BAT54CQ-13 Equivalent & Substitute Parts

Part Overview

The BAT54CQ-13 is a Schottky diode array manufactured by Diodes Incorporated, configured as 1 pair common cathode with a maximum reverse voltage of 30 V and average rectified current of 200 mA per diode. The device is housed in a SOT-23-3 surface mount package and is qualified to AEC-Q101 automotive standards. This part is currently active in production with 868 pieces in stock. Substitute parts are identified when equivalent electrical and mechanical parameters are required due to supply constraints, manufacturing discontinuation, or design flexibility within the same application requirements.

Substiute Parts

BAT54CQ-13

Diodes IncorporatedIn Stock: 937BAT54CQ-13 Datasheet

Current PartRFQ

BAT54CQ-7-F

Diodes IncorporatedIn Stock: 119780BAT54CQ-7-F Datasheet

Parametric EquivalentRFQ

BAT54CHE3-TP

Micro Commercial CoIn Stock: 6646BAT54CHE3-TP Datasheet

Parametric EquivalentRFQ

CBAT54C TR PBFREE

Central Semiconductor CorpIn Stock: 11747CBAT54C TR PBFREE Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BAT54CQ-13 is determined by strict equivalence across the following critical parameters:

Electrical Parameters (Must Match):

• Voltage - DC Reverse (Vr) (Max): 30 V
• Current - Average Rectified (Io) (per Diode): 200 mA
• Voltage - Forward (Vf) (Max) @ If: 800 mV @ 100 mA
• Reverse Recovery Time (trr): 5 ns
• Current - Reverse Leakage @ Vr: 2 µA @ 25 V
• Diode Configuration: 1 Pair Common Cathode
• Technology: Schottky

Mechanical Parameters (Must Match):

• Package / Case: TO-236-3, SC-59, SOT-23-3
• Mounting Type: Surface Mount

Compliance Parameters (Must Match):

• Grade: Automotive
• Qualification: AEC-Q101
• RoHS Status: ROHS3 Compliant

All identified substitute parts meet these criteria. Operating temperature range variations and moisture sensitivity level differences do not preclude substitution when the application requirements fall within the specified operating range of the substitute part.

Parameter Comparison

Engineering Selection Recommendations

BAT54CQ-7-F (Diodes Incorporated): This part is a direct parametric equivalent to the BAT54CQ-13 with identical electrical specifications, operating temperature range, and automotive qualifications. Both parts are manufactured by Diodes Incorporated and carry AEC-Q101 qualification. The BAT54CQ-7-F offers significantly higher inventory availability (119,680 pieces) and is suitable for applications requiring the full -65°C to 150°C operating range.

BAT54CHE3-TP (Micro Commercial Co): This part meets all critical electrical and mechanical parameters with AEC-Q101 qualification. The operating temperature range is -55°C to 125°C, which is narrower than the BAT54CQ-13. Selection of this part is appropriate for applications where the operating environment remains within the -55°C to 125°C specification. Inventory availability is 6,553 pieces.

CBAT54C TR PBFREE (Central Semiconductor Corp): This part matches all electrical specifications and package requirements with identical operating temperature range (-65°C to 150°C). Grade and qualification information is not specified in the provided data. This part is suitable for applications where manufacturer diversity is required, with 11,649 pieces in inventory.

Frequently Asked Questions (FAQ)

Q: Can BAT54CQ-7-F be used as a direct replacement for BAT54CQ-13?

A: Yes. The BAT54CQ-7-F is a parametric equivalent with identical electrical characteristics, reverse voltage rating, forward voltage drop, reverse recovery time, reverse leakage current, and operating temperature range. Both parts are AEC-Q101 qualified and housed in the same SOT-23-3 package. No circuit modifications are required.

Q: What is the difference between BAT54CHE3-TP and BAT54CQ-13?

A: The BAT54CHE3-TP has an operating temperature range of -55°C to 125°C, compared to -65°C to 150°C for the BAT54CQ-13. All other electrical parameters are identical. If the application operates within -55°C to 125°C, the BAT54CHE3-TP is functionally equivalent. Applications requiring operation below -55°C or above 125°C must use BAT54CQ-13 or equivalent parts with the extended temperature range.

Q: Are all substitute parts automotive qualified?

A: BAT54CQ-7-F and BAT54CHE3-TP are both AEC-Q101 qualified automotive parts. CBAT54C TR PBFREE does not have grade or qualification information specified in the provided data. Confirm automotive qualification requirements with the supplier before selection.

Q: Can these parts be used interchangeably in PCB assembly?

A: Yes. All substitute parts use the identical SOT-23-3 surface mount package with the same pinout and footprint. No PCB layout modifications are required for substitution.

Q: What is the significance of the "TR" designation in part numbers?

A: The "TR" designation indicates Tape & Reel packaging, which is the standard format for automated PCB assembly processes. All listed parts are supplied in Tape & Reel format.

Q: Does moisture sensitivity affect part selection?

A: BAT54CQ-7-F, BAT54CHE3-TP, and CBAT54C TR PBFREE all have Moisture Sensitivity Level (MSL) 1, indicating unlimited shelf life without special moisture control measures. This does not affect substitution decisions for standard manufacturing environments.