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SLD13U-017-B Equivalent & Substitute Parts
Part Overview
The SLD13U-017-B is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Littelfuse Inc., designed for transient overvoltage protection in electronic circuits. This component operates with a 13V reverse standoff voltage and provides 21.5V clamping at peak pulse current, delivering 5000W peak pulse power dissipation in a through-hole P600 axial package. The part maintains Active product status and carries AEC-Q101 automotive qualification with ROHS3 compliance. Equivalent and substitute parts are identified based on matching electrical characteristics and mechanical compatibility to ensure reliable circuit protection without redesign.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Voltage - Reverse Standoff (Typ) | 13V |
| Voltage - Breakdown (Min) | 14.4V |
| Voltage - Clamping (Max) @ Ipp | 21.5V |
| Current - Peak Pulse (10/1000µs) | 237.2A |
| Power - Peak Pulse | 5000W (5kW) |
| Operating Temperature Range | -55°C ~ 175°C (TJ) |
| Mounting Type | Through Hole |
| Package / Case | P600, Axial |
| Type | Zener |
| Unidirectional Channels | 1 |
Substitute Part Grouping Explanation
Substitute parts for the SLD13U-017-B are qualified based on the following critical parameters that determine functional equivalence:
- Voltage - Reverse Standoff: 13V (exact match required)
- Voltage - Clamping (Max) @ Ipp: 21.5V (exact match required)
- Power - Peak Pulse: 5000W (exact match required)
- Operating Temperature Range: -55°C ~ 175°C (exact match required)
- Type: Zener, Unidirectional (exact match required)
- Mounting Type: Through Hole (exact match required)
- RoHS Status: ROHS3 Compliant (compliance requirement)
The identified substitutes maintain these electrical and mechanical specifications across different manufacturers and packaging formats. Package variations (P600 vs. R-6) and peak pulse current tolerances within the specified range do not affect functional substitution capability.
Parameter Comparison
| Parameter | SLD13U-017-B | 5KP13A | 5KP13A-E3/54 | 5KP13A-TP |
|---|---|---|---|---|
| Manufacturer | Littelfuse Inc. | Littelfuse Inc. | Vishay General Semiconductor - Diodes Division | Micro Commercial Co |
| Voltage - Reverse Standoff (Typ) | 13V | 13V | 13V | 13V |
| Voltage - Breakdown (Min) | 14.4V | 14.4V | 14.4V | 14.4V |
| Voltage - Clamping (Max) @ Ipp | 21.5V | 21.5V | 21.5V | 21.5V |
| Current - Peak Pulse (10/1000µs) | 237.2A | 237.2A | 233A | Not Specified |
| Power - Peak Pulse | 5000W (5kW) | 5000W (5kW) | 5000W (5kW) | 5000W (5kW) |
| Operating Temperature Range | -55°C ~ 175°C (TJ) | -55°C ~ 175°C (TJ) | -55°C ~ 175°C (TJ) | -55°C ~ 175°C (TJ) |
| Mounting Type | Through Hole | Through Hole | Through Hole | Through Hole |
| Package / Case | P600, Axial | P600, Axial | P600, Axial | R-6, Axial |
| Type | Zener | Zener | Zener | Zener |
| Unidirectional Channels | 1 | 1 | 1 | 1 |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| Product Status | Active | Active | Active | Active |
Engineering Selection Recommendations
All identified substitute parts maintain Active product status and ROHS3 compliance, ensuring long-term availability and regulatory conformance. The 5KP13A and 5KP13A-E3/54 variants provide direct electrical and mechanical equivalence with P600 axial packaging. The 5KP13A-TP variant uses R-6 axial packaging, which differs mechanically from the P600 package; physical board layout verification is required if this variant is selected. Peak pulse current specifications (237.2A, 233A, or unspecified) remain within acceptable tolerance ranges for the 5000W power rating across all substitutes. Selection should prioritize availability, lead time, and cost considerations while maintaining the specified electrical performance envelope.
Frequently Asked Questions (FAQ)
Q: Can the 5KP13A-TP substitute for the SLD13U-017-B in existing designs?
A: The 5KP13A-TP is electrically equivalent but uses R-6 axial packaging instead of P600. Physical dimensions and lead spacing differ between these packages. Board layout and component footprint compatibility must be verified before substitution.
Q: What is the significance of the peak pulse current variation between substitutes?
A: Peak pulse current values (237.2A, 233A) represent the current level at which the clamping voltage is specified. Both values support the 5000W peak pulse power rating. Variations within this range do not affect functional protection capability.
Q: Are all substitutes suitable for automotive applications?
A: The SLD13U-017-B carries AEC-Q101 automotive qualification. The 5KP13A and 5KP13A-E3/54 are listed as Active products with ROHS3 compliance. Automotive qualification status for substitute parts should be confirmed with the respective manufacturer if AEC-Q101 certification is a design requirement.
Q: What packaging formats are available for these substitutes?
A: The SLD13U-017-B is supplied in Bulk packaging. Substitutes are available in Cut Tape (CT) packaging: 5KP13A and 5KP13A-E3/54 in P600 axial, and 5KP13A-TP in R-6 axial. Packaging format selection depends on procurement and assembly process requirements.
Q: Do all substitutes meet the same temperature operating range?
A: Yes, all identified substitutes operate across the -55°C ~ 175°C (TJ) temperature range, matching the SLD13U-017-B specification.
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