CDBB160-G Schottky Diode 60V 1A Equivalent & Substitute Parts

Part Overview

The CDBB160-G is an active Schottky rectifier diode manufactured by Comchip Technology, rated for 60V DC reverse voltage and 1A average rectified current in a surface mount DO-214AA (SMB) package. This component is designed for fast recovery applications with switching speeds ≤500ns at currents >200mA. The part is ROHS3 compliant with unlimited moisture sensitivity level (MSL 1) and is currently in active production with 12,900 units in stock.

Equivalent and substitute parts are identified to address supply chain requirements, inventory availability, or specific application constraints while maintaining electrical and mechanical compatibility within the defined parameter ranges.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) Maximum	60	V
Current - Average Rectified (Io)	1	A
Voltage - Forward (Vf) Maximum @ If	700 mV @ 1 A	mV
Speed - Fast Recovery	≤500ns, >200mA (Io)	ns
Current - Reverse Leakage @ Vr	500	µA @ 60V
Mounting Type	Surface Mount	—
Package / Case	DO-214AA, SMB	—
Operating Temperature - Junction Maximum	125	°C
Technology	Schottky	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitute parts for the CDBB160-G are classified based on strict electrical and mechanical parameter compatibility:

Direct Equivalent (Same Electrical Rating):

CDBB160-HF (Comchip Technology): Identical voltage, current, and package specifications. Differs in operating temperature range (-50°C to 150°C vs. 125°C maximum) and includes capacitance specification (120pF @ 4V, 1MHz).

Functionally Compatible Substitutes (Same Voltage & Package, Equal or Higher Current Rating):

STPS160U (STMicroelectronics): Matches 60V reverse voltage, 1A current rating, and SMB package. Forward voltage is lower (670mV @ 1A vs. 700mV @ 1A). Reverse leakage is significantly lower (4µA @ 60V vs. 500µA @ 60V). Operating temperature maximum is 150°C.
STPS3L60U (STMicroelectronics): Matches 60V reverse voltage and SMB package with higher current rating (3A vs. 1A). Forward voltage is lower (620mV @ 3A). Reverse leakage is lower (150µA @ 60V). Operating temperature maximum is 150°C.
STPS3L60UY (STMicroelectronics): Matches STPS3L60U electrical specifications with automotive-grade qualification (AEC-Q101) and extended operating temperature range (-40°C to 150°C).

Substitution Criteria:

Reverse voltage rating must equal or exceed 60V
Average rectified current must equal or exceed 1A
Package must be DO-214AA or SMB (mechanically and electrically equivalent)
Fast recovery technology (Schottky) required
All parts must be ROHS3 compliant
Surface mount mounting type required

Parameter Comparison

Parameter	CDBB160-G	CDBB160-HF	STPS160U	STPS3L60U	STPS3L60UY
Manufacturer	Comchip Technology	Comchip Technology	STMicroelectronics	STMicroelectronics	STMicroelectronics
Voltage - DC Reverse (Vr) Max	60V	60V	60V	60V	60V
Current - Average Rectified (Io)	1A	1A	1A	3A	3A
Voltage - Forward (Vf) Max @ If	700 mV @ 1A	700 mV @ 1A	670 mV @ 1A	620 mV @ 3A	620 mV @ 3A
Speed - Fast Recovery	≤500ns, >200mA	≤500ns, >200mA	≤500ns, >200mA	≤500ns, >200mA	≤500ns, >200mA
Current - Reverse Leakage @ Vr	500 µA @ 60V	500 µA @ 60V	4 µA @ 60V	150 µA @ 60V	150 µA @ 60V
Package / Case	DO-214AA, SMB	DO-214AA, SMB	DO-214AA, SMB	DO-214AA, SMB	DO-214AA, SMB
Operating Temperature - Junction	125°C Max	-50°C ~ 150°C	150°C Max	150°C Max	-40°C ~ 150°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Inventory Status	12,900 Pcs In Stock	4,898 Pcs In Stock	60,400 Pcs In Stock	80,200 Pcs In Stock	35,400 Pcs In Stock

Engineering Selection Recommendations

CDBB160-HF Selection: Select CDBB160-HF when direct manufacturer equivalence from Comchip Technology is required and extended operating temperature range (-50°C to 150°C) is beneficial. This part maintains identical electrical specifications and is ROHS3 compliant. Inventory availability is lower (4,898 units) compared to the primary part.

STPS160U Selection: Select STPS160U when STMicroelectronics sourcing is preferred and the 1A current rating is sufficient for the application. This part offers improved reverse leakage characteristics (4µA vs. 500µA @ 60V) and lower forward voltage (670mV vs. 700mV @ 1A), resulting in reduced power dissipation. Operating temperature maximum is 150°C. Inventory availability is significantly higher (60,400 units).

STPS3L60U Selection: Select STPS3L60U when higher current capacity (3A vs. 1A) provides design margin or when future application scaling is anticipated. This part maintains 60V reverse voltage rating with improved forward voltage characteristics (620mV @ 3A) and lower reverse leakage (150µA vs. 500µA @ 60V). Operating temperature maximum is 150°C. Inventory availability is highest among all substitutes (80,200 units).

STPS3L60UY Selection: Select STPS3L60UY when automotive-grade qualification (AEC-Q101) is required or when extended operating temperature range (-40°C to 150°C) is necessary for the application. This part combines the 3A current rating and improved electrical characteristics of STPS3L60U with automotive-grade certification. Inventory availability is 35,400 units.

All substitute parts are active products with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1).

Frequently Asked Questions (FAQ)

Q: Can CDBB160-G be directly replaced with STPS160U?

A: Yes. Both parts share identical 60V reverse voltage rating, 1A average rectified current, DO-214AA/SMB package, and fast recovery Schottky technology. STPS160U offers improved reverse leakage (4µA vs. 500µA @ 60V) and lower forward voltage (670mV vs. 700mV @ 1A), making it electrically compatible and functionally superior in power dissipation characteristics.

Q: What is the difference between STPS3L60U and STPS3L60UY?

A: Both parts have identical electrical specifications (60V, 3A, 620mV forward voltage @ 3A, 150µA reverse leakage @ 60V). STPS3L60UY includes automotive-grade qualification (AEC-Q101) and extended operating temperature range (-40°C to 150°C) compared to STPS3L60U (150°C maximum). Select STPS3L60UY for automotive applications or when lower temperature operation is required.

Q: Can a 3A-rated diode (STPS3L60U or STPS3L60UY) be used in place of the 1A CDBB160-G?

A: Yes. A higher current-rated diode is electrically compatible when all other parameters (voltage, package, technology) match. The 3A-rated parts will operate safely at 1A load with improved thermal margin and lower forward voltage drop, resulting in reduced power dissipation.

Q: Are all substitute parts in the same physical package?

A: Yes. All listed parts use DO-214AA or SMB package designation, which are mechanically and electrically equivalent surface mount packages. PCB footprints are identical, allowing direct substitution without layout modifications.

Q: Which substitute part has the lowest reverse leakage current?

A: STPS160U has the lowest reverse leakage at 4µA @ 60V, compared to 500µA for CDBB160-G and CDBB160-HF, and 150µA for STPS3L60U and STPS3L60UY. Lower reverse leakage reduces standby power consumption in applications with continuous reverse bias.

Q: What is the impact of forward voltage differences between substitute parts?

A: Forward voltage differences directly affect power dissipation. STPS160U (670mV @ 1A) and STPS3L60U/STPS3L60UY (620mV @ 3A) have lower forward voltage than CDBB160-G (700mV @ 1A). At 1A load, STPS160U dissipates approximately 30mV less voltage drop, reducing heat generation. This is beneficial in high-frequency switching applications.

Q: Are all parts RoHS compliant?

A: Yes. All listed parts (CDBB160-G, CDBB160-HF, STPS160U, STPS3L60U, STPS3L60UY) are ROHS3 compliant with unlimited moisture sensitivity level (MSL 1), meeting environmental and reliability standards for commercial and industrial applications.

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