UG06B Equivalent & Substitute Parts

Part Overview

The UG06B is a general-purpose rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 100V DC reverse voltage and 600mA average rectified current. The device features fast recovery characteristics with a reverse recovery time of 15 nanoseconds and is housed in a T-18 axial through-hole package. The UG06B maintains active product status and is RoHS3 compliant with unlimited moisture sensitivity rating. Substitute parts are identified when equivalent electrical and mechanical parameters are required for circuit applications where the primary part is unavailable or when specific certifications or grades are mandated by design requirements.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	100	V
Current - Average Rectified (Io)	600	mA
Voltage - Forward (Vf) (Max) @ If	950 mV @ 600 mA	mV
Reverse Recovery Time (trr)	15	ns
Current - Reverse Leakage @ Vr	5	µA @ 100 V
Capacitance @ Vr, F	9	pF @ 4V, 1MHz
Package / Case	T-18, Axial	—
Mounting Type	Through Hole	—
Operating Temperature - Junction	-55 to 150	°C
Technology	Standard	—
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)	—

Substitute Part Grouping Explanation

Substitution of the UG06B is determined by strict equivalence across all critical electrical parameters: maximum reverse voltage (100V), average rectified current (600mA), forward voltage drop (950mV @ 600mA), reverse recovery time (15ns), reverse leakage current (5µA @ 100V), and junction capacitance (9pF @ 4V, 1MHz). The mechanical parameters—T-18 axial package, through-hole mounting, and TS-1 supplier device package—must remain identical. The substitute part UG06BH satisfies all these requirements and is therefore classified as a parametric equivalent. The distinction between the main part and its substitute is determined by additional qualifications and certifications rather than core electrical or mechanical performance.

Parameter Comparison

Parameter	UG06B	UG06BH	Match
Manufacturer	Taiwan Semiconductor Corporation	Taiwan Semiconductor Corporation	Yes
Category	Diodes, Rectifiers	Diodes, Rectifiers	Yes
Voltage - DC Reverse (Vr) (Max)	100 V	100 V	Yes
Current - Average Rectified (Io)	600 mA	600 mA	Yes
Voltage - Forward (Vf) (Max) @ If	950 mV @ 600 mA	950 mV @ 600 mA	Yes
Reverse Recovery Time (trr)	15 ns	15 ns	Yes
Current - Reverse Leakage @ Vr	5 µA @ 100 V	5 µA @ 100 V	Yes
Capacitance @ Vr, F	9 pF @ 4V, 1MHz	9 pF @ 4V, 1MHz	Yes
Package / Case	T-18, Axial	T-18, Axial	Yes
Mounting Type	Through Hole	Through Hole	Yes
Operating Temperature - Junction	-55°C ~ 150°C	-55°C ~ 150°C	Yes
Technology	Standard	Standard	Yes
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Yes
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Yes
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	Yes
REACH Status	REACH Unaffected	REACH Unaffected	Yes
Grade	Standard	Automotive	No
Qualification	None specified	AEC-Q101	No

Engineering Selection Recommendations

The UG06B and UG06BH are electrically and mechanically equivalent rectifier diodes. Both parts maintain identical performance across all specified electrical parameters and are housed in the same T-18 axial through-hole package. Selection between these parts is determined by application requirements and regulatory compliance mandates.

The UG06B is suitable for general-purpose rectification applications where standard-grade components are acceptable. The part is active, RoHS3 compliant, and REACH unaffected.

The UG06BH is qualified to AEC-Q101 automotive standards and carries an automotive grade designation. This part is specified for applications requiring automotive-grade reliability and traceability. The UG06BH is also active, RoHS3 compliant, and REACH unaffected.

Selection of UG06BH over UG06B is required when designs mandate automotive-grade components or AEC-Q101 qualification. In all other applications where automotive qualification is not specified, either part satisfies the electrical and mechanical requirements.

Frequently Asked Questions (FAQ)

Q: Can the UG06BH replace the UG06B in any application?

A: The UG06BH is electrically and mechanically equivalent to the UG06B. Substitution is valid from a technical standpoint. However, the UG06BH carries automotive-grade qualification and AEC-Q101 certification, which may introduce additional cost or supply chain considerations. Substitution should be evaluated against design specifications and procurement policies.

Q: Can the UG06B replace the UG06BH in automotive applications?

A: The UG06B does not carry automotive-grade designation or AEC-Q101 qualification. Substitution of the UG06B for the UG06BH in applications requiring automotive-grade components is not appropriate, regardless of electrical equivalence.

Q: Are the package and mounting specifications identical?

A: Yes. Both the UG06B and UG06BH use the T-18 axial package with through-hole mounting. The supplier device package designation (TS-1) is identical for both parts. No PCB layout or assembly modifications are required when substituting between these parts.

Q: What are the critical electrical parameters for substitution?

A: Substitution is valid when the following parameters match: maximum reverse voltage (100V), average rectified current (600mA), forward voltage drop (950mV @ 600mA), reverse recovery time (15ns), reverse leakage current (5µA @ 100V), and junction capacitance (9pF @ 4V, 1MHz). Both parts satisfy these criteria.

Q: Do both parts meet RoHS and REACH compliance?

A: Yes. Both the UG06B and UG06BH are RoHS3 compliant and REACH unaffected. Both parts carry unlimited moisture sensitivity rating (MSL 1).

Q: What is the difference between the UG06B and UG06BH?

A: The primary difference is qualification and grade. The UG06BH is qualified to AEC-Q101 automotive standards and designated as automotive-grade. The UG06B is standard-grade. All electrical and mechanical parameters are identical.

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