SDM1645CS_S2_00001 Equivalent & Substitute Parts

Part Overview

The SDM1645CS_S2_00001 is a Schottky diode array manufactured by Panjit International Inc., configured as a 1 Pair Common Cathode device rated for 45V DC reverse voltage and 8A average rectified current per diode. The component is housed in a TO-252-3 surface mount package (DPAK with 2 Leads + Tab, SC-63 designation).

This part carries an Obsolete product status. Locating equivalent and substitute components is necessary to support ongoing maintenance, repair, and production requirements for legacy systems utilizing this diode array.

Key Parameters

Parameter	Value
Diode Configuration	1 Pair Common Cathode
Technology	Schottky
Voltage - DC Reverse (Vr) (Max)	45 V
Current - Average Rectified (Io) (per Diode)	8 A
Voltage - Forward (Vf) (Max) @ If	540 mV @ 8 A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr	210 µA @ 45 V
Operating Temperature - Junction	-55°C ~ 150°C
Package / Case	TO-252-3, DPAK (2 Leads + Tab), SC-63
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the SDM1645CS_S2_00001 is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

Diode configuration (1 Pair Common Cathode)
Technology type (Schottky)
Maximum reverse voltage rating (45 V)
Average rectified current per diode (8 A)
Forward voltage drop (540 mV @ 8 A)
Reverse leakage current (210 µA @ 45 V)
Recovery speed classification (Fast Recovery ≤ 500ns, > 200mA)

Thermal Parameters:

Operating junction temperature range (-55°C ~ 150°C)

Mechanical Parameters:

Package type (TO-252-3, DPAK with 2 Leads + Tab, SC-63)
Mounting technology (Surface Mount)

Compliance Parameters:

RoHS3 compliance status

Parts meeting all these criteria are classified as parametric equivalents and direct substitutes. The SDM1645CS_L2_00001 satisfies all substitution criteria.

Parameter Comparison

Parameter	SDM1645CS_S2_00001	SDM1645CS_L2_00001	Match
Manufacturer	Panjit International Inc.	Panjit International Inc.	Yes
Category	Diodes, Rectifiers	Diodes, Rectifiers	Yes
Diode Configuration	1 Pair Common Cathode	1 Pair Common Cathode	Yes
Technology	Schottky	Schottky	Yes
Voltage - DC Reverse (Vr) (Max)	45 V	45 V	Yes
Current - Average Rectified (Io) (per Diode)	8 A	8 A	Yes
Voltage - Forward (Vf) (Max) @ If	540 mV @ 8 A	540 mV @ 8 A	Yes
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Yes
Current - Reverse Leakage @ Vr	210 µA @ 45 V	210 µA @ 45 V	Yes
Operating Temperature - Junction	-55°C ~ 150°C	-55°C ~ 150°C	Yes
Package / Case	TO-252-3, DPAK (2 Leads + Tab), SC-63	TO-252-3, DPAK (2 Leads + Tab), SC-63	Yes
Mounting Type	Surface Mount	Surface Mount	Yes
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Yes
REACH Status	REACH Unaffected	REACH Unaffected	Yes
ECCN	EAR99	EAR99	Yes
HTSUS	8541.10.0080	8541.10.0080	Yes

Engineering Selection Recommendations

The SDM1645CS_L2_00001 is a direct parametric equivalent to the SDM1645CS_S2_00001. Both components are manufactured by Panjit International Inc. and share identical electrical, thermal, and mechanical specifications.

Both parts carry Obsolete product status. The SDM1645CS_L2_00001 maintains ROHS3 compliance and REACH Unaffected status, consistent with the primary part. Both components are classified under ECCN EAR99 and HTSUS code 8541.10.0080.

Selection between these two part numbers may be based on inventory availability. The SDM1645CS_S2_00001 has 3509 pieces in stock, while the SDM1645CS_L2_00001 has 3793 pieces available. Both are supplied in Cut Tape (CT) packaging.

Frequently Asked Questions (FAQ)

Q: Can the SDM1645CS_L2_00001 be used as a direct replacement for the SDM1645CS_S2_00001?

A: Yes. The SDM1645CS_L2_00001 is a parametric equivalent with identical electrical ratings, thermal characteristics, package type, and compliance certifications. Direct substitution is supported without circuit modification.

Q: Are there any differences in the TO-252-3 package between these parts?

A: No. Both parts use the identical TO-252-3 DPAK package with 2 Leads + Tab (SC-63 designation). Pin configuration, lead spacing, and mounting footprint are identical.

Q: What is the significance of the part number suffix (_S2_00001 vs. _L2_00001)?

A: The suffix designates different manufacturing tape reels or production batches from Panjit International Inc. The electrical and mechanical specifications remain identical across these variants.

Q: Are both parts RoHS3 compliant?

A: Yes. Both the SDM1645CS_S2_00001 and SDM1645CS_L2_00001 are ROHS3 Compliant and REACH Unaffected, meeting current environmental and regulatory requirements.

Q: Can these parts be used in new designs?

A: Both parts carry Obsolete product status. While they remain available in inventory, they are no longer in active production. New designs should evaluate current-generation Schottky diode arrays from active product lines.

Q: What are the key electrical parameters that define substitution for this diode array?

A: Substitution is determined by matching the diode configuration (1 Pair Common Cathode), technology (Schottky), reverse voltage rating (45 V), average rectified current (8 A per diode), forward voltage drop (540 mV @ 8 A), reverse leakage current (210 µA @ 45 V), and recovery speed classification (Fast Recovery ≤ 500ns, > 200mA).

Q: Is the operating temperature range identical between these parts?

A: Yes. Both parts operate across the junction temperature range of -55°C to 150°C.

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