EC4AB17H Equivalent & Substitute Parts

Part Overview

The EC4AB17H is an isolated module DC-DC converter manufactured by Cincon Electronics Co. LTD, designed for commercial ITE applications. This single-output converter accepts input voltages between 18V and 36V and delivers 3.3V at 1A maximum output current, with 3.3W power rating and 3 kV isolation. The device is actively produced and stocked with 12,200 units available. Substitute parts are identified when equivalent electrical specifications, mechanical compatibility, and regulatory compliance are maintained across alternative product lines within the manufacturer's portfolio.

Key Parameters

Parameter	Value
Manufacturer	Cincon Electronics Co. LTD
Input Voltage Range	18V – 36V
Output Voltage	3.3V
Output Current (Max)	1A
Power Rating	3.3W
Isolation Voltage	3 kV
Type	Isolated Module
Mounting Type	Through Hole
Package	24-DIP Module, 14 Leads
Operating Temperature	−25°C to 71°C
RoHS Status	ROHS3 Compliant
Approvals	CE, cURus

Substitute Part Grouping Explanation

Substitution of the EC4AB17H is valid when the alternative part maintains identical electrical performance across the following critical parameters: input voltage range (18V–36V), output voltage (3.3V), maximum output current (1A), power rating (3.3W), isolation voltage (3 kV), and mechanical form factor (24-DIP Module, 14 Leads through-hole mounting). Both the main part and substitute must operate within the specified temperature range (−25°C to 71°C), comply with RoHS3 and REACH requirements, and carry CE and cURus certifications. The EC4A17H qualifies as a direct substitute based on these criteria, with minor variations in efficiency and physical height that do not affect functional compatibility in circuit applications.

Parameter Comparison

Parameter	EC4AB17H	EC4A17H	Match Status
Manufacturer	Cincon Electronics Co. LTD	Cincon Electronics Co. LTD	Identical
Input Voltage (Min)	18V	18V	Identical
Input Voltage (Max)	36V	36V	Identical
Output Voltage	3.3V	3.3V	Identical
Output Current (Max)	1A	1A	Identical
Power Rating	3.3W	3.3W	Identical
Isolation Voltage	3 kV	3 kV	Identical
Type	Isolated Module	Isolated Module	Identical
Mounting Type	Through Hole	Through Hole	Identical
Package	24-DIP Module, 14 Leads	24-DIP Module, 14 Leads	Identical
Operating Temperature	−25°C to 71°C	−25°C to 71°C	Identical
Efficiency	73%	74%	Comparable
Physical Height	0.50" (12.7mm)	0.40" (10.2mm)	Variant
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Identical
Approvals	CE, cURus	CE, cURus	Identical
Product Status	Active	Active	Identical

Engineering Selection Recommendations

Both the EC4AB17H and EC4A17H are active products from Cincon Electronics Co. LTD with full regulatory compliance (CE, cURus certifications) and RoHS3 compliance. Selection between these parts is determined by application-specific requirements and availability constraints.

The EC4AB17H is the primary specification with 12,200 units in stock and 73% efficiency. This part is suitable for standard through-hole PCB applications where the 0.50-inch (12.7mm) height accommodates typical board layouts.

The EC4A17H serves as a direct electrical substitute with identical input/output specifications, isolation voltage, and operating temperature range. This part offers a marginal efficiency improvement (74% versus 73%) and a reduced physical height of 0.40 inches (10.2mm), making it advantageous for space-constrained designs. Current inventory is 745 units. The lower profile does not compromise electrical performance or mechanical mounting compatibility in 24-DIP through-hole applications.

Both parts carry identical certifications and comply with the same regulatory standards. Selection should be based on PCB height constraints, inventory availability, and application-specific thermal considerations.

Frequently Asked Questions (FAQ)

Q: Can EC4A17H replace EC4AB17H in existing designs?

A: Yes. The EC4A17H is electrically and mechanically compatible as a direct substitute. Both parts accept 18V–36V input, deliver 3.3V at 1A output, maintain 3 kV isolation, and use identical 24-DIP through-hole packaging. The primary difference is physical height (10.2mm versus 12.7mm), which benefits space-constrained applications without affecting circuit functionality.

Q: What are the key compatibility criteria for these substitutes?

A: Compatibility is determined by: input voltage range (18V–36V), output voltage (3.3V), maximum output current (1A), isolation voltage (3 kV), package type (24-DIP Module, 14 Leads), mounting method (through-hole), operating temperature range (−25°C to 71°C), and regulatory compliance (CE, cURus, RoHS3).

Q: Does the efficiency difference between 73% and 74% affect circuit design?

A: The 1% efficiency difference is negligible for most ITE applications. Both parts dissipate similar thermal energy under identical load conditions. Thermal management design should account for worst-case power dissipation at maximum output current (1A at 3.3V).

Q: Are there any height-related considerations for PCB layout?

A: The EC4A17H is 2.5mm shorter than the EC4AB17H (10.2mm versus 12.7mm). This reduced height may be advantageous in compact designs but does not affect electrical performance. Verify PCB clearance requirements for your specific application before substitution.

Q: Do both parts require the same certifications and compliance documentation?

A: Yes. Both EC4AB17H and EC4A17H carry identical certifications (CE, cURus) and comply with RoHS3 and REACH requirements. No additional compliance documentation is required when substituting between these parts.

Q: What is the moisture sensitivity level for these parts?

A: Both parts have MSL 1 (Unlimited), indicating no moisture sensitivity restrictions during storage, handling, or assembly.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message