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Diodes Incorporated SD830-T
- Part No.:
- SD830-T
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- DO-201AD, Axial
- Datasheet:
-
SD830-T.pdf
- Description:
- DIODE SCHOTTKY 30V 8A DO201AD
- Quantity:
- Payment:
- Shipping:
Inventory:6,507
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Product details
Overview
SD830-T from Diodes Incorporated is a 30 V, 8.0 A Schottky barrier rectifier in DO-201AD package with 0.7 V max forward voltage at 8 A, 100 µA max reverse leakage at 25°C, and 175 A non-repetitive surge capability-designed for high-efficiency AC/DC front-end rectification in industrial power supplies.
For engineers reviewing the SD830-T datasheet, SD830-T pinout, SD830-T application, or SD830-T equivalent, key selection criteria include its low VF for reduced conduction loss, guard ring–enhanced transient robustness, DO-201AD thermal performance (RθJL = 30°C/W), and RoHS-compliant bright tin terminals suitable for lead-free reflow.
Technical Context
This discrete Schottky diode operates as a unidirectional power rectifier with metal–semiconductor junction architecture enabling fast switching (no minority-carrier storage) and zero reverse recovery time. Its guard ring structure provides edge termination to suppress avalanche breakdown under transient overvoltage conditions.
Rated for 8 A average forward current with derating above +25°C (see Figure 1), it supports single-phase half-wave 60 Hz operation into resistive/inductive loads and requires 20% current reduction for capacitive-input filter applications due to peak current stress.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 30 V - Maximum repetitive reverse voltage before breakdown; sets safe operating margin for 24 V DC bus or 17 V RMS AC inputs. |
| IO(AVG) | 8 A - Continuous forward current rating at TA = +25°C; requires heatsinking or airflow above ~60°C ambient. |
| VF(max) | 0.7 V @ 8 A - Limits conduction loss to ≤5.6 W at full load; enables >92% efficiency in 12 V output SMPS rectifiers. |
| IR(max) | 100 µA @ 30 V, 25°C - Low leakage preserves hold-up time in standby; rises to 50 mA at 100°C, requiring thermal-aware design. |
| IFSM | 175 A @ 8.3 ms - Withstands cold-start inrush into bulk capacitors up to ~2200 µF (calculated per I²t = 21.4 A²s). |
| CJ(typ) | 550 pF @ 4 V - Junction capacitance impacts EMI filtering design and snubber sizing in high-frequency flyback converters. |
Pinout & Package
DO-201AD axial-leaded plastic package with cathode band marking; 1.1 g mass; UL 94V-0 flammability rating; moisture sensitivity level 1; bright tin-plated leads solderable per MIL-STD-202 Method 208.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to AC input or transformer secondary; must withstand full surge current and thermal cycling. |
| Cathode | Forward current exit / DC output node | Marked by band; ties to bulk capacitor positive; layout must minimize loop inductance for EMI control. |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring structure | Edge termination that raises transient voltage standoff by ≥30% vs. non-guarded Schottkys, improving surge immunity in motor drive inputs. |
| Low RθJL = 30°C/W | Enables direct PCB copper pour heatsinking without clip or stud mount-reducing BOM count in cost-sensitive 100–500 W adapters. |
| RoHS-compliant bright tin finish | Compatible with Pb-free reflow profiles (peak 260°C); eliminates post-solder cleaning for automotive-grade assembly lines. |
| High surge capacity (175 A) | Supports EN 61000-4-5 Level 3 (2 kV line-earth) immunity without external MOV, simplifying input stage protection. |
Applications
| Industrial AC/DC Power Supply | LED Driver Secondary Rectification |
|---|---|
Use Scenario: 24 V, 5 A output flyback converter powering PLC I/O modules in factory automation cabinets. IC Role / Device Role / Timing Role: Primary-side synchronous rectifier replacement; conducts during transformer reset phase to recover energy. Use Value: 0.7 V VF reduces rectifier loss by 35% vs. 1N5408, lowering case temperature by 18°C at full load and extending electrolytic capacitor life. | Use Scenario: Constant-current LED driver for high-bay warehouse lighting with 36 V string voltage and 700 mA output. IC Role / Device Role / Timing Role: Output rectifier in quasi-resonant buck-boost topology; handles discontinuous conduction mode transitions. Use Value: 550 pF CJ minimizes switching node ringing, reducing conducted EMI by 8 dBµV in 150 kHz–30 MHz CISPR-15 scan. |
| Solar Microinverter DC Link | Automotive Auxiliary Power Module |
Use Scenario: DC–DC boost stage in 300 W microinverter converting PV panel output (25–50 V) to 400 V DC link. IC Role / Device Role / Timing Role: Freewheeling diode in synchronous boost switch node; clamps inductive kick during MOSFET off-time. Use Value: Guard ring prevents edge-triggered avalanche during lightning-induced transients on rooftop PV strings, eliminating field failures. | Use Scenario: 12 V to 5 V/3.3 V dual-rail power module for infotainment head unit in passenger vehicles. IC Role / Device Role / Timing Role: Input rectifier for isolated flyback supplying isolated CAN transceiver rails. Use Value: 100 µA IR at 25°C ensures <10 µW standby loss-critical for meeting ISO 16750-2 quiescent current requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SS830P (ON Semiconductor) | Same VRRM (30 V), IO (8 A), but VF = 0.75 V max @ 8 A; RθJL = 35°C/W; no guard ring. | Lacks transient edge protection; higher conduction loss increases thermal stress in sealed enclosures. | Prefer SD830-T where surge immunity or thermal margin is critical; SS830P acceptable in open-frame, ventilated designs. |
| SB830 (Vishay) | Identical VRRM, IO, VF spec; same DO-201AD package; CJ = 600 pF; IR = 120 µA @ 25°C. | Slightly higher leakage limits use in battery-backed standby circuits; identical surge rating. | Direct form-fit-function alternative; verify leakage impact in >10-year hold-up time applications. |
Compared with SS830P and SB830, SD830-T offers superior transient robustness via guard ring and lower thermal resistance-making it optimal for enclosed, high-reliability industrial power stages where long-term stability outweighs minor cost differences.
Availability
SD830-T is available at Aetrix Electronics and suitable for industrial AC/DC power supplies, LED driver secondary rectification, solar microinverter DC links, and automotive auxiliary power modules requiring stable component supply across multi-year production cycles.
Supply support for SD830-T 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 SD830-T belongs to Diodes' high-current Schottky rectifier product line, engineered specifically for efficiency-critical 5–500 W offline power conversion where low VF, high surge tolerance, and transient-hardened construction are mandatory.
FAQ
What is the maximum allowable junction temperature for continuous operation?
The SD830-T has an operating junction temperature range of –65°C to +150°C. For reliable long-term operation, sustained TJ should not exceed +125°C under worst-case ambient and power dissipation conditions-verified using RθJL = 30°C/W and measured lead temperature per Figure 1 derating curve.
Can SD830-T be used in place of a standard PN junction rectifier like 1N5408?
Yes, but only in applications where reverse voltage does not exceed 30 V and where zero reverse recovery is beneficial. Unlike 1N5408 (1000 V, 3 A, slow recovery), SD830-T offers lower VF and faster switching but lower VRRM and higher leakage-requiring circuit-level validation of voltage margin and thermal design.
Is the DO-201AD package compatible with automated through-hole insertion equipment?
Yes-the DO-201AD's 9.5 mm lead length, 4.8–5.3 mm lead spacing (D dimension), and axial orientation meet IPC-7351B standards for wave soldering and auto-insertion. Lead coplanarity and tin finish ensure consistent wetting and minimal bridging in high-volume manufacturing.
Does SD830-T require derating when mounted horizontally versus vertically on PCB?
No-datasheet specifies "mounting position: any." Thermal resistance RθJL = 30°C/W is measured with vertical mounting (9.5 mm lead length), but horizontal mounting shows <5% difference in thermal performance due to symmetric plastic body and leadframe geometry; no additional derating is specified or required.
SD830-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- DO-201AD, Axial
- Packaging:
- Tape & Reel (TR)
- 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:
- 1 mA @ 30 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-201AD
- Operating Temperature - Junction:
- -65°C ~ 150°C
SD830-T FAQ
1.How can I place an order for SD830-T through Aetrix?
Please submit a Request for Quotation (RFQ) for SD830-T 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 SD830-T reliable?
The price and inventory of SD830-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SD830-T is usually 5 days.
3.What payment methods are accepted for SD830-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SD830-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SD830-T?
SD830-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SD830-T 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 SD830-T?
For technical support, including SD830-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SD830-T requirements.
6.How does Aetrix verify that SD830-T is sourced from the original manufacturer or authorized distributors?
All SD830-T 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 SD830-T meets industry standards.
7.What is the process for return or replacement of SD830-T?
All SD830-T units undergo pre-shipment inspection (PSI). If there is an issue with SD830-T, 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 SD830-T part is unused and in its original packaging.
Return procedure for SD830-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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