Equivalent & Substitute Parts for HT12G R0G

Part Overview

The HT12G R0G from Taiwan Semiconductor Corporation is a general-purpose diode rated for 100 V and 1 A with fast recovery characteristics (50 ns reverse recovery time). It utilizes standard diode technology and is provided in a TS-1 (T-18, Axial) through-hole package. The product status is discontinued at Digi-Key, requiring users to identify equivalent alternative models for ongoing designs and maintenance. Locating substitute parts is essential to preserve form, fit, and function in applications impacted by the discontinuation.

Key Parameters

Manufacturer Part Number	Manufacturer	Category	Technology	Voltage - DC Reverse (Vr) (Max)	Current - Average Rectified (Io)	Voltage - Forward (Vf) (Max) @ If	Speed	Reverse Recovery Time (trr)	Current - Reverse Leakage @ Vr	Capacitance @ Vr, F	Mounting Type	Package / Case	Supplier Device Package	Operating Temperature - Junction	RoHS Status	Moisture Sensitivity Level (MSL)	REACH Status	ECCN	HTSUS	Product Status
HT12G R0G	Taiwan Semiconductor Corporation	Diodes, Rectifiers	Standard	100 V	1A	1 V @ 1 A	Fast Recovery =< 500ns, > 200mA (Io)	50 ns	5 µA @ 100 V	15pF @ 4V, 1MHz	Through Hole	T-18, Axial	TS-1	-55°C ~ 150°C	ROHS3 Compliant	1 (Unlimited)	REACH Unaffected	EAR99	8541.10.0080	Discontinued at Digi-Key

Substitute Part Grouping Explanation

Equivalent and substitute part selection for diodes in this category depends strictly upon matching the following key parameters: voltage rating (DC reverse), average rectified current, forward voltage at specific current rating, reverse recovery time, reverse leakage current, capacitance, mounting type, package/case, operating temperature range, compliance profiles (RoHS, REACH), and part status. Any substitute must satisfy these criteria to assure electrical and mechanical compatibility.

Parameter Comparison

Parameter	HT12G R0G	HT12G
Manufacturer Part Number	HT12G R0G	HT12G
Manufacturer	Taiwan Semiconductor Corporation	Taiwan Semiconductor Corporation
Category	Diodes, Rectifiers	Diodes, Rectifiers
Technology	Standard	Standard
Voltage - DC Reverse (Vr) (Max)	100 V	100 V
Current - Average Rectified (Io)	1A	1A
Voltage - Forward (Vf) (Max) @ If	1 V @ 1 A	1 V @ 1 A
Speed	Fast Recovery =< 500ns, > 200mA (Io)	Fast Recovery =< 500ns, > 200mA (Io)
Reverse Recovery Time (trr)	50 ns	50 ns
Current - Reverse Leakage @ Vr	5 µA @ 100 V	5 µA @ 100 V
Capacitance @ Vr, F	15pF @ 4V, 1MHz	15pF @ 4V, 1MHz
Mounting Type	Through Hole	Through Hole
Package / Case	T-18, Axial	T-18, Axial
Supplier Device Package	TS-1	TS-1
Operating Temperature - Junction	-55°C ~ 150°C	-55°C ~ 150°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected
ECCN	EAR99	EAR99
HTSUS	8541.10.0080	8541.10.0080
Product Status	Discontinued at Digi-Key	Active

Engineering Selection Recommendations

The primary basis for selecting a substitute in this context is the discontinued status of the HT12G R0G diode. The HT12G offers an identical specification profile across all provided electrical, mechanical, and compliance parameters, and remains active. Both diodes carry ROHS3 and REACH compliance, the same ECCN and HTSUS codes, and an unlimited moisture sensitivity level. Substitute selection is permitted strictly on these grounds.

Frequently Asked Questions (FAQ)

Q: What electrical parameters are critical for substitution between HT12G R0G and HT12G?
A: The voltage rating, average rectified current, forward voltage, reverse recovery time, reverse leakage current, and capacitance as defined in the input are all critical and are identical between these two diodes.

Q: Are there any differences in compliance or environmental requirements?
A: Both the HT12G R0G and HT12G are ROHS3 compliant and REACH unaffected, with MSL level 1 (unlimited). There are no differences in these compliance fields.

Q: Is there any variation in mechanical design or mounting configuration?
A: Both are provided in the T-18, axial package with TS-1 supplier device package, and utilize through-hole mounting.

Q: Why is substitution required?
A: Substitution is necessary due to the discontinued status of the HT12G R0G. HT12G remains active and is a direct equivalent by all specified parameters.

Q: What should be considered regarding operating temperature and reliability?
A: Both diodes support the same operating junction temperature range, ensuring consistency in thermal performance according to provided data.

Q: How do inventory levels affect selection?
A: The provided inventory data confirms availability of new original stock for both HT12G R0G and HT12G. Engineering substitution can proceed when the primary part is discontinued.

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