Integrated into redundant 24/48 V DC bus architectures where dual-path redundancy and fault isolation are required. IC Role / Device Role / Timing Role: Center-tap configured as OR-ing diode pair to enable seamless switchover between parallel power sources. Use Value: Matched VF between A1-K and A2-K paths ensures balanced current sharing; low Rth(j-c) supports continuous 30 A operation with minimal heatsinking. |
Use Scenario: Mounted on battery module interconnects to isolate failed cells or submodules during charge/discharge cycles in lithium-ion ESS stacks. IC Role / Device Role / Timing Role: Reverse-biased blocking element preventing reverse current flow during cell imbalance or thermal cutoff events. Use Value: IR ≤50 mA at 125 °C ensures negligible standby leakage across 100+ modules; D2PAK mechanical robustness withstands vibration in mobile ESS deployments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-diode field-effect rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STPS3045CG | Single-diode 30 A, 45 V Schottky; no center-tap; VF = 0.52 V (typ.) at 15 A/125 °C; higher conduction loss. | Requires two devices + external connection to emulate center-tap; larger footprint and higher parasitic inductance. | Select when discrete layout control is preferred or when dual-anode routing is not feasible on PCB. |
| MBR3045CT | TO-220AB dual common-cathode Schottky; VF = 0.62 V (typ.) at 15 A/125 °C; IR = 1.2 mA at 25 °C but rises sharply above 100 °C. | Limited thermal rating (Tj max = 150 °C); unsuitable for sustained >125 °C ambient or D2PAK-level thermal cycling. | Choose for cost-sensitive, lower-temperature industrial supplies where 0.62 V VF is acceptable and TO-220 mounting is preferred. |
Compared with STPS3045CG and MBR3045CT, FERD30M45CG-TR provides integrated center-tap functionality, 35% lower VF than MBR3045CT, and superior high-temperature leakage stability-making it optimal for space-constrained, thermally demanding solar and high-efficiency SMPS designs.
Availability
FERD30M45CG-TR is available at Aetrix Electronics and suitable for solar bypass junction boxes, switch-mode power supply output stages, and industrial DC distribution systems requiring stable component supply, high thermal resilience, and compact dual-diode integration.
Supply support for FERD30M45CG-TR 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
STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, power devices, sensors, and analog ICs for industrial, automotive, and consumer markets.
FERD30M45CG-TR belongs to ST's Field-Effect Rectifier (FERD) product line, engineered specifically to replace conventional Schottky diodes in high-reliability, high-temperature power conversion applications where leakage stability and low VF are critical.
FAQ
Is FERD30M45CG-TR pin-compatible with standard D2PAK dual-diode packages like MBR3045CT?
No. FERD30M45CG-TR uses a three-terminal center-tap configuration (A1, A2, K), whereas MBR3045CT has four terminals (A1, K1, A2, K2). The cathode is internally common in FERD30M45CG-TR, eliminating one pin and enabling direct center-tap connection without external wiring. PCB layout must accommodate this 3-pin footprint.
What is the maximum continuous power dissipation per diode at Tc = 155 °C?
At Tc = 155 °C, each diode supports 15 A average forward current. Using the conduction loss equation P = 0.27 × IF(AV) + 0.012 × IF²(RMS), and assuming δ = 0.5 (IF(RMS) ≈ 21.2 A), power dissipation per diode is approximately 7.5 W. Total device dissipation is ~15 W, consistent with Rth(j-c) = 1.05 °C/W and ΔT = 15.8 °C rise above case.
Can FERD30M45CG-TR be used in automotive under-hood applications?
No. ST explicitly states that FERD30M45C devices are not designed or authorized for automotive applications, including under-hood environments. The datasheet excludes automotive use in its "Please Read Carefully" section (page 10), and no AEC-Q101 qualification or automotive-grade screening is specified for this part.
Does the D2PAK package's 200 °C rating apply to reverse-biased operation?
No. The 200 °C maximum junction temperature applies only to DC forward conduction with no reverse bias applied (per footnote 1 in Table 2). Under reverse bias-even at zero current-the absolute maximum Tj remains 175 °C. Exceeding 175 °C in reverse-biased mode risks irreversible parametric shift or catastrophic failure.
FERD30M45CG-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Diode Configuration:
- 1 Pair Common Cathode
- Technology:
- FERD (Field Effect Rectifier Diode)
- Voltage - DC Reverse (Vr) (Max):
- 45 V
- Current - Average Rectified (Io) (per Diode):
- 15A
- Voltage - Forward (Vf) (Max) @ If:
- 470 mV @ 15 A
- Speed:
- No Recovery Time > 500mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 600 µA @ 45 V
- Operating Temperature - Junction:
- 175°C (Max)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- D2PAK
FERD30M45CG-TR FAQ
1.How can I place an order for FERD30M45CG-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for FERD30M45CG-TR 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 FERD30M45CG-TR reliable?
The price and inventory of FERD30M45CG-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for FERD30M45CG-TR is usually 5 days.
3.What payment methods are accepted for FERD30M45CG-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for FERD30M45CG-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for FERD30M45CG-TR?
FERD30M45CG-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your FERD30M45CG-TR 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 FERD30M45CG-TR?
For technical support, including FERD30M45CG-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your FERD30M45CG-TR requirements.
6.How does Aetrix verify that FERD30M45CG-TR is sourced from the original manufacturer or authorized distributors?
All FERD30M45CG-TR 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 FERD30M45CG-TR meets industry standards.
7.What is the process for return or replacement of FERD30M45CG-TR?
All FERD30M45CG-TR units undergo pre-shipment inspection (PSI). If there is an issue with FERD30M45CG-TR, 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 FERD30M45CG-TR part is unused and in its original packaging.
Return procedure for FERD30M45CG-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
FERD30M45CG-TR Tags
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