Introducing the IRC HSF Series MELF Resistors, designed for high surge applications with reliable surface-mount technology. Manufactured by TT Electronics, these resistors offer excellent surge handling capabilities and precise electrical performance for demanding electronic circuits.
Life Test: ±0.5% +0.01 ohm (2000 hours at 70°C intermittent)
Terminal Adhesion Strength: ±1% +0.01 ohm with no mechanical damage
Resistance to Board Bending: ±1% +0.01 ohm with no mechanical damage
Physical Dimensions
Industry Footprint
Type
Length (inches/mm)
Width/Diameter (inches/mm)
Termination Width (inches/mm)
2512
HSF-1
0.251 ± 0.010 (6.38 ± 0.25)
0.079 ± 0.006 (2.01 ± 0.15)
0.040 ± 0.010 (1.02 ± 0.25)
3612
HSF-2
0.367 ± 0.010 (9.32 ± 0.25)
0.105 ± 0.006 (2.67 ± 0.15)
0.050 ± 0.010 (1.27 ± 0.25)
Solder Reflow Profile Recommendations
Profiles are based on industry standards and IPC recommendations. For detailed profiles, please refer to the datasheet.
Surge Capability
The HSF series resistors are designed for high surge applications, capable of handling non-repetitive or low repetition rate surges with significantly increased surge ratings compared to standard resistors. For detailed surge capability data, please consult the datasheet.
Note
This product is marked as obsolete. For more detailed specifications and updates, please search the internet for the part number HSF11005R90K.
All product specifications are subject to change without notice. Please refer to the datasheet for the most current information.
Note: The product image displayed is a standard reference image. Actual product appearance may vary. For the most accurate and up-to-date representation, we recommend searching the part number online.
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{"id":10009447465277,"title":"HSF11005R90K","handle":"hsf11005r90k","description":"\u003ch3\u003eIRC MELF Resistors HSF-1-100-5R90-K\u003c\/h3\u003e\n\u003cp\u003eIntroducing the IRC HSF Series MELF Resistors, designed for high surge applications with reliable surface-mount technology. Manufactured by TT Electronics, these resistors offer excellent surge handling capabilities and precise electrical performance for demanding electronic circuits.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e HSF11005R90K\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e IRC\/TT ELECTRONICS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e MX\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit of Measure:\u003c\/strong\u003e Each (EA)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eECCN:\u003c\/strong\u003e EAR99\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Type:\u003c\/strong\u003e Surface Mount\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Category:\u003c\/strong\u003e Resistors | MELF Resistors\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDatasheet:\u003c\/strong\u003e \u003ca href=\"https:\/\/www.waldomapac.com\/upload\/parts\/datasheets\/mf-irc\/irc-hsf11005r90k.pdf\" target=\"_blank\"\u003eDownload Datasheet\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHigh surge film surface-mount MELF resistor series\u003c\/li\u003e\n\u003cli\u003eMaximum operating temperature: 150°C\u003c\/li\u003e\n\u003cli\u003eRoHS-compatible components available\u003c\/li\u003e\n\u003cli\u003eUp to triple the surge rating of rugged wirewound resistors\u003c\/li\u003e\n\u003cli\u003eReplaces costly surface-mount wirewound resistors\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eElectrical Specifications\u003c\/h3\u003e\n\u003ctable border=\"1\" cellpadding=\"5\" cellspacing=\"0\"\u003e\n\u003ctr\u003e\n\u003cth\u003eIndustry Footprint\u003c\/th\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003cth\u003eMaximum Power Rating\u003c\/th\u003e\n\u003cth\u003eWorking Voltage\u003c\/th\u003e\n\u003cth\u003eResistance Range (Ω)\u003c\/th\u003e\n\u003cth\u003eTolerance (%)\u003c\/th\u003e\n\u003cth\u003eTCR (ppm\/°C)\u003c\/th\u003e\n\u003cth\u003eProduct Category\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2512\u003c\/td\u003e\n\u003ctd\u003eHSF-1\u003c\/td\u003e\n\u003ctd\u003e1W @ 70°C\u003c\/td\u003e\n\u003ctd\u003e350V\u003c\/td\u003e\n\u003ctd\u003e5R9, 6R8, 11R, 27R, 12R, 68R, 270R\u003c\/td\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003ctd\u003e±200\u003c\/td\u003e\n\u003ctd\u003eHigh Surge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3612\u003c\/td\u003e\n\u003ctd\u003eHSF-2\u003c\/td\u003e\n\u003ctd\u003e2W @ 25°C\u003c\/td\u003e\n\u003ctd\u003e500V\u003c\/td\u003e\n\u003ctd\u003e8R2, 22R, 300R\u003c\/td\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003ctd\u003e±200\u003c\/td\u003e\n\u003ctd\u003eHigh Surge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eEnvironmental and Testing Standards\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eTemperature Coefficient: ±200ppm\/°C (standard), ±100ppm\/°C available on request\u003c\/li\u003e\n\u003cli\u003eThermal Shock: ±0.5% +0.01 ohm (MIL-R-55342H Par 4.7.3)\u003c\/li\u003e\n\u003cli\u003eLow Temperature Operation: ±0.25% +0.01 ohm (-65°C @ working voltage)\u003c\/li\u003e\n\u003cli\u003eShort Time Overload: ±0.5% +0.01 ohm (2.5 x √ P x R for 5 seconds)\u003c\/li\u003e\n\u003cli\u003eHigh Temperature Exposure: ±0.5% +0.01 ohm (+150°C for 100 hours)\u003c\/li\u003e\n\u003cli\u003eResistance to Bonding Exposure: ±0.25% +0.01 ohm (reflow soldered at 260°C for 10 seconds)\u003c\/li\u003e\n\u003cli\u003eSolderability: Minimum 95% coverage (MIL-STD-202, Method 208)\u003c\/li\u003e\n\u003cli\u003eMoisture Resistance: ±0.5% +0.01 ohm (10 cycles, 240 hours)\u003c\/li\u003e\n\u003cli\u003eLife Test: ±0.5% +0.01 ohm (2000 hours at 70°C intermittent)\u003c\/li\u003e\n\u003cli\u003eTerminal Adhesion Strength: ±1% +0.01 ohm with no mechanical damage\u003c\/li\u003e\n\u003cli\u003eResistance to Board Bending: ±1% +0.01 ohm with no mechanical damage\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003ePhysical Dimensions\u003c\/h3\u003e\n\u003ctable border=\"1\" cellpadding=\"5\" cellspacing=\"0\"\u003e\n\u003ctr\u003e\n\u003cth\u003eIndustry Footprint\u003c\/th\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003cth\u003eLength (inches\/mm)\u003c\/th\u003e\n\u003cth\u003eWidth\/Diameter (inches\/mm)\u003c\/th\u003e\n\u003cth\u003eTermination Width (inches\/mm)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2512\u003c\/td\u003e\n\u003ctd\u003eHSF-1\u003c\/td\u003e\n\u003ctd\u003e0.251 ± 0.010 (6.38 ± 0.25)\u003c\/td\u003e\n\u003ctd\u003e0.079 ± 0.006 (2.01 ± 0.15)\u003c\/td\u003e\n\u003ctd\u003e0.040 ± 0.010 (1.02 ± 0.25)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3612\u003c\/td\u003e\n\u003ctd\u003eHSF-2\u003c\/td\u003e\n\u003ctd\u003e0.367 ± 0.010 (9.32 ± 0.25)\u003c\/td\u003e\n\u003ctd\u003e0.105 ± 0.006 (2.67 ± 0.15)\u003c\/td\u003e\n\u003ctd\u003e0.050 ± 0.010 (1.27 ± 0.25)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eSolder Reflow Profile Recommendations\u003c\/h3\u003e\n\u003cp\u003eProfiles are based on industry standards and IPC recommendations. For detailed profiles, please refer to the datasheet.\u003c\/p\u003e\n\u003ch3\u003eSurge Capability\u003c\/h3\u003e\n\u003cp\u003eThe HSF series resistors are designed for high surge applications, capable of handling non-repetitive or low repetition rate surges with significantly increased surge ratings compared to standard resistors. For detailed surge capability data, please consult the datasheet.\u003c\/p\u003e\n\u003ch3\u003eNote\u003c\/h3\u003e\n\u003cp\u003eThis product is marked as obsolete. For more detailed specifications and updates, please search the internet for the part number \u003cstrong\u003eHSF11005R90K\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eAll product specifications are subject to change without notice. Please refer to the datasheet for the most current information.\u003c\/em\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNote: The product image displayed is a standard reference image. Actual product appearance may vary. For the most accurate and up-to-date representation, we recommend searching the part number online.\u003c\/strong\u003e\u003c\/p\u003e","published_at":"2025-08-08T13:44:39+05:30","created_at":"2025-08-08T13:44:39+05:30","vendor":"Waldom Electonics","type":"Resistors","tags":["IMPORT_PT2","IRC-TTEL","MELF","Resistor","STD_IMG","WLDM"],"price":12473,"price_min":12473,"price_max":12473,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":50563162898749,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"HSF11005R90K","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"HSF11005R90K","public_title":null,"options":["Default Title"],"price":12473,"weight":250,"compare_at_price":null,"inventory_management":"shopify","barcode":"HSF11005R90K","requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/thinkrobotics.com\/cdn\/shop\/files\/fbe811dc-181f-41c1-ab5a-dc3410446d1d_022c685b-264e-47d5-894f-009a2d561696.jpg?v=1754640879"],"featured_image":"\/\/thinkrobotics.com\/cdn\/shop\/files\/fbe811dc-181f-41c1-ab5a-dc3410446d1d_022c685b-264e-47d5-894f-009a2d561696.jpg?v=1754640879","options":["Title"],"media":[{"alt":null,"id":45726199480637,"position":1,"preview_image":{"aspect_ratio":1.0,"height":1024,"width":1024,"src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/fbe811dc-181f-41c1-ab5a-dc3410446d1d_022c685b-264e-47d5-894f-009a2d561696.jpg?v=1754640879"},"aspect_ratio":1.0,"height":1024,"media_type":"image","src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/fbe811dc-181f-41c1-ab5a-dc3410446d1d_022c685b-264e-47d5-894f-009a2d561696.jpg?v=1754640879","width":1024}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch3\u003eIRC MELF Resistors HSF-1-100-5R90-K\u003c\/h3\u003e\n\u003cp\u003eIntroducing the IRC HSF Series MELF Resistors, designed for high surge applications with reliable surface-mount technology. Manufactured by TT Electronics, these resistors offer excellent surge handling capabilities and precise electrical performance for demanding electronic circuits.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e HSF11005R90K\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e IRC\/TT ELECTRONICS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e MX\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit of Measure:\u003c\/strong\u003e Each (EA)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eECCN:\u003c\/strong\u003e EAR99\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Type:\u003c\/strong\u003e Surface Mount\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Category:\u003c\/strong\u003e Resistors | MELF Resistors\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDatasheet:\u003c\/strong\u003e \u003ca href=\"https:\/\/www.waldomapac.com\/upload\/parts\/datasheets\/mf-irc\/irc-hsf11005r90k.pdf\" target=\"_blank\"\u003eDownload Datasheet\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHigh surge film surface-mount MELF resistor series\u003c\/li\u003e\n\u003cli\u003eMaximum operating temperature: 150°C\u003c\/li\u003e\n\u003cli\u003eRoHS-compatible components available\u003c\/li\u003e\n\u003cli\u003eUp to triple the surge rating of rugged wirewound resistors\u003c\/li\u003e\n\u003cli\u003eReplaces costly surface-mount wirewound resistors\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eElectrical Specifications\u003c\/h3\u003e\n\u003ctable border=\"1\" cellpadding=\"5\" cellspacing=\"0\"\u003e\n\u003ctr\u003e\n\u003cth\u003eIndustry Footprint\u003c\/th\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003cth\u003eMaximum Power Rating\u003c\/th\u003e\n\u003cth\u003eWorking Voltage\u003c\/th\u003e\n\u003cth\u003eResistance Range (Ω)\u003c\/th\u003e\n\u003cth\u003eTolerance (%)\u003c\/th\u003e\n\u003cth\u003eTCR (ppm\/°C)\u003c\/th\u003e\n\u003cth\u003eProduct Category\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2512\u003c\/td\u003e\n\u003ctd\u003eHSF-1\u003c\/td\u003e\n\u003ctd\u003e1W @ 70°C\u003c\/td\u003e\n\u003ctd\u003e350V\u003c\/td\u003e\n\u003ctd\u003e5R9, 6R8, 11R, 27R, 12R, 68R, 270R\u003c\/td\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003ctd\u003e±200\u003c\/td\u003e\n\u003ctd\u003eHigh Surge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3612\u003c\/td\u003e\n\u003ctd\u003eHSF-2\u003c\/td\u003e\n\u003ctd\u003e2W @ 25°C\u003c\/td\u003e\n\u003ctd\u003e500V\u003c\/td\u003e\n\u003ctd\u003e8R2, 22R, 300R\u003c\/td\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003ctd\u003e±200\u003c\/td\u003e\n\u003ctd\u003eHigh Surge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eEnvironmental and Testing Standards\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eTemperature Coefficient: ±200ppm\/°C (standard), ±100ppm\/°C available on request\u003c\/li\u003e\n\u003cli\u003eThermal Shock: ±0.5% +0.01 ohm (MIL-R-55342H Par 4.7.3)\u003c\/li\u003e\n\u003cli\u003eLow Temperature Operation: ±0.25% +0.01 ohm (-65°C @ working voltage)\u003c\/li\u003e\n\u003cli\u003eShort Time Overload: ±0.5% +0.01 ohm (2.5 x √ P x R for 5 seconds)\u003c\/li\u003e\n\u003cli\u003eHigh Temperature Exposure: ±0.5% +0.01 ohm (+150°C for 100 hours)\u003c\/li\u003e\n\u003cli\u003eResistance to Bonding Exposure: ±0.25% +0.01 ohm (reflow soldered at 260°C for 10 seconds)\u003c\/li\u003e\n\u003cli\u003eSolderability: Minimum 95% coverage (MIL-STD-202, Method 208)\u003c\/li\u003e\n\u003cli\u003eMoisture Resistance: ±0.5% +0.01 ohm (10 cycles, 240 hours)\u003c\/li\u003e\n\u003cli\u003eLife Test: ±0.5% +0.01 ohm (2000 hours at 70°C intermittent)\u003c\/li\u003e\n\u003cli\u003eTerminal Adhesion Strength: ±1% +0.01 ohm with no mechanical damage\u003c\/li\u003e\n\u003cli\u003eResistance to Board Bending: ±1% +0.01 ohm with no mechanical damage\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003ePhysical Dimensions\u003c\/h3\u003e\n\u003ctable border=\"1\" cellpadding=\"5\" cellspacing=\"0\"\u003e\n\u003ctr\u003e\n\u003cth\u003eIndustry Footprint\u003c\/th\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003cth\u003eLength (inches\/mm)\u003c\/th\u003e\n\u003cth\u003eWidth\/Diameter (inches\/mm)\u003c\/th\u003e\n\u003cth\u003eTermination Width (inches\/mm)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2512\u003c\/td\u003e\n\u003ctd\u003eHSF-1\u003c\/td\u003e\n\u003ctd\u003e0.251 ± 0.010 (6.38 ± 0.25)\u003c\/td\u003e\n\u003ctd\u003e0.079 ± 0.006 (2.01 ± 0.15)\u003c\/td\u003e\n\u003ctd\u003e0.040 ± 0.010 (1.02 ± 0.25)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3612\u003c\/td\u003e\n\u003ctd\u003eHSF-2\u003c\/td\u003e\n\u003ctd\u003e0.367 ± 0.010 (9.32 ± 0.25)\u003c\/td\u003e\n\u003ctd\u003e0.105 ± 0.006 (2.67 ± 0.15)\u003c\/td\u003e\n\u003ctd\u003e0.050 ± 0.010 (1.27 ± 0.25)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eSolder Reflow Profile Recommendations\u003c\/h3\u003e\n\u003cp\u003eProfiles are based on industry standards and IPC recommendations. For detailed profiles, please refer to the datasheet.\u003c\/p\u003e\n\u003ch3\u003eSurge Capability\u003c\/h3\u003e\n\u003cp\u003eThe HSF series resistors are designed for high surge applications, capable of handling non-repetitive or low repetition rate surges with significantly increased surge ratings compared to standard resistors. For detailed surge capability data, please consult the datasheet.\u003c\/p\u003e\n\u003ch3\u003eNote\u003c\/h3\u003e\n\u003cp\u003eThis product is marked as obsolete. For more detailed specifications and updates, please search the internet for the part number \u003cstrong\u003eHSF11005R90K\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eAll product specifications are subject to change without notice. Please refer to the datasheet for the most current information.\u003c\/em\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNote: The product image displayed is a standard reference image. Actual product appearance may vary. For the most accurate and up-to-date representation, we recommend searching the part number online.\u003c\/strong\u003e\u003c\/p\u003e"}
