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Part No.	B66397
Manufacturer	EPCOS
Size	106 Kbytes
Pages	4 pages
Description	ETD 59/31/22 Core

Datasheet Summary with AI

1. Core Specifications: B66397

️· Core Type: E-Core
️· Materials:
- N27
- N87
️· Air Gap Calculations: (Important for saturation current)
- Table providing `_K1_`, `_K2_`, `_K3_`, and `_K4_` coefficients for air gap and A-value calculation.
■ `K1`, `K2`: Valid range for 's' (air gap): 0.10 mm < s < 3.50 mm
■ `K3`, `K4`: Valid range for `A_L`: 170 nH < `A_L` < 1660 nH
️· Calculation Factors: (Used for saturation current calculation – see air gap coefficients above)
️· Saturation Current: (The coefficients `K1`, `K2`, `K3`, `K4` are used in formulas to determine the saturation current, not directly provided in a table. The formulas are presumably in the document "E cores: general information" referred to.

2. Coil Former & Yoke Specifications: B66398

️· Material Options:
- B66398A: GFR polyterephthalate, UL 94 V-0, Insulation Class F, Max. Operating Temperature: 155°C, Color: Black, Manufactured by Bayer (Pocan B4235).
- B66398W: GFR polyterephthalate, UL 94 V-0, Insulation Class H, Max. Operating Temperature: 180°C, Color: Black, Manufactured by DuPont (Rynite FR530).
️· Solderability: Specified testing parameters.
️· Winding: Reference to "Processing Notes" on page 158.
️· Yoke Material: Stainless spring steel (0.4 mm).
️· Dimensions and Wire Gauge Options: Several combinations of `A_N` (cross-sectional area), `l_N` (length), and `A_R` (wire gauge/resistance) are listed for coil formers. These offer multiple winding possibilities.

3. Ordering Information/Codes

️· Core Ordering: Examples include:
- B66397-G200-X1** (N27)
- B66397-G1000-X1** (N87)
- B66397-G1500-X1** (N87)
- B66397-G2000-X1** (N87)
️· Coil Former Ordering: Examples include:
- B66398A1024T001 (B66398A)
- B66398W1024T001 (B66398W)
- B66398A2000

4. Important Notes and Context

️· Reference Document: The text refers to a document called "E cores: general information" (page 158, and mentioned in connection with formulas for saturation current). It's crucial for understanding the calculations involved.
️· 'X1' Suffix: In the ordering codes, the 'X1' suffix likely indicates a specific revision or version of the part.
️· Material Specifications: Pocan B4235 and Rynite FR530 are specific polymer grades.
️· Testing Standards: Solderability testing references IEC 60068-2-20.