DIP05-1C90-51F Reed Relay SPDT 250mA 5V Equivalent & Substitute Parts

Part Overview

The DIP05-1C90-51F is an active-status reed relay manufactured by Standex-Meder Electronics, designed for switching applications requiring SPDT (Single Pole Double Throw) contact configuration at 250mA capacity with 5VDC coil voltage. This component is a through-hole mounted relay with integrated diode protection, suitable for PCB integration in control and signal switching circuits. Alternative equivalent parts may be required due to inventory availability, regional sourcing constraints, or specific application requirements within the defined electrical and mechanical parameter envelope.

Substiute Parts

DIP05-1C90-51F

Standex-Meder ElectronicsIn Stock: 872DIP05-1C90-51F Datasheet

Current PartRFQ

HE721C0530

Littelfuse Inc.In Stock: 6856HE721C0530 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Equivalent substitution for the DIP05-1C90-51F is determined by strict alignment of the following critical parameters:

Primary Matching Criteria (Non-Negotiable):

• Coil Voltage: 5VDC
• Contact Form: SPDT (1 Form C)
• Contact Rating (Current): 250 mA minimum
• Mounting Type: Through Hole
• Termination Style: PC Pin
• Coil Type: Non Latching
• Coil Resistance: 200 Ohms

Secondary Compatibility Parameters:

• Switching Voltage: Must support 175VDC minimum
• Coil Current: 25 mA nominal
• Operating Temperature Range: Must encompass application requirements
• RoHS Compliance: ROHS3 Compliant

The substitute part HE721C0530 (Littelfuse Inc., HE700 series) satisfies all primary matching criteria and maintains compatibility within the defined electrical and mechanical parameter space.

Parameter Comparison

Engineering Selection Recommendations

Substitution Validity:

The HE721C0530 (Littelfuse Inc.) is a valid electrical and mechanical equivalent for the DIP05-1C90-51F based on matching primary selection criteria: identical coil voltage (5VDC), contact form (SPDT), current rating (250mA), mounting type (through-hole), termination style (PC pin), and coil resistance (200 Ohms).

Compliance Status:

Both components maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for equivalent substitution in regulated applications.

Operational Differences:

The HE721C0530 exhibits longer operate and release times (3 ms each versus 0.7 ms and 1.5 ms respectively) and operates across a wider temperature range (-40°C to 85°C versus -20°C to 70°C). These differences must be evaluated against specific application timing and environmental requirements. The HE721C0530 includes electrostatic shielding as an additional feature not present in the DIP05-1C90-51F.

Packaging Consideration:

The HE721C0530 is supplied in tube packaging, whereas the DIP05-1C90-51F packaging format is not specified in the provided data. Verify packaging compatibility with assembly and handling requirements.

Frequently Asked Questions (FAQ)

Q: Can HE721C0530 directly replace DIP05-1C90-51F in existing PCB designs?

A: Yes, for electrical and mechanical compatibility. Both components share identical coil voltage (5VDC), contact configuration (SPDT), current rating (250mA), through-hole mounting, and PC pin termination. PCB layout compatibility depends on physical pin spacing and footprint alignment, which must be verified against component datasheets.

Q: What are the timing differences between these two relays?

A: The DIP05-1C90-51F operates in 0.7 ms and releases in 1.5 ms. The HE721C0530 operates and releases in 3 ms each. Applications requiring fast switching response should account for this 2.3 ms difference in operate time and 1.5 ms difference in release time.

Q: Are both relays suitable for the same temperature environments?

A: The DIP05-1C90-51F operates from -20°C to 70°C. The HE721C0530 operates from -40°C to 85°C. The HE721C0530 covers a wider temperature envelope and is suitable for applications requiring extended low-temperature or high-temperature operation beyond the DIP05-1C90-51F range.

Q: What is the significance of the electrostatic shield feature in HE721C0530?

A: The HE721C0530 includes electrostatic shielding as an additional feature. This provides enhanced noise immunity in electromagnetically noisy environments. The DIP05-1C90-51F does not specify this feature. Evaluate whether this additional shielding is beneficial or unnecessary for the target application.

Q: Do both relays have identical coil resistance?

A: Yes. Both the DIP05-1C90-51F and HE721C0530 have 200 Ohm coil resistance, ensuring identical electrical load on driver circuits and compatibility with existing control circuit designs.

Q: What is the difference in must-operate and must-release voltages?

A: The DIP05-1C90-51F requires 3.5 VDC to operate and 0.75 VDC to release. The HE721C0530 requires 3.75 VDC to operate and 0.5 VDC to release. Both operate reliably at the nominal 5VDC supply voltage. The HE721C0530 releases at a lower voltage threshold, which may affect circuit behavior in low-voltage dropout scenarios.

Q: Are there inventory or sourcing advantages to using HE721C0530?

A: The provided data indicates 6829 pieces of HE721C0530 in stock versus 856 pieces of DIP05-1C90-51F. Availability may influence substitution decisions for high-volume production or urgent procurement requirements.

Q: What compliance certifications apply to both relays?

A: Both components are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component use in regulated markets and applications.