SURF1560 Equivalent & Substitute Parts

Part Overview

The SURF1560 is a general-purpose rectifier diode rated for 600 V DC reverse voltage with fast recovery characteristics, packaged in a TO-220-2 isolated tab through-hole configuration. This component is classified as obsolete, which necessitates identification of active equivalent parts to maintain design continuity and ensure supply chain availability. The SURF1560 operates across a junction temperature range of -55°C to 150°C and is suitable for applications requiring fast recovery diode performance in standard rectification circuits.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	600	V
Voltage - Forward (Vf) (Max) @ If	2.4 @ 15 A	V
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Reverse Recovery Time (trr)	50	ns
Current - Reverse Leakage @ Vr	5	µA @ 600 V
Mounting Type	Through Hole	—
Package / Case	TO-220-2 Full Pack, Isolated Tab	—
Operating Temperature - Junction	-55 to 150	°C
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the SURF1560 is determined by equivalence across the following critical parameters:

Electrical Equivalence Criteria:

Voltage - DC Reverse (Vr) (Max): 600 V
Speed Classification: Fast Recovery ≤ 500ns, > 200mA (Io)
Reverse Recovery Time (trr): 50 ns
Operating Temperature - Junction: -55°C to 150°C

Mechanical Equivalence Criteria:

Mounting Type: Through Hole
Package / Case: TO-220-2 Full Pack, Isolated Tab
Supplier Device Package: ITO-220AC

Regulatory & Environmental Equivalence Criteria:

Moisture Sensitivity Level (MSL): 1 (Unlimited)
REACH Status: REACH Affected
ECCN: EAR99
HTSUS: 8541.10.0080

The substitute part SDURF1560 meets all equivalence criteria and is classified as active, providing a direct replacement for the obsolete SURF1560.

Parameter Comparison

Parameter	SURF1560	SDURF1560	Unit
Manufacturer	SMC Diode Solutions	SMC Diode Solutions	—
Category	Diodes, Rectifiers	Diodes, Rectifiers	—
Product Status	Obsolete	Active	—
Technology	Standard	Standard	—
Voltage - DC Reverse (Vr) (Max)	600	600	V
Current - Average Rectified (Io)	—	15	A
Voltage - Forward (Vf) (Max) @ If	2.4 @ 15 A	2.03 @ 15 A	V
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Reverse Recovery Time (trr)	50	50	ns
Current - Reverse Leakage @ Vr	5 @ 600 V	100 @ 600 V	µA
Mounting Type	Through Hole	Through Hole	—
Package / Case	TO-220-2 Full Pack, Isolated Tab	TO-220-2 Full Pack, Isolated Tab	—
Supplier Device Package	ITO-220AC	ITO-220AC	—
Operating Temperature - Junction	-55 to 150	-55 to 150	°C
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	—
REACH Status	REACH Affected	REACH Affected	—
ECCN	EAR99	EAR99	—
HTSUS	8541.10.0080	8541.10.0080	—

Engineering Selection Recommendations

The SDURF1560 is the manufacturer-recommended substitute for the obsolete SURF1560. Both components are manufactured by SMC Diode Solutions and share identical electrical performance specifications for voltage rating, recovery time, and operating temperature range. Both components maintain the same mechanical form factor (TO-220-2 Full Pack, Isolated Tab) and are classified under identical regulatory frameworks (REACH Affected, EAR99, HTSUS 8541.10.0080).

The SDURF1560 is currently in active production status with 2141 units in stock, whereas the SURF1560 is obsolete. The SDURF1560 carries RoHS3 compliance certification, providing enhanced environmental compliance for new designs. The forward voltage characteristic of the SDURF1560 (2.03 V @ 15 A) is lower than the SURF1560 (2.4 V @ 15 A), resulting in improved thermal efficiency. The reverse leakage current specification of the SDURF1560 (100 µA @ 600 V) is higher than the SURF1560 (5 µA @ 600 V), which remains within acceptable parameters for general-purpose rectification applications.

Frequently Asked Questions (FAQ)

Q: Can the SDURF1560 be used as a direct replacement for the SURF1560 in existing designs?

A: Yes. The SDURF1560 is the manufacturer-recommended substitute and maintains electrical and mechanical equivalence across all critical parameters: 600 V reverse voltage rating, 50 ns reverse recovery time, fast recovery speed classification, TO-220-2 isolated tab package, and -55°C to 150°C operating temperature range.

Q: What are the differences between the SURF1560 and SDURF1560?

A: The primary differences are product status and forward voltage characteristics. The SURF1560 is obsolete; the SDURF1560 is active. The SDURF1560 exhibits lower forward voltage (2.03 V versus 2.4 V at 15 A) and higher reverse leakage current (100 µA versus 5 µA at 600 V). The SDURF1560 includes RoHS3 compliance certification.

Q: Are the package configurations identical?

A: Yes. Both components use the TO-220-2 Full Pack with isolated tab configuration and are supplied in the ITO-220AC package format. Both are through-hole mounted components suitable for identical PCB layouts.

Q: What is the inventory status for the SDURF1560?

A: The SDURF1560 has 2141 units in stock as new original components, compared to 756 units for the obsolete SURF1560.

Q: Do both parts meet the same regulatory requirements?

A: Yes. Both components are REACH Affected, classified under ECCN EAR99, and assigned HTSUS code 8541.10.0080. The SDURF1560 additionally carries RoHS3 compliance certification.

Q: What is the moisture sensitivity level for these components?

A: Both the SURF1560 and SDURF1560 are classified as MSL 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.

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