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SMLJ6.0CA-TP Equivalent & Substitute Parts
Part Overview
The SMLJ6.0CA-TP is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Micro Commercial Co, designed for general-purpose interface protection applications. This surface-mount component operates with a 6V reverse standoff voltage and provides 3000W peak pulse power dissipation capability. The part is currently in active production status with 716 units available in inventory.
Identifying equivalent and substitute parts becomes necessary when the primary part experiences supply constraints, extended lead times, or when design flexibility is required across multiple sourcing channels while maintaining identical electrical and mechanical performance characteristics.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Voltage - Reverse Standoff (Typ) | 6 | V |
| Voltage - Breakdown (Min) | 6.67 | V |
| Voltage - Clamping (Max) @ Ipp | 10.3 | V |
| Current - Peak Pulse (10/1000µs) | 291.3 | A |
| Power - Peak Pulse | 3000 | W |
| Operating Temperature Range | -55 to 175 | °C (TJ) |
| Package / Case | DO-214AB, SMC | — |
| Mounting Type | Surface Mount | — |
| Bidirectional Channels | 1 | — |
| Type | Zener | — |
Substitute Part Grouping Explanation
Substitution eligibility for the SMLJ6.0CA-TP is determined by strict equivalence across the following critical parameters:
Electrical Parameters (Must Match):
- Voltage - Reverse Standoff: 6V
- Voltage - Breakdown (Min): 6.67V
- Voltage - Clamping (Max) @ Ipp: 10.3V
- Current - Peak Pulse (10/1000µs): 291.3A
- Power - Peak Pulse: 3000W
Mechanical Parameters (Must Match):
- Package / Case: DO-214AB, SMC
- Mounting Type: Surface Mount
- Bidirectional Channels: 1
Functional Parameters (Must Match):
- Type: Zener
- Applications: General Purpose
The SMDJ6.0CA manufactured by Alpha & Omega Semiconductor Inc. meets all critical electrical and mechanical requirements for direct substitution. Both parts share identical voltage ratings, peak pulse current specifications, and power dissipation capabilities. Both utilize the DO-214AB surface-mount package, ensuring mechanical and thermal compatibility in PCB layouts.
Parameter Comparison
| Parameter | SMLJ6.0CA-TP (Micro Commercial Co) | SMDJ6.0CA (Alpha & Omega Semiconductor) | Match Status |
|---|---|---|---|
| Voltage - Reverse Standoff (Typ) | 6V | 6V | Equivalent |
| Voltage - Breakdown (Min) | 6.67V | 6.67V | Equivalent |
| Voltage - Clamping (Max) @ Ipp | 10.3V | 10.3V | Equivalent |
| Current - Peak Pulse (10/1000µs) | 291.3A | 291.3A | Equivalent |
| Power - Peak Pulse | 3000W | 3000W | Equivalent |
| Operating Temperature Range | -55°C to 175°C (TJ) | -55°C to 150°C (TJ) | SMDJ6.0CA Range Narrower |
| Package / Case | DO-214AB, SMC | DO-214AB, SMC | Equivalent |
| Mounting Type | Surface Mount | Surface Mount | Equivalent |
| Bidirectional Channels | 1 | 1 | Equivalent |
| Type | Zener | Zener | Equivalent |
| Product Status | Active | Active | Equivalent |
Engineering Selection Recommendations
SMLJ6.0CA-TP Selection Criteria:
- Primary choice when Micro Commercial Co sourcing is preferred or contractually specified
- Current inventory: 716 units available
- Operating temperature requirement up to 175°C (TJ)
- REACH Unaffected compliance status
SMDJ6.0CA Selection Criteria:
- Suitable substitute when Alpha & Omega Semiconductor supply chain is preferred
- Higher inventory availability: 7090 units in stock
- Operating temperature range: -55°C to 150°C (TJ) — verify application does not require operation above 150°C
- RoHS3 Compliant certification (additional compliance advantage)
- REACH Unaffected compliance status
Both parts are active products with equivalent electrical performance. Selection between them depends on supply availability, inventory requirements, and operating temperature constraints. The SMDJ6.0CA offers superior inventory depth but operates within a narrower maximum temperature range.
Frequently Asked Questions (FAQ)
Q: Can SMDJ6.0CA directly replace SMLJ6.0CA-TP in all applications?
A: Direct substitution is valid for applications operating within -55°C to 150°C (TJ). Applications requiring operation above 150°C must use SMLJ6.0CA-TP, which is rated to 175°C (TJ). All electrical parameters and package specifications are identical.
Q: Are there any package or footprint differences between these parts?
A: No. Both parts use the DO-214AB surface-mount package (SMC). PCB footprints, solder pad layouts, and thermal characteristics are identical. No design modifications are required for substitution.
Q: What is the significance of the identical 10.3V clamping voltage and 291.3A peak pulse current?
A: These parameters define the transient protection performance. Identical values ensure both parts provide equivalent voltage suppression and current handling during transient events, making them functionally interchangeable for circuit protection.
Q: Does the SMDJ6.0CA's RoHS3 compliance provide an advantage over SMLJ6.0CA-TP?
A: RoHS3 compliance indicates adherence to Restriction of Hazardous Substances regulations. If your application or supply chain requires RoHS3 certification, SMDJ6.0CA is the appropriate choice. Both parts are REACH Unaffected.
Q: How do I determine which part to order given the inventory differences?
A: Evaluate supply requirements against lead time and availability. SMDJ6.0CA offers 7090 units versus 716 units for SMLJ6.0CA-TP. For high-volume production, SMDJ6.0CA provides greater supply security. Verify operating temperature requirements do not exceed 150°C (TJ) before selecting SMDJ6.0CA.
Q: Are there any electrical performance differences in transient suppression between these parts?
A: No. Both parts are specified with identical voltage ratings (6V standoff, 6.67V breakdown minimum, 10.3V clamping maximum) and identical peak pulse current (291.3A). Transient suppression performance is equivalent.
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