DL4007 Equivalent & Substitute Parts

Part Overview

The DL4007 is a general-purpose rectifier diode manufactured by Micro Commercial Co, rated for 1000 V DC reverse voltage and 1 A average rectified current in a surface mount MELF (DO-213AB) package. This part is classified as obsolete, which necessitates identification of active equivalent and substitute components for ongoing design requirements and production continuity. Substitute parts must maintain electrical compatibility across voltage, current, and thermal specifications while accommodating available packaging and compliance certifications.

Key Parameters

Parameter	DL4007 Specification
Voltage - DC Reverse (Vr) (Max)	1000 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 @ 1000 V
Mounting Type	Surface Mount
Package / Case	DO-213AB, MELF
Operating Temperature - Junction	Not specified
RoHS Status	RoHS non-compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the DL4007 are grouped based on the following electrical and mechanical compatibility criteria:

Primary Substitution Criteria:

Voltage - DC Reverse (Vr) (Max): Must equal or exceed 1000 V
Current - Average Rectified (Io): Must equal or exceed 1 A
Mounting Type: Surface Mount
Package / Case: DO-213AB, MELF or equivalent surface mount MELF package
Moisture Sensitivity Level (MSL): 1 (Unlimited)

Grouping Logic:

Group 1: Direct Equivalents (1000 V, 1 A, DO-213AB MELF) Parts that match all primary electrical specifications and package requirements with identical or superior performance characteristics. These include Vishay SUPERECTIFIER® series diodes (1N6484HE3/96, 1N6484HE3/97, BYM10-1000-E3/96, BYM10-1000-E3/97, BYM10-1000/1, BYM10-1000HE3/96) which provide active product status and RoHS3 compliance.

Group 2: Voltage-Reduced Substitutes (800 V, 1 A, DO-213AB MELF) Parts that maintain 1 A current rating and DO-213AB MELF packaging but operate at reduced reverse voltage (800 V). These are suitable only for applications where the maximum reverse voltage requirement does not exceed 800 V. This group includes GL41K-E3/96 and GL41K-E3/97.

Group 3: Package-Variant Substitutes (1000 V, 1 A, Alternative Surface Mount) Parts that maintain 1000 V and 1 A specifications but use alternative surface mount packages (D-5A, SQ-MELF). These include 1N5623US and 1N5621US (800 V variant). Package compatibility must be verified for PCB layout and assembly equipment.

Parameter Comparison

Part Number	Manufacturer	Vr (Max)	Io	Vf (Max) @ If	Speed	Ir @ Vr	Package	Product Status	RoHS Status
DL4007	Micro Commercial Co	1000 V	1 A	1.1 V @ 1 A	Standard Recovery >500ns	5 µA @ 1000 V	DO-213AB, MELF	Obsolete	RoHS non-compliant
1N5621US	Microchip Technology	800 V	1 A	1.6 V @ 3 A	Fast Recovery ≤500ns	500 nA @ 800 V	SQ-MELF, A	Active	RoHS non-compliant
1N5623US	Microchip Technology	1000 V	1 A	1.6 V @ 3 A	Fast Recovery ≤500ns	500 nA @ 1000 V	SQ-MELF, A	Active	RoHS non-compliant
1N6484HE3/96	Vishay General Semiconductor - Diodes Division	1000 V	1 A	1.1 V @ 1 A	Standard Recovery >500ns	10 µA @ 1000 V	DO-213AB, MELF (Glass)	Active	ROHS3 Compliant
1N6484HE3/97	Vishay General Semiconductor - Diodes Division	1000 V	1 A	1.1 V @ 1 A	Standard Recovery >500ns	10 µA @ 1000 V	DO-213AB, MELF (Glass)	Active	ROHS3 Compliant
BYM10-1000-E3/96	Vishay General Semiconductor - Diodes Division	1000 V	1 A	1.2 V @ 1 A	Standard Recovery >500ns	10 µA @ 1000 V	DO-213AB, MELF (Glass)	Active	ROHS3 Compliant
BYM10-1000-E3/97	Vishay General Semiconductor - Diodes Division	1000 V	1 A	1.2 V @ 1 A	Standard Recovery >500ns	10 µA @ 1000 V	DO-213AB, MELF (Glass)	Active	ROHS3 Compliant
BYM10-1000/1	Vishay General Semiconductor - Diodes Division	1000 V	1 A	1.2 V @ 1 A	Standard Recovery >500ns	10 µA @ 1000 V	DO-213AB, MELF (Glass)	Active	ROHS3 Compliant
BYM10-1000HE3/96	Vishay General Semiconductor - Diodes Division	1000 V	1 A	1.2 V @ 1 A	Standard Recovery >500ns	10 µA @ 1000 V	DO-213AB, MELF (Glass)	Active	ROHS3 Compliant
GL41K-E3/96	Vishay General Semiconductor - Diodes Division	800 V	1 A	1.2 V @ 1 A	Standard Recovery >500ns	10 µA @ 800 V	DO-213AB, MELF (Glass)	Active	ROHS3 Compliant
GL41K-E3/97	Vishay General Semiconductor - Diodes Division	800 V	1 A	1.2 V @ 1 A	Standard Recovery >500ns	10 µA @ 800 V	DO-213AB, MELF (Glass)	Active	ROHS3 Compliant

Engineering Selection Recommendations

Recommended Primary Substitutes (Full Electrical and Package Equivalence):

The Vishay SUPERECTIFIER® series diodes provide the most direct substitution path for the obsolete DL4007:

1N6484HE3/96 and 1N6484HE3/97: Identical electrical specifications (1000 V, 1 A, 1.1 V forward voltage @ 1 A) with DO-213AB MELF packaging. Both are active products with ROHS3 compliance, addressing regulatory requirements beyond the original part.
BYM10-1000-E3/96, BYM10-1000-E3/97, BYM10-1000/1, and BYM10-1000HE3/96: Meet all electrical requirements with marginally higher forward voltage (1.2 V @ 1 A) and identical reverse leakage characteristics. All are active products with ROHS3 compliance.

These parts maintain identical reverse voltage (1000 V), current rating (1 A), recovery speed classification (Standard Recovery >500ns), and package form factor (DO-213AB MELF). The transition from RoHS non-compliant to ROHS3 compliant status aligns with current regulatory frameworks.

Secondary Substitutes (Voltage-Reduced, Same Package):

GL41K-E3/96 and GL41K-E3/97: Suitable only for applications where reverse voltage stress does not exceed 800 V. These maintain 1 A current rating and DO-213AB MELF packaging with ROHS3 compliance. Use only when circuit design confirms maximum reverse voltage will not exceed 800 V.

Alternative Package Substitutes (Full Electrical Equivalence, Different Package):

1N5623US: Matches 1000 V and 1 A specifications with active product status. Uses D-5A (SQ-MELF) package variant. Suitable only if PCB layout and assembly equipment accommodate the alternative package geometry.
1N5621US: Operates at reduced 800 V reverse voltage with 1 A current rating. D-5A package variant. Applicable only for 800 V maximum reverse voltage applications with compatible assembly equipment.

Compliance Considerations:

All recommended Vishay substitutes provide ROHS3 compliance, addressing environmental and regulatory requirements. The original DL4007 is RoHS non-compliant; migration to compliant alternatives is recommended for new designs and long-term supply chain stability.

Frequently Asked Questions (FAQ)

Q: Can the 1N5621US (800 V) be used as a direct replacement for the DL4007 (1000 V)?

A: No. The 1N5621US is rated for 800 V maximum reverse voltage, while the DL4007 is rated for 1000 V. Use 1N5621US only in applications where the maximum reverse voltage does not exceed 800 V. For 1000 V applications, use 1N5623US or the Vishay 1000 V rated alternatives.

Q: What is the difference between the Vishay 1N6484HE3/96 and BYM10-1000-E3/96?

A: Both are 1000 V, 1 A surface mount MELF diodes with identical reverse voltage and current ratings. The primary difference is forward voltage: 1N6484HE3/96 specifies 1.1 V @ 1 A, while BYM10-1000-E3/96 specifies 1.2 V @ 1 A. Both are ROHS3 compliant and active products. Selection depends on circuit requirements for forward voltage drop.

Q: Are the D-5A package variants (1N5623US, 1N5621US) compatible with existing DL4007 PCB layouts?

A: No. The D-5A (SQ-MELF) package has different physical dimensions and footprint compared to the DO-213AB MELF package used by the DL4007. PCB layout and assembly equipment must be verified for compatibility before substitution. The Vishay parts with DO-213AB MELF packaging (1N6484HE3/96, BYM10-1000-E3/96, etc.) maintain identical package form factor.

Q: Why do the Vishay substitutes show higher reverse leakage current (10 µA @ 1000 V) compared to the DL4007 (5 µA @ 1000 V)?

A: The specified reverse leakage values reflect manufacturing process differences between Micro Commercial Co and Vishay. Both values are within acceptable ranges for general-purpose rectifier applications. Circuit design should not depend on the specific leakage value difference of 5 µA.

Q: Is the DL4007 still available for purchase?

A: The DL4007 is classified as obsolete. While inventory may exist in distribution channels (2200 pcs noted as in stock), long-term availability is not assured. Migration to active substitute parts is recommended for design continuity and supply chain reliability.

Q: What does "Standard Recovery >500ns" mean, and how does it compare to "Fast Recovery ≤500ns"?

A: Recovery speed refers to reverse recovery time (trr), the time required for a diode to stop conducting when reverse bias is applied. Standard Recovery (>500ns) is slower than Fast Recovery (≤500ns). The DL4007 and its primary Vishay substitutes use Standard Recovery. The Microchip 1N5623US uses Fast Recovery. For most general-purpose rectifier applications, both are acceptable; however, circuit design should confirm compatibility with switching frequency and transient response requirements.

Q: Can I use GL41K-E3/96 (800 V) in a 1000 V application?

A: No. The GL41K-E3/96 is rated for 800 V maximum reverse voltage. Using it in a 1000 V application exposes the diode to voltages beyond its rating, risking failure and circuit damage. Use only in applications where maximum reverse voltage does not exceed 800 V.

Q: What is the significance of the "/96" and "/97" suffixes in Vishay part numbers?

A: The "/96" and "/97" suffixes indicate different manufacturing date codes or packaging configurations (Tape & Reel vs. Cut Tape). Both variants meet identical electrical specifications. Selection between them depends on packaging and delivery format requirements for assembly operations.

Q: Are all substitute parts MSL 1 (Unlimited)?

A: Yes. All listed substitute parts, including the original DL4007, are classified as MSL 1 (Unlimited), indicating no moisture sensitivity precautions are required during storage or handling.

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