MBR2535CTL Equivalent & Substitute Parts

Part Overview

The MBR2535CTL is a Schottky diode array manufactured by onsemi, configured as 1 pair common cathode with a maximum reverse voltage of 35 V and average rectified current of 12.5 A per diode. The device is packaged in TO-220-3 through-hole configuration and belongs to the SWITCHMODE™ series. The main part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.

Key Parameters

Parameter	Value
Diode Configuration	1 Pair Common Cathode
Technology	Schottky
Voltage - DC Reverse (Vr) (Max)	35 V
Current - Average Rectified (Io) (per Diode)	12.5 A
Voltage - Forward (Vf) (Max) @ If	470 mV @ 12.5 A
Speed	Fast Recovery ≤ 500 ns, > 200 mA (Io)
Current - Reverse Leakage @ Vr	5 mA @ 35 V
Operating Temperature - Junction	-65°C ~ 150°C
Mounting Type	Through Hole
Package / Case	TO-220-3

Substitute Part Grouping Explanation

Substitution of the MBR2535CTL is determined by the following critical parameters:

Primary Substitution Criteria:

Diode configuration: 1 pair common cathode
Technology: Schottky
Voltage rating: 35 V maximum reverse voltage
Current rating: 12.5 A or higher average rectified current per diode
Package: TO-220-3 through-hole
Speed: Fast recovery ≤ 500 ns

Direct Equivalent: MBR2535CTLG (onsemi) maintains identical electrical specifications and is the active product replacement with RoHS3 compliance.

Compatible Substitutes: Parts with equal or higher current ratings (15 A), matching 35 V voltage rating, and identical package configuration are functionally compatible. These include 25CTQ035, 30CTQ035, MBR1535CTHC0G, and MBR2535CT-E3/45.

Voltage-Elevated Alternatives: STPS30L45CT operates at 45 V reverse voltage, providing additional voltage margin while maintaining 15 A current capability and TO-220-3 packaging.

Parameter Comparison

Part Number	Manufacturer	Vr (Max)	Io (per Diode)	Vf (Max) @ If	Reverse Leakage @ Vr	Tj (Operating)	Package	Product Status	RoHS Status
MBR2535CTL	onsemi	35 V	12.5 A	470 mV @ 12.5 A	5 mA @ 35 V	-65°C ~ 150°C	TO-220-3	Obsolete	RoHS non-compliant
MBR2535CTLG	onsemi	35 V	12.5 A	470 mV @ 12.5 A	5 mA @ 35 V	-65°C ~ 150°C	TO-220-3	Active	RoHS3 Compliant
MBR2535CTL	SMC Diode Solutions	35 V	Not specified	470 mV @ 12.5 A	1 mA @ 35 V	-55°C ~ 150°C	TO-220-3	Active	RoHS3 Compliant
25CTQ035	SMC Diode Solutions	35 V	15 A	560 mV @ 15 A	1 mA @ 35 V	-55°C ~ 150°C	TO-220-3	Active	RoHS3 Compliant
30CTQ035	SMC Diode Solutions	35 V	15 A	620 mV @ 15 A	1 mA @ 35 V	-55°C ~ 175°C	TO-220-3	Active	RoHS3 Compliant
MBR1535CTHC0G	Taiwan Semiconductor Corporation	35 V	15 A	840 mV @ 15 A	500 µA @ 35 V	-55°C ~ 150°C	TO-220-3	Active	RoHS3 Compliant
MBR2535CT-E3/45	Vishay General Semiconductor - Diodes Division	35 V	15 A	820 mV @ 30 A	200 µA @ 35 V	-65°C ~ 150°C	TO-220-3	Active	RoHS3 Compliant
STPS30L45CT	STMicroelectronics	45 V	15 A	550 mV @ 15 A	400 µA @ 45 V	-55°C ~ 150°C	TO-220-3	Active	RoHS3 Compliant

Engineering Selection Recommendations

First Choice - Direct Replacement: MBR2535CTLG (onsemi) is the recommended direct equivalent. It maintains identical electrical specifications to the obsolete MBR2535CTL while offering active product status and RoHS3 compliance. This part requires no circuit redesign and provides the most straightforward migration path.

Alternative - Same Voltage Rating, Higher Current: 25CTQ035 and 30CTQ035 (SMC Diode Solutions) are suitable substitutes when higher current capacity is acceptable. Both maintain the 35 V voltage rating and TO-220-3 package. The 25CTQ035 provides 15 A capability with lower forward voltage (560 mV @ 15 A), while 30CTQ035 extends the operating temperature range to 175°C maximum junction temperature. Both are RoHS3 compliant and active products.

Alternative - Automotive Grade: MBR1535CTHC0G (Taiwan Semiconductor Corporation) is an AEC-Q101 qualified automotive-grade device with 35 V rating and 15 A current capability. This part is suitable for applications requiring automotive qualification and is RoHS3 compliant.

Alternative - Extended Voltage Rating: STPS30L45CT (STMicroelectronics) provides 45 V reverse voltage rating with 15 A current capability. This part is appropriate for applications requiring additional voltage margin beyond the 35 V specification. It is RoHS3 compliant and active.

All recommended substitutes are RoHS3 compliant and carry active product status, ensuring long-term availability and regulatory compliance.

Frequently Asked Questions (FAQ)

Q: Can MBR2535CTLG directly replace the obsolete MBR2535CTL?

A: Yes. MBR2535CTLG is the direct equivalent manufactured by onsemi with identical electrical specifications: 35 V reverse voltage, 12.5 A average rectified current per diode, 470 mV forward voltage at 12.5 A, and TO-220-3 package. The primary difference is product status (active vs. obsolete) and RoHS3 compliance. No circuit modifications are required.

Q: What is the difference between the onsemi MBR2535CTL and SMC Diode Solutions MBR2535CTL?

A: Despite identical part numbers, these are different manufacturers' products. The SMC version has lower reverse leakage (1 mA vs. 5 mA @ 35 V), a narrower operating temperature range (-55°C to 150°C vs. -65°C to 150°C), and is RoHS3 compliant. The onsemi version is obsolete while the SMC version is active.

Q: Can I use 25CTQ035 or 30CTQ035 as substitutes?

A: Yes, both are compatible substitutes. They maintain the 35 V voltage rating and TO-220-3 package but provide higher current capacity (15 A vs. 12.5 A). The 25CTQ035 has forward voltage of 560 mV @ 15 A, while 30CTQ035 reaches 620 mV @ 15 A but extends the maximum junction temperature to 175°C. Both are RoHS3 compliant and active products.

Q: Is STPS30L45CT a suitable substitute?

A: STPS30L45CT is compatible for applications where higher voltage rating is beneficial. It provides 45 V reverse voltage (vs. 35 V) with 15 A current capability and identical TO-220-3 packaging. This part is suitable when additional voltage margin is required. It is RoHS3 compliant and active.

Q: What does "1 Pair Common Cathode" configuration mean?

A: This indicates the diode array contains two diodes sharing a common cathode terminal. The TO-220-3 package provides three leads: two anodes (one per diode) and one common cathode. All substitute parts maintain this identical configuration.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All recommended substitute parts (MBR2535CTLG, 25CTQ035, 30CTQ035, MBR1535CTHC0G, MBR2535CT-E3/45, and STPS30L45CT) are RoHS3 compliant. The original MBR2535CTL is RoHS non-compliant, making compliance an important consideration for new designs.

Q: What is the significance of forward voltage differences among substitutes?

A: Forward voltage (Vf) affects power dissipation and thermal performance. Lower Vf values result in reduced heat generation. MBR2535CTLG and STPS30L45CT have lower forward voltages (470 mV and 550 mV @ 15 A respectively) compared to 30CTQ035 (620 mV @ 15 A). Selection depends on thermal budget and application requirements.

Q: Can MBR1535CTHC0G be used in non-automotive applications?

A: Yes. MBR1535CTHC0G is AEC-Q101 qualified for automotive use but is fully functional in non-automotive applications. It provides 35 V rating, 15 A current capability, and RoHS3 compliance. The automotive qualification is an additional feature, not a limitation.

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