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Diodes Incorporated RS2K-13
- Part No.:
- RS2K-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
RS2K-13.pdf
- Description:
- DIODE GEN PURP 800V 1.5A SMB
- Quantity:
- Payment:
- Shipping:
Inventory:9,240
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Product details
Overview
RS2K-13 from Diodes Incorporated is a 1.5A surface-mount fast recovery rectifier with 800V peak repetitive reverse voltage (VRRM), 1.3V forward voltage at 1.5A, and 250ns reverse recovery time (trr), designed for high-efficiency AC/DC front-end rectification in offline switch-mode power supplies.
For engineers reviewing the RS2K-13 datasheet, RS2K-13 pinout, RS2K-13 application, or RS2K-13 equivalent, key selection criteria include VRRM derating for surge margin, trr impact on EMI in high-frequency converters, thermal resistance (20 K/W) for PCB copper pad layout, and SMB package compatibility with automated reflow assembly.
Technical Context
This device is a glass-passivated silicon junction diode optimized for fast switching in 50/60Hz and kHz-range SMPS rectification stages. Its 250ns trr and low Qrr minimize switching losses during commutation, while the 50A non-repetitive surge rating supports cold-start inrush handling.
The SMB package provides higher thermal dissipation than SMA (RJT = 20 K/W with 5.0 mm² copper pad), and its cathode band marking enables unambiguous polarity identification during automated optical inspection and placement.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 800 V - Withstands peak line transients up to 800V in universal-input (85–265VAC) offline supplies without breakdown. |
| IO @ TT=120°C | 1.5 A - Continuous DC output current capability when terminal temperature is held at 120°C via PCB heatsinking. |
| VFM @ IF=1.5A | 1.3 V - Forward conduction loss of 1.95W at rated current, directly impacting efficiency and thermal design. |
| trr | 250 ns - Enables use in 100–500kHz flyback and forward converters without excessive switching loss or EMI. |
| IFSM (8.3ms) | 50 A - Supports single-cycle inrush current surges during input capacitor charging without failure. |
| RJT | 20 K/W - Requires ≥5.0 mm² of 0.013 mm thick copper pad per terminal to maintain junction temperature within -65°C to +150°C range. |
Pinout & Package
SMB (DO-214AA) surface-mount package: molded plastic case with solderable matte tin-plated terminals; cathode identified by band marking; weight 0.09 g; UL 94V-0 rated.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input for AC or positive half-cycle | Connected to transformer secondary or bridge input; must withstand full VRRM and IFSM stress. |
| Cathode | Output for rectified DC | Marked with band; ties to bulk capacitor or downstream converter input; carries full IO and ripple current. |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated die | Eliminates need for hermetic sealing while maintaining reliability under humidity and bias stress. |
| Fast recovery (250ns) | Reduces reverse recovery charge (Qrr) to limit turn-off spikes and snubber losses in high-frequency operation. |
| UL 94V-0 plastic case | Meets flammability requirements for end-equipment safety certification (e.g., IEC 62368-1). |
| 50A surge rating | Enables robustness against line surges and capacitor inrush without external fusing in many designs. |
Applications
| AC/DC Adapter Front-End | Industrial SMPS Input Stage |
|---|---|
Use Scenario: Rectifying 50/60Hz or high-frequency AC from transformer secondary in compact wall adapters. IC Role / Device Role / Timing Role: Power conversion diode in single-phase bridge or voltage-doubler configuration. Use Value: 1.3V VFM and 250ns trr reduce conduction and switching losses, enabling >85% efficiency in 10–30W designs. | Use Scenario: Input rectification in 100–500W industrial power supplies with wide input range and high reliability demands. IC Role / Device Role / Timing Role: Primary-side fast recovery diode in full-wave bridge or PFC boost output stage. Use Value: 800V VRRM provides 2× margin over 400VDC PFC bus, and 50A IFSM handles repeated cold starts. |
| LED Driver Bulk Rectification | UPS Inverter Output Protection |
Use Scenario: Converting AC mains to DC bus for constant-current LED driver ICs in streetlight and high-bay fixtures. IC Role / Device Role / Timing Role: High-voltage, medium-current rectifier feeding electrolytic bulk capacitor. Use Value: 20 K/W thermal resistance allows stable operation at 120°C terminal temp with minimal copper area, saving PCB space. | Use Scenario: Reverse-polarity protection and freewheeling path in bi-directional UPS inverter H-bridge outputs. IC Role / Device Role / Timing Role: Fast-recovery freewheeling diode clamping inductive kickback during MOSFET switching transitions. Use Value: 250ns trr limits voltage overshoot across switches, reducing need for snubbers and improving system MTBF. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fast recovery rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1L80S | 800V VRRM, 1.1A IO, 75ns trr, TO-277 package | Lower current rating; faster recovery but requires different footprint and thermal design | Select if trr < 100ns is mandatory and IO ≤ 1.1A suffices. |
| ON Semi MUR180 | 800V VRRM, 1.0A IO, 75ns trr, DO-41 through-hole | Through-hole mounting; lower current and no surface-mount compatibility | Choose only for legacy through-hole production or prototyping where reflow is unavailable. |
Compared with RS2K-13, STTH1L80S offers superior speed but sacrifices 33% current capacity and changes package geometry, while MUR180 trades mountability and thermal performance for legacy compatibility-neither is drop-in, requiring layout and thermal redesign.
Availability
RS2K-13 is available at Aetrix Electronics and suitable for AC/DC adapters, industrial SMPS, LED drivers, and UPS inverters requiring stable component supply, consistent parametric performance, and long-term manufacturing continuity.
Supply support for RS2K-13 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 RS2x series belongs to Diodes' high-reliability fast recovery rectifier product line, engineered specifically for efficient, thermally robust AC/DC conversion in cost-sensitive, high-volume power supply applications.
FAQ
What is the maximum allowable junction temperature for RS2K-13?
The absolute maximum junction temperature is +150°C, and the device is rated for continuous operation from –65°C to +150°C. Derating begins at terminal temperatures above 120°C, where average rectified current drops linearly to zero at 175°C per Figure 1 in the datasheet. Thermal design must ensure RJT × (Pdiss – Tamb) stays below this limit.
Can RS2K-13 replace RS2J-13 in an existing design?
Yes, RS2K-13 (800V VRRM) can safely replace RS2J-13 (600V VRRM) without circuit modification, provided board layout accommodates identical SMB packaging and thermal constraints. The higher VRRM improves surge margin, but forward voltage and trr are nearly identical, preserving efficiency and EMI behavior.
Is RS2K-13 suitable for high-frequency PFC circuits?
No - while its 250ns trr supports 100–300kHz operation, RS2K-13 is not optimized for continuous high-frequency PFC (≥500kHz). Dedicated ultrafast or SiC diodes with trr < 50ns and lower Qrr are recommended for critical PFC stages to minimize losses and noise.
Does RS2K-13 have a SPICE model available?
Yes, Diodes Incorporated provides a verified SPICE model for RS2K-13 (listed explicitly in DS15004 Rev. E-2, page 1), supporting transient simulation of forward conduction, reverse recovery, and thermal effects. It is downloadable from the manufacturer's website under the "Design Resources" section for the RS2x family.
RS2K-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- DO-214AA, SMB
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 800 V
- Current - Average Rectified (Io):
- 1.5A
- Voltage - Forward (Vf) (Max) @ If:
- 1.3 V @ 1.5 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 500 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 800 V
- Capacitance @ Vr, F:
- 30pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMB
- Operating Temperature - Junction:
- -65°C ~ 150°C
RS2K-13 FAQ
1.How can I place an order for RS2K-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for RS2K-13 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 RS2K-13 reliable?
The price and inventory of RS2K-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RS2K-13 is usually 5 days.
3.What payment methods are accepted for RS2K-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RS2K-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RS2K-13?
RS2K-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RS2K-13 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 RS2K-13?
For technical support, including RS2K-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RS2K-13 requirements.
6.How does Aetrix verify that RS2K-13 is sourced from the original manufacturer or authorized distributors?
All RS2K-13 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 RS2K-13 meets industry standards.
7.What is the process for return or replacement of RS2K-13?
All RS2K-13 units undergo pre-shipment inspection (PSI). If there is an issue with RS2K-13, 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 RS2K-13 part is unused and in its original packaging.
Return procedure for RS2K-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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