HT35V102M13X21 Equivalent & Substitute Parts

Part Overview

The HT35V102M13X21 is a 1000 µF, 35 V aluminum electrolytic capacitor manufactured by Meritek in radial, through-hole configuration. This capacitor is rated for 2000 hours at 105°C and operates across the temperature range of -40°C to 105°C. The part is Active in product status and RoHS3 compliant, making it suitable for general-purpose applications requiring stable capacitance in standard industrial and consumer electronics.

Substitute parts are identified when equivalent electrical and mechanical parameters are maintained within the allowed specifications for aluminum electrolytic capacitors in this category. Substitution becomes necessary due to inventory availability, lead time constraints, or manufacturing discontinuation of the primary part number.

Substiute Parts

HT35V102M13X21

MeritekIn Stock: 977HT35V102M13X21 Datasheet

Current PartRFQ

SEK102M035ST

Cornell Dubilier Electronics (CDE)In Stock: 1495SEK102M035ST Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the HT35V102M13X21 is determined by strict equivalence in the following electrical and mechanical parameters:

Critical Matching Parameters:

• Capacitance: 1000 µF (exact match required)
• Voltage Rating: 35 V (exact match required)
• Tolerance: ±20% (exact match required)
• Lifetime: 2000 Hrs @ 105°C (exact match required)
• Lead Spacing: 0.197" (5.00mm) (exact match required)
• Diameter: 0.512" (13.00mm) (exact match required)
• Mounting Type: Through Hole (exact match required)
• Package Type: Radial, Can (exact match required)

Acceptable Variation Parameters:

• Height - Seated (Max): Variation permitted within PCB layout constraints
• Operating Temperature Range: Substitute may exceed the minimum and maximum bounds of the primary part
• ESR (Equivalent Series Resistance): When specified, substitute ESR must not exceed primary part specifications

The substitute part SEK102M035ST meets all critical matching parameters and is therefore electrically and mechanically interchangeable with the HT35V102M13X21 in standard through-hole PCB applications.

Parameter Comparison

Engineering Selection Recommendations

Both the HT35V102M13X21 and SEK102M035ST are Active products with ROHS3 compliance and REACH Unaffected status, confirming current manufacturing availability and regulatory alignment for industrial and commercial applications.

The SEK102M035ST substitute part demonstrates full electrical equivalence across all critical parameters: capacitance, voltage rating, tolerance, and thermal lifetime. The substitute's operating temperature range of -55°C to 105°C extends below the primary part's -40°C minimum, providing enhanced low-temperature performance without compromise to upper temperature limits.

The height difference of 0.059" (1.50mm) between the primary part (0.886") and substitute (0.827") is a mechanical variation that must be evaluated against specific PCB layout constraints. The substitute's reduced height may provide advantages in space-constrained designs or present no impact in applications with adequate clearance.

The substitute part's specified ESR of 190 mOhm provides quantified performance data not available for the primary part, enabling more precise circuit analysis when ESR characteristics are critical to application performance.

Selection between these parts should be based on inventory availability, lead time requirements, and PCB mechanical constraints rather than electrical performance, as both parts are functionally equivalent for general-purpose capacitance applications.

Frequently Asked Questions (FAQ)

Q: Can SEK102M035ST be used as a direct replacement for HT35V102M13X21 on existing PCBs?

A: Yes, the SEK102M035ST is electrically and mechanically interchangeable for standard through-hole PCB applications. The substitute part matches all critical electrical parameters and maintains the same lead spacing and diameter. The 0.059" height reduction must be verified against PCB layout clearance requirements, but this typically presents no compatibility issues in standard designs.

Q: What is the significance of the extended operating temperature range in the substitute part?

A: The SEK102M035ST operates from -55°C to 105°C, compared to the primary part's -40°C to 105°C range. This extended lower temperature limit provides additional design margin for applications exposed to cold environments or cryogenic storage conditions. Both parts maintain identical performance at the upper 105°C limit.

Q: Why is ESR specified for the substitute but not the primary part?

A: ESR (Equivalent Series Resistance) is a performance characteristic that affects ripple current handling and transient response. The substitute manufacturer provides this specification (190 mOhm), while the primary manufacturer does not. When ESR is critical to circuit design, the substitute's specified value enables precise circuit analysis. For general-purpose applications, both parts perform equivalently.

Q: Are there any compliance or regulatory differences between these parts?

A: No. Both parts are ROHS3 compliant, REACH Unaffected, and carry identical ECCN (EAR99) and HTSUS (8532.22.0020) classifications. Both are classified as Moisture Sensitivity Level 1 (Unlimited), indicating no moisture sensitivity constraints during storage or handling.

Q: What factors should determine the choice between these two parts?

A: Selection should be based on: (1) inventory availability and lead time from respective manufacturers or distributors, (2) PCB mechanical clearance verification for the 0.059" height difference, and (3) circuit requirements for ESR specification. Electrical performance is equivalent for both parts in general-purpose applications.