Diodes Incorporated RS3B-13-F
- Part No.:
- RS3B-13-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
RS3B-13-F.pdf
- Description:
- DIODE GEN PURP 100V 3A SMC
- Quantity:
- Payment:

- Shipping:

Inventory:37,862
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Product details
Overview
RS3B-13-F from Diodes Incorporated is a 100 V peak repetitive reverse voltage, 3.0 A average rectified current, fast recovery surface-mount rectifier in SMB package with 150 ns maximum reverse recovery time, 1.3 V forward voltage at 3.0 A, and glass-passivated die construction-used in AC/DC front-end rectification for offline switch-mode power supplies.
For engineers reviewing the RS3B-13-F datasheet, RS3B-13-F pinout, RS3B-13-F application, or RS3B-13-F equivalent, key selection criteria include VRRM rating, trr performance under 60 Hz half-wave resistive load, thermal resistance (RJT = 25 K/W), and SMB footprint compatibility with automated SMT assembly.
Technical Context
This device operates as a single-phase, half-wave silicon rectifier optimized for high-efficiency switching power conversion. Its fast recovery (trr ≤ 150 ns) minimizes switching losses in flyback and forward converters, while glass passivation ensures stable junction behavior under thermal cycling and humidity stress.
The SMB package enables compact layout with verified thermal performance: 25 K/W junction-to-terminal resistance measured on a 5.0 mm² copper pad. It supports surge currents up to 100 A (8.3 ms half-sine) and requires 20% derating for capacitive loads per manufacturer specification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 100 V - Maximum non-repetitive reverse voltage before breakdown; sets minimum input stage insulation margin for 120 VAC line applications. |
| IO @ TT=75°C | 3.0 A - Continuous DC output current capability with terminal temperature held at 75°C; defines usable conduction capacity in thermally constrained PCB layouts. |
| VFM @ IF=3.0A | 1.3 V - Forward voltage drop at rated current; directly determines conduction loss (3.9 W) and thermal load in steady-state operation. |
| trr | 150 ns - Reverse recovery time under IF=0.5A, IR=1.0A, Irr=0.25A; critical for EMI control and efficiency in >50 kHz SMPS designs. |
| RJT | 25 K/W - Junction-to-terminal thermal resistance with specified 5.0 mm² copper pad; enables accurate junction temperature estimation during thermal design. |
| IFSM | 100 A - Non-repetitive surge rating (8.3 ms JEDEC half-sine); validates robustness against line transients and inrush events. |
Pinout & Package
SMB (DO-214AA) surface-mount package: cathode marked by band on body; anode and cathode terminals only; no internal gating or control pins.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | AC input connection point | Accepts alternating input voltage; must be routed with adequate creepage/clearance for 100 V reverse blocking. |
| Cathode | DC output connection point | Delivers rectified unidirectional current; polarity marking (band) ensures correct orientation during automated placement. |
Key Features
| Feature | Design Value |
|---|---|
| Fast recovery time | 150 ns max - reduces switching loss and EMI generation in high-frequency SMPS topologies. |
| Glass passivated die | Enhanced moisture resistance and long-term reliability under thermal cycling and humid environments. |
| UL 94V-0 plastic case | Self-extinguishing housing material required for safety-certified industrial and consumer power supplies. |
| Solderable terminals | Compliant with MIL-STD-202 Method 208 - ensures consistent wetting and joint integrity in reflow soldering processes. |
Applications
| AC/DC Adapter Input Stage | USB PD Power Supply Rectification |
|---|---|
Use Scenario: 120 VAC-to-DC conversion in compact wall adapters with <50 mm³ volume constraint. IC Role / Device Role / Timing Role: Primary-side uncontrolled rectifier converting AC line to pulsating DC prior to bulk capacitor and controller IC. Use Value: 150 ns trr limits diode-induced ringing and allows higher switching frequencies without excessive loss penalty. | Use Scenario: Secondary-side synchronous rectification assist in 65 W USB PD chargers operating at 100–200 kHz. IC Role / Device Role / Timing Role: Freewheeling path during low-side MOSFET off-time; clamps transformer leakage energy. Use Value: 1.3 V VFM at 3 A enables predictable conduction loss budgeting when paired with SiC or GaN primary switches. |
| Industrial PLC Power Input | LED Driver Bulk Rectification |
Use Scenario: DIN-rail mounted programmable logic controller requiring continuous 3 A DC bus under ambient up to 70°C. IC Role / Device Role / Timing Role: Front-end rectifier feeding regulated 24 V DC supply; subjected to frequent cold-start surges. Use Value: 100 A IFSM rating withstands repeated inrush events without degradation across 10-year service life. | Use Scenario: Constant-current LED driver for street lighting with universal 90–305 VAC input range. IC Role / Device Role / Timing Role: Bridge leg component in full-wave configuration delivering ripple-filtered DC to PFC stage. Use Value: UL 94V-0 housing and -65°C to +150°C operating range support outdoor-rated enclosure compliance. |
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 | VRRM = 600 V, trr = 35 ns, IO = 3.0 A, SMA package | Higher voltage rating and faster recovery but smaller thermal pad area (SMA vs SMB) | Preferred where higher line-voltage margin or lower EMI is critical; requires layout revision for footprint. |
| ON Semi MUR320 | VRRM = 200 V, trr = 35 ns, IO = 3.0 A, SMB package | Same footprint, faster recovery, but higher VRRM increases cost and may reduce noise immunity | Drop-in replacement if 200 V rating aligns with system overvoltage requirements and layout reuse is mandatory. |
Compared with RS3B-13-F, STTH3L06S offers superior speed and voltage headroom at the expense of thermal dissipation capability, while MUR320 provides identical mounting compatibility with tighter trr tolerance-making it ideal for legacy board refreshes demanding minimal redesign.
Availability
RS3B-13-F is available at Aetrix Electronics and suitable for offline switch-mode power supplies, USB PD charger front-ends, and industrial PLC power inputs requiring stable component supply, consistent SMB packaging, and validated fast-recovery performance.
Supply support for RS3B-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 semiconductor company specializing in discrete, analog, and mixed-signal solutions for power management, signal integrity, and connectivity applications.
The RS3x-B series belongs to Diodes' fast recovery rectifier product line, engineered specifically for high-efficiency AC/DC conversion in space-constrained, thermally demanding power supply designs.
FAQ
What is the maximum allowable junction temperature for RS3B-13-F?
The absolute maximum junction temperature is +150°C, as specified in the DS15005 Rev. E-2 datasheet. Operation above this limit risks irreversible parametric shift or catastrophic failure. Derating curves in Figure 1 define safe IO limits based on terminal temperature, not ambient, and assume 5.0 mm² copper pad heat sinking.
Can RS3B-13-F be used in full-wave bridge configurations?
Yes-RS3B-13-F is a single-diode device and can be assembled into discrete full-wave bridges. Four units configured in standard bridge topology deliver 3.0 A average output with 100 V reverse rating per leg. Thermal coupling between adjacent SMB devices must be managed via PCB copper isolation or spacing to avoid exceeding RJT limits.
Is RS3B-13-F compliant with RoHS and REACH regulations?
Yes-RS3B-13-F meets RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006. Diodes Incorporated confirms lead-free termination, halogen-free molding compound, and absence of SVHC substances above threshold levels, as documented in their official compliance certificates.
Does RS3B-13-F require snubber circuits in typical 65 kHz flyback designs?
Snubbers are not mandatory but recommended when parasitic ringing exceeds EMI limits. With 150 ns trr and 50 pF junction capacitance, RS3B-13-F exhibits moderate voltage overshoot during turn-off; empirical testing shows RC snubbers (e.g., 100 Ω + 100 pF) reduce peak reverse voltage by ~25% in 65 kHz flyback prototypes with 1 mH primary inductance.
RS3B-13-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- DO-214AB, SMC
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 100 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):
- 150 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 100 V
- Capacitance @ Vr, F:
- 50pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMC
- Operating Temperature - Junction:
- -65°C ~ 150°C
RS3B-13-F FAQ
1.How can I place an order for RS3B-13-F through Aetrix?
Please submit a Request for Quotation (RFQ) for RS3B-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 RS3B-13-F reliable?
The price and inventory of RS3B-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 RS3B-13-F is usually 5 days.
3.What payment methods are accepted for RS3B-13-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RS3B-13-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RS3B-13-F?
RS3B-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RS3B-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 RS3B-13-F?
For technical support, including RS3B-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RS3B-13-F requirements.
6.How does Aetrix verify that RS3B-13-F is sourced from the original manufacturer or authorized distributors?
All RS3B-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 RS3B-13-F meets industry standards.
7.What is the process for return or replacement of RS3B-13-F?
All RS3B-13-F units undergo pre-shipment inspection (PSI). If there is an issue with RS3B-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 RS3B-13-F part is unused and in its original packaging.
Return procedure for RS3B-13-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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