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Diodes Incorporated DL4003-13-F
- Part No.:
- DL4003-13-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- DO-213AB, MELF (Glass)
- Datasheet:
-
DL4003-13-F.pdf
- Description:
- DIODE GEN PURP 200V 1A MELF
- Quantity:
- Payment:
- Shipping:
Inventory:4,674
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Product details
Overview
DL4003-13-F from Diodes Incorporated is a glass passivated surface-mount silicon rectifier diode rated for 200 V peak repetitive reverse voltage (VRRM), 1.0 A average forward rectified current (IO) at 75°C terminal temperature, and 1.1 V maximum forward voltage (VF) at 1.0 A. It serves as a primary AC-to-DC conversion element in compact power supplies and DC input protection circuits.
For engineers reviewing the DL4003-13-F datasheet, DL4003-13-F pinout, DL4003-13-F application, or DL4003-13-F equivalent, key selection criteria include its MELF package thermal resistance (RJA = 50 K/W), low leakage (IR = 5.0 µA at 25°C), junction capacitance (Cj = 15 pF @ 4 V), surge capability (IFSM = 30 A), and UL 94V-0 flammability rating.
Technical Context
This device operates as a single-phase, half-wave rectifier under resistive or inductive loads at 60 Hz. Its glass passivation ensures stable junction integrity and low leakage across -55°C to +150°C operating range.
The MELF (Metal Electrode Leadless Face) cylindrical package enables high thermal dissipation per unit volume and supports automated placement. Derating is required for capacitive loads (20% current reduction) and elevated ambient temperatures per Fig. 1.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - Maximum repetitive reverse voltage before breakdown; defines safe AC input voltage ceiling in bridge or half-wave rectifiers. |
| IO @ TT=75°C | 1.0 A - Continuous DC output current capability with heatsinking limited by terminal temperature, not ambient. |
| VF @ IF=1.0A | 1.1 V - Forward conduction loss at rated load; determines power dissipation (1.1 W) and thermal design margin. |
| IFSM (8.3ms) | 30 A - Non-repetitive surge withstand; critical for handling inrush currents in offline SMPS input stages. |
| IR @ VR=200V, TA=25°C | 5.0 µA - Reverse leakage magnitude; impacts standby power and high-impedance sensing accuracy. |
| Cj @ VR=4V, 1MHz | 15 pF - Junction capacitance affecting high-frequency switching noise and EMI filter interaction. |
Pinout & Package
DL4003-13-F uses a two-terminal MELF (DO-213AB) package with axial cathode band marking. No discrete pins - terminals are solderable end caps conforming to MIL-STD-202, Method 208.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unmarked end) | Forward current entry point | Connected to AC source or transformer secondary during positive half-cycle conduction. |
| Cathode (band-marked end) | Forward current exit point | Delivers rectified DC to bulk capacitor or downstream regulator; polarity-sensitive for correct circuit operation. |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables stable IR ≤ 5 µA up to 100°C and long-term reliability in humid or thermally cycled environments. |
| UL 94V-0 plastic case | Meets flame-retardant safety requirements for enclosed power adapters and industrial control enclosures. |
| MELF package thermal resistance | RJA = 50 K/W allows 1.0 A operation without forced airflow when mounted on standard FR4 PCB with minimal copper area. |
| Low VF at 1.0A | 1.1 V drop reduces conduction losses by ~15% vs. legacy 1N400x series, improving efficiency in low-power offline supplies. |
Applications
| AC-DC Adapter Input Stage | Industrial Sensor Power Supply |
|---|---|
Use Scenario: Rectifying 12–24 VAC transformer output in wall-wart adapters powering IoT gateways. IC Role / Device Role / Timing Role: Primary unidirectional current path enabling DC bus generation; polarity-critical for capacitor charging sequence. Use Value: 1.1 V VF minimizes heat rise in sealed enclosures; MELF form factor fits high-density PCB layouts. | Use Scenario: Providing isolated DC bias to 4–20 mA loop-powered pressure transmitters in factory automation. IC Role / Device Role / Timing Role: Reverse-polarity protection and AC line rectification ahead of LDO regulators. Use Value: 5 µA IR ensures negligible error in microamp-level sensor bias current paths. |
| LED Driver Input Protection | UPS Backup Charging Circuit |
Use Scenario: Front-end rectification in constant-current LED drivers for commercial lighting fixtures. IC Role / Device Role / Timing Role: Half-wave rectifier feeding bulk capacitor; handles 30 A surge during cold-start capacitor inrush. Use Value: IFSM = 30 A prevents failure during repeated hot-plug events in field-deployed luminaires. | Use Scenario: Converting AC mains to DC for charging sealed lead-acid batteries in line-interactive UPS units. IC Role / Device Role / Timing Role: Main rectifier in dual-diode configuration for battery float charging path. Use Value: 200 V VRRM accommodates 170 V peak mains with margin; RJA = 50 K/W sustains 1 A continuous charge current. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar rectifier diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4003-T | Higher VF (1.2 V @ 1 A), larger DO-41 package, RJA ≈ 65 K/W | Limited to lower-density through-hole designs; less suitable for thermally constrained SMT layouts | Choose when legacy through-hole assembly or cost sensitivity outweighs thermal and space advantages. |
| ES1D-E3/54 | Fast recovery (trr = 35 ns), same VRRM/IO but higher VF (1.7 V), SMA package | Better for high-frequency flyback snubbers; higher conduction loss reduces efficiency in linear rectification | Prefer for switching regulator inputs where reverse recovery matters more than forward loss. |
Compared with 1N4003-T and ES1D-E3/54, DL4003-13-F delivers optimal balance of low VF, MELF thermal performance, and compact SMT footprint for general-purpose 200 V rectification-without fast-recovery overhead or through-hole constraints.
Availability
DL4003-13-F is available at Aetrix Electronics and suitable for AC-DC adapters, industrial sensor power supplies, LED driver input stages, and UPS backup charging circuits requiring stable component supply and consistent MELF package dimensions.
Supply support for DL4003-13-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 Americas.
The DL400x series targets cost-sensitive, high-reliability surface-mount rectification in consumer, industrial, and computing power supplies-emphasizing thermal robustness, low leakage, and UL-compliant packaging.
FAQ
What is the maximum allowable ambient temperature for DL4003-13-F at full 1.0 A load?
At 1.0 A continuous forward current, DL4003-13-F must be operated with terminal temperature (TT) ≤ 75°C. Given RJA = 50 K/W and power dissipation of ~1.1 W, ambient temperature must remain ≤ 20°C with no heatsinking. Derating curves (Fig. 1) show usable ambient up to 65°C only if current is reduced to 0.5 A.
Can DL4003-13-F replace 1N4003 in existing through-hole designs?
No-DL4003-13-F uses a MELF (DO-213AB) surface-mount package, while 1N4003 uses DO-41 through-hole. Direct replacement requires PCB redesign. Electrical specs align closely (both 200 V, 1 A), but thermal behavior differs due to package geometry and mounting method.
Is DL4003-13-F suitable for use in capacitive-input filter circuits?
Yes, but with 20% derating of IO per datasheet Note 1. In capacitive-input configurations, peak current stress increases significantly; DL4003-13-F's 30 A IFSM supports this, but average current must be limited to 0.8 A to maintain reliability and avoid overheating.
Does DL4003-13-F meet RoHS and REACH requirements?
Yes-DL4003-13-F is RoHS-compliant (lead-free terminations, compliant with Directive 2011/65/EU) and REACH-conformant (SVHC-free per latest Diodes Incorporated declaration). Full compliance documentation is available via Diodes' official product page and Aetrix's material declarations portal.
DL4003-13-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- DO-213AB, MELF (Glass)
- Packaging:
- Cut Tape (CT)
- Product Status:
- Obsolete
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 200 V
- Current - Average Rectified (Io):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 1 A
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 5 µA @ 200 V
- Capacitance @ Vr, F:
- 15pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- MELF
- Operating Temperature - Junction:
- -55°C ~ 150°C
DL4003-13-F FAQ
1.How can I place an order for DL4003-13-F through Aetrix?
Please submit a Request for Quotation (RFQ) for DL4003-13-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 DL4003-13-F reliable?
The price and inventory of DL4003-13-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DL4003-13-F is usually 5 days.
3.What payment methods are accepted for DL4003-13-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DL4003-13-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DL4003-13-F?
DL4003-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DL4003-13-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 DL4003-13-F?
For technical support, including DL4003-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DL4003-13-F requirements.
6.How does Aetrix verify that DL4003-13-F is sourced from the original manufacturer or authorized distributors?
All DL4003-13-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 DL4003-13-F meets industry standards.
7.What is the process for return or replacement of DL4003-13-F?
All DL4003-13-F units undergo pre-shipment inspection (PSI). If there is an issue with DL4003-13-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 DL4003-13-F part is unused and in its original packaging.
Return procedure for DL4003-13-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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