SF16G-TP Equivalent & Substitute Parts

Part Overview

The SF16G-TP is a general-purpose rectifier diode manufactured by Micro Commercial Co, rated for 400 V DC reverse voltage and 1 A average rectified current in a through-hole DO-41 package. This component is classified as Active product status and complies with RoHS3 and REACH regulations. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to inventory constraints, supply chain considerations, or design flexibility needs.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	400	V
Current - Average Rectified (Io)	1	A
Voltage - Forward (Vf) (Max) @ If	1.3 @ 1 A	V
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Reverse Recovery Time (trr)	35	ns
Current - Reverse Leakage @ Vr	5 µA @ 400 V	µA
Mounting Type	Through Hole	—
Package / Case	DO-204AL, DO-41, Axial	—
Operating Temperature - Junction	-55 to 150	°C
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution eligibility for the SF16G-TP is determined by the following critical parameters:

Mandatory Matching Parameters:

Voltage - DC Reverse (Vr) (Max): 400 V
Current - Average Rectified (Io): 1 A
Voltage - Forward (Vf) (Max) @ If: 1.3 V @ 1 A
Speed Classification: Fast Recovery ≤ 500ns, > 200mA (Io)
Mounting Type: Through Hole
Package / Case: DO-204AL, DO-41, or Axial
Operating Temperature - Junction: -55°C to 150°C
RoHS Status: ROHS3 Compliant

Allowable Variation Parameters:

Reverse Recovery Time (trr): Variation permitted within fast recovery classification
Capacitance @ Vr, F: Variation permitted within specified frequency and voltage conditions
Current - Reverse Leakage @ Vr: Variation permitted at rated voltage

All identified substitute parts meet the mandatory matching parameters. Variations in reverse recovery time and capacitance do not affect functional interchangeability in standard rectification applications.

Parameter Comparison

Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) @ If [V]	trr [ns]	Reverse Leakage @ Vr [µA]	Capacitance @ Vr, F [pF]	Package	Product Status	Inventory [Pcs]
SF16G-TP	Micro Commercial Co	400	1	1.3 @ 1 A	35	5 @ 400 V	10 @ 4V, 1MHz	DO-41	Active	1102
UF4004GP-TP	Micro Commercial Co	400	1	1.3 @ 1 A	50	5 @ 400 V	17 @ 4V, 1MHz	DO-41	Active	15757
FR104G A0G	Taiwan Semiconductor Corporation	400	1	1.3 @ 1 A	150	5 @ 400 V	10 @ 4V, 1MHz	DO-204AL (DO-41)	Active	5396
HER105G	Taiwan Semiconductor Corporation	400	1	1.3 @ 1 A	50	5 @ 400 V	15 @ 4V, 1MHz	DO-204AL (DO-41)	Active	2200
SF16GH	Taiwan Semiconductor Corporation	400	1	1.3 @ 1 A	35	5 @ 400 V	10 @ 4V, 1MHz	DO-204AL (DO-41)	Active	5986
UF4005-G	Comchip Technology	400	1	1.3 @ 1 A	50	5 @ 400 V	20 @ 4V, 1MHz	DO-41	Obsolete	8680

Engineering Selection Recommendations

Active Status Parts (Recommended for New Designs):

UF4004GP-TP, FR104G A0G, HER105G, and SF16GH all maintain Active product status and are suitable for new design implementations. These parts satisfy all mandatory electrical and mechanical parameters equivalent to the SF16G-TP.

UF4004GP-TP offers the highest inventory availability (15757 pcs) among substitute options and is manufactured by Micro Commercial Co, matching the original manufacturer. This part exhibits a reverse recovery time of 50 ns, which remains within the fast recovery classification.

SF16GH is qualified to AEC-Q101 automotive standards and carries identical reverse recovery time (35 ns) and capacitance (10 pF) specifications to the SF16G-TP. This part is suitable for applications requiring automotive-grade components.

FR104G A0G and HER105G are manufactured by Taiwan Semiconductor Corporation and provide alternative sourcing. Both maintain Active status and full compliance with RoHS3 and REACH requirements.

Obsolete Status Parts (Not Recommended for New Designs):

UF4005-G carries Obsolete product status and is not recommended for new design implementations, despite adequate inventory availability. This classification indicates discontinued manufacturing and potential future supply unavailability.

Compliance Verification:

All recommended substitute parts maintain ROHS3 Compliant and REACH Unaffected status, matching the regulatory compliance profile of the SF16G-TP.

Frequently Asked Questions (FAQ)

Q: Can UF4004GP-TP directly replace SF16G-TP in existing designs?

A: Yes. UF4004GP-TP meets all mandatory electrical parameters: 400 V reverse voltage, 1 A average rectified current, 1.3 V forward voltage at 1 A, and fast recovery classification. Both components use DO-41 through-hole packaging and operate across -55°C to 150°C. The reverse recovery time difference (50 ns versus 35 ns) remains within the fast recovery specification and does not affect functional interchangeability in standard rectification circuits.

Q: What is the difference between DO-41 and DO-204AL packaging?

A: DO-41 and DO-204AL are equivalent designations for the same axial through-hole package. DO-204AL is the formal JEDEC designation, while DO-41 is the legacy designation. Components specified with either designation are mechanically and electrically interchangeable in through-hole applications.

Q: Why does FR104G A0G have a higher reverse recovery time (150 ns) than the SF16G-TP (35 ns)?

A: Both components meet the fast recovery classification specification of ≤ 500 ns for currents > 200 mA. The variation in reverse recovery time within this range does not affect functional compatibility. Selection between these parts depends on application-specific switching speed requirements, though both are suitable for standard rectification applications.

Q: Is SF16GH suitable for automotive applications?

A: Yes. SF16GH carries AEC-Q101 qualification, indicating compliance with automotive industry reliability standards. This part is suitable for automotive and industrial applications requiring qualified components. All other substitute parts lack automotive qualification.

Q: Why is UF4005-G listed as Obsolete?

A: UF4005-G carries Obsolete product status, indicating the manufacturer has discontinued production. While inventory is currently available (8680 pcs), this classification signals that future supply cannot be guaranteed. Active status parts are recommended for new designs to ensure long-term component availability.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All identified substitute parts maintain ROHS3 Compliant status and REACH Unaffected classification, matching the regulatory compliance of the SF16G-TP. These parts are suitable for applications subject to RoHS3 and REACH requirements.

Q: What is the significance of capacitance variation among substitute parts?

A: Capacitance values range from 10 pF to 20 pF at 4 V, 1 MHz across the substitute parts. This variation is allowable and does not affect functional interchangeability in standard rectification applications. Capacitance becomes relevant only in high-frequency switching or precision timing circuits, which are outside the scope of general-purpose rectification.

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