HT08BB475KN Equivalent & Substitute Parts

Part Overview

The HT08BB475KN 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.

Key Parameters

Parameter	Value	Substitution Relevance
Capacitance	4.7 µF	Critical - must match exactly
Voltage Rating	50V	Critical - must match or exceed
Tolerance	±10%	Critical - determines circuit performance
Temperature Coefficient	X7R	Critical - defines capacitance stability
Mounting Type	Through Hole Radial	Critical - determines PCB compatibility
Lead Spacing	0.400" (10.16mm)	Critical - PCB footprint requirement
Operating Temperature Range	-55°C ~ 200°C	Application-dependent

Substitute Part Grouping Explanation

Substitution eligibility for HT08BB475KN is determined by strict equivalence across the following parameters:

Mandatory Matching Criteria:

Capacitance: 4.7 µF (no tolerance variation)
Voltage Rating: 50V minimum
Temperature Coefficient: X7R
Mounting Type: Through Hole Radial
Lead Spacing: 0.400" (10.16mm)
Tolerance: ±10%

Acceptable Variations:

Physical dimensions (length, width, height) may differ provided lead spacing remains 0.400"
Operating temperature range may be narrower than the original part
Lead style (straight vs. formed) is acceptable if lead spacing is maintained
Packaging format (bulk vs. tape/reel) does not affect electrical equivalence

The substitute C350C475K5R5TA meets all mandatory criteria and is therefore electrically and mechanically compatible with HT08BB475KN for direct substitution in circuit applications.

Parameter Comparison

Parameter	HT08BB475KN	C350C475K5R5TA	Match Status
Manufacturer	KEMET	KEMET	Identical
Capacitance	4.7 µF	4.7 µF	Identical
Tolerance	±10%	±10%	Identical
Voltage Rating	50V	50V	Identical
Temperature Coefficient	X7R	X7R	Identical
Mounting Type	Through Hole Radial	Through Hole Radial	Identical
Lead Spacing	0.400" (10.16mm)	0.400" (10.16mm)	Identical
Operating Temperature	-55°C ~ 200°C	-55°C ~ 125°C	Substitute range is narrower
Product Status	Obsolete	Active	Substitute is current
RoHS Status	Not specified	ROHS3 Compliant	Substitute has compliance documentation
Size/Dimension	0.500" L x 0.270" W (12.70mm x 6.85mm)	0.330" L x 0.200" W (8.38mm x 5.08mm)	Substitute is physically smaller
Height - Seated	0.500" (12.70mm)	0.400" (10.16mm)	Substitute is lower profile

Engineering Selection Recommendations

Primary Substitute: C350C475K5R5TA

The C350C475K5R5TA is the direct electrical equivalent of HT08BB475KN and is recommended for substitution based on the following factors:

Electrical Equivalence: Identical capacitance (4.7 µF), voltage rating (50V), tolerance (±10%), and temperature coefficient (X7R)
Mechanical Compatibility: Lead spacing of 0.400" (10.16mm) ensures PCB footprint compatibility; smaller physical dimensions provide design flexibility
Product Status: Active manufacturing status ensures long-term availability and supply chain reliability
Compliance: ROHS3 compliant with REACH unaffected status provides regulatory documentation
Temperature Consideration: Operating range of -55°C to 125°C is suitable for general-purpose applications; applications requiring operation above 125°C require thermal analysis

Installation Notes: The smaller physical profile of C350C475K5R5TA may require PCB layout verification to confirm clearance with adjacent components. Lead spacing equivalence guarantees hole-to-hole compatibility.

Frequently Asked Questions (FAQ)

Q: Can C350C475K5R5TA be used as a direct replacement for HT08BB475KN?

A: Yes. Both parts have identical electrical specifications (4.7 µF, 50V, ±10%, X7R) and matching lead spacing (0.400"). The substitute is electrically and mechanically compatible for direct PCB substitution.

Q: What is the significance of the narrower operating temperature range in C350C475K5R5TA?

A: The substitute operates from -55°C to 125°C versus the original part's -55°C to 200°C range. For applications operating below 125°C, this difference is not relevant. Applications requiring sustained operation above 125°C must retain the original HT08BB475KN specification or identify alternative parts rated to 200°C.

Q: Will the smaller physical dimensions of C350C475K5R5TA affect circuit performance?

A: No. Physical size does not affect electrical performance. The smaller footprint (0.330" L x 0.200" W versus 0.500" L x 0.270" W) may provide PCB layout advantages. Verify clearance with adjacent components during board layout.

Q: Are there compliance differences between the two parts?

A: C350C475K5R5TA includes ROHS3 compliance documentation and REACH unaffected status. The original HT08BB475KN does not specify these certifications. Both parts carry EAR99 ECCN and 8532.24.0060 HTSUS classification.

Q: What does "formed leads" versus "straight leads" mean for substitution?

A: Lead style refers to whether leads are pre-bent (formed) or straight. Both styles are compatible with standard through-hole PCB assembly when lead spacing is identical. Formed leads may simplify manual insertion; straight leads provide flexibility for custom lead bending if required.

Q: Is inventory availability a factor in substitution decisions?

A: Inventory status reflects current stock levels and does not affect technical substitution eligibility. C350C475K5R5TA (961 Pcs in stock) has greater availability than HT08BB475KN (865 Pcs), supporting long-term supply chain planning.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message