B330A-13 Schottky Diode Equivalent & Substitute Parts

Part Overview

The B330A-13 is a 30V, 3A Schottky rectifier diode manufactured by Diodes Incorporated in a surface mount SMA (DO-214AC) package. This component is classified as discontinued at DiGi Electronics, creating a requirement to identify functionally equivalent alternatives for ongoing production and repair applications. The part qualifies for automotive applications under AEC-Q101 certification and operates across a junction temperature range of -55°C to 150°C. Equivalent and substitute parts must maintain electrical performance within the specified parameters while accommodating different packaging formats and manufacturer sourcing options.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	30	V
Current - Average Rectified (Io)	3	A
Voltage - Forward (Vf) (Max) @ If	500 mV @ 3 A	mV
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	ns
Current - Reverse Leakage @ Vr	500	µA @ 30 V
Technology	Schottky	—
Package / Case	DO-214AC, SMA	—
Mounting Type	Surface Mount	—
Operating Temperature - Junction	-55 to 150	°C
Grade	Automotive	—
Qualification	AEC-Q101	—

Substitute Part Grouping Explanation

Substitute parts for the B330A-13 are classified into three categories based on electrical and mechanical compatibility:

Category 1: Direct Manufacturer Equivalents (Diodes Incorporated) These parts maintain identical electrical specifications and package format. Substitution is based on matching voltage rating (30V), current rating (3A), forward voltage characteristics (500 mV @ 3A), and surface mount SMA package. Differences exist only in packaging format (Cut Tape vs. Tape & Reel) and product status (Active vs. Discontinued).

Category 2: Parametric Equivalents (Same Manufacturer, Different Packaging) Parts with identical electrical performance but alternative tape and reel configurations. The B330AQ-13-F maintains all core electrical parameters while offering different supply chain packaging.

Category 3: Cross-Manufacturer Equivalents (Voltage/Current Match) Parts from alternative manufacturers (Nexperia, Rohm, Micro Commercial, Vishay, STMicroelectronics, Central Semiconductor) that meet the 30V/3A electrical specification. These parts maintain fast recovery Schottky technology and surface mount packaging. Variations occur in forward voltage (420–500 mV @ 3A), reverse leakage current (150–500 µA @ 30V), and capacitance characteristics. One part (CMSH3-40MA TR13 PBFREE) offers elevated voltage rating (40V) for applications requiring additional voltage margin.

Key Parameters for Substitution:

Voltage rating: 30V minimum (40V acceptable for margin)
Current rating: 3A minimum
Technology: Schottky (Fast Recovery)
Package: DO-214AC/SMA surface mount
Forward voltage: 420–500 mV @ 3A
Reverse leakage: ≤ 500 µA @ rated voltage

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vr (Max) V	Io (A)	Vf (Max) @ If (mV)	Reverse Leakage @ Vr (µA)	Package	Product Status	RoHS Status
B330A-13	Diodes Incorporated	30	3	500 @ 3A	500 @ 30V	DO-214AC, SMA	Discontinued	Non-compliant
B330A-13-F	Diodes Incorporated	30	3	500 @ 3A	500 @ 30V	DO-214AC, SMA	Active	ROHS3 Compliant
B330AQ-13-F	Diodes Incorporated	30	3	500 @ 3A	500 @ 30V	DO-214AC, SMA	Active	ROHS3 Compliant
CMSH3-40MA TR13 PBFREE	Central Semiconductor Corp	40	3	500 @ 3A	500 @ 40V	DO-214AC, SMA	Active	ROHS3 Compliant
PMEG3030BEP,115	Nexperia USA Inc.	30	3	450 @ 3A	150 @ 30V	SOD-128	Active	ROHS3 Compliant
RSX301L-30TE25	Rohm Semiconductor	30	3	420 @ 3A	200 @ 30V	DO-214AC, SMA	Not For New Designs	ROHS3 Compliant
SK33A-LTP	Micro Commercial Co	30	3	500 @ 3A	500 @ 30V	DO-214AC, SMA	Not For New Designs	ROHS3 Compliant
SSA33L-E3/61T	Vishay General Semiconductor	30	3	450 @ 3A	500 @ 30V	DO-214AC, SMA	Active	ROHS3 Compliant
SSA33L-M3/5AT	Vishay General Semiconductor	30	3	450 @ 3A	500 @ 30V	DO-214AC, SMA	Active	ROHS3 Compliant
SSA33LHE3_A/H	Vishay General Semiconductor	30	3	450 @ 3A	500 @ 30V	DO-214AC, SMA	Active	ROHS3 Compliant
STPS130A	STMicroelectronics	30	1	550 @ 1A	10 @ 30V	DO-214AC, SMA	Active	ROHS3 Compliant

Engineering Selection Recommendations

Primary Recommendation: B330A-13-F The B330A-13-F is the direct successor to the B330A-13, manufactured by Diodes Incorporated with identical electrical specifications. This part is currently active in production, ROHS3 compliant, and available in high volume (70,100 pcs). It maintains the same 30V/3A rating, 500 mV forward voltage, and automotive AEC-Q101 qualification. The primary difference is packaging format (Cut Tape & Digi-Reel vs. original format) and RoHS compliance status. This part is suitable for all applications previously using the B330A-13.

Secondary Recommendation: B330AQ-13-F The B330AQ-13-F provides identical electrical performance to the B330A-13-F with Tape & Reel packaging. This variant is appropriate for high-volume automated assembly operations. Current inventory is lower (1,064 pcs) compared to the B330A-13-F.

Alternative Recommendation: SSA33L Series (Vishay) The SSA33L-E3/61T, SSA33L-M3/5AT, and SSA33LHE3_A/H from Vishay General Semiconductor maintain the 30V/3A specification with forward voltage of 450 mV @ 3A (50 mV improvement over the original). The SSA33LHE3_A/H variant includes automotive AEC-Q101 qualification matching the original part's grade. These parts are active in production with substantial inventory availability (2,535–22,310 pcs). Package format is DO-214AC/SMA, identical to the original.

Alternative Recommendation: CMSH3-40MA TR13 PBFREE (Central Semiconductor) This part offers elevated voltage rating (40V vs. 30V) while maintaining 3A current capacity. The 40V rating provides additional voltage margin for applications subject to transient overvoltage conditions. Forward voltage remains at 500 mV @ 3A. This part is active in production with high inventory (234,827 pcs). Use this variant only when the elevated voltage rating is required or beneficial.

Not Recommended for New Designs: RSX301L-30TE25 (Rohm) and SK33A-LTP (Micro Commercial) are marked "Not For New Designs" and should be used only for legacy system maintenance or repair applications where exact form-factor compatibility is critical.

Not Recommended: STPS130A (STMicroelectronics) has reduced current rating (1A vs. 3A) and is not suitable as a direct substitute for 3A applications.

Not Recommended: PMEG3030BEP,115 (Nexperia) uses SOD-128 package instead of DO-214AC/SMA, requiring PCB layout modification and is not a direct mechanical substitute.

Frequently Asked Questions (FAQ)

Q: Can I use B330A-13-F as a direct replacement for B330A-13? A: Yes. The B330A-13-F is electrically identical to the B330A-13 with matching 30V/3A specifications, forward voltage (500 mV @ 3A), and automotive AEC-Q101 qualification. The primary differences are packaging format and RoHS3 compliance status. No circuit modifications are required.

Q: What is the difference between B330A-13-F and B330AQ-13-F? A: Both parts have identical electrical specifications. The difference is packaging format: B330A-13-F is supplied in Cut Tape & Digi-Reel format, while B330AQ-13-F is supplied in Tape & Reel format. Select based on your assembly equipment and supply chain requirements.

Q: Can I substitute a 40V rated diode (CMSH3-40MA) for the 30V B330A-13? A: Yes, with consideration. The CMSH3-40MA TR13 PBFREE maintains the 3A current rating and 500 mV forward voltage. The elevated 40V voltage rating is backward compatible with 30V applications and provides additional transient overvoltage protection. Use this variant when voltage margin is beneficial or required.

Q: Why is PMEG3030BEP,115 not recommended as a substitute? A: The PMEG3030BEP,115 uses SOD-128 package instead of DO-214AC/SMA. This requires PCB layout modification and is not a direct mechanical substitute. Additionally, the SOD-128 package has different thermal and electrical characteristics. Use only if PCB redesign is acceptable.

Q: What is the difference between Vishay SSA33L variants (E3/61T, M3/5AT, LHE3_A/H)? A: All three Vishay variants maintain identical 30V/3A electrical specifications and 450 mV forward voltage. Differences are in packaging format and tape configuration: E3/61T is Cut Tape & Digi-Reel, M3/5AT is Tape & Reel, and LHE3_A/H is Tape & Reel with automotive AEC-Q101 qualification. Select based on assembly equipment and qualification requirements.

Q: Is the B330A-13 RoHS compliant? A: The original B330A-13 is RoHS non-compliant. The B330A-13-F and all recommended substitutes are ROHS3 compliant. If RoHS compliance is required for your application, use B330A-13-F or alternative parts marked ROHS3 compliant.

Q: Can I use STPS130A as a substitute? A: No. The STPS130A has a reduced current rating of 1A compared to the 3A requirement of the B330A-13. This part is not suitable for applications requiring 3A current capacity.

Q: What is the operating temperature range for substitute parts? A: The B330A-13 operates from -55°C to 150°C junction temperature. Most substitute parts operate from -65°C to 150°C or -50°C to 125°C. Verify the specific operating temperature range of your selected substitute matches your application requirements.

Q: Are all substitute parts automotive qualified? A: No. Only B330A-13, B330A-13-F, B330AQ-13-F, and SSA33LHE3_A/H carry AEC-Q101 automotive qualification. Other substitutes are industrial grade. Use automotive-qualified parts for automotive applications.

Q: What is the difference in forward voltage between substitute parts? A: Forward voltage varies from 420 mV to 550 mV @ rated current. The original B330A-13 and most substitutes specify 500 mV @ 3A. Vishay SSA33L series and Rohm RSX301L specify lower forward voltage (450 mV and 420 mV respectively), resulting in reduced power dissipation. STPS130A specifies 550 mV @ 1A but at reduced current rating.

Q: What is reverse leakage current and why does it vary? A: Reverse leakage current is the small current flowing through the diode when reverse biased. The B330A-13 specifies 500 µA @ 30V. Substitutes range from 10 µA to 500 µA. Lower reverse leakage reduces standby power consumption. Nexperia PMEG3030BEP,115 offers the lowest leakage (150 µA), while STMicroelectronics STPS130A offers the lowest (10 µA) but at reduced current rating.

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