Panasonic EW / Aromat S4EB-12V - General Purpose Relay 4PST 4A 12V
Upgrade your electronic control systems with the high-reliability Panasonic EW / Aromat S4EB-12V general purpose relay. Designed for versatile applications, this relay features a compact form factor combined with advanced electromagnetic circuit technology to ensure high sensitivity, durability, and broad control capabilities.
High Sensitivity & Compact Design: Utilizes polarized electromagnetic circuits with a 4-gap balanced armature for efficient control, allowing direct drive by driver chips.
Vibration & Shock Resistance: Employs 4G-BA technology for enhanced durability under harsh conditions.
High Reliability & Long Life: Twin contact design minimizes contact bounce, ensuring consistent operation over extended cycles.
Wide Control Range: Gold-clad silver alloy contacts support microcurrents (100 µA, 100 mV DC) up to 4A, 250V AC.
Multiple Contact Formations & Latching Options: Available in various configurations including 2a2b, 3a1b, 4a, with single and dual coil latching types for circuit memory applications.
Standard & Custom Mounting: DIL terminal arrays compatible with common PCB patterns; sockets available for easy installation.
Technical Specifications
Contact Arrangement
Nominal Coil Voltage
Operating Function
Contact Rating
Expected Life
2 Form A / 2 Form B
3V, 5V, 6V, 12V, 24V, 48V DC
Single side stable (Nil), 2 coil latching (L, L2)
4A 250V AC, 3A 30V DC
High cycle life with minimal contact bounce
3 Form A / 1 Form B
Same as above
Same as above
Same as above
Expected to meet industrial reliability standards
4 Form A
Same as above
Same as above
Same as above
Long operational lifespan
Electrical & Mechanical Characteristics
Item
Specifications
Contact Resistance (Initial)
Max. 50 mΩ (at 6V DC, 1A)
Insulation Resistance
Min. 10,000 MΩ (at 500V DC)
Breakdown Voltage
Between open contacts: 750 Vrms for 1 min.
Operate Time
Max. 15 ms (at nominal coil voltage)
Release Time
Max. 10 ms (without diode)
Shock Resistance
Functional: Min. 490 m/s²; Destructive: Min. 980 m/s²
Vibration Resistance
Functional: 10-55 Hz at 3 mm amplitude; Destructive: 10-55 Hz at 4 mm amplitude
Operating Temperature
-55°C to +65°C
Dimensions & Mounting
External dimensions and PCB mounting details are available in the datasheet. Download CAD data for precise measurements and mounting configurations.
Applications
Telecommunications equipment
Data processing systems
Facsimile machines
Alarm systems
Measurement equipment
For additional cautions and detailed usage instructions, please refer to the Cautions for Use.
Note: Datasheet was not processed, please search the internet for the part number for more details.
Use left/right arrows to navigate the slideshow or swipe left/right if using a mobile device
Choosing a selection results in a full page refresh.
Press the space key then arrow keys to make a selection.
Shopping Cart
{"id":10022326567229,"title":"S4EB-12V","handle":"s4eb-12v","description":"\u003ch3\u003ePanasonic EW \/ Aromat S4EB-12V - General Purpose Relay 4PST 4A 12V\u003c\/h3\u003e\n\u003cp\u003eUpgrade your electronic control systems with the high-reliability Panasonic EW \/ Aromat S4EB-12V general purpose relay. Designed for versatile applications, this relay features a compact form factor combined with advanced electromagnetic circuit technology to ensure high sensitivity, durability, and broad control capabilities.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e S4EB-12V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e PANASONIC EW \/ AROMAT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e Japan (JP)\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 BOX\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDatasheet:\u003c\/strong\u003e \u003ca href=\"https:\/\/4donline.ihs.com\/images\/VipMasterIC\/IC\/ARMC\/ARMCS01846\/ARMCS01846-1.pdf?hkey=82A29B72BDB3BD67C626B77C2F032848\" target=\"_blank\" rel=\"noopener noreferrer\"\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\u003e\n\u003cstrong\u003eHigh Sensitivity \u0026amp; Compact Design:\u003c\/strong\u003e Utilizes polarized electromagnetic circuits with a 4-gap balanced armature for efficient control, allowing direct drive by driver chips.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVibration \u0026amp; Shock Resistance:\u003c\/strong\u003e Employs 4G-BA technology for enhanced durability under harsh conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Reliability \u0026amp; Long Life:\u003c\/strong\u003e Twin contact design minimizes contact bounce, ensuring consistent operation over extended cycles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide Control Range:\u003c\/strong\u003e Gold-clad silver alloy contacts support microcurrents (100 µA, 100 mV DC) up to 4A, 250V AC.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMultiple Contact Formations \u0026amp; Latching Options:\u003c\/strong\u003e Available in various configurations including 2a2b, 3a1b, 4a, with single and dual coil latching types for circuit memory applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard \u0026amp; Custom Mounting:\u003c\/strong\u003e DIL terminal arrays compatible with common PCB patterns; sockets available for easy installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eContact Arrangement\u003c\/th\u003e\n\u003cth\u003eNominal Coil Voltage\u003c\/th\u003e\n\u003cth\u003eOperating Function\u003c\/th\u003e\n\u003cth\u003eContact Rating\u003c\/th\u003e\n\u003cth\u003eExpected Life\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2 Form A \/ 2 Form B\u003c\/td\u003e\n\u003ctd\u003e3V, 5V, 6V, 12V, 24V, 48V DC\u003c\/td\u003e\n\u003ctd\u003eSingle side stable (Nil), 2 coil latching (L, L2)\u003c\/td\u003e\n\u003ctd\u003e4A 250V AC, 3A 30V DC\u003c\/td\u003e\n\u003ctd\u003eHigh cycle life with minimal contact bounce\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3 Form A \/ 1 Form B\u003c\/td\u003e\n\u003ctd\u003eSame as above\u003c\/td\u003e\n\u003ctd\u003eSame as above\u003c\/td\u003e\n\u003ctd\u003eSame as above\u003c\/td\u003e\n\u003ctd\u003eExpected to meet industrial reliability standards\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4 Form A\u003c\/td\u003e\n\u003ctd\u003eSame as above\u003c\/td\u003e\n\u003ctd\u003eSame as above\u003c\/td\u003e\n\u003ctd\u003eSame as above\u003c\/td\u003e\n\u003ctd\u003eLong operational lifespan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eElectrical \u0026amp; Mechanical Characteristics\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eItem\u003c\/th\u003e\n\u003cth\u003eSpecifications\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eContact Resistance (Initial)\u003c\/td\u003e\n\u003ctd\u003eMax. 50 mΩ (at 6V DC, 1A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInsulation Resistance\u003c\/td\u003e\n\u003ctd\u003eMin. 10,000 MΩ (at 500V DC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBreakdown Voltage\u003c\/td\u003e\n\u003ctd\u003eBetween open contacts: 750 Vrms for 1 min.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperate Time\u003c\/td\u003e\n\u003ctd\u003eMax. 15 ms (at nominal coil voltage)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelease Time\u003c\/td\u003e\n\u003ctd\u003eMax. 10 ms (without diode)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShock Resistance\u003c\/td\u003e\n\u003ctd\u003eFunctional: Min. 490 m\/s²; Destructive: Min. 980 m\/s²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVibration Resistance\u003c\/td\u003e\n\u003ctd\u003eFunctional: 10-55 Hz at 3 mm amplitude; Destructive: 10-55 Hz at 4 mm amplitude\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-55°C to +65°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eDimensions \u0026amp; Mounting\u003c\/h3\u003e\n\u003cp\u003eExternal dimensions and PCB mounting details are available in the datasheet. Download CAD data for precise measurements and mounting configurations.\u003c\/p\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eTelecommunications equipment\u003c\/li\u003e\n\u003cli\u003eData processing systems\u003c\/li\u003e\n\u003cli\u003eFacsimile machines\u003c\/li\u003e\n\u003cli\u003eAlarm systems\u003c\/li\u003e\n\u003cli\u003eMeasurement equipment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor additional cautions and detailed usage instructions, please refer to the \u003ca href=\"http:\/\/panasonic-denko.co.jp\/ac\/e_download\/control\/relay\/common\/catalog\/mech_eng_cau_general.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eCautions for Use\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eNote: Datasheet was not processed, please search the internet for the part number for more details.\u003c\/p\u003e","published_at":"2025-08-13T07:24:12+05:30","created_at":"2025-08-13T07:24:12+05:30","vendor":"Waldom Electonics","type":"","tags":["12V","4A","GEN","IMPORT_CSV","PANAS-AROM","Relay","WLDM"],"price":143442,"price_min":143442,"price_max":143442,"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":50614347727165,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"S4EB-12V","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"S4EB-12V","public_title":null,"options":["Default Title"],"price":143442,"weight":250,"compare_at_price":null,"inventory_management":"shopify","barcode":"S4EB-12V","requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/thinkrobotics.com\/cdn\/shop\/files\/S4EB-12V_10561064_7520f22b.jpg?v=1755050055"],"featured_image":"\/\/thinkrobotics.com\/cdn\/shop\/files\/S4EB-12V_10561064_7520f22b.jpg?v=1755050055","options":["Title"],"media":[{"alt":null,"id":45811852017981,"position":1,"preview_image":{"aspect_ratio":1.0,"height":200,"width":200,"src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/S4EB-12V_10561064_7520f22b.jpg?v=1755050055"},"aspect_ratio":1.0,"height":200,"media_type":"image","src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/S4EB-12V_10561064_7520f22b.jpg?v=1755050055","width":200}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch3\u003ePanasonic EW \/ Aromat S4EB-12V - General Purpose Relay 4PST 4A 12V\u003c\/h3\u003e\n\u003cp\u003eUpgrade your electronic control systems with the high-reliability Panasonic EW \/ Aromat S4EB-12V general purpose relay. Designed for versatile applications, this relay features a compact form factor combined with advanced electromagnetic circuit technology to ensure high sensitivity, durability, and broad control capabilities.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e S4EB-12V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e PANASONIC EW \/ AROMAT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e Japan (JP)\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 BOX\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDatasheet:\u003c\/strong\u003e \u003ca href=\"https:\/\/4donline.ihs.com\/images\/VipMasterIC\/IC\/ARMC\/ARMCS01846\/ARMCS01846-1.pdf?hkey=82A29B72BDB3BD67C626B77C2F032848\" target=\"_blank\" rel=\"noopener noreferrer\"\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\u003e\n\u003cstrong\u003eHigh Sensitivity \u0026amp; Compact Design:\u003c\/strong\u003e Utilizes polarized electromagnetic circuits with a 4-gap balanced armature for efficient control, allowing direct drive by driver chips.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVibration \u0026amp; Shock Resistance:\u003c\/strong\u003e Employs 4G-BA technology for enhanced durability under harsh conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Reliability \u0026amp; Long Life:\u003c\/strong\u003e Twin contact design minimizes contact bounce, ensuring consistent operation over extended cycles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide Control Range:\u003c\/strong\u003e Gold-clad silver alloy contacts support microcurrents (100 µA, 100 mV DC) up to 4A, 250V AC.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMultiple Contact Formations \u0026amp; Latching Options:\u003c\/strong\u003e Available in various configurations including 2a2b, 3a1b, 4a, with single and dual coil latching types for circuit memory applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard \u0026amp; Custom Mounting:\u003c\/strong\u003e DIL terminal arrays compatible with common PCB patterns; sockets available for easy installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eContact Arrangement\u003c\/th\u003e\n\u003cth\u003eNominal Coil Voltage\u003c\/th\u003e\n\u003cth\u003eOperating Function\u003c\/th\u003e\n\u003cth\u003eContact Rating\u003c\/th\u003e\n\u003cth\u003eExpected Life\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2 Form A \/ 2 Form B\u003c\/td\u003e\n\u003ctd\u003e3V, 5V, 6V, 12V, 24V, 48V DC\u003c\/td\u003e\n\u003ctd\u003eSingle side stable (Nil), 2 coil latching (L, L2)\u003c\/td\u003e\n\u003ctd\u003e4A 250V AC, 3A 30V DC\u003c\/td\u003e\n\u003ctd\u003eHigh cycle life with minimal contact bounce\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3 Form A \/ 1 Form B\u003c\/td\u003e\n\u003ctd\u003eSame as above\u003c\/td\u003e\n\u003ctd\u003eSame as above\u003c\/td\u003e\n\u003ctd\u003eSame as above\u003c\/td\u003e\n\u003ctd\u003eExpected to meet industrial reliability standards\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4 Form A\u003c\/td\u003e\n\u003ctd\u003eSame as above\u003c\/td\u003e\n\u003ctd\u003eSame as above\u003c\/td\u003e\n\u003ctd\u003eSame as above\u003c\/td\u003e\n\u003ctd\u003eLong operational lifespan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eElectrical \u0026amp; Mechanical Characteristics\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eItem\u003c\/th\u003e\n\u003cth\u003eSpecifications\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eContact Resistance (Initial)\u003c\/td\u003e\n\u003ctd\u003eMax. 50 mΩ (at 6V DC, 1A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInsulation Resistance\u003c\/td\u003e\n\u003ctd\u003eMin. 10,000 MΩ (at 500V DC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBreakdown Voltage\u003c\/td\u003e\n\u003ctd\u003eBetween open contacts: 750 Vrms for 1 min.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperate Time\u003c\/td\u003e\n\u003ctd\u003eMax. 15 ms (at nominal coil voltage)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelease Time\u003c\/td\u003e\n\u003ctd\u003eMax. 10 ms (without diode)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShock Resistance\u003c\/td\u003e\n\u003ctd\u003eFunctional: Min. 490 m\/s²; Destructive: Min. 980 m\/s²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVibration Resistance\u003c\/td\u003e\n\u003ctd\u003eFunctional: 10-55 Hz at 3 mm amplitude; Destructive: 10-55 Hz at 4 mm amplitude\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-55°C to +65°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eDimensions \u0026amp; Mounting\u003c\/h3\u003e\n\u003cp\u003eExternal dimensions and PCB mounting details are available in the datasheet. Download CAD data for precise measurements and mounting configurations.\u003c\/p\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eTelecommunications equipment\u003c\/li\u003e\n\u003cli\u003eData processing systems\u003c\/li\u003e\n\u003cli\u003eFacsimile machines\u003c\/li\u003e\n\u003cli\u003eAlarm systems\u003c\/li\u003e\n\u003cli\u003eMeasurement equipment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor additional cautions and detailed usage instructions, please refer to the \u003ca href=\"http:\/\/panasonic-denko.co.jp\/ac\/e_download\/control\/relay\/common\/catalog\/mech_eng_cau_general.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eCautions for Use\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eNote: Datasheet was not processed, please search the internet for the part number for more details.\u003c\/p\u003e"}
