GS1G-TP Equivalent & Substitute Parts Reference

Part Overview

The GS1G-TP is a general-purpose rectifier diode manufactured by Micro Commercial Co, rated for 400 V DC reverse voltage and 1 A average rectified current in a surface mount DO-214AC (HSMA) package. This part is discontinued at DiGi Electronics, necessitating identification of equivalent and substitute components for ongoing design support and procurement.

The GS1G-TP operates across a junction temperature range of -55°C to 150°C and complies with RoHS3 and REACH requirements. Standard recovery characteristics (>500 ns) and forward voltage of 1.1 V @ 1 A define its electrical performance envelope.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	400	V
Current - Average Rectified (Io)	1	A
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 1 A	V
Speed	Standard Recovery >500ns, > 200mA (Io)	-
Current - Reverse Leakage @ Vr	10	µA @ 400 V
Capacitance @ Vr, F	15	pF @ 4V, 1MHz
Package / Case	DO-214AC, SMA	-
Operating Temperature - Junction	-55 to 150	°C
Mounting Type	Surface Mount	-
RoHS Status	ROHS3 Compliant	-

Substitute Part Grouping Explanation

Substitution of the GS1G-TP is determined by strict equivalence in the following electrical and mechanical parameters:

Primary Equivalence Criteria:

Voltage - DC Reverse (Vr) (Max): 400 V
Current - Average Rectified (Io): 1 A
Package / Case: DO-214AC or compatible surface mount package
Mounting Type: Surface Mount

Secondary Compatibility Factors:

Voltage - Forward (Vf) (Max) @ If: ≤ 1.3 V @ 1 A or equivalent test condition
Current - Reverse Leakage @ Vr: ≤ 10 µA @ 400 V
Operating Temperature - Junction: Minimum -55°C, Maximum ≥ 150°C
RoHS3 Compliance and REACH Unaffected status

Parts are grouped into three categories:

Direct Manufacturer Equivalents: Parts from Micro Commercial Co with identical base product number (GS1G) and matching electrical specifications.

Parametric Equivalents: Parts meeting all primary and secondary criteria with minor variations in forward voltage or reverse leakage within acceptable ranges.

Similar Alternatives: Parts from other manufacturers (Rohm Semiconductor, Comchip Technology, Good-Ark Semiconductor, Diodes Incorporated, Vishay) meeting primary equivalence criteria with variations in recovery speed or temperature range.

Parameter Comparison

Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) [V]	Speed	Ir @ Vr [µA]	Package	Tj (°C)	Product Status
GS1G-TP	Micro Commercial Co	400	1	1.1 @ 1A	Standard >500ns	10 @ 400V	DO-214AC (HSMA)	-55 to 150	Discontinued
GS1G-LTP	Micro Commercial Co	400	1	1.0 @ 1A	Standard >500ns	10 @ 400V	DO-214AC (SMA)	-55 to 150	Not For New Designs
GS1GE-TP	Micro Commercial Co	400	1	1.1 @ 1A	Standard >500ns	5 @ 400V	DO-214AC (SMA)	-55 to 150	Not For New Designs
1SR156-400TE25	Rohm Semiconductor	400	1	1.3 @ 800mA	Fast ≤500ns	10 @ 400V	DO-214AC (SMA)	-55 to 150	Not For New Designs
CEFM104-G	Comchip Technology	400	1	1.25 @ 1A	Fast ≤500ns	5 @ 400V	SOD-123T	-55 to 150	Active
CFRA104-G	Comchip Technology	400	1	1.3 @ 1A	Fast ≤500ns	5 @ 400V	DO-214AC (SMA)	-55 to 150	Active
CSFA104-G	Comchip Technology	400	1	1.25 @ 1A	Fast ≤500ns	5 @ 400V	DO-214AC (SMA)	-55 to 150	Active
CURA104-G	Comchip Technology	400	1	1.3 @ 1A	Fast ≤500ns	5 @ 400V	DO-214AC (SMA)	-55 to 150	Active
ES1G	Good-Ark Semiconductor	400	1	1.3 @ 1A	Fast ≤500ns	5 @ 400V	DO-214AC (SMA)	-55 to 125	Active
ES1G-13-F	Diodes Incorporated	400	1	1.25 @ 1A	Fast ≤500ns	5 @ 400V	DO-214AC (SMA)	-55 to 150	Active
GF1G-E3/5CA	Vishay General Semiconductor	400	1	1.1 @ 1A	Standard >500ns	5 @ 400V	DO-214BA	-65 to 175	Active

Engineering Selection Recommendations

For Direct Replacement (Identical Electrical Performance):

GS1G-LTP and GS1GE-TP are direct Micro Commercial Co equivalents. Both maintain the 400 V / 1 A rating and standard recovery characteristics. GS1GE-TP offers improved reverse leakage (5 µA vs. 10 µA) and is available in higher quantities (26,646 pcs). Both parts carry RoHS3 compliance and REACH Unaffected status. GS1G-LTP is available in higher volume (14,340 pcs) with marginally lower forward voltage (1.0 V vs. 1.1 V).

For Active Production (Recommended for New Designs):

ES1G-13-F (Diodes Incorporated) and CSFA104-G (Comchip Technology) are active products meeting all primary equivalence criteria. Both maintain -55°C to 150°C operating range, 400 V / 1 A ratings, and RoHS3 compliance. ES1G-13-F offers the highest inventory availability (420,300 pcs) with fast recovery characteristics (25 ns) and forward voltage of 1.25 V @ 1 A. CSFA104-G provides similar performance with 626 pcs available and 35 ns recovery time.

For Extended Temperature Applications:

GF1G-E3/5CA (Vishay) extends the upper junction temperature to 175°C (vs. 150°C standard) while maintaining 400 V / 1 A specifications. This part uses DO-214BA package instead of DO-214AC, requiring PCB layout verification. Forward voltage is 1.1 V @ 1 A, matching the original GS1G-TP specification.

Package Compatibility Note:

CEFM104-G uses SOD-123T package (Mini SMA) instead of standard DO-214AC. This requires PCB footprint verification before substitution. All other listed parts use DO-214AC or DO-214BA packages compatible with standard SMA footprints.

Frequently Asked Questions (FAQ)

Q: Can GS1G-TP be replaced with GS1G-LTP or GS1GE-TP?

A: Yes. Both parts are Micro Commercial Co equivalents with identical 400 V / 1 A ratings and standard recovery characteristics. GS1GE-TP has lower reverse leakage (5 µA vs. 10 µA). Both are RoHS3 compliant and REACH Unaffected. Verify packaging availability: GS1G-LTP is supplied in Cut Tape & Digi-Reel; GS1GE-TP in Tape & Reel.

Q: What is the difference between standard and fast recovery diodes in this list?

A: GS1G-TP, GS1G-LTP, GS1GE-TP, and GF1G-E3/5CA have standard recovery (>500 ns). All Comchip Technology parts (CFRA104-G, CSFA104-G, CURA104-G), ES1G, and ES1G-13-F have fast recovery (≤500 ns). Fast recovery reduces switching losses in high-frequency applications but is not required for standard rectification. Both types meet the 400 V / 1 A specification.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed parts carry RoHS3 Compliant status and REACH Unaffected designation, matching the original GS1G-TP compliance profile.

Q: Can CEFM104-G be used as a direct substitute?

A: CEFM104-G meets all electrical criteria (400 V / 1 A, RoHS3, REACH Unaffected) but uses SOD-123T package instead of DO-214AC. PCB footprint compatibility must be verified before substitution. The part is currently active with 21,918 pcs in stock.

Q: Which substitute offers the best availability?

A: ES1G-13-F (Diodes Incorporated) has the highest inventory: 420,300 pcs. It is an active product with fast recovery (25 ns), forward voltage of 1.25 V @ 1 A, and full -55°C to 150°C operating range. All compliance certifications match the original specification.

Q: What is the temperature range difference between ES1G and other parts?

A: ES1G (Good-Ark Semiconductor) has a maximum junction temperature of 125°C, compared to 150°C for GS1G-TP and most other substitutes. This limits ES1G to applications not exceeding 125°C. For designs requiring full -55°C to 150°C range, use ES1G-13-F, CSFA104-G, or GS1GE-TP instead.

Q: Can GF1G-E3/5CA be used in place of GS1G-TP?

A: GF1G-E3/5CA meets all electrical requirements (400 V / 1 A, RoHS3, REACH Unaffected) and extends the upper temperature limit to 175°C. However, it uses DO-214BA package instead of DO-214AC. PCB layout and footprint compatibility must be verified. The part is active with 15,100 pcs available.

Q: What forward voltage variation should be expected among substitutes?

A: Forward voltage ranges from 1.0 V (GS1G-LTP) to 1.3 V (1SR156-400TE25, CFRA104-G, CURA104-G) at 1 A or equivalent test conditions. Most active substitutes specify 1.25 V @ 1 A. This variation is within acceptable limits for general-purpose rectification but should be verified for precision analog circuits.

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