GS1M-TP Equivalent & Substitute Parts Reference

Part Overview

The GS1M-TP is a general-purpose rectifier diode rated for 1000 V DC reverse voltage and 1 A average rectified current in a surface mount DO-214AC (HSMA) package. Manufactured by Micro Commercial Co, this component is classified as discontinued at DiGi Electronics, necessitating identification of equivalent alternatives for ongoing production and repair applications. Substitute parts must maintain electrical compatibility across voltage, current, and thermal specifications while accommodating available packaging options.

Key Parameters

Parameter	GS1M-TP Value	Unit
Voltage - DC Reverse (Vr) Max	1000	V
Current - Average Rectified (Io)	1	A
Voltage - Forward (Vf) Max @ If	1.1	V @ 1 A
Speed Classification	Standard Recovery >500ns	-
Current - Reverse Leakage @ Vr	10	µA @ 1000 V
Capacitance @ Vr, F	15	pF @ 4V, 1MHz
Package / Case	DO-214AC, SMA	-
Operating Temperature - Junction	-55 to 150	°C
RoHS Status	ROHS3 Compliant	-
Moisture Sensitivity Level	1 (Unlimited)	-

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following criteria applied strictly to the provided parameters:

Primary Substitution Criteria:

Voltage - DC Reverse (Vr) Max: Must equal or exceed 1000 V
Current - Average Rectified (Io): Must equal or exceed 1 A
Package / Case: Must be DO-214AC (SMA) or compatible surface mount variant
Mounting Type: Must be Surface Mount
RoHS Status: Must maintain ROHS3 Compliance or equivalent environmental standard

Secondary Compatibility Factors:

Voltage - Forward (Vf) Max: Acceptable range 1.0 V to 1.3 V @ 1 A (minor variations acceptable within circuit design margins)
Speed Classification: Standard Recovery (>500ns) or Fast Recovery (≤500ns) both acceptable
Current - Reverse Leakage: Must not exceed 10 µA @ rated voltage
Operating Temperature Range: Must support minimum -55°C to 150°C junction temperature

Package Considerations:

DO-214AC (HSMA) and DO-214AC (SMA) are mechanically compatible
DO-214BA (GF1) represents a different package footprint and is classified as similar but not direct substitute
Tape & Reel (TR) and Cut Tape (CT) packaging formats do not affect electrical compatibility

Parameter Comparison

Part Number	Manufacturer	Vr Max (V)	Io (A)	Vf Max @ 1A (V)	Speed	Package	Tj Range (°C)	Status
GS1M-TP	Micro Commercial Co	1000	1	1.1	Standard >500ns	DO-214AC (HSMA)	-55 to 150	Discontinued
GS1M-LTP	Micro Commercial Co	1000	1	1.0	Standard >500ns	DO-214AC (SMA)	-55 to 150	Active
MRA4007T3G	onsemi	1000	1	1.1	Standard >500ns	DO-214AC (SMA)	-55 to 175	Not For New Designs
CFRA107-G	Comchip Technology	1000	1	1.3	Fast ≤500ns	DO-214AC (SMA)	-55 to 150	Active
CURA107-G	Comchip Technology	1000	1	1.7	Fast ≤500ns	DO-214AC (SMA)	-55 to 150	Active
GF1K-E3/67A	Vishay	800	1	1.2	Standard >500ns	DO-214BA (GF1)	-65 to 175	Active
GF1M	onsemi	1000	1	1.2	Standard >500ns	DO-214AC (SMA)	-65 to 175	Not For New Designs
GF1M-E3/5CA	Vishay	1000	1	1.2	Standard >500ns	DO-214BA (GF1)	-65 to 175	Active
GF1M-E3/67A	Vishay	1000	1	1.2	Standard >500ns	DO-214BA (GF1)	-65 to 175	Active
GF1M/1754	Vishay	1000	1	1.2	Standard >500ns	DO-214BA (GF1)	-65 to 175	Active
RGF1M	onsemi	1000	1	1.3	Fast ≤500ns	DO-214AC (SMA)	-65 to 175	Not For New Designs

Engineering Selection Recommendations

Direct Substitutes (Identical Electrical and Package Specifications):

GS1M-LTP is the primary direct substitute for GS1M-TP. Both parts are manufactured by Micro Commercial Co, share identical electrical ratings (1000 V, 1 A, Standard Recovery), and are housed in compatible DO-214AC surface mount packages. GS1M-LTP maintains Active product status with significantly higher inventory availability (88,005 units). The forward voltage specification of GS1M-LTP (1.0 V @ 1 A) is marginally lower than GS1M-TP (1.1 V @ 1 A), representing improved performance characteristics. Both parts maintain ROHS3 compliance and MSL 1 rating.

Functionally Equivalent Substitutes (Matching Electrical Parameters, DO-214AC Package):

MRA4007T3G (onsemi) and RGF1M (onsemi) meet all electrical requirements with 1000 V reverse voltage and 1 A current rating in DO-214AC (SMA) packages. MRA4007T3G carries "Not For New Designs" status but maintains 425,100 units in inventory. RGF1M exhibits Fast Recovery characteristics (≤500ns, 500 ns trr) compared to the Standard Recovery profile of GS1M-TP, with forward voltage of 1.3 V @ 1 A. Both parts support extended operating temperature ranges (-55°C to 175°C).

CFRA107-G (Comchip Technology) provides Active product status with 1000 V, 1 A specifications and Fast Recovery performance (500 ns trr). Forward voltage is 1.3 V @ 1 A. This part is suitable for applications where faster recovery characteristics are beneficial or neutral.

Similar Substitutes (Matching Electrical Parameters, Alternative Package):

GF1M-E3/5CA, GF1M-E3/67A, and GF1M/1754 (Vishay SUPERECTIFIER® series) meet all electrical requirements with 1000 V, 1 A ratings but utilize DO-214BA (GF1) package instead of DO-214AC. These parts maintain Active product status and support extended temperature ranges (-65°C to 175°C). PCB layout modifications are required to accommodate the different package footprint. GF1M (onsemi) similarly provides 1000 V, 1 A performance in DO-214AC (SMA) package with "Not For New Designs" status.

Voltage-Reduced Alternative:

GF1K-E3/67A (Vishay) provides 800 V reverse voltage rating with 1 A current in DO-214BA package. This part is suitable only for applications where the maximum reverse voltage requirement is 800 V or lower. Use of this part in circuits designed for 1000 V operation is not recommended.

Voltage-Enhanced Alternative:

CURA107-G (Comchip Technology) maintains 1000 V, 1 A specifications with ultrafast recovery characteristics (75 ns trr) and Fast Recovery classification. Forward voltage is elevated at 1.7 V @ 1 A. This part is appropriate for high-frequency switching applications where recovery speed is a design requirement.

Frequently Asked Questions (FAQ)

Q: Can GS1M-LTP be used as a direct replacement for GS1M-TP without circuit modification?

A: Yes. GS1M-LTP is electrically and mechanically compatible with GS1M-TP. Both parts share identical voltage (1000 V), current (1 A), and package specifications (DO-214AC surface mount). The lower forward voltage of GS1M-LTP (1.0 V vs. 1.1 V) represents improved performance. No circuit redesign is required.

Q: What is the difference between DO-214AC (HSMA) and DO-214AC (SMA) packages?

A: Both designations refer to the same DO-214AC package footprint used for surface mount diodes. HSMA and SMA are supplier-specific nomenclature variants. The physical dimensions and PCB landing patterns are identical, making them mechanically interchangeable.

Q: Can parts with DO-214BA package (GF1 series) replace GS1M-TP?

A: DO-214BA and DO-214AC are different package footprints. While electrically compatible, DO-214BA parts require PCB layout modifications. If the existing PCB is designed for DO-214AC, DO-214BA substitutes necessitate board redesign. These parts are classified as similar rather than direct substitutes.

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

A: This designation indicates the manufacturer has discontinued active development and recommends against use in new product designs. However, these parts remain available for existing production runs and repair applications. MRA4007T3G, GF1M, and RGF1M carry this status but maintain substantial inventory levels.

Q: Are fast recovery diodes (CFRA107-G, CURA107-G, RGF1M) suitable replacements for the standard recovery GS1M-TP?

A: Fast recovery diodes are electrically compatible and can be used in applications where standard recovery performance is specified. The faster recovery time (≤500ns vs. >500ns) provides additional design margin in switching circuits. However, if the circuit is optimized for standard recovery characteristics, fast recovery substitutes may introduce unnecessary cost without functional benefit.

Q: How do I verify that a substitute part is compatible with my application?

A: Confirm that the substitute part meets or exceeds the following specifications from your circuit design: (1) Voltage - DC Reverse rating ≥ maximum reverse voltage in circuit, (2) Current - Average Rectified rating ≥ maximum forward current, (3) Operating temperature range encompasses circuit operating conditions, (4) Package footprint matches PCB design or allows modification. Consult the substitute part datasheet for detailed electrical characteristics.

Q: Why does CURA107-G have a higher forward voltage (1.7 V) than other alternatives?

A: CURA107-G is an ultrafast recovery diode (75 ns trr) optimized for high-frequency switching applications. The elevated forward voltage is a characteristic trade-off of ultrafast recovery technology. This part is appropriate only for circuits where the faster recovery time provides functional benefit.

Q: Can GF1K-E3/67A (800 V rating) be used in a circuit designed for 1000 V?

A: No. GF1K-E3/67A is rated for maximum 800 V reverse voltage. Using this part in a 1000 V circuit exceeds the component rating and creates risk of diode failure. This part is suitable only for applications where the maximum reverse voltage requirement is 800 V or lower.

Q: What inventory considerations should guide substitute selection?

A: GS1M-LTP offers the highest inventory availability (88,005 units) and Active product status, making it the preferred choice for ongoing production. MRA4007T3G provides substantial inventory (425,100 units) despite "Not For New Designs" status. Vishay SUPERECTIFIER® parts (GF1M-E3/5CA, GF1M-E3/67A, GF1M/1754) maintain Active status with moderate inventory levels (7,790 to 18,100 units). Comchip parts (CFRA107-G, CURA107-G) offer Active status with lower inventory (894 to 13,182 units).

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