CIS10P700AC Ferrite Bead 70 Ohm 0603 Equivalent & Substitute Parts

Part Overview

The CIS10P700AC is a 70 Ohm power line ferrite bead manufactured by Samsung Electro-Mechanics in 0603 (1608 Metric) surface mount package. This component is designed for electromagnetic interference (EMI) suppression in single-line power applications with a maximum current rating of 4A and DC resistance of 20mOhm. The part is currently obsolete, making equivalent and substitute parts necessary for ongoing design support and production requirements. Active alternatives from multiple manufacturers provide identical or compatible electrical and mechanical specifications.

Key Parameters

Parameter	Value
Impedance @ Frequency	70 Ohms @ 100 MHz
Current Rating (Max)	4A
DC Resistance (DCR) (Max)	20mOhm
Package / Case	0603 (1608 Metric)
Operating Temperature Range	-55°C ~ 125°C
Mounting Type	Surface Mount
Number of Lines	1
Filter Type	Power Line
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the CIS10P700AC is determined by strict equivalence across the following critical parameters:

Primary Equivalence Criteria:

Impedance @ 100 MHz: 70 Ohms (exact match required for electrical performance)
Current Rating: 4A minimum
DC Resistance: 20mOhm maximum
Package: 0603 (1608 Metric) surface mount
Operating Temperature: -55°C ~ 125°C minimum range
Number of Lines: Single line (1LN)
Filter Type: Power Line designation

Secondary Compatibility Criteria:

RoHS3 Compliance
MSL Level 1 (Unlimited moisture sensitivity)
REACH Unaffected status

Parts are grouped into two categories:

Direct Equivalents (70 Ohm @ 100 MHz): BLM18SG700TN1D, ACML-0603U-700-T, BBUP00160805700Y00, UPZ1608U700-4R0TF, BBUP00160808700Y00

Parametric Equivalents (60 Ohm @ 100 MHz with enhanced current or reduced DCR): 74279228600 (Würth Elektronik, 5.1A / 15mOhm), BBUP00160805600Y00 (Pulse Electronics, 4A / 20mOhm), BBUP00160808600Y00 (Pulse Electronics, 4A / 20mOhm), HFZ 1608PF-600T40 (TAI-TECH, 4A / 20mOhm)

Parametric equivalents with 60 Ohm impedance are suitable only when circuit design permits lower impedance values and the application does not require the specific 70 Ohm characteristic.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Impedance @ 100 MHz	Current Rating (Max)	DCR (Max)	Package	Height (Max)	Product Status	Inventory
CIS10P700AC	Samsung Electro-Mechanics	70 Ohms	4A	20mOhm	0603 (1608 Metric)	0.037" (0.95mm)	Obsolete	957 Pcs
BLM18SG700TN1D	Murata Electronics	70 Ohms	4A	20mOhm	0603 (1608 Metric)	0.026" (0.65mm)	Active	20045 Pcs
ACML-0603U-700-T	Abracon LLC	70 Ohms	4A	20mOhm	0603 (1608 Metric)	0.037" (0.95mm)	Active	1505 Pcs
BBUP00160805700Y00	Pulse Electronics	70 Ohms	4A	20mOhm	0603 (1608 Metric)	0.026" (0.65mm)	Active	60877 Pcs
UPZ1608U700-4R0TF	Shenzhen Sunlord Electronics	70 Ohms	4A	20mOhm	0603 (1608 Metric)	0.037" (0.95mm)	Active	4000 Pcs
BBUP00160808700Y00	Pulse Electronics	70 Ohms	4A	20mOhm	0603 (1608 Metric)	0.037" (0.95mm)	Active	75083 Pcs
74279228600	Würth Elektronik	60 Ohms	5.1A	15mOhm	0603 (1608 Metric)	0.039" (1.00mm)	Active	1240 Pcs
BBUP00160805600Y00	Pulse Electronics	60 Ohms	4A	20mOhm	0603 (1608 Metric)	0.026" (0.65mm)	Active	673 Pcs
BBUP00160808600Y00	Pulse Electronics	60 Ohms	4A	20mOhm	0603 (1608 Metric)	0.037" (0.95mm)	Active	12516 Pcs
HFZ 1608PF-600T40	TAI-TECH Advanced Electronics	60 Ohms	4A	20mOhm	0603 (1608 Metric)	0.037" (0.95mm)	Active	9088 Pcs

Engineering Selection Recommendations

For Direct Replacement (70 Ohm @ 100 MHz):

Select from BLM18SG700TN1D, BBUP00160805700Y00, BBUP00160808700Y00, ACML-0603U-700-T, or UPZ1608U700-4R0TF. All maintain identical electrical specifications to the obsolete CIS10P700AC. All substitute parts are ROHS3 compliant, MSL Level 1, and REACH unaffected, matching the original part's compliance profile.

BLM18SG700TN1D (Murata Electronics) and BBUP00160805700Y00 (Pulse Electronics) offer the lowest profile height at 0.026" (0.65mm), suitable for space-constrained applications. BBUP00160805700Y00 provides the highest inventory availability at 60,877 pieces.

ACML-0603U-700-T (Abracon LLC) and BBUP00160808700Y00 (Pulse Electronics) maintain the original 0.037" (0.95mm) height profile, ensuring mechanical compatibility with existing PCB layouts designed for the CIS10P700AC.

For Parametric Substitution (60 Ohm @ 100 MHz):

Use only when circuit design permits lower impedance values. The Würth Elektronik 74279228600 offers enhanced performance with 5.1A current rating and 15mOhm DCR, providing margin for higher-current applications. Pulse Electronics BBUP00160805600Y00 and BBUP00160808600Y00 maintain 4A current rating and 20mOhm DCR, directly compatible with current specifications while offering 60 Ohm impedance.

All active substitute parts carry current product status, ensuring long-term availability and manufacturing support.

Frequently Asked Questions (FAQ)

Q: Can I use a 60 Ohm ferrite bead as a direct replacement for the 70 Ohm CIS10P700AC?

A: No. The 60 Ohm impedance value is a different electrical characteristic. Use 60 Ohm alternatives only if circuit design analysis confirms that lower impedance is acceptable for the application. The impedance value directly affects EMI filtering performance.

Q: What is the difference between the various 70 Ohm substitute parts?

A: All 70 Ohm alternatives (BLM18SG700TN1D, BBUP00160805700Y00, BBUP00160808700Y00, ACML-0603U-700-T, UPZ1608U700-4R0TF) are electrically identical. Primary differences are manufacturer, height profile, and inventory availability. BLM18SG700TN1D and BBUP00160805700Y00 are lower profile (0.026" vs 0.037"), which may affect PCB layout compatibility.

Q: Are all substitute parts RoHS compliant?

A: Yes. All listed substitute parts are ROHS3 compliant and REACH unaffected, matching the original CIS10P700AC compliance status.

Q: What is the significance of the 0603 (1608 Metric) package designation?

A: This is the standard surface mount package size for all listed parts. The package dimensions are 0.063" L x 0.032" W (1.60mm x 0.80mm). All substitute parts use this identical package, ensuring PCB footprint compatibility.

Q: Does height variation between substitute parts matter?

A: Height variation (0.026" to 0.039") may affect PCB layout if components are mounted in close proximity to other tall components or if the design has height constraints. Verify height compatibility with your specific PCB assembly requirements.

Q: Which substitute part has the best inventory availability?

A: BBUP00160808700Y00 (Pulse Electronics) offers the highest inventory at 75,083 pieces, followed by BBUP00160805700Y00 at 60,877 pieces. Both are 70 Ohm direct equivalents.

Q: Can I mix different manufacturers' ferrite beads in the same design?

A: Yes. All listed 70 Ohm alternatives meet identical electrical and mechanical specifications. Mixing manufacturers is acceptable from an engineering standpoint, though single-source procurement is typically preferred for supply chain consistency.

Q: What does MSL Level 1 (Unlimited) mean?

A: MSL Level 1 indicates unlimited shelf life without moisture baking requirements. These components do not require special moisture control during storage or handling, simplifying logistics and inventory management.

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