1N4448,113 Diode Equivalent & Substitute Parts Reference

Part Overview

The NXP USA Inc. 1N4448,113 is a general-purpose through-hole diode in the DO-204AH (DO-35, Axial) package with maximum ratings of 100 V reverse voltage and 200 mA average rectified current. Targeted for signal rectification and switching in small-signal applications, it features a maximum forward voltage of 1 V @ 100 mA and a reverse recovery time of 4 ns. The part is classified as obsolete, making it necessary to evaluate alternative models with equivalent electrical and mechanical characteristics for continued design, repair, and inventory management.

Key Parameters

Parameter	Main Part Value
Manufacturer Part Number	1N4448,113
Category	Diodes, Rectifiers
Voltage - DC Reverse (Vr) (Max)	100 V
Current - Average Rectified (Io)	200mA
Voltage - Forward (Vf) (Max) @ If	1 V @ 100 mA
Reverse Recovery Time (trr)	4 ns
Current - Reverse Leakage @ Vr	25 nA @ 20 V
Capacitance @ Vr, F	4pF @ 0V, 1MHz
Mounting Type	Through Hole
Package / Case	DO-204AH, DO-35, Axial
Supplier Device Package	ALF2
Operating Temperature - Junction	200°C (Max)
RoHS Status	ROHS3 Compliant
MSL	1 (Unlimited)
REACH Status	REACH Unaffected
ECCN	EAR99
HTSUS	8541.10.0070

Substitute Part Grouping Explanation

Substitute and equivalent diodes are grouped strictly according to the following allowed parameters from the main part:

Voltage - DC Reverse (Vr) (Max)
Current - Average Rectified (Io)
Voltage - Forward (Vf) (Max) @ If
Reverse Recovery Time (trr)
Current - Reverse Leakage @ Vr
Capacitance @ Vr, F
Mounting Type and Package/Case
Compliance (RoHS, REACH)
Mechanical compatibility (MSL, Operating Temperature) Only models matching or exceeding the primary electrical ratings, with identical package and mounting style, are included for substitution in the Diodes, Rectifiers category.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Voltage - DC Reverse (Vr) (Max)	Current - Average Rectified (Io)	Voltage - Forward (Vf) (Max) @ If	Reverse Recovery Time (trr)	Current - Reverse Leakage @ Vr	Capacitance @ Vr, F	Mounting Type	Package / Case	Operating Temperature - Junction	RoHS Status	MSL	REACH Status
1N4448,113	NXP USA Inc.	100 V	200mA	1 V @ 100 mA	4 ns	25 nA @ 20 V	4pF @ 0V, 1MHz	Through Hole	DO-204AH, DO-35, Axial	200°C (Max)	ROHS3 Compliant	1 (Unlimited)	REACH Unaffected
1N4148,113	NXP USA Inc.	100 V	200mA	1 V @ 10 mA	4 ns	25 nA @ 20 V	4pF @ 0V, 1MHz	Through Hole	DO-204AH, DO-35, Axial	200°C (Max)	ROHS3 Compliant	1 (Unlimited)	REACH Unaffected
1N4148-T26A	onsemi	100 V	200mA	1 V @ 10 mA	4 ns	5 µA @ 75 V	4pF @ 0V, 1MHz	Through Hole	DO-204AH, DO-35, Axial	-55°C ~ 175°C	ROHS3 Compliant	Not Applicable	REACH Unaffected
1N4148-T50A	Fairchild Semiconductor	100 V	200mA	1 V @ 10 mA	4 ns	5 µA @ 75 V	4pF @ 0V, 1MHz	Through Hole	DO-204AH, DO-35, Axial	175°C (Max)
1N4148TR	Fairchild Semiconductor	100 V	200mA	1 V @ 10 mA	4 ns	5 µA @ 75 V	4pF @ 0V, 1MHz	Through Hole	DO-204AH, DO-35, Axial	-65°C ~ 175°C	ROHS3 Compliant		REACH Unaffected
1N4148-T50R	onsemi	100 V	200mA	1 V @ 10 mA	4 ns	5 µA @ 75 V	4pF @ 0V, 1MHz	Through Hole	DO-204AH, DO-35, Axial	-55°C ~ 175°C	ROHS3 Compliant	Not Applicable	REACH Unaffected
1N4148TA	Fairchild Semiconductor	100 V	200mA	1 V @ 10 mA	4 ns	5 µA @ 75 V	4pF @ 0V, 1MHz	Through Hole	DO-204AH, DO-35, Axial	175°C (Max)
1N914-T50A	onsemi	100 V	200mA	1 V @ 10 mA	4 ns	5 µA @ 75 V	4pF @ 0V, 1MHz	Through Hole	DO-204AH, DO-35, Axial	-55°C ~ 175°C	ROHS3 Compliant	Not Applicable	REACH Unaffected
1N914BTR	Fairchild Semiconductor	100 V	200mA	1 V @ 100 mA	4 ns	5 µA @ 75 V	4pF @ 0V, 1MHz	Through Hole	DO-204AH, DO-35, Axial	-65°C ~ 175°C	ROHS3 Compliant		REACH Unaffected
1N914TR	Fairchild Semiconductor	100 V	200mA	1 V @ 10 mA	4 ns	5 µA @ 75 V	4pF @ 0V, 1MHz	Through Hole	DO-204AH, DO-35, Axial	-65°C ~ 175°C
1N916	NTE Electronics, Inc	100 V	200mA	1 V @ 10 mA	4 ns	5 µA @ 75 V	2pF @ 0V, 1MHz	Through Hole	DO-204AH, DO-35, Axial	-65°C ~ 175°C	RoHS non-compliant
1N916B	Fairchild Semiconductor	100 V	200mA	1 V @ 20 mA	4 ns	5 µA @ 75 V	2pF @ 0V, 1MHz	Through Hole	DO-204AH, DO-35, Axial	-65°C ~ 175°C

Engineering Selection Recommendations

Select alternative diodes that meet all key electrical and mechanical parameters, including reverse voltage, rectified current, forward voltage, reverse recovery time, leakage current, capacitance, mounting type, and package. Confirm compliance with RoHS and REACH only if required for application; otherwise, refer directly to available inventory, status, and certification per data provided.

Frequently Asked Questions (FAQ)

Q1: What determines if a diode is a valid substitute for 1N4448,113?
A: Valid substitutes must match the voltage - DC reverse rating, average rectified current, forward voltage, reverse recovery time, reverse leakage current, capacitance, mounting type, and package.

Q2: Is package or mounting type critical for substitution in small signal diodes?
A: The substitute diode must be physically compatible, specifically DO-204AH, DO-35, Axial and through-hole mounting.

Q3: Can RoHS or REACH compliance be used as a substitute selection criterion?
A: Compliance is determined by end-use requirements; substitute selection here is strictly based on electrical and mechanical parameter equivalence.

Q4: Should substitute diodes have matching or wider operating temperature ranges?
A: Select parts with equal or sufficient operating temperature ratings as indicated in tabulated data.

Q5: Are lower reverse leakage or faster reverse recovery times acceptable?
A: Substitution is possible so long as minimum requirements specified in the main part are met or exceeded.

Q6: Can parts with different maximum current ratings be used?
A: Substitute must provide no less than the required average rectified current; higher ratings are acceptable if other parameters are matched.

Q7: Is the supplier device package designation relevant?
A: Supplier package and full physical form factor must match for reliable drop-in replacement in existing designs.

Q8: What is the impact of product status on selection?
A: Obsolete status for the main part requires replacement. Chosen substitutes must be active, in stock, or with reliable supply according to the provided inventory status.

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