HT17G A1G Equivalent & Substitute Parts

Part Overview

The HT17G A1G is a general-purpose rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 800 V DC reverse voltage with 1 A average rectified current. This component features fast recovery characteristics with a reverse recovery time of 75 ns and is housed in a T-18 axial through-hole package (TS-1 supplier package). The HT17G A1G is currently discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives for ongoing design support and production requirements.

Substiute Parts

HT17G A1G

Taiwan Semiconductor CorporationIn Stock: 1065HT17G A1G Datasheet

Current PartRFQ

HT17G A0G

Taiwan Semiconductor CorporationIn Stock: 1206HT17G A0G Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the HT17G A1G is determined by electrical and mechanical parameter equivalence within the general-purpose rectifier diode category. The critical parameters governing substitution are:

Electrical Parameters:

• Voltage - DC Reverse (Vr) (Max): 800 V
• Current - Average Rectified (Io): 1 A
• Voltage - Forward (Vf) (Max) @ If: 1.7 V @ 1 A
• Reverse Recovery Time (trr): 75 ns
• Current - Reverse Leakage @ Vr: 5 µA @ 800 V
• Capacitance @ Vr, F: 10 pF @ 4V, 1MHz

Mechanical Parameters:

• Mounting Type: Through Hole
• Package / Case: T-18, Axial
• Supplier Device Package: TS-1

Environmental & Compliance Parameters:

• Operating Temperature - Junction: -55°C to 150°C
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)
• REACH Status: REACH Unaffected

Substitute parts must match all specified electrical ratings, maintain identical through-hole axial packaging, and satisfy the same environmental and regulatory compliance requirements.

Parameter Comparison

Engineering Selection Recommendations

The HT17G A0G is a direct electrical and mechanical equivalent to the HT17G A1G. Both components are manufactured by Taiwan Semiconductor Corporation and share identical electrical specifications across all rated parameters, including reverse voltage, forward current, forward voltage drop, and reverse recovery characteristics. Both components are housed in the T-18 axial through-hole package (TS-1 supplier package) and maintain identical operating temperature ranges.

The primary distinction between these parts is product status: the HT17G A1G is discontinued at DiGi Electronics, while the HT17G A0G maintains active product status with confirmed inventory availability (1161 pieces in stock). Both components satisfy ROHS3 compliance requirements and REACH unaffected status, ensuring regulatory alignment for applications requiring environmental and hazardous substance restrictions.

For applications currently specified with the HT17G A1G, the HT17G A0G provides complete functional substitution without circuit redesign or performance degradation. The substitute part is suitable for direct replacement in existing designs and new production implementations.

Frequently Asked Questions (FAQ)

Q: Can the HT17G A0G be used as a direct replacement for the HT17G A1G in existing circuit designs?

A: Yes. The HT17G A0G is electrically and mechanically identical to the HT17G A1G across all specified parameters. Both components feature 800 V reverse voltage rating, 1 A average rectified current, 1.7 V forward voltage drop at 1 A, 75 ns reverse recovery time, and identical T-18 axial through-hole packaging. No circuit modifications are required.

Q: Are there any differences in the physical package dimensions or pin configuration between these parts?

A: No. Both the HT17G A1G and HT17G A0G use the T-18 axial through-hole package (TS-1 supplier package). Pin configuration, lead spacing, and mounting footprint are identical.

Q: What is the significance of the different part number suffixes (A1G versus A0G)?

A: The suffix designates different manufacturing date codes or production batches from Taiwan Semiconductor Corporation. The electrical and mechanical specifications remain identical between these variants. The A0G variant is currently in active production, while the A1G variant has been discontinued.

Q: Do both parts meet the same environmental and compliance standards?

A: Yes. Both the HT17G A1G and HT17G A0G are ROHS3 compliant, REACH unaffected, and carry MSL 1 (Unlimited) moisture sensitivity classification. Both operate across the identical temperature range of -55°C to 150°C junction temperature.

Q: Is there any performance difference in reverse recovery time or leakage current between these parts?

A: No. Both components specify identical reverse recovery time of 75 ns and reverse leakage current of 5 µA at 800 V. Fast recovery characteristics (≤ 500 ns for currents > 200 mA) are equivalent across both parts.

Q: What inventory status should be considered when selecting between these alternatives?

A: The HT17G A1G is discontinued at DiGi Electronics with 1049 pieces listed as new original in stock. The HT17G A0G maintains active product status with 1161 pieces available. For ongoing production requirements, the HT17G A0G is the recommended selection due to active manufacturer support and sustained availability.