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Diodes Incorporated RS3KB-13-F
- Part No.:
- RS3KB-13-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
RS3KB-13-F.pdf
- Description:
- DIODE GEN PURP 800V 3A SMB
- Quantity:
- Payment:
- Shipping:
Inventory:9,605
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Product details
Overview
RS3KB-13-F from Diodes Incorporated is a 800 V, 3.0 A surface-mount fast recovery rectifier in SMB package with 150 ns reverse recovery time, 1.3 V forward voltage at 3.0 A, and 100 A non-repetitive surge rating - used in AC/DC front-end rectification for industrial power supplies and LED drivers.
For engineers reviewing the RS3KB-13-F datasheet, RS3KB-13-F pinout, RS3KB-13-F application, or RS3KB-13-F equivalent, key selection criteria include peak repetitive reverse voltage (800 V), thermal resistance (25 K/W), junction-to-terminal cooling path, and fast recovery performance under 60 Hz half-wave resistive load conditions.
Technical Context
This device employs glass-passivated silicon die construction to achieve stable fast recovery characteristics across temperature. Its 150 ns trr (measured at IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A) supports high-frequency switching efficiency in offline SMPS input stages.
The SMB package provides a defined thermal path (RJT = 25 K/W with 5.0 mm² copper pad) and meets UL 94V-0 flammability requirements. Polarity is marked by cathode band; terminals are solder-plated per MIL-STD-202, Method 208.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 800 V - blocks up to 800 V peak reverse voltage in bridge or single-phase rectifier configurations |
| IO | 3.0 A average - rated for continuous conduction at TT = 75°C with appropriate PCB copper heatsinking |
| VFM | 1.3 V @ 3.0 A - low conduction loss enabling >85% efficiency in 24–48 V output power supplies |
| trr | 150 ns - enables operation up to ~100 kHz without excessive switching loss in PFC or flyback inputs |
| RJT | 25 K/W - defines junction-to-terminal thermal gradient when mounted on 5.0 mm² × 0.013 mm Cu pad |
| IFSM | 100 A - withstands 8.3 ms half-sine surge per JEDEC method, supporting cold-start inrush immunity |
| Tj Range | −65°C to +150°C - supports operation in extended-temperature industrial and outdoor lighting environments |
Pinout & Package
SMB (DO-214AA) surface-mount package: anode and cathode terminals exposed on opposite ends of molded plastic body; cathode identified by band marking; no internal leads - direct solder attachment to PCB pads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | AC input connection point | Accepts alternating input; conducts current during positive half-cycle when cathode is at higher potential |
| Cathode | DC output connection point | Delivers rectified unidirectional current; marked by visible band; connects to bulk capacitor or downstream converter |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated die | Ensures stable reverse leakage (<5 µA @ 25°C, <250 µA @ 125°C) and long-term reliability under humidity stress |
| Fast recovery (150 ns) | Reduces reverse recovery charge (Qrr) to minimize EMI and diode switching loss in high-frequency rectifiers |
| UL 94V-0 plastic case | Meets flame-retardant safety requirements for enclosed industrial and medical power equipment |
| 100 A surge rating | Supports repeated cold-start events without degradation in AC mains-fed LED drivers and motor controls |
Applications
| Industrial AC/DC Power Supply | LED Driver Input Stage |
|---|---|
Use Scenario: Single-phase rectification feeding 30–60 W isolated flyback converter in DIN-rail power supply. IC Role / Device Role / Timing Role: Primary-side uncontrolled rectifier converting 85–265 V AC to pulsating DC before bulk capacitor smoothing. Use Value: 800 V VRRM provides 2× safety margin over 265 V AC peak (375 V); 150 ns trr limits switching noise coupling into feedback circuitry. | Use Scenario: Input rectification for constant-current LED driver powering streetlight modules. IC Role / Device Role / Timing Role: Front-end diode in bridge configuration delivering DC bus to buck controller and LED string. Use Value: 3.0 A IO sustains 2.5 A continuous LED load with 20% derating for capacitive input; 100 A IFSM absorbs lightning-induced surges on outdoor lines. |
| Motor Control Rectifier | UPS Input Stage |
Use Scenario: Half-wave rectifier supplying gate drive bias for IGBTs in 3-phase inverter auxiliary supply. IC Role / Device Role / Timing Role: Isolated low-power DC source generation from phase-to-phase AC sensing winding. Use Value: −65°C to +150°C operating range ensures startup at sub-zero ambient; 25 K/W RJT allows direct mounting on control board without heatsink. | Use Scenario: Input rectifier in line-interactive UPS charging circuit handling brownout and surge transients. IC Role / Device Role / Timing Role: Unidirectional conduction path from utility input to battery charger stage. Use Value: 800 V blocking capability accommodates 10% overvoltage tolerance on 230 V nominal grid; cathode band marking enables automated optical inspection during SMT placement. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fast recovery rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH3L06S | 600 V VRRM, 120 ns trr, TO-277 package | Limited to ≤265 V AC input systems; lower thermal resistance (18 K/W) but smaller footprint | Select when system peak voltage ≤420 V and board space is constrained |
| ES3J-E3/57T | 600 V VRRM, 35 ns trr, SMB package | Faster recovery enables >500 kHz operation but lower surge rating (60 A) | Prefer for high-frequency PFC where Qrr minimization outweighs surge robustness |
Compared with STTH3L06S and ES3J-E3/57T, RS3KB-13-F offers superior 800 V blocking and 100 A surge margin for universal-input industrial power, trading off some speed for ruggedness in harsh-line environments.
Availability
RS3KB-13-F is available at Aetrix Electronics and suitable for industrial AC/DC power supplies, LED driver input stages, and UPS input rectification requiring stable component supply and long-lifecycle availability.
Supply support for RS3KB-13-F 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 centers across Asia and manufacturing in China, Taiwan, and the U.S.
RS3KB-13-F belongs to the RS3x fast recovery rectifier product line, engineered for high-efficiency, high-reliability AC input rectification in industrial, lighting, and computing power systems.
FAQ
What is the maximum allowable PCB copper pad area for optimal thermal performance?
The datasheet specifies thermal resistance RJT = 25 K/W measured with a 5.0 mm² (0.013 mm thick) copper pad acting as heatsink. Increasing pad area beyond this yields diminishing returns; additional thermal vias to inner ground planes improve dissipation more effectively than lateral expansion alone.
Can RS3KB-13-F be used in full-wave bridge configurations?
Yes - RS3KB-13-F is a single-die, two-terminal device designed for use in discrete full-wave bridge assemblies. Four units can form a standard bridge rectifier; its 800 V VRRM supports 400 V RMS input, and cathode band marking ensures correct orientation during manual or automated assembly.
How does derating apply for capacitive input loads?
For capacitive input loads, the average forward current rating must be reduced by 20% - i.e., from 3.0 A to 2.4 A - due to increased peak current stress and harmonic content. This derating is specified in the datasheet and applies regardless of ambient temperature or heatsinking.
Is RS3KB-13-F compliant with RoHS and REACH regulations?
Yes - RS3KB-13-F is RoHS-compliant (lead-free termination, homogeneous material compliance) and REACH-conformant per Diodes Incorporated's published declarations. The "-F" suffix explicitly denotes lead-free, halogen-free, and green packaging per IPC/JEDEC standards.
RS3KB-13-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- DO-214AA, SMB
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 800 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:
- 5 µA @ 800 V
- Capacitance @ Vr, F:
- 50pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMB
- Operating Temperature - Junction:
- -65°C ~ 150°C
RS3KB-13-F FAQ
1.How can I place an order for RS3KB-13-F through Aetrix?
Please submit a Request for Quotation (RFQ) for RS3KB-13-F 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 RS3KB-13-F reliable?
The price and inventory of RS3KB-13-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RS3KB-13-F is usually 5 days.
3.What payment methods are accepted for RS3KB-13-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RS3KB-13-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RS3KB-13-F?
RS3KB-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RS3KB-13-F 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 RS3KB-13-F?
For technical support, including RS3KB-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RS3KB-13-F requirements.
6.How does Aetrix verify that RS3KB-13-F is sourced from the original manufacturer or authorized distributors?
All RS3KB-13-F 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 RS3KB-13-F meets industry standards.
7.What is the process for return or replacement of RS3KB-13-F?
All RS3KB-13-F units undergo pre-shipment inspection (PSI). If there is an issue with RS3KB-13-F, 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 RS3KB-13-F part is unused and in its original packaging.
Return procedure for RS3KB-13-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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