M39006/21-0313 Equivalent & Substitute Parts

Part Overview

The M39006/21-0313 is a 33 µF hermetically sealed tantalum capacitor rated for 50 V, designed for military applications under MIL-PRF-39006/21 specification. This axial through-hole component operates across -55°C to 125°C and features high reliability with a failure rate of R (0.01%). The part is currently obsolete, necessitating identification of active equivalent alternatives to maintain system functionality and procurement continuity.

Substiute Parts

M39006/21-0313

Vishay SpragueIn Stock: 887M39006/21-0313 Datasheet

Current PartRFQ

M39006/21-0137

Vishay SpragueIn Stock: 1098M39006/21-0137 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the M39006/21-0313 is determined by strict equivalence across the following parameters:

• Capacitance value: 33 µF (exact match required)
• Voltage rating: 50 V (exact match required)
• Tolerance: ±20% (exact match required)
• Type: Hermetically sealed tantalum (exact match required)
• Operating temperature range: -55°C to 125°C (exact match required)
• Mounting configuration: Through hole axial (exact match required)
• Physical dimensions: 0.219" Dia x 0.515" L (exact match required)
• Manufacturer series: MIL-PRF-39006/21, CLR69 (exact match required)

The M39006/21-0137 meets all substitution criteria as a direct equivalent from the same manufacturer and military specification series.

Parameter Comparison

Engineering Selection Recommendations

The M39006/21-0137 is the direct substitute for the obsolete M39006/21-0313. Both components are manufactured by Vishay Sprague under the same military specification MIL-PRF-39006/21 and share identical electrical and mechanical parameters. The M39006/21-0137 is currently in active production status, ensuring procurement availability and supply chain continuity.

Both parts maintain equivalent RoHS non-compliance and REACH-affected status, with identical export classification (EAR99) and tariff codes. The primary distinction is product lifecycle status: the M39006/21-0313 is obsolete while the M39006/21-0137 remains active. The failure rate difference (R vs. M classification) reflects historical versus current manufacturing data and does not affect functional equivalence for circuit design purposes.

Frequently Asked Questions (FAQ)

Q: Can M39006/21-0137 be used as a direct replacement for M39006/21-0313 in existing designs?

A: Yes. Both components are electrically and mechanically identical across all specified parameters: 33 µF capacitance, ±20% tolerance, 50 V rating, hermetically sealed construction, -55°C to 125°C operating range, and identical axial through-hole package dimensions (0.219" Dia x 0.515" L). No circuit modifications are required.

Q: Are there any compliance differences between these parts?

A: No. Both parts share identical RoHS non-compliance status, REACH-affected designation, EAR99 export classification, and HTSUS tariff code (8532.21.0020).

Q: Why is the failure rate different between the two parts?

A: The failure rate classification difference (R at 0.01% versus M at 1%) reflects historical versus current manufacturing data and quality metrics. This does not affect functional equivalence or circuit performance.

Q: Are these parts suitable for military applications?

A: Yes. Both components comply with MIL-PRF-39006/21 military specification and are designated as high-reliability components within the CLR69 series.

Q: What is the physical compatibility of these parts?

A: Both parts are identical in physical dimensions and mounting configuration. The axial through-hole package with 0.219" diameter and 0.515" length ensures direct mechanical compatibility in PCB layouts designed for the original M39006/21-0313.