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Diodes Incorporated RS1MEWFQ-7
- Part No.:
- RS1MEWFQ-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- SOD-123F
- Datasheet:
-
RS1MEWFQ-7.pdf
- Description:
- Rapid GPP Rectifier SOD123F T&R
- Quantity:
- Payment:
- Shipping:
Inventory:4,838
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Product details
Overview
RS1MEWFQ-7 from Diodes Incorporated is a 1.0A, 1000V fast recovery surface-mount rectifier in SOD123F package, featuring 240 ns typical reverse recovery time, 1.3 V max forward voltage at 1 A, and 5 µA max reverse leakage at 1000 V. It delivers high surge capability (30 A peak), low-profile packaging, and AEC-Q101 qualification for automotive power conversion.
For engineers reviewing the RS1MEWFQ-7 datasheet, RS1MEWFQ-7 pinout, RS1MEWFQ-7 application, or RS1MEWFQ-7 equivalent, key selection criteria include reverse voltage rating, thermal resistance (RθJA = 100 °C/W), fast recovery performance, automotive qualification status, and SOD123F footprint compatibility with space-constrained DC-DC and AC-DC designs.
Technical Context
This device operates as a unidirectional silicon PN junction rectifier optimized for high-efficiency switching applications. Its fast recovery time (240–500 ns) minimizes switching losses during turn-off, while the 1000 V VRRM rating supports high-voltage input stages in offline SMPS and industrial adapters.
The SOD123F package enables compact board layout with low thermal resistance to ambient (100 °C/W on standard FR-4), and its glass-passivated die construction ensures stable performance under thermal cycling and humidity exposure-critical for automotive under-hood and industrial environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 1000 V - Withstands repetitive reverse voltages up to 1000 V without breakdown, enabling use in 800 V DC bus and universal-input AC-DC front ends. |
| IO (at TT = +88°C) | 1.0 A - Continuous average forward current rating at elevated case temperature, defining usable output capacity in thermally constrained layouts. |
| tRR (typ/max) | 240 / 500 ns - Fast reverse recovery reduces switching loss and EMI in high-frequency converters operating above 100 kHz. |
| VF (max @ 1 A, 25°C) | 1.3 V - Forward voltage drop determines conduction loss and self-heating; impacts efficiency and thermal design margin. |
| IR (max @ 1000 V, 25°C) | 5 µA - Low reverse leakage preserves efficiency in high-impedance hold-up circuits and reduces standby power loss. |
| IFSM (8.3 ms) | 30 A - Non-repetitive surge rating supports inrush current handling during cold-start in power supplies and motor drives. |
| RθJA | 100 °C/W - Junction-to-ambient thermal resistance on standard 25.4×25.4 mm FR-4 board defines required PCB copper area for thermal management. |
Pinout & Package
Package: SOD123F - Surface-mount, low-profile plastic package (3.5 mm × 1.8 mm × 1.1 mm), cathode-banded polarity, matte tin-plated copper leadframe, RoHS-compliant and halogen-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side of AC source or switch node; must handle full load current and surge transients. |
| Cathode | Forward current exit point | Connected to output rail or filter capacitor; polarity marking (band) ensures correct orientation during automated placement. |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated die | Enhances long-term reliability under humidity and thermal stress, meeting AEC-Q101 requirements for automotive under-hood use. |
| Fast recovery time (240 ns typ) | Reduces switching loss and diode-induced ringing in high-frequency flyback and boost converters. |
| AEC-Q101 qualified | Validated for automotive applications including infotainment power rails and body control modules requiring PPAP documentation. |
| SOD123F footprint | Enables PCB area reduction vs. SMA/SMB packages-ideal for space-limited USB-C PD adapters and IoT power modules. |
| Lead-free & "Green" construction | Complies with RoHS 3 and halogen-free standards (<900 ppm Br/Cl, <1000 ppm Sb), supporting environmental compliance programs. |
Applications
| AC-DC Adapters | Automotive Body Control Modules |
|---|---|
Use Scenario: Universal-input 12 V/24 V wall adapters for industrial sensors and PoE-powered devices. IC Role / Device Role / Timing Role: Output rectifier in discontinuous conduction mode (DCM) flyback converter. Use Value: 1000 V VRRM accommodates reflected voltage spikes; 240 ns tRR maintains >90% efficiency at 200 kHz switching frequency. | Use Scenario: Power supply for door module ECUs managing window lift, mirror fold, and interior lighting. IC Role / Device Role / Timing Role: Input rectifier in buck-derived auxiliary supply fed from vehicle battery (12 V nominal, up to 16 V). Use Value: AEC-Q101 qualification ensures operation across -40°C to +125°C ambient; 30 A IFSM handles jump-start surges. |
| Industrial DC-DC Converters | USB-C Power Delivery Systems |
Use Scenario: Isolated 48 V to 5 V/3.3 V converter for factory automation I/O modules. IC Role / Device Role / Timing Role: Secondary-side synchronous rectifier replacement in quasi-resonant topology. Use Value: Low IR (5 µA max) prevents capacitor discharge during standby; SOD123F footprint fits tight 2-layer PCB layouts. | Use Scenario: Input stage rectification in multi-port USB-C PD chargers supporting 100 W output. IC Role / Device Role / Timing Role: Bridge rectifier leg in active clamp forward or LLC resonant converter. Use Value: 1.3 V VF max limits conduction loss at 1 A continuous; RθJA = 100 °C/W enables passive cooling in sealed enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fast recovery rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1R06S | Same 1 A / 600 V rating but lower VRRM; TO-277 package (larger footprint, higher RθJA). | Not AEC-Q101 qualified; unsuitable for automotive under-hood deployment. | Prefer RS1MEWFQ-7 where 1000 V rating or automotive qualification is required. |
| ON Semi MUR1100E | 1 A / 1000 V, but SMC package (5.3 mm × 5.3 mm); tRR = 50 ns (faster), VF = 1.7 V (higher). | Higher VF increases conduction loss; larger package limits density in portable designs. | Choose RS1MEWFQ-7 when board space and thermal resistance (100 °C/W) are critical over ultra-fast recovery. |
Compared with STTH1R06S and MUR1100E, RS1MEWFQ-7 uniquely balances 1000 V rating, AEC-Q101 compliance, SOD123F miniaturization, and 240 ns recovery-making it optimal for automotive and space-constrained industrial SMPS where reliability and footprint co-constrain selection.
Availability
RS1MEWFQ-7 is available at Aetrix Electronics and suitable for AC-DC adapters, automotive body control modules, industrial DC-DC converters, and USB-C power delivery systems requiring stable component supply, automotive-grade traceability, and consistent SOD123F packaging.
Supply support for RS1MEWFQ-7 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, specializing in high-reliability power management, signal integrity, and protection solutions for industrial, automotive, and consumer markets.
The RS1MEWFQ-7 belongs to Diodes' automotive-qualified fast recovery rectifier product line, engineered specifically for high-voltage, high-efficiency rectification in space- and thermal-constrained automotive and industrial power supplies.
FAQ
What is the maximum junction temperature for RS1MEWFQ-7?
The RS1MEWFQ-7 has an operating junction temperature range of –55°C to +150°C. This allows reliable operation in under-hood automotive environments and high-temperature industrial enclosures. Thermal derating begins above +88°C case temperature, where the average forward current rating drops below 1.0 A per the datasheet's IO vs. TT curve.
Is RS1MEWFQ-7 compatible with lead-free reflow soldering processes?
Yes, RS1MEWFQ-7 uses matte tin-plated terminals and is rated for standard lead-free reflow profiles (J-STD-020 Class 1). Its moisture sensitivity level is MSL 1, meaning it can be stored indefinitely at ≤30°C/85% RH without baking prior to assembly-simplifying manufacturing logistics for high-volume SMT lines.
Does RS1MEWFQ-7 have a specified reverse recovery charge (Qrr)?
No, the official Diodes datasheet DS44677 Rev. 2 does not specify Qrr. Only tRR (240–500 ns) is provided under defined test conditions (IF = 0.5 A, IR = 1.0 A, IRR = 0.25 A). Designers requiring Qrr for loss modeling should consult Diodes' application notes or request characterization data directly from technical support.
Can RS1MEWFQ-7 replace a standard 1N4007 in existing designs?
RS1MEWFQ-7 is not a direct replacement for 1N4007 due to differences in package (SOD123F vs. DO-41), mounting method (SMT vs. through-hole), and electrical profile (fast recovery vs. general-purpose). While both share 1000 V VRRM, RS1MEWFQ-7 offers faster tRR and lower IR but requires PCB redesign and reflow process validation.
RS1MEWFQ-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SOD-123F
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 1000 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 @ 1000 V
- Capacitance @ Vr, F:
- 7pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123F
- Operating Temperature - Junction:
- -55°C ~ 150°C
RS1MEWFQ-7 FAQ
1.How can I place an order for RS1MEWFQ-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for RS1MEWFQ-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 RS1MEWFQ-7 reliable?
The price and inventory of RS1MEWFQ-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RS1MEWFQ-7 is usually 5 days.
3.What payment methods are accepted for RS1MEWFQ-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RS1MEWFQ-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RS1MEWFQ-7?
RS1MEWFQ-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RS1MEWFQ-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 RS1MEWFQ-7?
For technical support, including RS1MEWFQ-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RS1MEWFQ-7 requirements.
6.How does Aetrix verify that RS1MEWFQ-7 is sourced from the original manufacturer or authorized distributors?
All RS1MEWFQ-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 RS1MEWFQ-7 meets industry standards.
7.What is the process for return or replacement of RS1MEWFQ-7?
All RS1MEWFQ-7 units undergo pre-shipment inspection (PSI). If there is an issue with RS1MEWFQ-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 RS1MEWFQ-7 part is unused and in its original packaging.
Return procedure for RS1MEWFQ-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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