FEP16CT/45 Equivalent & Substitute Parts

Part Overview

The FEP16CT/45 is a diode array with 1 pair common cathode configuration, rated for 150 V DC reverse voltage and 16 A average rectified current per diode, packaged in TO-220-3 through-hole format. This part is classified as obsolete, necessitating identification of active equivalent and substitute components for new designs and ongoing production requirements. The part exhibits fast recovery characteristics with 35 ns reverse recovery time and operates across a junction temperature range of -55°C to 150°C.

Key Parameters

Parameter	Value
Diode Configuration	1 Pair Common Cathode
Voltage - DC Reverse (Vr) (Max)	150 V
Current - Average Rectified (Io) (per Diode)	16 A
Voltage - Forward (Vf) (Max) @ If	950 mV @ 8 A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)
Reverse Recovery Time (trr)	35 ns
Current - Reverse Leakage @ Vr	10 µA @ 150 V
Operating Temperature - Junction	-55°C ~ 150°C
Mounting Type	Through Hole
Package / Case	TO-220-3
Technology	Standard
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the FEP16CT/45 is determined by the following critical parameters: diode configuration (1 pair common cathode), package type (TO-220-3 through-hole), voltage rating (150 V DC reverse), current rating (16 A average rectified), and recovery speed characteristics (fast recovery ≤ 500ns). Substitute parts must maintain compatibility across these electrical and mechanical specifications to ensure functional equivalence in circuit applications.

The substitute parts are grouped into two primary categories:

Direct Equivalent: FEP16CT-E3/45 maintains identical electrical specifications and diode configuration while offering active product status and improved compliance certifications.

Functional Alternatives: Parts including SBR10U300CT, SBR40U120CT, SBR2060CT, SBR30U30CT, MUR620CTG, DHG10C600PB, and MBR30H30CTG provide alternative voltage and current ratings within the same TO-220-3 package format. These alternatives accommodate applications with different voltage or current requirements while preserving the common cathode configuration and through-hole mounting.

Parameter Comparison

Part Number	Manufacturer	Vr (Max)	Io (per Diode)	Vf (Max) @ If	Speed	trr (ns)	Technology	Package	Product Status	RoHS Status
FEP16CT/45	Vishay	150 V	16 A	950 mV @ 8 A	Fast Recovery ≤ 500ns	35	Standard	TO-220-3	Obsolete	Non-compliant
FEP16CT-E3/45	Vishay	150 V	16 A	950 mV @ 8 A	Fast Recovery ≤ 500ns	35	Standard	TO-220-3	Active	RoHS3 Compliant
DHG10C600PB	IXYS	600 V	5 A	2.2 V @ 5 A	Fast Recovery ≤ 500ns	35	Standard	TO-220-3	Active	RoHS3 Compliant
MBR30H30CTG	onsemi	30 V	15 A	480 mV @ 15 A	Fast Recovery ≤ 500ns	—	Schottky	TO-220-3	Active	RoHS3 Compliant
MUR620CTG	onsemi	200 V	3 A	975 mV @ 3 A	Fast Recovery ≤ 500ns	35	Standard	TO-220-3	Active	RoHS3 Compliant
SBR10U150CT	Diodes Incorporated	150 V	5 A	880 mV @ 10 A	Standard Recovery >500ns	—	Super Barrier	TO-220-3	Active	RoHS3 Compliant
SBR10U300CT	Diodes Incorporated	300 V	5 A	920 mV @ 10 A	Fast Recovery ≤ 500ns	35	Super Barrier	TO-220-3	Active	RoHS3 Compliant
SBR2060CT	Diodes Incorporated	60 V	10 A	700 mV @ 10 A	Standard Recovery >500ns	—	Super Barrier	TO-220-3	Active	RoHS3 Compliant
SBR20A200CT	Diodes Incorporated	200 V	10 A	860 mV @ 10 A	Fast Recovery ≤ 500ns	30	Super Barrier	TO-220-3	Active	RoHS3 Compliant
SBR30U30CT	Diodes Incorporated	30 V	15 A	540 mV @ 30 A	Fast Recovery ≤ 500ns	—	Super Barrier	TO-220-3	Active	RoHS3 Compliant
SBR40U120CT	Diodes Incorporated	120 V	20 A	860 mV @ 20 A	Fast Recovery ≤ 500ns	—	Super Barrier	TO-220-3	Active	RoHS3 Compliant

Engineering Selection Recommendations

Primary Recommendation: FEP16CT-E3/45 provides direct electrical and mechanical equivalence to the obsolete FEP16CT/45. This part maintains identical voltage rating (150 V), current rating (16 A), forward voltage characteristics, and recovery time specifications. The FEP16CT-E3/45 is active in production status and carries RoHS3 compliance certification, addressing regulatory requirements for new designs.

Voltage-Matched Alternatives: For applications requiring 150 V rating with reduced current capacity, SBR10U150CT (5 A) offers active status and RoHS3 compliance. This part utilizes Super Barrier technology and operates within the same temperature range.

Higher Voltage Alternatives: SBR10U300CT (300 V, 5 A) and SBR20A200CT (200 V, 10 A) accommodate applications requiring elevated voltage ratings. Both parts feature fast recovery characteristics and RoHS3 compliance.

Higher Current Alternatives: SBR40U120CT (120 V, 20 A) and SBR30U30CT (30 V, 15 A) provide increased current capacity for low-voltage applications. SBR40U120CT maintains fast recovery speed and RoHS3 compliance.

Low-Voltage Applications: MBR30H30CTG (30 V, 15 A) and SBR30U30CT (30 V, 15 A) serve applications with reduced voltage requirements. Both parts are active and RoHS3 compliant.

All recommended alternatives maintain TO-220-3 through-hole packaging and 1 pair common cathode configuration. Selection should be based on specific circuit voltage and current requirements.

Frequently Asked Questions (FAQ)

Q: Can FEP16CT-E3/45 directly replace FEP16CT/45 in existing designs?

A: Yes. FEP16CT-E3/45 maintains identical electrical specifications including 150 V reverse voltage rating, 16 A average rectified current, 950 mV forward voltage at 8 A, and 35 ns reverse recovery time. Both parts use TO-220-3 through-hole packaging and 1 pair common cathode configuration. The primary difference is product status (active versus obsolete) and RoHS3 compliance certification.

Q: What is the difference between Standard and Super Barrier diode technologies in these substitutes?

A: Standard technology diodes (FEP16CT/45, MUR620CTG) and Super Barrier technology diodes (SBR series) differ in forward voltage characteristics and leakage current behavior. Super Barrier diodes typically exhibit lower forward voltage drop and reduced reverse leakage current at rated voltage. Technology selection depends on circuit efficiency requirements and thermal management considerations.

Q: Can I use SBR10U300CT (300 V, 5 A) in place of FEP16CT/45 (150 V, 16 A)?

A: SBR10U300CT is not a direct replacement due to significantly reduced current rating (5 A versus 16 A). This part is suitable only for applications with lower current requirements. The higher voltage rating (300 V) provides additional margin for overvoltage conditions but does not compensate for current capacity reduction.

Q: Are all substitute parts RoHS3 compliant?

A: All substitute parts listed carry RoHS3 compliance certification. The original FEP16CT/45 is RoHS non-compliant. RoHS3 compliance is required for new designs targeting markets with regulatory requirements.

Q: What is the significance of reverse recovery time (trr) in diode selection?

A: Reverse recovery time affects switching speed and electromagnetic interference characteristics. The FEP16CT/45 specifies 35 ns recovery time. Substitute parts with identical or faster recovery times (SBR10U300CT, SBR20A200CT, SBR40U120CT at 30-35 ns) maintain equivalent switching performance. Parts without specified trr values may exhibit different switching characteristics.

Q: Can I use MUR620CTG (200 V, 3 A) as a substitute?

A: MUR620CTG is not suitable as a direct replacement due to significantly reduced current rating (3 A versus 16 A). This part is applicable only for low-current applications. The 200 V voltage rating exceeds the original 150 V specification.

Q: What packaging considerations apply to these TO-220-3 parts?

A: All listed parts use TO-220-3 through-hole packaging with identical pin configuration and mechanical footprint. Direct physical substitution is possible without PCB redesign. Thermal management characteristics may vary between manufacturers and technologies; verify thermal resistance specifications for high-power applications.

Q: How do I select between multiple substitute options?

A: Selection criteria include: (1) voltage requirement—choose a part with Vr rating equal to or exceeding circuit maximum voltage; (2) current requirement—select Io rating equal to or exceeding circuit maximum current; (3) recovery speed—match fast recovery characteristics for switching applications; (4) technology—Standard or Super Barrier based on efficiency requirements; (5) compliance—verify RoHS and REACH certifications for target markets.

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