B3100-13-F Schottky Diode Equivalent & Substitute Parts

Part Overview

The B3100-13-F is an active Schottky rectifier diode manufactured by Diodes Incorporated, rated for 100 V DC reverse voltage and 3 A average rectified current in a surface mount DO-214AB (SMC) package. This component is designed for fast recovery applications with switching speeds ≤ 500 ns and operates across a junction temperature range of -55°C to 125°C. The part is RoHS3 compliant with unlimited moisture sensitivity level (MSL 1) and REACH unaffected status.

Equivalent and substitute parts are necessary when the primary part number becomes unavailable, when alternative packaging formats are required, or when sourcing from multiple manufacturers is required for supply chain continuity. Substitute parts must maintain electrical equivalence across critical parameters including reverse voltage rating, forward current capacity, and switching characteristics.

Substiute Parts

B3100-13-F

Diodes IncorporatedIn Stock: 17485B3100-13-F Datasheet

Current PartRFQ

B3100Q-13-F

Diodes IncorporatedIn Stock: 32354B3100Q-13-F Datasheet

Parametric EquivalentRFQ

SS3H10-E3/57T

Vishay General Semiconductor - Diodes DivisionIn Stock: 71989SS3H10-E3/57T Datasheet

DirectRFQ

CDBC3100-G

Comchip TechnologyIn Stock: 61405CDBC3100-G Datasheet

MFR RecommendedRFQ

MB310_R1_00001

Panjit International Inc.In Stock: 1524MB310_R1_00001 Datasheet

MFR RecommendedRFQ

S310

Fairchild SemiconductorIn Stock: 18701S310 Datasheet

MFR RecommendedRFQ

SK310-TP

Micro Commercial CoIn Stock: 7212SK310-TP Datasheet

MFR RecommendedRFQ

SS39

Taiwan Semiconductor CorporationIn Stock: 1234SS39 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the B3100-13-F are classified based on electrical parameter equivalence and packaging compatibility. The primary substitution criteria are:

Critical Parameters (Must Match):

• Voltage - DC Reverse (Vr) (Max): 100 V
• Current - Average Rectified (Io): 3 A
• Technology: Schottky
• Mounting Type: Surface Mount
• Package / Case: DO-214AB, SMC

Secondary Parameters (Allowable Variation):

• Voltage - Forward (Vf) (Max) @ If: Range 790–850 mV @ 3 A
• Current - Reverse Leakage @ Vr: 20–500 µA @ 100 V
• Operating Temperature - Junction: Minimum -50°C, Maximum ≥ 125°C
• Speed: Fast Recovery ≤ 500 ns, > 200 mA (Io)

Packaging Format Variations:

• Cut Tape (CT) & Digi-Reel® (primary part format)
• Tape & Reel (TR) (acceptable alternative for automated assembly)

Substitutes are organized into two categories: parametric equivalents from the same manufacturer with different packaging, and direct manufacturer alternatives from other suppliers that meet all critical electrical and mechanical parameters.

Parameter Comparison

Engineering Selection Recommendations

Parametric Equivalent (Same Manufacturer, Packaging Variant):

B3100Q-13-F is a direct parametric equivalent to B3100-13-F from Diodes Incorporated. Both parts share identical electrical specifications (100 V, 3 A, 790 mV forward voltage, 500 µA reverse leakage, -55°C to 125°C operating range). The sole difference is packaging format: B3100Q-13-F is supplied in Tape & Reel (TR) format versus the Cut Tape (CT) & Digi-Reel® format of the primary part. This substitute is suitable for automated assembly processes requiring reel-based component feeding. Both parts are RoHS3 compliant with MSL 1 rating.

Direct Manufacturer Alternatives (100 V Rating):

SS3H10-E3/57T (Vishay General Semiconductor) meets all critical electrical parameters with 100 V reverse voltage and 3 A current rating. Forward voltage is 800 mV at 3 A (10 mV higher than B3100-13-F). Reverse leakage is significantly lower at 20 µA versus 500 µA, indicating superior leakage performance. Operating temperature range extends to -65°C to 175°C, providing wider thermal coverage. RoHS3 compliant with MSL 1.

MB310_R1_00001 (Panjit International Inc.) provides 100 V, 3 A specifications with 800 mV forward voltage and 50 µA reverse leakage. Operating temperature range is -65°C to 175°C. Supplied in Tape & Reel format. RoHS3 compliant with MSL 1.

CDBC3100-G (Comchip Technology) meets 100 V, 3 A requirements with 850 mV forward voltage and 500 µA reverse leakage. Operating temperature range is -50°C to 125°C. Supplied in Tape & Reel format. RoHS3 compliant with MSL 1.

S310 (Fairchild Semiconductor) provides 100 V, 3 A with 850 mV forward voltage and 500 µA reverse leakage. Operating temperature range is -55°C to 150°C. RoHS3 compliant with MSL 1.

SK310-TP (Micro Commercial Co) meets 100 V, 3 A specifications with 850 mV forward voltage and 500 µA reverse leakage. Operating temperature range is -55°C to 150°C. Supplied in Tape & Reel format. RoHS3 compliant with MSL 1.

Limited Voltage Rating Alternative (90 V Rating):

SS39 (Taiwan Semiconductor Corporation) is rated for 90 V reverse voltage, which is 10 V below the B3100-13-F specification. This part is suitable only for applications where the actual operating voltage does not exceed 90 V. Forward voltage is 850 mV at 3 A. Reverse leakage is 100 µA at 90 V. Operating temperature range is -55°C to 150°C. RoHS3 compliant with MSL 1. This substitute introduces voltage derating and is not recommended for direct replacement in circuits designed for 100 V operation.

All substitute parts listed are active products with RoHS3 compliance and REACH unaffected status, ensuring regulatory alignment with the primary part.

Frequently Asked Questions (FAQ)

Q: Can B3100Q-13-F be used as a direct replacement for B3100-13-F?

A: Yes. B3100Q-13-F is a parametric equivalent with identical electrical specifications (100 V, 3 A, 790 mV forward voltage, 500 µA reverse leakage, -55°C to 125°C). The only difference is packaging format: B3100Q-13-F is supplied in Tape & Reel (TR) format while B3100-13-F is supplied in Cut Tape (CT) & Digi-Reel® format. Both are suitable for the same circuit application; packaging selection depends on assembly process requirements.

Q: What is the difference between the Vishay SS3H10-E3/57T and the Diodes B3100-13-F?

A: Both parts meet the critical specifications of 100 V reverse voltage and 3 A current rating in DO-214AB (SMC) package. The SS3H10-E3/57T has a forward voltage of 800 mV (10 mV higher) and significantly lower reverse leakage of 20 µA compared to 500 µA. The Vishay part also offers an extended operating temperature range of -65°C to 175°C versus -55°C to 125°C. These differences make the Vishay part suitable for applications requiring lower leakage or wider thermal operation.

Q: Why is SS39 listed as a substitute if it has a 90 V rating instead of 100 V?

A: SS39 is included in the substitute list because it was referenced in the original part's substitute field. However, the 90 V rating represents a 10 V reduction from the 100 V specification of B3100-13-F. SS39 is suitable only for applications where the actual operating voltage does not exceed 90 V. For circuits designed for 100 V operation, SS39 introduces voltage derating and is not recommended as a direct replacement.

Q: What packaging formats are available for these Schottky diodes?

A: The B3100-13-F is supplied in Cut Tape (CT) & Digi-Reel® format. Equivalent parts are available in Tape & Reel (TR) format, including B3100Q-13-F, CDBC3100-G, MB310_R1_00001, and SK310-TP. Tape & Reel format is preferred for automated pick-and-place assembly, while Cut Tape format is suitable for manual or semi-automated processes. Both formats contain the same component in the same DO-214AB (SMC) package.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed—B3100Q-13-F, SS3H10-E3/57T, CDBC3100-G, MB310_R1_00001, S310, SK310-TP, and SS39—are RoHS3 compliant with MSL 1 (unlimited moisture sensitivity level) and REACH unaffected status, matching the compliance profile of the primary B3100-13-F part.

Q: What is the significance of forward voltage differences (790 mV vs. 800 mV vs. 850 mV)?

A: Forward voltage (Vf) represents the voltage drop across the diode when conducting at rated current. The B3100-13-F specifies 790 mV at 3 A. Substitute parts range from 800 mV to 850 mV at 3 A. These variations (10–60 mV) are within typical Schottky diode manufacturing tolerances and do not prevent functional substitution. However, in power dissipation-sensitive applications, lower forward voltage (B3100-13-F at 790 mV) results in reduced heat generation compared to higher forward voltage alternatives.

Q: What does reverse leakage current indicate?

A: Reverse leakage current (Ir) is the small current that flows through the diode when reverse biased. The B3100-13-F specifies 500 µA at 100 V. Lower reverse leakage (such as SS3H10-E3/57T at 20 µA) indicates superior blocking performance and reduced power loss in reverse bias conditions. Higher leakage does not prevent substitution but may increase standby power consumption in applications with sustained reverse bias.

Q: Can I use a substitute part with a wider operating temperature range?

A: Yes. Parts with extended temperature ranges (such as SS3H10-E3/57T and MB310_R1_00001 rated to -65°C to 175°C) are suitable replacements for the B3100-13-F (-55°C to 125°C) in applications operating within the B3100-13-F temperature limits. The wider range provides additional design margin and flexibility for future applications with more demanding thermal requirements.

Q: What is the difference between Cut Tape and Tape & Reel packaging?

A: Cut Tape (CT) & Digi-Reel® format supplies components on continuous tape that is cut into individual strips, suitable for manual assembly or semi-automated processes. Tape & Reel (TR) format supplies components on continuous tape wound on a reel, optimized for fully automated pick-and-place assembly equipment. Both formats contain identical components in the same package; the choice depends on assembly process capability and volume requirements.