SS26-TP Schottky Diode Equivalent & Substitute Parts

Part Overview

The SS26-TP is a Schottky rectifier diode manufactured by Micro Commercial Co, rated for 60V DC reverse voltage and 2A average rectified current in a DO-214AC (SMA) surface mount package. This part is classified as obsolete, necessitating identification of active equivalent and substitute components for new designs and production continuity. The SS26-TP operates across a junction temperature range of -55°C to 125°C and exhibits fast recovery characteristics suitable for high-frequency switching applications.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) Maximum	60	V
Current - Average Rectified (Io)	2	A
Voltage - Forward (Vf) Maximum @ If	700 mV @ 2 A	mV @ A
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Current - Reverse Leakage @ Vr	500 µA @ 60 V	µA @ V
Technology	Schottky	—
Package / Case	DO-214AC, SMA	—
Mounting Type	Surface Mount	—
Operating Temperature - Junction	-55 to 125	°C
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the SS26-TP is determined by strict equivalence across the following critical parameters:

Primary Equivalence Criteria:

Voltage - DC Reverse (Vr) Maximum: 60V
Current - Average Rectified (Io): 2A
Technology: Schottky
Package / Case: DO-214AC, SMA
Mounting Type: Surface Mount
Speed Classification: Fast Recovery ≤ 500ns, > 200mA (Io)

Direct Equivalents maintain all primary criteria and identical electrical performance specifications. These parts are pin-compatible and functionally interchangeable without circuit modification.

Similar Substitutes maintain the primary voltage and package criteria but differ in one or more of the following: current rating (1A vs. 2A), forward voltage characteristics, reverse leakage current, or operating temperature range. These parts require circuit-level evaluation to confirm suitability.

Package Variants maintain electrical specifications but employ alternative surface mount packages (Mini SMA/SOD-123 vs. DO-214AC). These require PCB layout modification and are not pin-compatible.

Parameter Comparison

Part Number	Manufacturer	Vr (Max) V	Io (A)	Vf (Max) @ If	Reverse Leakage @ Vr	Package	Temp Range °C	Product Status	Substitution Type
SS26-TP	Micro Commercial Co	60	2	700 mV @ 2 A	500 µA @ 60 V	DO-214AC, SMA	-55 to 125	Obsolete	Reference
SS26-LTP	Micro Commercial Co	60	2	700 mV @ 2 A	500 µA @ 60 V	DO-214AC, SMA	-55 to 125	Active	Direct Equivalent
CDBA260-HF	Comchip Technology	60	2	700 mV @ 2 A	500 µA @ 60 V	DO-214AC, SMA	-50 to 150	Active	Direct Equivalent
CDBM260-G	Comchip Technology	60	2	700 mV @ 2 A	500 µA @ 60 V	SOD-123T	-55 to 150	Active	Package Variant
B260A-13-F	Diodes Incorporated	60	2	700 mV @ 2 A	500 µA @ 60 V	DO-214AC, SMA	-65 to 150	Active	Direct Equivalent
MBRA160T3G	onsemi	60	1	510 mV @ 1 A	200 µA @ 60 V	DO-214AC, SMA	-55 to 150	Active	Similar Substitute
SS26S-E3/5AT	Vishay General Semiconductor - Diodes Division	60	2	750 mV @ 2 A	200 µA @ 60 V	DO-214AC, SMA	-55 to 150	Active	Similar Substitute
SS26S-E3/61T	Vishay General Semiconductor - Diodes Division	60	2	750 mV @ 2 A	200 µA @ 60 V	DO-214AC, SMA	-55 to 150	Active	Similar Substitute
STPS160A	STMicroelectronics	60	1	670 mV @ 1 A	4 µA @ 60 V	DO-214AC, SMA	—	Active	Similar Substitute
STPS160AY	STMicroelectronics	60	1	670 mV @ 1 A	4 µA @ 60 V	DO-214AC, SMA	-40 to 150	Active	Similar Substitute
STPS1L60A	STMicroelectronics	60	1	570 mV @ 1 A	50 µA @ 60 V	DO-214AC, SMA	—	Active	Similar Substitute

Engineering Selection Recommendations

Direct Equivalents (Recommended for Drop-In Replacement):

SS26-LTP, CDBA260-HF, and B260A-13-F maintain identical electrical specifications to the SS26-TP across voltage, current, and forward voltage characteristics. All three parts are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity ratings. SS26-LTP is the preferred choice as a Micro Commercial Co product maintaining the original base product number SS26. CDBA260-HF and B260A-13-F are functionally equivalent alternatives with extended operating temperature ranges (-50°C to 150°C and -65°C to 150°C respectively), providing additional thermal margin in applications requiring wider temperature operation.

Similar Substitutes (Requires Circuit Evaluation):

MBRA160T3G, SS26S-E3/5AT, SS26S-E3/61T, STPS160A, STPS160AY, and STPS1L60A are rated for 1A average rectified current versus the SS26-TP's 2A rating. These parts are suitable only for applications where the actual circuit current demand does not exceed 1A. Forward voltage characteristics vary across this group (510 mV to 750 mV @ rated current), affecting power dissipation calculations. Reverse leakage current ranges from 4 µA to 500 µA, with lower values (STPS160A, STPS160AY at 4 µA) providing superior leakage performance. STPS160AY carries AEC-Q101 automotive qualification and is suitable for automotive-grade applications.

Package Variant (PCB Redesign Required):

CDBM260-G employs a Mini SMA/SOD-123 package while maintaining identical 60V/2A electrical specifications. This part requires PCB layout modification and is not pin-compatible with the original SS26-TP DO-214AC footprint.

Compliance and Regulatory Status:

All substitute parts listed are ROHS3 compliant, REACH unaffected, and carry MSL 1 (Unlimited) moisture sensitivity ratings, matching the original SS26-TP compliance profile. No regulatory barriers exist to substitution.

Frequently Asked Questions (FAQ)

Q: Can I use MBRA160T3G as a direct replacement for SS26-TP?

A: MBRA160T3G is not a direct replacement. While both parts share the same 60V reverse voltage rating and DO-214AC package, MBRA160T3G is rated for 1A average rectified current compared to SS26-TP's 2A rating. Use MBRA160T3G only if your circuit current requirement does not exceed 1A. For 2A applications, select SS26-LTP, CDBA260-HF, or B260A-13-F.

Q: What is the difference between SS26-LTP and SS26-TP?

A: SS26-LTP is the active production equivalent of the obsolete SS26-TP. Both parts are manufactured by Micro Commercial Co, share the same base product number SS26, and maintain identical electrical specifications: 60V reverse voltage, 2A average rectified current, 700 mV forward voltage @ 2A, and DO-214AC package. SS26-LTP is the recommended replacement for new designs and production continuity.

Q: Can I substitute CDBM260-G for SS26-TP without PCB modification?

A: No. CDBM260-G uses a Mini SMA/SOD-123 package (SOD-123T) while SS26-TP uses DO-214AC (SMA). These packages are not pin-compatible and require PCB footprint redesign. If package change is acceptable, CDBM260-G provides identical electrical performance at 60V/2A.

Q: Why do some substitute parts have lower current ratings (1A vs. 2A)?

A: Parts such as STPS160A, STPS160AY, STPS1L60A, and MBRA160T3G are designed for lower current applications. These parts are suitable only if your circuit's actual current demand does not exceed 1A. Exceeding the rated current causes excessive power dissipation and thermal stress. For 2A applications, use parts rated for 2A: SS26-LTP, CDBA260-HF, B260A-13-F, or CDBM260-G.

Q: What does "Fast Recovery ≤ 500ns, > 200mA (Io)" mean?

A: This specification indicates the diode's reverse recovery time is 500 nanoseconds or less when switching from forward to reverse bias at currents exceeding 200mA. This fast recovery characteristic is essential for high-frequency switching applications and power supply circuits. All substitute parts listed maintain this specification.

Q: Are there temperature range differences between substitute parts?

A: Yes. SS26-TP operates from -55°C to 125°C junction temperature. Direct equivalents CDBA260-HF and B260A-13-F extend the upper limit to 150°C, providing additional thermal margin. STPS160AY specifies -40°C to 150°C, suitable for automotive applications. Verify your application's temperature requirements before selection.

Q: What is the significance of reverse leakage current differences?

A: Reverse leakage current affects power dissipation and circuit performance in low-current or high-impedance applications. SS26-TP specifies 500 µA @ 60V, while STPS160A and STPS160AY specify only 4 µA @ 60V. Lower leakage reduces standby power consumption and heat generation. For battery-powered or low-power applications, parts with lower leakage (STPS160A, STPS160AY) may provide performance advantages.

Q: Is STPS160AY suitable for automotive applications?

A: Yes. STPS160AY carries AEC-Q101 automotive qualification and is rated for -40°C to 150°C operation. However, STPS160AY is rated for 1A current versus SS26-TP's 2A. Use STPS160AY only in automotive applications where circuit current does not exceed 1A.

Q: What packaging options are available for 60V/2A Schottky diodes?

A: The 60V/2A Schottky diodes in this reference are available in two packages: DO-214AC (SMA) and Mini SMA/SOD-123. DO-214AC is the standard package used by SS26-TP, SS26-LTP, CDBA260-HF, B260A-13-F, and Vishay parts. CDBM260-G uses the smaller Mini SMA/SOD-123 package. Package selection depends on PCB space constraints and thermal requirements.

Q: Can I use forward voltage differences between substitute parts?

A: Forward voltage differences affect power dissipation calculations. SS26-TP and direct equivalents specify 700 mV @ 2A. Vishay parts (SS26S-E3/5AT, SS26S-E3/61T) specify 750 mV @ 2A, a 50 mV increase. For high-current applications, this difference may increase heat generation. Calculate power dissipation (P = Vf × I) for your specific current to determine if the difference is significant.

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