BAS16E6433HTMA1 Equivalent & Substitute Parts

Part Overview

The BAS16E6433HTMA1 is a general-purpose fast recovery diode manufactured by Infineon Technologies, rated for 80 V DC reverse voltage and 250 mA average rectified current in a surface mount SOT-23-3 package. This device is classified as Last Time Buy, indicating discontinued production with limited availability (883 pcs in stock). The part operates at a maximum junction temperature of 150°C and features a reverse recovery time of 4 ns, making it suitable for high-speed switching applications requiring fast recovery characteristics.

Substitute parts are necessary due to product discontinuation status and to provide alternative sourcing options from active manufacturers with equivalent or superior electrical performance and identical mechanical compatibility.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	80	V
Current - Average Rectified (Io)	250	mA
Voltage - Forward (Vf) (Max) @ If	1.25 @ 150 mA	V
Speed Classification	Fast Recovery ≤ 500ns, > 200mA	—
Reverse Recovery Time (trr)	4	ns
Current - Reverse Leakage @ Vr	1 @ 75 V	µA
Capacitance @ Vr, F	2 @ 0V, 1MHz	pF
Package / Case	TO-236-3, SC-59, SOT-23-3	—
Mounting Type	Surface Mount	—
Operating Temperature - Junction (Max)	150	°C
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution eligibility for the BAS16E6433HTMA1 is determined by the following critical parameters:

Mandatory Compatibility Criteria:

Package / Case: TO-236-3, SC-59, SOT-23-3 (identical mechanical footprint required)
Mounting Type: Surface Mount
Voltage - DC Reverse (Vr) (Max): ≥ 80 V (equal or higher rating)
Current - Average Rectified (Io): ≥ 250 mA (equal or higher rating)
Voltage - Forward (Vf) (Max) @ If: ≤ 1.25 V @ 150 mA (equal or lower forward drop)
Speed Classification: Fast Recovery ≤ 500ns, > 200mA (fast recovery required)
Reverse Recovery Time (trr): ≤ 4 ns (equal or faster)
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)

Substitute parts are grouped into two categories:

Category 1: Parametric Equivalents (Identical Electrical Specifications) Parts meeting all mandatory criteria with matching or superior electrical performance and identical package specifications.

Category 2: Direct Manufacturer Alternatives (Functional Equivalents) Parts from alternative manufacturers with equivalent or superior ratings that maintain mechanical compatibility and fast recovery characteristics, though some parameters may vary within acceptable engineering tolerances.

Parameter Comparison

Part Number	Manufacturer	Vr (Max) V	Io mA	Vf (Max) @ If V	trr ns	Speed	Package	Status	Inventory
BAS16E6433HTMA1	Infineon	80	250	1.25 @ 150mA	4	Fast Recovery ≤500ns	SOT-23-3	Last Time Buy	883
BAS16E6327HTSA1	Infineon	80	250	1.25 @ 150mA	4	Fast Recovery ≤500ns	SOT-23-3	Last Time Buy	2400
SBAS16LT1G	onsemi	100	200	1.25 @ 150mA	6	Small Signal ≤200mA	SOT-23-3	Active	71200
BAS116,215	Nexperia	75	215	1.25 @ 150mA	3000	Standard Recovery >500ns	SOT-23-3	Active	4104
BAS116,235	Nexperia	75	215	1.25 @ 150mA	3000	Standard Recovery >500ns	SOT-23-3	Active	116588
BAS116LT1G	onsemi	75	200	1.25 @ 150mA	3000	Small Signal ≤200mA	SOT-23-3	Active	17300
BAS16,215	Nexperia	100	215	1.25 @ 150mA	4	Fast Recovery ≤500ns	SOT-23-3	Active	661673
BAS16,235	NXP	100	215	1.25 @ 150mA	4	Fast Recovery ≤500ns	SOT-23-3	Active	1942791
BAS16-7-F	Diodes Inc	75	300	1.25 @ 150mA	4	Fast Recovery ≤500ns	SOT-23-3	Active	310700
BAS16-G	Comchip	75	200	1.25 @ 150mA	6	Small Signal ≤200mA	SOT-23-3	Active	764
BAS16-TP	Micro Commercial	100	300	1.25 @ 100mA	4	Fast Recovery ≤500ns	SOT-23-3	Active	155400

Engineering Selection Recommendations

Recommended Primary Substitutes (Highest Compatibility):

BAS16E6327HTSA1 (Infineon Technologies) — Parametric equivalent with identical electrical specifications. Differs only in packaging format (Cut Tape vs. Tape & Reel). Suitable for direct replacement with higher inventory availability (2400 pcs).
BAS16,235 (NXP Semiconductors) — Active product status with superior voltage rating (100 V vs. 80 V), matching fast recovery speed (4 ns), and higher current capacity (215 mA). Largest inventory (1,942,791 pcs). Automotive qualified (AEC-Q101).
BAS16,215 (Nexperia USA Inc.) — Active product with 100 V rating, fast recovery characteristics (4 ns), and automotive qualification (AEC-Q101). Extensive inventory (661,673 pcs).
BAS16-TP (Micro Commercial Co) — Active product with superior voltage (100 V) and current ratings (300 mA), fast recovery (4 ns), and high inventory (155,400 pcs).

Secondary Substitutes (Functional Alternatives with Parameter Deviations):

BAS16-7-F (Diodes Incorporated) — Active product with fast recovery (4 ns) and higher current capacity (300 mA), but lower voltage rating (75 V). Suitable where voltage margin is not critical.
SBAS16LT1G (onsemi) — Active product with higher voltage rating (100 V) and automotive qualification (AEC-Q101), but reduced current capacity (200 mA) and slower recovery (6 ns). Suitable for lower-current applications.

Not Recommended for Direct Substitution:

BAS116 series (BAS116,215, BAS116,235, BAS116LT1G) — Standard recovery devices (>500ns or 3 µs) do not meet fast recovery requirement (≤500ns, 4 ns). Voltage rating reduced to 75 V. Current capacity reduced to 200-215 mA. Suitable only for non-critical switching applications where recovery speed is not a design constraint.
BAS16-G (Comchip Technology) — Small signal classification with slower recovery (6 ns) and reduced current capacity (200 mA). Limited inventory (764 pcs).

Compliance Status:

All recommended substitutes maintain ROHS3 compliance, MSL Level 1 (Unlimited), and identical SOT-23-3 package specifications. Automotive-qualified alternatives (BAS16,235, BAS16,215, SBAS16LT1G) carry AEC-Q101 or AEC-Q100 certification.

Frequently Asked Questions (FAQ)

Q1: Can BAS16E6327HTSA1 replace BAS16E6433HTMA1 directly?

A: Yes. BAS16E6327HTSA1 is a parametric equivalent with identical electrical specifications (80 V, 250 mA, 4 ns recovery). The only difference is packaging format: BAS16E6327HTSA1 is supplied in Cut Tape (CT) while BAS16E6433HTMA1 is Tape & Reel (TR). Both are compatible with standard pick-and-place equipment. Select based on your assembly process requirements.

Q2: Why do some substitutes have higher voltage ratings (100 V) than the original (80 V)?

A: Higher voltage ratings provide additional design margin and are fully compatible with circuits designed for 80 V operation. A 100 V diode will function correctly in an 80 V application. This is a conservative design practice and does not introduce incompatibility.

Q3: What is the difference between "Fast Recovery" and "Small Signal" speed classifications?

A: Fast Recovery diodes (≤500ns, trr ≤ 4 ns) are optimized for high-frequency switching applications and exhibit minimal reverse recovery current. Small Signal diodes (≤200mA, any speed) are designed for low-current signal applications and may have slower recovery times (6 ns or higher). For the BAS16E6433HTMA1 application, Fast Recovery classification is required to maintain switching performance.

Q4: Can I use BAS116,235 instead of BAS16E6433HTMA1?

A: BAS116,235 is not recommended as a direct substitute. While it maintains the SOT-23-3 package and 1.25 V forward voltage, it has a lower voltage rating (75 V vs. 80 V), reduced current capacity (215 mA vs. 250 mA), and significantly slower recovery time (3 µs vs. 4 ns). This part is classified as Standard Recovery, not Fast Recovery. Use only if your circuit does not require fast switching performance.

Q5: Which substitute offers the best inventory availability?

A: BAS16,235 (NXP Semiconductors) offers the highest inventory with 1,942,791 pcs in stock. This part also provides superior electrical specifications (100 V, 215 mA, 4 ns recovery) and active product status with automotive qualification (AEC-Q101).

Q6: Are all substitutes RoHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and MSL Level 1 (Unlimited) moisture sensitivity rating, matching the original BAS16E6433HTMA1 specifications.

Q7: What is the difference between Tape & Reel (TR) and Cut Tape (CT) packaging?

A: Tape & Reel (TR) packaging supplies components on continuous tape wound on reels, suitable for high-volume automated assembly. Cut Tape (CT) supplies components on tape segments, suitable for lower-volume or manual assembly. Both formats are compatible with standard pick-and-place equipment. Select based on your production volume and assembly process.

Q8: Can I use BAS16-TP for applications requiring 250 mA current?

A: Yes. BAS16-TP is rated for 300 mA average rectified current, which exceeds the 250 mA requirement of the original part. It also provides a higher voltage rating (100 V) and maintains fast recovery characteristics (4 ns). This part is suitable for direct substitution with improved current margin.

Q9: Why is SBAS16LT1G listed as a substitute if it has lower current capacity (200 mA)?

A: SBAS16LT1G is listed as a functional alternative for applications where the actual operating current is below 200 mA. It provides a higher voltage rating (100 V) and automotive qualification (AEC-Q101). However, if your circuit requires the full 250 mA rating, this part is not suitable. Verify actual current requirements before selection.

Q10: What does "Last Time Buy" status mean for BAS16E6433HTMA1?

A: Last Time Buy indicates that Infineon has discontinued this product and will not manufacture additional units beyond existing inventory. The 883 pcs currently in stock represent the final available supply. Immediate substitution planning is necessary for long-term production continuity. Select an active product substitute to ensure ongoing availability.

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