LL4007G L0 Equivalent & Substitute Parts

Part Overview

The LL4007G L0 is a general-purpose rectifier diode rated for 1000 V DC reverse voltage and 1 A average rectified current in a surface mount MELF package. Manufactured by Taiwan Semiconductor Corporation, this component is classified as obsolete. Equivalent and substitute parts are necessary to maintain design continuity and ensure component availability for production and repair applications. Active alternatives from established manufacturers provide equivalent electrical performance with improved availability and extended product lifecycle support.

Key Parameters

Parameter	Value	Specification
Voltage - DC Reverse (Vr) (Max)	1000 V	Maximum reverse voltage rating
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 >500ns, > 200mA (Io)	Recovery time classification
Current - Reverse Leakage @ Vr	5 µA @ 1000 V	Reverse saturation current
Capacitance @ Vr, F	15pF @ 4V, 1MHz	Junction capacitance
Mounting Type	Surface Mount	PCB assembly method
Package / Case	DO-213AB, MELF	Physical package designation
Operating Temperature - Junction	-65°C ~ 150°C	Thermal operating range
Technology	Standard	Diode technology type
RoHS Status	ROHS3 Compliant	Environmental compliance
Moisture Sensitivity Level (MSL)	1 (Unlimited)	Moisture handling classification

Substitute Part Grouping Explanation

Substitute parts for the LL4007G L0 are selected based on strict electrical and mechanical parameter matching. The primary substitution criteria are:

Critical Matching Parameters:

Voltage - DC Reverse (Vr) (Max): 1000 V
Current - Average Rectified (Io): 1 A
Mounting Type: Surface Mount
Package / Case: DO-213AB, MELF

Secondary Compatibility Parameters:

Voltage - Forward (Vf) (Max) @ If: 1.1 V @ 1 A (or equivalent)
Speed: Standard Recovery >500ns, > 200mA (Io)
Operating Temperature - Junction: -65°C minimum to 150°C minimum
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)

Substitute parts are grouped into two technology categories:

Group 1: Standard Technology Diodes (1N6484 Series) These parts maintain identical forward voltage characteristics (1.1 V @ 1 A) and standard recovery speed specifications. The 1N6484 series from Vishay General Semiconductor includes variants with different packaging codes (E3/96, E3/97) and thermal grades (standard and high-temperature H-grade versions).

Group 2: Avalanche Technology Diodes (BYM10 Series) These parts feature avalanche-rated technology with slightly elevated forward voltage (1.2 V @ 1 A) but maintain all other critical electrical parameters. The BYM10 series includes multiple packaging and thermal variants.

Group 3: Fast Recovery Standard Technology (BYM11 Series) The BYM11-1000-E3/96 provides fast recovery characteristics (≤500ns) with elevated forward voltage (1.3 V @ 1 A) and higher capacitance (15pF @ 4V, 1MHz), matching the original LL4007G L0 specifications more closely in these parameters.

All substitute parts are active products with ROHS3 compliance and MSL 1 rating, ensuring regulatory compliance and handling compatibility with the original component.

Parameter Comparison

Parameter	LL4007G L0	1N6484-E3/96	1N6484-E3/97	1N6484HE3/96	1N6484HE3/97	BYM10-1000-E3/96	BYM10-1000-E3/97	BYM10-1000/1	BYM10-1000HE3/96	BYM10-1000HE3/97	BYM11-1000-E3/96
Voltage - DC Reverse (Vr) (Max)	1000 V	1000 V	1000 V	1000 V	1000 V	1000 V	1000 V	1000 V	1000 V	1000 V	1000 V
Current - Average Rectified (Io)	1 A	1 A	1 A	1 A	1 A	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	1.1 V @ 1 A	1.1 V @ 1 A	1.1 V @ 1 A	1.2 V @ 1 A	1.2 V @ 1 A	1.2 V @ 1 A	1.2 V @ 1 A	1.2 V @ 1 A	1.3 V @ 1 A
Speed	Standard Recovery >500ns, > 200mA (Io)	Standard Recovery >500ns, > 200mA (Io)	Standard Recovery >500ns, > 200mA (Io)	Standard Recovery >500ns, > 200mA (Io)	Standard Recovery >500ns, > 200mA (Io)	Standard Recovery >500ns, > 200mA (Io)	Standard Recovery >500ns, > 200mA (Io)	Standard Recovery >500ns, > 200mA (Io)	Standard Recovery >500ns, > 200mA (Io)	Standard Recovery >500ns, > 200mA (Io)	Fast Recovery =< 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr	5 µA @ 1000 V	10 µA @ 1000 V	10 µA @ 1000 V	10 µA @ 1000 V	10 µA @ 1000 V	10 µA @ 1000 V	10 µA @ 1000 V	10 µA @ 1000 V	10 µA @ 1000 V	10 µA @ 1000 V	5 µA @ 1000 V
Capacitance @ Vr, F	15pF @ 4V, 1MHz	8pF @ 4V, 1MHz	8pF @ 4V, 1MHz	8pF @ 4V, 1MHz	8pF @ 4V, 1MHz	8pF @ 4V, 1MHz	8pF @ 4V, 1MHz	8pF @ 4V, 1MHz	8pF @ 4V, 1MHz	8pF @ 4V, 1MHz	15pF @ 4V, 1MHz
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	DO-213AB, MELF	DO-213AB, MELF (Glass)	DO-213AB, MELF (Glass)	DO-213AB, MELF (Glass)	DO-213AB, MELF (Glass)	DO-213AB, MELF (Glass)	DO-213AB, MELF (Glass)	DO-213AB, MELF (Glass)	DO-213AB, MELF (Glass)	DO-213AB, MELF (Glass)	DO-213AB, MELF (Glass)
Operating Temperature - Junction	-65°C ~ 150°C	-65°C ~ 175°C	-65°C ~ 175°C	-65°C ~ 175°C	-65°C ~ 175°C	-65°C ~ 175°C	-65°C ~ 175°C	-65°C ~ 175°C	-65°C ~ 175°C	-65°C ~ 175°C	-65°C ~ 175°C
Technology	Standard	Standard	Standard	Standard	Standard	Avalanche	Avalanche	Avalanche	Avalanche	Avalanche	Standard
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active

Engineering Selection Recommendations

Primary Substitutes (Closest Electrical Match):

The 1N6484 series (1N6484-E3/96, 1N6484-E3/97, 1N6484HE3/96, 1N6484HE3/97) from Vishay General Semiconductor provides the closest electrical equivalence to the LL4007G L0. These parts maintain identical forward voltage specifications (1.1 V @ 1 A) and standard recovery speed characteristics. All variants are active products with ROHS3 compliance and MSL 1 rating. The E3/96 and E3/97 designations indicate different tape reel configurations, while the H-grade variants provide extended junction temperature ratings to 175°C. Selection between standard and H-grade versions depends on thermal design requirements.

Secondary Substitutes (Avalanche Technology):

The BYM10 series (BYM10-1000-E3/96, BYM10-1000-E3/97, BYM10-1000/1, BYM10-1000HE3/96, BYM10-1000HE3/97) offers avalanche-rated technology with slightly elevated forward voltage (1.2 V @ 1 A). These parts maintain all critical voltage and current ratings and are active products with full compliance certifications. The avalanche rating provides additional overvoltage protection capability. Multiple packaging variants and thermal grades are available.

Tertiary Substitute (Fast Recovery Characteristics):

The BYM11-1000-E3/96 provides fast recovery characteristics (≤500ns) with elevated forward voltage (1.3 V @ 1 A) and capacitance matching the original part (15pF @ 4V, 1MHz). This variant is suitable for applications requiring faster switching performance. It is an active product with ROHS3 compliance and MSL 1 rating.

Selection Criteria:

For direct replacement with minimal circuit impact: Select 1N6484 series variants
For enhanced overvoltage protection: Select BYM10 series variants
For faster switching applications: Select BYM11-1000-E3/96
For extended thermal operation: Select H-grade variants (operating temperature to 175°C)
For packaging compatibility: Verify tape reel configuration (E3/96, E3/97, or bulk) matches procurement requirements

All substitute parts are manufactured by Vishay General Semiconductor - Diodes Division, an established supplier with consistent product quality and availability.

Frequently Asked Questions (FAQ)

Q: Can the 1N6484 series directly replace the LL4007G L0 without circuit modifications?

A: Yes. The 1N6484 series maintains identical voltage ratings (1000 V reverse, 1.1 V forward @ 1 A), current rating (1 A), recovery speed (standard >500ns), and package type (DO-213AB MELF). The primary difference is extended operating temperature range (-65°C to 175°C versus -65°C to 150°C), which is a performance improvement. No circuit modifications are required.

Q: What is the difference between the BYM10 and 1N6484 series?

A: The BYM10 series uses avalanche technology and has a slightly higher forward voltage (1.2 V @ 1 A versus 1.1 V @ 1 A). Avalanche technology provides additional overvoltage protection. Both series maintain identical reverse voltage (1000 V), forward current (1 A), and package specifications. The BYM10 is suitable for applications requiring enhanced transient overvoltage protection.

Q: What do the E3/96 and E3/97 designations mean?

A: These designations indicate different tape reel packaging configurations used for automated assembly. E3/96 and E3/97 refer to specific reel formats and tape specifications. Both provide identical electrical performance. Selection depends on procurement and assembly equipment compatibility. Consult your assembly supplier for specific reel format requirements.

Q: Are H-grade variants (1N6484HE3/96, BYM10-1000HE3/96) necessary for my application?

A: H-grade variants extend the maximum junction operating temperature to 175°C compared to 150°C for standard grades. Select H-grade variants only if your thermal design analysis indicates junction temperatures will exceed 150°C. For most applications operating at or below 150°C junction temperature, standard-grade variants are sufficient and may offer cost advantages.

Q: Why does the BYM11-1000-E3/96 have higher forward voltage (1.3 V @ 1 A)?

A: The BYM11 series is optimized for fast recovery characteristics (≤500ns) compared to standard recovery (>500ns). The higher forward voltage is a characteristic of this technology optimization. Use the BYM11 variant only in applications requiring faster switching performance. For standard switching applications, the 1N6484 or BYM10 series are preferred.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity rating, matching the environmental compliance profile of the original LL4007G L0. All parts are suitable for applications with RoHS3 compliance requirements.

Q: What is the difference between standard and avalanche technology diodes?

A: Standard technology diodes (1N6484, BYM11) conduct in forward bias and block in reverse bias with specified leakage current. Avalanche technology diodes (BYM10) additionally provide controlled breakdown at the reverse voltage rating, offering protection against transient overvoltages. Both technologies maintain the same voltage and current ratings. Avalanche diodes are preferred in applications with potential voltage transients.

Q: Can I use the BYM11-1000-E3/96 in place of the 1N6484 series?

A: The BYM11-1000-E3/96 is electrically compatible but has different performance characteristics: higher forward voltage (1.3 V versus 1.1 V @ 1 A), fast recovery (≤500ns versus >500ns), and higher capacitance (15pF versus 8pF @ 4V, 1MHz). Use the BYM11 only if your circuit design specifically requires these characteristics. For general replacement, the 1N6484 series is preferred.

Q: What inventory levels are available for each substitute part?

A: Inventory availability varies by part number. The 1N6484-E3/96 has 2040 units in stock, BYM10-1000-E3/96 has 1660 units, and BYM11-1000-E3/96 has 1305 units. Consult current inventory systems for real-time availability, as stock levels change with production and sales activity.

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