B37872K2153K062 Equivalent & Substitute Parts

Part Overview

The B37872K2153K062 is a 0.015 µF ±10% 200V ceramic capacitor in 1206 (3216 Metric) package with X7R temperature coefficient, manufactured by EPCOS - TDK Electronics. This part is classified as obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications. The X7R dielectric provides stable capacitance across the operating temperature range of -55°C to 125°C, suitable for general-purpose bypass and decoupling applications.

Key Parameters

Parameter	Value
Capacitance	0.015 µF
Tolerance	±10%
Voltage Rating	200V
Temperature Coefficient	X7R
Operating Temperature Range	-55°C to 125°C
Package / Case	1206 (3216 Metric)
Mounting Type	Surface Mount, MLCC
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the B37872K2153K062 is determined by strict electrical and mechanical compatibility:

Primary Substitution Criteria:

Capacitance: 0.015 µF (exact match required)
Voltage Rating: 200V minimum (equal or higher acceptable)
Temperature Coefficient: X7R (required for thermal stability)
Package: 1206 (3216 Metric) (physical compatibility required)
Tolerance: ±10% or tighter (±5% acceptable as upgrade)
Operating Temperature: -55°C to 125°C (minimum requirement)
Mounting: Surface Mount, MLCC (required)
RoHS3 Compliance: Required for regulatory compliance

Direct Substitutes (200V Rating):

C1206C153K2RAC7800 (KEMET) - Identical electrical specifications, ±10% tolerance, 200V
KGM31DR72D153KU (KYOCERA AVX) - Identical electrical specifications, ±10% tolerance, 200V

Upgrade Substitutes (Higher Voltage or Tighter Tolerance):

C1206C153J2RAC7800 (KEMET) - ±5% tolerance upgrade, 200V rating
KGM31DR72D153JU (KYOCERA AVX) - ±5% tolerance upgrade, 200V rating
C1206C153JARAC7800 (KEMET) - 250V voltage upgrade, ±5% tolerance
C1206C153KARAC7800 (KEMET) - 250V voltage upgrade, ±10% tolerance
GRM31BR72E153KW01L (Murata Electronics) - 250V voltage upgrade, ±10% tolerance
C3216X7R2E153K115AA (TDK Corporation) - 250V voltage upgrade, ±10% tolerance
C3216X7R2J153K130AA (TDK Corporation) - 630V voltage upgrade, ±10% tolerance
CL31B153KHFSFNE (Samsung Electro-Mechanics) - 630V voltage upgrade, ±10% tolerance, soft termination feature

Parameter Comparison

Manufacturer Part Number	Manufacturer	Capacitance	Tolerance	Voltage Rating	Temperature Coefficient	Package	Thickness (Max)	Product Status	RoHS3
B37872K2153K062	EPCOS - TDK Electronics	0.015 µF	±10%	200V	X7R	1206 (3216 Metric)	0.047" (1.20mm)	Obsolete	Compliant
C1206C153K2RAC7800	KEMET	0.015 µF	±10%	200V	X7R	1206 (3216 Metric)	0.035" (0.88mm)	Active	Compliant
KGM31DR72D153KU	KYOCERA AVX	0.015 µF	±10%	200V	X7R	1206 (3216 Metric)	0.057" (1.45mm)	Active	Compliant
C1206C153J2RAC7800	KEMET	0.015 µF	±5%	200V	X7R	1206 (3216 Metric)	0.035" (0.88mm)	Active	Compliant
KGM31DR72D153JU	KYOCERA AVX	0.015 µF	±5%	200V	X7R	1206 (3216 Metric)	0.057" (1.45mm)	Active	Compliant
C1206C153JARAC7800	KEMET	0.015 µF	±5%	250V	X7R	1206 (3216 Metric)	0.035" (0.88mm)	Active	Compliant
C1206C153KARAC7800	KEMET	0.015 µF	±10%	250V	X7R	1206 (3216 Metric)	0.035" (0.88mm)	Active	Compliant
GRM31BR72E153KW01L	Murata Electronics	0.015 µF	±10%	250V	X7R	1206 (3216 Metric)	0.049" (1.25mm)	Not For New Designs	Compliant
C3216X7R2E153K115AA	TDK Corporation	0.015 µF	±10%	250V	X7R	1206 (3216 Metric)	0.051" (1.30mm)	Not For New Designs	Compliant
C3216X7R2J153K130AA	TDK Corporation	0.015 µF	±10%	630V	X7R	1206 (3216 Metric)	0.055" (1.40mm)	Not For New Designs	Compliant
CL31B153KHFSFNE	Samsung Electro-Mechanics	0.015 µF	±10%	630V	X7R	1206 (3216 Metric)	0.055" (1.40mm)	Active	Compliant

Engineering Selection Recommendations

For Direct Replacement (Identical Electrical Performance): Select C1206C153K2RAC7800 (KEMET) or KGM31DR72D153KU (KYOCERA AVX). Both parts maintain the original 200V rating and ±10% tolerance. KEMET's part offers reduced thickness (0.035" vs. 0.047"), which may provide PCB layout advantages. KYOCERA AVX's part maintains closer dimensional similarity to the original. Both manufacturers are active in production with established supply chains.

For Tolerance Upgrade (±5% Specification): Select C1206C153J2RAC7800 (KEMET) or KGM31DR72D153JU (KYOCERA AVX) when tighter capacitance tolerance is required. These parts maintain 200V rating while improving tolerance specification. Both are actively produced.

For Voltage Margin Enhancement (250V Rating): Select C1206C153KARAC7800 (KEMET) or GRM31BR72E153KW01L (Murata Electronics) when additional voltage headroom is beneficial. Both maintain ±10% tolerance with 250V rating. KEMET's part is actively produced; Murata's part is marked "Not For New Designs" but remains available.

For High-Voltage Applications (630V Rating): Select CL31B153KHFSFNE (Samsung Electro-Mechanics) for applications requiring maximum voltage margin. This part is actively produced and includes soft termination feature for flex-sensitive applications. Alternatively, C3216X7R2J153K130AA (TDK Corporation) provides 630V rating but is marked "Not For New Designs."

All recommended substitutes maintain ROHS3 compliance, MSL 1 rating, and X7R temperature coefficient stability across -55°C to 125°C operating range.

Frequently Asked Questions (FAQ)

Q: Can I use a 250V-rated capacitor in place of the 200V original? A: Yes. Higher voltage ratings provide additional safety margin and are electrically compatible. The capacitor will function identically in circuits designed for 200V operation. Voltage rating indicates the maximum safe operating voltage; using a higher-rated component does not degrade performance.

Q: What is the difference between ±10% and ±5% tolerance? A: Tolerance specifies the allowable deviation from the nominal 0.015 µF capacitance value. ±10% allows 0.0135–0.0165 µF; ±5% allows 0.01425–0.01575 µF. Tighter tolerance (±5%) is beneficial for precision circuits but not required for general-purpose applications. The original part uses ±10%.

Q: Are there physical size differences between substitutes? A: All substitutes use the 1206 (3216 Metric) package with identical length (0.126") and width (0.063"). Thickness varies slightly: KEMET parts measure 0.035" (0.88mm), while KYOCERA AVX measures 0.057" (1.45mm). Verify PCB clearance if space is constrained. The original EPCOS part measures 0.047" (1.20mm).

Q: What does "Not For New Designs" product status mean? A: This designation indicates the manufacturer is not recommending the part for new circuit designs, though existing inventory remains available. Parts with "Active" status are preferred for new designs due to ongoing manufacturer support and supply continuity. For obsolete original parts, "Active" substitutes are recommended.

Q: Can I mix different manufacturers' parts in the same circuit? A: Yes. All recommended substitutes meet identical electrical specifications (0.015 µF, X7R, -55°C to 125°C). Mixing manufacturers is acceptable from an electrical standpoint. For production consistency, standardizing on a single manufacturer is preferred.

Q: What is X7R temperature coefficient? A: X7R specifies the capacitance change over temperature. X7R maintains capacitance within ±15% across the -55°C to 125°C operating range. This stability is required for the application and is maintained across all substitutes.

Q: Is RoHS3 compliance important? A: Yes. RoHS3 compliance is mandatory for products sold in regulated markets. All recommended substitutes are RoHS3 compliant, matching the original part's regulatory status.

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