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Diodes Incorporated RS1MDFQ-13
- Part No.:
- RS1MDFQ-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- 2-SMD, Flat Leads
- Datasheet:
-
RS1MDFQ-13.pdf
- Description:
- DIODE GEN PURP 1KV 1A DFLAT
- Quantity:
- Payment:
- Shipping:
Inventory:33,081
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Product details
Overview
RS1MDFQ-13 from Diodes Incorporated is a 1.0A, 1000V fast recovery surface-mount rectifier in the D-FLAT package, featuring 140ns typical reverse recovery time, 1.3V max forward voltage at 1A/25°C, and 5µA max leakage at 1000V/25°C. It is AEC-Q101 qualified and used for reverse polarity protection and high-frequency switching in automotive power supplies.
For engineers reviewing the RS1MDFQ-13 datasheet, RS1MDFQ-13 pinout, RS1MDFQ-13 application, or RS1MDFQ-13 equivalent, key selection criteria include peak repetitive reverse voltage (1000V), fast recovery performance (140–500ns), thermal resistance (31°C/W junction-to-terminal), low-profile mechanical fit (<1.1mm height), and automotive qualification status.
Technical Context
The RS1MDFQ-13 employs a glass-passivated silicon die optimized for fast recovery (tRR = 140ns typ.) and high surge tolerance (30A IFSM, 8.3ms half-sine). Its D-FLAT package enables low-inductance, low-profile mounting on FR-4 PCBs with defined thermal pad layouts.
Electrical behavior is characterized across temperature: VF rises to 1.3V max at 125°C, IR increases to 5µA max at 125°C under 1000V bias, and derating curves specify 1.0A average current only up to +100°C ambient - requiring thermal design attention above that point.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 1000 V - blocks DC or peak AC voltages up to 1000V without breakdown |
| IO (AV) | 1.0 A @ TA = +100°C - maximum continuous forward current under specified thermal conditions |
| VF Max | 1.3 V @ IF = 1A, TJ = +25°C - limits conduction loss and self-heating during steady-state operation |
| tRR | 140 ns typ., 500 ns max - enables efficient high-frequency switching (>100kHz) with reduced switching loss |
| IR Max | 5 µA @ VR = 1000V, TJ = +25°C - ensures minimal leakage in high-impedance blocking applications |
| RθJT | 31 °C/W - defines thermal path efficiency from junction to PCB pad, critical for power dissipation management |
| IFSM | 30 A @ 8.3ms half-sine - withstands inrush or fault currents without permanent damage |
Pinout & Package
RS1MDFQ-13 uses the D-FLAT surface-mount package (case outline per Diodes Inc. document DS38756), measuring 4.65 × 2.80 mm with 0.90–1.10 mm height and cathode band marking. Terminals are matte tin-annealed over copper leadframe, solderable per MIL-STD-202, Method 208.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry | Connected to input/source side of rectification path; requires adequate copper area for thermal relief |
| Cathode | Forward current exit / polarity reference | Marked by visible band; connects to load/ground side; determines direction of unidirectional conduction |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated die | Enhances long-term reliability and moisture resistance vs. epoxy-passivated alternatives |
| AEC-Q101 qualification | Validated for automotive-grade temperature cycling, humidity, and mechanical stress requirements |
| D-FLAT low-profile package | Height <1.1 mm - enables ultra-thin power designs and reduces board-level mechanical stress |
| Surge rating: 30A IFSM | Supports robust start-up and fault handling in 12V/24V automotive systems |
| Halogen & antimony free | Meets "Green" compliance: Br+Cl <1500 ppm, Sb <1000 ppm - supports eco-design mandates |
Applications
| Automotive Power Supply Protection | DC-DC Converter Output Rectification |
|---|---|
Use Scenario: Reverse battery connection protection in vehicle infotainment head units and body control modules. IC Role / Device Role / Timing Role: Unidirectional blocking diode placed between battery input and downstream regulator ICs. Use Value: Prevents destructive reverse-current flow during jump-start or wiring errors while maintaining low forward drop (≤1.3V) to minimize voltage loss. | Use Scenario: Secondary-side rectification in isolated flyback or forward converters operating at 100–500kHz. IC Role / Device Role / Timing Role: Fast-recovery rectifier replacing Schottky where higher VRRM is required. Use Value: Enables reliable operation at 1000V blocking with tRR ≤500ns - reducing switching loss versus standard recovery diodes. |
| Industrial Sensor Power Conditioning | LED Driver Input Stage |
Use Scenario: Input rectification and polarity protection for 24V industrial sensors exposed to field wiring reversals. IC Role / Device Role / Timing Role: Primary AC/DC interface component in compact sensor modules with limited PCB real estate. Use Value: D-FLAT footprint (4.65 × 2.80 mm) and <1.1 mm height allow integration into space-constrained enclosures without compromising 1000V isolation margin. | Use Scenario: Bridge rectifier replacement in constant-current LED drivers for street lighting and signage. IC Role / Device Role / Timing Role: Single-phase rectifier in capacitor-input filter stage preceding buck controller. Use Value: 30A surge rating handles cold-start inrush into large bulk capacitors; 5µA leakage minimizes standby power loss. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fast recovery rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SB1100-TB | 100V VRRM, 1A, Schottky; VF ≈ 0.85V @ 1A, no recovery time | Limited to ≤100V systems; unsuitable for 400V+ PFC or automotive battery inputs | Select when low VF and zero recovery loss are prioritized over high-voltage blocking |
| ES1J-E3/54 | 600V VRRM, 1A, fast recovery; tRR = 35ns typ., RθJT = 40°C/W | Lower voltage rating; faster recovery but higher thermal resistance than RS1MDFQ-13 | Select for 600V-rated SMPS where speed outweighs voltage margin and thermal performance |
Compared with SB1100-TB and ES1J-E3/54, RS1MDFQ-13 uniquely balances 1000V blocking, automotive qualification, and D-FLAT low-profile packaging - making it optimal for space-limited, high-reliability 12V/24V/48V automotive and industrial rectification where voltage margin and surge robustness are non-negotiable.
Availability
RS1MDFQ-13 is available at Aetrix Electronics and suitable for automotive power supply protection, DC-DC converter output rectification, and industrial sensor power conditioning requiring stable component supply and AEC-Q101-compliant sourcing.
Supply support for RS1MDFQ-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, specializing in high-reliability components for automotive, industrial, and consumer markets.
The RS1MDFQ-13 belongs to Diodes' AEC-Q101-qualified fast recovery rectifier product line, engineered specifically for automotive power management and high-efficiency switching applications demanding robust surge capability and low-profile packaging.
FAQ
What is the maximum operating temperature for RS1MDFQ-13?
The RS1MDFQ-13 has an operating junction temperature range of –55°C to +150°C. However, its rated average forward current (IO) drops to 1.0A only at TA = +100°C - above this ambient, derating is required per Figure 1 in DS38756. Thermal design must ensure RθJA = 83°C/W does not cause TJ to exceed +150°C under worst-case load and airflow conditions.
Is RS1MDFQ-13 suitable for use in a bridge rectifier configuration?
Yes - RS1MDFQ-13 can be used in single-phase full-wave bridge configurations, provided each device sees ≤1000V peak reverse voltage and average current remains within derated limits. Its 30A non-repetitive surge rating supports brief inrush events common in bridge applications, and its D-FLAT package allows dense layout. Ensure proper thermal coupling to PCB copper for all four devices.
Does RS1MDFQ-13 have a built-in ESD protection structure?
No - RS1MDFQ-13 is a passive rectifier diode without integrated ESD protection circuitry. Its glass-passivated die provides baseline moisture and contamination resistance, but external TVS or RC networks are required for ESD-sensitive system interfaces. The device's 1000V VRRM does not imply ESD withstand capability - per JEDEC JS-001, it is not characterized for HBM or CDM ESD levels.
Can RS1MDFQ-13 replace a standard recovery rectifier like 1N4007 in high-frequency designs?
Yes - RS1MDFQ-13 is explicitly designed to replace slower rectifiers such as 1N4007 in high-frequency applications (e.g., >20kHz). With tRR = 140ns (vs. ~30µs for 1N4007), it reduces switching losses and prevents reverse recovery-related ringing. However, its 1.3V VF is higher than 1N4007's ~1.1V, so conduction loss must be evaluated in context of duty cycle and thermal constraints.
RS1MDFQ-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 2-SMD, Flat Leads
- 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:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 500 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 1000 V
- Capacitance @ Vr, F:
- 5pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- D-Flat
- Operating Temperature - Junction:
- -55°C ~ 150°C
RS1MDFQ-13 FAQ
1.How can I place an order for RS1MDFQ-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for RS1MDFQ-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 RS1MDFQ-13 reliable?
The price and inventory of RS1MDFQ-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RS1MDFQ-13 is usually 5 days.
3.What payment methods are accepted for RS1MDFQ-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RS1MDFQ-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RS1MDFQ-13?
RS1MDFQ-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RS1MDFQ-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 RS1MDFQ-13?
For technical support, including RS1MDFQ-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RS1MDFQ-13 requirements.
6.How does Aetrix verify that RS1MDFQ-13 is sourced from the original manufacturer or authorized distributors?
All RS1MDFQ-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 RS1MDFQ-13 meets industry standards.
7.What is the process for return or replacement of RS1MDFQ-13?
All RS1MDFQ-13 units undergo pre-shipment inspection (PSI). If there is an issue with RS1MDFQ-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 RS1MDFQ-13 part is unused and in its original packaging.
Return procedure for RS1MDFQ-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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