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Diodes Incorporated FR606-T
- Part No.:
- FR606-T
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- R-6, Axial
- Datasheet:
-
FR606-T.pdf
- Description:
- DIODE GEN PURP 800V 6A R-6
- Quantity:
- Payment:
- Shipping:
Inventory:6,080
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Product details
Overview
FR606-T from Diodes Incorporated is a 800 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 300 A surge capability - used in AC/DC input stages of industrial power supplies and motor drive front-ends.
For engineers reviewing the FR606-T datasheet, FR606-T pinout, FR606-T application, or FR606-T equivalent, key selection criteria include peak repetitive reverse voltage (800 V), average forward current derating above 75°C, low reverse recovery charge for reduced switching loss, and axial-lead mechanical compatibility with through-hole PCB layouts.
Technical Context
This device operates as a unidirectional silicon junction rectifier optimized for high-efficiency line-frequency and moderate-frequency (≤20 kHz) switching applications. Its fast recovery behavior (Trr = 150 ns) results from controlled carrier lifetime reduction via platinum diffusion, enabling lower switching losses than standard rectifiers.
The R-6 package supports 6.0 A average forward current at 75°C ambient with 9.5 mm lead length, and its UL 94V-0 molded plastic body ensures flame-retardant compliance in safety-critical power systems. Reverse leakage remains ≤10 µA at 25°C and ≤150 µA at 55°C case temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 800 V - maximum repetitive peak reverse voltage; defines safe blocking capability in 600 VAC bridge rectifier inputs. |
| I(AV) | 6.0 A @ TA = 75°C - continuous DC output current rating; requires heatsinking or airflow above 75°C ambient. |
| Trr | 150 ns - measured at IF = 0.5 A, IR = 1.0 A, IRR = 0.25 A; enables reduced turn-off loss in 10–20 kHz SMPS PFC stages. |
| VF | 1.3 V @ 6.0 A DC - forward conduction loss directly impacts thermal design and efficiency at full load. |
| IFSM | 300 A @ 8.3 ms half-sine - withstands inrush surges during cold-start of 3 kW+ power supplies without failure. |
| IR | 10 µA @ 25°C, 150 µA @ 55°C TL - low leakage preserves hold-up capacitor charge and minimizes standby loss. |
Pinout & Package
R-6 molded plastic package with axial leads; cathode identified by color band; lead diameter 0.8–0.9 mm; overall dimensions: 25.4 mm (L) × 9.1 mm (D max); weight ≈1.7 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unbanded end) | Input terminal for positive half-cycle conduction | Connects to AC source or transformer secondary; carries full load current during forward bias. |
| Cathode (banded end) | Output terminal for rectified DC | Delivers pulsating DC to bulk capacitor; polarity marking critical for correct PCB orientation. |
Key Features
| Feature | Design Value |
|---|---|
| Fast recovery time | 150 ns - reduces reverse recovery charge (Qrr), lowering EMI and switching losses in 10–20 kHz converters. |
| Low forward voltage | 1.3 V @ 6.0 A - cuts conduction loss by ~15% vs. comparable 1.5 V VF rectifiers, improving thermal margin. |
| High surge rating | 300 A non-repetitive - survives repeated cold-start surges in industrial UPS and servo amplifier power stages. |
| UL 94V-0 flammability | Self-extinguishing plastic housing - meets safety requirements for enclosed power equipment per IEC/EN 62368-1. |
Applications
| Industrial AC/DC Power Supplies | Motor Drive Input Rectification |
|---|---|
Use Scenario: Front-end bridge rectifier in 1–3 kW industrial switch-mode power supplies with universal AC input. IC Role / Device Role / Timing Role: Unidirectional current steering device converting AC line to pulsating DC; no timing function. Use Value: 800 V VRRM safely handles 400 VAC transients; 150 ns Trr limits switching loss during 15 kHz PFC operation. | Use Scenario: Input stage rectification in 3-phase inverter drives for HVAC compressors and pumps. IC Role / Device Role / Timing Role: High-current discrete rectifier providing DC bus voltage; operates at line frequency with minimal conduction loss. Use Value: 6.0 A I(AV) rating supports continuous 2.5 kW output; axial leads enable robust mechanical mounting on bus bars. |
| Uninterruptible Power Systems (UPS) | Welding Equipment Power Stages |
Use Scenario: Battery-charger rectifier and inverter output stage in online double-conversion UPS units. IC Role / Device Role / Timing Role: Bidirectional conduction path during battery charging and AC regeneration; functions as passive rectifier only. Use Value: 300 A IFSM withstands repeated 200 A inrush surges during battery reconnection; low IR preserves float charge integrity. | Use Scenario: Primary-side rectification in medium-duty arc welding inverters with 50–100 Hz duty cycling. IC Role / Device Role / Timing Role: Line-frequency rectifier delivering high-pulse DC to inverter DC link capacitors. Use Value: 1.3 V VF minimizes heat generation during 100% duty cycle welds; R-6 package allows direct heatsink clamping. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fast recovery rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PR6004-T | Same R-6 package, 800 V VRRM, but 100 ns Trr and 1.25 V VF; newer platinum-diffused process. | Lower Qrr enables higher-frequency PFC (up to 30 kHz); preferred for next-gen compact PSUs. | Select PR6004-T when upgrading legacy designs for improved efficiency or EMI performance. |
| STTH8R06D | TO-220AC package, 600 V VRRM, 8 A I(AV), 75 ns Trr; higher current, lower voltage rating. | Requires heatsink mounting; suited for higher-power, lower-voltage DC bus applications (e.g., 400 V systems). | Choose STTH8R06D only if board layout accommodates TO-220 footprint and system VRRM ≤600 V. |
Compared with FR606-T, PR6004-T offers faster recovery and lower VF for efficiency-critical upgrades, while STTH8R06D trades voltage headroom for higher current and thermal dissipation - neither is pin-compatible due to differing packages and voltage classes.
Availability
FR606-T is available at Aetrix Electronics and suitable for industrial AC/DC power supplies, motor drive input rectification, uninterruptible power systems (UPS), and welding equipment power stages requiring stable component supply and long-term obsolescence management.
Supply support for FR606-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 US.
The FR601–FR607 series targets cost-sensitive, high-volume power conversion applications where reliability, thermal robustness, and standardized axial-lead form factor are essential.
FAQ
What is the maximum operating temperature for FR606-T?
The FR606-T has a junction temperature range of –65°C to +175°C and a storage temperature limit of the same. Its 6.0 A average forward current rating is specified at 75°C ambient with 9.5 mm lead length; derating curves show usable current drops to ~3.5 A at 100°C ambient.
Is FR606-T RoHS compliant and halogen-free?
Yes - FR606-T meets RoHS Directive 2011/65/EU and is halogen-free per IEC 61249-2-21. The R-6 package uses brominated flame retardants replaced with phosphorus-based alternatives to achieve UL 94V-0 without halogens.
Can FR606-T replace FR605 or FR607 in existing designs?
FR606-T (800 V) may substitute FR605 (600 V) if system transient overvoltage stays below 800 V; it cannot replace FR607 (1000 V) where 1000 V blocking is required. Thermal and surge margins remain identical across the FR601–FR607 family due to shared die and package construction.
Why is FR606-T marked "NOT RECOMMENDED FOR NEW DESIGNS"?
Diodes Incorporated issued this notice because the newer PR6001–PR6005 series offers improved Trr (down to 100 ns), lower VF, and tighter parameter distributions using enhanced process control - while maintaining R-6 packaging and drop-in mechanical compatibility for most legacy layouts.
FR606-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):
- 800 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):
- 500 ns
- Current - Reverse Leakage @ Vr:
- 10 µA @ 800 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- R-6
- Operating Temperature - Junction:
- -65°C ~ 175°C
FR606-T FAQ
1.How can I place an order for FR606-T through Aetrix?
Please submit a Request for Quotation (RFQ) for FR606-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 FR606-T reliable?
The price and inventory of FR606-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for FR606-T is usually 5 days.
3.What payment methods are accepted for FR606-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for FR606-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for FR606-T?
FR606-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your FR606-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 FR606-T?
For technical support, including FR606-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your FR606-T requirements.
6.How does Aetrix verify that FR606-T is sourced from the original manufacturer or authorized distributors?
All FR606-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 FR606-T meets industry standards.
7.What is the process for return or replacement of FR606-T?
All FR606-T units undergo pre-shipment inspection (PSI). If there is an issue with FR606-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 FR606-T part is unused and in its original packaging.
Return procedure for FR606-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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