BAT54-7 Equivalent & Substitute Parts

Part Overview

The BAT54-7 is a Schottky rectifier diode manufactured by Diodes Incorporated, rated for 30 V DC reverse voltage and 200 mA average rectified current in a surface mount SOT-23-3 package. This component is classified as discontinued at DiGi Electronics, which necessitates identification of equivalent and substitute parts for ongoing design requirements and production continuity. Equivalent parts maintain identical electrical and mechanical specifications, while substitute parts provide functional alternatives within the same application category.

Key Parameters

Parameter	Value	Unit
Technology	Schottky	—
Voltage - DC Reverse (Vr) (Max)	30	V
Current - Average Rectified (Io)	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	—
Capacitance @ Vr, F	10 pF @ 1 V, 1 MHz	—
Mounting Type	Surface Mount	—
Package / Case	TO-236-3, SC-59, SOT-23-3	—
Operating Temperature - Junction	-65°C ~ 150°C	—
RoHS Status	RoHS non-compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the BAT54-7 is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Criteria:

Voltage - DC Reverse (Vr) (Max): 30 V
Current - Average Rectified (Io): 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
Capacitance @ Vr, F: 10 pF @ 1 V, 1 MHz

Mechanical Equivalence Criteria:

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

All substitute parts listed maintain these electrical and mechanical specifications. Variations in operating temperature range, RoHS compliance status, and product status (Active vs. Last Time Buy) are noted but do not affect functional substitutability within the specified parameter envelope.

Parameter Comparison

Part Number	Manufacturer	Vr (Max)	Io	Vf (Max) @ If	trr	Ir @ Vr	Capacitance	Package	Tj (Max)	RoHS Status	Product Status
BAT54-7	Diodes Incorporated	30 V	200 mA	800 mV @ 100 mA	5 ns	2 µA @ 25 V	10 pF @ 1 V, 1 MHz	SOT-23-3	150°C	RoHS non-compliant	Discontinued
BAT54-7-F	Diodes Incorporated	30 V	200 mA	800 mV @ 100 mA	5 ns	2 µA @ 25 V	10 pF @ 1 V, 1 MHz	SOT-23-3	150°C	ROHS3 Compliant	Active
BAT54Q-13	Diodes Incorporated	30 V	200 mA	800 mV @ 100 mA	5 ns	2 µA @ 25 V	10 pF @ 1 V, 1 MHz	SOT-23-3	150°C	ROHS3 Compliant	Active
BAT54Q-7-F	Diodes Incorporated	30 V	200 mA	800 mV @ 100 mA	5 ns	2 µA @ 25 V	10 pF @ 1 V, 1 MHz	SOT-23-3	150°C	ROHS3 Compliant	Active
BAT54E6327HTSA1	Infineon Technologies	30 V	200 mA	800 mV @ 100 mA	5 ns	2 µA @ 25 V	10 pF @ 1 V, 1 MHz	SOT-23-3	150°C	ROHS3 Compliant	Active
BAT54,215	Nexperia USA Inc.	30 V	200 mA	800 mV @ 100 mA	5 ns	2 µA @ 25 V	10 pF @ 1 V, 1 MHz	SOT-23-3	150°C	ROHS3 Compliant	Active
BAT54,235	Nexperia USA Inc.	30 V	200 mA	800 mV @ 100 mA	5 ns	2 µA @ 25 V	10 pF @ 1 V, 1 MHz	SOT-23-3	150°C	ROHS3 Compliant	Active
BAT54-E3-18	Vishay General Semiconductor - Diodes Division	30 V	200 mA	800 mV @ 100 mA	5 ns	2 µA @ 25 V	10 pF @ 1 V, 1 MHz	SOT-23-3	125°C	ROHS3 Compliant	Active
BAT54-G3-08	Vishay General Semiconductor - Diodes Division	30 V	200 mA	800 mV @ 100 mA	5 ns	2 µA @ 25 V	10 pF @ 1 V, 1 MHz	SOT-23-3	125°C	ROHS3 Compliant	Active
BAT54-HE3-18	Vishay General Semiconductor - Diodes Division	30 V	200 mA	800 mV @ 100 mA	5 ns	2 µA @ 25 V	10 pF @ 1 V, 1 MHz	SOT-23-3	125°C	ROHS3 Compliant	Last Time Buy
BAT54-TP	Micro Commercial Co	30 V	200 mA	1 V @ 100 mA	5 ns	2 µA @ 25 V	Not specified	SOT-23-3	125°C	ROHS3 Compliant	Active

Engineering Selection Recommendations

Primary Equivalent (Recommended for Direct Replacement):

BAT54-7-F from Diodes Incorporated is the direct parametric equivalent to BAT54-7. This part maintains identical electrical specifications across all critical parameters and is manufactured by the same supplier. The primary distinction is product status (Active vs. Discontinued) and RoHS compliance upgrade (ROHS3 Compliant). This part is suitable for new designs and production continuity.

Automotive-Grade Alternatives:

BAT54Q-13 and BAT54Q-7-F from Diodes Incorporated are automotive-qualified variants (AEC-Q101) with identical electrical specifications. These parts are appropriate for applications requiring automotive-grade reliability and traceability.

Multi-Source Alternatives:

BAT54,215 and BAT54,235 from Nexperia USA Inc., BAT54-E3-18, BAT54-G3-08, and BAT54-HE3-18 from Vishay General Semiconductor - Diodes Division, and BAT54E6327HTSA1 from Infineon Technologies all maintain the core electrical specifications. These parts provide supply chain diversification and are all ROHS3 compliant and in Active product status.

Consideration for Operating Temperature:

Vishay parts (BAT54-E3-18, BAT54-G3-08, BAT54-HE3-18) and Micro Commercial Co BAT54-TP specify a maximum junction temperature of 125°C, compared to 150°C for the original BAT54-7 and most alternatives. Applications operating near the upper thermal limit require verification of thermal performance.

Forward Voltage Deviation:

BAT54-TP from Micro Commercial Co specifies a maximum forward voltage of 1 V @ 100 mA, compared to 800 mV for all other parts. This 200 mV difference may affect circuit performance in applications with tight voltage budgets.

Frequently Asked Questions (FAQ)

Q: Can BAT54-7-F be used as a direct replacement for BAT54-7?

A: Yes. BAT54-7-F maintains identical electrical and mechanical specifications. The primary differences are product status (Active vs. Discontinued) and RoHS compliance status (ROHS3 Compliant vs. RoHS non-compliant). No circuit modifications are required.

Q: What is the difference between BAT54Q-13 and BAT54Q-7-F?

A: Both parts are automotive-qualified (AEC-Q101) variants from Diodes Incorporated with identical electrical specifications. The designation suffix indicates packaging quantity (Q-13 for 10K reel, Q-7-F for 3K reel). Electrical performance is equivalent.

Q: Are Nexperia BAT54,215 and BAT54,235 interchangeable?

A: Yes. Both parts are from Nexperia USA Inc. and maintain identical electrical specifications. The primary difference is packaging format (BAT54,215 in Cut Tape & Digi-Reel; BAT54,235 in Tape & Reel). Selection depends on procurement and assembly requirements.

Q: Why do some parts specify 125°C maximum junction temperature while others specify 150°C?

A: Operating temperature range is a design specification that varies by manufacturer. Parts with 125°C maximum (Vishay and Micro Commercial Co variants) are suitable for applications within this thermal envelope. Applications requiring operation at higher temperatures should use parts rated to 150°C.

Q: Is the forward voltage difference in BAT54-TP significant?

A: BAT54-TP specifies 1 V maximum forward voltage compared to 800 mV for other parts. This 200 mV difference is measurable and may affect circuit performance in applications with tight voltage budgets or high-frequency switching applications. Verify circuit compatibility before substitution.

Q: Can I use automotive-qualified parts (BAT54Q-13, BAT54Q-7-F, BAT54-HE3-18) in non-automotive applications?

A: Yes. Automotive-qualified parts meet or exceed standard commercial specifications and are suitable for any application within their electrical and thermal ratings. Automotive qualification provides additional traceability and reliability assurance.

Q: What does "Last Time Buy" status mean for BAT54-HE3-18?

A: Last Time Buy indicates that the manufacturer has announced end-of-life for this part. Existing inventory is available for purchase, but no future production is planned. For new designs or long-term production requirements, select parts with Active status.

Q: Are all substitute parts ROHS3 compliant?

A: All substitute parts listed are ROHS3 compliant except the original BAT54-7, which is RoHS non-compliant. For applications requiring RoHS compliance, any of the listed substitute parts are suitable.

Q: Does package designation (SOT-23-3 vs. TO-236-3 vs. SC-59) affect compatibility?

A: No. SOT-23-3, TO-236-3, and SC-59 are equivalent package designations for the same physical form factor. All parts listed use this identical package and are mechanically interchangeable on the PCB.

Q: Which substitute part offers the best supply availability?

A: BAT54,215 from Nexperia USA Inc. shows the highest inventory level (546,150 Pcs). BAT54-7-F from Diodes Incorporated (443,200 Pcs) and BAT54-TP from Micro Commercial Co (2,850 Pcs) offer alternative sources. Inventory levels are subject to change and should be verified with current suppliers.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message