MP2735DQG-LF-Z Equivalent & Substitute Parts

Part Overview

The MP2735DQG-LF-Z is a dual-circuit SPDT (Single Pole Double Throw) IC switch manufactured by Monolithic Power Systems Inc., designed for high-speed analog signal routing applications. This interface component operates across a wide supply voltage range of 1.65V to 5.5V and delivers switching performance suitable for broadband signal paths up to 50MHz. The part is currently in active production status with 5,300 units available in new original inventory.

Equivalent substitute parts are necessary when primary part availability is limited, when procurement lead times require alternative sourcing, or when design flexibility permits component interchangeability within the same electrical and mechanical specifications.

Key Parameters

Parameter	Value
Switch Circuit Configuration	SPDT (Single Pole Double Throw)
Number of Circuits	2
Multiplexer/Demultiplexer Circuit	2:1
On-State Resistance (Max)	450mOhm
Channel-to-Channel Matching (ΔRon)	10mOhm
Supply Voltage Range (V+)	1.65V ~ 5.5V
Switch Time - Turn On (Ton Max)	36ns
Switch Time - Turn Off (Toff Max)	30ns
-3dB Bandwidth	50MHz
Channel Capacitance (CS(off), CD(off))	55pF
Leakage Current (IS(off) Max)	40nA
Crosstalk	-70dB @ 100kHz
Operating Temperature Range	-40°C ~ 85°C (TA)
Package Type	10-VFQFN (1.4x1.8mm)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the MP2735DQG-LF-Z is determined by strict parametric equivalence across all critical electrical and mechanical specifications. The substitute parts identified—MP2736DQG-LF-P and MP2736DQG-LF-Z—share identical functional parameters with the main part:

Dual SPDT switch configuration with 2:1 multiplexer/demultiplexer circuit topology
Identical on-state resistance of 450mOhm maximum with 10mOhm channel matching
Full supply voltage range compatibility (1.65V ~ 5.5V)
Matching switch timing specifications (36ns Ton, 30ns Toff)
Identical bandwidth, capacitance, leakage current, and crosstalk performance
Same 10-QFN (1.4x1.8mm) package footprint and surface mount configuration
Equivalent environmental and compliance certifications (ROHS3, MSL 1, REACH Unaffected)

The only distinction between substitute parts lies in packaging format: MP2735DQG-LF-Z is supplied in bulk form, while MP2736DQG-LF-P and MP2736DQG-LF-Z are supplied in Tape & Reel (TR) format. This packaging difference does not affect electrical performance or mechanical compatibility on the PCB.

Parameter Comparison

Parameter	MP2735DQG-LF-Z (Main)	MP2736DQG-LF-P (Substitute)	MP2736DQG-LF-Z (Substitute)
Manufacturer	Monolithic Power Systems Inc.	Monolithic Power Systems Inc.	Monolithic Power Systems
Switch Circuit	SPDT	SPDT	SPDT
Number of Circuits	2	2	2
Multiplexer/Demultiplexer	2:1	2:1	2:1
On-State Resistance (Max)	450mOhm	450mOhm	450mOhm
Channel-to-Channel Matching (ΔRon)	10mOhm	10mOhm	10mOhm
Supply Voltage (V+)	1.65V ~ 5.5V	1.65V ~ 5.5V	1.65V ~ 5.5V
Switch Time Ton (Max)	36ns	36ns	36ns
Switch Time Toff (Max)	30ns	30ns	30ns
-3dB Bandwidth	50MHz	50MHz	50MHz
Channel Capacitance	55pF	55pF	55pF
Leakage Current (Max)	40nA	40nA	40nA
Crosstalk	-70dB @ 100kHz	-70dB @ 100kHz	-70dB @ 100kHz
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Package / Case	10-VFQFN	10-VFQFN	10-VFQFN
Supplier Device Package	10-QFN (1.4x1.8)	10-QFN (1.4x1.8)	10-QFN (1.4x1.8)
Packaging Format	Bulk	Tape & Reel (TR)	Tape & Reel (TR)
Product Status	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

All three parts—MP2735DQG-LF-Z, MP2736DQG-LF-P, and MP2736DQG-LF-Z—maintain active production status and carry identical compliance certifications (ROHS3, REACH Unaffected, MSL 1). Selection between these parts should be based on procurement requirements and packaging format availability:

MP2735DQG-LF-Z: Select when bulk packaging is required or preferred for lower-volume applications
MP2736DQG-LF-P: Select when Tape & Reel packaging is required for automated assembly processes
MP2736DQG-LF-Z: Select when Tape & Reel packaging is required and alternative sourcing is necessary

All three parts are electrically and mechanically interchangeable on the PCB. No design modifications, re-qualification, or performance re-testing are required when substituting between these part numbers.

Frequently Asked Questions (FAQ)

Q: Are MP2735DQG-LF-Z and MP2736DQG-LF-P electrically identical?

A: Yes. Both parts share identical electrical specifications including on-state resistance, switching time, bandwidth, and all other performance parameters. The only difference is packaging format: bulk versus Tape & Reel.

Q: Can I substitute MP2736DQG-LF-Z for MP2735DQG-LF-Z on my PCB without design changes?

A: Yes. Both parts use the same 10-QFN (1.4x1.8mm) package footprint and surface mount configuration. No PCB layout modifications are required.

Q: What does the packaging format difference mean for my assembly process?

A: MP2735DQG-LF-Z is supplied in bulk form, suitable for manual placement or low-volume pick-and-place operations. MP2736DQG-LF-P and MP2736DQG-LF-Z are supplied in Tape & Reel format, optimized for high-speed automated assembly equipment.

Q: Are all three parts RoHS compliant?

A: Yes. All three parts carry ROHS3 compliance certification and are REACH Unaffected.

Q: What is the moisture sensitivity level for these parts?

A: All three parts have MSL 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.

Q: Can I use these parts interchangeably in high-frequency applications?

A: Yes. All three parts deliver identical -3dB bandwidth of 50MHz and crosstalk performance of -70dB @ 100kHz, supporting broadband signal routing applications.

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