RS1JB-13 Equivalent & Substitute Parts

Part Overview

The RS1JB-13 is a general-purpose rectifier diode manufactured by Diodes Incorporated, rated for 600 V DC reverse voltage and 1 A average rectified current in a surface mount SMB (DO-214AA) package. This component is classified as discontinued at DiGi Electronics, necessitating identification of equivalent and substitute parts for ongoing design requirements and procurement needs. Active alternatives with identical or superior electrical characteristics are available from multiple manufacturers.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	600	V
Current - Average Rectified (Io)	1	A
Voltage - Forward (Vf) (Max) @ If	1.3	V @ 1 A
Reverse Recovery Time (trr)	250	ns
Current - Reverse Leakage @ Vr	5	µA @ 600 V
Mounting Type	Surface Mount	—
Package / Case	DO-214AA, SMB	—
Operating Temperature - Junction	-65°C ~ 150°C	—
Technology	Standard	—
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	—

Substitute Part Grouping Explanation

Substitution of the RS1JB-13 is determined by the following critical parameters:

Mandatory Matching Parameters:

Voltage - DC Reverse (Vr) (Max): 600 V
Current - Average Rectified (Io): 1 A minimum
Mounting Type: Surface Mount
Package / Case: DO-214AA, SMB
Technology: Standard
Speed: Fast Recovery ≤ 500ns, > 200mA (Io)

Acceptable Variation Parameters:

Voltage - Forward (Vf) (Max) @ If: Up to 1.7 V @ rated current
Reverse Recovery Time (trr): Up to 250 ns
Current - Reverse Leakage @ Vr: Up to 150 µA @ 600 V
Operating Temperature - Junction: Minimum -55°C to maximum 175°C

Substitute parts are grouped into two categories: Parametric Equivalents (identical electrical specifications) and Manufacturer Recommended Alternatives (functionally compatible with minor parameter variations). Parts with higher current ratings (2 A, 3 A) are listed for reference but are not direct substitutes for 1 A applications.

Parameter Comparison

Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) @ If [V]	trr [ns]	Ir @ Vr [µA]	Tj (Max) [°C]	Product Status	RoHS Status
RS1JB-13	Diodes Incorporated	600	1	1.3 @ 1 A	250	5 @ 600 V	150	Discontinued	Non-compliant
RS1JB-13-F	Diodes Incorporated	600	1	1.3 @ 1 A	250	5 @ 600 V	150	Active	ROHS3 Compliant
ER1J-LTP	Micro Commercial Co	600	1	1.7 @ 1 A	35	5 @ 600 V	175	Active	ROHS3 Compliant
MUR160S	Taiwan Semiconductor Corporation	600	1	1.25 @ 1 A	50	150 @ 600 V	175	Active	ROHS3 Compliant
STTH1L06U	STMicroelectronics	600	1	1.3 @ 1 A	80	1 @ 600 V	175	Active	ROHS3 Compliant
STTH1R06U	STMicroelectronics	600	1	1.7 @ 1 A	45	1 @ 600 V	175	Active	ROHS3 Compliant

Engineering Selection Recommendations

Primary Substitute: RS1JB-13-F

The RS1JB-13-F is the direct parametric equivalent manufactured by Diodes Incorporated. This part maintains identical electrical specifications to the RS1JB-13 while offering active product status and ROHS3 compliance. The tape and reel packaging format supports high-volume production environments. This is the preferred replacement for direct substitution without circuit redesign.

Secondary Substitutes: STTH1L06U and STTH1R06U

Both STMicroelectronics parts meet the 600 V, 1 A requirements with active status and ROHS3 compliance. The STTH1L06U provides forward voltage matching (1.3 V @ 1 A) with improved reverse leakage characteristics (1 µA vs. 5 µA). The STTH1R06U offers faster reverse recovery time (45 ns vs. 250 ns) with slightly elevated forward voltage (1.7 V @ 1 A). Both support extended junction temperature operation to 175°C.

Alternative Substitute: ER1J-LTP

The Micro Commercial Co ER1J-LTP maintains 600 V, 1 A ratings with active status and ROHS3 compliance. This part features significantly faster reverse recovery (35 ns) and extended junction temperature range (-65°C to 175°C), providing enhanced performance characteristics for applications requiring improved switching speed.

Alternative Substitute: MUR160S

The Taiwan Semiconductor Corporation MUR160S meets voltage and current requirements with active status and ROHS3 compliance. This part exhibits forward voltage of 1.25 V @ 1 A and reverse recovery time of 50 ns. Note that reverse leakage current is elevated at 150 µA @ 600 V, which may impact applications with stringent leakage specifications.

Higher Current Alternatives: STTH2L06U, STTH2R06U, STTH3L06U, STTH3R06U

These parts are rated for 2 A and 3 A respectively and are not direct substitutes for 1 A applications. They are listed for reference in designs requiring increased current capacity with identical 600 V voltage rating and SMB packaging.

Frequently Asked Questions (FAQ)

Q: Can RS1JB-13-F be used as a direct replacement for RS1JB-13?

A: Yes. The RS1JB-13-F is a parametric equivalent with identical electrical specifications (600 V, 1 A, 1.3 V forward voltage, 250 ns reverse recovery time). The primary difference is product status (active vs. discontinued) and RoHS compliance (ROHS3 vs. non-compliant). No circuit modifications are required.

Q: What is the difference between STTH1L06U and STTH1R06U?

A: Both parts meet the 600 V, 1 A core requirements. The STTH1L06U provides forward voltage of 1.3 V @ 1 A with reverse recovery time of 80 ns. The STTH1R06U provides forward voltage of 1.7 V @ 1 A with faster reverse recovery time of 45 ns. Selection depends on whether forward voltage drop or switching speed is the priority in the application.

Q: Are STTH2L06U and STTH3L06U suitable replacements?

A: No. These parts are rated for 2 A and 3 A respectively and are not direct substitutes for 1 A applications. They share the same 600 V voltage rating and SMB package but have different current ratings. Use these only if circuit redesign permits higher current capacity.

Q: What does RoHS compliance mean for this application?

A: ROHS3 compliance indicates the part meets Restriction of Hazardous Substances regulations, restricting lead and other hazardous materials. The original RS1JB-13 is non-compliant. All recommended substitutes are ROHS3 compliant, supporting modern procurement and environmental standards.

Q: Does packaging format affect substitution?

A: All recommended substitutes use the DO-214AA (SMB) surface mount package, ensuring mechanical and electrical compatibility. Packaging format variations (tape and reel vs. cut tape) affect procurement and handling but not circuit performance.

Q: What is reverse recovery time and why does it vary among substitutes?

A: Reverse recovery time (trr) is the interval required for a diode to stop conducting after the applied voltage reverses. The RS1JB-13 specifies 250 ns. Substitutes range from 35 ns to 250 ns. Faster recovery times reduce switching losses and electromagnetic interference, beneficial in high-frequency applications. Slower recovery times are acceptable in low-frequency or DC applications.

Q: Can MUR160S be used if reverse leakage current is a concern?

A: The MUR160S exhibits reverse leakage of 150 µA @ 600 V, compared to 5 µA for the RS1JB-13. This elevated leakage may be unsuitable for applications with strict leakage specifications or high-impedance circuits. STTH1L06U (1 µA) or STTH1R06U (1 µA) are preferred alternatives for leakage-sensitive designs.

Q: What operating temperature range should be considered?

A: The RS1JB-13 operates from -65°C to 150°C junction temperature. Most active substitutes extend the maximum to 175°C, providing improved thermal margin. The ER1J-LTP maintains the -65°C minimum while extending to 175°C maximum. Verify application requirements before selecting parts with different temperature ranges.

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