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Diodes Incorporated FR307-T
- Part No.:
- FR307-T
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- DO-201AD, Axial
- Datasheet:
-
FR307-T.pdf
- Description:
- DIODE GEN PURP 1KV 3A DO201AD
- Quantity:
- Payment:
- Shipping:
Inventory:3,163
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Product details
Overview
FR307-T from Diodes Incorporated is a 3.0A, 1000V fast recovery rectifier diode in DO-201AD axial package, featuring 150 ns reverse recovery time (Trr), 1.3 V forward voltage at 3.0 A, and 10 µA maximum reverse leakage at rated voltage - deployed in AC/DC front-end rectification for industrial power supplies and UPS systems.
For engineers reviewing the FR307-T datasheet, FR307-T pinout, FR307-T application, or FR307-T equivalent, key selection criteria include peak repetitive reverse voltage (1000 V), average forward current derating above 75°C, Trr-dependent switching loss in high-frequency SMPS, and axial lead mechanical compatibility with through-hole PCB assembly.
Technical Context
This device operates as a unidirectional silicon junction rectifier optimized for high-voltage, medium-current switching applications. Its fast recovery characteristic (Trr = 150 ns) enables reduced switching losses compared to standard rectifiers, while the 1000 V VRRM rating supports use in 400 VAC input-derived DC bus designs.
The DO-201AD package provides axial leads compatible with wave soldering and manual insertion, with UL 94V-0 flammability rating and operating junction temperature range of –65°C to +175°C - supporting reliability in thermally demanding environments without forced cooling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 1000 V - Withstands peak reverse voltage in 400 VAC line-synchronized rectification without breakdown. |
| I(AV) | 3.0 A @ TA = 75°C - Sustains continuous forward current with 9.5 mm lead length; derates linearly to zero at 175°C junction. |
| Trr | 150 ns - Limits reverse recovery charge (Qrr) to minimize turn-off losses in 20–100 kHz SMPS topologies. |
| VF | 1.3 V @ IF = 3.0 A - Determines conduction loss (3.9 W max at full load) and thermal rise in ambient-constrained layouts. |
| IR | 10 µA @ VR = 1000 V - Ensures minimal leakage-induced standby power loss in high-impedance hold-up circuits. |
| CJ | 50 pF @ VR = 4 V, 1 MHz - Affects high-frequency noise coupling and snubber design in flyback transformer primary clamping. |
Pinout & Package
DO-201AD molded plastic package with axial leads; cathode identified by color band; UL 94V-0 rated; weight ≈1.1 g; mountable in any orientation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unbanded end) | Forward current entry node | Connected to AC source or transformer secondary; must withstand surge current up to 150 A (8.3 ms half-sine). |
| Cathode (banded end) | Forward current exit node | Connects to bulk capacitor or DC bus; polarity marking critical for correct series/parallel stacking. |
Key Features
| Feature | Design Value |
|---|---|
| Fast recovery time | 150 ns Trr enables efficient operation in 50–100 kHz switch-mode power supplies without excessive heat generation. |
| High voltage blocking | 1000 V VRRM supports universal-input (85–265 VAC) offline converters with safety margin for line transients. |
| Low forward voltage | 1.3 V VF at 3.0 A reduces conduction loss by ~15% versus comparable 1N5408-class rectifiers. |
| Robust surge capability | 150 A IFSM withstands cold-start inrush into large electrolytic banks without parametric shift or failure. |
Applications
| Industrial AC/DC Power Supplies | Uninterruptible Power Systems (UPS) |
|---|---|
Use Scenario: Rectifying 230 VAC mains input in 500–1000 W industrial power supplies with active PFC front-end. IC Role / Device Role / Timing Role: Primary-side fast recovery rectifier in bridge configuration; handles 50/60 Hz line frequency and high dv/dt during PFC switching transitions. Use Value: 150 ns Trr minimizes reverse recovery energy dissipation during PFC MOSFET turn-on, improving overall efficiency by 0.4–0.6%. | Use Scenario: Battery-charger input stage and inverter output rectification in online double-conversion UPS units. IC Role / Device Role / Timing Role: Bidirectional rectification path in charger/inverter H-bridge; blocks 1000 V DC bus reversal during battery discharge mode. Use Value: 1000 V VRRM ensures safe operation during DC bus overvoltage events (e.g., regenerative braking feedback). |
| Solar Microinverters | Motor Drive Input Stages |
Use Scenario: DC-link input rectification in single-phase microinverters converting PV panel output to grid-synchronized AC. IC Role / Device Role / Timing Role: High-voltage AC input rectifier feeding boost converter; exposed to rapid voltage reversals during anti-islanding detection cycles. Use Value: Low 10 µA IR prevents parasitic discharge of DC-link capacitors during night-time sleep mode, extending standby battery life. | Use Scenario: Input rectification in 3 kW HVAC inverter drives accepting 400 VAC three-phase supply. IC Role / Device Role / Timing Role: Six-pack bridge rectifier module component; conducts 3.0 A RMS per phase under continuous duty with thermal cycling. Use Value: –65°C to +175°C TJ range allows operation in sealed motor control enclosures without external heatsinking. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fast recovery rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PR3007G | Same VRRM (1000 V), I(AV) (3.0 A), and DO-201AD package; Trr = 120 ns (faster), VF = 1.25 V (lower). | Optimized for higher-frequency (>150 kHz) topologies where Qrr reduction improves efficiency more than VF trade-off. | Select PR3007G when upgrading legacy designs requiring tighter Trr control and lower conduction loss at cost premium. |
| STTH3010D | VRRM = 1000 V, I(AV) = 3.0 A, but TO-220AC package; Trr = 130 ns, VF = 1.2 V; requires heatsink mounting. | Used in higher-power modules where thermal management justifies surface-mount or screw-terminal packaging. | Choose STTH3010D only if board layout permits TO-220 footprint and thermal interface design supports 175°C junction operation. |
Compared with PR3007G and STTH3010D, FR307-T offers lowest cost and simplest through-hole assembly, making it optimal for cost-sensitive, thermally moderate 50–100 kHz industrial power supplies where 150 ns Trr meets design margins.
Availability
FR307-T is available at Aetrix Electronics and suitable for industrial AC/DC power supplies, uninterruptible power systems (UPS), and solar microinverter input stages requiring stable component supply and long-term manufacturing continuity.
Supply support for FR307-T 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, manufacturing, and sales operations across Asia, Europe, and North America.
The FR30x series belongs to Diodes' general-purpose fast recovery rectifier product line, engineered for high-voltage, medium-current AC/DC conversion in cost-sensitive industrial and consumer power applications.
FAQ
What is the maximum allowable junction temperature for FR307-T?
The absolute maximum junction temperature (TJ) is +175°C, with storage temperature matching this range. Derating begins at 75°C ambient for the rated 3.0 A average forward current, and thermal resistance (RθJA) depends on PCB copper area and lead length - typical RθJA is 50°C/W with 9.5 mm leads and 1-inch² copper pad.
Is FR307-T suitable for use in a full-wave bridge configuration?
Yes - FR307-T is commonly used in discrete full-wave bridge rectifiers due to its matched VRRM, IFSM, and Trr across the FR301–FR307 family. Four FR307-T devices can form a 1000 V, 3.0 A bridge; ensure symmetrical PCB layout and thermal coupling to avoid current imbalance.
Does FR307-T have UL recognition, and what does that cover?
Yes - the DO-201AD package carries UL 94V-0 flammability recognition, confirming the molded plastic body meets Underwriters Laboratories' stringent vertical burning test requirements for flame retardancy, critical for safety-compliant industrial and medical power equipment.
Why is FR307-T marked as "Not Recommended for New Designs" in the datasheet?
Diodes Incorporated issued this notice because the PR3007G - a functionally identical, drop-in replacement with improved Trr (120 ns) and VF (1.25 V) - has superseded FR307-T in manufacturing. FR307-T remains fully supported for legacy production and repair, with no obsolescence timeline published.
FR307-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- DO-201AD, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 1000 V
- Current - Average Rectified (Io):
- 3A
- Voltage - Forward (Vf) (Max) @ If:
- 1.3 V @ 3 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 500 ns
- Current - Reverse Leakage @ Vr:
- 10 µA @ 1000 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-201AD
- Operating Temperature - Junction:
- -65°C ~ 175°C
FR307-T FAQ
1.How can I place an order for FR307-T through Aetrix?
Please submit a Request for Quotation (RFQ) for FR307-T 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 FR307-T reliable?
The price and inventory of FR307-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for FR307-T is usually 5 days.
3.What payment methods are accepted for FR307-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for FR307-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for FR307-T?
FR307-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your FR307-T 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 FR307-T?
For technical support, including FR307-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your FR307-T requirements.
6.How does Aetrix verify that FR307-T is sourced from the original manufacturer or authorized distributors?
All FR307-T 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 FR307-T meets industry standards.
7.What is the process for return or replacement of FR307-T?
All FR307-T units undergo pre-shipment inspection (PSI). If there is an issue with FR307-T, 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 FR307-T part is unused and in its original packaging.
Return procedure for FR307-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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