B2100-13 Schottky Diode 100V 2A SMB Equivalent & Substitute Parts

Part Overview

The B2100-13 is a Schottky rectifier diode manufactured by Diodes Incorporated, rated for 100V DC reverse voltage and 2A average rectified current in a Surface Mount SMB (DO-214AA) package. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.

The B2100-13 operates across a junction temperature range of -65°C to 150°C with fast recovery characteristics (≤500ns for currents >200mA). Forward voltage drop is specified at 790 mV @ 2A, with reverse leakage current of 7 mA @ 100V. The part is RoHS non-compliant and REACH affected, which may restrict use in certain applications.

Substitution is required due to obsolete status and regulatory compliance considerations. Active alternatives with identical or superior electrical characteristics are available from multiple manufacturers.

Key Parameters

Parameter	B2100-13 Value	Unit	Substitution Relevance
Voltage - DC Reverse (Vr) Max	100	V	Critical - must match or exceed
Current - Average Rectified (Io)	2	A	Critical - must match or exceed
Voltage - Forward (Vf) Max @ If	790 mV @ 2A	mV	Important - affects power dissipation
Speed - Fast Recovery	≤500ns, >200mA (Io)	ns	Important - switching performance
Current - Reverse Leakage @ Vr	7	mA @ 100V	Important - affects standby current
Capacitance @ Vr, F	75	pF @ 4V, 1MHz	Secondary - affects high-frequency performance
Package / Case	DO-214AA, SMB	-	Critical - physical compatibility
Mounting Type	Surface Mount	-	Critical - assembly compatibility
Operating Temperature - Junction	-65 to 150	°C	Important - thermal operating range
Technology	Schottky	-	Critical - device type

Substitute Part Grouping Explanation

Substitution logic for the B2100-13 is based on the following critical parameters:

Electrical Equivalence Requirements:

Voltage - DC Reverse (Vr) must be ≥100V
Current - Average Rectified (Io) must be ≥2A
Technology must be Schottky
Speed must be Fast Recovery (≤500ns, >200mA)
Package must be DO-214AA (SMB)
Mounting type must be Surface Mount

Compliance Considerations:

RoHS3 compliance preferred for new designs
REACH unaffected status preferred
Automotive grade (AEC-Q101) available for qualified applications

Substitution Categories:

Parametric Equivalents - Identical electrical specifications with improved compliance
Manufacturer Recommended - Alternative manufacturers with matching or superior ratings
Upgrade Options - Higher current ratings (3A) for applications with margin requirements
Downgrade Options - Lower current ratings (1A) for current-limited applications

Parts are grouped by their ability to directly replace the B2100-13 without circuit modification, based on matching voltage, current, package, and technology specifications.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vr (Max) V	Io (A)	Vf (Max) mV @ If	Reverse Leakage µA @ Vr	Package	Product Status	RoHS Status	Temp Range °C
B2100-13	Diodes Inc.	100	2	790 @ 2A	7000 @ 100V	DO-214AA, SMB	Obsolete	Non-compliant	-65 to 150
B2100-13-F	Diodes Inc.	100	2	790 @ 2A	7 @ 100V	DO-214AA, SMB	Active	RoHS3 Compliant	-65 to 150
B2100Q-13-F	Diodes Inc.	100	2	790 @ 2A	7 @ 100V	DO-214AA, SMB	Active	RoHS3 Compliant	-65 to 150
MBRS2H100T3G	onsemi	100	2	790 @ 2A	8 @ 100V	DO-214AA, SMB	Active	RoHS3 Compliant	-65 to 175
STPS2H100U	STMicroelectronics	100	2	790 @ 2A	1 @ 100V	DO-214AA, SMB	Active	RoHS3 Compliant	-65 to 175
CDBB2100-G	Comchip Technology	100	2	850 @ 2A	500 @ 100V	DO-214AA, SMB	Active	RoHS3 Compliant	-55 to 125
S210	Fairchild Semiconductor	100	2	850 @ 2A	400 @ 100V	DO-214AA, SMB	Active	Not specified	-65 to 125
SK310B-LTP	Micro Commercial Co	100	3	850 @ 3A	500 @ 100V	DO-214AA, SMB	Active	RoHS3 Compliant	-55 to 150
MBRS1100T3G	onsemi	100	1	750 @ 1A	500 @ 100V	DO-214AA, SMB	Active	RoHS3 Compliant	-65 to 175
STPS1H100U	STMicroelectronics	100	1	770 @ 1A	4 @ 100V	DO-214AA, SMB	Active	RoHS3 Compliant	-65 to 175
STPS1H100UY	STMicroelectronics	100	1	770 @ 1A	4 @ 100V	DO-214AA, SMB	Active	RoHS3 Compliant	-40 to 175

Engineering Selection Recommendations

Direct Replacement (Identical Electrical Specifications):

The following parts provide direct replacement capability with identical voltage, current, and package specifications:

B2100-13-F (Diodes Incorporated): Active status, RoHS3 compliant, identical electrical characteristics, improved reverse leakage specification (7 µA vs. 7 mA). Recommended for standard applications.
B2100Q-13-F (Diodes Incorporated): Active status, RoHS3 compliant, AEC-Q101 automotive qualified, identical electrical characteristics. Recommended for automotive and mission-critical applications.
MBRS2H100T3G (onsemi): Active status, RoHS3 compliant, extended temperature range (-65°C to 175°C), nearly identical electrical characteristics. Recommended for high-temperature environments.
STPS2H100U (STMicroelectronics): Active status, RoHS3 compliant, extended temperature range (-65°C to 175°C), superior reverse leakage specification (1 µA). Recommended for low-leakage applications.

Higher Current Rating (Upgrade Option):

SK310B-LTP (Micro Commercial Co): 3A rating provides design margin for 2A applications. Active status, RoHS3 compliant. Suitable when thermal or reliability margin is required.

Lower Current Rating (Downgrade Option):

STPS1H100U or STPS1H100UY (STMicroelectronics): 1A rating for current-limited applications. Both active status, RoHS3 compliant. STPS1H100UY includes automotive qualification (AEC-Q101).

Alternative Manufacturer Options:

CDBB2100-G (Comchip Technology): 2A rating, RoHS3 compliant, reduced temperature range (-55°C to 125°C). Acceptable for standard industrial applications within specified temperature limits.
S210 (Fairchild Semiconductor): 2A rating, active status. Compliance status not specified; verify RoHS/REACH requirements for specific applications.

Compliance Priority:

All recommended direct replacements are RoHS3 compliant and REACH unaffected, addressing the regulatory limitations of the obsolete B2100-13. Selection should prioritize active product status and compliance certifications for new designs.

Frequently Asked Questions (FAQ)

Q: Can I use a 1A diode (STPS1H100U) in place of the 2A B2100-13?

A: No. The B2100-13 is rated for 2A average rectified current. Using a 1A-rated diode would exceed its current specification and cause premature failure or thermal damage. Use only parts rated for 2A or higher.

Q: Can I use a 3A diode (SK310B-LTP) instead of the 2A B2100-13?

A: Yes. The SK310B-LTP is rated for 3A, which exceeds the 2A requirement. It maintains identical voltage (100V), package (DO-214AA, SMB), and technology (Schottky) specifications. Higher current rating provides design margin without circuit modification.

Q: What is the difference between B2100-13-F and B2100Q-13-F?

A: Both are active Diodes Incorporated parts with identical electrical specifications. The B2100Q-13-F includes AEC-Q101 automotive qualification and is supplied on Tape & Reel (TR). The B2100-13-F is supplied on Cut Tape (CT) & Digi-Reel. Select B2100Q-13-F for automotive applications; either part is acceptable for industrial use.

Q: Why does the B2100-13 show 7 mA reverse leakage while B2100-13-F shows 7 µA?

A: This represents a 1000-fold improvement in the active variant. The B2100-13-F specification (7 µA @ 100V) is more typical for modern Schottky diodes. Both values are within acceptable ranges for most applications, but the lower leakage of B2100-13-F reduces standby current consumption.

Q: Are all substitute parts RoHS3 compliant?

A: All recommended direct replacements (B2100-13-F, B2100Q-13-F, MBRS2H100T3G, STPS2H100U, SK310B-LTP, STPS1H100U, STPS1H100UY) are RoHS3 compliant. The S210 (Fairchild) and CDBB2100-G compliance status should be verified with the supplier for specific applications.

Q: Can I substitute STPS2H100U for B2100-13 without circuit changes?

A: Yes. The STPS2H100U matches all critical parameters: 100V reverse voltage, 2A current rating, DO-214AA SMB package, Schottky technology, and fast recovery speed. It is RoHS3 compliant and has an extended temperature range (-65°C to 175°C). No circuit modification is required.

Q: What is the difference between Cut Tape (CT) and Tape & Reel (TR) packaging?

A: Both are surface mount packaging formats. Cut Tape (CT) is supplied in smaller quantities on individual tape segments. Tape & Reel (TR) is supplied in continuous reel format for high-volume automated assembly. Electrical specifications are identical; selection depends on assembly volume and equipment compatibility.

Q: Is the B2100-13 still available for purchase?

A: The B2100-13 is classified as obsolete. The active equivalent B2100-13-F is available with 20,940 pieces in stock. For new designs, use B2100-13-F or other active alternatives to ensure long-term supply availability.

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

A: The STPS2H100U has the lowest reverse leakage at 1 µA @ 100V, compared to 7 µA for B2100-13-F and 8 µA for MBRS2H100T3G. This makes STPS2H100U optimal for applications requiring minimal standby current.

Q: Can I use STPS1H100UY (automotive grade) in non-automotive applications?

A: Yes. Automotive-qualified parts (AEC-Q101) meet or exceed industrial specifications. STPS1H100UY can be used in any application, though it is rated for 1A only. For 2A applications, use B2100Q-13-F (automotive qualified, 2A) or MBRS2H100T3G (industrial, 2A).

Q: What is the operating temperature range difference between B2100-13-F and STPS2H100U?

A: B2100-13-F operates from -65°C to 150°C. STPS2H100U operates from -65°C to 175°C. The STPS2H100U provides 25°C additional high-temperature margin, beneficial for applications in elevated ambient or high-power environments.

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