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VPP20-1000-B Equivalent & Substitute Parts
Part Overview
The VPP20-1000-B is a 20VA laminated core power transformer manufactured by Triad Magnetics, designed for through-hole PC mount applications in the World Series™ product line. This transformer features dual primary and secondary windings with configurable output voltage (parallel 10V or series 20V) and is rated for 4000Vrms isolation. The part is currently active in production with ROHS3 compliance and REACH unaffected status, making it suitable for modern electronic equipment requiring regulated power distribution in compact form factors.
Equivalent and substitute parts are identified when inventory constraints, packaging preferences, or supply chain requirements necessitate alternative sourcing while maintaining identical electrical and mechanical performance specifications.
Substiute Parts
Key Parameters
| Parameter | Specification |
|---|---|
| Power Rating | 20VA (Maximum) |
| Primary Voltage | 115V, 230V |
| Secondary Voltage (Full Load) | Parallel 10V, Series 20V |
| Output Current (Maximum) | Parallel 2A, Series 1A |
| Core Type | Laminated Core |
| Primary Windings | Dual |
| Secondary Windings | Dual |
| Center Tap | No |
| Mounting Type | Through Hole |
| Termination Style | PC Pin |
| Isolation Voltage | 4000Vrms |
| Physical Dimensions | 57.15mm L × 47.63mm W × 41.28mm H (Seated Max) |
| Weight | 0.9 lb (408.23 g) |
| RoHS Status | ROHS3 Compliant |
| Product Status | Active |
Substitute Part Grouping Explanation
Substitution eligibility for the VPP20-1000-B is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part VPP20-1000 qualifies as a direct equivalent based on the following criteria:
Electrical Parameters (Must Match Exactly):
- Power rating: 20VA
- Primary voltage configuration: 115V, 230V dual input
- Secondary voltage output: Parallel 10V / Series 20V dual configuration
- Maximum output current: Parallel 2A / Series 1A
- Isolation voltage: 4000Vrms
- Winding configuration: Dual primary, dual secondary, no center tap
Mechanical Parameters (Must Match Exactly):
- Core type: Laminated
- Mounting type: Through hole
- Termination style: PC pin
- Physical dimensions: 57.15mm L × 47.63mm W × 41.28mm H (seated max)
- Weight: 0.9 lb (408.23 g)
Compliance & Status (Must Match):
- Manufacturer: Triad Magnetics
- Series: PC Mount World Series™
- Product status: Active
- RoHS compliance: ROHS3 Compliant
- REACH status: REACH Unaffected
The only permitted variation between the main part and substitute is packaging format (bulk versus box), which does not affect functional or mechanical compatibility.
Parameter Comparison
| Parameter | VPP20-1000-B (Main Part) | VPP20-1000 (Substitute) | Match Status |
|---|---|---|---|
| Manufacturer | Triad Magnetics | Triad Magnetics | Identical |
| Series | PC Mount World Series™ | PC Mount World Series™ | Identical |
| Power Rating | 20VA | 20VA | Identical |
| Primary Voltage | 115V, 230V | 115V, 230V | Identical |
| Secondary Voltage | Parallel 10V, Series 20V | Parallel 10V, Series 20V | Identical |
| Output Current (Max) | Parallel 2A, Series 1A | Parallel 2A, Series 1A | Identical |
| Core Type | Laminated | Laminated | Identical |
| Primary Windings | Dual | Dual | Identical |
| Secondary Windings | Dual | Dual | Identical |
| Center Tap | No | No | Identical |
| Mounting Type | Through Hole | Through Hole | Identical |
| Termination Style | PC Pin | PC Pin | Identical |
| Isolation Voltage | 4000Vrms | 4000Vrms | Identical |
| Dimensions (L × W × H) | 57.15mm × 47.63mm × 41.28mm | 57.15mm × 47.63mm × 41.28mm | Identical |
| Weight | 0.9 lb (408.23 g) | 0.9 lb (408.23 g) | Identical |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | Identical |
| Product Status | Active | Active | Identical |
| Packaging | Bulk | Box | Different |
Engineering Selection Recommendations
Both VPP20-1000-B and VPP20-1000 are active production parts from Triad Magnetics with identical electrical performance, mechanical specifications, and compliance certifications. Selection between these parts is determined by packaging and inventory requirements rather than technical performance.
VPP20-1000-B (Bulk Packaging): Select when bulk quantities are required for high-volume manufacturing operations or when component-level packaging is preferred for automated assembly processes.
VPP20-1000 (Box Packaging): Select when standard box packaging is required for distribution, inventory management, or when box packaging aligns with supply chain logistics and storage protocols.
Both parts maintain ROHS3 compliance and REACH unaffected status, confirming suitability for regulated markets and modern electronic equipment applications. No technical evaluation or performance testing is required when substituting between these parts, as all functional and mechanical parameters are identical.
Frequently Asked Questions (FAQ)
Q: Can VPP20-1000 be used as a direct replacement for VPP20-1000-B in existing circuit designs?
A: Yes. Both parts are electrically and mechanically identical. All voltage ratings, current ratings, winding configurations, isolation specifications, and physical dimensions match exactly. The only difference is packaging format (bulk versus box), which does not affect circuit performance or PCB mounting.
Q: Are there any compliance or certification differences between VPP20-1000-B and VPP20-1000?
A: No. Both parts carry identical ROHS3 compliance and REACH unaffected status. No additional testing or certification review is required when substituting between these parts.
Q: What is the significance of the packaging difference between bulk and box formats?
A: Packaging format affects logistics, storage, and handling procedures but does not impact electrical or mechanical performance. Bulk packaging is typically used for high-volume manufacturing environments, while box packaging is standard for distribution and smaller-quantity orders.
Q: Are both parts currently available in production?
A: Yes. Both VPP20-1000-B and VPP20-1000 are active production parts. Current inventory levels are 783 pieces (bulk) and 1445 pieces (box) respectively.
Q: Can these transformers be configured for different output voltages?
A: Yes. Both parts feature dual secondary windings that allow parallel connection (10V output at 2A maximum) or series connection (20V output at 1A maximum). The primary winding also supports dual voltage input (115V or 230V).
Q: What is the isolation voltage rating, and why is it important?
A: Both parts are rated for 4000Vrms isolation, which specifies the maximum voltage that can be safely applied between primary and secondary windings without breakdown. This rating is critical for safety-critical applications and regulatory compliance.
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