MIL-PRF-83421 / MIL-C-83421 CRH Film Capacitors
Electronic Expediters inventories and sources capacitors associated with the MIL-PRF-83421 military capacitor family, historically referenced under MIL-C-83421 terminology. These components may be identified by the current MIL-PRF-83421 specification, legacy MIL-C-83421 references, M83421 military part numbers, or CRH government style designations.
MIL-PRF-83421 and CRH Capacitor Identification
MIL-PRF-83421 covers established-reliability, fixed metallized plastic-film dielectric capacitors that are hermetically sealed in metal or ceramic cases. Individual performance specification sheets define particular CRH styles, voltage ranges, physical configurations and Part or Identifying Numbers.
| Current specification | MIL-PRF-83421 |
|---|---|
| Legacy specification terminology | MIL-C-83421 |
| Military PIN family | M83421 |
| Government style family | CRH |
| Component type | Fixed metallized plastic-film dielectric capacitors |
| Construction | Hermetically sealed in metal or ceramic cases |
| Reliability classification | Established reliability |
CRH Styles Within MIL-PRF-83421
MIL-PRF-83421 specification sheets define multiple CRH capacitor styles. Buyers should use the complete CRH style or M83421 Part or Identifying Number when matching an exact procurement requirement.
Axial-lead, hermetically sealed styles defined under MIL-PRF-83421/1 and preferred over the older CRH06 through CRH00 styles for new design.
Legacy styles retained in MIL-PRF-83421/1 but identified as inactive for new design.
Insulated established-reliability styles defined under MIL-PRF-83421/2.
Established-reliability metallized plastic-film capacitor styles defined under MIL-PRF-83421/6.
Search M83421 and CRH Capacitors by Exact Part Number
MIL-PRF-83421 components may be specified by an M83421 slash-sheet PIN or by a CRH style designation. For example, M83421/01 identifies components defined by specification sheet 1, with additional digits and letters identifying the specific style, dash number and failure-rate level.
Expediters maintains individual inventory records for matching military capacitor part numbers, including manufacturer, alternate part number, date-code information and quantity where those fields are available in the source inventory record.
When a complete M83421 or CRH part number appears on a bill of material, drawing or sourcing request, use that exact number in the Expediters site search for the most precise result.
MIL-PRF-83421 / CRH Inventory
1,370 matching salable inventory records
| Part Number | Brand | Military / Alt Reference | EE / SE # | Date Code | Lot # | Qty Available | Part Details |
|---|---|---|---|---|---|---|---|
| CRH03A1QB473GP | WEST | M83421/013142P | 379890 | 8411 | 15786 | 366 | View Part |
| CRH03A1QB473GP | KEM | M83421/01-3142P | 380210 | 8437 | 15768 | 90 | View Part |
| CRH03A1QB473GS | AC | M83421/01-3142S | 380348 | 8951 | 15768 | 914 | View Part |
| CRH03A1QB473GS | KEM | M83421/01-3142S | 384022 | 9001 | 15768 | 80 | View Part |
| CRH03A1QB474GP | WEST | M83421/013226P | 380349 | 8345 | 15768 | 223 | View Part |
| CRH03A1QB474GP | WESTCAP | — | 394890 | — | 15786 | 1 | View Part |
| CRH03A1QB474GS | — | M83421/013226S | 379223 | 8938 | 15802 | 2,000 | View Part |
| CRH03A1QB474GS | SPRAGUE | — | 635781 | — | 21480 | 14 | View Part |
| CRH03A1QB502GP | CRC | M83421/01-3084P | 263445 | — | 12805 | 50 | View Part |
| CRH03A1QB503GP | WESTC | M83421013148P | 263475 | — | 12805 | 30 | View Part |
| CRH03A1QB503GP | KEM | M83421/01-3148P | 379854 | 8429 | 15786 | 500 | View Part |
| CRH03A1QB503GP | WEST | M83421/013148P | 380216 | 8402 | 15786 | 53 | View Part |
| CRH03A1QB503GS | KEM | M83421/01-3148S | 384023 | 8929 | 15768 | 52 | View Part |
| CRH03A1QB503GS | WEST | M83421/013148S | 384027 | 8943 | 15768 | 24 | View Part |
| CRH03A1QB504FS | JAN | M83421/01-3231S | 272896 | 8444 | 13299 | 6 | View Part |
| CRH03A1QB504FS | SPR | M83421/01-3231S | 276163 | 8514 | 13299 | 7 | View Part |
| CRH03A1QB504GP | WEST | M83421/013232P | 379883 | 8337 | 15786 | 55 | View Part |
| CRH03A1QB504GP | WEST | M83421/013232P | 380347 | 8348 | 15768 | 318 | View Part |
| CRH03A1QB505JR | WESTCAP | — | 762508 | — | 24025 | 3 | View Part |
| CRH03A1QB505JR | WEST | M83421/013323R | 615219 | 8334 | 21748 | 4 | View Part |
| CRH03A1QB562GP | WESTC | M83421013070P | 263443 | — | 12805 | 50 | View Part |
| CRH03A1QB563GP | KEM | M83421/01-3154P | 383713 | 8443 | 15786 | 39 | View Part |
| CRH03A1QB563KS | CR | M83421/01-3156S | 421082 | — | 13942 | 65 | View Part |
| CRH03A1QB564KS | CRC | M83421/01-3240S | 560990 | 9306 | 19997 | 9 | View Part |
| CRH03A1QB564KS | CRC | M83421/01-3240S | 561482 | 9206 | 19997 | 6 | View Part |
Legacy and Hard-to-Find M83421 / CRH Capacitors
MIL-PRF-83421 capacitors remain relevant in long-life military, aerospace and industrial systems. Expediters supports sourcing for current inventory as well as legacy, obsolete and difficult-to-locate M83421 and CRH capacitor requirements.
Understanding M83421 Part Numbers and CRH Styles
The MIL-PRF-83421 general specification defines the overall capacitor requirements. Individual specification sheets define particular CRH styles, while the complete M83421 Part or Identifying Number identifies the specific configuration required for procurement.
For example, MIL-PRF-83421/1 uses M83421/01 PINs and includes CRH01 through CRH09 and CRH00 styles. MIL-PRF-83421/2 covers CRH11, CRH12 and CRH13, while MIL-PRF-83421/6 covers CRH31 through CRH35.
A specification-family or style match alone should not be treated as proof that two individual capacitor part numbers are interchangeable. The complete PIN, applicable specification sheet, electrical characteristics, physical configuration and reliability requirements should be verified before substitution.
CRH Versus CHR in Historical Manufacturer Records
The Department of Defense government style designation for MIL-PRF-83421 is CRH. Some historical manufacturer or inventory records may contain similar-looking manufacturer designations such as CHR. Those manufacturer designations should not automatically be interpreted as the official military style. The complete M83421 PIN and applicable specification sheet provide the strongest identification for procurement.
Related MIL-SPEC Capacitor Families
Explore related military capacitor inventory families: MIL-PRF-39014 / MIL-C-39014 CKR Capacitors, MIL-PRF-39003 / MIL-C-39003 CSR Tantalum Capacitors, MIL-PRF-39006 / MIL-C-39006 CLR Tantalum Capacitors, MIL-PRF-55681 / MIL-C-55681 CDR Ceramic Chip Capacitors, MIL-PRF-39001 / MIL-C-39001 CMR Mica Capacitors.
Additional related families: MIL-PRF-23269 / MIL-C-23269 CYR Glass Capacitors, MIL-PRF-39018 / MIL-C-39018 CU & CUR Capacitors, MIL-PRF-39022 / MIL-C-39022 CHR Film Capacitors, MIL-PRF-15733 / MIL-C-15733 RFI Filters & Capacitors, MIL-C-18312 CH Legacy Capacitors, MIL-PRF-62 / MIL-C-62 CE Capacitors.
MIL-PRF-83421 / CRH Questions
What type of capacitor is covered by MIL-PRF-83421?
MIL-PRF-83421 covers established-reliability, fixed metallized plastic-film dielectric capacitors that are hermetically sealed in metal or ceramic cases.
What is a CRH capacitor?
CRH is the government military style family used for capacitor configurations defined under MIL-PRF-83421. Examples include CRH01, CRH05, CRH11, CRH13 and CRH31 through CRH35.
What does M83421 identify?
M83421 identifies the military Part or Identifying Number family associated with MIL-PRF-83421. The complete PIN includes the applicable specification-sheet number and additional coded information identifying the capacitor configuration.
Are CRH06 through CRH00 current designs?
MIL-PRF-83421/1 retains CRH06 through CRH00, but identifies those styles as inactive for new design and directs new designs toward CRH01 through CRH05.
Why might an inventory record contain CHR instead of CRH?
Some historical manufacturer records use manufacturer-specific designations that differ from the government style. For MIL-PRF-83421, the official government style family is CRH. The complete M83421 PIN should be used when confirming the military component requirement.
Why might older documentation say MIL-C-83421?
Older drawings, bills of material and procurement records may retain legacy MIL-C terminology. Current Department of Defense documentation uses MIL-PRF-83421 terminology, so both references may appear when sourcing older military components.
Can Expediters help locate obsolete CRH capacitors?
Yes. Expediters supports sourcing for current, legacy and difficult-to-find electronic components. Search the exact M83421 or CRH part number first, then contact Expediters when additional sourcing assistance is required.