Equivalent & Substitute Parts for SS-5H-2A-BKH

Part Overview

The SS-5H-2A-BKH is a 2 A, 300 V AC/DC board mount fuse with slow blow response characteristics, manufactured by Eaton - Electronics Division. This through-hole radial fuse is designed for circuit protection in applications requiring board-level mounting with cartridge-style exclusion. The part is currently active in production with 1119 units in stock. Substitute parts are identified when electrical parameters, mechanical specifications, and approval certifications remain equivalent, enabling component interchangeability for procurement flexibility, inventory optimization, or supply chain continuity.

Key Parameters

Parameter	Value
Current Rating	2 A
Voltage Rating (AC)	300 V
Response Time	Slow Blow
Mounting Type	Through Hole
Fuse Type	Board Mount (Cartridge Style Excluded)
Package / Case	Radial, Box
Breaking Capacity @ Rated Voltage	100 A
Melting I²t	29.8
Operating Temperature Range	-40°C ~ 125°C
Size / Dimension	0.335" L x 0.170" W x 0.337" H (8.50mm x 4.30mm x 8.55mm)
DC Cold Resistance	31.15 mOhms
Approval Agencies	CQC, cURus, KC, PSE, TUV, VDE

Substitute Part Grouping Explanation

Substitution eligibility for the SS-5H-2A-BKH is determined by strict equivalence across the following critical parameters:

Current Rating: 2 A (exact match required)
Voltage Rating (AC): 300 V (exact match required)
Response Time: Slow Blow (exact match required)
Mounting Type: Through Hole (exact match required)
Fuse Type: Board Mount (Cartridge Style Excluded) (exact match required)
Package / Case: Radial, Box (exact match required)
Breaking Capacity @ Rated Voltage: 100 A (exact match required)
Melting I²t: 29.8 (exact match required)
Operating Temperature Range: -40°C ~ 125°C (exact match required)
Size / Dimension: 0.335" L x 0.170" W x 0.337" H / 8.50mm x 4.30mm x 8.55mm (exact match required)
DC Cold Resistance: 31.15 mOhms (exact match required)
Approval Agencies: CQC, cURus, KC, PSE, TUV, VDE (all certifications required)

The substitute part SS-5H-2A-BK meets all these criteria and is classified as a parametric equivalent.

Parameter Comparison

Parameter	SS-5H-2A-BKH (Main Part)	SS-5H-2A-BK (Substitute)	Match Status
Manufacturer	Eaton - Electronics Division	Eaton - Electronics Division	Identical
Series	SS-5H	SS-5H	Identical
Current Rating (Amps)	2 A	2 A	Identical
Voltage Rating - AC	300 V	300 V	Identical
Response Time	Slow Blow	Slow Blow	Identical
Package / Case	Radial, Box	Radial, Box	Identical
Breaking Capacity @ Rated Voltage	100 A	100 A	Identical
Melting I²t	29.8	29.8	Identical
Approval Agency	CQC, cURus, KC, PSE, TUV, VDE	CQC, cURus, KC, PSE, TUV, VDE	Identical
Operating Temperature	-40°C ~ 125°C	-40°C ~ 125°C	Identical
Size / Dimension	0.335" L x 0.170" W x 0.337" H (8.50mm x 4.30mm x 8.55mm)	0.335" L x 0.170" W x 0.337" H (8.50mm x 4.30mm x 8.55mm)	Identical
DC Cold Resistance	31.15 mOhms	31.15 mOhms	Identical
Product Status	Active	Active	Identical
Inventory (Pcs)	1119 New Original In Stock	784 New Original In Stock	Both in stock
RoHS Status	RoHS non-compliant	ROHS3 Compliant	Difference noted

Engineering Selection Recommendations

Both SS-5H-2A-BKH and SS-5H-2A-BK are active production parts from Eaton - Electronics Division with identical electrical and mechanical specifications. The primary distinction is RoHS compliance status:

SS-5H-2A-BKH: RoHS non-compliant. Suitable for applications without RoHS regulatory requirements or legacy systems.
SS-5H-2A-BK: ROHS3 compliant. Required for applications subject to RoHS Directive 2011/65/EU or equivalent regional regulations.

Both parts carry equivalent approval certifications (CQC, cURus, KC, PSE, TUV, VDE) and are suitable for the same circuit protection applications. Selection between these parts depends solely on the regulatory compliance requirements of the end application. Inventory availability is adequate for both variants.

Frequently Asked Questions (FAQ)

Q: Can SS-5H-2A-BK be used as a direct replacement for SS-5H-2A-BKH?

A: Yes. Both parts are electrically and mechanically identical with matching current ratings (2 A), voltage ratings (300 V AC), response characteristics (Slow Blow), mounting configurations (Through Hole, Radial Box), and all critical performance parameters including breaking capacity (100 A), melting I²t (29.8), and operating temperature range (-40°C ~ 125°C).

Q: What is the difference between these two parts?

A: The only difference is RoHS compliance status. SS-5H-2A-BKH is RoHS non-compliant, while SS-5H-2A-BK is ROHS3 compliant. All electrical, mechanical, and thermal specifications are identical.

Q: Which part should I select for a new design?

A: Selection depends on regulatory requirements. If the application is subject to RoHS Directive 2011/65/EU or equivalent regulations, select SS-5H-2A-BK. For applications without RoHS requirements, either part is acceptable based on availability and cost considerations.

Q: Are the physical dimensions identical?

A: Yes. Both parts have identical dimensions of 0.335" L x 0.170" W x 0.337" H (8.50mm x 4.30mm x 8.55mm) and are packaged as Radial, Box configuration. They are mechanically interchangeable on PCBs.

Q: Do both parts have the same approval certifications?

A: Yes. Both SS-5H-2A-BKH and SS-5H-2A-BK carry identical approval certifications from CQC, cURus, KC, PSE, TUV, and VDE.

Q: What is the DC Cold Resistance specification?

A: Both parts have a DC Cold Resistance of 31.15 mOhms, indicating identical electrical resistance characteristics under cold conditions.

Q: Are both parts currently in production?

A: Yes. Both parts have Active product status. SS-5H-2A-BKH has 1119 units in stock, and SS-5H-2A-BK has 784 units in stock.

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