Mechanical agreement
Envelope, sensor mass, mounting thread, seating face, orientation, connector clearance and cable restraint.
PZA / ENGINEERING RESOURCES
Endevco, PCB & B&K accelerometer replacement review
Make the sensing principle, the interfaces and the evidence explicit.
Content reviewed
Cross-reference by requirements, then by model.
Original manufacturer names identify the reference under review. A PZA family is a starting point for evaluation; it is not an approved drop-in match or an affiliation.
Start with an original model.
Find an exact reference and a PZA configuration to review. Matching a reference does not approve a drop-in replacement.
| Original model / source | Original benchmark only | PZA configuration to review | Difference / approval check |
|---|---|---|---|
| Endevco 2221F ↗Primary source readReviewed 2026-11-09 | Sensitivity: 10.0 pC/g typical; 7.5 pC/g minimum Response: 1–10,000 Hz, ±5% Mass / temperature: 11g; −55°C to +260°C Electrical / mounting: 900pF; positive output; isolated 6-32 through-hole assembly | Review PZA-CHG-260 ↗ | Original datasheet values. The -R store listing excludes a cable. |
| PCB 357B03 ↗Primary source readReviewed 2026-11-09 | Sensitivity: 10 pC/g, ±15% Response: 9 kHz at +5%; resonance ≥38 kHz Mass / temperature: 11g; −71°C to +260°C Electrical / mounting: 930pF typical; negative output; 10-32 side connector | Review PZA-CHG-260 ↗ | Low-frequency response is determined by the external conditioner. The +5% limit is not a ±5% flat-band statement. |
| PCB 352C23 ↗Primary source readReviewed 2026-11-09 | Sensitivity: 5 mV/g, ±20% Response: 2–10,000 Hz, ±5% Mass / temperature: 0.2g; −54°C to +121°C Electrical: 18–30V compliance; 2–20mA excitation | Review PZA-MIN-020V ↗ | Voltage output. Do not insert a charge amplifier after the integral electronics. |
| PCB 356A01 ↗Primary source readReviewed 2026-11-09 | Sensitivity: 5 mV/g, ±20% Response: X: 2–5,000 Hz; Y/Z: 2–8,000 Hz, ±5% Mass / temperature: 1g; standard −54°C to +121°C Electrical / mounting: Three voltage channels; integral cable | Review PZA-TRI-01V ↗ | HT option limits must be read separately from the standard configuration. |
| Endevco Model 22 ↗Primary source readReviewed 2026-11-09 | Sensitivity: 0.40 pC/g typical; 0.30 minimum Response: 5–10,000 Hz, ±5%; 54kHz resonance Mass / temperature: 0.14g alone / 0.4g with cable; −73°C to +149°C Electrical / mounting: 290pF including 6-inch lead; negative output; adhesive mount | Review PZA-MIN-014C ↗ | Legacy reference; original sheet describes non-hermetic epoxy sealing. |
| Endevco 2250A ↗Primary source readReviewed 2026-11-09 | Response: 2–15,000 Hz, ±1dB Mass / temperature: 0.4g; −55°C to +125°C Electrical / mounting: 18–30V compliance; 2–20mA; removable micro cable / adhesive mounting | Review PZA-MIN-040V ↗ | Legacy reference. Read the suffix and calibration sheet before choosing a sensitivity. |
| Endevco 2228C ↗Primary source readReviewed 2026-11-09 | Sensitivity: 2.8 pC/g; three charge outputs Response: 4,000 Hz maximum, ±5% Mass / temperature: 15g; maximum +177°C Mounting: Two-screw mount; three separate connectors; isolated | Review PZA-TRI-15C ↗ | Original temperature is +177°C. It does not validate a +250°C PZA request. |
| Endevco 7270A ↗Primary source readReviewed 2026-11-09 | Construction: Undamped DC bridge; single axis Mass / excitation: 1.5g; 10V Mounting: 4-40 screws | Review PZA-PRZ-7270 ↗ | Range-specific bandwidth, survival and suffixes must be read from the original table. |
| Endevco 7270AM6 ↗Primary source readReviewed 2026-11-09 | Construction: Mechanical-filter shock configuration Mass / response: 8.4g; DC–10kHz, ±5% Mounting: 1/4-28 integral stud | Review PZA-PRZ-7270M6 ↗ | The filtered mount differs from the flat two-screw 7270A footprint. |
| Endevco 7274A ↗Primary source readReviewed 2026-11-09 | Construction: Three undamped orthogonal bridges Ranges / excitation: 2K / 6K / 20K / 60K g; calibrated at 5V Connection: Eight-conductor cable; two-bolt mount | Review PZA-PRZ-7274 ↗ | Same footprint family is not sufficient for electrical substitution. |
| PCB 422E11 ↗Primary source readReviewed 2026-11-09 | Gain / swing: 100 mV/pC; ±2.5V specified output Response: 5Hz low-frequency response, −5% Electrical: Inverted output; input resistance requirement applies | Review PZA-422-100 ↗ | The general 422E converter is not automatically suitable for low sensor resistance at high temperature. |
| PCB 422E13 ↗Primary source readReviewed 2026-11-09 | Gain / swing: 1 mV/pC; ±2.5V specified output Response: 5Hz low-frequency response, −5% Electrical: Inverted output; input resistance requirement applies | Review PZA-422-01 ↗ | The general 422E converter is not automatically suitable for low sensor resistance at high temperature. |
| Endevco 2273A ↗Identity checked; full data pendingReviewed 2026-11-09 | Reference status: Identity confirmed in the original manufacturer legacy index; exact specifications require the model datasheet | Review PZA-CHG-400 ↗ | The index identifies original-manufacturer alternatives; it does not approve a PZA substitute. |
| Endevco 2273AM1 ↗Identity checked; full data pendingReviewed 2026-11-09 | Reference status: Identity confirmed in the original manufacturer legacy index; exact specifications require the model datasheet | Review PZA-CHG-400 ↗ | The index identifies original-manufacturer alternatives; it does not approve a PZA substitute. |
| PCB 357A08 ↗Identity checked; full data pendingReviewed 2026-11-09 | Reference status: Identity confirmed in the original manufacturer legacy index; exact specifications require the model datasheet | Review PZA-MIN-014C ↗ | The index identifies original-manufacturer alternatives; it does not approve a PZA substitute. |
| PCB 352A71 ↗Identity checked; full data pendingReviewed 2026-11-09 | Reference status: Identity confirmed in the original manufacturer legacy index; exact specifications require the model datasheet | Review PZA-MIN-040V ↗ | The index identifies original-manufacturer alternatives; it does not approve a PZA substitute. |
| PCB 357B11 ↗Exact datasheet pendingReviewed 2026-11-09 | Reference status: Exact suffix and controlled original datasheet needed; numerical benchmark not transcribed | Review PZA-CHG-260 ↗ | Buyer-reference entry for manual review. |
| PCB 352A21 ↗Exact datasheet pendingReviewed 2026-11-09 | Reference status: Exact suffix and controlled original datasheet needed; numerical benchmark not transcribed | Review PZA-MIN-040V ↗ | Buyer-reference entry for manual review. |
| Endevco 65HT ↗Exact datasheet pendingReviewed 2026-11-09 | Reference status: Exact suffix and controlled original datasheet needed; numerical benchmark not transcribed | Review PZA-TRI-HT ↗ | Buyer-reference entry for manual review. |
| Endevco 7264C ↗Exact datasheet pendingReviewed 2026-11-09 | Reference status: Exact suffix and controlled original datasheet needed; numerical benchmark not transcribed | Review PZA-PRZ-7264 ↗ | Buyer-reference entry for manual review. |
| PCB 3991 series ↗Exact datasheet pendingReviewed 2026-11-09 | Reference status: Exact suffix and controlled original datasheet needed; numerical benchmark not transcribed | Review PZA-PRZ-7270 ↗ | Buyer-reference entry for manual review. |
| B&K 4371 ↗Primary source readReviewed 2026-11-09 | Construction: Charge-output DeltaShear / Uni-Gain reference Mass: 11g Interface review: Read sensitivity tolerance, mounting thread and original calibration chart | Review PZA-CHG-260 ↗ | See the exact 4371 or V-type column in the original sheet. |
| B&K 4393 ↗Primary source readReviewed 2026-11-09 | Mass: 2.4g excluding cable Response: Up to 16.5kHz at the 10% limit Connection: Subminiature socket; M3 mounting thread | Review PZA-MIN-240C ↗ | The 10% limit is not a 5% flat-band claim. |
| B&K 4321 ↗Primary source readReviewed 2026-11-09 | Construction: Three-axis charge reference; exact calibration chart and dimensions required | Review PZA-TRI-15C ↗ | Listed for requirements review, not a mass-matched substitute. |
| B&K 2635 ↗Primary source readReviewed 2026-11-09 | Functions: Charge input; three-digit sensitivity conditioning; selectable filters Integration: Acceleration, velocity and displacement functions in the original instrument | Review PZA-2635-LAB ↗ | These original functions are requests to review for PZA, not confirmed included features. |
| PCB 422E12 ↗Primary source readReviewed 2026-11-09 | Gain / swing: 10 mV/pC; ±2.5V specified output Response: 5Hz low-frequency response, −5% | Review PZA-422-10 ↗ | Exact gain and swing checked in the original manual; hot-state input resistance still needs review. |
| PCB 356A01/NC ↗Exact datasheet pendingReviewed 2026-11-09 | Suffix review: Separate original variant. Do not inherit the base-model cable, sensitivity tolerance or mounting details. | Review PZA-TRI-01V ↗ | Verify this exact suffix in the original controlled document before selecting a configuration. |
| Endevco 2250AM1-10 ↗Identity checked; full data pendingReviewed 2026-11-09 | Suffix review: Separate original variant. Do not inherit the base-model cable, sensitivity tolerance or mounting details. | Review PZA-MIN-040V ↗ | Verify this exact suffix in the original controlled document before selecting a configuration. |
| Endevco 7264G ↗Exact datasheet pendingReviewed 2026-11-09 | Suffix review: Separate original variant. Do not inherit the base-model cable, sensitivity tolerance or mounting details. | Review PZA-PRZ-7264 ↗ | Verify this exact suffix in the original controlled document before selecting a configuration. |
| B&K 4371-V ↗Identity checked; full data pendingReviewed 2026-11-09 | Suffix review: Separate original variant. Do not inherit the base-model cable, sensitivity tolerance or mounting details. | Review PZA-CHG-260 ↗ | Verify this exact suffix in the original controlled document before selecting a configuration. |
| B&K 4393-V ↗Identity checked; full data pendingReviewed 2026-11-09 | Suffix review: Separate original variant. Do not inherit the base-model cable, sensitivity tolerance or mounting details. | Review PZA-MIN-240C ↗ | Verify this exact suffix in the original controlled document before selecting a configuration. |
Approve mechanical, electrical and mounted-response agreement.
Electrical agreement
Charge or voltage output, polarity, sensitivity and tolerance, excitation, pinout, thermal insulation and headroom.
Measurement agreement
Installed flat frequency response, resonance, transverse sensitivity, shock pulse, temperature and calibration conditions.
No substitution is accepted from a series name alone. Provide the original datasheet and complete suffix for a documented review.
START WITH THE MEASUREMENT
Temperature. Mass. Pulse. Signal path.
Send the original model and your test conditions. Request a configuration review, CAD and calibration requirements together.
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