RS1K-13 General Purpose Rectifier Diode Equivalent & Substitute Parts

Part Overview

The RS1K-13 is a general purpose rectifier diode manufactured by Diodes Incorporated, rated for 800 V DC reverse voltage and 1 A average rectified current in a surface mount SMA package. This part is discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives for ongoing production and repair applications. Substitute parts must maintain electrical compatibility across voltage, current, and thermal specifications while accommodating different packaging formats and manufacturer sources.

Key Parameters

Parameter	RS1K-13 Specification
Voltage - DC Reverse (Vr) (Max)	800 V
Current - Average Rectified (Io)	1 A
Voltage - Forward (Vf) (Max) @ If	1.3 V @ 1 A
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)
Reverse Recovery Time (trr)	500 ns
Current - Reverse Leakage @ Vr	5 µA @ 800 V
Package / Case	DO-214AC, SMA
Operating Temperature - Junction	-65°C ~ 150°C
Mounting Type	Surface Mount
RoHS Status	RoHS non-compliant

Substitute Part Grouping Explanation

Substitution of the RS1K-13 is determined by the following critical parameters:

Mandatory Electrical Compatibility:

Voltage - DC Reverse (Vr) rating must equal or exceed 800 V
Current - Average Rectified (Io) must equal or exceed 1 A
Forward voltage drop must not exceed application circuit tolerances
Reverse recovery time characteristics must be compatible with circuit switching requirements

Mechanical Compatibility:

Surface mount package format (DO-214AC/SMA or equivalent footprint)
Moisture Sensitivity Level 1 (Unlimited) for standard handling

Thermal Compatibility:

Operating junction temperature range must accommodate application environment

Substitute parts are grouped into three categories based on electrical performance and availability status:

Category 1: Direct Electrical Equivalents (800 V, 1 A, Fast Recovery) Parts maintaining identical voltage, current, and fast recovery specifications with active or available inventory status.

Category 2: Upgraded Voltage Rating (1000 V, 1 A) Parts with higher reverse voltage rating suitable for applications requiring additional voltage margin, with compatible current and recovery characteristics.

Category 3: Alternative Recovery Characteristics (800 V, 1 A, Standard Recovery) Parts with identical voltage and current ratings but standard recovery speed, suitable for non-switching applications or where recovery time is not critical.

Parameter Comparison

Part Number	Manufacturer	Vr (Max)	Io	Vf @ 1A	Recovery Speed	trr	Package	Tj Range	Product Status	RoHS
RS1K-13	Diodes Inc.	800 V	1 A	1.3 V	Fast ≤ 500ns	500 ns	DO-214AC, SMA	-65 to 150°C	Discontinued	Non-compliant
RS1K-13-F	Diodes Inc.	800 V	1 A	1.3 V	Fast ≤ 500ns	500 ns	DO-214AC, SMA	-65 to 150°C	Active	ROHS3 Compliant
RGF1K-E3/67A	Vishay	800 V	1 A	1.3 V	Fast ≤ 500ns	500 ns	DO-214BA	-65 to 175°C	Active	ROHS3 Compliant
RGF1K	onsemi	800 V	1 A	1.3 V	Fast ≤ 500ns	500 ns	DO-214AC, SMA	-65 to 175°C	Not For New Designs	ROHS3 Compliant
GF1M	onsemi	1000 V	1 A	1.2 V	Standard > 500ns	2 µs	DO-214AC, SMA	-65 to 175°C	Not For New Designs	ROHS3 Compliant
GS1K-LTP	Micro Commercial Co	800 V	1 A	1.0 V	Standard > 500ns	—	DO-214AC, SMA	-55 to 150°C	Active	ROHS3 Compliant
MRA4006T3G	onsemi	800 V	1 A	1.1 V	Standard > 500ns	—	DO-214AC, SMA	-55 to 175°C	Not For New Designs	ROHS3 Compliant
NRVA4006T3G	onsemi	800 V	1 A	1.1 V	Standard > 500ns	—	DO-214AC, SMA	-55 to 150°C	Not For New Designs	ROHS3 Compliant
RGF1M	onsemi	1000 V	1 A	1.3 V	Fast ≤ 500ns	500 ns	DO-214AC, SMA	-65 to 175°C	Not For New Designs	ROHS3 Compliant
RS1K-E3/5AT	Vishay	800 V	1 A	1.3 V	Fast ≤ 500ns	500 ns	DO-214AC, SMA	-55 to 150°C	Active	ROHS3 Compliant
RS1M	EVVO Semi	1000 V	1 A	1.3 V	Fast ≤ 500ns	500 ns	DO-214AC, SMA	-55 to 150°C	Active	ROHS3 Compliant

Engineering Selection Recommendations

Primary Recommendation: RS1K-13-F

The RS1K-13-F from Diodes Incorporated is the direct functional equivalent of the discontinued RS1K-13. This part maintains identical electrical specifications (800 V, 1 A, fast recovery 500 ns) and package format (DO-214AC, SMA). The RS1K-13-F is currently in active production status with 85,200 pieces in stock and carries ROHS3 compliance certification, addressing the RoHS non-compliance limitation of the original part. This substitution requires no circuit redesign and provides the highest compatibility assurance.

Secondary Recommendation: RS1K-E3/5AT

The RS1K-E3/5AT from Vishay General Semiconductor maintains identical electrical performance (800 V, 1 A, fast recovery 500 ns, 1.3 V forward voltage) and package format. This part is in active production status with 7,378 pieces available. ROHS3 compliance is provided. The operating temperature range is -55°C to 150°C, which is narrower than the original part but suitable for most commercial applications.

Tertiary Recommendation: RGF1K-E3/67A

The RGF1K-E3/67A from Vishay maintains identical electrical specifications (800 V, 1 A, fast recovery 500 ns) with active production status and 15,100 pieces in stock. The package format is DO-214BA rather than DO-214AC/SMA, requiring PCB footprint verification before implementation. Operating temperature range extends to -65°C to 175°C, providing superior thermal performance. ROHS3 compliance is provided.

Alternative for Voltage Margin Applications: RGF1M

The RGF1M from onsemi provides upgraded voltage rating (1000 V) while maintaining 1 A current and fast recovery characteristics (500 ns). This part is suitable for applications requiring additional voltage safety margin. Package format is DO-214AC/SMA, matching the original part. Operating temperature range is -65°C to 175°C. Product status is "Not For New Designs," indicating limited long-term availability.

Alternative for Standard Recovery Applications: GS1K-LTP

The GS1K-LTP from Micro Commercial Co maintains 800 V and 1 A ratings with standard recovery characteristics (>500 ns). This part is suitable for non-switching applications where fast recovery is not required. Forward voltage is reduced to 1.0 V, providing lower power dissipation. Active production status with 8,458 pieces in stock. ROHS3 compliance is provided.

Not Recommended for New Designs:

Parts with "Not For New Designs" status (RGF1K, GF1M, MRA4006T3G, NRVA4006T3G, RGF1M) should be used only for replacement of existing assemblies where supply continuity is critical. These parts have limited long-term availability and may be discontinued without notice.

Frequently Asked Questions (FAQ)

Q: Can RS1K-13-F be used as a direct replacement for RS1K-13?

A: Yes. The RS1K-13-F is electrically and mechanically identical to the RS1K-13, with identical voltage (800 V), current (1 A), forward voltage (1.3 V @ 1 A), and recovery time (500 ns) specifications. Both use the DO-214AC/SMA package. 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 fast recovery and standard recovery diodes?

A: Fast recovery diodes have reverse recovery time ≤ 500 ns, while standard recovery diodes exceed 500 ns. Fast recovery diodes are required for high-frequency switching applications to minimize switching losses and electromagnetic interference. Standard recovery diodes are suitable for low-frequency rectification and power supply applications where recovery speed is not critical. The RS1K-13 specifies fast recovery (500 ns), so substitutes should maintain this characteristic unless the application circuit has been verified to tolerate longer recovery times.

Q: Can a 1000 V rated diode (such as RGF1M or RS1M) be used in place of an 800 V rated diode?

A: Yes, provided all other electrical parameters are compatible. A higher voltage rating provides additional safety margin and does not degrade circuit performance. The 1000 V parts (RGF1M, RS1M, GF1M) maintain 1 A current rating and fast recovery characteristics. However, verify that the forward voltage drop (typically 1.2 to 1.3 V) does not exceed circuit tolerance, as this affects power dissipation and thermal management.

Q: What does "Not For New Designs" product status mean?

A: "Not For New Designs" indicates that the manufacturer has discontinued active development and marketing of the part, though existing inventory may remain available. These parts should be used only for replacement of existing assemblies or where supply continuity is critical for legacy products. For new circuit designs, select parts with "Active" product status to ensure long-term availability and manufacturer support.

Q: Are there package compatibility issues between DO-214AC and DO-214BA?

A: Yes. DO-214AC (SMA) and DO-214BA (GF1) are different surface mount packages with different footprints and lead configurations. Before substituting a DO-214BA part (such as RGF1K-E3/67A) for a DO-214AC part, verify that the PCB footprint accommodates the alternative package. Electrical performance is identical, but physical placement and soldering requirements differ.

Q: What is the significance of RoHS compliance for this diode?

A: RoHS (Restriction of Hazardous Substances) compliance indicates that the part does not contain lead, cadmium, mercury, or other restricted materials. ROHS3 compliance is required for products sold in the European Union and many other markets. The original RS1K-13 is RoHS non-compliant, while all recommended substitutes (RS1K-13-F, RS1K-E3/5AT, RGF1K-E3/67A, etc.) carry ROHS3 certification. For applications subject to RoHS regulations, select only ROHS3-compliant parts.

Q: Can the RS1K-13 be used in automotive applications?

A: The RS1K-13 does not carry automotive qualification (AEC-Q101). For automotive applications, the NRVA4006T3G from onsemi is qualified to AEC-Q101 standard and maintains 800 V, 1 A specifications with standard recovery characteristics. However, NRVA4006T3G has "Not For New Designs" status, limiting its suitability for new automotive programs. Consult with the vehicle manufacturer or tier-1 supplier for approved automotive-grade alternatives.

Q: What is the impact of forward voltage differences between substitute parts?

A: Forward voltage (Vf) affects power dissipation and thermal management. The RS1K-13 specifies 1.3 V @ 1 A. Substitutes range from 1.0 V (GS1K-LTP) to 1.3 V (RS1K-13-F, RGF1K-E3/67A, RGF1M, RS1M). Lower forward voltage reduces power loss and heat generation. In high-current or high-frequency applications, verify that the substitute's forward voltage does not exceed circuit design margins. For most general-purpose rectification, forward voltage differences of ±0.3 V are acceptable.

Q: Is reverse leakage current a critical parameter for substitution?

A: Reverse leakage current (Ir) affects standby power consumption and circuit performance in high-impedance applications. The RS1K-13 specifies 5 µA @ 800 V. Most recommended substitutes maintain this specification (RS1K-13-F, RGF1K-E3/67A, RGF1K, RGF1M, RS1K-E3/5AT, RS1M). Some alternatives specify 10 µA @ 800 V (GS1K-LTP, MRA4006T3G, NRVA4006T3G), which is acceptable for most applications but may impact performance in precision analog circuits or high-impedance measurement systems.

Q: What is the operating temperature range significance?

A: The RS1K-13 specifies -65°C to 150°C junction temperature range. Substitutes vary from -55°C to 150°C (RS1K-E3/5AT, GS1K-LTP, NRVA4006T3G, RS1M) to -65°C to 175°C (RGF1K-E3/67A, RGF1K, GF1M, RGF1M). For applications operating at extreme temperatures (below -55°C or above 150°C), select parts with extended range. For standard commercial applications (-40°C to 85°C ambient), all listed substitutes are suitable.

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