DL4003-13 Equivalent & Substitute Parts

Part Overview

The DL4003-13 is a general-purpose rectifier diode manufactured by Diodes Incorporated, rated for 200 V DC reverse voltage and 1 A average rectified current in a surface mount MELF (DO-213AB) package. This component is classified as discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives for ongoing design support and procurement.

Substitute parts must maintain electrical compatibility across voltage rating, current capacity, and thermal operating range while accommodating available packaging and compliance certifications.

Key Parameters

Parameter	DL4003-13 Specification
Voltage - DC Reverse (Vr) (Max)	200 V
Current - Average Rectified (Io)	1 A
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 1 A
Speed	Standard Recovery >500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr	5 µA @ 200 V
Mounting Type	Surface Mount
Package / Case	DO-213AB, MELF (Glass)
Operating Temperature - Junction	-55°C ~ 150°C
RoHS Status	RoHS non-compliant

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following criteria:

Mandatory Electrical Parameters:

Voltage - DC Reverse (Vr) (Max): 200 V minimum
Current - Average Rectified (Io): 1 A minimum
Mounting Type: Surface Mount
Package / Case: DO-213AB, MELF (Glass) or compatible surface mount MELF variant

Compatibility Considerations:

Forward voltage (Vf) must not exceed application circuit requirements
Reverse recovery characteristics (speed classification) must be compatible with circuit switching frequency
Reverse leakage current must be acceptable for application bias conditions
Operating temperature range must encompass application requirements

Compliance Factors:

RoHS status and REACH compliance affect suitability for regulated markets
Moisture Sensitivity Level (MSL) of 1 (Unlimited) is maintained across all substitutes

The following parts meet substitution criteria based on electrical and mechanical compatibility:

BYM10-200-E3/97 (Vishay): Identical package, voltage, and current ratings; ROHS3 compliant
EGL41D-E3/96 and EGL41D-E3/97 (Vishay): Identical package, voltage, and current ratings; fast recovery technology; ROHS3 compliant
RGL41D-E3/96 (Vishay): Identical package, voltage, and current ratings; fast recovery technology; ROHS3 compliant
1N5614US (Microchip Technology): Equivalent voltage and current ratings; alternative package variant (SQ-MELF, A); active product status

Parameter Comparison

Parameter	DL4003-13	BYM10-200-E3/97	EGL41D-E3/96	EGL41D-E3/97	RGL41D-E3/96	1N5614US
Manufacturer	Diodes Incorporated	Vishay General Semiconductor	Vishay General Semiconductor	Vishay General Semiconductor	Vishay General Semiconductor	Microchip Technology
Voltage - DC Reverse (Vr) (Max)	200 V	200 V	200 V	200 V	200 V	200 V
Current - Average Rectified (Io)	1 A	1 A	1 A	1 A	1 A	1 A
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 1 A	1.1 V @ 1 A	1 V @ 1 A	1 V @ 1 A	1.3 V @ 1 A	1.3 V @ 3 A
Speed	Standard Recovery >500ns, > 200mA (Io)	Standard Recovery >500ns, > 200mA (Io)	Fast Recovery =< 500ns, > 200mA (Io)	Fast Recovery =< 500ns, > 200mA (Io)	Fast Recovery =< 500ns, > 200mA (Io)	Standard Recovery >500ns, > 200mA (Io)
Reverse Recovery Time (trr)	Not specified	Not specified	50 ns	50 ns	150 ns	2 µs
Current - Reverse Leakage @ Vr	5 µA @ 200 V	10 µA @ 200 V	5 µA @ 200 V	5 µA @ 200 V	5 µA @ 200 V	500 nA @ 200 V
Capacitance @ Vr, F	15pF @ 4V, 1MHz	8pF @ 4V, 1MHz	20pF @ 4V, 1MHz	20pF @ 4V, 1MHz	15pF @ 4V, 1MHz	Not specified
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	DO-213AB, MELF (Glass)	DO-213AB, MELF (Glass)	DO-213AB, MELF (Glass)	DO-213AB, MELF (Glass)	DO-213AB, MELF (Glass)	SQ-MELF, A
Operating Temperature - Junction	-55°C ~ 150°C	-65°C ~ 175°C	-65°C ~ 175°C	-65°C ~ 175°C	-65°C ~ 175°C	-65°C ~ 200°C
Product Status	Discontinued at DiGi Electronics	Active	Active	Active	Active	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	RoHS non-compliant
Technology	Standard	Avalanche	Standard	Standard	Standard	Standard

Engineering Selection Recommendations

Primary Substitutes (Identical Package, Active Status, ROHS3 Compliant):

The Vishay SUPERECTIFIER® series parts (BYM10-200-E3/97, EGL41D-E3/96, EGL41D-E3/97, RGL41D-E3/96) are direct mechanical and electrical substitutes in the DO-213AB MELF package. All maintain 200 V / 1 A ratings and are actively manufactured. These parts offer extended operating temperature ranges (-65°C to 175°C or higher) compared to the DL4003-13 (-55°C to 150°C), providing improved thermal margin. ROHS3 compliance of these Vishay alternatives supports regulatory requirements for new designs and procurement in restricted markets.

Selection by Recovery Characteristics:

BYM10-200-E3/97: Standard recovery classification matches the DL4003-13 recovery speed profile. Avalanche technology provides additional overvoltage protection. Recommended for direct replacement in existing circuit topologies.
EGL41D-E3/96 and EGL41D-E3/97: Fast recovery (≤500 ns) with 50 ns reverse recovery time. Forward voltage reduced to 1.0 V @ 1 A. Suitable for higher-frequency switching applications or circuits requiring lower forward voltage drop. Identical electrical specifications between these two variants; selection depends on packaging availability (both Tape & Reel).
RGL41D-E3/96: Fast recovery with 150 ns reverse recovery time and 1.3 V forward voltage. Intermediate recovery performance between standard and ultra-fast categories. Suitable for moderate-frequency applications requiring fast recovery without the lowest forward voltage penalty.

Alternative Package Consideration:

The 1N5614US (Microchip Technology) provides equivalent 200 V / 1 A electrical ratings with extended temperature range (-65°C to 200°C) and superior reverse leakage (500 nA @ 200 V). However, this part uses SQ-MELF package variant (D-5A) rather than standard DO-213AB MELF. Mechanical compatibility with existing PCB layouts must be verified before selection. This part maintains RoHS non-compliant status, matching the original DL4003-13.

Compliance Considerations:

For applications requiring ROHS3 compliance, Vishay SUPERECTIFIER® alternatives are mandatory. For legacy designs without regulatory compliance requirements, the 1N5614US provides an alternative with superior leakage characteristics and wider temperature range.

Frequently Asked Questions (FAQ)

Q: Can the EGL41D-E3/96 and EGL41D-E3/97 be used interchangeably with the DL4003-13?

A: Yes. Both parts maintain identical electrical specifications (200 V, 1 A, 1.0 V forward voltage @ 1 A, fast recovery ≤500 ns) and use the same DO-213AB MELF package. The primary difference is packaging format (Tape & Reel variant designation /96 vs. /97), which does not affect electrical performance or mechanical fit on PCBs.

Q: What is the difference between standard recovery and fast recovery diodes?

A: Recovery speed classification refers to reverse recovery time (trr). Standard recovery (>500 ns) is suitable for low-frequency rectification and power supply applications. Fast recovery (≤500 ns) reduces switching losses in higher-frequency circuits. The DL4003-13 is standard recovery; EGL41D and RGL41D variants offer fast recovery options for applications requiring reduced switching losses.

Q: Is the 1N5614US a direct replacement for the DL4003-13?

A: Electrical specifications are equivalent (200 V, 1 A, standard recovery). However, the 1N5614US uses SQ-MELF package (D-5A) rather than standard DO-213AB MELF. Physical dimensions and PCB footprint compatibility must be verified. Consult package drawings before substitution.

Q: Why do the Vishay alternatives have lower forward voltage (1.0 V) compared to the DL4003-13 (1.1 V)?

A: Forward voltage variation is a normal characteristic of semiconductor manufacturing and design optimization. Lower forward voltage reduces power dissipation in rectification circuits. This is a beneficial characteristic and does not prevent substitution; circuits designed for 1.1 V forward voltage operate correctly with lower-voltage alternatives.

Q: Are all substitute parts RoHS compliant?

A: No. The Vishay SUPERECTIFIER® series (BYM10-200-E3/97, EGL41D-E3/96, EGL41D-E3/97, RGL41D-E3/96) are ROHS3 compliant. The 1N5614US is RoHS non-compliant, matching the original DL4003-13. For applications requiring RoHS compliance, select Vishay alternatives exclusively.

Q: What is the significance of the extended operating temperature range in substitute parts?

A: The DL4003-13 operates from -55°C to 150°C. Substitute parts extend this range to -65°C to 175°C (Vishay) or -65°C to 200°C (1N5614US). Extended temperature range provides design margin for applications operating near thermal limits and improves reliability in extreme environmental conditions.

Q: Can I use the BYM10-200-E3/97 in a circuit designed for the DL4003-13?

A: Yes. The BYM10-200-E3/97 maintains identical voltage (200 V), current (1 A), forward voltage (1.1 V @ 1 A), and recovery speed (standard recovery >500 ns) specifications. The DO-213AB MELF package is mechanically identical. Direct substitution is supported without circuit modification.

Q: What does "Avalanche" technology mean in the BYM10-200-E3/97?

A: Avalanche technology provides controlled breakdown characteristics under reverse overvoltage conditions, offering additional protection against voltage transients. This is a beneficial feature that does not affect normal rectification operation and enhances circuit robustness.

Q: How do I select between multiple Vishay alternatives?

A: Selection depends on circuit requirements: (1) For standard-frequency rectification matching original performance, select BYM10-200-E3/97. (2) For higher-frequency applications or lower power dissipation, select EGL41D-E3/96 or EGL41D-E3/97 (fast recovery, 1.0 V forward voltage). (3) For intermediate recovery performance, select RGL41D-E3/96. All three are ROHS3 compliant and actively manufactured.

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