Equivalent & Substitute Parts for VIBLSD1-S5-S9-DIP

Part Overview

The VIBLSD1-S5-S9-DIP is an isolated DC DC converter manufactured by CUI Inc., designed for ITE (Commercial) applications. This module features a single 9V output with a maximum current of 111mA, an input voltage range of 4.75V to 5.25V, 1W output power, and 1kV isolation. The device is supplied in a 14-DIP through-hole module and is RoHS compliant. The product is currently classified as obsolete, making it necessary to identify alternative models with matching key parameters for replacement in existing designs or repairs.

Key Parameters

Manufacturer Part Number	Manufacturer	Category	Description	Product Status	Type	Number of Outputs	Voltage - Input (Min)	Voltage - Input (Max)	Voltage - Output 1	Current - Output (Max)	Power (Watts)	Voltage - Isolation	Applications	Operating Temperature	Efficiency	Mounting Type	Package / Case	RoHS Status
VIBLSD1-S5-S9-DIP	CUI Inc.		DC DC CONVERTER 9V 1W	Obsolete	Isolated Module	1	4.75V	5.25V	9V	111mA	1 W	1 kV	ITE (Commercial)	-40°C ~ 85°C	70%	Through Hole	14-DIP Module, 5 Leads	RoHS Compliant

Substitute Part Grouping Explanation

Substitute parts for VIBLSD1-S5-S9-DIP are identified strictly by matching the following key electrical and mechanical parameters: input voltage range (4.75V–5.25V), output voltage (9V), output current capacity (≥110mA), output power (~1W), isolation voltage (≥1kV), mounting type (through hole), number of outputs (1), operating temperature range (-40°C to 85°C), and RoHS compliance. Only parts meeting these explicit criteria are considered as direct substitutes.

Parameter Comparison

Parameter	VIBLSD1-S5-S9-DIP	PQMCE1-S5-S9-S
Manufacturer	CUI Inc.	CUI Inc.
Type	Isolated Module	Isolated Module
Number of Outputs	1	1
Voltage - Input (Min)	4.75V	4.75V
Voltage - Input (Max)	5.25V	5.25V
Voltage - Output 1	9V	9V
Current - Output (Max)	111mA	110mA
Power (Watts)	1 W	990 mW
Voltage - Isolation	1 kV	1.5 kV
Applications	ITE (Commercial)	ITE (Commercial)
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C (With Derating)
Efficiency	70%	71%
Mounting Type	Through Hole	Through Hole
Package / Case	14-DIP Module, 5 Leads	7-SIP Module, 4 Leads
RoHS Status	RoHS Compliant	RoHS Compliant

Engineering Selection Recommendations

Selection is based on matching product status, regulatory compliance, and certifications. The VIBLSD1-S5-S9-DIP is obsolete, while the substitute part PQMCE1-S5-S9-S is active. Both parts are RoHS Compliant and listed as suitable for ITE (Commercial) applications. PQMCE1-S5-S9-S provides certification under the CB Scheme, EN, IEC, and UL standards. Where ongoing compliance and availability are required, PQMCE1-S5-S9-S is matched strictly using the provided parameters.

Frequently Asked Questions (FAQ)

Q1: What are the essential criteria for substituting VIBLSD1-S5-S9-DIP?
A1: Essential criteria are input voltage range, output voltage, output current, output power, isolation voltage, mounting type, number of outputs, operating temperature range, and RoHS compliance.

Q2: Is there any difference in mounting style or package between the main part and the substitute?
A2: VIBLSD1-S5-S9-DIP uses a 14-DIP Module, 5 Leads; the substitute PQMCE1-S5-S9-S uses a 7-SIP Module, 4 Leads.

Q3: Does the substitute provide the same electrical performance?
A3: PQMCE1-S5-S9-S provides equivalent electrical parameters within the allowed tolerances for output voltage, current, power rating, and isolation voltage.

Q4: Are there compliance or certification differences between the parts?
A4: Both parts are RoHS compliant. PQMCE1-S5-S9-S includes listed certifications under CB Scheme, EN, IEC, and UL.

Q5: Are the substitute and main part interchangeable in all mechanical layouts?
A5: Mechanical interchangeability depends on the module package footprint; VIBLSD1-S5-S9-DIP and PQMCE1-S5-S9-S differ in package dimensions and lead configuration.

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