HT08BW475KN Equivalent & Substitute Parts

Part Overview

The HT08BW475KN is a 4.7 µF ±10% 50V ceramic capacitor with X7R temperature coefficient manufactured by KEMET. This radial through-hole component is designed for general-purpose applications requiring high-temperature operation across -55°C to 200°C. The part is currently obsolete, necessitating identification of functionally equivalent alternatives that maintain electrical and mechanical compatibility within specified parameters.

Substiute Parts

HT08BW475KN

KEMETIn Stock: 1054HT08BW475KN Datasheet

Current PartRFQ

C350C475K5R5TA

KEMETIn Stock: 1064C350C475K5R5TA Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the HT08BW475KN is determined by strict equivalence across the following parameters:

Critical Electrical Parameters (Must Match):

• Capacitance: 4.7 µF
• Tolerance: ±10%
• Voltage Rating: 50V
• Temperature Coefficient: X7R

Critical Mechanical Parameters (Must Match):

• Mounting Type: Through Hole
• Package Type: Radial
• Lead Spacing: 0.400" (10.16mm)

Acceptable Variations:

• Operating temperature range may differ provided minimum -55°C and maximum ≥125°C are maintained
• Physical dimensions (length, width, height) may vary within PCB layout constraints
• Lead style (straight vs. formed) is acceptable provided lead spacing remains 0.400"
• Product status transition from obsolete to active is acceptable

The substitute part C350C475K5R5TA meets all critical electrical and mechanical parameters and is therefore a valid equivalent.

Parameter Comparison

Engineering Selection Recommendations

The C350C475K5R5TA is the qualified substitute for HT08BW475KN based on the following criteria:

Electrical Equivalence: Both parts share identical capacitance (4.7 µF), tolerance (±10%), voltage rating (50V), and temperature coefficient (X7R), ensuring functional interchangeability in circuit operation.

Mechanical Compatibility: Lead spacing of 0.400" (10.16mm) is identical, permitting direct PCB footprint compatibility. The C350C475K5R5TA features a smaller physical envelope (0.330" x 0.200" vs. 0.500" x 0.270"), which is advantageous for space-constrained layouts and does not compromise electrical performance.

Product Status: The transition from obsolete (HT08BW475KN) to active (C350C475K5R5TA) ensures long-term supply availability and manufacturing consistency.

Compliance: The C350C475K5R5TA carries ROHS3 compliance and REACH unaffected status, meeting modern regulatory requirements. Both parts share identical ECCN (EAR99) and HTSUS (8532.24.0060) classifications.

Temperature Consideration: The HT08BW475KN operates to 200°C while the C350C475K5R5TA operates to 125°C. Applications requiring sustained operation above 125°C must retain the original part or identify alternatives with extended temperature ratings.

Frequently Asked Questions (FAQ)

Q: Can C350C475K5R5TA replace HT08BW475KN in all applications?

A: Yes, provided the application does not require sustained operation above 125°C. The HT08BW475KN supports -55°C to 200°C operation, while the C350C475K5R5TA supports -55°C to 125°C. For applications within the -55°C to 125°C range, the substitute is fully equivalent.

Q: Are the physical dimensions compatible with existing PCB layouts?

A: The C350C475K5R5TA has a smaller footprint (0.330" x 0.200" vs. 0.500" x 0.270") but maintains identical lead spacing (0.400"). This allows direct PCB mounting without layout modification. The reduced height (0.400" vs. 0.500") provides additional clearance benefits.

Q: What is the significance of "Formed Leads" vs. "Straight" leads?

A: Both lead styles accommodate standard through-hole PCB assembly. Formed leads on the C350C475K5R5TA are pre-bent for insertion, while straight leads on the HT08BW475KN require manual bending. Both achieve the same 0.400" lead spacing and electrical connection.

Q: Does the C350C475K5R5TA meet current regulatory standards?

A: Yes. The C350C475K5R5TA is ROHS3 compliant and REACH unaffected, meeting current environmental and safety regulations. The obsolete HT08BW475KN does not carry these certifications.

Q: Are there inventory considerations between these parts?

A: The HT08BW475KN has 1034 pcs in stock (obsolete status), while the C350C475K5R5TA has 961 pcs in stock (active status). The active status of C350C475K5R5TA ensures continued availability for future procurement.

Q: What electrical parameters must remain identical for substitution?

A: Capacitance (4.7 µF), tolerance (±10%), voltage rating (50V), and temperature coefficient (X7R) must remain identical. These parameters define the component's functional role in the circuit.