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Diodes Incorporated RS2B-13
- Part No.:
- RS2B-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
RS2B-13.pdf
- Description:
- DIODE GEN PURP 100V 1.5A SMB
- Quantity:
- Payment:
- Shipping:
Inventory:5,657
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Product details
Overview
RS2B-13 from Diodes Incorporated is a 100 V peak repetitive reverse voltage, 1.5 A average rectified current, surface-mount fast recovery rectifier in SMA package with 150 ns reverse recovery time, 1.3 V forward voltage at 1.5 A, and 50 A non-repetitive surge rating - used in AC/DC input stage of compact switch-mode power supplies.
For engineers reviewing the RS2B-13 datasheet, RS2B-13 pinout, RS2B-13 application, or RS2B-13 equivalent, key selection criteria include reverse recovery time for high-frequency efficiency, thermal resistance for board-level heat dissipation, forward voltage drop impact on conduction loss, and UL 94V-0 flammability compliance for safety-critical designs.
Technical Context
This device is a glass-passivated silicon junction diode optimized for fast switching in offline SMPS front-end rectification. Its 150 ns trr enables operation up to ~100 kHz without excessive switching loss, while the 20 K/W junction-to-terminal thermal resistance requires ≥5 mm² copper pad for rated 1.5 A current at 120°C terminal temperature.
The SMA package supports automated pick-and-place assembly and features solderable terminals per MIL-STD-202 Method 208. Polarity is marked by cathode band; reverse leakage is specified at 5.0 µA (25°C) and 200 µA (125°C) under full DC blocking voltage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 100 V - maximum allowable repetitive reverse voltage before breakdown; defines safe operating margin in 85–265 VAC input rectification. |
| IO @ TT=120°C | 1.5 A - continuous DC output current capability when terminal temperature is held at 120°C using PCB copper as heatsink. |
| VFM @ IF=1.5A | 1.3 V - forward conduction loss per diode; contributes ~1.95 W dissipation at full load, driving thermal design. |
| trr | 150 ns - measured at IF=0.5A, IR=1.0A, Irr=0.25A; enables efficient operation in 50–100 kHz SMPS without excessive reverse recovery loss. |
| IFSM | 50 A - single half-sine surge rating (8.3 ms); withstands inrush currents during cold-start of power supplies. |
| RJT | 20 K/W - thermal resistance from junction to terminal; requires minimum 5.0 mm² copper pad (0.013 mm thick) for datasheet-rated current. |
Pinout & Package
SMA package: molded plastic case with solder-plated terminals; cathode identified by band; weight ≈ 0.065 g; UL 94V-0 rated.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | AC input connection point | Accepts incoming alternating waveform; must withstand peak inverse voltage and surge current during negative half-cycle. |
| Cathode | DC output connection point | Delivers rectified unidirectional current to bulk capacitor; polarity marking ensures correct orientation in bridge or single-diode configuration. |
Key Features
| Feature | Design Value |
|---|---|
| Fast recovery time | 150 ns trr enables high-frequency rectification with low switching loss in compact 50–100 kHz SMPS designs. |
| Glass passivated die | Enhances reliability and moisture resistance versus epoxy-passivated alternatives, supporting industrial temperature cycling. |
| UL 94V-0 plastic case | Meets flame-retardant safety requirement for end equipment certified to IEC/EN 62368-1 or UL 62368-1. |
| Automated assembly compatible | SMA footprint aligns with JEDEC MS-013 standard; supports high-yield SMT reflow and AOI inspection. |
Applications
| AC/DC Adapter Input Stage | USB PD Power Supply Rectification |
|---|---|
Use Scenario: 100–120 VAC input rectification in compact wall adapters delivering 20–65 W. IC Role / Device Role / Timing Role: Fast recovery rectifier in single-phase bridge or voltage-doubler configuration. Use Value: 150 ns trr minimizes reverse recovery charge loss, improving efficiency over standard recovery diodes at 65–100 kHz switching frequencies. | Use Scenario: Primary-side rectification in USB PD 3.0 compliant 45 W power supplies with active clamp flyback topology. IC Role / Device Role / Timing Role: Output rectifier handling high-frequency AC ripple from transformer secondary. Use Value: 1.3 V VFM at 1.5 A reduces conduction loss relative to Schottky alternatives above 60 V, enabling higher voltage tolerance without thermal penalty. |
| Industrial IoT Power Module | LED Driver Input Bridge |
Use Scenario: DIN-rail mounted 24 VDC power module accepting universal 85–305 VAC input for factory automation sensors. IC Role / Device Role / Timing Role: High-reliability rectifier in full-wave bridge with extended temperature operation. Use Value: -65°C to +150°C operating range and 200 µA IR at 125°C ensure stable performance in unventilated enclosures. | Use Scenario: Off-line LED driver for street lighting with 100–277 VAC input and constant-current output. IC Role / Device Role / Timing Role: Input-stage rectifier in bridge configuration feeding PFC controller. Use Value: 50 A IFSM withstands repeated cold-start surges from large bulk capacitors, extending lifetime in outdoor environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fast recovery rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1L06U | TO-277 package (SMD), 600 V VRRM, 1.1 A IO, 75 ns trr | Higher voltage rating but lower current; suited for higher-voltage PFC stages, not direct replacement for 100 V/1.5 A use. | Select when system requires >400 V blocking with ultrafast recovery; verify thermal interface due to different package RθJL. |
| ON Semiconductor MUR120 | SMB package, 200 V VRRM, 1.0 A IO, 75 ns trr | Lower current rating and different footprint; requires PCB redesign; better for 200 V systems needing faster trr. | Choose only if board layout allows SMB and application operates below 1.0 A average current; check derating at elevated ambient. |
Compared with RS2B-13, STTH1L06U offers higher voltage and faster recovery but sacrifices current capacity and thermal performance in SMA, while MUR120 trades current and package compatibility for speed and voltage - neither matches RS2B-13's balanced 100 V/1.5 A/150 ns specification in SMA.
Availability
RS2B-13 is available at Aetrix Electronics and suitable for AC/DC adapters, USB PD power supplies, industrial IoT power modules, and LED driver input bridges requiring stable component supply across production lifecycles.
Supply support for RS2B-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 the Americas.
The RS2x series belongs to Diodes' general-purpose fast recovery rectifier product line, engineered for cost-sensitive, high-volume AC/DC conversion in consumer, industrial, and lighting applications where reliability and thermal robustness are critical.
FAQ
What is the maximum junction temperature for RS2B-13?
The absolute maximum junction temperature is +150°C, consistent with its specified operating temperature range of –65°C to +150°C. This rating assumes proper thermal management via ≥5 mm² copper pad per the datasheet's RJT test condition; exceeding this temperature risks parametric shift and long-term reliability degradation.
Can RS2B-13 replace a standard recovery rectifier in an existing 60 Hz transformer-based power supply?
Yes - RS2B-13 can directly replace slower rectifiers (e.g., 1N4007) in linear supplies, but its fast recovery offers no benefit at 60 Hz. However, its lower VFM (1.3 V vs. ~1.6 V) reduces conduction loss and improves efficiency slightly, provided thermal design accommodates the same power dissipation.
Is RS2B-13 lead-free and RoHS compliant?
Yes - RS2B-13 is manufactured with lead-free terminations and complies with EU RoHS Directive 2011/65/EU and China RoHS. The device meets J-STD-020 moisture sensitivity level (MSL) 1, meaning it is not moisture-sensitive and does not require dry-pack or baking prior to reflow.
Does RS2B-13 have SPICE model support?
Yes - Diodes Incorporated provides verified SPICE models for RS2B-13 (listed as "RS2B" in DS15004 Rev. E-2). The model includes nonlinear capacitance, temperature-dependent forward conduction, and reverse recovery dynamics calibrated to datasheet curves for accurate simulation in PSpice, LTspice, and other industry tools.
RS2B-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):
- 100 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):
- 150 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 100 V
- Capacitance @ Vr, F:
- 30pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMB
- Operating Temperature - Junction:
- -65°C ~ 150°C
RS2B-13 FAQ
1.How can I place an order for RS2B-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for RS2B-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 RS2B-13 reliable?
The price and inventory of RS2B-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RS2B-13 is usually 5 days.
3.What payment methods are accepted for RS2B-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RS2B-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RS2B-13?
RS2B-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RS2B-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 RS2B-13?
For technical support, including RS2B-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RS2B-13 requirements.
6.How does Aetrix verify that RS2B-13 is sourced from the original manufacturer or authorized distributors?
All RS2B-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 RS2B-13 meets industry standards.
7.What is the process for return or replacement of RS2B-13?
All RS2B-13 units undergo pre-shipment inspection (PSI). If there is an issue with RS2B-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 RS2B-13 part is unused and in its original packaging.
Return procedure for RS2B-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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