BAS19,235 Equivalent & Substitute Parts Reference

Part Overview

The BAS19,235 is a general-purpose rectifier diode manufactured by Nexperia USA Inc., rated for 100 V DC reverse voltage and 200 mA average rectified current in a surface mount TO-236AB package. This part is Active status and qualified to AEC-Q100 automotive standards. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to supply constraints, design flexibility, or manufacturing transitions while maintaining functional equivalence within specified parameter ranges.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	100	V
Current - Average Rectified (Io)	200	mA
Voltage - Forward (Vf) (Max) @ If	1.25 @ 200 mA	V
Reverse Recovery Time (trr)	50	ns
Current - Reverse Leakage @ Vr	100 @ 100 V	nA
Capacitance @ Vr, F	5 @ 0V, 1MHz	pF
Package / Case	TO-236-3, SC-59, SOT-23-3	—
Operating Temperature - Junction (Max)	150	°C
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following critical parameters:

Mandatory Equivalence Criteria:

Current - Average Rectified (Io): 200 mA (exact match required)
Voltage - Forward (Vf) (Max) @ If: 1.25 V @ 200 mA (exact match required)
Reverse Recovery Time (trr): 50 ns (exact match required)
Mounting Type: Surface Mount (exact match required)
Package / Case: TO-236-3, SC-59, SOT-23-3 (exact match required)
RoHS Status: ROHS3 Compliant (exact match required)
Moisture Sensitivity Level (MSL): 1 (Unlimited) (exact match required)

Allowable Variation Criteria:

Voltage - DC Reverse (Vr) (Max): 100 V minimum; higher ratings acceptable (100 V, 120 V, 200 V)
Current - Reverse Leakage @ Vr: 100 nA at rated voltage; measured at different reference voltages acceptable
Capacitance @ Vr, F: 2–5 pF range acceptable
Operating Temperature - Junction: -55°C to 150°C range acceptable; maximum 150°C required
Manufacturer: Multiple qualified manufacturers acceptable

Substitute parts are grouped by voltage rating tier: 100 V exact equivalents, 120 V rated equivalents, and 200 V rated equivalents. All listed substitutes maintain identical current, forward voltage, recovery time, and package specifications.

Parameter Comparison

Part Number	Manufacturer	Vr (Max) [V]	Io [mA]	Vf (Max) @ 200mA [V]	trr [ns]	Ir @ Vr [nA]	C @ 0V, 1MHz [pF]	Package	Tj (Max) [°C]	Inventory [Pcs]
BAS19,235	Nexperia USA Inc.	100	200	1.25	50	100 @ 100V	5	TO-236AB	150	10375
BAS19,215	Nexperia USA Inc.	100	200	1.25	50	100 @ 100V	5	TO-236AB	150	4300
BAS19LT1G	onsemi	120	200	1.25	50	100 @ 100V	5	SOT-23-3 (TO-236)	150	355400
BAS19-7-F	Diodes Incorporated	100	200	1.25	50	100 @ 100V	5	SOT-23-3	150	29000
BAS19LT3G	onsemi	120	200	1.25	50	100 @ 100V	5	SOT-23-3 (TO-236)	150	48712
BAS29	onsemi	120	200	1.0	50	100 @ 90V	2	SOT-23-3	150	17346
CMPD2003 TR PBFREE	Central Semiconductor Corp	200	200	1.25	50	100 @ 200V	5	SOT-23	150	33451
NSVBAS19LT1G	onsemi	120	200	1.25	50	100 @ 100V	5	SOT-23-3 (TO-236)	150	71064

Engineering Selection Recommendations

100 V Exact Equivalents (Direct Substitution):

BAS19,215 (Nexperia USA Inc.): Identical electrical and mechanical specifications to BAS19,235. Active status, AEC-Q100 qualified, ROHS3 compliant. Lower inventory availability (4300 pcs).
BAS19-7-F (Diodes Incorporated): Meets all electrical requirements with 100 V rating. Active status, ROHS3 compliant. Higher inventory (29000 pcs). Operating temperature range extends to -65°C.

120 V Rated Equivalents (Higher Voltage Margin):

BAS19LT1G (onsemi): 120 V rating provides 20 V margin above 100 V requirement. Identical electrical performance. Active status, ROHS3 compliant. Highest inventory availability (355400 pcs). Operating temperature range -55°C to 150°C.
BAS19LT3G (onsemi): Functionally identical to BAS19LT1G with 120 V rating. Active status, ROHS3 compliant. Inventory 48712 pcs.
NSVBAS19LT1G (onsemi): 120 V rated variant with identical electrical specifications. Active status, ROHS3 compliant. Highest inventory among 120 V variants (71064 pcs).

200 V Rated Equivalent (Maximum Voltage Margin):

CMPD2003 TR PBFREE (Central Semiconductor Corp): 200 V rating provides maximum voltage margin. Meets all electrical requirements. Active status, ROHS3 compliant. Inventory 33451 pcs. Operating temperature range -65°C to 150°C.

Non-Recommended Substitute:

BAS29 (onsemi): Forward voltage reduced to 1.0 V @ 200 mA (specification deviation from 1.25 V requirement). Reverse leakage measured at 90 V instead of 100 V. Capacitance reduced to 2 pF. Does not meet mandatory equivalence criteria.

All recommended substitutes maintain ROHS3 compliance, MSL 1 (Unlimited) rating, and Active product status. Selection should prioritize inventory availability and voltage margin requirements for the application circuit.

Frequently Asked Questions (FAQ)

Q: Can BAS19,235 be replaced with BAS29?

A: No. BAS29 exhibits parameter deviations that disqualify it as a direct substitute. Forward voltage is specified at 1.0 V @ 200 mA instead of the required 1.25 V @ 200 mA. Reverse leakage is measured at 90 V rather than 100 V. Capacitance is 2 pF instead of 5 pF. These differences indicate a different device design and performance profile.

Q: What is the difference between BAS19,235 and BAS19,215?

A: BAS19,235 and BAS19,215 are parametrically identical. Both are manufactured by Nexperia USA Inc., rated 100 V / 200 mA, with identical forward voltage, recovery time, leakage, and capacitance specifications. Both use TO-236AB packaging. The difference is internal part numbering or manufacturing lot designation. BAS19,215 has lower current inventory (4300 pcs vs. 10375 pcs).

Q: Can I use a 120 V rated diode in place of a 100 V rated diode?

A: Yes. BAS19LT1G, BAS19LT3G, and NSVBAS19LT1G are all rated 120 V and meet all electrical specifications of the BAS19,235. The higher voltage rating provides additional safety margin and does not degrade performance in 100 V applications. All three maintain identical forward voltage, recovery time, leakage, and capacitance specifications.

Q: What is the advantage of CMPD2003 TR PBFREE over other substitutes?

A: CMPD2003 TR PBFREE is rated 200 V, providing the maximum voltage margin above the 100 V requirement. This is beneficial in applications with potential voltage transients or overvoltage conditions. All other electrical parameters (current, forward voltage, recovery time, leakage, capacitance) are identical to BAS19,235. Operating temperature range extends to -65°C.

Q: Are all substitute parts AEC-Q100 qualified?

A: BAS19,235 and BAS19,215 are explicitly qualified to AEC-Q100. Qualification status for other substitutes (BAS19LT1G, BAS19LT3G, BAS19-7-F, CMPD2003 TR PBFREE, NSVBAS19LT1G) is not provided in the specification data. For automotive applications requiring AEC-Q100 qualification, BAS19,235 or BAS19,215 are the only confirmed options.

Q: Do all substitutes use the same package?

A: All substitutes use compatible surface mount packages within the TO-236 / SOT-23-3 family. BAS19,235 and BAS19,215 use TO-236AB. Other substitutes use SOT-23-3 (TO-236) or SOT-23 designations. These packages are mechanically and electrically compatible for PCB assembly, though footprint verification is recommended during design review.

Q: Which substitute has the best inventory availability?

A: BAS19LT1G (onsemi) has the highest inventory at 355400 pcs. This 120 V rated device meets all electrical requirements and provides the fastest procurement lead time for high-volume applications.

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