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Diodes Incorporated RS1B-13
- Part No.:
- RS1B-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
RS1B-13.pdf
- Description:
- DIODE GEN PURP 100V 1A SMA
- Quantity:
- Payment:
- Shipping:
Inventory:4,930
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Product details
Overview
RS1B-13 from Diodes Incorporated is a surface-mount fast recovery rectifier diode rated for 100 V peak repetitive reverse voltage, 1.0 A average forward current, and 30 A non-repetitive surge current, with 250 ns maximum reverse recovery time and 1.3 V forward voltage drop at 1.0 A - used in AC/DC input stage rectification for compact power adapters and offline SMPS.
For engineers reviewing the RS1B-13 datasheet, RS1B-13 pinout, RS1B-13 application, or RS1B-13 equivalent, key selection criteria include reverse recovery time, thermal resistance (20 °C/W), RoHS-compliant lead-free finish, SMB package footprint compatibility, and 125 °C operating temperature capability in high-density PCB layouts.
Technical Context
This discrete fast recovery rectifier employs glass-passivated silicon die construction to achieve stable junction characteristics and robust surge tolerance. Its 250 ns reverse recovery time enables efficient operation in 50–100 kHz switching converters without excessive switching loss or EMI generation.
The device operates across –65 °C to +150 °C, with thermal resistance of 20 °C/W (junction-to-terminal), enabling direct mounting on copper pour for thermal management. Polarity is indicated by a cathode band on the SMB package body, and terminals are matte tin annealed over copper alloy for MIL-STD-202 solderability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 100 V - blocks up to 100 V reverse voltage in AC line rectification without breakdown |
| IO | 1.0 A @ TT = +120°C - supports continuous output current in compact power supplies with adequate heatsinking |
| tRR | 250 ns - minimizes switching loss and ringing in 50–100 kHz flyback and buck-derived topologies |
| VFM | 1.3 V @ IF = 1.0 A - determines conduction loss and thermal dissipation in high-duty-cycle applications |
| IFSM | 30 A (8.3 ms half-sine) - withstands inrush surges during cold-start of universal-input AC/DC converters |
| RθJT | 20 °C/W - defines temperature rise per watt at the terminal, critical for PCB copper area sizing |
| IRM | 200 µA @ TA = +125°C - limits leakage-induced standby power in energy-efficient designs |
Pinout & Package
SMB (DO-214AA) surface-mount package: molded plastic case (UL 94V-0), cathode band marking, 3.30–3.94 mm length × 4.06–4.57 mm width × 1.96–2.21 mm height, 0.093 g mass.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to AC input or transformer secondary low-side; requires adequate trace width for 1.0 A RMS |
| Cathode | Forward current exit / reverse voltage blocking node | Connected to bulk capacitor positive rail; polarity must match silkscreen cathode band |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated die | Enhances humidity resistance and long-term reliability under reflow and operational bias stress |
| Fast recovery (250 ns) | Reduces reverse recovery charge (Qrr) to ~25 nC, lowering EMI and improving efficiency vs. standard rectifiers |
| 30 A surge rating | Supports repeated cold-start events in universal-input 85–265 VAC adapters without degradation |
| Lead-free & halogen-free | Meets RoHS 3 and JEDEC J-STD-020 Level 1 moisture sensitivity for standard SMT assembly |
Applications
| AC/DC Power Adapters | Offline SMPS Input Stage |
|---|---|
Use Scenario: Universal-input (85–265 VAC) 5–24 W wall adapters for consumer electronics. IC Role / Device Role: Primary-side bridge or single-diode rectifier in voltage-doubler or full-wave configurations. Use Value: 250 ns tRR reduces switching loss and audible noise compared to 1N4007-class diodes, enabling smaller heatsinks. | Use Scenario: Input rectification in 65–100 kHz flyback converters for industrial IoT power modules. IC Role / Device Role: Fast recovery diode in discrete bridge or half-wave configuration feeding bulk capacitor. Use Value: 20 °C/W RθJT allows direct thermal coupling to PCB ground plane, eliminating need for thermal vias in space-constrained modules. |
| LED Driver Input Rectification | UPS & Battery Charger Input Stage |
Use Scenario: Constant-voltage LED drivers with passive PFC for commercial lighting fixtures. IC Role / Device Role: High-efficiency rectifier in valley-fill or quasi-resonant input stage. Use Value: 1.3 V VFM ensures <1.3 W conduction loss at 1.0 A, minimizing thermal derating in enclosed housings. | Use Scenario: Line-powered battery chargers for 12 V/24 V lead-acid systems in telecom backup units. IC Role / Device Role: Surge-tolerant rectifier handling repetitive 30 A inrush during AC restoration events. Use Value: 30 A IFSM rating eliminates need for external NTC thermistors or inrush limiters in cost-sensitive designs. |
Availability
RS1B-13 is available at Aetrix Electronics and suitable for AC/DC power adapters, offline SMPS input stages, LED driver rectification, and UPS/battery charger input circuits requiring stable component supply, consistent parametric performance, and RoHS-compliant manufacturing.
Supply support for RS1B-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 RS1x/B series belongs to Diodes' general-purpose fast recovery rectifier product line, engineered specifically for high-efficiency, high-reliability AC input rectification in space-constrained, thermally demanding power conversion applications.
FAQ
What is the SMB package outline for RS1B-13?
The RS1B-13 uses the SMB (DO-214AA) package: dimensions are 3.30–3.94 mm (L) × 4.06–4.57 mm (W) × 1.96–2.21 mm (H), with cathode band marking, matte tin-plated copper alloy leads, and UL 94V-0 flammability rating. Pad layout recommendations are published in Diodes' package outline documentation.
How does RS1B-13 differ from RS1A-13?
RS1B-13 has a 100 V peak repetitive reverse voltage (VRRM) and 250 ns reverse recovery time (tRR), while RS1A-13 is rated for 50 V VRRM and 150 ns tRR. Both share identical SMB packaging, 1.0 A IO rating, and thermal resistance, but RS1B-13 supports higher-line applications like 100–240 VAC universal inputs.
Is RS1B-13 suitable for use in automotive applications?
RS1B-13 is not AEC-Q101 qualified and lacks automotive-grade screening, temperature cycling, or PPAP documentation. It is rated for –65 °C to +150 °C operation but is intended for industrial, consumer, and computing power supplies-not safety-critical automotive ECUs or ADAS subsystems.
What is the maximum junction temperature for continuous operation?
The RS1B-13 has a maximum junction temperature (TJ) of +150 °C. Continuous operation at full 1.0 A IO requires terminal temperature (TT) ≤ +120 °C per derating curve; at +120 °C TT, junction temperature reaches +150 °C given RθJT = 20 °C/W, limiting usable power dissipation to 1.5 W without additional heatsinking.
RS1B-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- DO-214AC, SMA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 100 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 @ 100 V
- Capacitance @ Vr, F:
- 15pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMA
- Operating Temperature - Junction:
- -65°C ~ 150°C
RS1B-13 FAQ
1.How can I place an order for RS1B-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for RS1B-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 RS1B-13 reliable?
The price and inventory of RS1B-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RS1B-13 is usually 5 days.
3.What payment methods are accepted for RS1B-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RS1B-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RS1B-13?
RS1B-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RS1B-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 RS1B-13?
For technical support, including RS1B-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RS1B-13 requirements.
6.How does Aetrix verify that RS1B-13 is sourced from the original manufacturer or authorized distributors?
All RS1B-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 RS1B-13 meets industry standards.
7.What is the process for return or replacement of RS1B-13?
All RS1B-13 units undergo pre-shipment inspection (PSI). If there is an issue with RS1B-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 RS1B-13 part is unused and in its original packaging.
Return procedure for RS1B-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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