HI9P0303-9 Equivalent & Substitute Parts

Part Overview

The HI9P0303-9 is a 2-circuit IC switch with SPDT configuration and 50Ohm on-state resistance, manufactured by Renesas Electronics Corporation in a 14-SOIC surface mount package. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The part operates across a wide supply voltage range (5V to 34V single supply, or ±5V to ±20V dual supply) with switching times of 300ns (Ton) and 250ns (Toff).

Key Parameters

Parameter	Value
Manufacturer Part Number	HI9P0303-9
Manufacturer	Renesas Electronics Corporation
Category	Interface
Switch Circuit Type	SPDT
Number of Circuits	2
Multiplexer/Demultiplexer Configuration	2:1
On-State Resistance (Max)	50Ohm
Voltage - Supply, Single (V+)	5V ~ 34V
Voltage - Supply, Dual (V±)	±5V ~ 20V
Switch Time (Ton, Toff) (Max)	300ns, 250ns
Charge Injection	30pC
Channel Capacitance (CS(off), CD(off))	16pF, 14pF
Current - Leakage (IS(off)) (Max)	5nA
Operating Temperature	-40°C ~ 85°C (TA)
Package / Case	14-SOIC (0.154", 3.90mm Width)
Product Status	Obsolete
RoHS Status	RoHS non-compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the HI9P0303-9 is determined by the following critical parameters:

Package / Case: 14-SOIC form factor (0.154", 3.90mm Width) — physical and electrical compatibility requirement
Number of Circuits: 2 circuits minimum
On-State Resistance (Max): 50Ohm nominal
Switch Time (Ton, Toff): 300ns and 250ns maximum
Operating Temperature Range: -40°C ~ 85°C (TA)
Mounting Type: Surface Mount

Substitute parts are grouped into two categories:

Direct Equivalent (Same Manufacturer): HI9P0303-9Z maintains identical electrical specifications and packaging, with the primary difference being product status (Active vs. Obsolete) and compliance certification (ROHS3 Compliant vs. RoHS non-compliant).

Functional Equivalents (Alternative Manufacturer): DG303BDY-E3 and DG303BDY-T1-E3 (Vishay Siliconix) provide equivalent switching performance and package compatibility. These parts differ in switch circuit topology (DPST - NO/NC vs. SPDT) and supply voltage specifications, but maintain compatible on-state resistance, switching times, and physical packaging.

Parameter Comparison

Parameter	HI9P0303-9	HI9P0303-9Z	DG303BDY-E3	DG303BDY-T1-E3
Manufacturer	Renesas Electronics	Renesas Electronics	Vishay Siliconix	Vishay Siliconix
Switch Circuit Type	SPDT	SPDT	DPST - NO/NC	DPST - NO/NC
Number of Circuits	2	2	2	2
Multiplexer/Demultiplexer Configuration	2:1	2:1	2:1	2:1
On-State Resistance (Max)	50Ohm	50Ohm	50Ohm	50Ohm
Voltage - Supply, Single (V+)	5V ~ 34V	5V ~ 34V	—	—
Voltage - Supply, Dual (V±)	±5V ~ 20V	±5V ~ 20V	±15V	±15V
Switch Time (Ton, Toff) (Max)	300ns, 250ns	300ns, 250ns	300ns, 250ns	300ns, 250ns
Charge Injection	30pC	30pC	8pC	8pC
Channel Capacitance (CS(off), CD(off))	16pF, 14pF	16pF, 14pF	14pF, 14pF	14pF, 14pF
Current - Leakage (IS(off)) (Max)	5nA	5nA	1nA	1nA
Operating Temperature	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)
Package / Case	14-SOIC	14-SOIC	14-SOIC	14-SOIC
Packaging Type	—	Tube	Tube	Tape & Reel (TR)
Product Status	Obsolete	Active	Active	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	3 (168 Hours)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

For Direct Replacement (Preferred): HI9P0303-9Z is the primary substitute. It maintains identical electrical specifications and 14-SOIC packaging as the obsolete HI9P0303-9. The part is Active status and ROHS3 Compliant, supporting modern supply chain and regulatory requirements. The increased Moisture Sensitivity Level (MSL 3 vs. MSL 1) requires adherence to 168-hour storage and handling protocols.

For Functional Equivalence: DG303BDY-E3 (Tube packaging) and DG303BDY-T1-E3 (Tape & Reel packaging) from Vishay Siliconix provide compatible switching performance and 14-SOIC packaging. Both parts are Active status and ROHS3 Compliant. These alternatives feature improved electrical characteristics (lower charge injection at 8pC, reduced leakage current at 1nA, and -74dB crosstalk specification). However, the switch circuit topology differs (DPST - NO/NC vs. SPDT), and supply voltage specifications are limited to ±15V dual supply without single supply voltage support. Circuit topology differences require functional validation in the target application.

Packaging Considerations: Select DG303BDY-E3 for Tube packaging or DG303BDY-T1-E3 for Tape & Reel packaging based on production volume and assembly requirements.

Frequently Asked Questions (FAQ)

Q: Can HI9P0303-9Z directly replace HI9P0303-9 without circuit modification?

A: Yes. HI9P0303-9Z maintains identical electrical specifications, on-state resistance (50Ohm), switching times (300ns/250ns), and 14-SOIC packaging. The primary differences are product status (Active vs. Obsolete) and RoHS compliance. Moisture sensitivity handling (MSL 3) must be observed during storage and assembly.

Q: What is the key difference between HI9P0303-9Z and the Vishay DG303 alternatives?

A: HI9P0303-9Z maintains SPDT switch circuit topology and supports both single supply (5V ~ 34V) and dual supply (±5V ~ 20V) operation. DG303BDY-E3 and DG303BDY-T1-E3 use DPST - NO/NC topology and support only dual supply (±15V). Both maintain 50Ohm on-state resistance and identical switching times. Circuit topology differences require functional validation.

Q: Are the Vishay DG303 parts electrically superior to the Renesas HI9P0303-9Z?

A: The Vishay DG303 parts feature lower charge injection (8pC vs. 30pC), reduced leakage current (1nA vs. 5nA), and specified crosstalk performance (-74dB @ 500kHz). These characteristics may provide performance advantages in specific applications, but circuit topology and supply voltage differences must be evaluated for compatibility.

Q: What packaging options are available for substitute parts?

A: HI9P0303-9Z is supplied in Tube packaging. DG303BDY-E3 is supplied in Tube packaging, and DG303BDY-T1-E3 is supplied in Tape & Reel (TR) format. All parts use 14-SOIC surface mount packaging with identical physical dimensions (0.154", 3.90mm Width).

Q: Are all substitute parts RoHS compliant?

A: HI9P0303-9Z, DG303BDY-E3, and DG303BDY-T1-E3 are all ROHS3 Compliant. The original HI9P0303-9 is RoHS non-compliant. Compliance certification supports modern regulatory and supply chain requirements.

Q: What is the Moisture Sensitivity Level (MSL) impact on handling?

A: HI9P0303-9Z has MSL 3 (168 Hours), requiring controlled storage and assembly within 168 hours of package opening. DG303BDY-E3 and DG303BDY-T1-E3 have MSL 1 (Unlimited), allowing standard handling without time-based constraints. MSL 3 parts require baking procedures if storage limits are exceeded.

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