BAS216,135 Equivalent & Substitute Parts Reference

Part Overview

The BAS216,135 is a general-purpose rectifier diode manufactured by NXP USA Inc., rated for 75 V DC reverse voltage and 250 mA average rectified current in a SOD-110 surface mount package. This part is classified as obsolete, making equivalent and substitute parts necessary for new designs and ongoing production requirements. The BAS216,135 features fast recovery characteristics with a 4 ns reverse recovery time, suitable for applications requiring rapid switching performance in low-voltage rectification circuits.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	75	V
Current - Average Rectified (Io)	250	mA
Voltage - Forward (Vf) (Max) @ If	1.25 @ 150 mA	V
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Reverse Recovery Time (trr)	4	ns
Current - Reverse Leakage @ Vr	1	µA @ 75 V
Capacitance @ Vr, F	1.5	pF @ 0V, 1MHz
Package / Case	SOD-110	—
Operating Temperature - Junction (Max)	150	°C
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the BAS216,135 is determined by the following critical parameters:

Primary Substitution Criteria:

Voltage - DC Reverse (Vr) rating must equal or exceed 75 V
Current - Average Rectified (Io) must equal or exceed 250 mA
Speed classification must be Fast Recovery (≤ 500ns, > 200mA)
Reverse Recovery Time (trr) must equal 4 ns
Mounting type must be Surface Mount
RoHS3 compliance required

Secondary Compatibility Factors:

Forward voltage (Vf) characteristics
Reverse leakage current specifications
Operating temperature range
Package form factor and footprint compatibility

The three substitute parts listed below meet the primary substitution criteria with varying degrees of parameter alignment and package configurations.

Parameter Comparison

Parameter	BAS216,135 (Main)	BAS316,135	CDSF355B	CMOD4448 TR PBFREE
Manufacturer	NXP USA Inc.	Nexperia USA Inc.	Comchip Technology	Central Semiconductor Corp
Voltage - DC Reverse (Vr) (Max)	75 V	100 V	80 V	75 V
Current - Average Rectified (Io)	250 mA	250 mA	100 mA	250 mA
Voltage - Forward (Vf) (Max) @ If	1.25 V @ 150 mA	1.25 V @ 150 mA	1 V @ 100 mA	1 V @ 100 mA
Speed Classification	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA	Small Signal ≤ 200mA, Any Speed	Fast Recovery ≤ 500ns, > 200mA
Reverse Recovery Time (trr)	4 ns	4 ns	4 ns	4 ns
Current - Reverse Leakage @ Vr	1 µA @ 75 V	500 nA @ 80 V	100 nA @ 80 V	25 nA @ 20 V
Capacitance @ Vr, F	1.5 pF @ 0V, 1MHz	1.5 pF @ 0V, 1MHz	3 pF @ 0.5V, 1MHz	4 pF @ 0V, 1MHz
Package / Case	SOD-110	SOD-323	1005 (2512 Metric)	SOD-523
Operating Temperature - Junction (Max)	150°C	150°C	125°C	150°C
Product Status	Obsolete	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

BAS316,135 (Nexperia USA Inc.)

The BAS316,135 is the primary manufacturer-recommended substitute. It maintains identical electrical performance specifications: 250 mA average rectified current, 4 ns reverse recovery time, and fast recovery speed classification. The voltage rating is increased to 100 V, providing enhanced margin for applications originally designed for 75 V operation. Forward voltage characteristics remain identical at 1.25 V @ 150 mA. The part is active in production with AEC-Q101 automotive qualification and ROHS3 compliance. The primary design consideration is package transition from SOD-110 to SOD-323 (SC-76), which requires PCB layout modification. This substitute is suitable for new designs and production transitions where package redesign is feasible.

CMOD4448 TR PBFREE (Central Semiconductor Corp)

The CMOD4448 TR PBFREE maintains exact electrical specifications matching the BAS216,135: 75 V reverse voltage, 250 mA average rectified current, and 4 ns reverse recovery time. Fast recovery speed classification is preserved. The part is active in production with ROHS3 compliance and an extended operating temperature range of -65°C to 150°C. The package transition from SOD-110 to SOD-523 (SC-79) requires PCB layout modification. This substitute is appropriate for applications requiring identical voltage and current ratings with minimal electrical parameter changes.

CDSF355B (Comchip Technology)

The CDSF355B presents a partial substitute with reduced current rating of 100 mA versus the original 250 mA specification. The voltage rating is 80 V, exceeding the original 75 V requirement. Speed classification differs: this part is categorized as Small Signal (≤ 200mA, Any Speed) rather than Fast Recovery. Reverse recovery time remains 4 ns. The package is 1005 (2512 Metric), requiring significant PCB layout modification. This substitute is applicable only to applications where the 100 mA current limit is acceptable and fast recovery characteristics are not critical. The reduced maximum junction temperature of 125°C versus 150°C must be evaluated for thermal margin.

Product Status Consideration:

All three substitute parts are active in production, eliminating obsolescence risk associated with the BAS216,135. Selection should prioritize electrical parameter alignment with application requirements and package compatibility with existing or planned PCB designs.

Frequently Asked Questions (FAQ)

Q: Can the BAS316,135 be used as a direct replacement for the BAS216,135 without circuit modification?

A: The BAS316,135 is electrically compatible with identical current and speed ratings. However, the package changes from SOD-110 to SOD-323, requiring PCB footprint modification. No circuit-level changes are necessary if the new package footprint is accommodated in the layout.

Q: What is the significance of the voltage rating increase from 75 V to 100 V in the BAS316,135?

A: The increased voltage rating provides additional reverse voltage margin. Applications designed for 75 V operation will function with the 100 V rated BAS316,135. This does not introduce compatibility issues; it extends the safe operating range.

Q: Why is the CDSF355B listed as a substitute if its current rating is only 100 mA?

A: The CDSF355B is listed as a manufacturer-identified substitute but with a critical limitation: the 100 mA average rectified current is insufficient for applications requiring the full 250 mA specification of the BAS216,135. This part is suitable only for applications where the actual circuit current demand does not exceed 100 mA.

Q: What are the package footprint differences between the three substitutes?

A: The BAS216,135 uses SOD-110 package. The BAS316,135 uses SOD-323 (SC-76), a smaller package. The CDSF355B uses 1005 (2512 Metric), a larger rectangular package. The CMOD4448 uses SOD-523 (SC-79), a very small package. Each transition requires specific PCB layout redesign.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. The BAS216,135 and all three substitute parts (BAS316,135, CDSF355B, CMOD4448 TR PBFREE) are ROHS3 compliant, meeting environmental and regulatory requirements for lead-free manufacturing.

Q: Which substitute offers the best thermal performance?

A: The BAS216,135, BAS316,135, and CMOD4448 TR PBFREE all support maximum junction temperatures of 150°C. The CDSF355B is limited to 125°C maximum junction temperature, reducing thermal margin by 25°C. For applications with elevated ambient temperatures or high power dissipation, the 150°C rated parts are preferred.

Q: Does the reverse leakage current difference between substitutes affect circuit performance?

A: Reverse leakage current varies significantly: BAS216,135 at 1 µA, BAS316,135 at 500 nA, CDSF355B at 100 nA, and CMOD4448 at 25 nA. Lower leakage is generally beneficial for precision analog circuits and high-impedance applications. For standard rectification applications, these differences are typically negligible.

Q: Can the CMOD4448 be used in high-temperature applications?

A: The CMOD4448 supports an extended operating temperature range of -65°C to 150°C, compared to the standard 0°C to 150°C range implied by the BAS216,135 specifications. This makes it suitable for industrial and automotive applications requiring wider temperature operation.

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