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Diodes Incorporated FR603-T
- Part No.:
- FR603-T
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- R-6, Axial
- Datasheet:
-
FR603-T.pdf
- Description:
- DIODE GEN PURP 200V 6A R-6
- Quantity:
- Payment:
- Shipping:
Inventory:3,308
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Product details
Overview
FR603-T from Diodes Incorporated is a 200 V, 6.0 A fast recovery axial-lead rectifier diode in R-6 package, featuring 150 ns reverse recovery time, 1.3 V forward voltage at 6.0 A, and 10 µA reverse leakage at 25°C, used in AC/DC front-end rectification for industrial power supplies and UPS systems.
For engineers reviewing the FR603-T datasheet, FR603-T pinout, FR603-T application, or FR603-T equivalent, key selection criteria include peak repetitive reverse voltage (200 V), average forward current derating behavior above 75°C, surge current capability (300 A @ 8.3 ms), and low junction capacitance (200 pF) for high-frequency switching compatibility.
Technical Context
This device operates as a unidirectional silicon PN junction rectifier with fast recovery characteristics optimized for line-frequency and moderate-frequency (<100 kHz) switching applications. Its 150 ns trr is measured under standardized conditions (IF = 0.5 A, IR = 1.0 A, IRR = 0.25 A), and its 200 pF junction capacitance is specified at 1.0 MHz and 4.0 V reverse bias.
The R-6 package supports axial lead mounting in any orientation and meets UL 94V-0 flammability rating. Thermal performance is defined by a 75°C ambient-rated average forward current of 6.0 A with 9.5 mm lead length, derating to zero at 175°C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - Maximum repetitive peak reverse voltage; defines safe blocking capability in AC line rectification. |
| I(AV) | 6.0 A @ TA = 75°C - Continuous DC output current limit with standard 9.5 mm lead length; requires heatsinking above ambient. |
| trr | 150 ns - Measured reverse recovery time under JEDEC-specified transient conditions; enables use in 20–50 kHz SMPS input stages. |
| VF | 1.3 V @ 6.0 A DC - Forward conduction loss at rated current; determines conduction heating and efficiency in high-current paths. |
| IR | 10 µA @ 25°C - Reverse leakage at rated VDC; critical for low-power standby and high-impedance hold-up circuits. |
| CJ | 200 pF @ 4.0 V, 1.0 MHz - Junction capacitance affecting high-frequency noise coupling and snubber design. |
Pinout & Package
R-6 molded plastic package with axial leads; cathode identified by color band; UL 94V-0 rated; weight ≈1.7 g; mountable in any orientation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unmarked lead) | Positive input terminal during forward conduction | Connected to AC source or transformer secondary; carries full load current during positive half-cycle. |
| Cathode (banded lead) | Output/return terminal during forward conduction | Connected to bulk capacitor or downstream converter; polarity marking prevents reverse installation in series/bridge configurations. |
Key Features
| Feature | Design Value |
|---|---|
| Fast recovery time | 150 ns enables efficient operation in 20–100 kHz rectifier stages without excessive switching loss. |
| Low forward voltage | 1.3 V @ 6.0 A reduces conduction loss and thermal stress in high-current linear and quasi-resonant supplies. |
| High surge rating | 300 A non-repetitive peak surge withstands inrush currents from cold-started capacitive inputs. |
| Wide temperature range | –65°C to +175°C junction operation supports deployment in automotive engine compartments and industrial enclosures. |
Applications
| AC/DC Power Supply Input Stage | Uninterruptible Power Supply (UPS) Rectifier |
|---|---|
Use Scenario: Full-wave bridge rectification of 50/60 Hz mains input feeding bulk electrolytic capacitor banks. IC Role / Device Role / Timing Role: Discrete power diode performing unidirectional current conversion; no timing function. Use Value: 200 V VRRM and 6.0 A I(AV) support universal-input (90–264 VAC) designs with margin for line surges. | Use Scenario: Battery-charging rectifier and bypass path during utility power failure transitions. IC Role / Device Role / Timing Role: High-current discrete rectifier enabling bidirectional energy flow control in hybrid topologies. Use Value: 300 A IFSM handles battery equalization surges; 150 ns trr minimizes commutation loss during transfer switching. |
| Industrial Motor Drive Front-End | LED Streetlight Power Module |
Use Scenario: Three-phase or single-phase rectification feeding DC bus for IGBT inverter stages. IC Role / Device Role / Timing Role: Line-frequency power conversion element; no signal conditioning or control function. Use Value: –65°C to +175°C operating range ensures reliability in enclosed motor control cabinets with ambient up to 70°C. | Use Scenario: Off-line constant-current LED driver input stage with PFC pre-regulator. IC Role / Device Role / Timing Role: Primary rectifier in two-stage topology; interfaces directly with EMI filter and boost inductor. Use Value: 200 pF CJ limits high-frequency common-mode noise injection into upstream EMI filters. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fast recovery rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PR6002-T | Same VRRM (200 V), lower trr (100 ns), higher VF (1.45 V), same I(AV) and package. | Better suited for higher-frequency (>100 kHz) PFC stages where recovery loss dominates. | Select PR6002-T when optimizing for reduced switching loss over conduction loss. |
| ES1J | Lower I(AV) (1 A), smaller DO-41 package, 600 V VRRM, trr = 35 ns. | Only suitable for low-power auxiliary supplies or signal-level clamping-not a drop-in replacement. | Use ES1J only in space-constrained, low-current designs where 200 V blocking is not required. |
Compared with FR603-T, PR6002-T offers faster recovery for high-frequency efficiency gains but trades higher conduction loss, while ES1J provides ultrafast recovery in a miniature package but lacks current and voltage capability for primary rectification roles.
Availability
FR603-T is available at Aetrix Electronics and suitable for industrial power supplies, uninterruptible power systems, and LED streetlight drivers requiring stable component supply and long-term manufacturability.
Supply support for FR603-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 and manufacturing operations across Asia and the Americas.
The FR601–FR607 series targets cost-sensitive, high-volume AC/DC rectification applications where fast recovery, robust surge handling, and wide temperature operation are essential.
FAQ
What is the maximum junction temperature for FR603-T?
The absolute maximum junction temperature is +175°C, with storage temperature matching this range. Derating begins at 75°C ambient for the 6.0 A average forward current rating, and thermal resistance (RθJA) depends on PCB layout and lead length-no published value is provided in the datasheet due to axial-lead dependency on external copper area.
Is FR603-T RoHS compliant and halogen-free?
Yes, FR603-T meets RoHS Directive 2011/65/EU requirements and is certified halogen-free per IEC 61249-2-21. The R-6 package uses UL 94V-0 compliant molding compound, and all plating meets J-STD-609 Category 1 definitions for lead-free terminations.
Can FR603-T be used in a full-wave bridge configuration?
Yes, FR603-T is commonly used in discrete full-wave bridge rectifiers (e.g., four devices in KBPC or GBU-style layouts). Its axial R-6 package allows direct through-hole mounting on perfboard or custom PCBs, and its 300 A surge rating accommodates typical bridge inrush transients.
Why does the datasheet state "NOT RECOMMENDED FOR NEW DESIGNS"?
This notice indicates Diodes Incorporated has introduced the PR6001–PR6005 series as a pin-compatible, enhanced-performance successor with improved trr, tighter VF distribution, and extended lifetime reliability testing-but FR603-T remains fully manufactured, stocked, and supported for legacy and cost-driven applications.
FR603-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- R-6, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 200 V
- Current - Average Rectified (Io):
- 6A
- Voltage - Forward (Vf) (Max) @ If:
- 1.3 V @ 6 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 150 ns
- Current - Reverse Leakage @ Vr:
- 10 µA @ 200 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- R-6
- Operating Temperature - Junction:
- -65°C ~ 175°C
FR603-T FAQ
1.How can I place an order for FR603-T through Aetrix?
Please submit a Request for Quotation (RFQ) for FR603-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 FR603-T reliable?
The price and inventory of FR603-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for FR603-T is usually 5 days.
3.What payment methods are accepted for FR603-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for FR603-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for FR603-T?
FR603-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your FR603-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 FR603-T?
For technical support, including FR603-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your FR603-T requirements.
6.How does Aetrix verify that FR603-T is sourced from the original manufacturer or authorized distributors?
All FR603-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 FR603-T meets industry standards.
7.What is the process for return or replacement of FR603-T?
All FR603-T units undergo pre-shipment inspection (PSI). If there is an issue with FR603-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 FR603-T part is unused and in its original packaging.
Return procedure for FR603-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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