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Diodes Incorporated B0530W-7
- Part No.:
- B0530W-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- SOD-123
- Datasheet:
-
B0530W-7.pdf
- Description:
- DIODE SCHOTTKY 30V 500MA SOD123
- Quantity:
- Payment:
- Shipping:
Inventory:3,739
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Product details
Overview
B0530W from Diodes Incorporated is a 0.5A, 30V surface-mount Schottky barrier rectifier in SOD-123 package, featuring 0.375V forward voltage at 0.1A and 20μA reverse leakage at 15V, used for low-loss DC power conversion in compact consumer and industrial power supplies.
For engineers reviewing the B0530W datasheet, B0530W pinout, B0530W application, or B0530W equivalent, key selection criteria include its low VF, guard-ring transient protection, 5.5A surge rating, and AEC-Q200 readiness for automotive-grade reliability assessment.
Technical Context
This Schottky diode operates as a unidirectional power rectifier with metal-semiconductor junction architecture, enabling fast switching (no minority-carrier storage) and low conduction loss. Its guard-ring die construction provides inherent transient voltage suppression without external components.
Rated for continuous 0.5A average output current with thermal resistance of 400°C/W on FR-4 board, it supports operation from –65°C to +125°C ambient and withstands 30V peak repetitive reverse voltage - suitable for 24V rail clamping and 5V/3.3V DC-DC output stage freewheeling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 30 V - Maximum reverse blocking capability for 24V system-level transient suppression |
| IO | 0.5 A - Continuous DC output current handling in space-constrained buck converter outputs |
| VFM | 0.375 V @ 0.1A - Minimizes conduction loss in low-voltage, high-efficiency power paths |
| IFSM | 5.5 A - Withstands inrush and short-circuit surge events in 8.3ms half-sine waveform |
| RθJA | 400 °C/W - Thermal performance on standard 1″×1″ 2oz FR-4 PCB defines heatsinking requirements |
| CT | 170 pF @ 1MHz, 0V - Low junction capacitance preserves high-frequency switching integrity |
| IRM | 20 μA @ 15V - Enables low standby power in always-on battery-backed circuits |
Pinout & Package
Package: SOD-123 - Surface-mount plastic case (UL 94V-0), 0.01g weight, cathode-banded polarity, matte tin-plated terminals solderable per MIL-STD-202.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry node | Connected to input/source side of rectification path; requires trace width sizing for 0.5A continuous |
| Cathode | Current exit node | Marked with band; ties to output/load side; serves as reference for reverse voltage stress |
Key Features
| Feature | Design Value |
|---|---|
| Low forward voltage drop | 0.375 V at 0.1A enables >95% efficiency in 3.3V synchronous rectifier replacement |
| Guard ring die construction | Integrated transient protection eliminates need for discrete TVS in 12V/24V automotive load-dump scenarios |
| High conductance | Low dynamic resistance improves regulation under variable load in portable USB-C PD adapters |
| Lead-free & RoHS 3 compliant | Meets EU Directive 2015/863 with <900ppm Br/Cl and <1000ppm Sb - qualified for green manufacturing programs |
| AEC-Q200 readiness | Manufactured in IATF 16949 facility; PPAP-capable for automotive subsystem qualification |
Applications
| USB Power Delivery Adapter | Automotive Body Control Module |
|---|---|
Use Scenario: Secondary-side rectification in 20–65W GaN-based USB-C PD adapters. IC Role / Device Role / Timing Role: Schottky rectifier replacing synchronous MOSFET driver complexity in cost-sensitive designs. Use Value: 0.375V VF reduces conduction loss by ~40% vs. standard PN diode, improving thermal margin at 5V/3A output. | Use Scenario: Reverse-polarity and load-dump protection in 12V BCM power inputs. IC Role / Device Role / Timing Role: Clamp diode across relay coils and LIN bus transceivers. Use Value: Guard-ring structure absorbs 5.5A surge without derating, eliminating need for external TVS in Class 3 automotive modules. |
| Industrial IoT Sensor Node | White Goods Appliance Control Board |
Use Scenario: Input rectification for ultra-low-power 3.3V buck converters in battery-backed sensors. IC Role / Device Role / Timing Role: AC-to-DC front-end in energy-harvesting bridge rectifiers. Use Value: 20μA leakage at 15V extends shelf life of coin-cell-powered nodes beyond 10 years. | Use Scenario: Freewheeling path for 24V solenoid drivers in washing machine control boards. IC Role / Device Role / Timing Role: Inductive kickback clamp during PWM-driven valve actuation. Use Value: 30V VRRM safely handles 24V system transients up to ISO 7637-2 Pulse 5a, reducing failure rate in field units. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SBM0530T1G (ON Semiconductor) | Same 30V/0.5A rating but 0.45V VF @ 0.5A; higher RθJA (450°C/W) | Marginally lower efficiency in thermally constrained layouts | Select when legacy ON design reuse is prioritized over minimal VF |
| SS3P3L (Vishay) | 30V/0.5A, 0.42V VF @ 0.5A, SOD-123, but no guard ring; 100μA IRM @ 30V | Lacks integrated transient protection; requires external TVS for automotive use | Prefer for non-automotive cost-sensitive consumer power where surge immunity is secondary |
Compared with SBM0530T1G and SS3P3L, B0530W delivers the lowest forward voltage and built-in guard-ring protection - critical for automotive and high-reliability industrial rectification where thermal headroom and transient robustness are jointly constrained.
Availability
B0530W is available at Aetrix Electronics and suitable for USB Power Delivery adapters, automotive body control modules, and industrial IoT sensor nodes requiring stable component supply and long-term production continuity.
Supply support for B0530W 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.
B0530W belongs to Diodes' Schottky Rectifier product line, engineered for high-efficiency, low-voltage DC power conversion in space- and thermal-constrained applications including automotive, industrial, and consumer electronics.
FAQ
What is the maximum junction temperature for B0530W during continuous operation?
The B0530W has an operating junction temperature range of –65°C to +125°C. Under continuous 0.5A load on a standard 1″×1″ 2oz FR-4 board, junction temperature rise is calculated as 400°C/W × (0.5A)² × RDS(on) equivalent - actual TJ remains below 125°C if ambient stays ≤85°C and layout follows recommended pad dimensions.
Is B0530W qualified for automotive applications per AEC-Q200?
B0530W is manufactured in IATF 16949-certified facilities and supports PPAP documentation. While not pre-qualified to AEC-Q200 in this revision, Diodes states it meets automotive change control requirements - full qualification requires customer-initiated testing per AEC-Q200 Rev D, including temperature cycling and humidity bias HAST.
Can B0530W replace a standard PN junction rectifier in a 5V SMPS output stage?
Yes - B0530W's 0.375V forward voltage at 0.1A reduces conduction loss by ~65% versus a typical 1N4001 (0.95V). Its 170pF capacitance does not degrade switching node ringing in 500kHz–1MHz converters, and its 30V VRRM safely covers 5V output with margin for overshoot.
Does B0530W require derating when used with capacitive loads?
Yes - the datasheet specifies a 20% current derating for capacitive loads due to high inrush current. At 0.5A rated IO, maximum allowable average current drops to 0.4A when charging bulk capacitance directly, requiring verification of thermal performance via measured junction temperature or IR thermography.
B0530W-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SOD-123
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 30 V
- Current - Average Rectified (Io):
- 500mA
- Voltage - Forward (Vf) (Max) @ If:
- 430 mV @ 500 mA
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 130 µA @ 30 V
- Capacitance @ Vr, F:
- 170pF @ 0V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123
- Operating Temperature - Junction:
- -65°C ~ 125°C
B0530W-7 FAQ
1.How can I place an order for B0530W-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for B0530W-7 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 B0530W-7 reliable?
The price and inventory of B0530W-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for B0530W-7 is usually 5 days.
3.What payment methods are accepted for B0530W-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for B0530W-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for B0530W-7?
B0530W-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your B0530W-7 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 B0530W-7?
For technical support, including B0530W-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your B0530W-7 requirements.
6.How does Aetrix verify that B0530W-7 is sourced from the original manufacturer or authorized distributors?
All B0530W-7 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 B0530W-7 meets industry standards.
7.What is the process for return or replacement of B0530W-7?
All B0530W-7 units undergo pre-shipment inspection (PSI). If there is an issue with B0530W-7, 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 B0530W-7 part is unused and in its original packaging.
Return procedure for B0530W-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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