F1827RD1400 Equivalent & Substitute Parts Reference Page

Part Overview

The Sensata-Crydom F1827RD1400 is a diode module suited for general-purpose rectification applications, specified for 1400 V and 25A DC operation with a chassis mount module form factor. This product is currently classified as obsolete, necessitating the identification and use of substitute parts for continued maintenance, repair, and design-in scenarios. Alternatives must match key electrical and mechanical parameters to ensure direct interchangeability within the specified product category of Diodes, Rectifiers.

Key Parameters

Manufacturer Part Number	Manufacturer	Category	Diode Configuration	Voltage - DC Reverse (Vr) (Max)	Current - Average Rectified (Io)	Voltage - Forward (Vf) (Max) @ If	Speed	Operating Temperature - Junction	Mounting Type	Package / Case	RoHS Status
F1827RD1400	Sensata-Crydom	Diodes, Rectifiers	1 Pair Series Connection	1400 V	25A (DC)	1.55 V @ 75 A	Standard Recovery >500ns, > 200mA (Io)	-40°C ~ 125°C	Chassis Mount	Module	RoHS Compliant

Substitute Part Grouping Explanation

Substitute selection for the F1827RD1400 is determined by evaluating only the explicitly provided electrical and mechanical parameters. Replacement diodes and rectifiers must match these criteria: diode configuration (1 Pair Series Connection), maximum DC reverse voltage (1400 V), average rectified current (≥25A), forward voltage characteristics, recovery speed, operating junction temperature range, mounting type (chassis mount), package/case, and compliance status. Parameter matching ensures compatibility within the Diodes, Rectifiers product category.

Parameter Comparison

Parameter	F1827RD1400	MDD26-14N1B
Manufacturer Part Number	F1827RD1400	MDD26-14N1B
Manufacturer	Sensata-Crydom	IXYS
Category	Diodes, Rectifiers	Diodes, Rectifiers
Diode Configuration	1 Pair Series Connection	1 Pair Series Connection
Voltage - DC Reverse (Vr) (Max)	1400 V	1400 V
Current - Average Rectified (Io)	25A (DC)	36A
Voltage - Forward (Vf) (Max) @ If	1.55 V @ 75 A	1.38 V @ 80 A
Speed	Standard Recovery >500ns, > 200mA (Io)	Standard Recovery >500ns, > 200mA (Io)
Operating Temperature - Junction	-40°C ~ 125°C	-40°C ~ 150°C
Mounting Type	Chassis Mount	Chassis Mount
Package / Case	Module	TO-240AA
RoHS Status	RoHS Compliant	ROHS3 Compliant

Engineering Selection Recommendations

F1827RD1400 is obsolete and requires substitution for ongoing applications. Substitute parts, such as MDD26-14N1B, are suitable when all key parameters match or exceed the original specification. Both parts are RoHS compliant and classified under ECCN EAR99 for export purposes. Substitute selection is based solely on product status and provided compliance certifications.

Frequently Asked Questions (FAQ)

Q: What are the critical parameters for selecting a substitute for F1827RD1400?
A: Only the explicitly provided electrical ratings, diode configuration, mounting type, package, operating temperature range, and compliance status.

Q: Is MDD26-14N1B fully compatible with F1827RD1400 in terms of electrical parameters?
A: MDD26-14N1B meets or exceeds all listed electrical ratings based on the specified values.

Q: Are there package or mounting differences to consider?
A: F1827RD1400 uses a Module package, while MDD26-14N1B uses TO-240AA. Both are chassis mount; mechanical dimensions should be compared based only on available data.

Q: How does compliance status affect substitute selection?
A: Both substitute and original parts are RoHS compliant; check provided certification only.

Q: Can standard recovery diodes be substituted in all cases?
A: Only when recovery speed and current match as specified: standard recovery >500ns, >200mA (Io).

Q: Does the substitute part support the same operating temperature range?
A: MDD26-14N1B supports a wider junction temperature range than specified for F1827RD1400. Both meet the minimum stated requirement.

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