DL4006 Equivalent & Substitute Parts

Part Overview

The DL4006 is a general-purpose rectifier diode manufactured by Micro Commercial Co, rated for 800 V DC reverse voltage and 1 A average rectified current in a surface mount MELF package. This component is classified as obsolete, which necessitates identification of functionally equivalent alternatives for ongoing design support and procurement.

The DL4006 operates with standard recovery characteristics (>500 ns) and is suitable for general rectification applications requiring 800 V blocking capability. Due to its obsolete status, equivalent active parts from current manufacturers must be evaluated for direct substitution or design migration.

Key Parameters

Parameter	Value	Specification
Voltage - DC Reverse (Vr) (Max)	800 V	Maximum reverse blocking voltage
Current - Average Rectified (Io)	1 A	Maximum average forward current
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 1 A	Forward voltage drop at rated current
Speed	Standard Recovery >500 ns, > 200 mA (Io)	Recovery time classification
Current - Reverse Leakage @ Vr	5 µA @ 800 V	Reverse saturation current
Mounting Type	Surface Mount	PCB assembly method
Package / Case	DO-213AB, MELF	Physical form factor
Operating Temperature - Junction	-65°C ~ 150°C	Thermal operating range
RoHS Status	RoHS non-compliant	Environmental compliance

Substitute Part Grouping Explanation

Substitution of the DL4006 is determined by the following critical parameters:

Primary Matching Criteria:

Voltage - DC Reverse (Vr) (Max): 800 V minimum
Current - Average Rectified (Io): 1 A minimum
Mounting Type: Surface Mount
Package / Case: MELF or equivalent surface mount form factor

Secondary Compatibility Factors:

Forward voltage drop (Vf) at rated current
Recovery speed classification
Operating temperature range
RoHS compliance status

Substitute parts are grouped into two categories:

Category A - Direct Electrical Equivalents (800 V, 1 A, Standard Recovery): Parts maintaining identical voltage and current ratings with standard recovery characteristics. These include 1N6483-E3/96 and 1N6483-E3/97 from Vishay, which provide equivalent electrical performance in the same MELF package with improved RoHS3 compliance.

Category B - Enhanced Voltage Rating (1000 V, 1 A): Parts with higher reverse voltage capability (1000 V) that operate within the 800 V application envelope. These include GL41M-E3/96, GL41M-E3/97, and GL41MHE3/97 from Vishay, offering design margin and RoHS3 compliance.

Category C - Alternative Package Geometry (D-5A): Parts with equivalent electrical ratings but different surface mount package geometry (SQ-MELF, A). These include 1N5620US, 1N5621US, and 1N5623US from Microchip Technology, suitable for designs with D-5A footprint compatibility.

Parameter Comparison

Part Number	Manufacturer	Vr (Max)	Io	Vf (Max) @ If	Speed	Package	Temp Range	RoHS Status	Product Status
DL4006	Micro Commercial Co	800 V	1 A	1.1 V @ 1 A	Standard >500 ns	DO-213AB, MELF	-65°C ~ 150°C	Non-compliant	Obsolete
1N6483-E3/96	Vishay	800 V	1 A	1.1 V @ 1 A	Standard >500 ns	DO-213AB, MELF	-65°C ~ 175°C	ROHS3 Compliant	Active
1N6483-E3/97	Vishay	800 V	1 A	1.1 V @ 1 A	Standard >500 ns	DO-213AB, MELF	-65°C ~ 175°C	ROHS3 Compliant	Active
GL41M-E3/96	Vishay	1000 V	1 A	1.2 V @ 1 A	Standard >500 ns	DO-213AB, MELF	-65°C ~ 175°C	ROHS3 Compliant	Active
GL41M-E3/97	Vishay	1000 V	1 A	1.2 V @ 1 A	Standard >500 ns	DO-213AB, MELF	-65°C ~ 175°C	ROHS3 Compliant	Active
GL41MHE3/97	Vishay	1000 V	1 A	1.2 V @ 1 A	Standard >500 ns	DO-213AB, MELF	-65°C ~ 175°C	ROHS3 Compliant	Active
1N5620US	Microchip Technology	800 V	1 A	1.3 V @ 3 A	Standard >500 ns	SQ-MELF, A (D-5A)	-65°C ~ 200°C	Non-compliant	Active
1N5621US	Microchip Technology	800 V	1 A	1.6 V @ 3 A	Fast ≤500 ns	SQ-MELF, A (D-5A)	-65°C ~ 175°C	Non-compliant	Active
1N5623US	Microchip Technology	1000 V	1 A	1.6 V @ 3 A	Fast ≤500 ns	SQ-MELF, A (D-5A)	-65°C ~ 175°C	Non-compliant	Active

Engineering Selection Recommendations

For Direct Replacement (Same Package, Same Voltage Rating):

The 1N6483-E3/96 and 1N6483-E3/97 from Vishay provide electrical equivalence to the DL4006 with identical voltage and current ratings, matching forward voltage characteristics, and identical MELF package geometry. Both parts are active products with ROHS3 compliance and extended operating temperature range (-65°C ~ 175°C versus -65°C ~ 150°C). These parts are the preferred substitutes for applications requiring no PCB layout modification.

For Design Migration with Enhanced Voltage Margin:

The GL41M-E3/96, GL41M-E3/97, and GL41MHE3/97 from Vishay offer 1000 V reverse voltage rating while maintaining 1 A current capacity and MELF package compatibility. These parts operate within the 800 V application envelope with additional design margin. Forward voltage increases to 1.2 V @ 1 A. All three variants are active products with ROHS3 compliance. GL41MHE3/97 provides the highest inventory availability (10,400 pcs).

For Alternative Package Geometry:

The 1N5620US from Microchip Technology provides 800 V, 1 A capability in a D-5A package variant with extended temperature range (-65°C ~ 200°C). The 1N5621US and 1N5623US offer fast recovery characteristics (≤500 ns) with higher voltage ratings (800 V and 1000 V respectively) in D-5A packages. These alternatives require PCB footprint modification and are suitable for designs with D-5A pad layouts.

Compliance Considerations:

The DL4006 is RoHS non-compliant. All Vishay substitutes (1N6483 and GL41M series) are ROHS3 compliant. Microchip alternatives (1N5620US, 1N5621US, 1N5623US) remain RoHS non-compliant. For applications requiring RoHS compliance, Vishay parts are mandatory.

Frequently Asked Questions (FAQ)

Q: Can the 1N6483-E3/96 directly replace the DL4006 without PCB modification?

A: Yes. The 1N6483-E3/96 maintains identical electrical ratings (800 V, 1 A, 1.1 V forward voltage) and uses the same DO-213AB MELF package. No PCB layout changes are required. The part is a direct pin-for-pin and footprint-compatible substitute.

Q: What is the difference between 1N6483-E3/96 and 1N6483-E3/97?

A: Both parts are electrically and mechanically identical. The suffix designates different tape and reel configurations for automated assembly. Selection depends on packaging and handling requirements, not electrical performance.

Q: Why would I select GL41M-E3/97 over 1N6483-E3/96 if both use MELF packages?

A: The GL41M-E3/97 provides 1000 V reverse voltage rating compared to 800 V for the 1N6483-E3/96. For applications operating at or near 800 V, the GL41M-E3/97 offers additional design margin and safety factor. Forward voltage increases from 1.1 V to 1.2 V @ 1 A. Both are ROHS3 compliant and use identical MELF packages.

Q: Are the Microchip 1N5620US, 1N5621US, and 1N5623US suitable substitutes?

A: These parts are electrically compatible (800 V or 1000 V, 1 A) but use a different surface mount package geometry (D-5A, SQ-MELF, A). PCB footprint modification is required. The 1N5621US and 1N5623US feature fast recovery (≤500 ns) versus the standard recovery (>500 ns) of the DL4006. These parts remain RoHS non-compliant.

Q: What is the operating temperature difference between DL4006 and its substitutes?

A: The DL4006 operates from -65°C to 150°C. The 1N6483 and GL41M series extend the upper limit to 175°C. The 1N5620US extends to 200°C. For applications operating near the upper temperature limit, verify that the substitute's extended range does not introduce thermal design changes.

Q: Does forward voltage difference between DL4006 (1.1 V) and GL41M (1.2 V) affect circuit performance?

A: The 0.1 V difference is specified at identical test conditions (1 A). In practical applications, forward voltage varies with junction temperature and actual current. For precision rectification circuits, verify that the 0.1 V increase does not exceed circuit tolerance. For general-purpose applications, this difference is typically negligible.

Q: Why is RoHS compliance important for DL4006 substitution?

A: The DL4006 is RoHS non-compliant. If the end application or customer requirement mandates RoHS compliance, only Vishay parts (1N6483-E3/96, 1N6483-E3/97, GL41M-E3/96, GL41M-E3/97, GL41MHE3/97) satisfy this requirement. Microchip alternatives do not provide RoHS compliance.

Q: Can I use 1N5623US (1000 V) in place of DL4006 (800 V)?

A: Yes, electrically. The 1N5623US operates within the 800 V application envelope with higher voltage margin. However, it uses a D-5A package requiring PCB footprint modification, features fast recovery (≤500 ns) versus standard recovery, and remains RoHS non-compliant. Evaluate whether these differences align with design requirements.

Q: What inventory considerations apply to these substitutes?

A: Current inventory levels are: 1N6483-E3/96 (5,659 pcs), GL41M-E3/97 (10,400 pcs), 1N5621US (1,035 pcs), and 1N5623US (938 pcs). For high-volume procurement, GL41M-E3/97 offers the highest availability. Verify long-term supply continuity with manufacturers for production commitments.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message