HT14G A1G Equivalent & Substitute Parts

Part Overview

The HT14G A1G is a general-purpose rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 300 V DC reverse voltage and 1 A average rectified current in a through-hole TS-1 axial package. This component is classified as a fast recovery diode with a reverse recovery time of 50 ns, suitable for standard rectification applications requiring moderate voltage and current ratings.

The HT14G A1G has been discontinued at DiGi Electronics. Identifying equivalent substitute parts is necessary to maintain design continuity and ensure component availability for production, repair, and replacement applications.

Substiute Parts

HT14G A1G

Taiwan Semiconductor CorporationIn Stock: 889HT14G A1G Datasheet

Current PartRFQ

HT14G A0G

Taiwan Semiconductor CorporationIn Stock: 1053HT14G A0G Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the HT14G A1G are determined by electrical and mechanical parameter equivalence. The following criteria establish substitution validity:

Electrical Parameters (Must Match):

• Voltage - DC Reverse (Vr) (Max): 300 V
• Current - Average Rectified (Io): 1 A
• Voltage - Forward (Vf) (Max) @ If: 1 V @ 1 A
• Reverse Recovery Time (trr): 50 ns
• Current - Reverse Leakage @ Vr: 5 µA @ 300 V
• Capacitance @ Vr, F: 15 pF @ 4V, 1MHz
• Speed Classification: Fast Recovery ≤ 500ns, > 200mA (Io)

Mechanical Parameters (Must Match):

• Mounting Type: Through Hole
• Package / Case: T-18, Axial
• Operating Temperature - Junction: -55°C to 150°C

Compliance & Status Parameters:

• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)
• REACH Status: REACH Unaffected

Substitute parts must satisfy all electrical and mechanical parameters without deviation. Product status and inventory availability are secondary considerations that do not affect substitution eligibility.

Parameter Comparison

Engineering Selection Recommendations

The HT14G A0G is a direct electrical and mechanical equivalent to the HT14G A1G. Both components share identical electrical specifications, package configuration, and compliance certifications. The HT14G A0G differs only in the manufacturer's suffix designation (A0G versus A1G), which reflects internal manufacturing or revision tracking and does not affect functional performance or interchangeability.

Selection Basis:

The HT14G A0G is suitable for direct substitution in applications currently specified for the HT14G A1G because:

• All electrical parameters match exactly: 300 V reverse voltage, 1 A average rectified current, 50 ns reverse recovery time, and identical forward voltage characteristics
• Mechanical compatibility is confirmed: identical T-18 axial through-hole package and TS-1 supplier device package
• Thermal operating range is identical: -55°C to 150°C junction temperature
• Compliance status is equivalent: both components are ROHS3 compliant, REACH unaffected, and carry MSL 1 (unlimited) moisture sensitivity rating
• Product status: HT14G A0G is currently active with confirmed inventory availability, whereas HT14G A1G is discontinued

No design modifications, circuit adjustments, or additional testing are required when substituting HT14G A0G for HT14G A1G in existing applications.

Frequently Asked Questions (FAQ)

Q: Can HT14G A0G be used as a direct replacement for HT14G A1G?

A: Yes. The HT14G A0G is a direct substitute for HT14G A1G. All electrical parameters, mechanical specifications, and compliance certifications are identical. The suffix difference (A0G versus A1G) does not affect functional performance or circuit compatibility.

Q: What is the difference between the A1G and A0G suffixes?

A: The suffix designations reflect internal manufacturer tracking or revision identification. From an engineering and application perspective, both parts are functionally equivalent and interchangeable.

Q: Are the packages identical?

A: Yes. Both HT14G A1G and HT14G A0G use the T-18 axial through-hole package with TS-1 supplier device package designation. Pin-to-pin compatibility and PCB footprint requirements are identical.

Q: Do the electrical specifications match exactly?

A: Yes. Both parts have identical electrical specifications: 300 V maximum reverse voltage, 1 A average rectified current, 1 V maximum forward voltage at 1 A, 50 ns reverse recovery time, 5 µA reverse leakage current at 300 V, and 15 pF capacitance at 4 V and 1 MHz.

Q: Are there any compliance or certification differences?

A: No. Both HT14G A1G and HT14G A0G carry identical compliance certifications: ROHS3 compliant, REACH unaffected, and MSL 1 (unlimited) moisture sensitivity level.

Q: Why is HT14G A1G discontinued while HT14G A0G remains active?

A: Product discontinuation decisions are made by manufacturers based on production planning and market demand. The discontinuation of HT14G A1G does not indicate a technical deficiency; HT14G A0G provides equivalent functionality and is available for continued supply.

Q: Can HT14G A0G be used in high-temperature applications?

A: Yes. HT14G A0G operates across the same junction temperature range as HT14G A1G: -55°C to 150°C. Both components are suitable for applications within this thermal envelope.

Q: Is there any inventory risk with HT14G A0G?

A: HT14G A0G has confirmed inventory availability of 989 pieces in stock as new original components. HT14G A1G has 855 pieces available but is discontinued. For long-term supply assurance, HT14G A0G is the recommended selection.