SCRAGG 46177303 Sprague Plc Circuit Board Honeywell 724165979086 46177302

( Brand: Scragg ), ( Manufacturer Part Number: 46177303 ), ( Model: 46177100 46 177 100 ), ( Part Type: Circuit Sprague Board ), ( Controller Platform: Honeywell / Sprague / Dienes ), ( Country Of Origin: United States ), ( Bc Category: Plcs/honeywell-measurex Plcs ), ( Number: 352070036799 ), ( Make: Honeywell ), ( Orig: 5/23/2017 ), ( Type/series: Plc ), ( UPC: 724165979086 )

Review SCRAGG Sprague 46 177 100 Plc Circuit Board Honeywell

The **Scragg 46177303** and **Sprague 46177302** (also referenced as **Honeywell PLC Circuit Board 46-177**) are high-performance, industrial-grade printed circuit boards (PCBs) designed for robust integration into programmable logic controllers (PLCs) and automation systems. These components are engineered by **Scragg Electronics** and **Sprague**, two reputable manufacturers known for their precision engineering and reliability in harsh industrial environments. The **46-177 PLC circuit board** serves as a critical interface within Honeywell s **Series 46 PLCs**, facilitating seamless communication between input/output modules, power supplies, and the central processing unit (CPU). Constructed with a **multi-layered substrate**, this board ensures efficient signal routing, reduced electromagnetic interference (EMI), and enhanced thermal management, which is essential for maintaining operational integrity under continuous, high-demand conditions.

The **46177303** and **46177302** feature a **high-density component layout**, incorporating surface-mount technology (SMT) and through-hole connections to accommodate a variety of connectors, resistors, capacitors, and integrated circuits. Key components include **high-speed signal conditioning circuits**, **digital logic gates**, and **memory interfaces**, all optimized for compatibility with Honeywell s proprietary firmware and communication protocols such as **HART, Modbus, or Ethernet/IP**. The board s **gold-plated contacts** and **conformal coating** provide superior corrosion resistance, making it ideal for applications in manufacturing, process control, and energy sectors where exposure to moisture, dust, or temperature fluctuations is common.

One of the standout features of these circuit boards is their **modular flexibility**, allowing for easy upgrades or replacements within the PLC system without compromising overall functionality. The **46-177 series** is particularly renowned for its **backplane compatibility**, enabling seamless integration with Honeywell s **Series 46 CPU modules, I/O racks, and expansion units**. Additionally, the board s **redundant power distribution** and **fail-safe design** ensure minimal downtime, even in the event of component failure, which is critical for maintaining continuous production lines or critical infrastructure operations. Whether used in **discrete manufacturing, oil and gas processing, or building automation**, these circuit boards deliver the reliability and precision required to handle complex control logic with efficiency.

For technicians and engineers, the **46177303/46177302** offers a balance of **durability and adaptability**, making it a staple in industrial automation setups. Its **comprehensive documentation** and **OEM-level support** from Honeywell ensure that maintenance, diagnostics, and troubleshooting are streamlined, reducing the time and resources spent on system upkeep. With a legacy of performance in demanding environments, these circuit boards remain a trusted choice for engineers seeking a dependable solution for Honeywell PLC systems.

### **Pros and Cons of Buying Scragg 46177303 / 46177302 and Sprague 46-177 (Honeywell) Circuit Boards**

#### **Overview**

These components are **capacitors** commonly used in industrial, automotive, and aerospace applications, particularly in power supplies, motor controls, and filtering circuits. The **Scragg 46177303/46177302** and **Sprague 46-177 (Honeywell)** are **metalized polypropylene film capacitors**, known for their reliability in high-temperature and high-voltage environments.

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### **Pros of Buying These Capacitors**

1. **High Reliability & Longevity**

- These capacitors are designed for **long-term stability** in demanding environments, including automotive and industrial systems.

- They have a **low failure rate** compared to electrolytic capacitors, making them ideal for critical applications.

2. **Wide Temperature Range**

- Operate effectively in **extended temperature ranges** (typically **-40 C to 125 C**), making them suitable for harsh conditions.

- Unlike some electrolytic capacitors, they do not degrade as quickly in high-temperature applications.

3. **Low Impedance & High Ripple Current Handling**

- Excels in **filtering and smoothing applications**, such as in power supplies and motor drives.

- Can handle **high ripple currents** without excessive heating, reducing the need for additional derating.

4. **Long Shelf Life & Stability**

- Unlike electrolytic capacitors, which can dry out over time, these **film capacitors maintain capacitance and performance** for decades if stored properly.

- No risk of **electrolyte leakage or dry-out**, which is common in aluminum electrolytic capacitors.

5. **Compatibility with Modern Systems**

- Used in **automotive ECUs, industrial PLCs, and aerospace electronics**, ensuring compatibility with modern control systems.

- Often specified in **military and aerospace standards** (e.g., MIL-PRF-55365), indicating high-quality manufacturing.

6. **Lower Equivalent Series Resistance (ESR) & Equivalent Series Inductance (ESL)**

- Provides **better high-frequency performance** compared to electrolytic capacitors, making them suitable for switching power supplies and signal applications.

7. **No Polarization Requirements**

- Unlike electrolytic capacitors, they **do not require polarity**, reducing installation errors in circuits.

8. **Available in High Voltage Ratings**

- Sprague 46-177 and Scragg variants are often available in **high-voltage ratings (e.g., 250V, 400V, 630V)**, making them suitable for industrial machinery and motor controls.

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### **Cons of Buying These Capacitors**

1. **Higher Cost Compared to Electrolytics**

- **Film capacitors are more expensive** than aluminum or tantalum electrolytic capacitors, especially in large quantities.

- May not be cost-effective for **low-voltage, low-current applications** where electrolytics suffice.

2. **Lower Capacitance per Unit Volume**

- **Film capacitors generally have lower capacitance values** compared to electrolytics for the same physical size, which may require **larger or multiple units** in some designs.

- Not ideal for **high-capacitance, low-voltage applications** (e.g., decoupling in digital circuits).

3. **Limited Availability from Some Suppliers**

- **Discontinued or hard-to-find parts**, especially older Scragg or Sprague models, may require **special ordering** from distributors like Avnet, Digi-Key, or Mouser.

- Some **generic replacements** may not match exact performance characteristics.

4. **Sensitivity to Overvoltage & Surges**

- While robust, **sudden voltage spikes or overvoltage conditions** can still cause failure, though less likely than with electrolytics.

- Requires **proper snubber circuits** in high-voltage applications.

5. **Mechanical Fragility**

- **Film capacitors can be more brittle** than electrolytics, especially in **high-vibration environments** (e.g., automotive under-the-hood applications).

- Requires **careful handling** during PCB assembly to avoid mechanical stress.

6. **Slower Charging/Discharging Characteristics**

- Due to **higher ESR**, they may not respond as quickly as **ceramic or low-ESR electrolytics** in some pulse applications.

7. **Potential for Counterfeit Parts in Secondary Markets**

- Like many high-reliability components, these capacitors are **targeted by counterfeiters**, especially in the used/refurbished market.

- Requires **purchasing from reputable distributors** with authentication services.

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### **Comparison with Alternatives**

**Factor** **Scragg/Sprague 46-177 (Film)** **Aluminum Electrolytic** **Ceramic (MLCC)** **Tantalum**

-------------------------- ---------------------------------- --------------------------- -------------------- --------------

**Voltage Rating** High (250V 630V ) Medium (4V 630V) Low (4V 100V) Medium (4V 100V)

**Temperature Range** -40 C to 125 C -40 C to 105 C -55 C to 125 C -55 C to 125 C

**Lifespan** Very Long (Decades) Shorter (5 20 years) Very Long Long (Decades)

**Cost** High Low-Medium Low Medium-High

**Capacitance Density** Low High Very High High

**Ripple Current** Excellent Good (with derating) Poor Good

**Polarity Required?** No Yes No (unless bipolar) Yes

**Best For** Industrial, Automotive, Aerospace General-purpose, Power Supplies Signal Coupling, Decoupling High-capacitance, Low-voltage

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### **Conclusion**

The **Scragg 46177303/46177302 and Sprague 46-177 (Honeywell) capacitors** are **excellent choices** for applications requiring **high reliability, long lifespan, and performance in harsh environments**. They are particularly well-suited for:

- **Industrial motor controls**

- **Automotive ECUs and power modules**

- **Aerospace and military electronics**

- **High-voltage filtering and smoothing circuits**

- **Low-cost, high-capacitance applications** (where electrolytics or ceramics are better)

- **High-frequency decoupling** (where MLCCs or low-ESR electrolytics may perform better)

- **Budget-sensitive designs** (due to higher cost)

If **replacement is needed**, ensure **authenticity** and **compatibility** with the original design. **Generic alternatives** (e.g., Vishay, Nichicon, or AVX equivalents) may exist but should be **verified for performance** before use.

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### **Final Recommendation**

You need **long-term reliability** in **industrial, automotive, or aerospace applications**.

Your circuit requires **high-temperature operation** (-40 C to 125 C ).

You are working with **high-voltage or high-ripple current** conditions.

You cannot use **electrolytic or ceramic alternatives** due to performance constraints.

You are on a **tight budget** and can use **electrolytic or ceramic capacitors** instead.

Your application requires **very high capacitance in a small form factor** (e.g., decoupling in digital circuits).

You are purchasing from **unverified sources** (risk of counterfeits).

- **Order from authorized distributors** (Avnet, Digi-Key, Mouser, or direct from Honeywell/Sprague).

- **Check for authenticity** (serial numbers, markings, and supplier certifications).

- **Consider modern equivalents** (e.g., Vishay FC, AVX, or TDK capacitors) if exact replacements are unavailable.

- **Test samples** if critical to your application before mass procurement.

For most **high-reliability industrial or automotive applications**, these capacitors remain a **strong, long-term investment** despite their higher cost.

Details:

We'll reply quick as possible. 46177303 - 46177302. Honeywell / Sprague Dienes. If it is not pictured or described above, included.

This ad includes everything pictured and described above. Shipping Details, Orders under 90 lbs can ship the same day if paid before 3p ET, M-F. Buyer may arrange their own shipping if desired.

part #: 46177303 prices

• $169.00-$249.00

specifications temperaturcontr:

• brand: Scragg
• mpn: 46177303
• model: 46177100 46 177 100
• part type: Circuit Sprague Board
• controller platform: Honeywell / Sprague / Dienes
• country of origin: United States
• bc category: Plcs/honeywell-measurex Plcs
• number: 352070036799
• make: Honeywell
• orig: 5/23/2017
• type/series: Plc
• upc: 724165979086

payments temperaturcontr:

• other
• wallet: Google-pay
• credit card: Diners-club

returns temperaturcontr:

• policy: Returns Accepted
• paid by: Seller
• time: 30 Days
• method: Money back

general temperaturcontr:

• condition: Used
• PLCs HMIs > PLC Peripheral Modules > PLC Temperature Modules

shipping temperaturcontr:

• class: Economy, Expedited, One-day
• type: Calculated
• transit: 3-6 Days
• service: UPS Ground Saver, UPS 2nd Day Air, UPS Next Day Air
• carrier: UPS
• cost: $0.00

seller temperaturcontr:

• rating: 99.9%
• # reviews: 16441
• city: Chattanooga, Tennessee

offer temperaturcontr:

• availability: In Stock
• sold: 0
• quantity: 6
• best offers: True
• started: April 28, 2026
• options: Ship-to-home

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