Request Quote
(Ships tomorrow)
SMAJ6.5AE3/TR13 Equivalent & Substitute Parts
Part Overview
The SMAJ6.5AE3/TR13 is a unidirectional transient voltage suppressor (TVS) diode manufactured by Microchip Technology, designed for general-purpose overvoltage protection in surface-mount applications. This component operates with a 6.5V reverse standoff voltage and provides 11.2V maximum clamping voltage at peak pulse current. The part is actively produced and RoHS3 compliant, with unlimited moisture sensitivity rating (MSL 1).
Equivalent and substitute parts are identified based on matching electrical characteristics (reverse standoff voltage, clamping voltage, peak pulse current) and mechanical compatibility (DO-214AC/SMA package, surface-mount configuration). Alternative sources and variants are necessary to address supply chain requirements, packaging preferences, and application-specific performance parameters.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Reverse Standoff Voltage (Typ) | 6.5 | V |
| Breakdown Voltage (Min) | 7.22 | V |
| Clamping Voltage (Max) @ Ipp | 11.2 | V |
| Peak Pulse Current (10/1000µs) | 44.7 | A |
| Peak Pulse Power | 500 | W |
| Package / Case | DO-214AC, SMA | — |
| Mounting Type | Surface Mount | — |
| Operating Temperature Range | -65 to 150 | °C (TJ) |
| Type | Zener | — |
| Unidirectional Channels | 1 | — |
| RoHS Status | ROHS3 Compliant | — |
| MSL Rating | 1 (Unlimited) | — |
Substitute Part Grouping Explanation
Substitute parts for the SMAJ6.5AE3/TR13 are classified into two functional groups based on electrical performance alignment:
Group 1: Direct Electrical Equivalents Parts matching the primary electrical specifications: 6.5V reverse standoff voltage, 11.2V clamping voltage, and 35.7A to 44.7A peak pulse current. These parts are interchangeable in applications where the exact clamping voltage and current handling are critical. Manufacturers include MDD, Diodes Incorporated, and Micro Commercial Co.
Group 2: Higher Performance Variants Parts with identical reverse standoff voltage (6.5V) but elevated clamping voltage (14.5V) and significantly higher peak pulse current (160A to 276A). These variants from STMicroelectronics provide enhanced transient suppression capability and are suitable for applications requiring greater energy dissipation or higher fault current handling.
Critical Substitution Parameters:
- Reverse Standoff Voltage: 6.5V (fixed across all substitutes)
- Package: DO-214AC/SMA (surface-mount compatibility)
- Mounting Type: Surface Mount
- Unidirectional Configuration: Single channel
- RoHS3 Compliance: Required
- MSL Rating: 1 (Unlimited)
Parameter Comparison
| Manufacturer Part Number | Manufacturer | Reverse Standoff (V) | Breakdown Min (V) | Clamping Max @ Ipp (V) | Peak Pulse Current | Peak Pulse Power (W) | Operating Temp (°C) | Package | RoHS Status |
|---|---|---|---|---|---|---|---|---|---|
| SMAJ6.5AE3/TR13 | Microchip Technology | 6.5 | 7.22 | 11.2 | 44.7A (10/1000µs) | 500 | -65 to 150 | DO-214AC, SMA | ROHS3 |
| SMA6J6.5A-TR | STMicroelectronics | 6.5 | 7.2 | 14.5 | 276A (8/20µs) | 600 | -55 to 175 | DO-214AC, SMA | ROHS3 |
| SMAJ6.5A | MDD | 6.5 | 7.22 | 11.2 | 35.7A (10/1000µs) | 400 | -50 to 150 | DO-214AC, SMA | ROHS3 |
| SMAJ6.5A-13-F | Diodes Incorporated | 6.5 | 7.22 | 11.2 | 35.7A (10/1000µs) | 400 | -55 to 150 | DO-214AC, SMA | ROHS3 |
| SMAJ6.5A-TP | Micro Commercial Co | 6.5 | 7.22 | 11.2 | 35.7A (10/1000µs) | 400 | -55 to 175 | DO-214AC, SMA | ROHS3 |
| SMAJ6.5A-TR | STMicroelectronics | 6.5 | 7.2 | 14.5 | 160A (8/20µs) | 400 | -55 to 150 | DO-214AC, SMA | ROHS3 |
Engineering Selection Recommendations
For Direct Replacement (Identical Electrical Performance): Select SMAJ6.5A-13-F (Diodes Incorporated), SMAJ6.5A-TP (Micro Commercial Co), or SMAJ6.5A (MDD) when the application requires matching clamping voltage (11.2V) and peak pulse current (35.7A to 44.7A). These parts maintain the same electrical protection profile as the SMAJ6.5AE3/TR13. All candidates are RoHS3 compliant with MSL 1 rating and active product status.
For Enhanced Performance Applications: Select SMAJ6.5A-TR or SMA6J6.5A-TR (STMicroelectronics) when the circuit design permits higher clamping voltage (14.5V) and requires greater peak pulse current handling (160A to 276A). These variants provide superior transient energy dissipation and are suitable for high-fault-current environments. Both maintain RoHS3 compliance and active production status.
Temperature Range Considerations: SMAJ6.5A-TP (Micro Commercial Co) extends the upper operating temperature to 175°C, compared to 150°C for the primary part. SMA6J6.5A-TR and SMAJ6.5A-TR (STMicroelectronics) also support 175°C operation, offering thermal margin for high-ambient applications.
Supply Chain and Packaging: All substitute parts are available in tape-and-reel or cut-tape packaging suitable for automated assembly. Inventory levels vary by manufacturer and distributor; verify availability for production requirements.
Frequently Asked Questions (FAQ)
Q: Can SMAJ6.5A-13-F be used as a direct replacement for SMAJ6.5AE3/TR13? A: Yes. Both parts share identical reverse standoff voltage (6.5V), breakdown voltage (7.22V), clamping voltage (11.2V), and peak pulse current (35.7A to 44.7A). Package compatibility (DO-214AC/SMA) and RoHS3 compliance are matched. Operating temperature range differs slightly (-55°C to 150°C vs. -65°C to 150°C), which does not affect most applications.
Q: What is the difference between the Microchip SMAJ6.5AE3/TR13 and the STMicroelectronics SMA6J6.5A-TR? A: The primary difference is clamping voltage and peak pulse current. The STMicroelectronics part clamps at 14.5V with 276A peak pulse current, compared to 11.2V and 44.7A for the Microchip part. The STMicroelectronics variant provides higher energy dissipation (600W vs. 500W) and supports extended temperature operation (-55°C to 175°C). Selection depends on circuit protection requirements.
Q: Are all substitute parts in the same package? A: Yes. All listed substitute parts use the DO-214AC (SMA) surface-mount package, ensuring mechanical and footprint compatibility with the SMAJ6.5AE3/TR13.
Q: Which substitute part has the widest operating temperature range? A: SMAJ6.5A-TP (Micro Commercial Co) and the STMicroelectronics variants (SMA6J6.5A-TR and SMAJ6.5A-TR) support -55°C to 175°C operation, compared to -65°C to 150°C for the primary part. The Microchip part offers the lowest minimum temperature (-65°C).
Q: Can I use a higher-clamping-voltage part (14.5V) in place of the 11.2V part? A: Higher clamping voltage provides less aggressive transient suppression. The circuit must tolerate the increased voltage spike. Use higher-clamping-voltage variants only when the application design permits elevated transient voltages or when enhanced current-handling capability is the primary requirement.
Q: Are all substitute parts RoHS3 compliant? A: Yes. All listed substitute parts carry RoHS3 compliance certification and MSL 1 (unlimited moisture sensitivity) rating, matching the environmental and regulatory status of the SMAJ6.5AE3/TR13.
Q: What is the difference between tape-and-reel (TR) and cut-tape (CT) packaging? A: Tape-and-reel packaging is supplied on continuous reels for high-volume automated assembly. Cut-tape packaging is supplied in shorter tape segments for lower-volume or mixed-component orders. Both formats use the same DO-214AC/SMA component footprint and are electrically identical.
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