TSF20L100C Equivalent & Substitute Parts

Part Overview

The TSF20L100C is a Schottky diode array manufactured by Taiwan Semiconductor Corporation, configured as a 1 Pair Common Cathode with 100 V reverse voltage rating and 10A average rectified current per diode. The device is packaged in TO-220-3 Full Pack with isolated tab for through-hole mounting applications.

The TSF20L100C carries a "Not For New Designs" product status, indicating it is obsolete or being phased out. This necessitates identification of functionally equivalent alternatives that maintain electrical and mechanical compatibility with existing circuit designs.

Key Parameters

Parameter	Value	Unit
Diode Configuration	1 Pair Common Cathode	—
Technology	Schottky	—
Voltage - DC Reverse (Vr) (Max)	100	V
Current - Average Rectified (Io) (per Diode)	10	A
Voltage - Forward (Vf) (Max) @ If	860 mV @ 10 A	—
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Current - Reverse Leakage @ Vr	100	µA @ 100 V
Operating Temperature - Junction	-55 to 150	°C
Mounting Type	Through Hole	—
Package / Case	TO-220-3 Full Pack, Isolated Tab	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the TSF20L100C is determined by strict equivalence across the following critical parameters:

Primary Equivalence Criteria:

Diode Configuration: 1 Pair Common Cathode
Technology: Schottky
Voltage - DC Reverse (Vr) (Max): 100 V
Current - Average Rectified (Io) (per Diode): 10 A
Mounting Type: Through Hole
Package / Case: TO-220-3 Full Pack, Isolated Tab

Secondary Compatibility Parameters:

Voltage - Forward (Vf) (Max) @ If: Must not exceed 860 mV @ 10 A for direct drop-in replacement
Speed: Fast Recovery ≤ 500ns, > 200mA (Io)
Operating Temperature - Junction: Must support minimum -55°C to 150°C range
RoHS Status: ROHS3 Compliant

Parts meeting all primary criteria are classified as direct substitutes. Parts with identical primary parameters but differing secondary characteristics (forward voltage, leakage current, temperature range) are classified as functional equivalents with noted trade-offs.

Parameter Comparison

Part Number	Manufacturer	Vr (Max)	Io (per Diode)	Vf (Max) @ If	Ir @ Vr	Tj (Operating)	Package	Product Status
TSF20L100C	Taiwan Semiconductor Corporation	100 V	10 A	860 mV @ 10 A	100 µA @ 100 V	-55 to 150°C	TO-220-3 Full Pack, Isolated Tab	Not For New Designs
VF20100C-E3/4W	Vishay General Semiconductor - Diodes Division	100 V	10 A	790 mV @ 10 A	800 µA @ 100 V	-40 to 150°C	TO-220-3 Full Pack, Isolated Tab	Active
MBRF20100CT-E3/4W	Vishay General Semiconductor - Diodes Division	100 V	10 A	800 mV @ 10 A	100 µA @ 100 V	-65 to 150°C	TO-220-3 Full Pack, Isolated Tab	Active
MBRF20H100CT-E3/45	Vishay General Semiconductor - Diodes Division	100 V	10 A	770 mV @ 10 A	4.5 µA @ 100 V	-65 to 175°C	TO-220-3 Full Pack, Isolated Tab	Active
STF20100C	SMC Diode Solutions	100 V	Not Specified	750 mV @ 10 A	300 µA @ 100 V	-55 to 150°C	TO-220-3 Full Pack, Isolated Tab	Active
VF20100R-E3/4W	Vishay General Semiconductor - Diodes Division	100 V	10 A	900 mV @ 10 A	150 µA @ 100 V	-40 to 150°C	TO-220-3 Full Pack, Isolated Tab	Active
VF30100C-E3/4W	Vishay General Semiconductor - Diodes Division	100 V	15 A	800 mV @ 15 A	500 µA @ 100 V	-40 to 150°C	TO-220-3 Full Pack, Isolated Tab	Active
MBRF30H100CT-E3/45	Vishay General Semiconductor - Diodes Division	100 V	15 A	820 mV @ 15 A	5 µA @ 100 V	-65 to 175°C	TO-220-3 Full Pack, Isolated Tab	Active
MBRF10100CT-E3/4W	Vishay General Semiconductor - Diodes Division	100 V	5 A	850 mV @ 5 A	100 µA @ 100 V	-65 to 150°C	TO-220-3 Full Pack, Isolated Tab	Active
STF1060	SMC Diode Solutions	60 V	Not Specified	650 mV @ 10 A	850 µA @ 60 V	-55 to 150°C	TO-220-2 Full Pack, Isolated Tab	Active

Engineering Selection Recommendations

Direct Substitutes (100% Electrical and Mechanical Compatibility):

The following parts satisfy all primary equivalence criteria and are suitable for direct replacement in applications requiring 100 V, 10 A Schottky diode arrays in TO-220-3 configuration:

MBRF20100CT-E3/4W (Vishay): Active product status. Forward voltage 800 mV @ 10 A. Extended temperature range to -65°C. ROHS3 compliant.
MBRF20H100CT-E3/45 (Vishay): Active product status. Superior leakage current performance (4.5 µA vs. 100 µA). Extended temperature range to -65 to 175°C. ROHS3 compliant.
VF20100C-E3/4W (Vishay): Active product status. Lower forward voltage 790 mV @ 10 A. ROHS3 compliant. Temperature range -40 to 150°C.

Functional Equivalents (Electrical Compatibility with Design Considerations):

STF20100C (SMC Diode Solutions): Active product status. Matches temperature range and package. Forward voltage 750 mV @ 10 A. Current rating not specified in documentation. ROHS3 compliant.
VF20100R-E3/4W (Vishay): Active product status. Forward voltage 900 mV @ 10 A (exceeds original specification). Temperature range -40 to 150°C. ROHS3 compliant.

Higher Current Alternatives (For Applications Permitting Increased Current Capacity):

VF30100C-E3/4W (Vishay): 15 A per diode. Active product status. Forward voltage 800 mV @ 15 A. Temperature range -40 to 150°C. ROHS3 compliant.
MBRF30H100CT-E3/45 (Vishay): 15 A per diode. Active product status. Forward voltage 820 mV @ 15 A. Extended temperature range to -65 to 175°C. ROHS3 compliant.

Lower Current Alternative (For Current-Limited Applications):

MBRF10100CT-E3/4W (Vishay): 5 A per diode. Active product status. Forward voltage 850 mV @ 5 A. Extended temperature range to -65°C. ROHS3 compliant.

Not Recommended:

STF1060 (SMC Diode Solutions): Voltage rating 60 V (insufficient for 100 V applications). Package TO-220-2 (incompatible with TO-220-3 requirement). Not suitable for direct substitution.

All recommended substitutes maintain ROHS3 compliance and through-hole mounting compatibility. Selection should be based on specific application requirements for forward voltage, leakage current, and operating temperature range.

Frequently Asked Questions (FAQ)

Q: Can the TSF20L100C be replaced with a lower current-rated part such as MBRF10100CT-E3/4W?

A: MBRF10100CT-E3/4W is rated for 5 A per diode versus the original 10 A specification. This part is suitable only for applications where the actual circuit current does not exceed 5 A per diode. Use of an undersized part in a 10 A application will result in device failure.

Q: What is the difference between MBRF20100CT-E3/4W and MBRF20H100CT-E3/45?

A: Both parts are rated 100 V, 10 A Schottky diode arrays in TO-220-3 package. MBRF20H100CT-E3/45 offers superior reverse leakage current (4.5 µA vs. 100 µA), lower forward voltage (770 mV vs. 800 mV), and extended maximum junction temperature (175°C vs. 150°C). MBRF20H100CT-E3/45 is the higher-performance option.

Q: Is VF20100C-E3/4W a direct replacement for TSF20L100C?

A: VF20100C-E3/4W meets all primary electrical and mechanical specifications: 100 V, 10 A, Schottky, TO-220-3 package, 1 Pair Common Cathode configuration. It is electrically compatible. The minimum operating temperature is -40°C versus -55°C for the original part. If the application requires operation below -40°C, this part is not suitable.

Q: Can I use VF30100C-E3/4W or MBRF30H100CT-E3/45 as substitutes?

A: These parts are rated for 15 A per diode, exceeding the original 10 A specification. They are mechanically and electrically compatible (same 100 V rating, same package, same configuration). They may be used in applications where the circuit current does not exceed 10 A per diode. The higher current rating provides design margin but does not change circuit behavior at 10 A operation.

Q: Why is STF1060 not recommended as a substitute?

A: STF1060 has a maximum reverse voltage rating of 60 V, which is insufficient for applications requiring 100 V operation. Additionally, STF1060 is packaged in TO-220-2 (2-pin) configuration, whereas TSF20L100C requires TO-220-3 (3-pin) package. This part is not electrically or mechanically compatible.

Q: What does "1 Pair Common Cathode" configuration mean?

A: This indicates the diode array contains two diodes with a shared cathode terminal. The three leads are: Anode 1, Anode 2, and Common Cathode. This configuration is essential for certain rectifier and protection circuit topologies. Substitutes must maintain this exact configuration.

Q: Are all recommended substitutes RoHS3 compliant?

A: Yes. All recommended active substitutes carry ROHS3 Compliant certification, matching the original TSF20L100C specification. This ensures compatibility with RoHS3-regulated applications and supply chains.

Q: What is the significance of "Not For New Designs" status on the TSF20L100C?

A: This designation indicates the part is obsolete or being discontinued by the manufacturer. New circuit designs should not incorporate this part number. Existing designs using TSF20L100C should transition to an active substitute part to ensure long-term component availability and supply chain continuity.

Q: How do I select between multiple recommended substitutes?

A: Selection depends on application-specific requirements: (1) Operating temperature range: MBRF20H100CT-E3/45 supports -65 to 175°C; VF20100C-E3/4W supports -40 to 150°C. (2) Forward voltage: MBRF20H100CT-E3/45 has the lowest (770 mV); STF20100C has the lowest among SMC options (750 mV). (3) Leakage current: MBRF20H100CT-E3/45 has the lowest (4.5 µA). (4) Availability and cost: Consult current inventory and pricing from authorized distributors.

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