MBR1660 Equivalent & Substitute Parts

Part Overview

The MBR1660 is a Schottky rectifier diode rated for 60 V DC reverse voltage and 16 A average rectified current in a through-hole TO-220-2 package. This component is classified as "Not For New Designs" by the manufacturer onsemi, indicating it has reached end-of-life status. Identifying equivalent and substitute parts is necessary for ongoing maintenance, repair, and legacy system support where the original component is no longer readily available or where design flexibility permits alternative solutions.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	60	V
Current - Average Rectified (Io)	16	A
Voltage - Forward (Vf) (Max) @ If	750 mV @ 16 A	mV
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	ns
Current - Reverse Leakage @ Vr	1	mA @ 60 V
Mounting Type	Through Hole	—
Package / Case	TO-220-2	—
Operating Temperature - Junction	-65 to 150	°C
Technology	Schottky	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the MBR1660 is determined by the following critical electrical and mechanical parameters:

Direct Equivalent Criteria:

Voltage - DC Reverse (Vr) (Max): 60 V minimum
Current - Average Rectified (Io): 16 A minimum
Voltage - Forward (Vf) (Max) @ If: 750 mV or lower at rated current
Technology: Schottky
Mounting Type: Through Hole
Package compatibility: TO-220 family

Similar/Partial Substitute Criteria:

Voltage - DC Reverse (Vr) (Max): 45 V or higher (application-dependent derating)
Current - Average Rectified (Io): 10 A or higher (application-dependent derating)
Technology: Schottky
Mounting Type: Through Hole or Surface Mount (with design modification)
Package: TO-220 variants or alternative high-current packages

The MBR1660-E3/45 qualifies as a direct equivalent with identical electrical ratings but differs in package configuration (TO-220-3 vs. TO-220-2) and product status (Active vs. Not For New Designs). The DSS10-0045B and DSS10-01AS-TRL are classified as similar substitutes due to reduced voltage and/or current ratings, requiring application-level verification of derating acceptability.

Parameter Comparison

Parameter	MBR1660	MBR1660-E3/45	DSS10-0045B	DSS10-01AS-TRL
Manufacturer	onsemi	Vishay General Semiconductor - Diodes Division	IXYS	IXYS
Voltage - DC Reverse (Vr) (Max)	60 V	60 V	45 V	100 V
Current - Average Rectified (Io)	16 A	16 A	10 A	10 A
Voltage - Forward (Vf) (Max) @ If	750 mV @ 16 A	750 mV @ 16 A	510 mV @ 10 A	840 mV @ 10 A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr	1 mA @ 60 V	1 mA @ 60 V	5 mA @ 45 V	300 µA @ 100 V
Mounting Type	Through Hole	Through Hole	Through Hole	Surface Mount
Package / Case	TO-220-2	TO-220-3	TO-220-2	TO-263-3, D2PAK (2 Leads + Tab)
Operating Temperature - Junction	-65 to 150 °C	-65 to 150 °C	-55 to 150 °C	-55 to 175 °C
Product Status	Not For New Designs	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

MBR1660-E3/45 (Direct Equivalent)

The MBR1660-E3/45 from Vishay General Semiconductor - Diodes Division is the primary direct equivalent. It maintains identical electrical specifications: 60 V reverse voltage, 16 A average rectified current, and 750 mV forward voltage at rated current. The package differs only in lead configuration (TO-220-3 vs. TO-220-2), which may require PCB layout modification but does not affect electrical performance. The MBR1660-E3/45 carries Active product status, ensuring continued availability and supply chain support. Both parts are ROHS3 Compliant and REACH Unaffected, meeting current regulatory requirements.

DSS10-0045B (Similar Substitute - Reduced Ratings)

The DSS10-0045B from IXYS is a similar substitute with reduced electrical ratings: 45 V reverse voltage and 10 A average rectified current. This part is suitable only for applications where the MBR1660 operates below these reduced limits. The forward voltage is lower (510 mV @ 10 A), which may provide thermal benefits in current-limited applications. The package remains TO-220-2 compatible. Product status is Active. This substitute requires application-level verification that the 45 V and 10 A limits do not exceed circuit requirements.

DSS10-01AS-TRL (Similar Substitute - Different Package and Voltage)

The DSS10-01AS-TRL from IXYS is a similar substitute with higher reverse voltage (100 V) but reduced current rating (10 A). This part is packaged in TO-263-3 (D2PAK), a surface-mount configuration requiring PCB redesign. The higher voltage rating provides margin in high-voltage applications, while the reduced current rating necessitates application verification. Operating temperature range extends to 175 °C. Product status is Active. This substitute is applicable only where surface-mount technology and reduced current are acceptable.

All substitute parts maintain Schottky technology, fast recovery characteristics, and regulatory compliance with the original MBR1660.

Frequently Asked Questions (FAQ)

Q: Can the MBR1660-E3/45 be used as a direct replacement for the MBR1660?

A: The MBR1660-E3/45 is electrically equivalent with identical voltage and current ratings. The primary difference is the package configuration: TO-220-3 versus TO-220-2. PCB layout modification may be required to accommodate the different lead arrangement, but electrical performance is equivalent.

Q: What is the difference between TO-220-2 and TO-220-3 packages?

A: TO-220-2 packages have two leads plus a mounting tab, while TO-220-3 packages have three leads plus a mounting tab. The additional lead in TO-220-3 may provide different electrical connectivity options. Physical dimensions and thermal characteristics differ slightly. Verify PCB footprint compatibility before substitution.

Q: Can the DSS10-0045B replace the MBR1660 in all applications?

A: The DSS10-0045B has reduced ratings: 45 V reverse voltage and 10 A average rectified current compared to the MBR1660's 60 V and 16 A. This substitute is suitable only for applications where circuit voltages remain below 45 V and currents remain below 10 A. Applications requiring the full 60 V or 16 A ratings cannot use this substitute.

Q: Why is the DSS10-01AS-TRL listed as a substitute if it is surface-mount?

A: The DSS10-01AS-TRL is included as a similar substitute for applications where PCB redesign to surface-mount technology is feasible. It offers higher voltage rating (100 V) and extended operating temperature range (to 175 °C), which may benefit certain applications. However, it requires design modification and is not a direct pin-compatible replacement.

Q: What does "Not For New Designs" mean for the MBR1660?

A: "Not For New Designs" indicates the MBR1660 has reached end-of-life status and the manufacturer no longer recommends it for new product development. Existing inventory may remain available for legacy system support and repairs. For new designs, the MBR1660-E3/45 or other active-status alternatives are recommended.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. The MBR1660, MBR1660-E3/45, DSS10-0045B, and DSS10-01AS-TRL are all ROHS3 Compliant and REACH Unaffected, meeting current environmental and regulatory requirements.

Q: What is the significance of the forward voltage difference between these diodes?

A: Forward voltage (Vf) affects power dissipation and thermal performance. Lower forward voltage reduces heat generation. The DSS10-0045B has 510 mV @ 10 A, while the MBR1660 has 750 mV @ 16 A. In current-limited applications, the lower forward voltage of the DSS10-0045B may provide thermal benefits, but this does not compensate for reduced current or voltage ratings in applications requiring full MBR1660 specifications.

Q: Can reverse leakage current differences affect circuit performance?

A: Reverse leakage current (Ir) represents the small current flowing through the diode in reverse bias. The MBR1660 and MBR1660-E3/45 both have 1 mA @ 60 V leakage. The DSS10-0045B has 5 mA @ 45 V, and the DSS10-01AS-TRL has 300 µA @ 100 V. Higher leakage may affect precision analog circuits or high-impedance applications. For most power rectification applications, these differences are negligible.

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