S210FA Schottky Diode 100V 2A Equivalent & Substitute Parts

Part Overview

The S210FA is a Schottky rectifier diode manufactured by onsemi, rated for 100V DC reverse voltage and 2A average rectified current in a surface mount SOD-123FA package. This component is classified as "Not For New Designs," indicating it has been superseded in onsemi's product portfolio. Equivalent and substitute parts are necessary for applications requiring continued sourcing, design flexibility, or alternative supplier options while maintaining electrical and mechanical compatibility.

Key Parameters

Parameter	Value	Unit
Technology	Schottky	—
Voltage - DC Reverse (Vr) (Max)	100	V
Current - Average Rectified (Io)	2	A
Voltage - Forward (Vf) (Max) @ If	850	mV @ 2 A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Mounting Type	Surface Mount	—
Operating Temperature - Junction	-55 to 150	°C
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the S210FA is determined by strict equivalence across the following electrical and mechanical parameters:

Primary Substitution Criteria:

Voltage - DC Reverse (Vr) (Max): 100V
Current - Average Rectified (Io): 2A
Technology: Schottky
Mounting Type: Surface Mount
Speed Classification: Fast Recovery ≤ 500ns, > 200mA (Io)
RoHS3 Compliance
MSL Rating: 1 (Unlimited)

Package Compatibility Considerations: Substitute parts are grouped into two package categories: SOD-123 variants (SOD-123FA, SOD-123FL, SOD-123W) and DO-219AB. Parts within the SOD-123 family are mechanically compatible with the original S210FA SOD-123FA package. The DO-219AB package (SS2FH10-M3/H) represents a different footprint and requires PCB layout verification before substitution.

Electrical Parameter Tolerance: Forward voltage (Vf) at 2A ranges from 830mV to 860mV across substitute parts, all within acceptable operating margins. Reverse leakage current varies significantly (100nA to 500µA @ 100V) but does not affect functional substitution for standard rectification applications. Capacitance specifications are provided where available and do not restrict substitution.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) @ 2A [mV]	Package / Case	Supplier Device Package	Product Status	Tj (Max) [°C]	RoHS Status
S210FA	onsemi	100	2	850	SOD-123W	SOD-123FA	Not For New Designs	150	ROHS3 Compliant
DSS210	SMC Diode Solutions	100	2	850	SOD-123F	SOD-123FL	Active	150	ROHS3 Compliant
PMEG10020ELRX	Nexperia USA Inc.	100	2	830	SOD-123W	SOD-123W	Active	175	ROHS3 Compliant
SS2FH10-M3/H	Vishay General Semiconductor - Diodes Division	100	2	860	DO-219AB	DO-219AB (SMF)	Active	175	ROHS3 Compliant
SS210LW	Taiwan Semiconductor Corporation	100	2	850	SOD-123W	SOD-123W	Active	150	ROHS3 Compliant
SS210LWH	Taiwan Semiconductor Corporation	100	2	850	SOD-123W	SOD-123W	Active	150	ROHS3 Compliant

Engineering Selection Recommendations

For Direct Footprint Compatibility (SOD-123W Package):

The following parts provide direct mechanical and electrical substitution without PCB layout modification:

PMEG10020ELRX (Nexperia USA Inc.): Active product status with extended maximum junction temperature (175°C vs. 150°C). Forward voltage is 20mV lower (830mV vs. 850mV), providing improved efficiency. REACH Unaffected status. Lowest inventory availability (1,445 pcs).
SS210LW (Taiwan Semiconductor Corporation): Active product status with identical electrical specifications to S210FA. Parametric equivalent with 27,987 pcs inventory. REACH Unaffected status.
SS210LWH (Taiwan Semiconductor Corporation): Active product status with identical electrical specifications to S210FA. Parametric equivalent with highest inventory availability (30,099 pcs). REACH Unaffected status.

For Alternative Package Compatibility (SOD-123FL Package):

DSS210 (SMC Diode Solutions): Active product status with SOD-123FL package variant. Electrical specifications match S210FA. REACH Affected status. Highest inventory availability (36,200 pcs).

For Alternative Footprint (DO-219AB Package):

SS2FH10-M3/H (Vishay General Semiconductor - Diodes Division): Active product status with extended maximum junction temperature (175°C). Forward voltage is 10mV higher (860mV vs. 850mV). Requires PCB layout verification due to different package footprint. 14,554 pcs inventory.

All substitute parts maintain ROHS3 compliance, MSL 1 (Unlimited) rating, and fast recovery speed classification. Product status is Active for all substitutes, eliminating obsolescence risk associated with the S210FA "Not For New Designs" designation.

Frequently Asked Questions (FAQ)

Q: Can I substitute S210FA with any of these parts without PCB modification?

A: Direct substitution without PCB modification is possible with PMEG10020ELRX, SS210LW, and SS210LWH, as these parts share the SOD-123W package footprint with S210FA. DSS210 uses SOD-123FL package, which may have minor footprint variations requiring verification. SS2FH10-M3/H uses DO-219AB package and requires PCB layout redesign.

Q: What is the difference between SOD-123FA, SOD-123FL, and SOD-123W packages?

A: SOD-123FA, SOD-123FL, and SOD-123W are all variants of the SOD-123 surface mount package family with similar mechanical dimensions. The primary differences are in lead frame design and supplier specifications. Parts specified as SOD-123W are mechanically compatible with S210FA. SOD-123FL (DSS210) may require footprint verification with your PCB design tool.

Q: Why does PMEG10020ELRX have a lower forward voltage (830mV vs. 850mV)?

A: Forward voltage variation within the 100V 2A Schottky diode category is a normal manufacturing characteristic. The 20mV difference in PMEG10020ELRX represents improved performance and lower power dissipation. This is not a compatibility issue and is acceptable for direct substitution.

Q: Is the extended junction temperature rating (175°C) of PMEG10020ELRX and SS2FH10-M3/H beneficial?

A: Extended maximum junction temperature rating provides additional thermal margin in high-temperature applications. However, this does not affect substitution compatibility for applications designed for the S210FA 150°C rating. The higher rating offers design flexibility for future thermal stress scenarios.

Q: What does "REACH Affected" status mean for DSS210?

A: REACH Affected indicates the part is subject to REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) regulatory requirements. This does not affect electrical or mechanical compatibility but may require additional compliance documentation for certain supply chain applications. REACH Unaffected parts (PMEG10020ELRX, SS210LW, SS210LWH, SS2FH10-M3/H) do not require this documentation.

Q: Can I use SS2FH10-M3/H as a drop-in replacement?

A: SS2FH10-M3/H is electrically equivalent but uses DO-219AB package instead of SOD-123W. This requires PCB layout modification and cannot be used as a drop-in replacement without redesign. Use this part only if your PCB design accommodates DO-219AB footprint.

Q: Which substitute part has the best inventory availability?

A: SS210LWH has the highest inventory availability at 30,099 pcs, followed by DSS210 at 36,200 pcs. Both are active products with no obsolescence risk.

Q: Are all substitute parts RoHS3 compliant?

A: Yes, all substitute parts listed are ROHS3 Compliant, matching the S210FA compliance status.

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