SMCJ1.5KE33CA-TP Equivalent & Substitute Parts

Part Overview

The SMCJ1.5KE33CA-TP is a 1500W transient voltage suppressor (TVS) diode manufactured by Micro Commercial Co, designed for general-purpose overvoltage protection in surface-mount applications. This bidirectional Zener diode operates with a reverse standoff voltage of 28.2V and provides clamping at 45.7V with peak pulse current handling of 33.3A. The part is active in production and RoHS3 compliant. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity for this critical protection component.

Substiute Parts

SMCJ1.5KE33CA-TP

Micro Commercial CoIn Stock: 3499SMCJ1.5KE33CA-TP Datasheet

Current PartRFQ

1.5SMC33CA

ANBON SEMICONDUCTOR (INT'L) LIMITEDIn Stock: 1028781.5SMC33CA Datasheet

DirectRFQ

TPSMC33CA

Littelfuse Inc.In Stock: 3245TPSMC33CA Datasheet

DirectRFQ

SM15T33CA-E3/57T

Vishay General Semiconductor - Diodes DivisionIn Stock: 1932SM15T33CA-E3/57T Datasheet

SimilarRFQ

SM15T33CA-E3/9AT

Vishay General Semiconductor - Diodes DivisionIn Stock: 5777SM15T33CA-E3/9AT Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SMCJ1.5KE33CA-TP are qualified based on electrical parameter equivalence and mechanical compatibility. The critical parameters determining substitutability are:

• Voltage - Reverse Standoff: 28.2V (±tolerance)
• Voltage - Clamping (Max) @ Ipp: 45.7V
• Current - Peak Pulse: 33A minimum
• Power - Peak Pulse: 1500W
• Package / Case: DO-214AB, SMC
• Mounting Type: Surface Mount
• Type: Zener, Bidirectional

All identified substitutes maintain these electrical specifications and physical form factor, ensuring direct functional replacement in circuit applications. Packaging format variations (Tape & Reel vs. Cut Tape) do not affect electrical performance and represent procurement options only.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed maintain active production status and RoHS3 compliance, ensuring regulatory alignment with the original SMCJ1.5KE33CA-TP. Selection among substitutes should consider the following factors based on provided specifications:

The 1.5SMC33CA (ANBON) and TPSMC33CA (Littelfuse) are direct electrical equivalents with identical peak pulse current ratings of 33.3A and 33.3A respectively. The TPSMC33CA carries AEC-Q101 automotive qualification, suitable for applications requiring automotive-grade components.

The SM15T33CA-E3/57T and SM15T33CA-E3/9AT (Vishay) variants operate with 33A peak pulse current, representing a 0.3A reduction from the main part specification. Both Vishay parts support extended low-temperature operation to -65°C compared to the main part's -55°C minimum. These parts are available in different packaging formats (Tape & Reel and Cut Tape & Digi-Reel) to accommodate various procurement workflows.

Operating temperature range differences should be evaluated against application requirements. The main part supports operation to 175°C junction temperature, while all substitutes are rated to 150°C maximum. Applications requiring the full 175°C upper temperature limit should retain the original SMCJ1.5KE33CA-TP specification.

Frequently Asked Questions (FAQ)

Q: Can SM15T33CA-E3/57T and SM15T33CA-E3/9AT be used interchangeably with SMCJ1.5KE33CA-TP?

A: Yes, with consideration of peak pulse current specification. Both Vishay parts are rated at 33A versus the main part's 33.3A. This 0.3A difference is within typical application tolerances for general-purpose transient voltage suppression. Verify application current requirements do not exceed 33A peak pulse.

Q: What is the difference between 1.5SMC33CA and TPSMC33CA?

A: Both parts are electrically equivalent with identical voltage and current ratings. The primary difference is manufacturer: 1.5SMC33CA is manufactured by ANBON, while TPSMC33CA is manufactured by Littelfuse. TPSMC33CA carries AEC-Q101 automotive qualification. Select based on supply availability and application requirements.

Q: Are packaging format differences (Tape & Reel vs. Cut Tape) significant?

A: Packaging format affects procurement and handling only. Electrical and mechanical performance are identical. Tape & Reel packaging suits high-volume automated assembly, while Cut Tape & Digi-Reel accommodates lower-volume or mixed-component orders. Component functionality remains unchanged.

Q: Does the operating temperature range difference affect substitutability?

A: The main part SMCJ1.5KE33CA-TP supports -55°C to 175°C operation. Substitute parts support -55°C to 150°C (1.5SMC33CA, TPSMC33CA) or -65°C to 150°C (Vishay variants). If your application requires junction temperatures above 150°C, the original part is required. For applications within 150°C maximum, all substitutes are suitable.

Q: Is the 1.5SMC33CA suitable for high-volume production?

A: Yes. The 1.5SMC33CA shows inventory of 102,846 pieces, supporting high-volume procurement. It maintains identical electrical specifications to the main part and is RoHS3 compliant.

Q: Can TPSMC33CA be used in automotive applications?

A: Yes. TPSMC33CA carries AEC-Q101 qualification, making it suitable for automotive-grade applications requiring this certification standard.