DF1502SP-G Bridge Rectifier Equivalent & Substitute Parts

Part Overview

The DF1502SP-G is a single-phase bridge rectifier manufactured by Comchip Technology, rated for 200 V peak reverse voltage and 1.5 A average rectified current. This component is classified as obsolete, necessitating identification of active equivalent and substitute parts for ongoing design requirements and procurement needs. The part is packaged in a 4-SMD Gull Wing surface mount configuration with DFS supplier device package designation.

Key Parameters

Parameter	Value
Diode Type	Single Phase
Technology	Standard
Voltage - Peak Reverse (Max)	200 V
Current - Average Rectified (Io)	1.5 A
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 1.5 A
Operating Temperature Range	-55°C ~ 150°C (TJ)
Mounting Type	Surface Mount
Package / Case	4-SMD, Gull Wing

Substitute Part Grouping Explanation

Substitution eligibility for the DF1502SP-G is determined by strict equivalence across the following critical parameters:

Diode Type: Single Phase
Voltage - Peak Reverse (Max): 200 V
Current - Average Rectified (Io): 1.5 A
Voltage - Forward (Vf) (Max) @ If: 1.1 V @ 1.5 A
Operating Temperature Range: -55°C ~ 150°C (TJ)
Mounting Type: Surface Mount
Package / Case: 4-SMD, Gull Wing

All identified substitute parts meet these electrical and mechanical parameters. Variations in reverse leakage current, product status, manufacturer, and compliance certifications are secondary considerations that do not affect functional interchangeability within the specified parameter envelope.

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	Mounting Type	Package / Case	Product Status
DF1502SP-G	Comchip Technology	200 V	1.5 A	1.1 V @ 1.5 A	5 µA @ 200 V	-55°C ~ 150°C	Surface Mount	4-SMD, Gull Wing	Obsolete
DF1502S-G	Comchip Technology	200 V	1.5 A	1.1 V @ 1.5 A	10 µA @ 200 V	-55°C ~ 150°C	Surface Mount	4-SMD, Gull Wing	Active
DBLS153G C1G	Taiwan Semiconductor Corporation	200 V	1.5 A	1.1 V @ 1.5 A	2 µA @ 200 V	-55°C ~ 150°C	Surface Mount	4-SMD, Gull Wing	Active
DBLS153GHC1G	Taiwan Semiconductor Corporation	200 V	1.5 A	1.1 V @ 1.5 A	2 µA @ 200 V	-55°C ~ 150°C	Surface Mount	4-SMD, Gull Wing	Active
DF1502S-E3/45	Vishay General Semiconductor - Diodes Division	200 V	1.5 A	1.1 V @ 1.5 A	5 µA @ 200 V	-55°C ~ 150°C	Surface Mount	4-SMD, Gull Wing	Active
DFL1502S-E3/45	Vishay General Semiconductor - Diodes Division	200 V	1.5 A	1.1 V @ 1.5 A	5 µA @ 200 V	-55°C ~ 150°C	Surface Mount	4-SMD, Gull Wing	Active

Engineering Selection Recommendations

Primary Recommendation: DF1502S-G

The DF1502S-G is the manufacturer-recommended substitute from Comchip Technology. This part maintains identical electrical specifications to the DF1502SP-G while offering active product status and improved availability. The DF1502S-G is ROHS3 compliant with MSL 1 (Unlimited) rating, supporting long-term supply chain stability.

Alternative Recommendations: Vishay General Semiconductor Parts

The DF1502S-E3/45 and DFL1502S-E3/45 from Vishay General Semiconductor - Diodes Division are parametric equivalents with active product status. Both parts are ROHS3 compliant and REACH unaffected. These options provide additional sourcing flexibility and higher inventory availability (983 and 1025 units respectively).

Cross-Manufacturer Alternative: Taiwan Semiconductor Corporation

The DBLS153G C1G and DBLS153GHC1G from Taiwan Semiconductor Corporation are parametric equivalents meeting all electrical and mechanical requirements. The DBLS153GHC1G variant includes AEC-Q101 automotive qualification, suitable for applications requiring automotive-grade components. Both Taiwan Semiconductor parts demonstrate superior reverse leakage characteristics (2 µA @ 200 V) and are ROHS3 compliant.

Frequently Asked Questions (FAQ)

Q: Can DF1502S-G directly replace DF1502SP-G in existing designs?

A: Yes. The DF1502S-G meets all electrical parameters of the DF1502SP-G, including voltage rating, current rating, forward voltage, and operating temperature range. Both components use identical 4-SMD Gull Wing packaging. The primary difference is product status transition from obsolete to active.

Q: What is the significance of reverse leakage current variations among substitute parts?

A: Reverse leakage current variations (ranging from 2 µA to 10 µA @ 200 V) remain within acceptable operating margins for standard bridge rectifier applications. All listed parts meet the specified 200 V peak reverse voltage requirement. Selection based on leakage characteristics depends on specific application requirements not defined in the core parameter set.

Q: Are Taiwan Semiconductor Corporation parts suitable for all applications requiring DF1502SP-G?

A: The DBLS153G C1G and DBLS153GHC1G meet all electrical and mechanical parameters of the DF1502SP-G. The DBLS153GHC1G includes AEC-Q101 automotive qualification, making it appropriate for automotive applications. Standard industrial applications can use either Taiwan Semiconductor variant.

Q: What packaging considerations apply when substituting these parts?

A: All substitute parts use identical 4-SMD Gull Wing surface mount packaging. No PCB layout modifications are required. Moisture sensitivity level (MSL) is rated 1 (Unlimited) for all active substitute parts, indicating no special storage or handling requirements beyond standard component practices.

Q: Which substitute part offers the best long-term availability?

A: The DF1502S-G from Comchip Technology is the manufacturer-recommended substitute with active product status. Vishay General Semiconductor parts (DF1502S-E3/45 and DFL1502S-E3/45) demonstrate higher current inventory levels (983 and 1025 units respectively), supporting immediate procurement needs.

Q: Are all substitute parts RoHS compliant?

A: All active substitute parts listed are ROHS3 compliant. The obsolete DF1502SP-G does not include RoHS certification data. For applications requiring RoHS compliance, any of the active substitute parts satisfy this requirement.

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