16CTQ100-1 Equivalent & Substitute Parts

Part Overview

The 16CTQ100-1 is a Schottky diode array manufactured by Vishay General Semiconductor - Diodes Division. This component features a 1 Pair Common Cathode configuration rated for 100 V DC reverse voltage and 8 A average rectified current per diode. The device is packaged in TO-262-3 (I2PAK) with long leads for through-hole mounting.

The 16CTQ100-1 is classified as obsolete. Substitute parts are necessary to maintain design continuity and ensure availability for new production runs, repairs, and system upgrades. Alternative components must maintain electrical compatibility while meeting current manufacturing and compliance standards.

Key Parameters

Parameter	Value
Diode Configuration	1 Pair Common Cathode
Technology	Schottky
Voltage - DC Reverse (Vr) (Max)	100 V
Current - Average Rectified (Io) (per Diode)	8 A
Voltage - Forward (Vf) (Max) @ If	720 mV @ 8 A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr	550 µA @ 100 V
Operating Temperature - Junction	-55°C ~ 175°C
Mounting Type	Through Hole
Package / Case	TO-262-3 Long Leads, I2PAK, TO-262AA
RoHS Status	RoHS non-compliant

Substitute Part Grouping Explanation

Substitute parts for the 16CTQ100-1 are selected based on the following critical parameters:

Electrical Compatibility Requirements:

Diode Configuration: 1 Pair Common Cathode (mandatory)
Technology: Schottky (mandatory for fast recovery characteristics)
Voltage - DC Reverse (Vr) (Max): 100 V (mandatory)
Current - Average Rectified (Io) (per Diode): Equal to or greater than 8 A
Speed: Fast Recovery ≤ 500ns, > 200mA (Io) (mandatory)
Operating Temperature - Junction: Must encompass or exceed -55°C ~ 175°C range

Mechanical Compatibility Requirements:

Mounting Type: Through Hole (mandatory)
Package / Case: TO-262-3 or TO-220-3 (pin-compatible alternatives)

Substitute parts may differ in current rating (higher ratings acceptable), forward voltage characteristics, reverse leakage current, and package form factor, provided the electrical and mechanical requirements are satisfied. Product status and compliance certifications are secondary considerations that support long-term availability and regulatory adherence.

Parameter Comparison

Parameter	16CTQ100-1	MBR20100CT-G1	NTSV30H100CTG	SBR20A100CTE	STPS40SM100CT
Manufacturer	Vishay	Diodes Incorporated	onsemi	Diodes Incorporated	STMicroelectronics
Diode Configuration	1 Pair Common Cathode	1 Pair Common Cathode	1 Pair Common Cathode	1 Pair Common Cathode	1 Pair Common Cathode
Technology	Schottky	Schottky	Schottky	Super Barrier	Schottky
Voltage - DC Reverse (Vr) (Max)	100 V	100 V	100 V	100 V	100 V
Current - Average Rectified (Io) (per Diode)	8 A	10 A	15 A	10 A	20 A
Voltage - Forward (Vf) (Max) @ If	720 mV @ 8 A	840 mV @ 10 A	850 mV @ 15 A	750 mV @ 10 A	810 mV @ 20 A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Standard Recovery >500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr	550 µA @ 100 V	50 µA @ 100 V	95 µA @ 100 V	100 µA @ 100 V	45 µA @ 100 V
Operating Temperature - Junction	-55°C ~ 175°C	-55°C ~ 175°C	-40°C ~ 150°C	-65°C ~ 175°C	Max 150°C
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	TO-262-3 Long Leads, I2PAK, TO-262AA	TO-220-3	TO-220-3	TO-262-3 Long Leads, I2PAK, TO-262AA	TO-220-3
Product Status	Obsolete	Active	Obsolete	Active	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

SBR20A100CTE (Diodes Incorporated)

This substitute maintains the original TO-262-3 package form factor, eliminating the need for PCB layout modifications. The SBR20A100CTE is rated for 10 A average rectified current, exceeding the 8 A requirement of the 16CTQ100-1. The device employs Super Barrier technology with a forward voltage of 750 mV @ 10 A, which is lower than the original 720 mV @ 8 A specification. The component is Active status with ROHS3 compliance, ensuring long-term availability and regulatory adherence. Operating temperature range extends to -65°C ~ 175°C, exceeding the original -55°C ~ 175°C specification.

MBR20100CT-G1 (Diodes Incorporated)

This substitute provides 10 A average rectified current capacity with Schottky technology matching the original specification. The device is rated for -55°C ~ 175°C, identical to the 16CTQ100-1 operating range. MBR20100CT-G1 carries AEC-Q101 automotive qualification and ROHS3 compliance. The package transitions to TO-220-3, requiring PCB layout evaluation. Product status is Active, supporting long-term supply chain continuity.

STPS40SM100CT (STMicroelectronics)

This substitute delivers 20 A average rectified current capacity with Schottky technology and fast recovery characteristics. The device maintains 100 V DC reverse voltage rating and provides the lowest reverse leakage current at 45 µA @ 100 V. STPS40SM100CT is Active status with ROHS3 compliance. The TO-220-3 package requires PCB layout assessment. Maximum junction temperature is 150°C, which does not fully encompass the original -55°C ~ 175°C range.

NTSV30H100CTG (onsemi)

This substitute provides 15 A average rectified current with Schottky technology and fast recovery characteristics. The device is rated for -40°C ~ 150°C, which does not fully encompass the original -55°C ~ 175°C specification. NTSV30H100CTG is Obsolete status, limiting long-term availability. The TO-220-3 package requires PCB layout evaluation. ROHS3 compliance is provided.

Frequently Asked Questions (FAQ)

Q: Can the 16CTQ100-1 be directly replaced with SBR20A100CTE without PCB modifications?

A: Yes. Both components use the TO-262-3 Long Leads package (I2PAK, TO-262AA), maintaining identical pin spacing and through-hole mounting compatibility. No PCB layout changes are required.

Q: What is the primary difference between the 16CTQ100-1 and MBR20100CT-G1?

A: The primary difference is package form factor. The 16CTQ100-1 uses TO-262-3, while MBR20100CT-G1 uses TO-220-3. Both maintain 100 V DC reverse voltage and 1 Pair Common Cathode configuration. MBR20100CT-G1 provides higher current capacity (10 A vs. 8 A) and includes AEC-Q101 automotive qualification.

Q: Why does STPS40SM100CT have a lower maximum junction temperature than the original part?

A: STPS40SM100CT specifies a maximum junction temperature of 150°C, whereas the 16CTQ100-1 is rated to 175°C. This represents a thermal design difference in the STMicroelectronics component. Applications requiring operation at temperatures above 150°C should select alternative substitutes.

Q: Is NTSV30H100CTG suitable for applications requiring the full -55°C ~ 175°C temperature range?

A: No. NTSV30H100CTG is rated for -40°C ~ 150°C, which does not encompass the original -55°C ~ 175°C specification. Additionally, NTSV30H100CTG is classified as Obsolete, limiting long-term availability for production applications.

Q: What is the significance of RoHS compliance in selecting a substitute?

A: RoHS3 compliance indicates adherence to current environmental and hazardous substance restrictions. The original 16CTQ100-1 is RoHS non-compliant. All active substitute parts (SBR20A100CTE, MBR20100CT-G1, STPS40SM100CT) are ROHS3 compliant, supporting regulatory requirements in modern manufacturing and distribution environments.

Q: Can SBR20A100CTE be used in applications designed for the original Schottky technology?

A: SBR20A100CTE employs Super Barrier technology rather than standard Schottky. While both technologies provide fast recovery characteristics and low forward voltage, Super Barrier represents a different diode architecture. The forward voltage of 750 mV @ 10 A is lower than the original 720 mV @ 8 A, which may affect circuit performance in applications with tight voltage margin specifications.

Q: What is the impact of higher current ratings in substitute parts?

A: Substitute parts with higher current ratings (10 A, 15 A, 20 A vs. 8 A) are electrically compatible and provide design margin. Higher current ratings do not degrade performance in applications requiring 8 A or less. Thermal management and PCB trace sizing should be evaluated based on actual circuit current requirements.

Q: Are there package compatibility considerations when transitioning from TO-262-3 to TO-220-3?

A: Yes. TO-262-3 and TO-220-3 have different physical dimensions and pin spacing. PCB layout modifications are required when substituting between these packages. Pin-to-pin electrical functionality remains equivalent for 1 Pair Common Cathode diode arrays.

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