THAS171M350AD1C Equivalent & Substitute Parts

Part Overview

The THAS171M350AD1C is a 170 µF, 350 V aluminum electrolytic capacitor manufactured by Cornell Dubilier Electronics (CDE) in FlatPack configuration. This component is designed for general-purpose applications requiring stable capacitance performance across extended operating temperature ranges. The part maintains Active product status with full RoHS3 compliance and REACH unaffected designation. Substitute parts are identified when equivalent electrical and mechanical parameters are required for design flexibility, inventory management, or supply chain continuity.

Key Parameters

Parameter	Value	Unit
Capacitance	170	µF
Tolerance	±20%	—
Voltage - Rated	350	V
ESR @ 120 Hz	1.12	Ohm
Lifetime @ 105°C	5000	Hrs
Operating Temperature Range	-55 to 105	°C
Ripple Current @ 120 Hz	800	mA
Ripple Current @ 20 kHz	1.36	A
Lead Spacing	0.394 (10.00)	" (mm)
Dimensions	2.618 L × 1.000 W (66.50 × 25.40)	" (mm)
Height - Seated (Max)	0.366 (9.30)	" (mm)
Package Type	FlatPack	—
Mounting Type	Through Hole	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the THAS171M350AD1C is determined by strict equivalence across the following critical parameters:

Electrical Parameters (Must Match Exactly):

Capacitance: 170 µF
Voltage Rating: 350 V
Tolerance: ±20%
ESR: 1.12 Ohm @ 120 Hz
Lifetime: 5000 Hrs @ 105°C
Operating Temperature Range: -55°C to 105°C
Ripple Current @ 120 Hz: 800 mA
Ripple Current @ 20 kHz: 1.36 A

Mechanical Parameters (Must Match Exactly):

Package Type: FlatPack
Mounting Type: Through Hole
Lead Spacing: 0.394" (10.00 mm)
Dimensions: 2.618" L × 1.000" W (66.50 mm × 25.40 mm)
Height - Seated (Max): 0.366" (9.30 mm)

Compliance Parameters (Must Match Exactly):

RoHS Status: ROHS3 Compliant
REACH Status: REACH Unaffected
Product Status: Active

The THAS171M350AD0C meets all substitution criteria and is classified as a parametric equivalent.

Parameter Comparison

Parameter	THAS171M350AD1C	THAS171M350AD0C	Match
Capacitance	170 µF	170 µF	✓
Tolerance	±20%	±20%	✓
Voltage - Rated	350 V	350 V	✓
ESR @ 120 Hz	1.12 Ohm	1.12 Ohm	✓
Lifetime @ 105°C	5000 Hrs	5000 Hrs	✓
Operating Temperature	-55°C ~ 105°C	-55°C ~ 105°C	✓
Ripple Current @ 120 Hz	800 mA	800 mA	✓
Ripple Current @ 20 kHz	1.36 A	1.36 A	✓
Lead Spacing	0.394" (10.00 mm)	0.394" (10.00 mm)	✓
Dimensions	2.618" L × 1.000" W (66.50 × 25.40 mm)	2.618" L × 1.000" W (66.50 × 25.40 mm)	✓
Height - Seated (Max)	0.366" (9.30 mm)	0.366" (9.30 mm)	✓
Package Type	FlatPack	FlatPack	✓
Mounting Type	Through Hole	Through Hole	✓
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	✓
REACH Status	REACH Unaffected	REACH Unaffected	✓
Product Status	Active	Active	✓

Engineering Selection Recommendations

Both THAS171M350AD1C and THAS171M350AD0C are Active products with identical electrical, mechanical, and compliance specifications. Selection between these parts is based on inventory availability and supply chain requirements rather than technical differentiation.

THAS171M350AD1C: 769 pieces in stock. Suitable for immediate procurement when standard inventory allocation is required.

THAS171M350AD0C: 1151 pieces in stock. Suitable for selection when higher inventory availability is prioritized or for bulk procurement scenarios.

Both parts maintain full RoHS3 compliance and REACH unaffected status, meeting regulatory requirements for industrial and commercial applications. No technical performance differential exists between the two part numbers.

Frequently Asked Questions (FAQ)

Q: Can THAS171M350AD0C be used as a direct replacement for THAS171M350AD1C?

A: Yes. Both parts are parametric equivalents with identical electrical specifications (170 µF, 350 V, ±20% tolerance, 1.12 Ohm ESR @ 120 Hz), mechanical dimensions (FlatPack, 2.618" L × 1.000" W, 10.00 mm lead spacing), and compliance certifications (RoHS3, REACH unaffected). Direct substitution is supported without circuit modification.

Q: Are there any differences in performance between these two part numbers?

A: No. Both parts deliver identical performance across all specified parameters: capacitance, voltage rating, ESR, ripple current handling, operating temperature range, and lifetime rating at 105°C.

Q: What is the difference between THAS171M350AD1C and THAS171M350AD0C?

A: The parts differ only in manufacturing batch designation (suffix "1C" versus "0C"). All electrical, mechanical, and compliance parameters are identical. Inventory levels differ: THAS171M350AD1C has 769 pieces available; THAS171M350AD0C has 1151 pieces available.

Q: Can these capacitors be used in high-frequency applications?

A: Yes. Both parts support high-frequency ripple current operation at 1.36 A @ 20 kHz, in addition to low-frequency operation at 800 mA @ 120 Hz.

Q: Are these parts suitable for through-hole PCB assembly?

A: Yes. Both parts are configured for through-hole mounting with 0.394" (10.00 mm) lead spacing and FlatPack package type, compatible with standard through-hole PCB assembly processes.

Q: What is the operating temperature range for these capacitors?

A: Both THAS171M350AD1C and THAS171M350AD0C operate across -55°C to 105°C with a rated lifetime of 5000 hours at the maximum temperature of 105°C.

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