Audio Transformer
WHATC-05-042AR Audio Transformer
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01Specifications
WHATC-05-042AR specifications
ParameterValue
PIN
4 PIN
L/W/H(mm*mm*mm)
14*8*4.4
AC impedance PRI:SEC(Ω)
600：400
DC resistance PRI:SEC(Ω)
105：105
Turn Ratio(PRI:SEC)
1±1%
Installation Method
SMD
Hi-Pot(AC)
1250V
Insertion Loss（dB）
2.3
Values are taken from published parameters; the datasheet prevails.
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02Documents
Datasheet, CAD and reports
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WHATC-05-042AR Datasheet (PDF)2026-04-10 · This part Download ↓
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3D model (STEP)2026-07-06 · This part Download ↓
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Quality certificates (ISO / RoHS / REACH)Latest · All products View →
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03Quality
Quality and compliance
DocumentNo.Issued / tested byDateApplies toActions
Certificate
Certificate · Company
ISO 9001:2015No. 19826Q02503R101
Quality management systemBeijing Xinjiyuan Certification Co., Ltd.Valid 2026-10-17 to 2029-10-16
19826Q02503R101
Beijing Xinjiyuan Certification Co., Ltd.
Valid2026-10-17 to 2029-10-16
Company
View PDF →
Verify →
Scope: R&D and sales of precision electronic connectors
Certificate
Certificate · Company
ISO 14001:2015No. 19826E01323R101
Environmental management systemBeijing Xinjiyuan Certification Co., Ltd.Valid 2026-10-17 to 2029-10-16
19826E01323R101
Beijing Xinjiyuan Certification Co., Ltd.
Valid2026-10-17 to 2029-10-16
Company
View PDF →
Verify →
Scope: R&D and sales of precision electronic connectors ISO certificates cover VOOHU's management systems.
04Compare
Same-series Comparison
Red marks values that differ from this part; data from the published parameters of each part.
PIN
4 PIN
4 PIN
4 PIN
L/W/H(mm*mm*mm)
14*8*4.4
20.5*8.5*4.5
20.9*8.5*4.5
AC impedance PRI:SEC(Ω)
600：400
20000：20000
600：287
DC resistance PRI:SEC(Ω)
105：105
2370：2820
155：144
Turn Ratio(PRI:SEC)
1±1%
1±1%
1±2%
Installation Method
SMD
SMD
SMD
Hi-Pot(AC)
1250V
1250V
1650V
Insertion Loss（dB）
2.3
1.3±0.5
3.5
WHATC-05-042ARNot sure which part in the series fits? Ask our FAE team which one to sample.
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05Support
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01Replace your current partShare the part number you use today. An engineer compares pinout, package, electrical parameters and temperature range item by item, and lists the differences and open points.Start a replacement review →
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03Unstable link after useSeeing link drops, interference or failed tests? Send us the symptoms and conditions and get an FAE-reviewed troubleshooting checklist.Start troubleshooting →
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