Equivalent & Substitute Parts for S1JB-13

Part Overview

The S1JB-13 is a general-purpose rectifier diode rated for 600 V DC reverse voltage and 1 A average rectified current in a surface mount SMB (DO-214AA) package. This component is manufactured by Diodes Incorporated and is classified as discontinued at DiGi Electronics, necessitating identification of active equivalent and substitute parts for ongoing design requirements and production needs.

Key Parameters

Parameter	Value
Voltage - DC Reverse (Vr) (Max)	600 V
Current - Average Rectified (Io)	1 A
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 1 A
Reverse Recovery Time (trr)	3 µs
Current - Reverse Leakage @ Vr	5 µA @ 600 V
Package / Case	DO-214AA, SMB
Mounting Type	Surface Mount
Operating Temperature - Junction	-65°C ~ 150°C
RoHS Status	RoHS non-compliant

Substitute Part Grouping Explanation

Substitution of the S1JB-13 is determined by the following critical parameters:

Voltage Rating: All substitute parts must maintain a minimum DC reverse voltage rating of 600 V to ensure circuit protection and reliability.

Current Rating: Substitute parts are grouped by average rectified current capacity. Direct equivalents maintain 1 A rating. Parts with 2 A or 3 A ratings are listed as higher-capacity alternatives suitable for applications with increased current demands.

Package Type: The S1JB-13 uses DO-214AA (SMB) surface mount packaging. Substitutes are primarily selected within this package family, with one alternative (STTH1L06A) available in DO-214AC (SMA) package for applications where package footprint variation is acceptable.

Recovery Characteristics: The S1JB-13 exhibits standard recovery with reverse recovery time of 3 µs. Substitute parts include both standard recovery and fast recovery variants (≤500 ns), with fast recovery options providing improved switching performance in high-frequency applications.

Temperature Range: The S1JB-13 operates from -65°C to 150°C. Most substitute parts extend the maximum junction temperature to 175°C, providing enhanced thermal margin.

Compliance Status: The S1JB-13 is RoHS non-compliant. Active substitute parts are RoHS3 compliant, supporting modern regulatory requirements.

Parameter Comparison

Part Number	Manufacturer	Vr (Max)	Io	Vf (Max) @ If	trr	Package	Tj (Max)	Product Status	RoHS Status
S1JB-13	Diodes Incorporated	600 V	1 A	1.1 V @ 1 A	3 µs	DO-214AA, SMB	150°C	Discontinued	RoHS non-compliant
S1JB-13-F	Diodes Incorporated	600 V	1 A	1.1 V @ 1 A	3 µs	DO-214AA, SMB	150°C	Active	RoHS3 Compliant
ER1J-LTP	Micro Commercial Co	600 V	1 A	1.7 V @ 1 A	35 ns	DO-214AA, SMB	175°C	Active	RoHS3 Compliant
STTH1L06A	STMicroelectronics	600 V	1 A	1.3 V @ 1 A	80 ns	DO-214AC, SMA	175°C	Active	RoHS3 Compliant
STTH1L06U	STMicroelectronics	600 V	1 A	1.3 V @ 1 A	80 ns	DO-214AA, SMB	175°C	Active	RoHS3 Compliant
STTH1R06U	STMicroelectronics	600 V	1 A	1.7 V @ 1 A	45 ns	DO-214AA, SMB	175°C	Active	RoHS3 Compliant
STTH2L06U	STMicroelectronics	600 V	2 A	1.3 V @ 2 A	85 ns	DO-214AA, SMB	175°C	Active	RoHS3 Compliant
STTH2R06U	STMicroelectronics	600 V	2 A	1.7 V @ 2 A	50 ns	DO-214AA, SMB	175°C	Active	RoHS3 Compliant
STTH3L06U	STMicroelectronics	600 V	3 A	1.3 V @ 3 A	85 ns	DO-214AA, SMB	175°C	Active	RoHS3 Compliant
STTH3R06U	STMicroelectronics	600 V	3 A	1.7 V @ 3 A	35 ns	DO-214AA, SMB	175°C	Active	RoHS3 Compliant

Engineering Selection Recommendations

Direct Parametric Equivalent (1 A, 600 V, SMB Package):

S1JB-13-F is the parametric equivalent manufactured by Diodes Incorporated with identical electrical specifications to the S1JB-13. This part is active and RoHS3 compliant, addressing the regulatory compliance gap of the original part. Selection of S1JB-13-F is appropriate for direct replacement in existing designs without circuit modification.

Active Alternatives with Identical Current Rating (1 A, 600 V):

STTH1L06U and STTH1R06U (STMicroelectronics) maintain the 1 A current rating and 600 V voltage rating in DO-214AA SMB packaging. Both parts are active and RoHS3 compliant. STTH1L06U features lower forward voltage (1.3 V @ 1 A) and longer reverse recovery time (80 ns), while STTH1R06U exhibits higher forward voltage (1.7 V @ 1 A) and shorter reverse recovery time (45 ns). Selection between these variants depends on circuit requirements for forward voltage drop and switching speed.

ER1J-LTP (Micro Commercial Co) provides a 1 A, 600 V alternative in DO-214AA SMB packaging with fast recovery characteristics (35 ns reverse recovery time) and RoHS3 compliance. This part is suitable for applications requiring improved switching performance.

STTH1L06A (STMicroelectronics) offers 1 A, 600 V performance in DO-214AC SMA packaging. This alternative is applicable only when package footprint change is acceptable in the circuit design.

Higher Current Capacity Alternatives (2 A and 3 A, 600 V):

STTH2L06U, STTH2R06U, STTH3L06U, and STTH3R06U provide increased current ratings (2 A and 3 A respectively) while maintaining 600 V voltage rating and DO-214AA SMB packaging. These parts are active and RoHS3 compliant. Selection of higher-current variants is appropriate for applications where the original 1 A design margin requires increase or where circuit redesign permits higher current capacity.

All recommended substitute parts are active products with RoHS3 compliance, supporting current regulatory and supply chain requirements.

Frequently Asked Questions (FAQ)

Q: Can S1JB-13-F be used as a direct replacement for S1JB-13?

A: Yes. S1JB-13-F is a parametric equivalent with identical electrical specifications: 600 V reverse voltage, 1 A average rectified current, 1.1 V forward voltage at 1 A, and 3 µs reverse recovery time. Both parts use DO-214AA SMB packaging. The primary difference is product status (S1JB-13-F is active) and RoHS compliance (S1JB-13-F is RoHS3 compliant).

Q: What is the difference between STTH1L06U and STTH1R06U?

A: Both parts maintain 600 V reverse voltage and 1 A average rectified current in DO-214AA SMB packaging. STTH1L06U has lower forward voltage (1.3 V @ 1 A) and longer reverse recovery time (80 ns), resulting in lower conduction losses but slower switching. STTH1R06U has higher forward voltage (1.7 V @ 1 A) and shorter reverse recovery time (45 ns), resulting in higher conduction losses but faster switching. Selection depends on whether the circuit prioritizes low forward voltage drop or fast switching performance.

Q: Can STTH1L06A be used instead of STTH1L06U?

A: Both parts are manufactured by STMicroelectronics with identical electrical specifications (600 V, 1 A, 1.3 V forward voltage, 80 ns reverse recovery time). The difference is package type: STTH1L06A uses DO-214AC SMA packaging while STTH1L06U uses DO-214AA SMB packaging. Substitution is possible only if the circuit board layout and component footprint accommodate the SMA package change.

Q: Are higher-current parts (2 A and 3 A) suitable replacements for the 1 A S1JB-13?

A: Higher-current parts (STTH2L06U, STTH2R06U, STTH3L06U, STTH3R06U) maintain the 600 V voltage rating and DO-214AA SMB packaging, making them physically compatible. However, these parts are rated for 2 A or 3 A average rectified current, exceeding the original 1 A specification. Use of higher-current parts is appropriate only when circuit design permits increased current capacity or when additional design margin is required. Direct substitution without circuit analysis is not recommended.

Q: What does RoHS3 compliance mean for the substitute parts?

A: RoHS3 compliance indicates conformance to the Restriction of Hazardous Substances Directive, restricting the use of specific hazardous materials in electrical and electronic equipment. The original S1JB-13 is RoHS non-compliant. All recommended substitute parts are RoHS3 compliant, supporting modern regulatory requirements and supply chain standards for new designs and production.

Q: How do recovery characteristics affect diode selection?

A: The S1JB-13 exhibits standard recovery with 3 µs reverse recovery time. Substitute parts include both standard recovery variants (S1JB-13-F at 3 µs) and fast recovery variants (ER1J-LTP at 35 ns, STTH1L06U at 80 ns, STTH1R06U at 45 ns). Fast recovery diodes reduce switching losses and electromagnetic interference in high-frequency applications. Standard recovery diodes are suitable for lower-frequency applications where switching speed is not critical.

Q: What is the operating temperature range difference between S1JB-13 and substitute parts?

A: The S1JB-13 operates from -65°C to 150°C junction temperature. Most substitute parts extend the maximum junction temperature to 175°C, providing 25°C additional thermal margin. This extended range supports applications with higher ambient temperatures or thermal stress conditions. S1JB-13-F maintains the original -65°C to 150°C range.

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