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APEM 5249WWAB Toggle Switch DPDT Equivalent & Substitute Parts
Part Overview
The APEM 5249WWAB is a Double Pole Double Throw (DPDT) toggle switch designed for through-hole, right-angle vertical mounting applications. This switch operates at 6A AC / 4A DC with 125V AC and 30V DC ratings, featuring an On-Off-On switching function. The part is currently Active in status with 1,076 pieces in stock inventory.
Equivalent and substitute parts are identified when design requirements permit operation within alternative electrical and mechanical parameter ranges, or when the primary part becomes unavailable. Substitute selection is based strictly on matching circuit configuration (DPDT), mounting type (through-hole, right-angle, vertical), termination style (PC pin), and compatible voltage/current operating ranges.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | 5249WWAB |
| Manufacturer | APEM Inc. |
| Circuit Configuration | DPDT |
| Switch Function | On-Off-On |
| Mounting Type | Through Hole, Right Angle, Vertical |
| Current Rating (AC) | 6A |
| Current Rating (DC) | 4A |
| Voltage Rating (AC) | 125V |
| Voltage Rating (DC) | 30V |
| Termination Style | PC Pin |
| Actuator Type | Standard Round |
| Actuator Length | 13.50mm |
| Panel Cutout Dimensions | Circular - 6.50mm Dia |
| Operating Temperature Range | -40°C to 85°C |
| Electrical Life | 50,000 Cycles |
| RoHS Status | ROHS3 Compliant |
| Part Status | Active |
Substitute Part Grouping Explanation
Substitute parts for the APEM 5249WWAB are identified based on the following critical parameters that determine functional compatibility:
Primary Matching Criteria:
- Circuit Configuration: DPDT (Double Pole Double Throw)
- Switch Function: On-Off-On
- Mounting Type: Through Hole, Right Angle, Vertical
- Termination Style: PC Pin
- Actuator Type: Standard Round
Electrical Compatibility Criteria:
- Current Rating: Minimum 5A AC or equivalent VA rating
- Voltage Rating (AC): Minimum 120V AC
- Voltage Rating (DC): Minimum 28V DC
Mechanical Compatibility Criteria:
- Panel Cutout: Circular configuration compatible with standard through-hole mounting
- Bushing Thread: Unthreaded
- Actuator Length: Within acceptable range for panel integration (10.41mm to 13.50mm)
Substitutes are grouped into two categories: Direct Equivalents (matching all primary parameters with active product status) and Functional Alternatives (meeting electrical and mechanical requirements with potential operational differences noted).
Parameter Comparison
| Parameter | 5249WWAB (APEM) | 34BWDP31B4M7QT (Grayhill) | 100DP3T1B4M7QE (E-Switch) | 1-1825143-7 (TE Connectivity) |
|---|---|---|---|---|
| Manufacturer | APEM Inc. | Grayhill Inc. | E-Switch | TE Connectivity ALCOSWITCH |
| Circuit Configuration | DPDT | DPDT | DPDT | DPDT |
| Switch Function | On-Off-On | On-Off-On | On-Off-On | On-Off-On |
| Mounting Type | Through Hole, Right Angle, Vertical | Through Hole, Right Angle, Vertical | Through Hole, Right Angle, Vertical | Through Hole, Right Angle, Vertical |
| Current Rating (AC) | 6A | 5A | 5A | 0.4VA |
| Current Rating (DC) | 4A | 5A | 5A | 0.4VA |
| Voltage Rating (AC) | 125V | 125V | 120V | 20V |
| Voltage Rating (DC) | 30V | 28V | 28V | 20V |
| Termination Style | PC Pin | PC Pin | PC Pin | PC Pin |
| Actuator Type | Standard Round | Standard Round | Standard Round | Standard Round |
| Actuator Length (mm) | 13.50 | 12.60 | 10.41 | 12.70 |
| Operating Temperature Range | -40°C to 85°C | -30°C to 85°C | -30°C to 85°C | -30°C to 85°C |
| Electrical Life | 50,000 Cycles | 50,000 Cycles | 40,000 Cycles | 6,000 Cycles |
| Ingress Protection | Not specified | IP67 | Not specified | IP67 |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | Not applicable |
| Part Status | Active | Active | Active | Obsolete |
| Inventory Available | 1,076 Pcs | 822 Pcs | 1,035 Pcs | 658 Pcs |
Engineering Selection Recommendations
Primary Substitute: Grayhill 34BWDP31B4M7QT
The Grayhill 34BWDP31B4M7QT is the closest functional equivalent to the APEM 5249WWAB. Both parts share identical circuit configuration (DPDT), switch function (On-Off-On), mounting type (through-hole, right-angle, vertical), and termination style (PC pin). The Grayhill part operates at 5A AC/DC with 125V AC and 28V DC ratings, which are within acceptable operating parameters for applications designed for the APEM part. Both parts maintain 50,000 electrical life cycles and are ROHS3 compliant with active product status. The Grayhill part includes IP67 ingress protection, providing enhanced environmental sealing. Actuator length difference (12.60mm vs. 13.50mm) is within acceptable mechanical tolerance for standard panel cutout applications.
Secondary Substitute: E-Switch 100DP3T1B4M7QE
The E-Switch 100DP3T1B4M7QE provides functional substitution with matching circuit configuration, switch function, and mounting type. This part operates at 5A AC/DC with 120V AC and 28V DC ratings. The lower actuator length (10.41mm) may require panel cutout verification for applications with tight mechanical constraints. Electrical life rating of 40,000 cycles is lower than the APEM part. This substitute is suitable for applications where the reduced electrical life cycle rating is acceptable and panel geometry accommodates the shorter actuator.
Not Recommended: TE Connectivity 1-1825143-7
The TE Connectivity 1-1825143-7 is classified as Obsolete and does not meet electrical requirements for direct substitution. Current rating of 0.4VA and voltage ratings of 20V AC/DC are significantly below the APEM 5249WWAB specifications. Electrical life of 6,000 cycles is substantially lower. This part is listed only for historical reference and cross-reference purposes and should not be selected for new designs or replacements.
Frequently Asked Questions (FAQ)
Q: Can the Grayhill 34BWDP31B4M7QT directly replace the APEM 5249WWAB in existing designs?
A: The Grayhill part is mechanically and electrically compatible for applications operating within its rated specifications (5A AC/DC, 125V AC, 28V DC). Panel cutout dimensions are compatible with standard through-hole mounting. Verify that your application does not exceed the Grayhill part's current or voltage ratings. The 1mm difference in actuator length (12.60mm vs. 13.50mm) is within standard mechanical tolerance for panel integration.
Q: What is the key difference between the E-Switch 100DP3T1B4M7QE and the APEM 5249WWAB?
A: Both parts share identical circuit configuration and mounting type. The primary differences are: (1) E-Switch current rating is 5A versus APEM's 6A AC; (2) E-Switch electrical life is 40,000 cycles versus APEM's 50,000 cycles; (3) E-Switch actuator is 10.41mm versus APEM's 13.50mm. Select the E-Switch part only if your application operates within these reduced specifications and panel geometry accommodates the shorter actuator.
Q: Why is the TE Connectivity 1-1825143-7 listed as a substitute if it is obsolete?
A: The TE Connectivity part is included for cross-reference and historical documentation purposes only. Its electrical specifications (0.4VA, 20V AC/DC) are insufficient for applications requiring the APEM 5249WWAB's performance level. This part should not be selected for new designs or component replacement.
Q: Are all substitute parts ROHS3 compliant?
A: The APEM 5249WWAB, Grayhill 34BWDP31B4M7QT, and E-Switch 100DP3T1B4M7QE are all ROHS3 compliant. The TE Connectivity 1-1825143-7 has "Not applicable" RoHS status due to its obsolete classification. For new designs, select from the three ROHS3 compliant options.
Q: What is the significance of the IP67 rating on the Grayhill part?
A: IP67 classification indicates the Grayhill 34BWDP31B4M7QT is dust-tight and waterproof, providing enhanced environmental protection compared to the APEM part which has no specified ingress protection rating. Select the Grayhill part for applications requiring sealed operation in harsh or wet environments.
Q: How do I determine which substitute is appropriate for my application?
A: Verify your application's electrical requirements (current and voltage ratings) against each substitute's specifications. Confirm panel cutout geometry accommodates the actuator length of your selected part. For applications requiring extended electrical life, select parts with 50,000 cycle ratings (APEM or Grayhill). For environmentally sealed applications, select the Grayhill part with IP67 rating. Ensure selected part maintains active product status for long-term availability.
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