SF164 Diode Array Equivalent & Substitute Parts

Part Overview

The SF164 is a general-purpose diode array manufactured by Diodes Incorporated, configured as a 1 Pair Common Cathode rectifier with 200V reverse voltage rating and 16A average rectified current per diode. The device is packaged in TO-220-3 through-hole configuration and operates across a junction temperature range of -65°C to 175°C.

The SF164 carries an Obsolete product status. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this component.

Substiute Parts

SF164

Diodes IncorporatedIn Stock: 1097SF164 Datasheet

Current PartRFQ

SBR20A200CT

Diodes IncorporatedIn Stock: 5113SBR20A200CT Datasheet

MFR RecommendedRFQ

SBR20A200CTB

Diodes IncorporatedIn Stock: 7637SBR20A200CTB Datasheet

MFR RecommendedRFQ

FEP16DT-E3/45

Vishay General Semiconductor - Diodes DivisionIn Stock: 1558FEP16DT-E3/45 Datasheet

MFR RecommendedRFQ

SDUR1620CT

SMC Diode SolutionsIn Stock: 1030SDUR1620CT Datasheet

MFR RecommendedRFQ

GI2404-E3/45

Vishay General Semiconductor - Diodes DivisionIn Stock: 1061GI2404-E3/45 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SF164 diode array is determined by strict adherence to the following electrical and mechanical parameters:

Critical Matching Parameters:

• Diode configuration (1 Pair Common Cathode)
• Voltage rating (200V DC reverse minimum)
• Current rating (16A average rectified per diode minimum)
• Package type (TO-220-3 through-hole for direct mechanical compatibility)
• Speed classification (Fast Recovery ≤ 500ns)
• Operating temperature range (-65°C to 175°C minimum)

Acceptable Variation Parameters:

• Forward voltage (Vf) within ±50 mV at rated current
• Reverse leakage current (within one order of magnitude)
• Reverse recovery time (trr) within ±10 ns

Substitute parts are grouped into two categories:

Category 1: Direct Equivalents (Through-Hole TO-220-3) Parts maintaining identical package, mounting type, and current rating of 16A. These provide pin-for-pin and mechanical compatibility.

Category 2: Functional Equivalents (Reduced Current Rating) Parts with 10A current rating in through-hole TO-220-3 package. These satisfy voltage and configuration requirements but operate at reduced current capacity.

Category 3: Package Variant (Surface Mount) Parts with identical electrical specifications but different mounting technology (TO-263-3 surface mount). These require PCB redesign and are not direct mechanical substitutes.

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalents for Pin-for-Pin Replacement:

The FEP16DT-E3/45 (Vishay) and GI2404-E3/45 (Vishay) are direct electrical and mechanical equivalents to the SF164. Both devices maintain the 16A current rating, 200V voltage specification, TO-220-3 through-hole package, and fast recovery speed classification. Both are Active product status with ROHS3 compliance. The FEP16DT-E3/45 exhibits slightly lower forward voltage (950 mV vs. 975 mV at 8A), while the GI2404-E3/45 matches the SF164 forward voltage specification exactly. Operating temperature ranges differ slightly; the FEP16DT-E3/45 operates to 150°C maximum junction temperature versus the SF164's 175°C, while the GI2404-E3/45 operates to 150°C. Both substitute parts are suitable for applications where the SF164 was originally specified.

Functional Equivalents with Reduced Current Rating:

The SBR20A200CT (Diodes Incorporated) provides a through-hole TO-220-3 package with 200V voltage rating and Active product status. This part operates at 10A average rectified current, representing a 37.5% reduction from the SF164's 16A rating. The SBR20A200CT employs Super Barrier technology, resulting in lower forward voltage (860 mV @ 10A) and improved reverse recovery time (30 ns vs. 35 ns). This substitute is applicable only to applications where the 10A current capacity is sufficient. Higher reverse leakage current (100 µA vs. 10 µA) must be evaluated against circuit requirements.

Package Variant for Surface Mount Applications:

The SBR20A200CTB (Diodes Incorporated) provides identical electrical specifications to the SBR20A200CT but in TO-263-3 (D2PAK) surface mount package. This part requires PCB redesign and is not a direct mechanical substitute. Selection of this variant is appropriate only when surface mount technology is required or preferred for the application.

Alternative Technology Consideration:

The SDUR1620CT (SMC Diode Solutions) employs Schottky technology in TO-220-3 through-hole package with 200V rating. This part does not specify average rectified current rating. Forward voltage is elevated at 1.2V @ 8A compared to the SF164's 975 mV, resulting in higher power dissipation. Reverse leakage is lower (5 µA vs. 10 µA). Operating temperature range is limited to -55°C to 150°C. This substitute is applicable only when Schottky characteristics are specifically required and the elevated forward voltage is acceptable.

Compliance and Availability:

All substitute parts maintain ROHS3 compliance. The Vishay parts (FEP16DT-E3/45, GI2404-E3/45) and SMC part (SDUR1620CT) carry REACH Unaffected status, while the Diodes Incorporated parts (SBR20A200CT, SBR20A200CTB) carry REACH Unaffected status. All parts are classified under ECCN EAR99 and HTSUS 8541.10.0080.

Frequently Asked Questions (FAQ)

Q: Can the FEP16DT-E3/45 be used as a direct replacement for the SF164?

A: Yes. The FEP16DT-E3/45 maintains identical diode configuration (1 Pair Common Cathode), voltage rating (200V), current rating (16A), package (TO-220-3), and speed classification (Fast Recovery). Forward voltage is 25 mV lower (950 mV vs. 975 mV at 8A), which is within acceptable variation. The primary consideration is the reduced maximum junction temperature (150°C vs. 175°C), which must be evaluated against the application's thermal environment.

Q: What is the difference between the GI2404-E3/45 and FEP16DT-E3/45?

A: Both parts are direct equivalents with identical electrical specifications and TO-220-3 through-hole package. The GI2404-E3/45 matches the SF164's forward voltage specification exactly (975 mV @ 8A), while the FEP16DT-E3/45 is 25 mV lower. Both operate to 150°C maximum junction temperature. Selection between these parts depends on forward voltage tolerance requirements and manufacturer preference.

Q: Why does the SBR20A200CT have lower current rating than the SF164?

A: The SBR20A200CT is rated for 10A average rectified current per diode, compared to the SF164's 16A. This reflects the thermal and design characteristics of the Super Barrier technology employed in the SBR20 series. The SBR20A200CT is suitable only for applications where 10A current capacity is sufficient. Applications requiring the full 16A capacity must use FEP16DT-E3/45 or GI2404-E3/45.

Q: Can the SBR20A200CTB (surface mount) be used in place of the SF164?

A: The SBR20A200CTB cannot be used as a direct mechanical substitute because it employs TO-263-3 (D2PAK) surface mount package, while the SF164 uses TO-220-3 through-hole package. PCB redesign is required. Additionally, the SBR20A200CTB is rated for 10A current, not 16A. This part is appropriate only when surface mount technology is required and 10A current capacity is acceptable.

Q: What are the key parameters that determine substitution compatibility?

A: Substitution compatibility is determined by: (1) Diode configuration (1 Pair Common Cathode), (2) Voltage rating (200V DC reverse minimum), (3) Current rating (16A average rectified per diode for direct equivalents), (4) Package type (TO-220-3 for through-hole compatibility), (5) Speed classification (Fast Recovery ≤ 500ns), and (6) Operating temperature range (-65°C to 175°C minimum). Deviations from these parameters require application-specific evaluation.

Q: Does the SDUR1620CT Schottky diode array provide equivalent performance to the SF164?

A: The SDUR1620CT maintains 200V voltage rating and TO-220-3 through-hole package but employs Schottky technology with elevated forward voltage (1.2V @ 8A vs. 975 mV). Current rating is not specified. Operating temperature range is limited to -55°C to 150°C. This part is suitable only when Schottky characteristics are specifically required and the elevated forward voltage and reduced temperature range are acceptable for the application.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed (FEP16DT-E3/45, GI2404-E3/45, SBR20A200CT, SBR20A200CTB, SDUR1620CT) are ROHS3 Compliant, matching the SF164's compliance status.

Q: What is the significance of reverse recovery time (trr) in selecting a substitute?

A: Reverse recovery time affects switching speed and power dissipation in rectifier applications. The SF164 specifies 35 ns trr. Substitute parts with lower trr (FEP16DT-E3/45, GI2404-E3/45, SBR20A200CT, SBR20A200CTB at 30 ns) provide improved switching characteristics and reduced switching losses. The SDUR1620CT does not specify trr. For applications sensitive to switching speed, lower trr values are advantageous.

Q: How does reverse leakage current affect substitute selection?

A: Reverse leakage current affects circuit performance in high-impedance applications and thermal stability. The SF164 specifies 10 µA @ 200V. The SBR20A200CT and SBR20A200CTB specify 100 µA, representing one order of magnitude higher leakage. The GI2404-E3/45 and SDUR1620CT specify 5 µA, representing lower leakage. Applications with stringent leakage requirements should prioritize parts with lower reverse leakage specifications.