GS1J-TP Equivalent & Substitute Parts

Part Overview

The GS1J-TP is a general-purpose rectifier diode manufactured by Micro Commercial Co, rated for 600 V DC reverse voltage and 1 A average rectified current in a surface mount DO-214AC (SMA) package. This part is discontinued at DiGi Electronics, necessitating identification of equivalent and substitute components for ongoing design requirements and production needs. Equivalent parts maintain identical electrical and mechanical specifications, while substitute parts provide functional alternatives with variations in recovery speed, forward voltage, or package configuration.

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
Speed	Standard Recovery >500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr	10 µA @ 600 V
Mounting Type	Surface Mount
Package / Case	DO-214AC, SMA
Operating Temperature - Junction	-55°C ~ 150°C
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the GS1J-TP is determined by the following critical parameters: voltage rating (600 V minimum), current rating (1 A minimum), mounting type (surface mount), and package compatibility (DO-214AC/SMA or mechanically equivalent). Parts are grouped into three categories based on substitution compatibility:

Category 1: Direct Equivalent (Identical Specifications) Parts that match all electrical parameters and package type of the GS1J-TP, differing only in packaging format (tape & reel versus bulk) or minor forward voltage variance within acceptable limits.

Category 2: Functional Substitute - Same Package (DO-214AC/SMA) Parts that maintain 600 V / 1 A ratings and DO-214AC/SMA package but feature fast recovery characteristics (≤500 ns) or different forward voltage specifications. These parts are pin-compatible and footprint-compatible with the original design.

Category 3: Functional Substitute - Alternative Package (DO-214BA or SOD-123) Parts that meet voltage and current requirements but use different surface mount packages. These require PCB layout modification but maintain electrical compatibility within the circuit function.

Parameter Comparison

Part Number	Manufacturer	Vr (Max)	Io	Vf (Max) @ If	Speed	Package	Temp Range	Status
GS1J-TP	Micro Commercial Co	600 V	1 A	1.1 V @ 1 A	Standard >500ns	DO-214AC	-55°C ~ 150°C	Discontinued
GS1J-LTP	Micro Commercial Co	600 V	1 A	1.0 V @ 1 A	Standard >500ns	DO-214AC	-55°C ~ 150°C	Active
CFRA105-G	Comchip Technology	600 V	1 A	1.3 V @ 1 A	Fast ≤500ns	DO-214AC	-55°C ~ 150°C	Active
CSFA105-G	Comchip Technology	600 V	1 A	1.5 V @ 1 A	Fast ≤500ns	DO-214AC	-55°C ~ 150°C	Active
CSFM105-G	Comchip Technology	600 V	1 A	1.7 V @ 1 A	Fast ≤500ns	SOD-123T	-55°C ~ 150°C	Active
ES1J	HY Electronic (Cayman) Limited	600 V	1 A	1.7 V @ 1 A	Fast ≤500ns	DO-214AC	-55°C ~ 150°C	Active
GF1J-E3/67A	Vishay General Semiconductor	600 V	1 A	1.1 V @ 1 A	Standard >500ns	DO-214BA	-65°C ~ 175°C	Active
MRA4005T3G	onsemi	600 V	1 A	1.1 V @ 1 A	Standard >500ns	DO-214AC	-55°C ~ 175°C	Not For New Designs
RGF1J-E3/5CA	Vishay General Semiconductor	600 V	1 A	1.3 V @ 1 A	Fast ≤500ns	DO-214BA	-65°C ~ 175°C	Active
RGF1J-E3/67A	Vishay General Semiconductor	600 V	1 A	1.3 V @ 1 A	Fast ≤500ns	DO-214BA	-65°C ~ 175°C	Active
RS1J	Taiwan Semiconductor Corporation	600 V	1 A	1.3 V @ 1 A	Fast ≤500ns	DO-214AC	-55°C ~ 150°C	Active

Engineering Selection Recommendations

Primary Recommendation: GS1J-LTP The GS1J-LTP from Micro Commercial Co is the direct equivalent replacement for the discontinued GS1J-TP. Both parts share identical voltage and current ratings, the same DO-214AC package, and matching temperature range. The GS1J-LTP is currently active in production with 1318 units in stock. Forward voltage is marginally lower (1.0 V versus 1.1 V), which provides improved efficiency characteristics. This part requires no design modification and maintains full compatibility with existing PCB layouts.

Secondary Recommendation: MRA4005T3G The MRA4005T3G from onsemi provides equivalent electrical performance with standard recovery characteristics matching the GS1J-TP. This part maintains the DO-214AC package and 600 V / 1 A ratings. However, onsemi has designated this part as "Not For New Designs," limiting its suitability for long-term production applications. Extensive inventory availability (820,400 units) supports short-term requirements.

Alternative for Fast Recovery Applications: RS1J The RS1J from Taiwan Semiconductor Corporation offers fast recovery characteristics (≤500 ns) while maintaining the DO-214AC package and identical voltage/current ratings. Forward voltage is 1.3 V at 1 A. This part is suitable for applications requiring reduced reverse recovery time and is currently active with 95,600 units in stock.

Alternative for Extended Temperature Range: GF1J-E3/67A or RGF1J-E3/67A Vishay General Semiconductor parts GF1J-E3/67A and RGF1J-E3/67A extend the operating temperature range to -65°C ~ 175°C, compared to the GS1J-TP range of -55°C ~ 150°C. These parts use the DO-214BA package, requiring PCB layout modification. Both are ROHS3 compliant and currently active.

Compact Package Alternative: CSFM105-G The CSFM105-G from Comchip Technology provides the same 600 V / 1 A ratings in a smaller SOD-123T package. This option is suitable for space-constrained designs but requires PCB redesign. Forward voltage is 1.7 V at 1 A with fast recovery characteristics.

All recommended substitutes maintain ROHS3 compliance and unlimited moisture sensitivity level (MSL 1), ensuring compatibility with standard manufacturing processes.

Frequently Asked Questions (FAQ)

Q: Can GS1J-LTP directly replace GS1J-TP without PCB modification? A: Yes. The GS1J-LTP is a direct equivalent with identical package (DO-214AC), voltage rating (600 V), current rating (1 A), and temperature range (-55°C ~ 150°C). No PCB layout changes are required. The forward voltage is slightly lower (1.0 V versus 1.1 V), which is beneficial for circuit performance.

Q: What is the difference between standard recovery and fast recovery diodes? A: Standard recovery diodes have reverse recovery time greater than 500 ns, while fast recovery diodes have reverse recovery time of 250 ns or less. Fast recovery diodes reduce switching losses in high-frequency applications but may have higher forward voltage. Selection depends on circuit operating frequency and efficiency requirements.

Q: Can I use a DO-214BA package diode as a substitute for DO-214AC? A: DO-214BA and DO-214AC packages have different physical dimensions and PCB footprints. While electrically equivalent parts exist in both packages, PCB layout modification is required to accommodate the different package geometry. Direct pin-for-pin substitution is not possible without redesign.

Q: Are all listed substitutes ROHS3 compliant? A: Yes. All substitute parts listed maintain ROHS3 compliance, ensuring compatibility with environmental regulations and standard manufacturing processes.

Q: What is the significance of the temperature range difference between GS1J-TP (-55°C ~ 150°C) and Vishay parts (-65°C ~ 175°C)? A: The extended temperature range of Vishay parts provides operation at lower minimum temperatures (-65°C versus -55°C) and higher maximum temperatures (175°C versus 150°C). Selection depends on the specific application's thermal environment. For standard industrial applications within -55°C ~ 150°C, either range is acceptable.

Q: How does forward voltage affect circuit design? A: Forward voltage (Vf) determines the voltage drop across the diode during conduction. Higher Vf results in greater power dissipation and reduced efficiency. The GS1J-TP specifies 1.1 V at 1 A, while substitutes range from 1.0 V to 1.7 V. Circuit designs with tight voltage budgets should verify that substitute parts with higher Vf remain within acceptable operating parameters.

Q: Can I substitute a 1 A diode with a higher current-rated part? A: Yes. A diode rated for higher current (e.g., 2 A or 3 A) can replace a 1 A part in the same package, provided voltage ratings and other electrical characteristics remain compatible. However, this may result in unnecessary cost and size considerations. Verify that the higher-rated part fits within the same PCB footprint.

Q: What does "Not For New Designs" status mean for MRA4005T3G? A: This designation indicates that onsemi has discontinued active development and marketing of this part for new applications. While existing inventory is available and the part remains functional, manufacturers are encouraged to transition to actively supported alternatives. For new product development, GS1J-LTP or RS1J are preferred choices.

Q: Are there any compliance or certification differences between substitutes? A: All listed parts are ROHS3 compliant with unlimited moisture sensitivity level (MSL 1). The ES1J part includes AEC-Q101 automotive qualification, making it suitable for automotive applications. For non-automotive applications, this certification is not required but does not prevent use in general-purpose circuits.

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