SM15T220A-M3/9AT Equivalent & Substitute Parts

Part Overview

The SM15T220A-M3/9AT is a unidirectional Transient Voltage Suppressor (TVS) diode from Vishay General Semiconductor - Diodes Division, classified as a Zener-type device. This component is designed for general-purpose transient voltage suppression applications and is currently in active product status. The device operates across a temperature range of -65°C to 150°C and is packaged in the DO-214AB (SMC) surface mount configuration with tape and reel delivery.

Identifying equivalent and substitute parts is necessary when tape and reel packaging is unavailable, when alternative inventory sources are required, or when operational temperature ranges need adjustment for specific application requirements.

Substiute Parts

SM15T220A-M3/9AT

Vishay General Semiconductor - Diodes DivisionIn Stock: 670SM15T220A-M3/9AT Datasheet

Current PartRFQ

SMCJ188A-E3/57T

Vishay General Semiconductor - Diodes DivisionIn Stock: 10273SMCJ188A-E3/57T Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SM15T220A-M3/9AT is determined by strict equivalence across the following critical parameters:

• Voltage - Reverse Standoff (Typ): 188V
• Voltage - Breakdown (Min): 209V
• Voltage - Clamping (Max) @ Ipp: 328V
• Current - Peak Pulse (10/1000µs): 4.6A
• Power - Peak Pulse: 1500W
• Package / Case: DO-214AB (SMC)
• Mounting Type: Surface Mount
• Type: Zener, Unidirectional

The substitute part SMCJ188A-E3/57T maintains identical electrical performance specifications and package configuration. The primary difference is packaging delivery format (cut tape versus tape and reel) and a narrower operating temperature range (-55°C to 150°C versus -65°C to 150°C). This temperature range difference must be evaluated against application requirements.

Parameter Comparison

Engineering Selection Recommendations

Both the SM15T220A-M3/9AT and SMCJ188A-E3/57T are active products from the same manufacturer with identical RoHS3 compliance and REACH unaffected status. Selection between these parts should be based on:

1. Packaging delivery requirements: The SM15T220A-M3/9AT is supplied in tape and reel format, while SMCJ188A-E3/57T is supplied in cut tape format.

2. Operating temperature minimum: The SM15T220A-M3/9AT supports operation down to -65°C, while SMCJ188A-E3/57T supports operation down to -55°C. Applications requiring operation below -55°C must use the SM15T220A-M3/9AT.

3. Inventory availability: SMCJ188A-E3/57T has higher inventory availability (10,200 pcs) compared to SM15T220A-M3/9AT (643 pcs).

Frequently Asked Questions (FAQ)

Q: Can SMCJ188A-E3/57T be used as a direct replacement for SM15T220A-M3/9AT?

A: SMCJ188A-E3/57T is electrically equivalent with identical voltage and current ratings. However, the operating temperature minimum differs: SMCJ188A-E3/57T operates from -55°C while SM15T220A-M3/9AT operates from -65°C. Substitution is valid only if your application does not require operation below -55°C.

Q: What is the difference between tape and reel (TR) and cut tape (CT) packaging?

A: Tape and reel packaging is used for automated assembly processes with continuous component feeding. Cut tape packaging is used for manual assembly or lower-volume applications. Both formats contain the same component in the same package; the difference is in delivery and handling format only.

Q: Are both parts RoHS compliant?

A: Yes, both SM15T220A-M3/9AT and SMCJ188A-E3/57T are ROHS3 compliant and REACH unaffected.

Q: Do these parts have identical electrical performance?

A: Yes. Both parts have identical voltage ratings (188V reverse standoff, 209V breakdown minimum, 328V clamping maximum), identical peak pulse current (4.6A), and identical peak pulse power (1500W). They are electrically interchangeable for all specifications except operating temperature range.

Q: Which part should I select for high-volume production?

A: For high-volume automated assembly, SM15T220A-M3/9AT in tape and reel format is the standard choice. For lower volumes or manual assembly, SMCJ188A-E3/57T in cut tape format may be more practical.