PI5A3157BC6EX-1507 Equivalent & Substitute Parts

Part Overview

The PI5A3157BC6EX-1507 is a single-circuit SPDT (Single Pole Double Throw) analog switch manufactured by Diodes Incorporated, designed for high-speed signal routing applications. This interface component operates across a supply voltage range of 1.65V to 5.5V and delivers switching performance suitable for broadband signal paths up to 350MHz. The part is classified as Active product status with full RoHS3 and REACH compliance, making it suitable for current production designs and procurement cycles.

Equivalent and substitute parts become necessary when addressing inventory constraints, lead time variations, or specific packaging requirements while maintaining electrical and mechanical compatibility within the same product family.

Key Parameters

Parameter	Value
Switch Circuit Configuration	SPDT (Single Pole Double Throw)
Multiplexer/Demultiplexer Circuit	2:1
Number of Circuits	1
On-State Resistance (Max)	11Ohm
Channel-to-Channel Matching (ΔRon)	150mOhm
Supply Voltage Range (V+)	1.65V ~ 5.5V
Switch Time (Ton, Toff) (Max)	5.2ns, 4.5ns
-3dB Bandwidth	350MHz
Charge Injection	7pC
Channel Capacitance (CS(off), CD(off))	2.5pF
Current - Leakage (IS(off)) (Max)	100nA
Crosstalk	-64dB @ 10MHz
Operating Temperature Range	-40°C ~ 85°C (TA)
Package / Case	6-TSSOP, SC-88, SOT-363
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
REACH Status	REACH Unaffected

Substitute Part Grouping Explanation

Substitution eligibility for the PI5A3157BC6EX-1507 is determined by strict adherence to the following electrical and mechanical parameters:

Primary Substitution Criteria:

Switch circuit configuration: SPDT
Multiplexer/Demultiplexer circuit: 2:1
Number of circuits: 1
Supply voltage range: 1.65V ~ 5.5V
Operating temperature range: -40°C ~ 85°C
Package / Case: 6-TSSOP, SC-88, SOT-363
Mounting type: Surface Mount
RoHS3 Compliance: Required
REACH Status: REACH Unaffected

Secondary Compatibility Parameters:

On-State Resistance (Max): 11Ohm (baseline specification)
Channel-to-Channel Matching (ΔRon): 150mOhm
Charge Injection: 7pC
Current - Leakage (IS(off)) (Max): 100nA

Substitute parts must maintain all primary criteria identically. Secondary parameters may exhibit minor variations within the PI5A3157 product family while remaining functionally equivalent for standard signal routing applications.

Parameter Comparison

Parameter	PI5A3157BC6EX-1507 (Main)	PI5A3157BC6EX (Substitute)	PI5A3157CEX (Substitute)
Manufacturer	Diodes Incorporated	Diodes Incorporated	Diodes Incorporated
Switch Circuit	SPDT	SPDT	SPDT
Multiplexer/Demultiplexer Circuit	2:1	2:1	2:1
Number of Circuits	1	1	1
On-State Resistance (Max)	11Ohm	11Ohm	13Ohm
Channel-to-Channel Matching (ΔRon)	150mOhm	150mOhm	150mOhm
Supply Voltage Range (V+)	1.65V ~ 5.5V	1.65V ~ 5.5V	1.65V ~ 5.5V
Switch Time Ton (Max)	5.2ns	5.2ns	5.2ns
Switch Time Toff (Max)	4.5ns	4.5ns	4.6ns
-3dB Bandwidth	350MHz	350MHz	250MHz
Charge Injection	7pC	7pC	7pC
Channel Capacitance (CS(off), CD(off))	2.5pF	2.5pF	2.3pF
Current - Leakage (IS(off)) (Max)	100nA	100nA	100nA
Crosstalk	-64dB @ 10MHz	-64dB @ 10MHz	-54dB @ 10MHz
Operating Temperature Range	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Package / Case	6-TSSOP, SC-88, SOT-363	6-TSSOP, SC-88, SOT-363	6-TSSOP, SC-88, SOT-363
Mounting Type	Surface Mount	Surface Mount	Surface Mount
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected
Product Status	Active	Active	Active

Engineering Selection Recommendations

PI5A3157BC6EX (Tape & Reel Packaging)

This substitute maintains identical electrical specifications to the main part number PI5A3157BC6EX-1507, including on-state resistance of 11Ohm, bandwidth of 350MHz, and crosstalk performance of -64dB @ 10MHz. The primary distinction is packaging format (Tape & Reel versus the original specification). Both parts carry Active product status, ROHS3 compliance, and REACH Unaffected designation. This substitute is suitable for direct replacement in production environments where tape and reel packaging is acceptable.

PI5A3157CEX (Cut Tape & Digi-Reel Packaging)

This substitute operates within the same electrical family but exhibits measurable parameter variations: on-state resistance increases to 13Ohm (from 11Ohm), bandwidth reduces to 250MHz (from 350MHz), crosstalk degrades to -54dB @ 10MHz (from -64dB @ 10MHz), and channel capacitance decreases to 2.3pF (from 2.5pF). Switch-off time improves to 4.6ns (from 4.5ns). This part maintains identical supply voltage range, operating temperature, and compliance certifications. Selection of PI5A3157CEX is appropriate for applications where the reduced bandwidth and increased on-state resistance are acceptable trade-offs, or where Cut Tape & Digi-Reel packaging is required.

Both substitute parts share the same base product number (PI5A3157), confirming family-level compatibility and design validation by the manufacturer.

Frequently Asked Questions (FAQ)

Q: Can PI5A3157BC6EX replace PI5A3157BC6EX-1507 directly?

A: Yes. PI5A3157BC6EX is electrically and mechanically identical to PI5A3157BC6EX-1507. The difference is packaging format: PI5A3157BC6EX is supplied in Tape & Reel format, while PI5A3157BC6EX-1507 follows the original specification. Both maintain 11Ohm on-state resistance, 350MHz bandwidth, and -64dB crosstalk performance.

Q: Is PI5A3157CEX suitable as a substitute?

A: PI5A3157CEX is a parametric equivalent within the PI5A3157 family but exhibits reduced performance in specific parameters. On-state resistance increases to 13Ohm, bandwidth reduces to 250MHz, and crosstalk degrades to -54dB @ 10MHz. This part is suitable only for applications where these reduced specifications are acceptable.

Q: What are the packaging differences between substitute parts?

A: PI5A3157BC6EX is supplied in Tape & Reel (TR) format. PI5A3157CEX is supplied in Cut Tape (CT) & Digi-Reel format. Both use the same SOT-363-6 (SC-70) physical package. Packaging selection depends on assembly process requirements and inventory management practices.

Q: Do all substitute parts meet RoHS3 and REACH compliance?

A: Yes. PI5A3157BC6EX-1507, PI5A3157BC6EX, and PI5A3157CEX are all ROHS3 Compliant and REACH Unaffected, meeting current environmental and regulatory requirements.

Q: What is the operating temperature range for all parts?

A: All parts operate across -40°C to 85°C (TA), maintaining identical thermal specifications.

Q: Can these parts be used interchangeably on the same PCB?

A: Yes, from a physical and thermal standpoint. All three parts use the same 6-TSSOP, SC-88, SOT-363 package with Surface Mount configuration. Electrical interchangeability depends on application requirements: PI5A3157BC6EX is a direct electrical replacement, while PI5A3157CEX requires circuit validation due to bandwidth and crosstalk differences.

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