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Diodes Incorporated RS1K-13
- Part No.:
- RS1K-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
RS1K-13.pdf
- Description:
- DIODE GEN PURP 800V 1A SMA
- Quantity:
- Payment:
- Shipping:
Inventory:9,759
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Product details
Overview
RS1K-13 from Diodes Incorporated is a surface-mount fast recovery rectifier diode rated for 800 V peak repetitive reverse voltage, 1.0 A average forward current, and 30 A non-repetitive surge current, with 150 ns reverse recovery time and 1.3 V forward voltage drop at 1.0 A - used in AC/DC front-end rectification, switch-mode power supply output stages, and DC-DC converter freewheeling paths.
For engineers reviewing the RS1K-13 datasheet, RS1K-13 pinout, RS1K-13 application, or RS1K-13 equivalent, key selection criteria include its 800 V VRRM rating, fast 150 ns tRR, SMA package thermal resistance of 20 °C/W, RoHS-compliant lead-free finish, and suitability for automated SMT assembly in industrial and consumer power supplies.
Technical Context
This discrete silicon PN junction rectifier employs glass-passivated die construction to ensure stable reverse leakage and robust surge tolerance. Its fast recovery characteristic (tRR = 150 ns) enables high-frequency operation up to ~100 kHz in SMPS topologies without excessive switching loss.
The device operates across –65 °C to +150 °C, with thermal resistance RθJT = 20 °C/W enabling reliable 1.0 A conduction at terminal temperatures up to +120 °C. Reverse leakage remains ≤5.0 µA at 25 °C and ≤200 µA at 125 °C under rated blocking voltage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 800 V - supports input rectification in 400 VAC line-derived systems with safety margin |
| IO (at TT = +120°C) | 1.0 A - continuous DC output current capability in thermally constrained PCB layouts |
| tRR | 150 ns - enables efficient operation in 50–100 kHz switch-mode power converters |
| VFM @ 1.0 A | 1.3 V - low conduction loss yielding ~1.3 W dissipation at full load |
| IFSM (8.3 ms) | 30 A - withstands inrush surges during cold-start of offline PSUs |
| RθJT | 20 °C/W - allows direct thermal coupling to copper pour for passive cooling |
| IR @ 25°C | ≤5.0 µA - ensures minimal standby power loss in energy-sensitive designs |
Pinout & Package
SMA (DO-214AC) surface-mount package: molded plastic case (UL 94V-0), cathode band polarity marking, matte tin-plated copper alloy leads, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry node | Connected to lower-potential side (e.g., transformer secondary center-tap or switching node) |
| Cathode | Forward current exit node / reverse-blocking terminal | Marked with band; ties to output rail or filter capacitor positive; blocks 800 V reverse |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated die | Eliminates need for hermetic sealing while maintaining IR stability and humidity resistance |
| Fast 150 ns recovery | Reduces reverse recovery charge (Qrr) to ~25 nC, minimizing switching loss and EMI in high-frequency SMPS |
| 30 A surge rating | Survives 8.3 ms half-sine inrush events common in universal-input AC/DC adapters |
| Lead-free & halogen-free | Meets RoHS 3 (2015/863/EU) and "Green" compliance: Br+Cl <1500 ppm, Sb <1000 ppm |
Applications
| AC/DC Adapter Front-End | Industrial SMPS Output Rectification |
|---|---|
Use Scenario: Universal-input (90–264 VAC) wall adapter converting to 5–24 VDC for consumer electronics. IC Role / Device Role / Timing Role: Primary-side bridge rectifier replacing four discrete diodes; conducts during positive half-cycles only. Use Value: 800 V VRRM provides 2× margin over 375 V peak line voltage; 150 ns tRR reduces switching loss vs. standard recovery diodes. | Use Scenario: Secondary-side synchronous rectification replacement in 48 V telecom PSUs operating at 100 kHz. IC Role / Device Role / Timing Role: Freewheeling diode across transformer secondary winding during MOSFET off-time. Use Value: Low 1.3 V VFM minimizes conduction loss at 1 A load; 20 °C/W RθJT enables compact heatsinking on 1 oz copper. |
| DC-DC Converter Flyback Snubber | LED Driver Input Stage |
Use Scenario: Clamp diode in RCD snubber network across flyback transformer primary. IC Role / Device Role / Timing Role: Conducts transient voltage spikes during MOSFET turn-off, absorbing leakage inductance energy. Use Value: 30 A IFSM handles short-duration clamp pulses; fast tRR prevents re-conduction delay that could cause voltage overshoot. | Use Scenario: Bridge rectifier in constant-current LED driver for street lighting (input: 230 VAC). IC Role / Device Role / Timing Role: Converts AC line to pulsating DC before bulk capacitor and buck controller stage. Use Value: 150 °C max TJ rating ensures reliability in enclosed outdoor enclosures; RoHS/Green compliance meets EU lighting directives. |
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 | Same 800 V VRRM, but tRR = 125 ns; VF = 1.25 V @ 1 A; TO-220AC package | Requires through-hole mounting and heatsink; higher thermal mass limits dynamic response | Preferred where board space permits and higher surge robustness (IFSM = 50 A) is needed |
| ON Semi MUR108 | 800 V VRRM, tRR = 75 ns, VF = 1.2 V @ 1 A; SMA package, same footprint | Lower Qrr and faster recovery reduce EMI in noise-sensitive lighting apps | Best for high-frequency (>150 kHz) designs where 150 ns tRR may limit efficiency |
Compared with STTH1R08 and MUR108, RS1K-13 offers optimal balance of ultra-fast recovery, SMT compatibility, and cost-effective RoHS/Green compliance - making it ideal for space-constrained, high-volume AC/DC and DC-DC converters requiring 1 A/800 V performance.
Availability
RS1K-13 is available at Aetrix Electronics and suitable for AC/DC adapters, industrial switch-mode power supplies, and LED driver input stages requiring stable component supply, consistent parametric performance, and full RoHS/Green compliance.
Supply support for RS1K-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, serving automotive, industrial, computing, and consumer markets with high-reliability components.
RS1K-13 belongs to the RS1x/B fast recovery rectifier product line, engineered specifically for high-efficiency, high-frequency power conversion in compact SMT designs where thermal management and surge resilience are critical.
FAQ
What is the maximum junction temperature for RS1K-13?
The RS1K-13 has an absolute maximum junction temperature of +150 °C and a storage temperature range of –65 °C to +150 °C. Derating begins at terminal temperatures above +120 °C, where average forward current drops linearly to zero at +150 °C per Figure 1 in DS15002 Rev. 15–2.
Is RS1K-13 compatible with lead-free reflow soldering profiles?
Yes - RS1K-13 features a matte tin annealed finish over copper alloy leadframe and is qualified for standard Pb-free reflow per JEDEC J-STD-020. Its moisture sensitivity level is Grade 1, eliminating bake requirements prior to assembly.
How does RS1K-13 differ from RS1KB-13?
RS1K-13 uses the SMA (DO-214AC) package (2.29–2.92 mm width), while RS1KB-13 uses the larger SMB (DO-214AA) package (3.30–3.94 mm width). Both share identical electrical specs (800 V VRRM, 150 ns tRR, etc.), but RS1KB-13 offers 10% higher thermal mass and 30% higher IFSM margin due to larger copper content.
Can RS1K-13 be used in place of a standard recovery rectifier like 1N4007?
No - although both are 1 A rectifiers, RS1K-13's 150 ns tRR and 1.3 V VF are optimized for high-frequency switching (≥50 kHz), whereas 1N4007 (tRR > 2 µs, VF ≈ 1.1 V at 1 A) is intended for 50/60 Hz line frequency. Substituting RS1K-13 improves efficiency in SMPS but offers no benefit in linear supplies.
RS1K-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):
- 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:
- SMA
- Operating Temperature - Junction:
- -65°C ~ 150°C
RS1K-13 FAQ
1.How can I place an order for RS1K-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for RS1K-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 RS1K-13 reliable?
The price and inventory of RS1K-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RS1K-13 is usually 5 days.
3.What payment methods are accepted for RS1K-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RS1K-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RS1K-13?
RS1K-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RS1K-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 RS1K-13?
For technical support, including RS1K-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RS1K-13 requirements.
6.How does Aetrix verify that RS1K-13 is sourced from the original manufacturer or authorized distributors?
All RS1K-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 RS1K-13 meets industry standards.
7.What is the process for return or replacement of RS1K-13?
All RS1K-13 units undergo pre-shipment inspection (PSI). If there is an issue with RS1K-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 RS1K-13 part is unused and in its original packaging.
Return procedure for RS1K-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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