> Resources>Compliance Standards>Automotive (ISO, GMW, SAE, FORD, JASO)> FMC1278 CI 280: Electrostatic Discharge Specification for Electrical/Electronic Components and Subsystems per Ford Motor Company

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FMC1278 CI 280: Electrostatic Discharge Specification for Electrical/Electronic Components and Subsystems per Ford Motor Company

This section will give you a brief overview of the electrostatic discharge (ESD) immunity requirements in the FMC1278 standard for compliance of electrical products for Ford Motor Company. The full standard is available for download - http://www.fordemc.com/docs/download/FMC1278.pdf.

Overview

FMV1278 CI 280 replaces EMC-CS-2009.1, each of which refers to ISO 10605 for the ESD testing portion. FMV1278 is applicable for all 12 and 124 volt DC electrical and electronic components/subsystems that are planned for use on 2020 Ford vehicle programs and beyond in addition to E/E component/subsystems whose commercial agreements are signed after July 1, 2015.

CI 280 Electrostatic Discharge is required in most components including all electronic modules (A, AS, AM, AX, AW), electric motors (EM), and other devices (D).

Differences from EMC-CS-2009.1

  • With respect to reporting, the laboratory may not use of the terms pass or fail. They may only report Status I, II or III. FMC will make determination of pass/fail based during their review of the formal test report
  • Parametric testing no longer required immediately after testing. However, parametric testing is recommended after testing on additional test samples.
  • ISO 10506 (2001) replaced by ISO 10605 (2008). Affects ESD simulator verification.
  • For handling tests, the DUT is placed on an dielectric support vs a dissipative mat. 200 mm ground still required.
  • Figures updated to show that CAN wiring remains co-bundled with other wiring during powered ESD tests.
  • ESD stress levels now extended to +/- 15 KV for CAN circuits in diagnostic connector

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FMV1278 CI 280 ESD Requirements: Handling (unpowered)

Minimum number of discharges at each polarity = 3

Discharge
Sequence		Type of DischargeTest Voltage LevelFunctional Performance Status - Class A/B/C
1Contact 
150 pF
2 kOhm		±4kVIV
2Contact 
150 pF
2 kOhm		±6kV
3Air 
150 pF
2 kOhm		±8kV

FMV1278 CI 280 ESD Requirements:Powered (all component surfaces)

Minimum number of discharges at each polarity = 3

Discharge
Sequence		Type of DischargeTest Voltage LevelFunctional Performance Status - Class A/B/C
1Air
330 pF
2 kOhm		±4kVI
2Contact 
330 pF
2 kOhm		±4kV
3Air
330 pF
2 kOhm		±6kV
4Contact 
330 pF
2 kOhm		±6kVII
5Air
330 pF
2 kOhm		±8kV
6Contact 
330 pF
2 kOhm		±8kV
7Air
330 pF
2 kOhm		±15kV
8Air
150 pF
2 kOhm		±25kV

Functional Performance Status

  • Functional Performance Status (I):
  • The function operates without deviation (within specified tolerances defined by EMC test plan) during and after exposure to the disturbance.
  • Functional Performance Status (II)
  • The function deviated from normal design performance and is perceptible to the customer.
  • The deviation does not impact safety or significantly impact customer satisfaction.
  • After the disturbance is removed, recovery of normal function shall occur within a time equal or lower to that at startup (i.e. key-on). Alternatively, recovery shall be in line with a documented recovery strategy does not require the driver to perform any actions that are considered unsafe while the car is in motion.
  • No effect on temporary or permanent type memory is allowed.
  • The deviation in performance does not affect other related functions requiring Status I performance
  • Functional Performance status (IV)
  • The device shall not sustain damage, changes in I/O parametric values (resistance, capacitance, leakage current, etc.) or a permanent reduction in functionality.