S1BL RHG General Purpose Rectifier Diode Equivalent & Substitute Parts

Part Overview

The S1BL RHG is a general purpose rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 100 V DC reverse voltage and 1 A average rectified current in a Sub SMA surface mount package (DO-219AB). This component is classified as Active product status and is ROHS3 compliant with unlimited moisture sensitivity level (MSL 1).

Substitute parts are identified when equivalent electrical performance and mechanical compatibility are maintained across the specified parameter set. The S1BL RHG serves as a reference point for locating functionally compatible alternatives within the same package family and voltage/current rating class.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	100	V
Current - Average Rectified (Io)	1	A
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 1 A	V
Reverse Recovery Time (trr)	1.8	µs
Current - Reverse Leakage @ Vr	5	µA @ 100 V
Capacitance @ Vr, F	9	pF @ 4V, 1MHz
Package / Case	DO-219AB	Sub SMA
Operating Temperature - Junction	-55 to 175	°C
RoHS Status	ROHS3 Compliant	-
Moisture Sensitivity Level (MSL)	1	Unlimited

Substitute Part Grouping Explanation

Substitute parts for the S1BL RHG are identified based on the following electrical and mechanical compatibility criteria:

Primary Substitution Criteria:

Voltage - DC Reverse (Vr) (Max): 100 V minimum
Package / Case: DO-219AB (Sub SMA surface mount)
Mounting Type: Surface Mount
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level: MSL 1

Secondary Compatibility Parameters:

Current - Average Rectified (Io): Equal or greater rating
Voltage - Forward (Vf): Within acceptable operating range
Operating Temperature Range: Minimum -55°C to 175°C coverage
Reverse Recovery Time (trr): Standard recovery classification

Parts are grouped into two categories:

Parametric Equivalent: Parts with identical electrical specifications and package designation, differing only in product status or packaging format (tape & reel vs. cut tape).

Similar Manufacturer Part: Parts with the same voltage and package but different current ratings or recovery speed characteristics, suitable for applications where higher current capacity or faster switching is acceptable.

Parameter Comparison

Parameter	S1BL RHG (Main)	S1BL (Parametric Equivalent)	VS-2EFH01HM3/I (Similar)
Manufacturer	Taiwan Semiconductor Corporation	Taiwan Semiconductor Corporation	Vishay General Semiconductor - Diodes Division
Voltage - DC Reverse (Vr) (Max)	100 V	100 V	100 V
Current - Average Rectified (Io)	1 A	1 A	2 A
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 1 A	1.1 V @ 1 A	950 mV @ 2 A
Speed Classification	Standard Recovery >500ns, > 200mA (Io)	Standard Recovery >500ns, > 200mA (Io)	Fast Recovery =< 500ns, > 200mA (Io)
Reverse Recovery Time (trr)	1.8 µs	1.8 µs	16 ns
Current - Reverse Leakage @ Vr	5 µA @ 100 V	5 µA @ 100 V	2 µA @ 100 V
Package / Case	DO-219AB	DO-219AB	DO-219AB
Supplier Device Package	Sub SMA	Sub SMA	DO-219AB (SMF)
Operating Temperature - Junction	-55°C ~ 175°C	-55°C ~ 175°C	-65°C ~ 175°C
Product Status	Active	Not For New Designs	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Qualification	-	-	AEC-Q101

Engineering Selection Recommendations

S1BL (Parametric Equivalent): The S1BL is electrically and mechanically identical to the S1BL RHG with matching voltage, current, and thermal specifications. However, this part carries a "Not For New Designs" product status designation. Selection of this substitute is appropriate only for legacy system maintenance, repair, or continuation of existing production runs where design changes are not permitted. For new circuit designs, the S1BL RHG (Active status) is the preferred choice.

VS-2EFH01HM3/I (Similar Manufacturer Part): The VS-2EFH01HM3/I is manufactured by Vishay and provides a 100 V rated diode in the same DO-219AB package. This part differs in three key aspects: (1) Current rating is doubled to 2 A, (2) Recovery speed is classified as Fast Recovery (16 ns trr) versus Standard Recovery (1.8 µs trr), and (3) it carries AEC-Q101 automotive qualification. The VS-2EFH01HM3/I is suitable for applications requiring higher current capacity or faster switching performance. The lower forward voltage drop (950 mV @ 2 A) and reduced reverse leakage (2 µA) provide improved efficiency characteristics. This part maintains Active product status and ROHS3 compliance. Selection is appropriate when circuit requirements permit the higher current rating and faster recovery characteristics, or when automotive-grade qualification is mandated.

Frequently Asked Questions (FAQ)

Q: Can the S1BL substitute for the S1BL RHG in new designs?

A: The S1BL is electrically equivalent but carries "Not For New Designs" status. For new circuit designs, use the S1BL RHG (Active status). The S1BL is reserved for legacy system support and existing production continuation.

Q: Is the VS-2EFH01HM3/I a direct replacement for the S1BL RHG?

A: The VS-2EFH01HM3/I is mechanically compatible (same DO-219AB package) and electrically compatible for the 100 V voltage class. However, it is not a direct replacement due to differences in current rating (2 A vs. 1 A) and recovery speed (16 ns vs. 1.8 µs). Use this substitute only when the circuit design accommodates the higher current capacity and faster switching characteristics, or when automotive qualification is required.

Q: What are the key parameters that determine substitutability?

A: Substitutability is determined by: (1) Voltage - DC Reverse rating of 100 V or greater, (2) DO-219AB package compatibility, (3) Surface mount mounting type, (4) ROHS3 compliance, and (5) MSL 1 moisture sensitivity level. Current rating and recovery speed are secondary parameters that must be verified against circuit requirements.

Q: Can I use a higher current rated diode in place of the S1BL RHG?

A: Yes, provided all other electrical and mechanical parameters are compatible. A higher current rating (such as the 2 A VS-2EFH01HM3/I) is acceptable in circuits designed for the S1BL RHG's 1 A specification. The circuit will operate within safe margins. Verify that the faster recovery speed (if applicable) does not introduce switching noise or EMI issues in the specific application.

Q: What is the difference between Standard Recovery and Fast Recovery diodes?

A: Standard Recovery diodes (S1BL RHG, trr = 1.8 µs) have slower reverse recovery times and are suitable for low-frequency and general purpose applications. Fast Recovery diodes (VS-2EFH01HM3/I, trr = 16 ns) switch faster and generate less reverse recovery current, making them suitable for higher frequency switching applications and power conversion circuits. Fast Recovery diodes typically exhibit lower reverse leakage current.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All parts listed (S1BL RHG, S1BL, and VS-2EFH01HM3/I) are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: What is the significance of AEC-Q101 qualification on the VS-2EFH01HM3/I?

A: AEC-Q101 is an automotive industry qualification standard. The VS-2EFH01HM3/I meets this qualification, making it suitable for automotive and mission-critical applications where component reliability and traceability are mandated. The S1BL RHG does not carry this qualification and is not suitable for applications requiring automotive-grade components.

Q: Can I mix different substitute parts in the same circuit board?

A: Yes, provided each part location is verified against its specific circuit requirements. However, for consistency and supply chain management, using a single part number across identical circuit functions is recommended. If mixing is necessary, document the substitution rationale and verify thermal and electrical performance across the full operating range.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message