Request Quote
(Ships tomorrow)
FS16-1250 Equivalent & Substitute Parts Reference
Part Overview
The FS16-1250 is a laminated core power transformer manufactured by Triad Magnetics, rated at 20VA with dual primary and secondary windings. This through-hole mounted component is designed for applications requiring flexible voltage configurations through series and parallel winding connections. The part is currently in active production status with 1050 units in stock. Equivalent parts are identified when identical electrical performance and mechanical compatibility are required for design flexibility, supply chain continuity, or manufacturing process optimization.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Power Rating | 20VA |
| Primary Voltage Options | 115V, 230V |
| Secondary Voltage (Parallel) | 8V |
| Secondary Voltage (Series) | 16V |
| Output Current - Parallel Configuration | 2.5A |
| Output Current - Series Configuration | 1.25A |
| Core Type | Laminated |
| Primary Windings | Dual |
| Secondary Windings | Dual |
| Mounting Type | Through Hole |
| Termination Style | PC Pin |
| Isolation Voltage | 2500Vrms |
| Physical Dimensions | 57.15mm L × 47.63mm W × 36.50mm H (max) |
| Weight | 0.8 lb (362.87 g) |
| RoHS Compliance | ROHS3 Compliant |
Substitute Part Grouping Explanation
Substitution eligibility for the FS16-1250 is determined by strict equivalence across the following critical parameters:
Electrical Equivalence Requirements:
- Identical power rating: 20VA
- Matching primary voltage options: 115V and 230V dual configuration
- Matching secondary voltage outputs: 8V (parallel) and 16V (series)
- Matching output current specifications: 2.5A (parallel) and 1.25A (series)
- Identical isolation voltage: 2500Vrms
- Dual primary and dual secondary winding configuration
Mechanical Equivalence Requirements:
- Through-hole mounting type
- PC pin termination style
- Compatible physical dimensions within manufacturing tolerance
- Laminated core construction
Compliance Requirements:
- ROHS3 compliance status
- REACH unaffected status
- Active product status
The Hammond Manufacturing 162H16 meets all electrical and mechanical equivalence criteria and maintains identical compliance certifications, qualifying it as a direct substitute for the FS16-1250.
Parameter Comparison
| Parameter | FS16-1250 (Triad Magnetics) | 162H16 (Hammond Manufacturing) | Match Status |
|---|---|---|---|
| Power Rating | 20VA | 20VA | Identical |
| Primary Voltage | 115V, 230V | 115V, 230V | Identical |
| Secondary Voltage (Parallel) | 8V | 8V | Identical |
| Secondary Voltage (Series) | 16V | 16V | Identical |
| Output Current - Parallel | 2.5A | 2.5A | Identical |
| Output Current - Series | 1.25A | 1.25A | Identical |
| Core Type | Laminated | Laminated | Identical |
| Primary Windings | Dual | Dual | Identical |
| Secondary Windings | Dual | Dual | Identical |
| Mounting Type | Through Hole | Through Hole | Identical |
| Termination Style | PC Pin | PC Pin | Identical |
| Isolation Voltage | 2500Vrms | 2500Vrms | Identical |
| Dimensions (L × W) | 57.15mm × 47.63mm | 57.15mm × 47.63mm | Identical |
| Height (Max Seated) | 36.50mm | 36.52mm | Within tolerance |
| Weight | 0.8 lb (362.87 g) | 0.8 lb (362.87 g) | Identical |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | Identical |
| REACH Status | REACH Unaffected | REACH Unaffected | Identical |
| Product Status | Active | Active | Identical |
Engineering Selection Recommendations
Primary Part Selection (FS16-1250): The FS16-1250 is recommended as the primary selection when Triad Magnetics supply chain access is established and inventory availability is confirmed. This part maintains active production status with 1050 units currently in stock. ROHS3 compliance and REACH unaffected status satisfy regulatory requirements for industrial and commercial applications.
Substitute Part Selection (162H16): The Hammond Manufacturing 162H16 is qualified as a direct electrical and mechanical equivalent. Selection of this substitute is appropriate when:
- Triad Magnetics supply is unavailable or lead times exceed project requirements
- Design flexibility across multiple qualified suppliers is required
- Manufacturing process optimization benefits from dual-source qualification
Both parts maintain identical electrical performance specifications, mechanical compatibility, and regulatory compliance certifications. The 0.02mm height differential (36.50mm vs. 36.52mm) is within standard manufacturing tolerances and does not impact PCB layout or mechanical assembly.
Frequently Asked Questions (FAQ)
Q: Can the 162H16 be used as a direct replacement for the FS16-1250 in existing designs?
A: Yes. The 162H16 provides identical electrical performance across all voltage and current configurations. Through-hole mounting, PC pin termination, and physical dimensions are equivalent within manufacturing tolerance. No circuit redesign or PCB layout modification is required.
Q: What are the key parameters that determine substitution eligibility?
A: Substitution is based on strict equivalence in: power rating (20VA), primary voltage options (115V/230V), secondary voltage outputs (8V parallel, 16V series), output current ratings (2.5A parallel, 1.25A series), isolation voltage (2500Vrms), winding configuration (dual primary, dual secondary), mounting type (through-hole), termination style (PC pin), and compliance certifications (ROHS3, REACH unaffected).
Q: Are there packaging differences between these parts?
A: Yes. The FS16-1250 is supplied in box packaging, while the 162H16 is supplied in bulk packaging. This distinction affects inventory management and receiving procedures but does not impact component functionality or electrical performance.
Q: What is the significance of the height difference (36.50mm vs. 36.52mm)?
A: The 0.02mm difference is within standard manufacturing tolerance for through-hole transformers and does not affect PCB clearance, mechanical assembly, or thermal performance. Both parts are mechanically interchangeable in standard board layouts.
Q: Are both parts compliant with current regulatory standards?
A: Yes. Both the FS16-1250 and 162H16 are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for industrial and commercial electronic equipment.
Q: Can these parts be used in series or parallel winding configurations interchangeably?
A: Yes. Both parts feature identical dual primary and dual secondary winding configurations, supporting both series (16V, 1.25A) and parallel (8V, 2.5A) output modes without modification.
Alternative Parts
SJ6012L2TP
Littelfuse Inc.
6 Alternative Parts
JMK107BBJ476MA-RE
Taiyo Yuden
10 Alternative Parts
GMK107BBJ475MA-T
Taiyo Yuden
5 Alternative Parts
SJ6020N2ARP
Littelfuse Inc.
3 Alternative Parts
SJ6025R2ATP
Littelfuse Inc.
4 Alternative Parts
2474-05L
API Delevan Inc.
1 Alternative Parts
4590R-684K
API Delevan Inc.
1 Alternative Parts
CM6560R-334
API Delevan Inc.
1 Alternative Parts
CM6460-104
API Delevan Inc.
1 Alternative Parts
5526-12
API Delevan Inc.
1 Alternative Parts

