Equivalent & Substitute Parts for 1PS193,135 General Purpose Rectifier Diode

Part Overview

The 1PS193,135 is a general purpose rectifier diode manufactured by NXP USA Inc., rated for 80 V DC reverse voltage and 215 mA average rectified current in a surface mount SMT3/MPAK package. This component is classified as obsolete, necessitating identification of active equivalent and substitute parts for ongoing design support and procurement continuity. Substitute parts must maintain electrical compatibility within the specified voltage, current, and thermal operating parameters while accommodating available packaging options.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	80	V
Current - Average Rectified (Io)	215	mA
Voltage - Forward (Vf) (Max) @ If	1.2 V @ 100 mA	V
Reverse Recovery Time (trr)	4	ns
Current - Reverse Leakage @ Vr	500 nA @ 80 V	nA
Capacitance @ Vr, F	1.5	pF @ 0V, 1MHz
Operating Temperature - Junction (Max)	150	°C
Package / Case	TO-236-3, SC-59, SOT-23-3	—
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution eligibility for the 1PS193,135 is determined by the following critical parameters:

Voltage Rating: Substitute parts must have a DC reverse voltage rating (Vr) equal to or greater than 80 V to ensure safe operation in the original circuit.

Current Rating: Substitute parts must support an average rectified current (Io) equal to or greater than 215 mA to handle the design load without thermal stress.

Package Compatibility: All substitute parts must use the TO-236-3, SC-59, or SOT-23-3 surface mount package to ensure mechanical and electrical compatibility with existing PCB layouts.

Recovery Characteristics: Fast recovery diodes (trr ≤ 500 ns) are preferred to maintain switching performance consistency with the original part.

Thermal Rating: Operating temperature junction rating must be 150°C or higher to match the original specification.

Compliance: All substitute parts must maintain ROHS3 compliance and EAR99 export classification.

The following substitute parts meet these criteria:

BAS116-7-F (Diodes Incorporated): Active status, 85 V / 215 mA, standard recovery
BAS16,215 (Nexperia USA Inc.): Active status, 100 V / 215 mA, fast recovery, automotive qualified
BAS16E6327HTSA1 (Infineon Technologies): Last Time Buy status, 80 V / 250 mA, fast recovery
BAS16E6433HTMA1 (Infineon Technologies): Last Time Buy status, 80 V / 250 mA, fast recovery

Parameter Comparison

Parameter	1PS193,135 (NXP)	BAS116-7-F (Diodes Inc.)	BAS16,215 (Nexperia)	BAS16E6327HTSA1 (Infineon)	BAS16E6433HTMA1 (Infineon)
Voltage - DC Reverse (Vr) (Max)	80 V	85 V	100 V	80 V	80 V
Current - Average Rectified (Io)	215 mA	215 mA	215 mA	250 mA	250 mA
Voltage - Forward (Vf) (Max) @ If	1.2 V @ 100 mA	1.25 V @ 150 mA	1.25 V @ 150 mA	1.25 V @ 150 mA	1.25 V @ 150 mA
Speed Classification	Fast Recovery ≤ 500ns	Standard Recovery > 500ns	Fast Recovery ≤ 500ns	Fast Recovery ≤ 500ns	Fast Recovery ≤ 500ns
Reverse Recovery Time (trr)	4 ns	3 µs	4 ns	4 ns	4 ns
Current - Reverse Leakage @ Vr	500 nA @ 80 V	5 nA @ 75 V	500 nA @ 80 V	1 µA @ 75 V	1 µA @ 75 V
Capacitance @ Vr, F	1.5 pF @ 0V, 1MHz	2 pF @ 0V, 1MHz	1.5 pF @ 0V, 1MHz	2 pF @ 0V, 1MHz	2 pF @ 0V, 1MHz
Operating Temperature - Junction	150°C (Max)	-65°C ~ 150°C	150°C (Max)	150°C (Max)	150°C (Max)
Product Status	Obsolete	Active	Active	Last Time Buy	Last Time Buy
Package / Case	TO-236-3, SC-59, SOT-23-3	TO-236-3, SC-59, SOT-23-3	TO-236-3, SC-59, SOT-23-3	TO-236-3, SC-59, SOT-23-3	TO-236-3, SC-59, SOT-23-3
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Primary Recommendation: BAS16,215 (Nexperia USA Inc.)

The BAS16,215 is the preferred substitute for the 1PS193,135. This part maintains active product status, ensuring long-term availability and supply chain stability. It exceeds the original voltage specification (100 V vs. 80 V), provides identical current rating (215 mA), and preserves fast recovery characteristics (4 ns trr). The part carries AEC-Q101 automotive qualification, indicating compliance with stringent reliability standards. ROHS3 compliance and identical package footprint (TO-236-3/SOT-23-3) ensure direct PCB compatibility.

Secondary Recommendation: BAS116-7-F (Diodes Incorporated)

The BAS116-7-F is an active product offering 85 V reverse voltage and 215 mA current rating, meeting the minimum electrical requirements. This part provides the lowest forward voltage drop among available substitutes (1.25 V @ 150 mA). However, it employs standard recovery characteristics (3 µs trr) rather than fast recovery, which may affect switching performance in high-frequency applications. This part is suitable for designs where recovery speed is not critical.

Tertiary Options: BAS16E6327HTSA1 and BAS16E6433HTMA1 (Infineon Technologies)

Both Infineon parts carry Last Time Buy status, indicating discontinued production with limited remaining inventory. These parts provide higher current capacity (250 mA vs. 215 mA) and fast recovery characteristics (4 ns trr). Selection of these parts should be limited to applications requiring the additional current margin and where long-term availability is not a concern. The BAS16E6327HTSA1 is available in Cut Tape packaging, while the BAS16E6433HTMA1 is supplied in Tape & Reel format.

Frequently Asked Questions (FAQ)

Q: Can the BAS116-7-F replace the 1PS193,135 in all applications?

A: The BAS116-7-F meets the minimum voltage (85 V ≥ 80 V) and current (215 mA) requirements. However, its standard recovery time (3 µs) differs significantly from the original fast recovery specification (4 ns). In applications sensitive to switching speed, such as high-frequency rectification or switching power supplies, this difference may affect circuit performance. Verification against specific circuit requirements is necessary.

Q: Why is BAS16,215 recommended over the Infineon parts?

A: The BAS16,215 maintains active product status with assured long-term availability, whereas the Infineon parts are classified as Last Time Buy with limited inventory. For new designs or long-term production, active parts provide superior supply chain reliability. The BAS16,215 also matches the original fast recovery specification and includes automotive qualification.

Q: Are all substitute parts pin-compatible with the original 1PS193,135?

A: Yes. All substitute parts use the TO-236-3, SC-59, or SOT-23-3 package, which share identical pin configurations and PCB footprints. Direct replacement on existing boards is mechanically and electrically feasible without layout modifications.

Q: What is the significance of the voltage rating difference between substitutes?

A: The 1PS193,135 is rated for 80 V reverse voltage. Substitute parts with higher ratings (BAS116-7-F at 85 V, BAS16,215 at 100 V) provide additional safety margin and are fully compatible. Higher voltage ratings do not degrade performance in lower-voltage applications. Parts with equal or lower voltage ratings (BAS16E6327HTSA1 and BAS16E6433HTMA1 at 80 V) are directly equivalent.

Q: How does the current rating difference affect substitution?

A: The original part is rated for 215 mA average rectified current. Substitute parts rated at 215 mA (BAS116-7-F, BAS16,215) are direct equivalents. Parts rated at 250 mA (Infineon options) provide additional thermal headroom and are suitable for applications at or near the 215 mA design point. Higher current ratings do not create compatibility issues.

Q: What is the impact of forward voltage variation among substitutes?

A: Forward voltage ranges from 1.2 V (original) to 1.25 V (substitutes) at their respective test conditions. This 0.05 V difference is negligible in most rectification applications. In precision analog circuits or low-voltage designs, verify that the slightly higher forward voltage does not exceed circuit tolerance limits.

Q: Are there packaging format considerations for procurement?

A: The original 1PS193,135 is supplied in Tape & Reel (TR) format. Substitute parts are available in multiple formats: BAS116-7-F in Cut Tape (CT) & Digi-Reel®, BAS16,215 in Cut Tape (CT) & Digi-Reel®, BAS16E6327HTSA1 in Cut Tape (CT), and BAS16E6433HTMA1 in Tape & Reel (TR). Packaging format selection depends on production volume and assembly equipment compatibility.

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