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Diodes Incorporated RS1KB-13
- Part No.:
- RS1KB-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
RS1KB-13.pdf
- Description:
- DIODE GEN PURP 800V 1A SMB
- Quantity:
- Payment:
- Shipping:
Inventory:2,811
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Product details
Overview
RS1KB-13 from Diodes Incorporated is a 1.0A surface-mount fast recovery rectifier in SMB package, rated for 800V peak repetitive reverse voltage (VRRM), 1.3V forward voltage drop at 1.0A, and 250ns reverse recovery time - deployed in AC/DC front-end rectification and offline SMPS input stages.
For engineers reviewing the RS1KB-13 datasheet, RS1KB-13 pinout, RS1KB-13 application, or RS1KB-13 equivalent, key selection criteria include VRRM derating for 60Hz line surge, thermal resistance (20°C/W) for PCB copper area planning, and trr-driven switching loss trade-offs in PFC and flyback converters.
Technical Context
This device uses glass-passivated silicon die to achieve fast recovery (250ns) with low forward conduction loss (1.3V @ 1.0A), enabling high-efficiency operation in 50–60Hz rectification and medium-frequency (<100kHz) switch-mode power supplies. Its 30A non-repetitive surge rating supports inrush current handling without derating.
The SMB package provides higher thermal dissipation than SMA (RJT = 20°C/W vs. ~25°C/W), and its cathode band polarity marking aligns with industry-standard layout conventions for automated placement and optical inspection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 800 V - Withstands peak line transients up to 800V in universal-input AC/DC designs without breakdown. |
| IO @ TT=120°C | 1.0 A - Continuous DC output current capability when terminal temperature is held at 120°C via PCB heatsinking. |
| VFM @ IF=1.0A | 1.3 V - Forward conduction loss contributes ~1.3W dissipation at full load, dictating thermal pad sizing. |
| trr | 250 ns - Enables use in 65–100kHz flyback and boost PFC stages with manageable reverse recovery loss. |
| IFSM (8.3ms) | 30 A - Survives cold-start inrush surges in offline power supplies meeting JEDEC single-half-sine test. |
| CT @ 1MHz, 4V | 15 pF - Low junction capacitance minimizes EMI generation and capacitive coupling in high-dv/dt environments. |
Pinout & Package
SMB (DO-214AA) surface-mount package: molded plastic case, UL 94V-0 rated, cathode indicated by band on body; terminals are solder-plated for MIL-STD-202 compliance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | AC input node | Connected to transformer secondary or bridge input; carries full rectified half-wave current. |
| Cathode | DC output node | Feeds bulk capacitor or PFC stage; polarity marking ensures correct orientation during automated assembly. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated die | Enables stable reverse leakage performance across -65°C to +150°C operating range without passivation degradation. |
| Fast recovery (250ns) | Reduces switching losses in discontinuous-conduction-mode (DCM) PFC and auxiliary windings of flyback converters. |
| RoHS-compliant lead-free finish | Meets EU Directive Annex exemptions for high-temp soldering; compatible with standard reflow profiles (peak ≤260°C). |
| 30A surge rating | Eliminates need for external NTC thermistors in cost-sensitive consumer power adapters with high cold-start stress. |
Applications
| AC/DC Adapter Input Stage | Industrial PLC Power Supply |
|---|---|
Use Scenario: Rectifies 100–240VAC input in compact wall-wart adapters with <15W output. IC Role / Device Role / Timing Role: Primary-side unidirectional current path; operates at 50/60Hz with minimal conduction loss. Use Value: 1.3V VFM enables >85% efficiency at light load while 800V VRRM accommodates 264VAC + 10% tolerance and line spikes. | Use Scenario: Front-end rectification in DIN-rail mounted 24V/48V industrial PSUs with wide ambient (-25°C to +70°C). IC Role / Device Role / Timing Role: High-reliability AC input diode with extended temperature margin and surge immunity. Use Value: 30A IFSM withstands repeated motor-controller startup surges; SMB package improves thermal coupling to metal chassis. |
| LED Driver Bulk Capacitor Charging | UPS Battery Charger Input |
Use Scenario: Charges bulk electrolytic capacitor after bridge rectifier in constant-current LED drivers. IC Role / Device Role / Timing Role: Fast-recovery path minimizing reverse conduction loss during capacitor recharge cycles. Use Value: 250ns trr reduces energy loss per cycle versus standard recovery diodes, improving thermal stability in enclosed fixtures. | Use Scenario: Input rectification in online UPS systems where battery charging must operate continuously under brownout conditions. IC Role / Device Role / Timing Role: High-VRRM diode supporting 277VAC nominal input with sustained 300VAC operation. Use Value: 800V rating allows direct use on 277VAC circuits without series stacking; 20°C/W RJT supports forced-air-cooled layouts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fast recovery rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1R08 | VRRM = 800V, trr = 150ns, VFM = 1.7V @ 1.0A, DO-214AA package | Lower trr but higher VFM increases conduction loss in low-voltage-output adapters | Prefer when switching frequency >150kHz dominates loss budget over conduction loss. |
| ON Semi MUR108 | VRRM = 800V, trr = 75ns, VFM = 1.85V @ 1.0A, DO-214AA package | Ultra-fast trr suits resonant LLC topologies but higher VFM raises thermal demand in space-constrained designs | Select only if reverse recovery EMI is critical and board area allows larger heatsink for 0.55V higher drop. |
Compared with RS1KB-13, STTH1R08 trades faster recovery for higher forward loss, while MUR108 further emphasizes speed at the expense of thermal efficiency - RS1KB-13 balances both for mainstream 65–100kHz offline converters where conduction and switching losses are co-dominant.
Availability
RS1KB-13 is available at Aetrix Electronics and suitable for AC/DC adapters, industrial PLC power supplies, and LED driver bulk charging requiring stable component supply and RoHS-compliant manufacturing.
Supply support for RS1KB-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 centers across Asia and Europe.
The RS1x series targets cost-sensitive, high-volume power conversion applications where reliability, thermal robustness, and standardized packaging are prioritized over ultra-high-speed switching.
FAQ
What is the maximum allowable junction temperature for RS1KB-13?
The absolute maximum junction temperature is +150°C, with continuous operation limited to 120°C terminal temperature (TT) per the derating curve. At TT = 120°C, IO = 1.0A; above this, current must be linearly reduced to maintain Tj ≤ 150°C using RJT = 20°C/W and ambient thermal conditions.
Can RS1KB-13 replace RS1JB-13 in an existing design?
Yes - both share identical SMB package, pinout, and thermal characteristics. RS1KB-13 has VRRM = 800V and trr = 250ns, while RS1JB-13 is rated for 600V VRRM and 150ns trr. Substitution is safe if the 800V rating meets system surge requirements and the slower trr does not increase switching loss beyond acceptable limits.
Is RS1KB-13 suitable for use in a 13.56MHz RFID reader power supply?
No - RS1KB-13 is optimized for 50/60Hz to ~100kHz rectification. At 13.56MHz, its 15pF junction capacitance and 250ns recovery time cause excessive RF losses and potential resonance issues; Schottky or GaN-based synchronous rectifiers are required instead.
Does RS1KB-13 require a heatsink in a 1.0A, 25°C ambient design?
Not necessarily - with RJT = 20°C/W and 1.3W dissipation at 1.0A, junction rise is 26°C above terminal temperature. If PCB copper area maintains TT ≤ 90°C, Tj stays below 116°C. Heatsinking becomes necessary only when TT exceeds 100°C or ambient exceeds 60°C with limited airflow.
RS1KB-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):
- 800 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):
- 500 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 800 V
- Capacitance @ Vr, F:
- 15pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMB
- Operating Temperature - Junction:
- -65°C ~ 150°C
RS1KB-13 FAQ
1.How can I place an order for RS1KB-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for RS1KB-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 RS1KB-13 reliable?
The price and inventory of RS1KB-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RS1KB-13 is usually 5 days.
3.What payment methods are accepted for RS1KB-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RS1KB-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RS1KB-13?
RS1KB-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RS1KB-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 RS1KB-13?
For technical support, including RS1KB-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RS1KB-13 requirements.
6.How does Aetrix verify that RS1KB-13 is sourced from the original manufacturer or authorized distributors?
All RS1KB-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 RS1KB-13 meets industry standards.
7.What is the process for return or replacement of RS1KB-13?
All RS1KB-13 units undergo pre-shipment inspection (PSI). If there is an issue with RS1KB-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 RS1KB-13 part is unused and in its original packaging.
Return procedure for RS1KB-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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