BAT54W-7 Equivalent & Substitute Parts

Part Overview

The BAT54W-7 is a Schottky diode manufactured by Diodes Incorporated, rated for 30 V DC reverse voltage and 200 mA average rectified current in a surface mount SOT-323 package. This component is classified as discontinued at DiGi Electronics, which necessitates identification of equivalent and substitute parts for ongoing design requirements and production needs. Equivalent parts maintain identical electrical and mechanical specifications, while substitute parts provide functional alternatives with compatible parameters within the allowed tolerance ranges for this product 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	1	V @ 100 mA
Reverse Recovery Time (trr)	5	ns
Current - Reverse Leakage @ Vr	2	µA @ 25 V
Capacitance @ Vr, F	10	pF @ 1V, 1MHz
Package / Case	SC-70, SOT-323	—
Operating Temperature - Junction	-65 to 125	°C
Mounting Type	Surface Mount	—
RoHS Status	RoHS non-compliant	—

Substitute Part Grouping Explanation

Substitution of the BAT54W-7 is determined by the following critical parameters:

Electrical Compatibility Requirements:

Voltage - DC Reverse (Vr) (Max): 30 V minimum
Current - Average Rectified (Io): 200 mA minimum
Voltage - Forward (Vf) (Max) @ If: 1 V maximum @ 100 mA
Reverse Recovery Time (trr): 5 ns maximum
Current - Reverse Leakage @ Vr: 2 µA maximum @ 25 V
Capacitance @ Vr, F: 10 pF maximum @ 1V, 1MHz

Mechanical Compatibility Requirements:

Mounting Type: Surface Mount
Package / Case: SC-70, SOT-323 (primary) or TO-236-3, SC-59, SOT-23-3 (alternative package families)
Supplier Device Package: SOT-323 or equivalent footprint

Environmental & Compliance Requirements:

Operating Temperature - Junction: -65°C minimum to 125°C minimum
Moisture Sensitivity Level (MSL): 1 (Unlimited)
REACH Status: REACH Unaffected

Substitute parts are grouped into two categories: (1) direct SOT-323 package equivalents with identical electrical specifications, and (2) alternative package variants (TO-236AB, SOT-23) that maintain electrical compatibility but require PCB layout modification.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vr (Max) [V]	Io [mA]	Vf (Max) @ If [V @ mA]	trr [ns]	Ir @ Vr [µA @ V]	Package	Tj (Max) [°C]	Product Status	RoHS
BAT54W-7	Diodes Incorporated	30	200	1 @ 100	5	2 @ 25	SOT-323	125	Discontinued	Non-compliant
BAT54W-7-F	Diodes Incorporated	30	200	1 @ 100	5	2 @ 25	SOT-323	125	Active	ROHS3 Compliant
1PS70SB10,115	Nexperia USA Inc.	30	200	0.8 @ 100	—	2 @ 25	SOT-323	150	Active	ROHS3 Compliant
BAT54,215	Nexperia USA Inc.	30	200	0.8 @ 100	5	2 @ 25	TO-236AB	150	Active	ROHS3 Compliant
BAT54,235	Nexperia USA Inc.	30	200	0.8 @ 100	5	2 @ 25	TO-236AB	150	Active	ROHS3 Compliant
BAT54-TP	Micro Commercial Co	30	200	1 @ 100	5	2 @ 25	SOT-23	125	Active	ROHS3 Compliant
BAT54A-TP	Micro Commercial Co	30	200	1 @ 100	5	2 @ 25	SOT-23	125	Active	ROHS3 Compliant
BAT54E6327HTSA1	Infineon Technologies	30	200	0.8 @ 100	5	2 @ 25	SOT-23	150	Active	ROHS3 Compliant
BAT54W,115	NXP Semiconductors	30	200	0.8 @ 100	5	2 @ 25	SOT-323	150	Active	ROHS3 Compliant
BAT54W_R1_00001	Panjit International Inc.	30	200	0.6 @ 100	—	2 @ 25	SOT-323	125	Active	ROHS3 Compliant
BAT54WT-TP	Micro Commercial Co	30	200	1 @ 100	5	2 @ 25	SOT-323	125	Active	ROHS3 Compliant

Engineering Selection Recommendations

Primary Equivalent (Direct Replacement):

BAT54W-7-F (Diodes Incorporated) is the direct equivalent to BAT54W-7, maintaining identical electrical specifications and SOT-323 packaging. This part is currently active in production and RoHS3 compliant, addressing the discontinued status of the original part.

SOT-323 Package Alternatives (No PCB Layout Modification Required):

BAT54W,115 (NXP Semiconductors) and BAT54WT-TP (Micro Commercial Co) provide SOT-323 package compatibility with identical mechanical footprints. Both are active products with RoHS3 compliance. BAT54W,115 includes automotive-grade qualification (AEC-Q101) and extended junction temperature rating (150°C maximum), suitable for applications requiring enhanced thermal performance. BAT54WT-TP maintains the original operating temperature range (-55°C to 125°C).

BAT54W_R1_00001 (Panjit International Inc.) offers superior forward voltage performance (0.6 V @ 100 mA) in SOT-323 packaging, beneficial for low-power applications requiring reduced power dissipation.

TO-236AB Package Alternatives (PCB Layout Modification Required):

BAT54,215 and BAT54,235 (Nexperia USA Inc.) provide functional equivalence in TO-236AB packaging with improved forward voltage characteristics (0.8 V @ 100 mA) and extended junction temperature rating (150°C maximum). These parts require PCB footprint redesign but offer higher inventory availability.

SOT-23 Package Alternatives (PCB Layout Modification Required):

BAT54-TP (Micro Commercial Co) and BAT54E6327HTSA1 (Infineon Technologies) provide SOT-23 packaging with electrical compatibility. BAT54E6327HTSA1 includes extended junction temperature rating (150°C maximum) and improved forward voltage (0.8 V @ 100 mA).

Automotive-Grade Option:

1PS70SB10,115 (Nexperia USA Inc.) is qualified to AEC-Q100 automotive standards with extended junction temperature (150°C maximum) and improved forward voltage (0.8 V @ 100 mA), suitable for automotive and high-reliability applications.

Frequently Asked Questions (FAQ)

Q: Can BAT54W-7-F be used as a direct replacement for BAT54W-7?

A: Yes. BAT54W-7-F maintains identical electrical specifications (30 V, 200 mA, 1 V forward voltage @ 100 mA, 5 ns recovery time) and SOT-323 packaging. The primary difference is product status (active versus discontinued) and RoHS compliance (ROHS3 compliant versus non-compliant). No circuit modifications are required.

Q: What is the difference between SOT-323 and TO-236AB packages?

A: SOT-323 (SC-70) and TO-236AB (SC-59, SOT-23-3) are distinct surface mount package families with different physical dimensions and PCB footprints. Direct substitution between these packages requires PCB layout modification. Electrical performance is equivalent when specifications match.

Q: Are forward voltage differences significant between substitute parts?

A: Forward voltage variations (0.6 V to 1 V @ 100 mA) affect power dissipation and circuit performance. Lower forward voltage (0.6 V, 0.8 V) reduces power loss and heat generation, beneficial for battery-powered and thermally constrained applications. Higher forward voltage (1 V) maintains original circuit behavior. Selection depends on application requirements.

Q: What does RoHS3 compliance mean for this component?

A: RoHS3 compliance indicates the part meets Restriction of Hazardous Substances Directive requirements, restricting lead, cadmium, mercury, and other hazardous materials. The original BAT54W-7 is RoHS non-compliant. All active substitute parts listed are RoHS3 compliant, meeting current environmental and regulatory standards.

Q: Can BAT54A-TP be used in place of BAT54W-7?

A: BAT54A-TP is a diode array (1 Pair Common Anode) rather than a single diode. While electrical ratings match (30 V, 200 mA, 1 V forward voltage), the internal configuration differs. Substitution is possible only if the circuit design accommodates the common anode configuration. PCB layout modification is required due to SOT-23 packaging.

Q: Which substitute part offers the best thermal performance?

A: Parts with 150°C maximum junction temperature rating (BAT54W,115, 1PS70SB10,115, BAT54,215, BAT54,235, BAT54E6327HTSA1) provide superior thermal performance compared to the original BAT54W-7 (125°C maximum). These parts are suitable for high-temperature environments and applications with elevated ambient conditions.

Q: Is automotive qualification required for my application?

A: Automotive qualification (AEC-Q100, AEC-Q101) is required only for automotive and safety-critical applications. BAT54W,115 (AEC-Q101) and 1PS70SB10,115 (AEC-Q100) meet these standards. For non-automotive applications, qualification is not necessary.

Q: What is the impact of reverse recovery time on circuit performance?

A: Reverse recovery time (trr) affects switching speed and high-frequency performance. The original BAT54W-7 specifies 5 ns recovery time. All substitute parts with specified trr values maintain 5 ns performance. Parts without specified trr values (1PS70SB10,115, BAT54W_R1_00001) are functionally equivalent but recovery time data is not provided in available specifications.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message