VC120638N770TP Equivalent & Substitute Parts

Part Overview

The VC120638N770TP is a 47 V, 200 A Transient Voltage Suppressor (TVS) varistor manufactured by KYOCERA AVX under the TransGuard® series. This surface mount component is designed for transient overvoltage protection in electronic circuits. The part is classified as Active with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Substitute parts are identified when electrical performance parameters, mechanical packaging, and regulatory compliance remain equivalent across the specified operating range.

Substiute Parts

VC120638N770TP

KYOCERA AVXIn Stock: 1185VC120638N770TP Datasheet

Current PartRFQ

VC120638N770DP

KYOCERA AVXIn Stock: 2587VC120638N770DP Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the VC120638N770TP is determined by strict equivalence across the following critical parameters:

Electrical Performance Criteria:

• Varistor voltage rating: 47 V (nominal), with tolerance range 42.3 V to 51.7 V
• Surge current capacity: 200 A minimum
• Maximum AC voltage: 30 V
• Maximum DC voltage: 38 V
• Energy absorption: 1.1 J
• Capacitance: 400 pF @ 1 kHz

Mechanical & Packaging Criteria:

• Package type: 1206 (3216 Metric) surface mount
• Mounting technology: MLCV (Multilayer Ceramic Varistor)
• Number of circuits: Single circuit (1)

Regulatory & Compliance Criteria:

• RoHS3 compliance required
• Moisture Sensitivity Level: MSL 1 (Unlimited)
• REACH status: Unaffected
• Product status: Active

Substitute parts must match all parameters listed above. Deviations in any electrical, mechanical, or compliance parameter disqualify a part from substitution eligibility.

Parameter Comparison

Engineering Selection Recommendations

The VC120638N770DP is a direct parametric equivalent to the VC120638N770TP. Both parts are manufactured by KYOCERA AVX within the TransGuard® series and share identical electrical specifications, mechanical packaging, and regulatory compliance certifications.

Selection Basis:

Both parts maintain Active product status, ensuring long-term availability and manufacturing support. RoHS3 compliance and REACH unaffected status confirm regulatory alignment for applications requiring environmental compliance. MSL 1 rating indicates unlimited shelf life without moisture bake-out requirements.

The identical surge current capacity (200 A), varistor voltage tolerance band (42.3 V to 51.7 V), and energy absorption rating (1.1 J) ensure functional interchangeability in transient overvoltage protection circuits. The 1206 (3216 Metric) surface mount package and MLCV mounting technology are consistent across both parts, permitting direct PCB layout compatibility without design modification.

Inventory availability differs between the two parts. Selection between VC120638N770TP and VC120638N770DP should be based on supply chain requirements and delivery schedules, as electrical and mechanical performance are equivalent.

Frequently Asked Questions (FAQ)

Q: Can VC120638N770DP be used as a direct replacement for VC120638N770TP?

A: Yes. Both parts are parametrically equivalent across all electrical performance specifications, mechanical packaging, and regulatory compliance criteria. Direct substitution is permissible without circuit redesign or PCB layout modification.

Q: What is the difference between VC120638N770TP and VC120638N770DP?

A: The parts differ only in packaging format. VC120638N770TP is supplied in Tape & Reel (TR) format, while VC120638N770DP is also supplied in Tape & Reel (TR) format. Both use identical MLCV 1206 (3216 Metric) surface mount packages. Electrical and mechanical specifications are identical.

Q: Are both parts RoHS3 compliant?

A: Yes. Both VC120638N770TP and VC120638N770DP carry RoHS3 compliance certification and REACH unaffected status, meeting environmental regulatory requirements for EU and global markets.

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

A: Both parts operate across -55°C to 125°C ambient temperature range (TA). This range applies to all electrical performance parameters and surge current ratings.

Q: Can these 47 V varistors be used in circuits with higher voltage transients?

A: No. The maximum DC voltage rating is 38 V and maximum AC voltage rating is 30 V. Application of voltages exceeding these limits will degrade component performance and void the energy absorption specification.

Q: What is the capacitance value of these varistors?

A: Both parts exhibit 400 pF capacitance measured at 1 kHz. This value is relevant for high-frequency circuit analysis and EMI filtering applications.

Q: Is moisture bake-out required before soldering?

A: No. Both parts carry MSL 1 (Unlimited) rating, indicating unlimited shelf life without moisture sensitivity concerns. Standard handling procedures apply.

Q: What surge current capacity do these varistors provide?

A: Both parts are rated for 200 A surge current with 1.1 J energy absorption capacity. This rating applies to single transient events within the specified energy envelope.