RK73B1JTTD181J KOA Speer Resistor (Resistor Chip) In Stock

RK73B1JTTD181J is a KOA Speer thick film SMD resistor for precision biasing. Key specs include ±5%, 0.125W, ±200ppm/°C and -55°C to 155°C. From quoted sourcing, in stock options and worldwide shipping support.

ACTIVEResistorVerified Jul 2026
Package / Visual Reference
RK73B1JTTD181JResistor Chip
Quick Facts
Manufacturer
KOA Speer
Package
Resistor Chip
Pin Count
2
Lifecycle
ACTIVE
Category
Resistor
Price
From $0.0042(MOQ 1)
Temp Range
-55.0°C to 155.0°C
RoHS
Compliant
Lead Time
3–7 business days
Shipping
DHL Express · Worldwide

Key Features

  • ±5%, 0.125W, ±200ppm/°C and -55°C to 155°C for precision biasing designs
  • 0603 Chip Resistor footprint for compact automated SMT assembly
  • 2 pins configuration supports straightforward schematic review and sourcing checks
  • -55°C to 155°C operating range for qualified production environments
  • KOA Speer traceability for approved vendor lists and incoming inspection

Applications

Used in voltage dividers, pull networks, current limiting, feedback loops, and gain-setting circuits where ±5% or comparable tolerance data must stay traceable. Common purchasing checks include matching RK73B1JTTD181J to ±5%, 0.125W, ±200ppm/°C and -55°C to 155°C, confirming 0603 Chip Resistor requirements, and keeping manufacturer traceability with the approved BOM.

Specifications

Pbfree CodeYes
Reach Compliance CodeCompliant
YTEOL12
ConstructionRectangular
JESD-609 Codee3
Mounting FeatureSURFACE MOUNT
Package Height0.45mm
Package Length1.6mm
Package ShapeRECTANGULAR PACKAGE
Package StyleSMT
Package Width0.8mm
Packing MethodTR, Punched Paper, 7 Inch
Rated Power Dissipation (P)0.125W
Rated Temperature70°C
Reference StandardAEC-Q200, IEC60115-8
Resistance180Ω
Resistor TypeFIXED RESISTOR
Size Code0603
Surface MountYES
TechnologyMETAL GLAZE/THICK FILM
Temperature Coefficient200ppm/°C
Terminal FinishMATTE TIN OVER NICKEL
Terminal ShapeWRAPAROUND
Tolerance5%
Working Voltage75V
PackageResistor Chip

Compliance & Regulatory

RoHS StatusCompliant
Lead-FreeYes (Pb-Free)
ECCNEAR99
HTS Code8533.21.00.30
Country of OriginJapan, Mainland China, Malaysia

Datasheet

RK73B1JTTD181J Datasheet Download

Official datasheet from KOA Speer

Alternate & Equivalent Parts

No known alternates. Submit an RFQ and our team can suggest alternatives.

Frequently Asked Questions

Which designs benefit from RK73B1JTTD181J's ±5% rating?

RK73B1JTTD181J fits precision biasing and related production circuits where designers need thick film SMD resistor behavior with ±5%, 0.125W, ±200ppm/°C and -55°C to 155°C. The 0603 Chip Resistor format and 2 pins configuration support compact automated assembly.

How should engineers review the 0603 Chip Resistor footprint before approving RK73B1JTTD181J?

Check the recommended land pattern, solder process, and clearance for 0603 Chip Resistor before release. Its 2 pins configuration and -55°C to 155°C rating make it practical for dense SMT boards.

What procurement checks matter before sourcing RK73B1JTTD181J for production builds?

Confirm KOA Speer traceability, lifecycle status, and lot consistency before release. The buyer should match the quoted part to ±5%, 0.125W, ±200ppm/°C and -55°C to 155°C and verify 2 pins packaging requirements.

Related Guides

Why Buy from FindMyChip

Authorized Source
Verified supply chain with full traceability & inspection
Competitive Pricing
Factory-direct from China distributors, low MOQ
Fast Shipping
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Quality Guaranteed
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About KOA Speer

KOA Speer is a leading electronic component manufacturer. FindMyChip sources KOA Speer ICs directly from authorized China distributors, offering competitive pricing and reliable stock.

AvailabilityIn Stock
Reference Price (USD)
From $0.0042
Buy from 1pc · Factory-direct pricing
Qty.Unit PriceExt. Price
1+$0.0112$0.01
250+$0.0077$1.93
447+$0.0070$3.13
500+$0.0060$3.00
1000+$0.0050$5.00
2858+$0.0042$12.00
pcs
Unit price: $0.0112 · Total: $0.01

In Stock · 24h Response · Worldwide Shipping

Lead Time3-7 business days
MOQFrom 1 piece
ShippingDHL / FedEx / UPS
OriginChina (Authorized)

Response within 24 hours · Worldwide shipping

We've been using FindMyChip for 2 years. Pricing is consistently 20-30% below Mouser/DigiKey for volume orders.

SK
Sarah Kim
VP Engineering, NovaBit Electronics, South Korea