FFB20UP30DNTPTM Equivalent & Substitute Parts

Part Overview

The FFB20UP30DNTPTM is a diode array rectifier manufactured by onsemi, configured as a 1 Pair Common Cathode with 300 V DC reverse voltage rating and 10 A average rectified current per diode. The device is housed in a TO-263-3 D2PAK surface mount package with 2 leads plus tab configuration.

This part is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this diode array configuration.

Key Parameters

Parameter	Value
Diode Configuration	1 Pair Common Cathode
Voltage - DC Reverse (Vr) (Max)	300 V
Current - Average Rectified (Io) (per Diode)	10 A
Voltage - Forward (Vf) (Max) @ If	1.3 V @ 10 A
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)
Reverse Recovery Time (trr)	45 ns
Package / Case	TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
Mounting Type	Surface Mount
Operating Temperature - Junction	-65°C ~ 150°C

Substitute Part Grouping Explanation

Substitute parts for the FFB20UP30DNTPTM are selected based on the following critical parameters that determine functional compatibility:

Primary Compatibility Criteria:

Diode Configuration: 1 Pair Common Cathode (mandatory match)
Voltage - DC Reverse (Vr) (Max): 300 V (mandatory match)
Package / Case: TO-263-3, D2PAK (2 Leads + Tab), TO-263AB (mandatory match)
Mounting Type: Surface Mount (mandatory match)

Secondary Compatibility Criteria:

Current - Average Rectified (Io) (per Diode): Equal to or greater than 10 A
Speed Classification: Fast Recovery ≤ 500ns, > 200mA (Io)
Operating Temperature Range: Minimum -65°C to maximum ≥ 150°C

Substitute parts are grouped into two categories based on current rating alignment:

Category 1 - Direct Current Rating Match (10 A): Parts with identical 10 A current rating provide direct functional equivalence with minimal design impact.

Category 2 - Elevated Current Rating (15 A, 20 A): Parts with higher current ratings provide enhanced performance headroom while maintaining all other critical parameters. These substitutes are suitable for applications where the original 10 A rating is adequate but higher current capability is available.

Parameter Comparison

Parameter	FFB20UP30DNTPTM (Main)	STTH2003CG-TR	VS-20CTH03S-M3	STTH30R03CG-TR	SBR40U300CTB	SBR40U300CTB-13
Manufacturer	onsemi	STMicroelectronics	Vishay General Semiconductor - Diodes Division	STMicroelectronics	Diodes Incorporated	Diodes Incorporated
Diode Configuration	1 Pair Common Cathode	1 Pair Common Cathode	1 Pair Common Cathode	1 Pair Common Cathode	1 Pair Common Cathode	1 Pair Common Cathode
Voltage - DC Reverse (Vr) (Max)	300 V	300 V	300 V	300 V	300 V	300 V
Current - Average Rectified (Io) (per Diode)	10 A	10 A	10 A	15 A	20 A	20 A
Voltage - Forward (Vf) (Max) @ If	1.3 V @ 10 A	1.25 V @ 10 A	1.25 V @ 10 A	1.9 V @ 15 A	920 mV @ 20 A	920 mV @ 20 A
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)
Reverse Recovery Time (trr)	45 ns	35 ns	35 ns	35 ns	50 ns	50 ns
Current - Reverse Leakage @ Vr	1 µA @ 300 V	20 µA @ 300 V	20 µA @ 300 V	20 µA @ 300 V	100 µA @ 300 V	100 µA @ 300 V
Operating Temperature - Junction	-65°C ~ 150°C	175°C (Max)	-65°C ~ 175°C	175°C (Max)	-65°C ~ 175°C	-65°C ~ 175°C
Package / Case	TO-263-3, D2PAK (2 Leads + Tab), TO-263AB	TO-263-3, D2PAK (2 Leads + Tab), TO-263AB	TO-263-3, D2PAK (2 Leads + Tab), TO-263AB	TO-263-3, D2PAK (2 Leads + Tab), TO-263AB	TO-263-3, D2PAK (2 Leads + Tab), TO-263AB	TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Product Status	Obsolete	Active	Active	Active	Active	Active
RoHS Status	Not specified	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Direct Equivalents (10 A Current Rating):

STTH2003CG-TR and VS-20CTH03S-M3 are direct functional equivalents to the FFB20UP30DNTPTM. Both parts maintain the 10 A current rating, 300 V reverse voltage, and TO-263-3 D2PAK package configuration. Both substitute parts are classified as Active products with ROHS3 compliance, ensuring long-term availability and regulatory alignment. STTH2003CG-TR is available in Cut Tape and Digi-Reel packaging, while VS-20CTH03S-M3 is available in Tube packaging. Selection between these two should be based on packaging format requirements and inventory availability.

Enhanced Performance Alternatives (15 A and 20 A Current Ratings):

STTH30R03CG-TR provides a 15 A current rating while maintaining all other critical parameters including 300 V reverse voltage and TO-263-3 D2PAK package. This part is suitable for applications where additional current headroom is beneficial.

SBR40U300CTB and SBR40U300CTB-13 provide the highest current rating at 20 A with 300 V reverse voltage and identical package configuration. These parts utilize Super Barrier technology and are available in Tube (SBR40U300CTB) and Tape & Reel (SBR40U300CTB-13) packaging formats. Both are Active products with ROHS3 compliance.

All substitute parts are classified as Active products, ensuring ongoing manufacturing support and supply chain stability compared to the obsolete FFB20UP30DNTPTM.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with a higher current rating than the original FFB20UP30DNTPTM?

A: Yes. Substitute parts with current ratings of 15 A (STTH30R03CG-TR) or 20 A (SBR40U300CTB, SBR40U300CTB-13) are functionally compatible. Higher current ratings provide additional performance margin without compromising circuit operation. The application circuit will draw only the current it requires, regardless of the device's maximum rating.

Q: Are all substitute parts pin-compatible with the FFB20UP30DNTPTM?

A: Yes. All substitute parts share the identical TO-263-3 D2PAK package configuration with 2 leads plus tab. Pin-to-pin compatibility is maintained across all listed substitutes, allowing direct board-level replacement without layout modifications.

Q: What is the difference between the packaging options for substitute parts?

A: Substitute parts are available in multiple packaging formats: Cut Tape (CT) & Digi-Reel (STTH2003CG-TR), Tube (SBR40U300CTB, VS-20CTH03S-M3), and Tape & Reel (SBR40U300CTB-13, STTH30R03CG-TR). Packaging selection depends on production volume, handling equipment, and inventory management requirements. All packaging formats contain identical electronic components.

Q: How do the forward voltage characteristics compare between substitutes?

A: Forward voltage varies by current rating and technology. At 10 A operation, STTH2003CG-TR and VS-20CTH03S-M3 specify 1.25 V maximum, compared to the original part's 1.3 V maximum. SBR40U300CTB and SBR40U300CTB-13 specify 920 mV at 20 A operation due to Super Barrier technology. STTH30R03CG-TR specifies 1.9 V at 15 A operation. Lower forward voltage reduces power dissipation in the application circuit.

Q: What is the significance of reverse recovery time differences?

A: The FFB20UP30DNTPTM specifies 45 ns reverse recovery time. STTH2003CG-TR, VS-20CTH03S-M3, and STTH30R03CG-TR all specify 35 ns, representing faster switching characteristics. SBR40U300CTB and SBR40U300CTB-13 specify 50 ns. Faster reverse recovery time reduces switching losses and improves efficiency in high-frequency applications. All parts meet the Fast Recovery classification requirement.

Q: Are there compliance or regulatory differences between the main part and substitutes?

A: The FFB20UP30DNTPTM does not specify RoHS status. All substitute parts are ROHS3 compliant, meeting current environmental and regulatory requirements. All parts share identical REACH Unaffected status and EAR99 ECCN classification. All parts carry Moisture Sensitivity Level 1 (Unlimited), indicating no moisture sensitivity precautions are required.

Q: Which substitute part should I select for new designs?

A: For new designs, STTH2003CG-TR or VS-20CTH03S-M3 provide direct functional equivalence with Active product status and ROHS3 compliance. Selection between these two depends on packaging format preference. For applications requiring enhanced current capability, SBR40U300CTB-13 (Tape & Reel format) or STTH30R03CG-TR provide higher current ratings while maintaining all other critical parameters.

Q: What is the operating temperature range difference between the main part and substitutes?

A: The FFB20UP30DNTPTM specifies -65°C to 150°C junction temperature range. STTH2003CG-TR and STTH30R03CG-TR specify 175°C maximum (lower limit not specified). VS-20CTH03S-M3, SBR40U300CTB, and SBR40U300CTB-13 specify -65°C to 175°C, providing extended high-temperature capability. All substitutes meet or exceed the original part's minimum operating temperature requirement of -65°C.

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