VC120618A400RP Equivalent & Substitute Parts

Part Overview

The VC120618A400RP is a TransGuard® series transient voltage suppressor (TVS) varistor manufactured by KYOCERA AVX. This surface mount component is designed for transient voltage suppression in electronic circuits, featuring a 25.5 V nominal varistor voltage and 30 A surge current rating in a compact 1206 (3216 Metric) package. The part is currently in active production status with full RoHS3 compliance and unlimited moisture sensitivity level (MSL 1). Equivalent substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity for applications requiring identical electrical and mechanical specifications.

Substiute Parts

VC120618A400RP

KYOCERA AVXIn Stock: 1085VC120618A400RP Datasheet

Current PartRFQ

VC120618A400DP

KYOCERA AVXIn Stock: 6530VC120618A400DP Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the VC120618A400RP are identified based on strict electrical and mechanical parameter matching within the TransGuard® varistor product family. The substitution criteria are defined by the following key parameters:

Electrical Parameters (Must Match):

• Varistor voltage range: 22.95 V (Min) to 28.05 V (Max), with 25.5 V typical
• Surge current rating: 30 A
• Maximum DC voltage: 18 V
• Maximum AC voltage: 13 V
• Energy rating: 0.1 J
• Capacitance: 350 pF @ 1 kHz

Mechanical Parameters (Must Match):

• Package type: 1206 (3216 Metric)
• Mounting configuration: Surface Mount, MLCV
• Number of circuits: 1

Compliance & Status (Must Match):

• Product status: Active
• RoHS3 compliance
• Moisture sensitivity level: MSL 1 (Unlimited)

Parts meeting all these criteria are classified as direct parametric equivalents and may be substituted without circuit redesign or performance impact.

Parameter Comparison

Engineering Selection Recommendations

The VC120618A400DP is a direct parametric equivalent to the VC120618A400RP. Both parts are manufactured by KYOCERA AVX within the TransGuard® series and share identical electrical specifications, mechanical dimensions, and compliance certifications.

Selection Basis:

Both parts maintain active production status, ensuring long-term availability and supply chain stability. Both achieve full RoHS3 compliance and carry MSL 1 (Unlimited) moisture sensitivity rating, indicating no special storage or handling requirements beyond standard component practices.

The electrical performance is identical across all specified parameters: varistor voltage range (22.95 V to 28.05 V), surge current capacity (30 A), maximum voltage ratings (18 V DC / 13 V AC), energy absorption (0.1 J), and capacitance characteristics (350 pF @ 1 kHz).

The mechanical compatibility is complete: both components use the 1206 (3216 Metric) surface mount package with MLCV mounting configuration, ensuring PCB footprint and assembly process compatibility without modification.

Selection between these parts may be based on inventory availability, lead time, or procurement cost, as no technical differentiation exists between them.

Frequently Asked Questions (FAQ)

Q: Can VC120618A400DP be used as a direct replacement for VC120618A400RP on existing PCBs?

A: Yes. Both parts are identical in electrical performance, mechanical dimensions, and mounting configuration. No PCB redesign, component repositioning, or circuit modification is required. The parts are pin-compatible and functionally interchangeable.

Q: Are there any differences in RoHS compliance or environmental certifications between these parts?

A: No. Both VC120618A400RP and VC120618A400DP carry identical RoHS3 compliance status and REACH unaffected designation. Both maintain MSL 1 (Unlimited) moisture sensitivity level, requiring no special storage conditions.

Q: What is the difference between the RP and DP packaging designations?

A: Both parts are supplied in Tape & Reel (TR) packaging for automated assembly. The RP and DP designations indicate different packaging configurations or reel specifications from KYOCERA AVX, but the component itself and its electrical/mechanical specifications remain identical.

Q: Can these varistors be used in circuits rated for different voltage levels?

A: No. These components are specified for maximum DC voltage of 18 V and maximum AC voltage of 13 V. Circuit design must comply with these voltage ratings. The varistor voltage range (22.95 V to 28.05 V typical 25.5 V) defines the suppression threshold and must match the transient voltage protection requirements of the application.

Q: What is the surge current rating used for?

A: The 30 A surge current rating specifies the maximum transient current the varistor can safely absorb during a single surge event. Circuit protection design must ensure that transient currents do not exceed this specification.

Q: Are these parts suitable for high-frequency applications?

A: The capacitance specification of 350 pF @ 1 kHz indicates the component's frequency-dependent behavior. Applications requiring frequency response analysis should reference the manufacturer's detailed frequency response curves and impedance characteristics.

Q: What is the operating temperature range for these components?

A: Both parts operate across -55°C to 125°C ambient temperature range. Circuit design must account for varistor voltage and performance variation across this temperature range, as specified in the manufacturer's detailed technical documentation.