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Diodes Incorporated SBL830
- Part No.:
- SBL830
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- TO-220-2
- Datasheet:
-
SBL830.pdf
- Description:
- DIODE SCHOTTKY 30V 8A TO220AC
- Quantity:
- Payment:
- Shipping:
Inventory:2,984
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Product details
Overview
SBL830 from Diodes Incorporated is an 8.0A, 30V Schottky barrier rectifier in TO-220AC package, designed for low-voltage, high-frequency inverters and polarity protection circuits. It features 0.55V forward voltage at 8A/25°C, 200A non-repetitive surge capability, and 6.9°C/W thermal resistance junction-to-case when mounted on a heatsink.
For engineers reviewing the SBL830 datasheet, SBL830 pinout, SBL830 application, or SBL830 equivalent, key selection considerations include its low VF for efficiency-critical DC-DC outputs, TO-220AC thermal performance in constrained power supplies, and guard ring–enhanced transient robustness in automotive body control modules.
Technical Context
The SBL830 uses a planar Schottky barrier die with integrated guard ring structure to suppress edge breakdown and improve surge immunity. Its low forward voltage stems from optimized metal–semiconductor interface and minimal series resistance.
Thermal design relies on direct case-to-heatsink conduction via the TO-220AC metal tab (Pin 1), with rated 8A average current only sustainable at TC ≤ 95°C. Junction capacitance of 700pF at 4V reverse bias supports moderate switching speeds up to ~100kHz in flyback snubbers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 30 V - Maximum repetitive reverse blocking voltage; defines safe operating limit in polarity protection and freewheeling paths. |
| IF(AV) | 8 A @ TC = 95°C - Continuous output current rating requiring heatsink mounting; derates to zero at 150°C case temperature. |
| VFM | 0.55 V @ IF = 8A, TC = 25°C - Low conduction loss enabling >92% efficiency in 5–12V secondary-side rectification. |
| IFSM | 200 A (8.3ms half-sine) - Withstands inrush surges in motor drive freewheeling and UPS battery charging circuits. |
| RθJC | 6.9 °C/W - Thermal resistance from junction to case; enables 11.6W max power dissipation with 80°C ΔT to heatsink. |
| Cj | 700 pF @ VR = 4V, 1MHz - Limits high-frequency noise coupling and affects EMI filter sizing in SMPS outputs. |
Pinout & Package
Package: TO-220AC - Molded plastic case with insulated backside, UL 94V-0 flammability rating, and metal tab (Pin 1) serving as anode connection and thermal path.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (Tab) | Anode | Electrically active metal tab; must be electrically isolated from chassis unless circuit requires common-anode configuration. |
| Pin 2 | Cathode | Lead-frame cathode terminal; carries full load current and connects to output ground or return path. |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring structure | Suppresses edge leakage and improves dv/dt ruggedness during fast polarity reversal in H-bridge freewheeling. |
| Low VF Schottky die | Reduces conduction loss by ≥40% vs. comparable PN rectifiers, lowering thermal stress in sealed power enclosures. |
| TO-220AC thermal interface | Enables direct bolt-down heatsinking without insulating washers-critical for industrial 24V DC power supplies. |
| RoHS-compliant bright tin finish | Ensures reliable solder wetting per MIL-STD-202 Method 208; eliminates lead-based rework concerns in legacy assembly lines. |
Applications
| DC-DC Secondary Rectification | Automotive Polarity Protection |
|---|---|
Use Scenario: 12V input to 5V/3.3V buck converter in infotainment head unit. IC Role / Device Role / Timing Role: Output synchronous rectifier replacement; conducts during low-side switch off-time. Use Value: 0.55V VF minimizes dropout and heat generation at 6A load, extending thermal margin over ambient. | Use Scenario: Reverse-battery protection on 24V chassis power rail feeding ADAS camera module. IC Role / Device Role / Timing Role: Series anode-connected blocking diode preventing damage during jump-start misconnection. Use Value: 200A IFSM withstands cranking surge; guard ring prevents latch-up during 100V transients. |
| Industrial Inverter Freewheeling | UPS Battery Charging Path |
Use Scenario: Freewheeling path across IGBT in 3kW servo drive output stage. IC Role / Device Role / Timing Role: Clamps inductive kickback during IGBT turn-off; conducts for <1μs per cycle. Use Value: 700pF Cj limits displacement current, reducing gate driver stress and EMI filter burden. | Use Scenario: OR-ing diode between AC/DC charger and 48V LiFePO₄ battery bank in telecom backup system. IC Role / Device Role / Timing Role: Unidirectional current valve isolating battery from charger during fault conditions. Use Value: 8A IO rating supports 10A continuous charge current with 25°C safety margin on heatsink. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay VS-8EWH03FN-M3 | 30V, 8A, VF = 0.52V @ 8A, TO-220AC, but no guard ring; RθJC = 7.0°C/W. | Lacks transient edge protection; less robust in automotive load-dump environments. | Prefer where cost sensitivity outweighs surge margin; verify layout clearance for edge breakdown. |
| ON Semiconductor MUR830G | 30V, 8A, but PN junction (not Schottky); VF = 0.95V @ 8A; higher switching loss and reverse recovery charge. | Higher conduction loss and Qrr cause >3× switching loss in 100kHz+ converters. | Only acceptable if thermal budget allows +1.8W extra dissipation or frequency is <20kHz. |
Compared with VS-8EWH03FN-M3, SBL830 offers superior transient immunity via guard ring; versus MUR830G, it delivers 43% lower conduction loss and zero reverse recovery, making it essential for high-efficiency, high-frequency power stages.
Availability
SBL830 is available at Aetrix Electronics and suitable for industrial DC-DC converters, automotive body control modules, uninterruptible power supplies, and motor drive freewheeling circuits requiring stable component supply and long-term BOM continuity.
Supply support for SBL830 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 manufacturing in China, Taiwan, and the U.S.
The SBL8xx series belongs to Diodes' high-current Schottky rectifier product line, engineered specifically for efficiency-critical 5–48V power conversion in automotive, industrial, and computing applications where low VF and surge resilience are mandatory.
FAQ
Is SBL830 RoHS compliant and lead-free?
Yes, SBL830 features a bright tin terminal finish and meets RoHS Directive 2002/95/EC (as revised in 13.2.2003), including exemptions for glass and high-temperature solder per EU Annex Notes 5 and 7. Compliance is verified per JESD22-A112 test standard.
What is the maximum allowable case temperature for continuous 8A operation?
The SBL830 is rated for 8A average forward current only when the case temperature (TC) is held at or below 95°C, as defined in the derating curve (Figure 1). Exceeding this temperature reduces current capacity linearly to zero at 150°C.
Can SBL830 be used in surface-mount designs?
No - SBL830 is exclusively packaged in through-hole TO-220AC with a metal tab intended for bolt-down heatsinking. It has no surface-mount variant; substituting with SMD equivalents like SMA or PowerDI5 requires redesigning thermal and mechanical interfaces.
Why is SBL830 marked "NOT RECOMMENDED FOR NEW DESIGN"?
This designation reflects Diodes Incorporated's internal roadmap guidance: newer alternatives (e.g., SBRA830 or APx830 series) offer improved VF, lower RθJC, or enhanced surge ratings. However, SBL830 remains fully qualified, in active production, and supported for legacy program continuity and repair.
SBL830 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-220-2
- Packaging:
- Tube
- Product Status:
- Obsolete
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 30 V
- Current - Average Rectified (Io):
- 8A
- Voltage - Forward (Vf) (Max) @ If:
- 550 mV @ 8 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 500 µA @ 30 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-220AC
- Operating Temperature - Junction:
- -65°C ~ 150°C
SBL830 FAQ
1.How can I place an order for SBL830 through Aetrix?
Please submit a Request for Quotation (RFQ) for SBL830 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 SBL830 reliable?
The price and inventory of SBL830 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SBL830 is usually 5 days.
3.What payment methods are accepted for SBL830?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SBL830 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SBL830?
SBL830 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SBL830 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 SBL830?
For technical support, including SBL830 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SBL830 requirements.
6.How does Aetrix verify that SBL830 is sourced from the original manufacturer or authorized distributors?
All SBL830 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 SBL830 meets industry standards.
7.What is the process for return or replacement of SBL830?
All SBL830 units undergo pre-shipment inspection (PSI). If there is an issue with SBL830, 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 SBL830 part is unused and in its original packaging.
Return procedure for SBL830:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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