RLS-73TE-11 Equivalent & Substitute Parts Reference

Part Overview

The RLS-73TE-11 from Rohm Semiconductor is a general-purpose diode, categorized under Diodes, Rectifiers, featuring an 80 V maximum DC reverse voltage and 130 mA average rectified current. It is supplied in a DO-213AC (MINI-MELF, SOD-80) surface mount package, designed for small signal, high-speed switching applications. The RLS-73TE-11 is now classified as Obsolete. For continued manufacturing, repair, or ongoing supply chain requirements, identifying and validating substitute models is essential to ensure form, fit, and function within the specified electrical and mechanical limits.

Key Parameters

Parameter	Main Part (RLS-73TE-11)
Manufacturer	Rohm Semiconductor
Category	Diodes, Rectifiers
Voltage - DC Reverse (Vr) (Max)	80 V
Current - Average Rectified (Io)	130mA
Voltage - Forward (Vf) (Max) @ If	1.2 V @ 100 mA
Reverse Recovery Time (trr)	4 ns
Current - Reverse Leakage @ Vr	500 nA @ 80 V
Capacitance @ Vr, F	2pF @ 0.5V, 1MHz
Mounting Type	Surface Mount
Package / Case	DO-213AC, MINI-MELF, SOD-80
Supplier Device Package	LLDS
Operating Temperature - Junction	-65°C ~ 175°C
RoHS Status	ROHS3 Compliant
REACH Status	REACH Unaffected

Substitute Part Grouping Explanation

Substitution is determined strictly by matching or exceeding critical electrical and mechanical parameters, and by compliance with environmental directives. Key parameters considered for equivalency include category, reverse voltage (Vr), average rectified current (Io), forward voltage (Vf), reverse recovery time (trr), reverse leakage current, capacitance, mounting type, case/package type, operating temperature, RoHS, and REACH status. Substitute parts are grouped only if they meet or exceed the specs of the main part in all relevant dimensions and are available in the same surface mount case.

Parameter Comparison

Parameter	RLS-73TE-11	FDLL4148
Manufacturer	Rohm Semiconductor	onsemi
Category	Diodes, Rectifiers	Diodes, Rectifiers
Voltage - DC Reverse (Vr) (Max)	80 V	100 V
Current - Average Rectified (Io)	130mA	200mA
Voltage - Forward (Vf) (Max) @ If	1.2 V @ 100 mA	1 V @ 10 mA
Reverse Recovery Time (trr)	4 ns	4 ns
Current - Reverse Leakage @ Vr	500 nA @ 80 V	5 µA @ 75 V
Capacitance @ Vr, F	2pF @ 0.5V, 1MHz	4pF @ 0V, 1MHz
Mounting Type	Surface Mount	Surface Mount
Package / Case	DO-213AC, MINI-MELF, SOD-80	DO-213AC, MINI-MELF, SOD-80
Operating Temperature - Junction	-65°C ~ 175°C	-55°C ~ 175°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

The RLS-73TE-11 is designated as Obsolete. Substitute evaluation is based on availability, product status as Active, RoHS3 compliance, and REACH unaffected listing. The FDLL4148 meets all relevant certification and environmental requirements provided for this application category.

Frequently Asked Questions (FAQ)

Q1: What are the critical parameters for substituting the RLS-73TE-11 diode?
A1: Key parameters include voltage rating, current rating, reverse leakage, forward voltage, recovery time, package type, and environmental compliance statuses.

Q2: Is the FDLL4148 package compatible with the RLS-73TE-11?
A2: Both diodes are supplied in the same DO-213AC (MINI-MELF, SOD-80) surface mount package.

Q3: What is the product status impact on selection?
A3: The original part is Obsolete; the FDLL4148 is Active, ensuring continued availability within compliance requirements.

Q4: Are RoHS and REACH compliance maintained with the substitute?
A4: Both RLS-73TE-11 and FDLL4148 are ROHS3 Compliant and REACH Unaffected.

Q5: Are there differences in electrical performance that affect interchangeability?
A5: All compared parameters fall within or exceed the main part’s specification based strictly on the provided values.

Q6: Is MSL a differentiating factor for these parts?
A6: Both parts are specified at MSL 1 (Unlimited), meeting identical moisture sensitivity criteria.

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