S1BL RUG Equivalent & Substitute Parts

Part Overview

The S1BL RUG 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. This component is classified as Active product status and is ROHS3 compliant with unlimited moisture sensitivity level.

Substitute parts become necessary when the primary part number reaches end-of-life status, inventory constraints occur, or design requirements necessitate enhanced performance characteristics such as increased current rating or faster recovery time. The S1BL RUG maintains parametric equivalence with alternative part numbers that share identical electrical specifications within the allowed tolerance range.

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 @ 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	-

Substitute Part Grouping Explanation

Substitution eligibility for the S1BL RUG is determined by the following critical parameters:

Parametric Equivalence Criteria:

Voltage - DC Reverse (Vr) (Max): 100 V minimum
Current - Average Rectified (Io): 1 A minimum
Package / Case: DO-219AB (Sub SMA compatible)
Mounting Type: Surface Mount
RoHS Status: ROHS3 Compliant

Substitute Categories:

Parametric Equivalent (Direct Substitution): The S1BL part number from Taiwan Semiconductor Corporation meets all electrical and mechanical specifications identically to the S1BL RUG. This part differs only in packaging format (Cut Tape & Digi-Reel® versus Tape & Reel) and product status classification.

Similar Manufacturer Part (Enhanced Performance): The VS-2EFH01HM3/I from Vishay General Semiconductor - Diodes Division exceeds the minimum current rating (2 A versus 1 A) and features faster recovery characteristics (16 ns versus 1.8 µs). This part maintains the same 100 V reverse voltage rating and DO-219AB package, making it suitable for applications where higher current capacity or faster switching is beneficial. The VS-2EFH01HM3/I carries AEC-Q101 automotive qualification and Active product status.

Parameter Comparison

Parameter	S1BL RUG (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
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 (Sub SMA)	DO-219AB (Sub SMA)	DO-219AB (SMF)
Operating Temperature - Junction	-55 to 175 °C	-55 to 175 °C	-65 to 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)

Engineering Selection Recommendations

For Direct Replacement (Identical Specifications):

The S1BL part number is the parametric equivalent to S1BL RUG. Both parts share identical electrical characteristics and thermal operating range. The S1BL is available in higher inventory quantity (15,200 pcs) compared to the S1BL RUG (874 pcs). However, the S1BL carries a "Not For New Designs" product status designation, indicating this part number is in mature lifecycle phase. Selection of S1BL is appropriate for sustaining production of existing designs or when inventory availability is the primary constraint.

For Enhanced Performance Applications:

The VS-2EFH01HM3/I from Vishay provides superior electrical performance with doubled current capacity (2 A versus 1 A), significantly faster recovery time (16 ns versus 1.8 µs), and lower reverse leakage current (2 µA versus 5 µA). This part maintains Active product status and carries AEC-Q101 automotive qualification. The VS-2EFH01HM3/I is suitable for new designs or applications requiring improved switching characteristics and higher current handling capability within the same 100 V voltage class and DO-219AB package footprint.

Both substitute options maintain full ROHS3 compliance, unlimited moisture sensitivity level, and compatibility with surface mount assembly processes.

Frequently Asked Questions (FAQ)

Q: Can the S1BL be used as a direct replacement for S1BL RUG in existing designs?

A: Yes. The S1BL is a parametric equivalent with identical voltage rating (100 V), current rating (1 A), forward voltage drop (1.1 V @ 1 A), reverse recovery time (1.8 µs), and operating temperature range (-55 to 175 °C). The only differences are packaging format and product lifecycle status. Electrical performance and thermal characteristics are equivalent.

Q: What is the primary difference between S1BL RUG and VS-2EFH01HM3/I?

A: The VS-2EFH01HM3/I has a higher current rating (2 A versus 1 A) and significantly faster recovery time (16 ns versus 1.8 µs). Both maintain the same 100 V reverse voltage rating and DO-219AB package. The VS-2EFH01HM3/I is suitable for applications requiring higher current capacity or faster switching performance.

Q: Are all three parts compatible with the same PCB footprint?

A: Yes. All three parts use the DO-219AB package designation (Sub SMA or SMF variant). The physical footprint and land pattern are compatible for surface mount assembly on the same printed circuit board layout.

Q: What does "Not For New Designs" mean for the S1BL part number?

A: This designation indicates the S1BL is in mature or end-of-life phase and is maintained for sustaining existing production only. For new design projects, the S1BL RUG (Active status) or VS-2EFH01HM3/I (Active status) are preferred selections.

Q: Does the VS-2EFH01HM3/I require any circuit design changes compared to S1BL RUG?

A: No circuit design changes are required. The VS-2EFH01HM3/I is a pin-compatible, footprint-compatible substitute with superior electrical characteristics. The higher current rating and faster recovery time provide performance margin without requiring modifications to existing circuit topology or component values.

Q: Are all three parts RoHS compliant?

A: Yes. All three parts (S1BL RUG, S1BL, and VS-2EFH01HM3/I) are ROHS3 compliant with unlimited moisture sensitivity level (MSL 1), suitable for lead-free assembly processes.

Q: Which part should be selected for a new design?

A: For new designs, select either S1BL RUG (Active status, standard recovery characteristics) or VS-2EFH01HM3/I (Active status, enhanced performance with faster recovery and higher current capacity). Avoid S1BL due to its "Not For New Designs" status. Selection between S1BL RUG and VS-2EFH01HM3/I depends on application current requirements and switching speed specifications.

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