SSL22HR5G Equivalent & Substitute Parts

Part Overview

The SSL22HR5G is a Schottky rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 20 V DC reverse voltage and 2 A average rectified current in a DO-214AA (SMB) surface mount package. This component is classified as discontinued at DiGi Electronics, necessitating identification of equivalent and substitute parts for ongoing production and maintenance applications. The part carries automotive-grade qualification (AEC-Q101) and is RoHS3 compliant, making it suitable for automotive and industrial applications requiring fast recovery characteristics.

Key Parameters

Parameter	Value	Unit
Manufacturer Part Number	SSL22HR5G	—
Manufacturer	Taiwan Semiconductor Corporation	—
Technology	Schottky	—
Voltage - DC Reverse (Vr) (Max)	20	V
Current - Average Rectified (Io)	2	A
Voltage - Forward (Vf) (Max) @ If	410 mV @ 2 A	—
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Current - Reverse Leakage @ Vr	400	µA @ 20 V
Package / Case	DO-214AA, SMB	—
Operating Temperature - Junction	-55 to 125	°C
Grade	Automotive	—
Qualification	AEC-Q101	—
RoHS Status	ROHS3 Compliant	—
Product Status	Discontinued at DiGi Electronics	—

Substitute Part Grouping Explanation

Substitution of the SSL22HR5G is determined by strict equivalence across the following critical parameters:

Primary Substitution Criteria:

Voltage - DC Reverse (Vr) (Max): 20 V
Current - Average Rectified (Io): 2 A
Package / Case: DO-214AA, SMB
Technology: Schottky
Speed: Fast Recovery ≤ 500ns, > 200mA (Io)

Grouping Logic:

Direct Parametric Equivalents maintain identical electrical specifications and automotive qualification. These parts are interchangeable without circuit redesign:

SSL22 (Taiwan Semiconductor Corporation)
SSL22H (Taiwan Semiconductor Corporation)
SL22HE3_A/H (Vishay General Semiconductor - Diodes Division)
SL22HE3_A/I (Vishay General Semiconductor - Diodes Division)

Similar Substitutes meet the core voltage and current ratings but may differ in secondary parameters such as forward voltage, reverse leakage current, or capacitance. These require circuit validation:

B220-13-F (Diodes Incorporated)
B220A-13-F (Diodes Incorporated)
B220Q-13-F (Diodes Incorporated)

Reduced Current Alternatives are rated for 1 A instead of 2 A and are suitable only for applications with lower current requirements:

5817SMJ/TR13 (Microchip Technology)
CMSH1-20 BK PBFREE (Central Semiconductor Corp)
SK12-LTP (Micro Commercial Co)

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) [mV]	Ir @ Vr [µA]	Package	Grade	AEC-Q101	Product Status
SSL22HR5G	Taiwan Semiconductor Corporation	20	2	410 @ 2A	400 @ 20V	DO-214AA, SMB	Automotive	Yes	Discontinued
SSL22	Taiwan Semiconductor Corporation	20	2	410 @ 2A	400 @ 20V	DO-214AA, SMB	—	—	Active
SSL22H	Taiwan Semiconductor Corporation	20	2	410 @ 2A	400 @ 20V	DO-214AA, SMB	Automotive	Yes	Active
SL22HE3_A/H	Vishay General Semiconductor - Diodes Division	20	2	395 @ 1A	400 @ 20V	DO-214AA, SMB	Automotive	Yes	Active
SL22HE3_A/I	Vishay General Semiconductor - Diodes Division	20	2	395 @ 1A	400 @ 20V	DO-214AA, SMB	Automotive	Yes	Active
B220-13-F	Diodes Incorporated	20	2	500 @ 2A	500 @ 20V	DO-214AA, SMB	—	—	Active
B220Q-13-F	Diodes Incorporated	20	2	500 @ 2A	500 @ 20V	DO-214AA, SMB	Automotive	Yes	Active
5817SMJ/TR13	Microchip Technology	20	1	450 @ 1A	1000 @ 20V	DO-214AA	—	—	Active
CMSH1-20 BK PBFREE	Central Semiconductor Corp	20	1	550 @ 1A	500 @ 20V	DO-214AA, SMB	—	—	Active
SK12-LTP	Micro Commercial Co	20	1	500 @ 1A	500 @ 20V	DO-214AA, SMB	—	—	Not For New Designs

Engineering Selection Recommendations

For Direct Replacement (Automotive Applications):

SSL22H is the primary recommended substitute. It maintains identical electrical specifications to SSL22HR5G, carries automotive-grade qualification with AEC-Q101 certification, and is currently in active production status. This part is suitable for applications requiring automotive compliance and is available in Tape & Reel packaging.

SL22HE3_A/H and SL22HE3_A/I (Vishay) are alternative direct replacements with automotive qualification and AEC-Q101 certification. These parts exhibit slightly lower forward voltage (395 mV @ 1 A versus 410 mV @ 2 A) and include specified capacitance characteristics (50 pF @ 4 V, 1 MHz). Both are in active production.

For General Industrial Applications:

B220Q-13-F (Diodes Incorporated) provides automotive-grade qualification with AEC-Q101 certification and maintains the 20 V / 2 A rating. Forward voltage is elevated to 500 mV @ 2 A, and reverse leakage is 500 µA @ 20 V. This part is suitable for applications where the higher forward voltage drop is acceptable.

SSL22 (Taiwan Semiconductor Corporation) is a parametric equivalent without automotive grading. It is suitable for non-automotive applications requiring identical electrical performance and is currently in active production.

For Current-Limited Applications:

5817SMJ/TR13, CMSH1-20 BK PBFREE, and SK12-LTP are suitable only for applications requiring 1 A maximum current. These parts are not recommended for circuits designed for 2 A operation. SK12-LTP carries a "Not For New Designs" status and should be avoided in new product development.

Compliance Considerations:

All recommended substitutes maintain RoHS3 compliance and REACH unaffected status. Automotive applications must prioritize parts with AEC-Q101 qualification: SSL22H, SL22HE3_A/H, SL22HE3_A/I, and B220Q-13-F.

Frequently Asked Questions (FAQ)

Q: Can SSL22 be used as a direct replacement for SSL22HR5G?

A: SSL22 is a parametric equivalent with identical electrical specifications (20 V, 2 A, 410 mV forward voltage, 400 µA reverse leakage). However, SSL22 lacks automotive grading and AEC-Q101 certification. It is suitable for non-automotive applications. For automotive applications, SSL22H is the appropriate choice.

Q: What is the difference between SSL22H and SL22HE3_A/I?

A: Both parts maintain 20 V / 2 A ratings and automotive AEC-Q101 qualification. The primary difference is manufacturer: SSL22H is from Taiwan Semiconductor Corporation, while SL22HE3_A/I is from Vishay. Forward voltage specifications differ slightly (410 mV @ 2 A for SSL22H versus 395 mV @ 1 A for SL22HE3_A/I). Both are in active production and suitable for direct replacement.

Q: Can B220-13-F replace SSL22HR5G in automotive applications?

A: B220-13-F meets the 20 V / 2 A electrical requirements and is RoHS3 compliant. However, it lacks automotive grading and AEC-Q101 certification. For automotive applications, B220Q-13-F (the automotive-qualified variant) is the appropriate choice. B220-13-F is suitable for general industrial applications.

Q: Why are 5817SMJ/TR13, CMSH1-20 BK PBFREE, and SK12-LTP listed as alternatives if they are rated for only 1 A?

A: These parts are listed as reduced-current alternatives for applications where the circuit current requirement does not exceed 1 A. They maintain the 20 V reverse voltage rating and fast recovery characteristics. They are not suitable for circuits designed for 2 A operation.

Q: What packaging options are available for substitute parts?

A: All substitute parts are available in DO-214AA (SMB) surface mount package, matching the SSL22HR5G package. Packaging variants include Tape & Reel (TR), Cut Tape (CT) & Digi-Reel®, and Bulk. Verify packaging availability with the supplier for your specific procurement requirements.

Q: Is SK12-LTP recommended for new designs?

A: No. SK12-LTP carries a "Not For New Designs" product status. While it meets the 20 V / 1 A specifications, it should not be selected for new product development. Use SSL22H, SL22HE3_A/H, or SL22HE3_A/I for new designs requiring automotive qualification.

Q: How do forward voltage differences affect circuit performance?

A: Forward voltage differences between substitutes range from 395 mV to 550 mV depending on the part and test current. Higher forward voltage results in greater power dissipation and voltage drop across the diode. Verify that the circuit design accommodates the forward voltage specification of the selected substitute part.

Q: Are all substitute parts RoHS3 compliant?

A: All substitute parts listed are RoHS3 compliant. The SSL22HR5G original part is also RoHS3 compliant. Verify REACH status for your specific application; all listed parts are REACH unaffected.

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