MBR30100CTP Equivalent & Substitute Parts

Part Overview

The MBR30100CTP is a Schottky diode array manufactured by SMC Diode Solutions, configured as a 1 Pair Common Cathode rectifier with a maximum reverse voltage rating of 100 V. The device is packaged in TO-220-3 through-hole format and is currently in active product status with 796 units in stock.

This part is used in applications requiring fast recovery rectification with low forward voltage drop characteristics. Equivalent and substitute parts are identified to provide design flexibility, accommodate supply chain variations, and support applications with differing current or thermal requirements within the same voltage class and package family.

Key Parameters

Parameter	Value	Unit
Diode Configuration	1 Pair Common Cathode	—
Technology	Schottky	—
Voltage - DC Reverse (Vr) (Max)	100	V
Voltage - Forward (Vf) (Max) @ If	850 mV @ 15 A	—
Speed	Fast Recovery ≤ 500 ns, > 200 mA (Io)	—
Current - Reverse Leakage @ Vr	1	mA @ 100 V
Operating Temperature - Junction	−55 to 150	°C
Mounting Type	Through Hole	—
Package / Case	TO-220-3	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the MBR30100CTP is determined by strict adherence to the following electrical and mechanical parameters:

Critical Parameters (Must Match):

Diode Configuration: 1 Pair Common Cathode
Technology: Schottky
Voltage - DC Reverse (Vr) (Max): 100 V
Mounting Type: Through Hole
Package / Case: TO-220-3

Allowable Variation Parameters:

Current - Average Rectified (Io) (per Diode): Substitute parts may have equal or higher current ratings
Voltage - Forward (Vf) (Max) @ If: Substitute parts may have equal or lower forward voltage at rated current
Current - Reverse Leakage @ Vr: Substitute parts may have equal or lower reverse leakage
Operating Temperature - Junction: Substitute parts may have equal or wider temperature range

Substitute parts are grouped into two categories: Similar Substitutes (functionally equivalent with higher current ratings) and Parametric Equivalents (matching the original specifications within tolerance).

Parameter Comparison

Manufacturer Part Number	Manufacturer	Io (per Diode)	Vf (Max) @ If	Ir @ Vr	Tj (Operating Range)	Product Status	Inventory
MBR30100CTP	SMC Diode Solutions	—	850 mV @ 15 A	1 mA @ 100 V	−55 to 150 °C	Active	796 Pcs
MBRP3010NTU	Fairchild Semiconductor	30 A	1.05 V @ 30 A	1 mA @ 100 V	−65 to 150 °C	Active	1330 Pcs
SDT40H100CT	Diodes Incorporated	20 A	700 mV @ 20 A	120 µA @ 100 V	−55 to 150 °C	Active	1720 Pcs
STPS20100CT	STMicroelectronics	10 A	950 mV @ 20 A	150 µA @ 100 V	−55 to 175 °C	Active	1400 Pcs
STPS60H100CT	STMicroelectronics	30 A	840 mV @ 30 A	10 µA @ 100 V	−55 to 175 °C	Active	90300 Pcs
MBR30100CT	Diotec Semiconductor	15 A	850 mV @ 15 A	50 µA @ 100 V	−50 to 175 °C	Active	49417 Pcs
MBR30100CT-G1	Diodes Incorporated	15 A	850 mV @ 15 A	100 µA @ 100 V	−55 to 150 °C	Active	956 Pcs
NTST30100CTG	onsemi	15 A	850 mV @ 15 A	500 µA @ 100 V	−40 to 150 °C	Obsolete	2154 Pcs
NTSV30H100CTG	onsemi	15 A	850 mV @ 15 A	95 µA @ 100 V	−40 to 150 °C	Obsolete	2200 Pcs

Engineering Selection Recommendations

Active Status Substitutes (Recommended for New Designs):

The following parts are in active product status and are suitable for direct substitution or design integration:

MBR30100CT (Diotec Semiconductor): Parametric equivalent with identical electrical specifications at rated current. Extended maximum junction temperature to 175 °C provides thermal margin. Highest inventory availability (49417 units).
MBR30100CT-G1 (Diodes Incorporated): Parametric equivalent with identical forward voltage and current rating. Maintains original operating temperature range. ROHS3 compliant and REACH unaffected.
SDT40H100CT (Diodes Incorporated): Similar substitute with 20 A current rating and superior forward voltage performance (700 mV @ 20 A). Suitable for applications requiring higher current capacity with lower conduction losses.
STPS60H100CT (STMicroelectronics): Similar substitute with 30 A current rating and extended maximum junction temperature to 175 °C. Lowest reverse leakage (10 µA @ 100 V) among all substitutes. Highest inventory availability (90300 units).
STPS20100CT (STMicroelectronics): Similar substitute with 10 A current rating. Extended maximum junction temperature to 175 °C. Suitable for lower-current applications.
MBRP3010NTU (Fairchild Semiconductor): Similar substitute with 30 A current rating and extended minimum junction temperature (−65 °C). Bulk packaging available.

Obsolete Status Parts (Not Recommended for New Designs):

NTST30100CTG (onsemi): Product status is obsolete. Not recommended for new design implementations.
NTSV30H100CTG (onsemi): Product status is obsolete. Not recommended for new design implementations.

Compliance Considerations:

All active status substitutes maintain ROHS3 compliance and EAR99 export classification. MBR30100CT (Diotec) does not carry RoHS status designation; verify compliance requirements for specific applications.

Frequently Asked Questions (FAQ)

Q: Can I substitute the MBR30100CTP with a part having a higher current rating?

A: Yes. Substitute parts with equal or higher average rectified current (Io) ratings are electrically compatible. Higher current ratings provide design margin and do not degrade performance in lower-current applications. The TO-220-3 package accommodates all listed substitutes.

Q: What is the difference between parametric equivalents and similar substitutes?

A: Parametric equivalents (MBR30100CT, MBR30100CT-G1, NTST30100CTG, NTSV30H100CTG) match the original MBR30100CTP specifications within tolerance, including 15 A current rating and 850 mV forward voltage. Similar substitutes (MBRP3010NTU, SDT40H100CT, STPS20100CT, STPS60H100CT) offer higher current ratings or improved electrical characteristics while maintaining the same 100 V reverse voltage and TO-220-3 package.

Q: Are all substitute parts RoHS3 compliant?

A: Most active status substitutes are ROHS3 compliant. MBR30100CT (Diotec Semiconductor) does not carry an explicit RoHS status designation. Verify compliance documentation for specific regulatory requirements.

Q: Can I use an obsolete part as a substitute?

A: Obsolete parts (NTST30100CTG, NTSV30H100CTG) are not recommended for new design implementations. These parts are no longer in active production and may have limited availability or supply continuity issues.

Q: What is the significance of reverse leakage current variation among substitutes?

A: Reverse leakage current (Ir) varies among substitutes from 10 µA to 1 mA at 100 V. Lower reverse leakage reduces standby power dissipation and improves circuit efficiency. STPS60H100CT exhibits the lowest reverse leakage (10 µA), while the original MBR30100CTP specifies 1 mA. Selection depends on application power budget requirements.

Q: Do all substitutes use the same TO-220-3 package?

A: Yes. All listed substitutes use the TO-220-3 through-hole package and are mechanically compatible with the original MBR30100CTP. Supplier device package designations may vary (TO-220-3 or TO-220AB), but physical dimensions and pin configurations are equivalent.

Q: What is the impact of operating temperature range differences?

A: Substitute parts offer extended maximum junction temperature ratings (up to 175 °C for STMicroelectronics and Diotec parts versus 150 °C for the original). Extended temperature ranges provide thermal design margin in high-ambient or high-dissipation applications. Minimum temperature ratings vary from −65 °C to −40 °C; verify compatibility with application requirements.

Q: Which substitute offers the best inventory availability?

A: STPS60H100CT (STMicroelectronics) has the highest inventory availability with 90300 units in stock, followed by MBR30100CT (Diotec Semiconductor) with 49417 units. These parts are suitable for high-volume production requirements.

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