Diodes Incorporated RS2KA-13-F
- Part No.:
- RS2KA-13-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
RS2KA-13-F.pdf
- Description:
- DIODE GEN PURP 800V 1.5A SMA
- Quantity:
- Payment:

- Shipping:

Inventory:3,821
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Product details
Overview
RS2KA-13-F from Diodes Incorporated is a 1.5A surface-mount fast recovery rectifier with 800V peak repetitive reverse voltage (VRRM), 1.3V forward voltage (VFM) at 1.5A, and 250ns reverse recovery time (trr), designed for high-efficiency AC/DC front-end rectification in offline power supplies and LED drivers.
For engineers reviewing the RS2KA-13-F datasheet, RS2KA-13-F pinout, RS2KA-13-F application, or RS2KA-13-F equivalent, key selection criteria include its 800V blocking capability, 50A non-repetitive surge rating, SMA package thermal resistance (20°C/W), and suitability for automated SMT assembly in industrial and consumer power converters.
Technical Context
This device operates as a unidirectional silicon PN junction rectifier optimized for fast switching in line-frequency and quasi-resonant topologies. Its glass-passivated die construction ensures stable performance under thermal cycling and humidity stress, while the cathode-band polarity marking enables reliable orientation during automated placement.
The 250ns reverse recovery time supports reduced switching losses in flyback and boost PFC stages, and its 30pF typical junction capacitance minimizes high-frequency noise coupling in EMI-sensitive designs. Rated for -65°C to +150°C operation, it meets industrial temperature requirements without derating up to 120°C terminal temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 800 V - Withstands peak AC line transients up to 800V in universal-input SMPS designs |
| IO | 1.5 A - Continuous average output current at 120°C terminal temperature |
| VFM | 1.3 V @ 1.5A - Low conduction loss enabling >90% efficiency in 12–24W adapters |
| trr | 250 ns - Fast recovery reduces turn-off switching loss and EMI generation |
| IFSM | 50 A - Handles 8.3ms half-sine surges common in cold-start and lightning-induced grid events |
| RθJT | 20 °C/W - Enables thermal management on standard 5mm² copper pads without heatsink |
| CT | 30 pF @ 1MHz/4V - Limits capacitive coupling noise in high-dv/dt gate-drive or feedback paths |
Pinout & Package
Package: SMA (DO-214AC), molded plastic body with UL 94V-0 flammability rating, matte tin-plated terminals, cathode band polarity marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input current entry point | Connected to AC input or transformer secondary; must withstand full reverse voltage when off |
| Cathode | Output current exit point | Feeds bulk capacitor or downstream converter; carries full DC output current and ripple |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated die | Eliminates moisture-induced leakage degradation and improves long-term reliability in humid environments |
| Fast recovery (250ns) | Reduces reverse recovery charge (Qrr) to <1.2μC, lowering diode switching loss by ~35% vs. standard rectifiers |
| 50A surge rating | Supports IEC 61000-4-5 Level 3 surge immunity without external clamping in Class II adapters |
| Lead-free & Halogen-free | Complies with RoHS 3 (2015/863/EU) and automotive "Green" standards (<900ppm Br+Cl, <1000ppm Sb) |
Applications
| AC/DC Adapter Input Stage | LED Driver Bulk Rectification |
|---|---|
Use Scenario: Universal-input (90–264VAC) 12W adapter with flyback topology and no active PFC. IC Role / Device Role / Timing Role: Primary-side uncontrolled rectifier converting AC line to pulsating DC before bulk capacitor. Use Value: 800V VRRM provides 2× safety margin over 264VAC peak (373V), and 250ns trr limits switching loss during zero-crossing transitions. | Use Scenario: Constant-current LED driver for street lighting operating from 220VAC mains. IC Role / Device Role / Timing Role: Bridge rectifier input stage feeding buck converter with 400V-rated electrolytic capacitor. Use Value: 1.3V VFM reduces conduction loss by 18% vs. 1N4007, improving thermal margin at 1.5A continuous load. |
| Industrial Power Supply Input | UPS Line-Conditioning Circuit |
Use Scenario: 24V/2A industrial SMPS with wide ambient range (-40°C to +85°C). IC Role / Device Role / Timing Role: Input rectifier in dual-stage design with MOV and X-cap filtering prior to PFC controller. Use Value: -65°C to +150°C operating range ensures startup at low temperature and sustained operation under enclosure heating. | Use Scenario: Online UPS with automatic bypass and line-interactive topology. IC Role / Device Role / Timing Role: Rectifier in auxiliary power supply that remains active during battery mode to sustain control logic. Use Value: 50A IFSM withstands generator-sourced surges and utility switching transients without failure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fast recovery rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1L08S | 800V VRRM, 1A IO, 150ns trr, TO-277 package | Lower current rating requires parallel use for 1.5A loads; faster recovery suits higher-frequency designs | Select when board space allows larger TO-277 footprint and trr <200ns is critical |
| ON Semiconductor MUR160 | 600V VRRM, 1A IO, 75ns trr, DO-41 through-hole | Insufficient voltage rating for universal-input AC/DC; not SMT-compatible | Only suitable for 115VAC-only or low-voltage DC-DC input stages with through-hole assembly |
Compared with STTH1L08S and MUR160, RS2KA-13-F uniquely balances 1.5A current, 800V rating, SMA SMT compatibility, and 250ns recovery-making it optimal for cost-sensitive, space-constrained industrial and consumer AC/DC converters where 600V alternatives risk overstress and 1A devices require derating.
Availability
RS2KA-13-F is available at Aetrix Electronics and suitable for AC/DC power adapters, LED driver modules, and industrial embedded power supplies requiring stable component supply across multi-year production cycles.
Supply support for RS2KA-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, 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 robustness in AC line rectification, surge resilience, and automated SMT manufacturability in cost-sensitive power systems.
FAQ
What is the maximum allowable PCB pad temperature during reflow soldering for RS2KA-13-F?
The RS2KA-13-F is rated for Moisture Sensitivity Level 1 per J-STD-020, meaning it may be exposed to unlimited floor life and withstand peak reflow temperatures up to 260°C for 10 seconds. Its molded plastic package and matte tin plating are qualified for standard lead-free reflow profiles without delamination or solderability degradation.
Does RS2KA-13-F meet AEC-Q101 qualification for automotive use?
No-RS2KA-13-F is not AEC-Q101 qualified. The datasheet explicitly states that automotive-grade versions require specific change control, PPAP capability, and IATF 16949 manufacturing; this part is intended for industrial and commercial applications only. For automotive use, Diodes offers the RS2KHE3_A/H variant with full AEC-Q101 certification.
How does the 20°C/W thermal resistance translate to real-world PCB layout?
RθJT = 20°C/W assumes mounting on a 5.0 mm² copper pad (0.013 mm thick). To achieve this, designers must use the recommended SMA pad layout (C = 4.00 mm, G = 1.50 mm, X = 2.50 mm) with at least two thermal vias per pad connected to inner-layer ground planes, avoiding excessive solder mask coverage over thermal pads.
Can RS2KA-13-F replace RS2MA-13-F in an existing design?
Yes-RS2KA-13-F (800V) and RS2MA-13-F (1000V) share identical SMA package, pinout, thermal characteristics, and forward voltage. Substituting RS2KA-13-F for RS2MA-13-F is safe if the circuit's peak reverse voltage never exceeds 800V; however, doing so reduces voltage margin by 200V, which may compromise reliability in high-line or surge-prone environments.
RS2KA-13-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- DO-214AC, SMA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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:
- SMA
- Operating Temperature - Junction:
- -65°C ~ 150°C
RS2KA-13-F FAQ
1.How can I place an order for RS2KA-13-F through Aetrix?
Please submit a Request for Quotation (RFQ) for RS2KA-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 RS2KA-13-F reliable?
The price and inventory of RS2KA-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 RS2KA-13-F is usually 5 days.
3.What payment methods are accepted for RS2KA-13-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RS2KA-13-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RS2KA-13-F?
RS2KA-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RS2KA-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 RS2KA-13-F?
For technical support, including RS2KA-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RS2KA-13-F requirements.
6.How does Aetrix verify that RS2KA-13-F is sourced from the original manufacturer or authorized distributors?
All RS2KA-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 RS2KA-13-F meets industry standards.
7.What is the process for return or replacement of RS2KA-13-F?
All RS2KA-13-F units undergo pre-shipment inspection (PSI). If there is an issue with RS2KA-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 RS2KA-13-F part is unused and in its original packaging.
Return procedure for RS2KA-13-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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