MBRF20H150CTG Equivalent & Substitute Parts

Part Overview

The MBRF20H150CTG is a Schottky diode array manufactured by onsemi, configured as 1 pair common cathode with 150 V DC reverse voltage rating and 10 A average rectified current per diode. The device is packaged in TO-220-3 Full Pack through-hole configuration and operates across a junction temperature range of -20°C to 150°C. This part carries Last Time Buy status, indicating discontinued production. Identification of equivalent and substitute components is necessary to ensure design continuity and procurement availability for new production runs and field replacements.

Key Parameters

Parameter	Value	Unit
Diode Configuration	1 Pair Common Cathode	-
Technology	Schottky	-
Voltage - DC Reverse (Vr) (Max)	150	V
Current - Average Rectified (Io) (per Diode)	10	A
Voltage - Forward (Vf) (Max) @ If	680 mV @ 10 A	-
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	-
Current - Reverse Leakage @ Vr	50	µA @ 150 V
Operating Temperature - Junction	-20 to 150	°C
Mounting Type	Through Hole	-
Package / Case	TO-220-3 Full Pack	-
RoHS Status	ROHS3 Compliant	-

Substitute Part Grouping Explanation

Substitution of the MBRF20H150CTG is determined by strict equivalence across the following critical parameters:

Primary Substitution Criteria:

Diode configuration: 1 Pair Common Cathode
Technology: Schottky or Super Barrier (functionally compatible fast-recovery rectifier technology)
Voltage - DC Reverse (Vr) (Max): 150 V minimum
Current - Average Rectified (Io) (per Diode): 10 A minimum
Speed: Fast Recovery ≤ 500ns, > 200mA (Io)
Mounting Type: Through Hole
Package / Case: TO-220-3 Full Pack or TO-220-3 Full Pack with Isolated Tab

Secondary Compatibility Factors:

Operating Temperature - Junction: Must accommodate application requirements
RoHS Status: ROHS3 Compliant
Voltage - Forward (Vf) (Max) @ If: Acceptable variance within circuit design margins
Current - Reverse Leakage @ Vr: Acceptable variance within circuit design margins

Parts are grouped as direct substitutes when all primary criteria are met. Parts with higher voltage ratings (170 V) or higher current ratings (20 A) are classified as similar substitutes suitable for applications with design margin requirements.

Parameter Comparison

Part Number	Manufacturer	Vr (Max) [V]	Io (per Diode) [A]	Vf (Max) @ If [mV]	Ir @ Vr [µA]	Tj (Min-Max) [°C]	Package	Status
MBRF20H150CTG	onsemi	150	10	680 @ 10 A	50 @ 150 V	-20 to 150	TO-220-3 Full Pack	Last Time Buy
MBRF20150CT	Taiwan Semiconductor Corporation	150	20	1050 @ 20 A	100 @ 150 V	-55 to 150	TO-220-3 Full Pack, Isolated Tab	Active
SBRF20150CT	SMC Diode Solutions	150	-	930 @ 150 A	1000 @ 150 V	-55 to 200	TO-220-3 Full Pack, Isolated Tab	Active
SBR20150CTFP	Diodes Incorporated	150	10	880 @ 10 A	100 @ 150 V	-65 to 175	TO-220-3 Full Pack, Isolated Tab	Active
SBR20U150CTFP	Diodes Incorporated	150	10	780 @ 10 A	500 @ 150 V	-65 to 175	TO-220-3 Full Pack, Isolated Tab	Active
STPS20150CFP	STMicroelectronics	150	10	920 @ 10 A	5 @ 150 V	-40 to 175	TO-220-3 Full Pack	Active
STPS20170CFP	STMicroelectronics	170	10	900 @ 10 A	15 @ 170 V	-40 to 175	TO-220-3 Full Pack	Active
VF20150C-M3/4W	Vishay General Semiconductor - Diodes Division	150	10	1200 @ 10 A	150 @ 150 V	-55 to 150	TO-220-3 Full Pack, Isolated Tab	Active

Engineering Selection Recommendations

Direct Substitutes (Active Status, Equivalent Electrical Performance):

SBR20U150CTFP and SBR20150CTFP from Diodes Incorporated are direct functional substitutes. Both maintain 150 V reverse voltage and 10 A current ratings with TO-220-3 Full Pack packaging. SBR20U150CTFP offers superior forward voltage characteristics (780 mV @ 10 A) compared to the original part (680 mV @ 10 A), providing lower power dissipation. Both parts are ROHS3 compliant and REACH unaffected. Operating temperature range extends to -65°C to 175°C, exceeding the original specification.

STPS20150CFP from STMicroelectronics provides electrical equivalence with 150 V reverse voltage and 10 A current rating in TO-220-3 Full Pack configuration. Forward voltage is 920 mV @ 10 A. Reverse leakage current is significantly lower at 5 µA @ 150 V. ROHS3 compliant and REACH unaffected. This part is suitable for applications requiring minimal leakage current.

Higher Current Rating Substitute (Design Margin Applications):

MBRF20150CT from Taiwan Semiconductor Corporation provides 20 A current rating with 150 V reverse voltage, offering increased design margin for applications with potential current surges. Forward voltage is 1050 mV @ 20 A. Packaged in TO-220-3 Full Pack with isolated tab. ROHS3 compliant and REACH unaffected. Active production status ensures long-term availability.

Higher Voltage Rating Substitute (Design Margin Applications):

STPS20170CFP from STMicroelectronics provides 170 V reverse voltage with 10 A current rating, suitable for applications requiring voltage margin above 150 V. Forward voltage is 900 mV @ 10 A. Packaged in TO-220-3 Full Pack. ROHS3 compliant and REACH unaffected. Active production status.

Not Recommended:

MBRF20150CTL from Diodes Incorporated carries Obsolete product status and REACH Affected compliance, making it unsuitable for new designs or long-term procurement.

VF20150C-M3/4W from Vishay exhibits higher forward voltage (1200 mV @ 10 A) compared to the original part, resulting in increased power dissipation and thermal load. Selection should be limited to applications where this characteristic is acceptable.

Frequently Asked Questions (FAQ)

Q: Can STPS20170CFP be used as a direct replacement for MBRF20H150CTG?

A: STPS20170CFP is a suitable substitute with higher voltage rating (170 V vs. 150 V). The increased voltage rating provides design margin and does not compromise circuit function in applications designed for 150 V operation. Electrical characteristics including current rating (10 A), diode configuration (1 pair common cathode), and packaging (TO-220-3 Full Pack) are equivalent. This part is classified as a similar substitute rather than a direct equivalent due to the voltage difference.

Q: What is the difference between TO-220-3 Full Pack and TO-220-3 Full Pack with Isolated Tab?

A: Both packages are through-hole mounted in TO-220-3 configuration. The isolated tab variant includes electrical isolation between the mounting tab and the diode circuit, preventing direct thermal coupling to ground planes through the tab. The standard TO-220-3 Full Pack does not provide this isolation. Selection depends on thermal management and circuit isolation requirements. Both packages are mechanically compatible with standard TO-220 mounting hardware.

Q: Why does SBR20U150CTFP have lower forward voltage than the original MBRF20H150CTG?

A: Forward voltage variation (780 mV vs. 680 mV @ 10 A) reflects differences in semiconductor material and junction design between manufacturers. Both values fall within acceptable operating ranges for Schottky and Super Barrier diode technologies. Lower forward voltage in SBR20U150CTFP results in reduced power dissipation and improved thermal performance. This characteristic is advantageous in most applications.

Q: Is MBRF20150CT from Taiwan Semiconductor Corporation a direct substitute?

A: MBRF20150CT is a functional substitute with higher current rating (20 A vs. 10 A per diode). The 150 V reverse voltage rating, 1 pair common cathode configuration, and TO-220-3 Full Pack packaging with isolated tab are equivalent to the original part. The higher current rating provides design margin and does not prevent use in 10 A applications. This part is classified as a direct substitute suitable for applications requiring equivalent or higher current capacity.

Q: What compliance certifications should be verified for substitute parts?

A: All recommended substitute parts carry ROHS3 compliance and REACH unaffected status, matching the original MBRF20H150CTG. These certifications ensure environmental and regulatory compliance for industrial and commercial applications. Verify compliance documentation with the component supplier for specific application requirements and regional regulations.

Q: Can parts with different reverse leakage current specifications be interchanged?

A: Reverse leakage current variation (50 µA to 1000 µA @ 150 V across the substitute list) reflects manufacturing differences and junction design. Selection depends on circuit sensitivity to leakage current. Applications with high-impedance input stages or precision analog circuits may require lower leakage specifications. STPS20150CFP (5 µA @ 150 V) is suitable for leakage-sensitive applications. SBRF20150CT (1000 µA @ 150 V) is acceptable for general rectification applications where leakage current is not a limiting factor.

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

A: The original MBRF20H150CTG operates from -20°C to 150°C. Most substitute parts extend the lower temperature limit to -55°C or -65°C and upper limit to 175°C or 200°C. Extended temperature ranges provide design margin for applications operating in extreme environments. Selection should match application temperature requirements. Parts with narrower temperature ranges are acceptable if application conditions remain within specified limits.

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