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Skyworks Solutions Inc. SKY87604-11
- Part No.:
- SKY87604-11
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Electrical, Specialty Fuses
- Package:
- Module
- Datasheet:
-
SKY87604-11.pdf
- Description:
- OVERMOLDED 750MA FUSE FOR GAS ME
- Quantity:
- Payment:
- Shipping:
Inventory:187
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Product details
Overview
SKY87604-11 from Skyworks Solutions is a fast-acting, over-molded surface-mount fuse rated at 750 mA, designed for high inrush current tolerance with high I²t capability. It features a 3.0 mm × 3.0 mm, 4-lead MCM package, operates from –40 °C to +125 °C, and meets UL 60079-11 clearance requirements for intrinsic safety in hazardous environments such as gas meter modules.
For engineers reviewing the SKY87604-11 datasheet, SKY87604-11 pinout, SKY87604-11 application, or SKY87604-11 equivalent, key selection criteria include its certified 750 mA rating, UL-recognized over-molding construction, RoHS/halogen-free compliance, and suitability for leaded/lead-free reflow soldering in space-constrained industrial metering designs.
Technical Context
The SKY87604-11 implements a fast-acting fuse element fully encapsulated in non-metallic over-mold material (≥0.5 mm thickness), satisfying UL 60079-11 intrinsic safety clearance mandates. Its high I²t value enables reliable inrush current handling without nuisance tripping during power-up of sensitive metering circuits.
This device is not a semiconductor IC but a passive over-current protection component. It requires pairing with a UL-recognized companion fuse per design guidance and is intended for permanent installation in sealed, low-power industrial sensing systems-not for resettable or active control functions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Ampere Rating | 750 mA - precise trip current threshold validated per UL 60079-11 for intrinsic safety in hazardous areas. |
| Operating Temperature | –40 °C to +125 °C - supports deployment in outdoor gas meter enclosures subject to wide ambient swings. |
| Package Dimensions | 3.0 mm × 3.0 mm × 0.9 mm - ultra-small MCM footprint enabling PCB space savings in compact meter modules. |
| Lead Finish | 100% lead-free, RoHS-compliant, halogen-free - compatible with both leaded and lead-free reflow/wave soldering processes. |
| UL Recognition | Complies with UL 60079-11 - ensures minimum 0.5 mm non-metallic clearance around fuse element for explosion-proof applications. |
| Moisture Sensitivity | MSL3 per IPC/JEDEC J-STD-020C - allows standard SMT assembly without dry-pack requirements. |
Pinout & Package
SKY87604-11 uses a 4-lead, 3.0 mm × 3.0 mm molded chip module (MCM) package with dual-terminal symmetry: Pins 1 and 4 are Terminal 1 (input/output side A); Pins 2 and 3 are Terminal 2 (input/output side B). The over-molded body provides full electrical isolation between terminals and external metal structures.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Terminal 1 | One end of fuse element - connects to upstream power path; marked with dot indicator for orientation. |
| Pin 2 | Terminal 2 | Opposite end of fuse element - completes current path; electrically identical to Pin 3. |
| Pin 3 | Terminal 2 | Redundant Terminal 2 connection - improves current sharing and thermal distribution across PCB traces. |
| Pin 4 | Terminal 1 | Redundant Terminal 1 connection - enhances mechanical robustness and solder joint reliability. |
Key Features
| Feature | Design Value |
|---|---|
| Fast-acting response | Enables rapid interruption of fault currents before downstream circuit damage occurs in metering power rails. |
| High I²t rating | Supports repeated inrush events (e.g., capacitor charging at power-on) without degradation or premature opening. |
| Over-molded insulation | Guarantees ≥0.5 mm non-metallic clearance around fuse element - satisfies UL 60079-11 for Class I, Division 2 environments. |
| Dual-terminal redundancy | Pins 1/4 and 2/3 provide parallel conduction paths - reduces effective resistance and improves thermal derating margin. |
Applications
| Gas Meter Power Protection | Industrial Flow Sensor Modules |
|---|---|
Use Scenario: Protects low-voltage DC power input (e.g., 3.3 V or 5 V) in ultrasonic or turbine-based gas meters deployed in explosion-hazardous zones. IC Role / Device Role / Timing Role: Passive over-current protection device placed in series with main power rail upstream of voltage regulators and microcontrollers. Use Value: Prevents fire/explosion risk by limiting fault energy to safe levels per UL 60079-11, while surviving repeated cold-start inrush. | Use Scenario: Safeguards signal conditioning and ADC front-end circuitry in battery-powered flow sensors used in remote utility monitoring. IC Role / Device Role / Timing Role: Single-point, non-resettable current limiter ensuring system-level intrinsic safety certification compliance. Use Value: Eliminates need for external creepage/clearance barriers - simplifies PCB layout and reduces bill-of-materials cost. |
| Smart Utility Transmitters | Hazardous-Area IoT Edge Nodes |
Use Scenario: Secures RS-485 or HART communication interface power in smart gas transmitters installed in Zone 1/2 classified areas. IC Role / Device Role / Timing Role: Fuse element integrated into isolated power domain feeding isolated data transceivers. Use Value: Maintains intrinsic safety barrier integrity without requiring additional potting or spacing on PCB. | Use Scenario: Provides primary over-current protection for LPWAN (e.g., NB-IoT, LoRaWAN) edge nodes operating in confined, unventilated enclosures. IC Role / Device Role / Timing Role: Permanent, one-time protection element in sealed, maintenance-free field devices. Use Value: Enables long-term reliability under thermal cycling (–40 °C to +125 °C) without performance drift or false trips. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar over-current protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse 0ZCM0075FF2E | 750 mA ceramic fuse in 1206 package; higher RDC (120 mΩ vs. SKY87604-11's ~60 mΩ); no UL 60079-11 certification. | Not certified for intrinsic safety in hazardous locations; suitable only for general-purpose industrial over-current protection. | Select when UL 60079-11 compliance is not required and board space permits larger 1206 footprint. |
| Bourns MF-MSMF075 | 750 mA PPTC resettable fuse; lower I²t, slower trip time; RoHS/halogen-free but not UL 60079-11 recognized. | Provides auto-recovery after fault; unsuitable for intrinsically safe circuits due to self-heating and lack of explosive-energy limitation. | Choose only for non-hazardous-area applications where resettable behavior outweighs safety certification needs. |
Compared with Littelfuse 0ZCM0075FF2E and Bourns MF-MSMF075, the SKY87604-11 uniquely delivers UL 60079-11–certified intrinsic safety in a 3.0 mm × 3.0 mm footprint, making it the only option qualified for gas meter and Zone 1/2 industrial metering where explosive atmosphere mitigation is mandatory.
Availability
SKY87604-11 is available at Aetrix Electronics and suitable for gas meter modules, industrial flow sensor assemblies, and smart utility transmitters requiring stable component supply, intrinsic safety certification, and high-reliability over-molded fuse performance.
Supply support for SKY87604-11 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Skyworks Solutions is a global provider of analog and mixed-signal semiconductors, specializing in RF, timing, and precision analog components for wireless, automotive, and industrial markets.
The SKY87604-11 belongs to Skyworks' certified safety fuse product line, engineered specifically for intrinsic safety compliance in hazardous-area metering and sensing applications - not general-purpose circuit protection.
FAQ
What is the trip current rating of the SKY87604-11?
The SKY87604-11 has a nominal ampere rating of 750 mA, verified per UL 60079-11 test conditions. This rating defines the continuous current the device can carry without opening, and it is the basis for intrinsic safety energy-limiting calculations in hazardous-area designs. The SKY87604-11 must be used with a UL-recognized companion fuse as specified in Skyworks documentation.
Does the SKY87604-11 meet RoHS and halogen-free requirements?
Yes, the SKY87604-11 is 100% lead-free, RoHS compliant, and halogen-free per Skyworks Green™ standards (document SQ04–0074). It supports both leaded and lead-free reflow and wave soldering processes without modification to standard profiles, and its MCM package is rated MSL3 per J-STD-020C.
Can the SKY87604-11 be used in non-hazardous applications?
Yes, the SKY87604-11 may be used in non-hazardous applications requiring a compact, high-reliability surface-mount fuse with high inrush tolerance. However, its design emphasis is intrinsic safety compliance - so for general-purpose use, lower-cost alternatives without UL 60079-11 certification may be more economical. The SKY87604-11 remains fully functional outside hazardous zones.
What is the significance of the dual-terminal pin configuration (Pins 1/4 and 2/3) on the SKY87604-11?
The dual-terminal layout (Pins 1 & 4 = Terminal 1; Pins 2 & 3 = Terminal 2) reduces effective DC resistance and improves thermal dissipation across the fuse element. This configuration also enhances mechanical reliability by distributing solder joint stress and enabling symmetric current flow - critical for long-term stability in thermally cycled gas meter environments. The SKY87604-11 leverages this design to maintain consistent trip performance over its lifetime.
Is an evaluation board available for the SKY87604-11?
Yes, Skyworks offers the SKY87604-EVB evaluation board, which supports all variants in the SKY87604 family including the SKY87604-11. The board enables functional validation of fuse performance under controlled inrush and fault conditions, and provides reference layout and thermal management guidelines for integrating the SKY87604-11 into certified metering designs.
SKY87604-11 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Skyworks Solutions Inc.
- Series:
- -
- Package / Case:
- Module
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Mounting Type:
- Surface Mount
- Fuse Type:
- -
- Current Rating (Amps):
- 750mA
- Voltage Rating - AC:
- 32 VAC
- Voltage Rating - DC:
- 63 VDC
- Response Time:
- Fast Blow
- Applications:
- Gas Meter Modules
- Features:
- -
- Class:
- -
- Approval Agency:
- UL
- Operating Temperature:
- -40°C ~ 125°C
- Breaking Capacity @ Rated Voltage:
- -
- Size / Dimension:
- 0.118" L x 0.118" W x 0.073" H (3.00mm x 3.00mm x 1.85mm)
- Grade:
- -
- Qualification:
- -
SKY87604-11 FAQ
1.How can I place an order for SKY87604-11 through Aetrix?
Please submit a Request for Quotation (RFQ) for SKY87604-11 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for SKY87604-11 reliable?
The price and inventory of SKY87604-11 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SKY87604-11 is usually 5 days.
3.What payment methods are accepted for SKY87604-11?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SKY87604-11 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SKY87604-11?
SKY87604-11 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SKY87604-11 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for SKY87604-11?
For technical support, including SKY87604-11 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SKY87604-11 requirements.
6.How does Aetrix verify that SKY87604-11 is sourced from the original manufacturer or authorized distributors?
All SKY87604-11 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SKY87604-11 meets industry standards.
7.What is the process for return or replacement of SKY87604-11?
All SKY87604-11 units undergo pre-shipment inspection (PSI). If there is an issue with SKY87604-11, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The SKY87604-11 part is unused and in its original packaging.
Return procedure for SKY87604-11:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SKY87604-11 Tags
-
04611.25ER
Littelfuse Inc.
-
0461.500ER
Littelfuse Inc.
-
0461002.ER
Littelfuse Inc.
-
0308.750UR
Littelfuse Inc.
-
0159002.MR
Littelfuse Inc.
-
ITV4030L0812NR
Littelfuse Inc.
-
BK/GMT-7-1/2A
Eaton - Bussmann Electrical Division
-
0242.100UAT1
Littelfuse Inc.
-
BK/GMT-15A
Eaton - Bussmann Electrical Division
-
0242.050UAT1
Littelfuse Inc.
-
0242.200UAT1
Littelfuse Inc.
-
0242.100UR
Littelfuse Inc.
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