Diodes Incorporated RS1G-13
- Part No.:
- RS1G-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
RS1G-13.pdf
- Description:
- DIODE GEN PURP 400V 1A SMA
- Quantity:
- Payment:

- Shipping:

Inventory:8,718
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Product details
Overview
RS1G-13 from Diodes Incorporated is a 1.0A surface-mount fast recovery rectifier in SMA package, rated for 400V peak repetitive reverse voltage (VRRM), 1.3V forward voltage drop at 1.0A, and 500ns reverse recovery time - deployed in AC/DC front-end rectification for offline switch-mode power supplies.
For engineers reviewing the RS1G-13 datasheet, RS1G-13 pinout, RS1G-13 application, or RS1G-13 equivalent, key selection criteria include VRRM rating, trr performance under 1A switching conditions, thermal resistance (20°C/W), and RoHS-compliant lead-free plating compatibility with automated reflow assembly.
Technical Context
This device uses glass-passivated silicon die to achieve fast recovery (trr = 500ns) with low stored charge, enabling high-frequency operation in flyback and boost PFC stages. Its 1.0A average rectified current rating is thermally limited to 120°C terminal temperature per derating curve.
The SMA package provides 20°C/W junction-to-terminal thermal resistance and supports JEDEC-standard 8.3ms half-sine surge immunity up to 30A - critical for handling line transients in universal-input 85–265VAC adapters.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 400 V - blocks 400V peak reverse voltage in bridge or single-diode rectifier configurations without breakdown |
| IO @ TT=120°C | 1.0 A - maximum continuous DC output current when terminal temperature held at 120°C |
| VFM @ IF=1.0A | 1.3 V - forward conduction loss directly impacts efficiency and thermal design in 1A-level power rails |
| trr | 500 ns - enables operation up to ~200 kHz before reverse recovery losses dominate switching loss |
| IFSM (8.3ms) | 30 A - withstands inrush surges during cold-start of AC-powered equipment without failure |
| RJT | 20 °C/W - defines thermal path efficiency from junction to PCB pad; requires adequate copper pour for 1A steady-state |
| CT @ 1MHz, 4V | 15 pF - parasitic capacitance affects EMI filtering and high-frequency ringing in snubberless designs |
Pinout & Package
SMA package: molded plastic case (UL 94V-0), cathode indicated by band on body, solderable matte tin-plated terminals, 2.29–2.92 mm width × 4.00–4.60 mm length × 1.27–1.63 mm height.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input for positive half-cycle conduction | Connected to AC source or transformer secondary; carries full load current during forward bias |
| Cathode | Output for rectified DC path | Connected to bulk capacitor or downstream converter input; polarity-marked by band on package body |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated die construction | Enables stable reverse leakage (<5µA at 25°C) and long-term reliability under humidity and thermal cycling |
| Fast recovery time (500ns) | Reduces switching loss and EMI generation compared to standard rectifiers in 100–300 kHz SMPS |
| RoHS-compliant lead-free finish | Meets EU Directive Annex exemptions for high-temp solder; compatible with Pb-free reflow profiles (J-STD-020C Level 1) |
| 30A non-repetitive surge rating | Supports robust cold-start behavior in universal-input AC/DC adapters without derating external fusing |
Applications
| LED Driver Power Supply | Industrial PLC Input Stage |
|---|---|
Use Scenario: Rectifying 100–277VAC input in constant-current LED drivers for street lighting. IC Role / Device Role / Timing Role: Primary-side unidirectional current path converting AC line to DC bus prior to buck or flyback regulation. Use Value: 400V VRRM safely handles 277VAC line peaks; 500ns trr minimizes switching noise coupling into sensitive current-sense circuitry. | Use Scenario: Input rectification for 24VDC power modules in programmable logic controllers. IC Role / Device Role / Timing Role: Front-end diode in bridge configuration supplying regulated 24V rail from 24VAC control transformers. Use Value: 1.0A IO rating matches typical PLC auxiliary supply loads; 20°C/W RJT allows direct mounting on FR4 without heatsink. |
| USB-C PD Adapter Secondary | Appliance Motor Control Board |
Use Scenario: Output rectification in 65W USB-C PD adapters using active clamp flyback topology. IC Role / Device Role / Timing Role: Synchronous rectifier replacement in secondary-side high-efficiency designs operating at ~150kHz. Use Value: Low VFM (1.3V) reduces conduction loss vs. Schottky alternatives above 100°C; 30A IFSM absorbs output capacitor inrush. | Use Scenario: Snubberless rectification in universal motor control boards for vacuum cleaners and power tools. IC Role / Device Role / Timing Role: Half-wave rectifier feeding triac-triggered phase-control circuitry from 120/230VAC mains. Use Value: 500ns trr prevents false triggering of zero-cross detection; glass passivation ensures stability in dusty, high-vibration 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 |
|---|---|---|---|
| STTH1R04U | Same VRRM (400V), lower trr (35ns), higher VFM (1.7V @ 1A) | Better for >500kHz ZVS/ZCS topologies; less efficient at high ambient temperature | Prefer when ultra-fast switching dominates over conduction loss |
| MBR140SFT1G | Lower VRRM (40V), Schottky structure, trr not applicable, VFM = 0.52V @ 1A | Only suitable for low-voltage DC-DC outputs; cannot replace RS1G-13 in AC line rectification | Select only for secondary-side <48V DC-DC rectification where low VFM is critical |
Compared with STTH1R04U and MBR140SFT1G, RS1G-13 delivers optimal balance of 400V blocking, 500ns recovery, and 1.3V forward drop - making it the default choice for cost-sensitive, thermally constrained 100–300 kHz AC/DC primary rectification where Schottky voltage limits preclude use.
Availability
RS1G-13 is available at Aetrix Electronics and suitable for offline AC/DC adapters, industrial control power supplies, and LED driver designs requiring stable component supply with consistent parametric performance across production lots.
Supply support for RS1G-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, specializing in high-reliability power management, signal integrity, and protection solutions.
The RS1x series targets cost-optimized, high-volume AC/DC front-end rectification - designed for automated SMT assembly in consumer, industrial, and lighting power supplies where thermal robustness and surge immunity are essential.
FAQ
Is RS1G-13 suitable for use in a 230VAC input bridge rectifier?
Yes. With 400V VRRM and 700V RMS rating, RS1G-13 exceeds the 325V peak of 230VAC and supports full-wave bridge configurations. Its 30A IFSM handles cold-start surges, and 20°C/W thermal resistance allows reliable operation with minimal PCB copper when ambient stays below 70°C.
What is the maximum operating frequency for RS1G-13 in a flyback converter?
Based on its 500ns reverse recovery time, RS1G-13 is optimized for operation up to approximately 200 kHz. At higher frequencies, reverse recovery losses increase significantly; for >300 kHz designs, consider ultrafast rectifiers with trr ≤ 75ns or synchronous MOSFET solutions.
Does RS1G-13 have a lead-free and RoHS-compliant finish?
Yes. RS1G-13 features matte tin-plated terminals and complies with RoHS Directive 2011/65/EU, including exemptions for high-temperature soldering and glass. It meets J-STD-020C moisture sensitivity Level 1 and is qualified for standard Pb-free reflow profiles.
Can RS1G-13 replace RS1J-13 in an existing design?
No - RS1J-13 has 600V VRRM and 250ns trr, while RS1G-13 is rated for 400V and 500ns. Substituting RS1G-13 in a 600V design risks reverse breakdown during line surges. Only acceptable if system-level testing confirms worst-case VRRM margin remains ≥20% above peak applied voltage.
RS1G-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- DO-214AC, SMA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 400 V
- Current - Average Rectified (Io):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 1.3 V @ 1 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 150 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 400 V
- Capacitance @ Vr, F:
- 15pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMA
- Operating Temperature - Junction:
- -65°C ~ 150°C
RS1G-13 FAQ
1.How can I place an order for RS1G-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for RS1G-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 RS1G-13 reliable?
The price and inventory of RS1G-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RS1G-13 is usually 5 days.
3.What payment methods are accepted for RS1G-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RS1G-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RS1G-13?
RS1G-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RS1G-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 RS1G-13?
For technical support, including RS1G-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RS1G-13 requirements.
6.How does Aetrix verify that RS1G-13 is sourced from the original manufacturer or authorized distributors?
All RS1G-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 RS1G-13 meets industry standards.
7.What is the process for return or replacement of RS1G-13?
All RS1G-13 units undergo pre-shipment inspection (PSI). If there is an issue with RS1G-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 RS1G-13 part is unused and in its original packaging.
Return procedure for RS1G-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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