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Taiwan Semiconductor Corporation SMDJ60A
- Part No.:
- SMDJ60A
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMDJ60A.pdf
- Description:
- TVS DIODE 60VWM 96.8VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,986
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Product details
Overview
SMDJ60A from Taiwan Semiconductor is a unidirectional 3000W surface-mount transient voltage suppressor (TVS) diode in DO-214AB (SMC) package, with 66.7V minimum breakdown voltage (VBR), 60V working stand-off voltage (VWM), and 96.8V maximum clamping voltage (VC) at 31.0A peak pulse current. It protects telecom power rails and industrial I/O interfaces against ISO 7637-2 Pulse 1/2a/2b/3a/3b transients.
For engineers reviewing the SMDJ60A datasheet, SMDJ60A pinout, SMDJ60A application, or SMDJ60A equivalent, key selection criteria include its 3000W peak pulse power rating, 1.0ps typical response time, -55°C to +175°C operating junction temperature range, and compliance with J-STD-020 moisture sensitivity level 1 and RoHS/halogen-free requirements.
Technical Context
The SMDJ60A operates as a unidirectional avalanche diode, triggered when reverse voltage exceeds VBR (66.7–73.7V), clamping transient energy into the PCB ground path. Its glass-passivated junction ensures stable leakage (<1µA at 60V) and robust surge handling up to 300A non-repetitive forward surge (IFSM).
Thermally, it features RθJA = 75°C/W and RθJL = 15°C/W, enabling reliable operation under sustained ambient temperatures up to 125°C when properly mounted on ≥1 sq-in copper pour. It meets ISO 7637-2 for automotive load-dump immunity without external series impedance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 60 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR @ IT=1mA | 66.7–73.7 V - Breakdown threshold range defining turn-on consistency across production lot |
| VC @ IPPM=31.0A | 96.8 V - Clamped voltage during 10/1000µs transient, limiting downstream IC stress |
| PPK | 3000 W - Peak pulse power dissipation capability per single 1ms event |
| IFSM | 300 A - Non-repetitive forward surge current tolerance for accidental polarity reversal |
| TJ Range | -55°C to +175°C - Junction temperature limits enabling use in under-hood or industrial motor drive environments |
Pinout & Package
Package: DO-214AB (SMC), surface-mount, cathode-banded unidirectional configuration. Weight: 0.290g. Molding compound UL 94V-0 rated. Matte tin-plated leads, J-STD-002 solderable.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input/Line side | Connected to protected signal or power line; conducts during forward surge events |
| Cathode | Clamp/Ground return | Connected to system ground or low-impedance return path; carries full transient current during clamping |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling |
| ISO 7637-2 compliance | Validated for Pulse 1 (inductive switch-off), Pulse 2a/2b (battery disconnect), and Pulse 3a/3b (capacitive coupling) |
| 1.0ps typical response time | Clamps ESD and fast transients before sensitive logic or analog circuitry is damaged |
| J-STD-020 Level 1 moisture sensitivity | Zero bake requirement prior to reflow; compatible with standard SMT assembly lines |
Applications
| Automotive Power Distribution | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting 24V CAN bus power inputs in vehicle body control modules against load dump and jump-start surges. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between fused battery rail and DC-DC input, clamping transients above 60V. Use Value: Limits clamped voltage to 96.8V, preventing overvoltage damage to downstream 36V-rated regulators and CAN transceivers. | Use Scenario: Safeguarding 24V digital input channels of programmable logic controllers against field-wiring induced transients. IC Role / Device Role / Timing Role: Standoff protection device mounted at connector entry point, shunting surge energy to chassis ground. Use Value: Withstands repeated 3000W pulses per ISO 7637-2 Pulse 2b, extending field service life beyond 10 years in factory automation. |
| Telecom AC/DC Adapter Output | Renewable Energy Charge Controller |
Use Scenario: Secondary-side overvoltage suppression on 48V telecom rectifier outputs exposed to lightning-induced surges on building wiring. IC Role / Device Role / Timing Role: Final-stage TVS connected between +48V output and system ground, activated only during abnormal line conditions. Use Value: 96.8V clamping ensures downstream 50V-rated DC-DC converters remain within absolute maximum ratings during 10/1000µs surges. | Use Scenario: Input protection for solar charge controllers interfacing with 60V nominal PV arrays subject to rapid irradiance changes and grid-switching transients. IC Role / Device Role / Timing Role: Bidirectional-capable variant not used; unidirectional SMDJ60A applied with reverse polarity blocking to prevent array backfeed during fault. Use Value: 60V VWM aligns with PV open-circuit voltage derating margin, while 3000W rating handles worst-case MPPT switching spikes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ60A (Bourns) | Same DO-214AA package; lower PPK = 600W; VC = 96.8V at 6.2A | Not suitable for ISO 7637-2 Pulse 1/2a where >1000W required | Select SMDJ60A when 3000W surge immunity is mandated by system-level test plan |
| 1.5KE60A (ON Semiconductor) | Through-hole DO-15; PPK = 1500W; VC = 96.8V at 15.5A; slower thermal response | Requires PCB through-hole real estate and manual assembly; incompatible with high-density SMT layouts | Choose SMDJ60A for automated placement, space-constrained boards, and automotive-grade thermal performance |
Compared with SMBJ60A and 1.5KE60A, the SMDJ60A delivers triple the peak power rating in an SMT package with superior thermal resistance (RθJL = 15°C/W), making it the only option qualified for under-hood automotive power rail protection per ISO 7637-2.
Availability
SMDJ60A is available at Aetrix Electronics and suitable for automotive power distribution, industrial PLC I/O protection, and telecom AC/DC adapter output applications requiring stable component supply, full traceability, and long-lifecycle support.
Supply support for SMDJ60A includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Taiwan Semiconductor Corporation (TSC) is a vertically integrated Taiwanese semiconductor manufacturer specializing in discrete power devices, TVS diodes, and rectifiers since 1979.
The SMDJ series was developed specifically for high-energy transient suppression in automotive and industrial environments, emphasizing ruggedness, ISO 7637-2 compliance, and SMT manufacturability.
FAQ
What is the maximum clamping voltage of the SMDJ60A under standard test conditions?
The SMDJ60A has a maximum clamping voltage (VC) of 96.8 V when subjected to a 10/1000 µs waveform with a peak pulse current (IPPM) of 31.0 A. This value is measured at TA = 25°C and defines the upper voltage limit imposed on protected circuitry during transient events. The SMDJ60A maintains this clamping performance consistently across its specified junction temperature range.
Is the SMDJ60A suitable for bidirectional transient protection?
No, the SMDJ60A is a unidirectional TVS diode intended for DC line protection with defined polarity. For bidirectional applications, the SMDJ60CA variant must be used - it shares the same package and clamping characteristics but conducts in both directions. Using SMDJ60A in reverse-biased AC circuits risks permanent failure due to forward conduction during negative half-cycles.
Does the SMDJ60A require special handling during PCB assembly?
No, the SMDJ60A is rated J-STD-020 Moisture Sensitivity Level 1, meaning it can be stored indefinitely at ≤30°C/60% RH and placed directly into reflow without baking. Its matte tin-plated leads comply with J-STD-002 for solderability, and the DO-214AB (SMC) package supports standard pick-and-place and reflow profiles used for automotive-grade SMT production.
How does the SMDJ60A compare to the SMDJ64A in terms of voltage ratings?
The SMDJ60A has a VWM of 60 V and VBR range of 66.7–73.7 V, whereas the SMDJ64A specifies VWM = 64 V and VBR = 71.1–78.6 V. Both share identical 3000W PPK, 96.8V VC, and DO-214AB packaging. Select SMDJ60A when system nominal voltage is 48–60V with tight VWM margin; choose SMDJ64A for 60–72V rails needing higher standoff headroom.
Can the SMDJ60A replace older P6KE60A devices in existing designs?
The SMDJ60A is not a direct replacement for through-hole P6KE60A due to package (DO-214AB vs. DO-15), mounting method, and thermal profile differences. While electrical parameters overlap, the SMDJ60A offers 5× higher peak power (3000W vs. 600W) and superior thermal resistance. Migration requires PCB layout revision and validation of clamping behavior under actual system transients.
SMDJ60A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-214AB, SMC
- Series:
- SMDJ
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 60V
- Voltage - Breakdown (Min):
- 66.7V
- Voltage - Clamping (Max) @ Ipp:
- 96.8V
- Current - Peak Pulse (10/1000µs):
- 31A
- Power - Peak Pulse:
- 3000W (3kW)
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
SMDJ60A FAQ
1.How can I place an order for SMDJ60A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMDJ60A on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for SMDJ60A reliable?
The price and inventory of SMDJ60A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMDJ60A is usually 5 days.
3.What payment methods are accepted for SMDJ60A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMDJ60A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMDJ60A?
SMDJ60A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMDJ60A order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for SMDJ60A?
For technical support, including SMDJ60A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMDJ60A requirements.
6.How does Aetrix verify that SMDJ60A is sourced from the original manufacturer or authorized distributors?
All SMDJ60A products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SMDJ60A meets industry standards.
7.What is the process for return or replacement of SMDJ60A?
All SMDJ60A units undergo pre-shipment inspection (PSI). If there is an issue with SMDJ60A, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The SMDJ60A part is unused and in its original packaging.
Return procedure for SMDJ60A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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