CMSH2-60 BK PBFREE Schottky Diode Equivalent & Substitute Parts

Part Overview

The CMSH2-60 BK PBFREE is a 60V, 2A Schottky rectifier diode manufactured by Central Semiconductor Corp in Surface Mount SMB (DO-214AA) package. This component is classified as Active product status and is RoHS3 compliant. Equivalent and substitute parts are identified based on matching electrical specifications, package compatibility, and thermal operating ranges. Alternative sources become necessary for supply chain continuity, packaging format preferences, or specific qualification requirements such as automotive-grade certifications.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) Maximum	60	V
Current - Average Rectified (Io)	2	A
Voltage - Forward (Vf) Maximum @ If	700 mV @ 2 A	mV @ A
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)	ns
Current - Reverse Leakage @ Vr	500	µA @ 60 V
Mounting Type	Surface Mount	—
Package / Case	DO-214AA, SMB	—
Operating Temperature - Junction	-65 to 150	°C
Technology	Schottky	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution eligibility for the CMSH2-60 BK PBFREE is determined by the following criteria:

Primary Matching Parameters:

Voltage - DC Reverse (Vr) Maximum: 60 V (exact match required)
Current - Average Rectified (Io): 2 A (exact match required for direct substitution)
Package / Case: DO-214AA, SMB (mechanical and thermal compatibility)
Technology: Schottky (functional equivalence)
Speed Classification: Fast Recovery ≤ 500ns, > 200mA (Io) (switching performance)
Operating Temperature Range: Minimum -65°C to maximum 150°C (thermal envelope)

Acceptable Variations:

Voltage - Forward (Vf) Maximum @ If: 700 mV ± tolerance (within typical Schottky range)
Current - Reverse Leakage @ Vr: 500 µA or lower (lower leakage is acceptable)
Packaging Format: Bulk, Tape & Reel (TR), or Cut Tape (CT) & Digi-Reel® (supply format variation)
Compliance: RoHS3 Compliant (regulatory requirement maintained)

Current Rating Deviations: Parts with Current - Average Rectified (Io) of 1 A or 3 A are listed as substitutes but represent functional alternatives for applications with different current requirements. These are not direct drop-in replacements but serve as alternatives when circuit design permits current rating adjustment.

Parameter Comparison

Part Number	Manufacturer	Vr (Max) V	Io (A)	Vf (Max) @ If (mV)	Reverse Leakage @ Vr (µA)	Package	Temp Range (°C)	Packaging Format
CMSH2-60 BK PBFREE	Central Semiconductor Corp	60	2	700 @ 2 A	500 @ 60 V	DO-214AA, SMB	-65 to 150	Bulk
B260Q-13-F	Diodes Incorporated	60	2	700 @ 2 A	500 @ 60 V	DO-214AA, SMB	-65 to 150	Tape & Reel (TR)
B260-13-F	Diodes Incorporated	60	2	700 @ 2 A	500 @ 60 V	DO-214AA, SMB	-65 to 150	Cut Tape (CT) & Digi-Reel®
SS26-E3/52T	Vishay General Semiconductor - Diodes Division	60	2	700 @ 2 A	400 @ 60 V	DO-214AA, SMB	-65 to 125	Cut Tape (CT) & Digi-Reel®
SS26-E3/5BT	Vishay General Semiconductor - Diodes Division	60	2	700 @ 2 A	400 @ 60 V	DO-214AA, SMB	-65 to 125	Tape & Reel (TR)
B160BQ-13-F	Diodes Incorporated	60	1	700 @ 1 A	500 @ 60 V	DO-214AA, SMB	-65 to 150	Tape & Reel (TR)
STPS160UY	STMicroelectronics	60	1	670 @ 1 A	4 @ 60 V	DO-214AA, SMB	-40 to 150	Tape & Reel (TR)
B360B-E3/52T	Vishay General Semiconductor - Diodes Division	60	3	660 @ 3 A	100 @ 60 V	DO-214AA, SMB	-55 to 150	Cut Tape (CT) & Digi-Reel®
B360B-E3/5BT	Vishay General Semiconductor - Diodes Division	60	3	660 @ 3 A	100 @ 60 V	DO-214AA, SMB	-55 to 150	Tape & Reel (TR)
B260A-13-F	Diodes Incorporated	60	2	700 @ 2 A	500 @ 60 V	DO-214AC, SMA	-65 to 150	Cut Tape (CT) & Digi-Reel®

Engineering Selection Recommendations

Direct Substitutes (Identical Electrical and Thermal Specifications):

The following parts are direct substitutes for CMSH2-60 BK PBFREE with matching 60V, 2A ratings and -65°C to 150°C operating range:

B260Q-13-F (Diodes Incorporated): Identical specifications. Automotive-grade with AEC-Q101 qualification. Available in Tape & Reel format. RoHS3 compliant.
B260-13-F (Diodes Incorporated): Identical specifications. Available in Cut Tape & Digi-Reel® format. RoHS3 compliant.

Substitutes with Reduced Operating Temperature Range:

SS26-E3/52T and SS26-E3/5BT (Vishay General Semiconductor - Diodes Division): Match 60V, 2A ratings. Operating range -65°C to 125°C (10°C reduction at upper limit). Reverse leakage 400 µA (lower than 500 µA). RoHS3 compliant. Suitable for applications not requiring full 150°C junction temperature capability.

Substitutes with Different Current Ratings:

B160BQ-13-F and STPS160UY (1A rating): Suitable for applications requiring lower current capacity. B160BQ-13-F maintains -65°C to 150°C range with AEC-Q101 qualification. STPS160UY offers automotive-grade with AEC-Q101 but operating range -40°C to 150°C.
B360B-E3/52T and B360B-E3/5BT (3A rating): Suitable for applications requiring higher current capacity. Operating range -55°C to 150°C (10°C reduction at lower limit). Reduced reverse leakage (100 µA).

Package Variant:

B260A-13-F (Diodes Incorporated): Identical electrical specifications to B260-13-F but in DO-214AC (SMA) package instead of DO-214AA (SMB). Not a direct mechanical substitute due to different package footprint.

Compliance Status:

All listed substitutes maintain RoHS3 compliance and REACH Unaffected status. Automotive-grade options (B260Q-13-F, B160BQ-13-F, STPS160UY) carry AEC-Q101 qualification for applications requiring automotive reliability standards.

Frequently Asked Questions (FAQ)

Q1: Can B260Q-13-F replace CMSH2-60 BK PBFREE in a 1:1 basis?

A: Yes. B260Q-13-F is a direct substitute with identical electrical specifications (60V, 2A), matching forward voltage (700 mV @ 2 A), identical operating temperature range (-65°C to 150°C), and compatible DO-214AA SMB package. The primary difference is packaging format (Tape & Reel vs. Bulk) and automotive-grade qualification (AEC-Q101).

Q2: What is the difference between B260-13-F and B260Q-13-F?

A: Both parts are manufactured by Diodes Incorporated with identical electrical specifications. B260Q-13-F is automotive-grade with AEC-Q101 qualification and supplied in Tape & Reel format. B260-13-F is supplied in Cut Tape & Digi-Reel® format without automotive qualification. Selection depends on supply chain requirements and application grade.

Q3: Why are 1A and 3A rated parts listed as substitutes?

A: B160BQ-13-F (1A) and B360B-E3/52T/5BT (3A) are functional alternatives, not direct drop-in replacements. They share the same 60V reverse voltage rating and DO-214AA SMB package but differ in current capacity. These are listed for applications where circuit design permits current rating adjustment. Direct substitution requires matching 2A current rating.

Q4: Can SS26-E3/52T be used instead of CMSH2-60 BK PBFREE?

A: SS26-E3/52T matches the 60V, 2A electrical specifications and DO-214AA SMB package. However, the maximum operating junction temperature is 125°C versus 150°C for the original part. This substitution is acceptable for applications not requiring operation above 125°C. Reverse leakage is lower (400 µA vs. 500 µA), which is a favorable characteristic.

Q5: What is the significance of the DO-214AA (SMB) package designation?

A: DO-214AA is the industry-standard package code for SMB (Surface Mount Diode) format. All listed 2A and 1A/3A substitutes use this identical package, ensuring mechanical and thermal compatibility on PCB layouts. B260A-13-F uses DO-214AC (SMA) package, which has different footprint dimensions and is not mechanically compatible.

Q6: Are there differences in reverse leakage current among substitutes?

A: Yes. CMSH2-60 BK PBFREE specifies 500 µA @ 60V. SS26-E3/52T and SS26-E3/5BT specify 400 µA (lower leakage). B360B-E3/52T and B360B-E3/5BT specify 100 µA (significantly lower). STPS160UY specifies 4 µA (extremely low leakage). Lower reverse leakage reduces power dissipation in reverse bias conditions and is generally favorable for circuit performance.

Q7: What does AEC-Q101 qualification mean?

A: AEC-Q101 is the automotive industry standard qualification for discrete semiconductors. Parts carrying this qualification (B260Q-13-F, B160BQ-13-F, STPS160UY) have undergone rigorous reliability testing and are approved for automotive applications. This certification is required for automotive-grade designs but not necessary for general industrial or consumer applications.

Q8: Can STPS160UY (1A) be used in place of CMSH2-60 BK PBFREE (2A)?

A: STPS160UY is not a direct substitute due to lower current rating (1A vs. 2A). However, it is listed as a functional alternative for applications where circuit design permits 1A operation. STPS160UY offers advantages including automotive-grade qualification (AEC-Q101), extremely low reverse leakage (4 µA), and compatible DO-214AA SMB package. Operating temperature range is -40°C to 150°C (narrower lower limit).

Q9: What packaging format should be selected for high-volume production?

A: For high-volume production, Tape & Reel (TR) format is standard for automated assembly. B260Q-13-F, B160BQ-13-F, SS26-E3/5BT, B360B-E3/5BT, and STPS160UY are available in Tape & Reel format. Cut Tape (CT) & Digi-Reel® format (B260-13-F, B360B-E3/52T, SS26-E3/52T) is suitable for lower-volume or mixed-component orders.

Q10: Are all substitutes RoHS3 compliant?

A: Yes. All listed substitute parts maintain RoHS3 compliance and REACH Unaffected status, matching the regulatory compliance of CMSH2-60 BK PBFREE. This ensures compatibility with environmental and hazardous substance restrictions applicable to electronic components.

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