DF1506S-G Bridge Rectifier Single Phase 600V 1.5A Equivalent & Substitute Parts

Part Overview

The DF1506S-G is a single-phase bridge rectifier diode manufactured by Comchip Technology, rated for 600V peak reverse voltage and 1.5A average rectified current. This component is classified as Active product status and is ROHS3 compliant. Bridge rectifier diodes are essential in power conversion circuits for converting AC to DC. Equivalent and substitute parts are identified based on matching electrical specifications, mechanical compatibility, and regulatory compliance to ensure seamless integration in circuit designs.

Key Parameters

Parameter	Value
Diode Type	Single Phase
Technology	Standard
Voltage - Peak Reverse (Max)	600 V
Current - Average Rectified (Io)	1.5 A
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 1.5 A
Current - Reverse Leakage @ Vr	10 µA @ 600 V
Operating Temperature Range	-55°C ~ 150°C (TJ)
Mounting Type	Surface Mount
Package / Case	4-SMD, Gull Wing
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the DF1506S-G are categorized based on strict electrical and mechanical parameter matching:

Direct Substitutes (Identical Electrical Specifications): Parts matching all critical parameters: 600V peak reverse voltage, 1.5A average rectified current, 1.1V forward voltage @ 1.5A, 10µA reverse leakage @ 600V, 4-SMD Gull Wing package, and Surface Mount mounting type. These parts differ only in packaging format (Tube, Tape & Reel, Bulk, Cut Tape) and operating temperature range variations (-55°C to -65°C minimum). Direct substitutes include SDB155-TP, DF1506S, DF1506S-T, and DF1506S-E3/45.

Upgrade Substitutes (Extended Temperature Range): Parts with identical electrical specifications but extended operating temperature range (-65°C minimum instead of -55°C), providing enhanced performance in extreme temperature environments. These include DF1506S and DF1506S-T from Diodes Incorporated.

Downrated Substitutes (Reduced Current Rating): Parts with matching 600V peak reverse voltage and identical forward voltage characteristics but reduced average rectified current rating of 1A instead of 1.5A. These parts are suitable for applications with lower current requirements. Downrated substitutes include DF06S, DF06S-T, and SDB105-TP.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Voltage - Peak Reverse (Max)	Current - Average Rectified (Io)	Voltage - Forward (Vf) (Max) @ If	Current - Reverse Leakage @ Vr	Operating Temperature	Package / Case	Packaging Format	RoHS Status
DF1506S-G	Comchip Technology	600 V	1.5 A	1.1 V @ 1.5 A	10 µA @ 600 V	-55°C ~ 150°C	4-SMD, Gull Wing	Tube	ROHS3 Compliant
SDB155-TP	Micro Commercial Co	600 V	1.5 A	1.1 V @ 1.5 A	10 µA @ 600 V	-55°C ~ 150°C	4-SMD, Gull Wing	Tape & Reel (TR)	ROHS3 Compliant
DF1506S	Diodes Incorporated	600 V	1.5 A	1.1 V @ 1.5 A	10 µA @ 600 V	-65°C ~ 150°C	4-SMD, Gull Wing	Bulk	ROHS3 Compliant
DF1506S-T	Diodes Incorporated	600 V	1.5 A	1.1 V @ 1.5 A	10 µA @ 600 V	-65°C ~ 150°C	4-SMD, Gull Wing	Cut Tape (CT) & Digi-Reel®	ROHS3 Compliant
DF06S	Fairchild Semiconductor	600 V	1 A	1.1 V @ 1 A	10 µA @ 600 V	-65°C ~ 150°C	4-SMD, Gull Wing	-	Not specified
DF06S-T	Diodes Incorporated	600 V	1 A	1.1 V @ 1 A	10 µA @ 600 V	-65°C ~ 150°C	4-SMD, Gull Wing	Cut Tape (CT) & Digi-Reel®	ROHS3 Compliant
SDB105-TP	Micro Commercial Co	600 V	1 A	1.1 V @ 1 A	10 µA @ 600 V	-55°C ~ 150°C	4-SMD, Gull Wing	Tape & Reel (TR)	ROHS3 Compliant
DF1506S-E3/45	Vishay General Semiconductor - Diodes Division	600 V	1.5 A	1.1 V @ 1.5 A	10 µA @ 600 V	-55°C ~ 150°C	4-SMD, Gull Wing	Tube	ROHS3 Compliant

Engineering Selection Recommendations

For Direct Replacement (Identical Current Rating): SDB155-TP, DF1506S, DF1506S-T, and DF1506S-E3/45 are electrically and mechanically equivalent to DF1506S-G. Selection among these depends on packaging format requirements: Tape & Reel for automated assembly (SDB155-TP), Bulk for high-volume procurement (DF1506S), Cut Tape for mixed-volume applications (DF1506S-T), or Tube for manual assembly (DF1506S-E3/45). All are ROHS3 compliant with MSL 1 rating.

For Extended Temperature Applications: DF1506S and DF1506S-T from Diodes Incorporated provide -65°C minimum operating temperature compared to -55°C for the original part, suitable for applications requiring enhanced low-temperature performance while maintaining 1.5A current rating.

For Reduced Current Applications: DF06S, DF06S-T, and SDB105-TP are suitable substitutes when circuit design permits 1A average rectified current instead of 1.5A. These parts maintain identical 600V voltage rating and forward voltage characteristics. DF06S-T and SDB105-TP are ROHS3 compliant; DF06S compliance status is not specified in available data.

Compliance Considerations: All recommended direct substitutes maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, ensuring compatibility with standard manufacturing and storage processes. REACH status is Unaffected for all parts with specified data.

Frequently Asked Questions (FAQ)

Q: Can SDB155-TP replace DF1506S-G directly in production? A: Yes. SDB155-TP is electrically and mechanically identical to DF1506S-G, differing only in packaging format (Tape & Reel vs. Tube). Both are rated 600V, 1.5A, with identical forward voltage and reverse leakage specifications. Packaging selection depends on assembly process requirements.

Q: What is the difference between DF1506S and DF1506S-T? A: Both parts are manufactured by Diodes Incorporated with identical electrical specifications (600V, 1.5A). The difference is packaging format: DF1506S is supplied in Bulk, while DF1506S-T is supplied in Cut Tape & Digi-Reel format. Both support extended operating temperature range (-65°C to 150°C).

Q: Can DF06S-T be used instead of DF1506S-G? A: DF06S-T is a downrated substitute with 1A average rectified current instead of 1.5A. It is suitable only if circuit design permits reduced current capacity. Voltage rating (600V) and forward voltage characteristics (1.1V @ 1A) remain compatible. Verify application current requirements before substitution.

Q: Are all substitute parts ROHS3 compliant? A: All substitute parts with specified RoHS status are ROHS3 compliant. DF06S (Fairchild Semiconductor) does not have RoHS status specified in available data; verify compliance with manufacturer before use in regulated applications.

Q: What does MSL 1 (Unlimited) mean for these bridge rectifiers? A: MSL 1 indicates Moisture Sensitivity Level 1, the lowest moisture sensitivity classification. These parts have unlimited shelf life under standard storage conditions and do not require special moisture-control handling during manufacturing or storage.

Q: Can I mix different manufacturers' parts in the same circuit board? A: Yes. All substitute parts meet identical electrical and mechanical specifications for the 600V, 1.5A category. Mixing manufacturers is acceptable from an electrical standpoint; however, verify procurement, traceability, and quality assurance requirements with your supply chain management process.

Q: What is the significance of the package code (DFS vs. SDB-1 vs. DF-S)? A: Package codes identify the physical form factor and supplier designation. DFS, SDB-1, and DF-S all refer to the same 4-SMD Gull Wing surface mount package. The different codes reflect manufacturer-specific naming conventions but represent mechanically and electrically compatible packages.

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