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Diodes Incorporated RS402LDI-F
- Part No.:
- RS402LDI-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Bridge Rectifiers
- Package:
- 4-SIP, RS-4L
- Datasheet:
-
RS402LDI-F.pdf
- Description:
- BRIDGE RECT 1PHASE 100V 4A RS-4L
- Quantity:
- Payment:
- Shipping:
Inventory:2,321
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Product details
Overview
RS402LDI-F from Diodes Incorporated is a 4.0A, 100V PIV single-phase bridge rectifier in RS-4L plastic package, featuring 200A peak surge rating, 1.0V max forward voltage at 3.0A, and UL 94V-0 flammability compliance-used in AC/DC power supplies for industrial control panels.
For engineers reviewing the RS402LDI-F datasheet, RS402LDI-F pinout, RS402LDI-F application, or RS402LDI-F equivalent, key selection criteria include peak reverse voltage (100V), average forward current (4.0A @ TA=50°C), surge robustness (200A, 8.3ms), thermal derating behavior, and UL recognition status (E94661).
Technical Context
This bridge rectifier converts AC input to pulsating DC using four internal diodes in a full-wave configuration. It supports single-phase, 60Hz resistive or inductive loads with no external gate control or regulation circuitry required.
Thermal performance is defined by case temperature derating (Fig. 1), with I(AV) dropping to ~2.7A at TC = 100°C. Reverse leakage remains ≤10.0 µA at 25°C and ≤1.0 mA at 100°C under rated blocking voltage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 100 V - Maximum repetitive peak reverse voltage; defines safe AC input amplitude before breakdown |
| I(AV) | 4.0 A at TA = 50°C - Continuous DC output current capability with heatsink-free operation up to 50°C ambient |
| IFSM | 200 A (8.3 ms half-sine) - Withstands inrush surges typical of transformer-coupled or capacitive-input supplies |
| VF | 1.0 V at IF = 3.0 A - Forward drop determines conduction loss and thermal rise in linear power stages |
| IR | 10.0 µA at 25°C, 1.0 mA at 100°C - Low leakage preserves efficiency in high-impedance hold-up or sensing circuits |
| TJ Range | –55°C to +150°C - Enables deployment in extended-temperature industrial or outdoor power enclosures |
Pinout & Package
Package: RS-4L plastic case, UL 94V-0 rated, approx. 5.6 g weight, dimensions A=18.5–19.5 mm, B=15.4–16.0 mm, D=6.2–6.5 mm, E=4.6–5.6 mm, G=1.5–2.0 mm, H≈1.3 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| ~AC1 | AC Input Terminal 1 | One leg of AC input; connects to transformer secondary or line-side filter |
| ~AC2 | AC Input Terminal 2 | Second leg of AC input; completes full-wave bridge input path |
| +DC | Positive DC Output | Rectified positive rail; feeds bulk capacitor or downstream regulator |
| –DC | Negative DC Output / Common Return | Reference node for DC output; ties to system ground or negative rail |
Key Features
| Feature | Design Value |
|---|---|
| Surge Robustness | 200A non-repetitive peak forward surge (8.3ms); handles cold-start inrush without failure |
| Thermal Stability | Rated for continuous operation up to +150°C junction temperature; supports sealed or high-ambient environments |
| UL Recognition | UL File E94661 confirmed; satisfies safety certification requirements for Class I/II AC/DC equipment |
| Low Leakage | ≤10 µA reverse current at 25°C; minimizes standby power loss in energy-sensitive designs |
Applications
| Industrial AC/DC Power Supply | Motor Control Interface Module |
|---|---|
Use Scenario: Converts 24–120VAC mains or control-voltage AC to unregulated DC for logic and gate drivers. IC Role / Device Role / Timing Role: Primary rectification stage delivering stable DC bus prior to filtering and regulation. Use Value: 4.0A average current and 200A surge rating support intermittent motor startup loads without thermal shutdown. | Use Scenario: Mounted on PCBs driving small AC induction or universal motors in HVAC actuators. IC Role / Device Role / Timing Role: Full-wave bridge providing isolated DC bias for triac/driver IC control circuitry. Use Value: UL 94V-0 housing and –55°C to +150°C operation ensure reliability across wide environmental duty cycles. |
| Programmable Logic Controller (PLC) Power Section | Test & Measurement Equipment AC Input Stage |
Use Scenario: Rectifies auxiliary 24VAC or 48VAC field power for PLC backplane logic rails. IC Role / Device Role / Timing Role: Front-end bridge enabling compact, board-mounted power conversion without external heatsinking. Use Value: 1.0V VF at 3.0A limits conduction loss to <3W, reducing local PCB heating in dense control modules. | Use Scenario: Used in benchtop multimeters and signal generators requiring clean, low-noise DC rails. IC Role / Device Role / Timing Role: First-stage rectifier feeding precision linear regulators and reference circuits. Use Value: ≤10 µA reverse leakage at 25°C prevents measurement drift caused by parasitic current paths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bridge rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| GBU4005 | Same 4.0A/50V rating but higher VRRM (50V vs. 100V); smaller GBU package; not UL recognized | Lower voltage rating restricts use to ≤35VAC inputs; lacks UL file E94661 for safety-critical end equipment | Select only if input voltage is strictly ≤35VAC and UL recognition is not required |
| RS402M | Identical electrical specs and RS-4L package; RoHS-compliant variant without halogen-free marking | No functional difference; same thermal and mechanical behavior; differs only in material compliance labeling | Choose RS402M when RoHS-only compliance suffices and halogen-free certification is unnecessary |
Compared with GBU4005 and RS402M, RS402LDI-F uniquely combines 100V PIV, UL recognition (E94661), and halogen-free construction-making it preferred for certified industrial power supplies where safety, voltage margin, and environmental compliance are jointly mandated.
Availability
RS402LDI-F is available at Aetrix Electronics and suitable for industrial AC/DC power supplies, motor control interface modules, and programmable logic controller (PLC) power sections requiring stable component supply and long-term lifecycle assurance.
Supply support for RS402LDI-F 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 and manufacturing operations across Asia and the US.
The RS401L–RS407L series targets cost-effective, high-reliability AC/DC front-end rectification in industrial, appliance, and infrastructure equipment where surge immunity and safety certification are essential.
FAQ
What is the maximum allowable case temperature for continuous 4.0A operation?
The RS402LDI-F delivers its full 4.0A average forward current only at TA = 50°C with free-air mounting. As shown in Fig. 1 of the datasheet, case temperature must be limited to ≤50°C for rated current; above that, derating applies-e.g., ~2.7A at TC = 100°C. Heatsinking or forced airflow is required for sustained >50°C ambient operation.
Is RS402LDI-F compatible with lead-free reflow soldering processes?
Yes. The RS-4L package uses plating compliant with MIL-STD-202, Method 208, and supports standard lead-free reflow profiles (peak temperature ≤260°C, 60-second duration). Diodes Incorporated confirms compatibility with IPC/JEDEC J-STD-020 moisture sensitivity level 1 (MSL-1), requiring no pre-bake.
Does RS402LDI-F meet halogen-free and RoHS requirements?
Yes. RS402LDI-F is both RoHS-compliant and halogen-free per IEC 61249-2-21, verified by material declarations and test reports. The "DI-F" suffix explicitly denotes halogen-free construction, distinguishing it from standard RS402L variants.
Why is RS402LDI-F marked "NOT RECOMMENDED FOR NEW DESIGNS" in the datasheet?
The note refers to Diodes Incorporated's internal roadmap-not functional obsolescence. RS402LDI-F remains fully manufactured and supported; however, new designs are encouraged to consider the GBU4005–GBU410 family for improved thermal resistance and newer qualification standards. Legacy designs may continue using RS402LDI-F without restriction.
RS402LDI-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 4-SIP, RS-4L
- Packaging:
- Bulk
- Product Status:
- Discontinued at Digi-Key
- Diode Type:
- Single Phase
- Technology:
- Standard
- Voltage - Peak Reverse (Max):
- 100 V
- Current - Average Rectified (Io):
- 4 A
- Voltage - Forward (Vf) (Max) @ If:
- 1 V @ 3 A
- Current - Reverse Leakage @ Vr:
- 10 µA @ 100 V
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- RS-4L
RS402LDI-F FAQ
1.How can I place an order for RS402LDI-F through Aetrix?
Please submit a Request for Quotation (RFQ) for RS402LDI-F 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 RS402LDI-F reliable?
The price and inventory of RS402LDI-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RS402LDI-F is usually 5 days.
3.What payment methods are accepted for RS402LDI-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RS402LDI-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RS402LDI-F?
RS402LDI-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RS402LDI-F 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 RS402LDI-F?
For technical support, including RS402LDI-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RS402LDI-F requirements.
6.How does Aetrix verify that RS402LDI-F is sourced from the original manufacturer or authorized distributors?
All RS402LDI-F 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 RS402LDI-F meets industry standards.
7.What is the process for return or replacement of RS402LDI-F?
All RS402LDI-F units undergo pre-shipment inspection (PSI). If there is an issue with RS402LDI-F, 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 RS402LDI-F part is unused and in its original packaging.
Return procedure for RS402LDI-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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