Equivalent & Substitute Parts for S1BL

Part Overview

The S1BL 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 part is classified as "Not For New Designs," indicating it has reached end-of-life status. Identification of equivalent and substitute parts is necessary for design continuity, legacy system support, and component sourcing when original inventory becomes unavailable.

Key Parameters

Parameter	Value
Voltage - DC Reverse (Vr) (Max)	100 V
Current - Average Rectified (Io)	1 A
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 1 A
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°C ~ 175°C
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the S1BL are classified into two categories based on electrical and mechanical compatibility:

Parametric Equivalents (Direct Replacements): Parts that maintain identical electrical specifications and package form factor. These parts share the same 100 V reverse voltage rating, 1 A current rating, 1.1 V forward voltage drop, 1.8 µs reverse recovery time, and DO-219AB Sub SMA package. Parametric equivalents differ only in manufacturing date codes or internal process variations, indicated by suffix designations (M2G, MHG, MTG, RFG, RHG, RQG, RTG, RUG, RVG). All parametric equivalents maintain Active product status, ensuring continued availability and manufacturing support.

Manufacturer Recommended Substitute (Voltage Upgrade): The S1DLW represents an upgraded alternative with enhanced reverse voltage rating (200 V) while maintaining the same 1 A current capacity and 1.1 V forward voltage characteristic. This part transitions to a different package form (SOD-123W) and requires PCB layout modification. The S1DLW is classified as Active and suitable for new designs, providing a forward-compatible migration path.

Substitution eligibility is determined by:

Reverse voltage rating equal to or greater than 100 V
Average rectified current rating equal to or greater than 1 A
Forward voltage drop at 1 A not exceeding 1.1 V
Operating temperature range encompassing -55°C to 175°C
RoHS3 compliance and MSL 1 rating

Parameter Comparison

Part Number	Manufacturer	Vr (Max)	Io	Vf @ 1A	trr	Package	Product Status	Inventory
S1BL	Taiwan Semiconductor Corporation	100 V	1 A	1.1 V	1.8 µs	DO-219AB (Sub SMA)	Not For New Designs	15200 Pcs
S1BL M2G	Taiwan Semiconductor Corporation	100 V	1 A	1.1 V	1.8 µs	DO-219AB (Sub SMA)	Active	840 Pcs
S1BL MHG	Taiwan Semiconductor Corporation	100 V	1 A	1.1 V	1.8 µs	DO-219AB (Sub SMA)	Active	1077 Pcs
S1BL MTG	Taiwan Semiconductor Corporation	100 V	1 A	1.1 V	1.8 µs	DO-219AB (Sub SMA)	Active	702 Pcs
S1BL RFG	Taiwan Semiconductor Corporation	100 V	1 A	1.1 V	1.8 µs	DO-219AB (Sub SMA)	Active	726 Pcs
S1BL RHG	Taiwan Semiconductor Corporation	100 V	1 A	1.1 V	1.8 µs	DO-219AB (Sub SMA)	Active	1167 Pcs
S1BL RQG	Taiwan Semiconductor Corporation	100 V	1 A	1.1 V	1.8 µs	DO-219AB (Sub SMA)	Active	1044 Pcs
S1BL RTG	Taiwan Semiconductor Corporation	100 V	1 A	1.1 V	1.8 µs	DO-219AB (Sub SMA)	Active	995 Pcs
S1BL RUG	Taiwan Semiconductor Corporation	100 V	1 A	1.1 V	1.8 µs	DO-219AB (Sub SMA)	Active	874 Pcs
S1BL RVG	Taiwan Semiconductor Corporation	100 V	1 A	1.1 V	1.8 µs	DO-219AB (Sub SMA)	Active	1121 Pcs
S1DLW	Taiwan Semiconductor Corporation	200 V	1 A	1.1 V	Standard Recovery	SOD-123W	Active	21155 Pcs

Engineering Selection Recommendations

For Direct Replacement (Same Package, Same Specifications):

Select from the parametric equivalent parts S1BL M2G, S1BL MHG, S1BL MTG, S1BL RFG, S1BL RHG, S1BL RQG, S1BL RTG, S1BL RUG, or S1BL RVG when maintaining existing PCB layouts and electrical requirements. All parametric equivalents are classified as Active products, ensuring manufacturing continuity and long-term availability. These parts are electrically and mechanically interchangeable with the original S1BL, requiring no circuit modifications or PCB redesign. Selection among parametric equivalents may be based on inventory availability and packaging format (Tape & Reel available for S1BL RUG).

For Voltage-Upgraded Applications:

The S1DLW is the manufacturer-recommended substitute when circuit design permits a higher reverse voltage rating (200 V). This part maintains the 1 A current rating and 1.1 V forward voltage characteristic, supporting direct functional replacement in applications where the original 100 V specification provides design margin. The S1DLW requires PCB layout modification due to the SOD-123W package transition from the original DO-219AB Sub SMA form factor. The S1DLW is classified as Active and suitable for new designs, providing a forward-compatible migration strategy for legacy system updates.

Compliance Considerations:

All substitute parts maintain RoHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, ensuring compatibility with standard manufacturing and storage processes. REACH compliance status is unaffected across all listed parts.

Frequently Asked Questions (FAQ)

Q: Can S1BL parametric equivalents be used interchangeably on the same PCB?

A: Yes. All parametric equivalent parts (S1BL M2G, S1BL MHG, S1BL MTG, S1BL RFG, S1BL RHG, S1BL RQG, S1BL RTG, S1BL RUG, S1BL RVG) share identical electrical specifications and the same DO-219AB Sub SMA package form factor. No circuit modifications or PCB layout changes are required for substitution.

Q: What is the primary difference between S1BL parametric equivalents?

A: Parametric equivalents differ only in manufacturing date codes and internal process variations, indicated by suffix designations. Electrical performance and package dimensions remain identical across all variants.

Q: Why is the S1DLW classified as a manufacturer-recommended substitute rather than a direct equivalent?

A: The S1DLW features a 200 V reverse voltage rating compared to the S1BL's 100 V rating and uses a different package form (SOD-123W versus DO-219AB Sub SMA). While electrically compatible in function, the package change requires PCB layout modification, preventing direct drop-in replacement.

Q: Can the S1DLW be used in applications originally designed for the S1BL?

A: The S1DLW is functionally compatible when the circuit design permits a higher reverse voltage rating. The 200 V rating provides additional design margin in applications where the original 100 V specification is not a limiting constraint. PCB layout modification is required due to package differences.

Q: What packaging formats are available for S1BL substitutes?

A: Parametric equivalents are available in Cut Tape (CT) and Digi-Reel® formats for the original S1BL, and Tape & Reel (TR) format for S1BL RUG. The S1DLW is supplied in Tape & Reel (TR) format. Packaging selection should align with assembly process requirements.

Q: Are all substitute parts suitable for new design implementations?

A: Parametric equivalent parts (S1BL M2G through S1BL RVG) are classified as Active and suitable for new designs. The original S1BL is classified as "Not For New Designs." The S1DLW is classified as Active and suitable for new designs, making it appropriate for forward-looking applications.

Q: What is the inventory status for substitute parts?

A: Parametric equivalents range from 702 to 1167 Pcs in stock. The S1DLW has the highest inventory at 21155 Pcs. The original S1BL has 15200 Pcs available. Inventory levels should be verified at time of procurement.

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