B220-13 Schottky Diode Equivalent & Substitute Parts

Part Overview

The B220-13 is a Schottky rectifier diode manufactured by Diodes Incorporated, rated for 20 V DC reverse voltage and 2 A average rectified current in a Surface Mount SMB (DO-214AA) package. This part is discontinued at DiGi Electronics, necessitating identification of equivalent and substitute components for ongoing production and repair applications. Equivalent parts maintain identical electrical specifications, while substitute parts offer compatible performance within the same application category with potential variations in secondary parameters.

Key Parameters

Parameter	Value
Technology	Schottky
Voltage - DC Reverse (Vr) (Max)	20 V
Current - Average Rectified (Io)	2 A
Voltage - Forward (Vf) (Max) @ If	500 mV @ 2 A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)
Package / Case	DO-214AA, SMB
Mounting Type	Surface Mount
Operating Temperature - Junction	-65°C ~ 150°C

Substitute Part Grouping Explanation

Substitution of the B220-13 is determined by the following critical parameters:

Primary Substitution Criteria:

Voltage rating: 20 V DC reverse voltage (minimum requirement)
Current rating: 2 A average rectified current (minimum requirement)
Technology: Schottky diode
Package: DO-214AA, SMB (Surface Mount)
Mounting: Surface Mount

Secondary Compatibility Factors:

Forward voltage drop at rated current
Reverse leakage current
Operating temperature range
RoHS compliance status
Product availability and lifecycle status

Parts are grouped into three categories: Parametric Equivalents (identical electrical specifications), Manufacturer Recommended Substitutes (compatible performance with potential current or voltage variations), and Cross-Manufacturer Alternatives (functionally equivalent from different manufacturers).

Parameter Comparison

Part Number	Manufacturer	Vr (Max)	Io	Vf @ If	Ir @ Vr	Product Status	RoHS Status	Inventory
B220-13	Diodes Incorporated	20 V	2 A	500 mV @ 2 A	500 µA @ 20 V	Discontinued	Non-compliant	3,100 Pcs
B220-13-F	Diodes Incorporated	20 V	2 A	500 mV @ 2 A	500 µA @ 20 V	Active	ROHS3 Compliant	65,310 Pcs
B220Q-13-F	Diodes Incorporated	20 V	2 A	500 mV @ 2 A	500 µA @ 20 V	Active	ROHS3 Compliant	3,868 Pcs
SS22T3G	onsemi	20 V	2 A	500 mV @ 2 A	400 µA @ 40 V	Last Time Buy	ROHS3 Compliant	33,245 Pcs
SL22-E3/52T	Vishay General Semiconductor	20 V	2 A	440 mV @ 2 A	400 µA @ 20 V	Active	ROHS3 Compliant	10,200 Pcs
CMSH2-20 TR13 PBFREE	Central Semiconductor Corp	20 V	2 A	500 mV @ 2 A	500 µA @ 20 V	Active	ROHS3 Compliant	11,320 Pcs
SK32B-LTP	Micro Commercial Co	20 V	3 A	500 mV @ 3 A	500 µA @ 20 V	Not For New Designs	ROHS3 Compliant	6,836 Pcs
SK42BL-TP	Micro Commercial Co	20 V	4 A	450 mV @ 4 A	500 µA @ 20 V	Not For New Designs	ROHS3 Compliant	2,788 Pcs
STPS2L25U	STMicroelectronics	25 V	2 A	450 mV @ 2 A	90 µA @ 25 V	Active	ROHS3 Compliant	16,391 Pcs

Engineering Selection Recommendations

Tier 1: Direct Parametric Equivalents (Recommended for New Designs)

B220-13-F (Diodes Incorporated) is the primary replacement for the discontinued B220-13. This part maintains identical electrical specifications including 20 V reverse voltage, 2 A current rating, and 500 mV forward voltage drop at 2 A. The B220-13-F is ROHS3 compliant, carries Active product status, and offers the highest inventory availability (65,310 units). Packaging is available in Cut Tape and Digi-Reel formats, suitable for both manual and automated assembly.

B220Q-13-F (Diodes Incorporated) provides an automotive-qualified alternative with AEC-Q101 certification and identical electrical performance. This variant is ROHS3 compliant and Active, with 3,868 units in stock. Selection of this part is appropriate for automotive or mission-critical applications requiring formal qualification documentation.

CMSH2-20 TR13 PBFREE (Central Semiconductor Corp) matches all primary electrical specifications with 20 V reverse voltage and 2 A current rating. This part is ROHS3 compliant, Active, and available in Tape & Reel packaging with 11,320 units in inventory. Forward voltage and reverse leakage characteristics are identical to the B220-13.

Tier 2: Cross-Manufacturer Equivalents (Active Product Status)

SL22-E3/52T (Vishay General Semiconductor) provides 20 V / 2 A performance with slightly lower forward voltage (440 mV @ 2 A) and reduced reverse leakage (400 µA @ 20 V). This part is ROHS3 compliant and Active with 10,200 units available. Operating temperature range is -55°C to 125°C, which is narrower than the B220-13 specification.

SS22T3G (onsemi) delivers 20 V / 2 A specifications with identical forward voltage (500 mV @ 2 A) and reduced reverse leakage (400 µA @ 40 V). This part carries Last Time Buy status and ROHS3 compliance, with 33,245 units in stock. The wider operating temperature range (-55°C to 150°C) accommodates extended thermal environments.

Tier 3: Higher Current Rated Substitutes (Backward Compatible)

SK32B-LTP (Micro Commercial Co) provides 20 V reverse voltage with increased current rating of 3 A. This part is ROHS3 compliant but marked Not For New Designs. The higher current rating allows operation in applications requiring additional thermal margin or higher transient current handling.

SK42BL-TP (Micro Commercial Co) offers 20 V reverse voltage with 4 A current rating and reduced forward voltage (450 mV @ 4 A). This part is ROHS3 compliant but marked Not For New Designs. The higher current capacity provides additional design margin for power dissipation.

Tier 4: Elevated Voltage Substitute

STPS2L25U (STMicroelectronics) provides 25 V reverse voltage with 2 A current rating, representing a voltage upgrade from the B220-13. This part is ROHS3 compliant and Active with 16,391 units in inventory. The elevated voltage rating accommodates applications with higher transient voltage stress, while forward voltage is reduced to 450 mV @ 2 A and reverse leakage is significantly lower at 90 µA @ 25 V.

Frequently Asked Questions (FAQ)

Q: Can B220-13-F be used as a direct replacement for B220-13?

A: Yes. B220-13-F is a parametric equivalent with identical electrical specifications: 20 V reverse voltage, 2 A current rating, 500 mV forward voltage drop at 2 A, and fast recovery characteristics. The primary difference is product status (Active vs. Discontinued) and RoHS compliance (ROHS3 vs. Non-compliant). B220-13-F is the recommended replacement for new designs and production continuity.

Q: What is the difference between B220-13-F and B220Q-13-F?

A: Both parts maintain identical electrical specifications. B220Q-13-F includes automotive qualification (AEC-Q101) and is designated for automotive applications. Selection depends on application requirements: B220-13-F for general industrial use, B220Q-13-F for automotive or mission-critical systems requiring formal qualification documentation.

Q: Can I use SK32B-LTP or SK42BL-TP as replacements?

A: These parts are backward compatible substitutes with higher current ratings (3 A and 4 A respectively). Both maintain 20 V reverse voltage and fast recovery characteristics. The higher current ratings provide additional thermal margin and transient current handling capability. However, both parts carry Not For New Designs status, limiting their suitability for new product development.

Q: What is the advantage of STPS2L25U over B220-13?

A: STPS2L25U provides elevated reverse voltage (25 V vs. 20 V), lower forward voltage (450 mV vs. 500 mV @ 2 A), and significantly reduced reverse leakage (90 µA vs. 500 µA @ 20 V). This part is suitable for applications requiring higher voltage stress tolerance or lower power dissipation. STPS2L25U is Active and ROHS3 compliant with high inventory availability.

Q: Are all substitute parts available in the same SMB package?

A: Yes. All listed substitute parts use DO-214AA (SMB) Surface Mount packaging, ensuring mechanical and thermal compatibility with B220-13 PCB layouts. Packaging format variations (Cut Tape, Digi-Reel, Tape & Reel) affect supply chain logistics but do not impact electrical or mechanical performance.

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

A: STPS2L25U exhibits the lowest reverse leakage at 90 µA @ 25 V. SL22-E3/52T and SS22T3G both provide 400 µA @ 20 V and 40 V respectively, representing a 20% reduction compared to the B220-13 specification of 500 µA @ 20 V.

Q: Are all substitute parts RoHS compliant?

A: All listed substitute parts are ROHS3 compliant. The original B220-13 is RoHS non-compliant. This compliance difference is significant for applications subject to RoHS regulations or customer requirements mandating lead-free components.

Q: What is the operating temperature range difference between substitutes?

A: B220-13, B220-13-F, B220Q-13-F, SS22T3G, and CMSH2-20 TR13 PBFREE support -65°C to 150°C or -55°C to 150°C. SL22-E3/52T has a narrower range of -55°C to 125°C. SK32B-LTP and SK42BL-TP support -55°C to 150°C. Selection depends on application thermal requirements.

Q: Can I substitute based on forward voltage alone?

A: No. Forward voltage is one of multiple critical parameters. Reverse voltage rating, current capacity, reverse leakage, and operating temperature range must all be verified for compatibility. A part with lower forward voltage but insufficient reverse voltage rating or current capacity is not a valid substitute.

Q: What inventory considerations should guide part selection?

A: B220-13-F offers the highest inventory (65,310 units), followed by SS22T3G (33,245 units) and STPS2L25U (16,391 units). Higher inventory availability reduces supply chain risk and lead time. Parts marked Last Time Buy (SS22T3G) or Not For New Designs (SK32B-LTP, SK42BL-TP) should be avoided for new product development despite adequate current stock.

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