1F7G-TP General Purpose Rectifier Diode Equivalent & Substitute Parts

Part Overview

The 1F7G-TP is a general purpose rectifier diode manufactured by Micro Commercial Co, rated for 1000 V DC reverse voltage and 1 A average rectified current in an R-1 axial through-hole package. This component is classified as obsolete, necessitating identification of active equivalent alternatives for continued system support and new design implementations. The 1F7G-TP features fast recovery characteristics with a reverse recovery time of 500 ns and operates across a junction temperature range of -55°C to 150°C.

Substiute Parts

1F7G-TP

Micro Commercial CoIn Stock: 10381F7G-TP Datasheet

Current PartRFQ

1F7

SMC Diode SolutionsIn Stock: 7841F7 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete 1F7G-TP is based on electrical and mechanical parameter equivalence within the general purpose rectifier diode category. The primary substitution candidate is the 1F7 manufactured by SMC Diode Solutions. Substitution eligibility is determined by the following critical parameters:

Electrical Equivalence Criteria:

• Voltage - DC Reverse (Vr) (Max): 1000 V minimum
• Current - Average Rectified (Io): 1 A minimum
• Voltage - Forward (Vf) (Max) @ If: 1.3 V or lower @ 1 A
• Current - Reverse Leakage @ Vr: 5 µA or lower @ 1000 V
• Reverse Recovery Time (trr): 500 ns or lower

Mechanical Equivalence Criteria:

• Package / Case: R-1, Axial
• Mounting Type: Through Hole

Compliance Criteria:

• RoHS3 Compliance required
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

The 1F7 meets all electrical and mechanical substitution requirements and maintains full RoHS3 compliance, enabling direct functional replacement in applications previously utilizing the 1F7G-TP.

Parameter Comparison

Engineering Selection Recommendations

The 1F7 manufactured by SMC Diode Solutions is the direct equivalent substitute for the obsolete 1F7G-TP. Both components maintain identical electrical ratings for voltage, current, and forward voltage characteristics. The 1F7 is currently in active production status, ensuring long-term availability and supply chain continuity.

Both parts satisfy ROHS3 compliance requirements and carry unlimited moisture sensitivity classification (MSL 1), eliminating special handling or storage considerations. The 1F7 provides an extended lower operating temperature limit of -65°C compared to the 1F7G-TP's -55°C minimum, offering improved performance in low-temperature applications.

The capacitance specification of the 1F7 (15 pF @ 4V, 1MHz) is marginally higher than the 1F7G-TP (12 pF @ 4V, 1MHz), remaining within acceptable tolerance for general purpose rectification applications. Both components are supplied in identical R-1 axial through-hole packaging, enabling direct mechanical and electrical substitution without circuit board redesign.

Frequently Asked Questions (FAQ)

Q: Can the 1F7 directly replace the 1F7G-TP in existing applications?

A: Yes. The 1F7 meets all electrical and mechanical specifications of the 1F7G-TP. Both components share identical voltage ratings (1000 V), current ratings (1 A), forward voltage characteristics (1.3 V @ 1 A), and R-1 axial through-hole packaging. Direct substitution is supported without circuit modification.

Q: What is the primary reason for substituting the 1F7G-TP?

A: The 1F7G-TP is classified as obsolete. The 1F7 is an active production component from SMC Diode Solutions, ensuring continued availability and supply chain reliability for new designs and legacy system support.

Q: Are there any compliance differences between the two parts?

A: Both the 1F7G-TP and 1F7 are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity classification. No additional handling or storage requirements are introduced by substitution.

Q: How do the operating temperature ranges compare?

A: The 1F7G-TP operates from -55°C to 150°C junction temperature. The 1F7 extends the lower limit to -65°C, providing a 10°C improvement for low-temperature applications. The upper limit remains identical at 150°C.

Q: Is the capacitance difference between the parts significant?

A: The 1F7 capacitance (15 pF @ 4V, 1MHz) is 3 pF higher than the 1F7G-TP (12 pF @ 4V, 1MHz). This 25% increase is within acceptable tolerance for general purpose rectification circuits and does not impact functional equivalence.

Q: What packaging options are available for the 1F7?

A: The 1F7 is supplied in Tape & Box (TB) packaging in the R-1 axial through-hole configuration. This matches the mechanical form factor of the 1F7G-TP, enabling direct board-level substitution.

Q: Are there any speed or recovery time differences?

A: Both components specify a reverse recovery time (trr) of 500 ns. The 1F7G-TP is classified as fast recovery (≤500 ns, >200 mA), while the 1F7 is classified as standard recovery (>500 ns, >200 mA). Both meet the 500 ns specification, ensuring equivalent switching performance.