BAT54CT-7 Equivalent & Substitute Parts

Part Overview

The BAT54CT-7 is a Schottky diode array featuring one pair of common cathode configuration rated for 30 V DC reverse voltage and 200 mA average rectified current per diode. Manufactured by Diodes Incorporated in SOT-523 surface mount package, this component is designed for small signal applications requiring fast switching characteristics with 5 ns reverse recovery time.

The BAT54CT-7 is currently discontinued at DiGi Electronics. Equivalent and substitute parts are available from multiple manufacturers with identical or enhanced electrical specifications and active product status, ensuring design continuity and supply chain reliability.

Substiute Parts

BAT54CT-7

Diodes IncorporatedIn Stock: 3419BAT54CT-7 Datasheet

Current PartRFQ

BAT54CT-7-F

Diodes IncorporatedIn Stock: 68483BAT54CT-7-F Datasheet

Parametric EquivalentRFQ

BAT54CT-TP

Micro Commercial CoIn Stock: 23477BAT54CT-TP Datasheet

DirectRFQ

BAT54CWT-TP

Micro Commercial CoIn Stock: 3418BAT54CWT-TP Datasheet

UpgradeRFQ

BAT54CLT1G

onsemiIn Stock: 206097BAT54CLT1G Datasheet

MFR RecommendedRFQ

BAT54CWFILM

STMicroelectronicsIn Stock: 52182BAT54CWFILM Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BAT54CT-7 is determined by the following critical parameters:

Electrical Equivalence Criteria:

• Diode Configuration: 1 Pair Common Cathode
• Technology: Schottky
• Voltage - DC Reverse (Vr) (Max): 30 V minimum
• Current - Average Rectified (Io) (per Diode): 200 mA minimum
• Reverse Recovery Time (trr): 5 ns
• Base Product Number: BAT54

Mechanical Compatibility Criteria:

• Mounting Type: Surface Mount
• Package / Case: SOT-523, SOT-323, or SOT-23-3 (all surface mount variants)

Compliance Criteria:

• RoHS Status: ROHS3 Compliant preferred for new designs
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

Substitute parts are grouped into three categories based on packaging and electrical performance:

1. Direct Parametric Equivalents - Identical electrical specifications and SOT-523 packaging
2. Package Variant Equivalents - Identical electrical specifications with alternative surface mount packages (SOT-323, SOT-23-3)
3. Enhanced Performance Equivalents - Superior electrical ratings (higher voltage or current) with compatible packages

Parameter Comparison

Engineering Selection Recommendations

BAT54CT-7-F (Diodes Incorporated)

This part provides direct parametric equivalence to the BAT54CT-7 with identical electrical specifications and SOT-523 packaging. The BAT54CT-7-F is ROHS3 compliant and maintains active product status with 68,400 units in stock. This is the primary recommended substitute for direct replacement in existing designs without PCB layout modifications.

BAT54CT-TP (Micro Commercial Co)

This part offers direct parametric equivalence with identical electrical specifications and SOT-523 packaging. The BAT54CT-TP is ROHS3 compliant and active with 23,411 units in stock. Selection of this part is appropriate when Diodes Incorporated supply is constrained.

BAT54CWT-TP (Micro Commercial Co)

This part provides electrical equivalence with package variant substitution (SOT-323 instead of SOT-523). The BAT54CWT-TP is ROHS3 compliant and active. PCB layout modification is required due to different package footprint. Operating temperature range is reduced to -55°C ~ 125°C.

BAT54CLT1G (onsemi)

This part provides electrical equivalence with package variant substitution (SOT-23-3 instead of SOT-523). The BAT54CLT1G is ROHS3 compliant and active with 206,082 units in stock. Forward voltage is reduced to 800 mV @ 100 mA. PCB layout modification is required due to different package footprint. Operating temperature range is reduced to -55°C ~ 125°C.

BAT54CWFILM (STMicroelectronics)

This part provides enhanced electrical performance with 40 V reverse voltage rating and 300 mA current rating compared to the 30 V and 200 mA specifications of the BAT54CT-7. Package variant is SOT-323. The BAT54CWFILM is ROHS3 compliant and active with 52,156 units in stock. Operating temperature range is extended to -40°C ~ 150°C. PCB layout modification is required due to different package footprint. This part is suitable for applications requiring higher voltage or current margins.

Frequently Asked Questions (FAQ)

Q: Can BAT54CT-7-F be used as a direct replacement for BAT54CT-7?

A: Yes. The BAT54CT-7-F is a direct parametric equivalent with identical electrical specifications (30 V, 200 mA, 5 ns trr) and identical SOT-523 packaging. No PCB layout modifications are required. The BAT54CT-7-F is ROHS3 compliant and maintains active product status.

Q: What is the difference between BAT54CT-7 and BAT54CWT-TP?

A: Both parts share identical electrical specifications (30 V, 200 mA, 5 ns trr). The primary difference is packaging: BAT54CT-7 uses SOT-523 while BAT54CWT-TP uses SOT-323. PCB layout modification is required for BAT54CWT-TP substitution. Operating temperature range differs: BAT54CT-7 operates from -65°C to 125°C while BAT54CWT-TP operates from -55°C to 125°C.

Q: Is BAT54CLT1G compatible with BAT54CT-7 designs?

A: BAT54CLT1G provides electrical equivalence with identical 30 V reverse voltage and 200 mA current ratings. However, it uses SOT-23-3 packaging instead of SOT-523, requiring PCB layout modification. Forward voltage is reduced to 800 mV @ 100 mA. Operating temperature range is -55°C ~ 125°C compared to -65°C ~ 125°C for the BAT54CT-7.

Q: When should BAT54CWFILM be selected over other substitutes?

A: BAT54CWFILM is selected when design requirements exceed the BAT54CT-7 specifications. This part provides 40 V reverse voltage (versus 30 V) and 300 mA current rating (versus 200 mA), offering higher safety margins. Extended operating temperature range (-40°C ~ 150°C) is available. SOT-323 packaging requires PCB layout modification.

Q: Are all substitute parts RoHS compliant?

A: All substitute parts listed (BAT54CT-7-F, BAT54CT-TP, BAT54CWT-TP, BAT54CLT1G, BAT54CWFILM) are ROHS3 compliant. The original BAT54CT-7 is RoHS non-compliant. For new designs and applications subject to RoHS requirements, substitute parts are mandatory.

Q: What is the inventory status of substitute parts?

A: BAT54CLT1G has the highest inventory at 206,082 units. BAT54CT-7-F has 68,400 units. BAT54CWFILM has 52,156 units. BAT54CT-TP has 23,411 units. BAT54CWT-TP has 3,390 units. All parts maintain active product status except the original BAT54CT-7, which is discontinued.

Q: Can package variants be used interchangeably on the same PCB?

A: No. SOT-523, SOT-323, and SOT-23-3 packages have different footprints and pin configurations. PCB layout modification is required when substituting between package types. Verify footprint compatibility with PCB design files before component selection.

Q: What are the key electrical parameters that determine substitution compatibility?

A: Substitution compatibility is determined by: (1) Diode Configuration (1 Pair Common Cathode), (2) Technology (Schottky), (3) Voltage - DC Reverse (Vr) minimum 30 V, (4) Current - Average Rectified (Io) minimum 200 mA per diode, (5) Reverse Recovery Time (trr) 5 ns, and (6) Base Product Number (BAT54). All listed substitutes meet or exceed these criteria.