STTH3BCF060U Equivalent & Substitute Parts

Part Overview

The STTH3BCF060U is a general-purpose rectifier diode manufactured by STMicroelectronics, rated for 600 V DC reverse voltage and 3 A average rectified current in a surface mount SMB (DO-214AA) package. This component is classified as a fast recovery diode with a reverse recovery time of 35 nanoseconds, suitable for power supply and switching applications requiring efficient rectification at moderate current levels.

The part is currently in active production status with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Alternative equivalent and substitute parts are necessary to address supply chain flexibility, inventory availability, and design optimization across multiple manufacturers while maintaining electrical and mechanical compatibility.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) Maximum	600	V
Current - Average Rectified (Io)	3	A
Voltage - Forward (Vf) Maximum @ If	1.7 V @ 3 A	V
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Reverse Recovery Time (trr)	35	ns
Current - Reverse Leakage @ Vr	3	µA @ 600 V
Mounting Type	Surface Mount	—
Package / Case	DO-214AA, SMB	—
Operating Temperature - Junction Maximum	175	°C
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the STTH3BCF060U is determined by strict adherence to the following electrical and mechanical parameters:

Primary Substitution Criteria (Parametric Equivalents):

Voltage - DC Reverse (Vr) Maximum: 600 V (exact match required)
Current - Average Rectified (Io): 3 A (exact match required)
Voltage - Forward (Vf) Maximum @ If: 1.7 V @ 3 A (exact match required)
Speed Classification: Fast Recovery ≤ 500ns, > 200mA (Io) (exact match required)
Reverse Recovery Time (trr): 35 ns (exact match required)
Current - Reverse Leakage @ Vr: 3 µA @ 600 V (exact match required)
Package / Case: DO-214AA, SMB (exact match required)
Mounting Type: Surface Mount (exact match required)

Secondary Substitution Criteria (Similar Parts): Parts that share the same voltage rating (600 V), package type (DO-214AA, SMB), and mounting method (Surface Mount) but differ in current rating, forward voltage, reverse recovery time, or reverse leakage current are classified as similar substitutes. These parts are suitable for applications where the lower current rating is acceptable or where improved forward voltage characteristics are beneficial.

The STTH3R06U from STMicroelectronics is a parametric equivalent with identical electrical specifications and is the primary substitute option.

Parameter Comparison

Part Number	Manufacturer	Vr (Max) V	Io (A)	Vf (Max) @ If	trr (ns)	Ir @ Vr (µA)	Package	Inventory (Pcs)
STTH3BCF060U	STMicroelectronics	600	3	1.7 V @ 3 A	35	3 @ 600 V	DO-214AA, SMB	1,680
STTH3R06U	STMicroelectronics	600	3	1.7 V @ 3 A	35	3 @ 600 V	DO-214AA, SMB	10,100
ER3JB-TP	Micro Commercial Co	600	3	1.7 V @ 3 A	35	5 @ 600 V	DO-214AA, SMB	13,300
ES3JB	MDD	600	3	1.68 V @ 3 A	35	5 @ 600 V	DO-214AA, SMB	62,195
MURS360BT3G	onsemi	600	3	1.25 V @ 3 A	75	3 @ 600 V	DO-214AA, SMB	35,100
ER2J-LTP	Micro Commercial Co	600	2	1.7 V @ 2 A	35	5 @ 600 V	DO-214AA, SMB	28,296
MURS260T3G	onsemi	600	2	1.45 V @ 2 A	75	5 @ 600 V	DO-214AA, SMB	60,400
MURS160T3G	onsemi	600	1	1.25 V @ 1 A	75	5 @ 600 V	DO-214AA, SMB	505,300
MURS160-13-F	Diodes Incorporated	600	1	1.25 V @ 1 A	50	5 @ 600 V	DO-214AA, SMB	99,796
MURS160	Good-Ark Semiconductor	600	2	1.25 V @ 1 A	75	5 @ 600 V	DO-214AA, SMB	95,300
RS1JB-13-F	Diodes Incorporated	600	1	1.3 V @ 1 A	250	5 @ 600 V	DO-214AA, SMB	15,400

Engineering Selection Recommendations

Parametric Equivalent (Direct Replacement):

The STTH3R06U is the recommended primary substitute for the STTH3BCF060U. Both parts are manufactured by STMicroelectronics and share identical electrical specifications across all critical parameters: 600 V reverse voltage, 3 A average rectified current, 1.7 V forward voltage at 3 A, 35 ns reverse recovery time, and 3 µA reverse leakage current at 600 V. Both are ROHS3 compliant with MSL 1 rating. The STTH3R06U offers significantly higher inventory availability (10,100 units versus 1,680 units), making it the preferred choice for supply chain continuity.

Similar Substitutes (Current Rating Dependent):

The ER3JB-TP and ES3JB are suitable substitutes when the application can tolerate slightly higher reverse leakage current (5 µA versus 3 µA). Both maintain the 600 V voltage rating, 3 A current rating, and 35 ns reverse recovery time. The ES3JB offers the highest inventory availability (62,195 units) among 3 A rated alternatives and is ROHS3 compliant.

The MURS360BT3G from onsemi is a 3 A rated alternative with improved forward voltage characteristics (1.25 V @ 3 A versus 1.7 V @ 3 A), resulting in lower power dissipation. However, it exhibits a longer reverse recovery time (75 ns versus 35 ns), which may impact switching performance in high-frequency applications. This part is ROHS3 compliant with MSL 1 rating.

Lower Current Alternatives:

The ER2J-LTP, MURS260T3G, MURS160T3G, MURS160-13-F, MURS160, and RS1JB-13-F are suitable only for applications where the circuit design permits operation at reduced current ratings (2 A or 1 A). These parts maintain the 600 V voltage rating and DO-214AA package but are not direct replacements for 3 A applications.

All listed substitute parts are active production items with ROHS3 compliance and REACH unaffected status, ensuring regulatory compliance and long-term availability.

Frequently Asked Questions (FAQ)

Q: Can the STTH3R06U be used as a direct replacement for the STTH3BCF060U?

A: Yes. The STTH3R06U is a parametric equivalent with identical electrical specifications. Both parts share the same 600 V reverse voltage rating, 3 A average rectified current, 1.7 V forward voltage at 3 A, 35 ns reverse recovery time, and 3 µA reverse leakage current. Both are packaged in DO-214AA (SMB) and are ROHS3 compliant. No circuit modifications are required.

Q: What is the difference between the STTH3BCF060U and the ES3JB?

A: Both parts are rated for 600 V reverse voltage and 3 A average rectified current in the DO-214AA (SMB) package with 35 ns reverse recovery time. The primary differences are: (1) ES3JB has slightly lower forward voltage (1.68 V @ 3 A versus 1.7 V @ 3 A), (2) ES3JB has higher reverse leakage current (5 µA @ 600 V versus 3 µA @ 600 V), and (3) ES3JB is manufactured by MDD rather than STMicroelectronics. The ES3JB is suitable for applications where the marginally higher leakage current is acceptable.

Q: Can I use the MURS360BT3G instead of the STTH3BCF060U?

A: The MURS360BT3G is a 3 A rated alternative with the same 600 V voltage rating and DO-214AA package. However, it has a longer reverse recovery time (75 ns versus 35 ns) and lower forward voltage (1.25 V @ 3 A versus 1.7 V @ 3 A). The longer recovery time may degrade switching performance in high-frequency rectification circuits. The lower forward voltage reduces power dissipation, which may be beneficial in some applications. Verify that the longer reverse recovery time is acceptable for your specific circuit design.

Q: Why would I choose a lower current rated part like the MURS160T3G?

A: Lower current rated parts should only be selected if the application circuit design operates at reduced current levels. The MURS160T3G is rated for 1 A average rectified current and is not suitable for applications requiring 3 A operation. Selecting an undersized component will result in excessive power dissipation and potential thermal failure.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All parts listed in this reference document are ROHS3 compliant and REACH unaffected, ensuring compliance with environmental and regulatory requirements for electronic components.

Q: What is the significance of reverse recovery time (trr) in diode selection?

A: Reverse recovery time is the interval required for a diode to transition from forward conduction to reverse blocking when the applied voltage reverses. Shorter reverse recovery times (35 ns for STTH3BCF060U) result in faster switching transitions and reduced switching losses in power supply and inverter circuits. Longer reverse recovery times (75 ns for MURS360BT3G) may introduce additional switching losses and limit maximum operating frequency. Select parts with matching or shorter reverse recovery times to maintain circuit performance.

Q: Can I substitute a 2 A rated diode in a 3 A application?

A: No. Using a 2 A rated diode in a 3 A application will cause the component to operate beyond its rated current capacity, resulting in excessive power dissipation, thermal stress, and potential failure. Always select a diode with a current rating equal to or greater than the application requirement.

Q: What does MSL 1 (Unlimited) mean for moisture sensitivity?

A: MSL 1 indicates the lowest moisture sensitivity level, meaning the component can be stored indefinitely without special moisture control measures. No baking or desiccant storage is required prior to soldering. This simplifies inventory management and reduces component handling costs.

Q: Are there any differences in operating temperature ranges between substitute parts?

A: Yes. The STTH3BCF060U and STTH3R06U are rated to 175°C maximum junction temperature. The ER3JB-TP is rated to 150°C, and the ES3JB is rated to 150°C. The MURS360BT3G is rated to 175°C. For applications operating near maximum junction temperature limits, verify that the selected substitute part's temperature rating is adequate for your thermal design.

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