DSA20C100PB Equivalent & Substitute Parts

Part Overview

The DSA20C100PB is an IXYS Schottky diode array in a 1 Pair Common Cathode configuration rated for 100 V DC reverse voltage and 10 A average rectified current per diode. The device is packaged in a Through Hole TO-220-3 case and is currently Active in product status. This part is suitable for fast recovery rectification applications requiring low forward voltage drop and rapid switching characteristics. Equivalent and substitute parts are identified based on matching electrical specifications and mechanical compatibility within the Schottky diode array category.

Key Parameters

Parameter	Value	Unit
Diode Configuration	1 Pair Common Cathode	—
Technology	Schottky	—
Voltage - DC Reverse (Vr) (Max)	100	V
Current - Average Rectified (Io) (per Diode)	10	A
Voltage - Forward (Vf) (Max) @ If	900 mV @ 10 A	—
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Current - Reverse Leakage @ Vr	200	nA @ 100 V
Operating Temperature - Junction	−55 to 175	°C
Mounting Type	Through Hole	—
Package / Case	TO-220-3	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the DSA20C100PB is determined by the following critical parameters:

Primary Matching Criteria:

Diode Configuration: 1 Pair Common Cathode
Technology: Schottky
Voltage - DC Reverse (Vr) (Max): 100 V
Current - Average Rectified (Io) (per Diode): 10 A
Mounting Type: Through Hole
Package / Case: TO-220-3 or compatible variant (TO-220AB)

Secondary Compatibility Factors:

Voltage - Forward (Vf) (Max): Acceptable range 840 mV to 950 mV @ rated current
Speed: Fast Recovery ≤ 500ns, > 200mA (Io)
Operating Temperature - Junction: Minimum −55°C, Maximum 150°C or higher
RoHS Status: ROHS3 Compliant

Substitute parts are grouped into two categories:

Category A - Direct Equivalents (10 A rated current): Parts with identical 10 A current rating and 100 V voltage rating, maintaining full electrical compatibility with the DSA20C100PB.

Category B - Functional Alternatives (Current rating variance): Parts with 100 V voltage rating but different current ratings (5 A, 8 A, 15 A, 20 A). These are suitable for applications where the actual operating current is lower than the DSA20C100PB rating or where higher current capability is required.

Parameter Comparison

Part Number	Manufacturer	Vr (Max) [V]	Io (per Diode) [A]	Vf (Max) [mV]	Vf Test Condition	Reverse Leakage @ Vr	Tj (Min-Max) [°C]	Package	Product Status
DSA20C100PB	IXYS	100	10	900	@ 10 A	200 nA @ 100 V	−55 to 175	TO-220-3	Active
FYP1010DNTU	onsemi	100	10	950	@ 10 A	1 mA @ 100 V	−65 to 150	TO-220-3	Obsolete
MBR10100CT	Taiwan Semiconductor Corporation	100	10	950	@ 10 A	100 µA @ 100 V	−55 to 150	TO-220-3	Discontinued at DiGi Electronics
MBR10100CT-BP	Micro Commercial Co	100	10	850	@ 5 A	200 µA @ 100 V	−55 to 150	TO-220-3	Active
MBR10100CT-G1	Diodes Incorporated	100	5	840	@ 5 A	50 µA @ 100 V	−55 to 150	TO-220-3	Active
MBR16100CTG	onsemi	100	8	740	@ 8 A	100 µA @ 100 V	−65 to 175	TO-220-3	Obsolete
MBR20100CT-BP	Micro Commercial Co	100	10	950	@ 20 A	150 µA @ 100 V	−55 to 150	TO-220-3	Active
MBR20100CT-G1	Diodes Incorporated	100	10	840	@ 10 A	50 µA @ 100 V	−55 to 175	TO-220-3	Active
MBR30100CT-G1	Diodes Incorporated	100	15	850	@ 15 A	100 µA @ 100 V	−55 to 150	TO-220-3	Active
MBR30H100CTG	onsemi	100	15	800	@ 15 A	4.5 µA @ 100 V	−55 to 175	TO-220-3	Active
MBR41H100CTG	onsemi	100	20	800	@ 20 A	10 µA @ 100 V	−55 to 175	TO-220-3	Active

Engineering Selection Recommendations

For Direct Replacement (10 A Rated Current):

The MBR20100CT-G1 (Diodes Incorporated) is the recommended direct substitute for the DSA20C100PB. This part maintains the 10 A current rating and 100 V voltage rating with Active product status. The MBR20100CT-G1 offers an extended operating temperature range (−55°C to 175°C) matching the DSA20C100PB and includes AEC-Q101 automotive qualification. Forward voltage is 840 mV @ 10 A, which is lower than the DSA20C100PB specification of 900 mV @ 10 A, providing improved efficiency characteristics.

The MBR10100CT-BP (Micro Commercial Co) is an alternative direct substitute with Active status. This part maintains 10 A rating and 100 V voltage rating with identical temperature range (−55°C to 150°C). Forward voltage specification is 850 mV @ 5 A, which is lower than the DSA20C100PB.

For Applications with Lower Current Requirements (5 A Rated Current):

The MBR10100CT-G1 (Diodes Incorporated) is suitable for applications where the actual operating current does not exceed 5 A. This part is Active with AEC-Q101 automotive qualification and offers superior reverse leakage characteristics (50 µA @ 100 V compared to 200 nA @ 100 V for the DSA20C100PB).

For Applications with Higher Current Requirements (15 A or 20 A Rated Current):

The MBR30H100CTG (onsemi) provides 15 A rated current with Active status and extended temperature range (−55°C to 175°C). This part exhibits superior reverse leakage (4.5 µA @ 100 V) and lower forward voltage (800 mV @ 15 A).

The MBR41H100CTG (onsemi) provides 20 A rated current with Active status and extended temperature range (−55°C to 175°C). This part offers the lowest forward voltage (800 mV @ 20 A) and lowest reverse leakage (10 µA @ 100 V) among all listed substitutes.

Parts to Avoid:

FYP1010DNTU (onsemi) and MBR16100CTG (onsemi) are listed as Obsolete and should not be selected for new designs.

MBR10100CT (Taiwan Semiconductor Corporation) is Discontinued at DiGi Electronics and should not be selected for new designs.

All recommended substitutes are ROHS3 Compliant and REACH Unaffected, matching the compliance status of the DSA20C100PB.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with a lower current rating than the DSA20C100PB?

A: Yes, if your application's actual operating current is lower than the substitute part's rating. For example, if your circuit operates at 5 A or less, the MBR10100CT-G1 (5 A rated) is suitable. However, the part must still meet the voltage and configuration requirements. Do not use a lower-rated part if your application requires the full 10 A capability.

Q: What is the difference between TO-220-3 and TO-220AB packaging?

A: Both TO-220-3 and TO-220AB are Through Hole packages with identical pin configurations and mechanical compatibility. The designations refer to supplier-specific package naming conventions. Parts specified as TO-220AB are mechanically and electrically compatible with TO-220-3 applications.

Q: Why do some substitute parts have higher forward voltage than the DSA20C100PB?

A: Forward voltage varies based on the specific semiconductor junction design and current rating. The FYP1010DNTU and MBR20100CT-BP specify 950 mV forward voltage, which is 50 mV higher than the DSA20C100PB. This difference is within normal manufacturing variation for Schottky diodes and does not prevent substitution if other parameters match.

Q: Are all substitute parts suitable for automotive applications?

A: Only parts with AEC-Q101 qualification are suitable for automotive applications. The MBR10100CT-G1, MBR20100CT-G1, and MBR30100CT-G1 carry AEC-Q101 qualification. Other parts are suitable for industrial and commercial applications.

Q: What does "Obsolete" or "Discontinued at DiGi Electronics" product status mean?

A: Obsolete parts are no longer manufactured by the supplier. Discontinued at DiGi Electronics means the distributor no longer stocks the part, though it may be available from other sources. For new designs, select only Active status parts to ensure long-term availability and supply chain stability.

Q: Can I substitute a part with a higher current rating?

A: Yes. A part with a higher current rating (such as MBR30H100CTG at 15 A or MBR41H100CTG at 20 A) can be used in place of the DSA20C100PB (10 A). The higher-rated part will handle the same 10 A current with additional thermal margin. Verify that the package dimensions and pin configuration remain compatible with your PCB layout.

Q: What is the significance of reverse leakage current differences?

A: Reverse leakage current affects power dissipation and circuit performance at high temperatures. The DSA20C100PB specifies 200 nA @ 100 V, while some substitutes specify higher values (up to 1 mA for FYP1010DNTU). Lower reverse leakage is generally preferable for low-power applications. Select based on your circuit's sensitivity to leakage current.

Q: Why is the operating temperature range different between parts?

A: Operating temperature range depends on the semiconductor design and packaging. The DSA20C100PB supports −55°C to 175°C, while some substitutes support only −55°C to 150°C. For applications requiring operation above 150°C, select parts with extended temperature range such as MBR20100CT-G1, MBR30H100CTG, or MBR41H100CTG.

Q: Are all listed parts RoHS3 compliant?

A: Yes. All substitute parts listed in this document are ROHS3 Compliant and REACH Unaffected, matching the compliance status of the DSA20C100PB.

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