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Taiwan Semiconductor Corporation SMDJ60CAH
- Part No.:
- SMDJ60CAH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMDJ60CAH.pdf
- Description:
- TVS DIODE 60VWM 96.8VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,116
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Product details
Overview
SMDJ60CAH from Taiwan Semiconductor is a bidirectional 3000W surface-mount transient voltage suppressor (TVS) diode in DO-214AB (SMC) package, with a working stand-off voltage of 60 V, breakdown voltage range of 66.7–73.7 V, and clamping voltage of 96.8 V at 31.0 A peak pulse current. It is AEC-Q101 qualified and meets ISO 7637-2 Pulse 1/2a/2b/3a/3b for automotive load-dump and switching transient protection.
For engineers reviewing the SMDJ60CAH datasheet, SMDJ60CAH pinout, SMDJ60CAH application, or SMDJ60CAH equivalent, key selection criteria include bidirectional clamping performance under 10/1000 µs transients, junction temperature rating up to +175 °C, compliance with automotive EMC standards, and compatibility with automated SMT placement on high-reliability PCBs.
Technical Context
The SMDJ60CAH operates as a bidirectional avalanche diode, symmetrically clamping voltage surges in both polarities without requiring polarity orientation during placement. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1 µA at 60 V), while its 3000 W peak pulse power rating supports high-energy transients per IEC 61000-4-5 and ISO 7637-2.
Thermally, it features a junction-to-lead resistance of 15 °C/W and junction-to-ambient resistance of 75 °C/W, enabling effective heat dissipation in compact automotive and industrial PCB layouts. The device is rated for continuous operation from –55 °C to +175 °C and passes JESD201 Class 2 whisker testing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 60 V - Maximum continuous reverse operating voltage before clamping begins; defines system-level DC bus immunity threshold. |
| VBR @ IT=1 mA | 66.7–73.7 V - Measured breakdown voltage range; ensures reliable turn-on margin above VWM under production tolerance. |
| VC @ IPPM=31.0 A | 96.8 V - Clamped voltage during 10/1000 µs surge; determines maximum stress imposed on downstream ICs. |
| PPK | 3000 W - Peak pulse power handling capability; supports high-energy transients like ISO 7637-2 Pulse 5a (load dump). |
| TJ max | +175 °C - Maximum junction temperature; enables use in under-hood automotive environments without derating. |
| Package | DO-214AB (SMC) - Standardized surface-mount outline with 7.11 mm × 6.22 mm footprint and 2.3 mm height; compatible with IPC-7351B land patterns. |
Pinout & Package
DO-214AB (SMC) package: molded plastic case with matte tin-plated leads, polarity indicated by cathode band (not functional for bidirectional SMDJ60CAH), weight ≈ 0.290 g, UL 94V-0 rated compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional avalanche junction terminals | No functional polarity - either terminal serves as anode or cathode depending on transient polarity; eliminates orientation constraints during placement. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing - required for engine control, ADAS, and body electronics. |
| ISO 7637-2 compliance | Withstands Pulse 1 (inductive load disconnect), Pulse 2a/2b (switching transients), and Pulse 3a/3b (line capacitance discharge) without degradation. |
| Fast response time | <1.0 ps junction response - clamps before most microcontrollers or CAN transceivers can be damaged by fast-rising ESD or lightning-induced spikes. |
| Moisture sensitivity level 1 | Unlimited floor life at ≤30 °C/60% RH - no baking required prior to reflow, reducing manufacturing overhead. |
Applications
| Automotive Power Distribution | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting 12 V/24 V power rails in junction boxes, battery management systems, and lighting modules against load dump and alternator transients. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed upstream of DC-DC converters and power supervisors. Use Value: Limits rail voltage to ≤96.8 V during ISO 7637-2 Pulse 5a events, preventing latch-up or permanent damage to downstream PMICs and MCUs. | Use Scenario: Shielding digital input/output channels in programmable logic controllers exposed to inductive kickback from solenoids and contactors. IC Role / Device Role / Timing Role: Bidirectional transient shunt across signal lines referenced to 24 V supply or chassis ground. Use Value: Absorbs >3000 W of energy from 10/1000 µs surges without failure, maintaining signal integrity and avoiding false triggering of digital inputs. |
| Telecom Base Station Power | Consumer Appliance Motor Control |
Use Scenario: Safeguarding 48 V DC power feeds in remote radio units and backhaul equipment subjected to lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: Secondary-level TVS placed after primary MOV-based protection to handle residual fast transients. Use Value: Clamps residual surges to <100 V within picoseconds, protecting sensitive RF front-end ICs and Ethernet PHYs from cumulative degradation. | Use Scenario: Protecting gate drivers and MCU I/O in washing machine motor inverters from commutation spikes generated by BLDC motors. IC Role / Device Role / Timing Role: Localized clamp across half-bridge driver supply pins and bootstrap capacitors. Use Value: Suppresses repetitive 30–100 ns spikes with minimal capacitance (typ. <200 pF), avoiding interference with PWM timing or gate drive fidelity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SAC60CA | Same 60 V VWM, but lower PPK = 1500 W; higher VC = 103 V at 15.5 A. | Not suitable for ISO 7637-2 Pulse 5a; limited to lower-energy transients like ESD or Pulse 1/2. | Select only when board space or cost constraints preclude 3000 W rating and surge energy is confirmed ≤1500 W. |
| SMCJ60CA | Identical electrical specs and DO-214AB package; manufactured by Vishay, same thermal and clamping performance. | No functional difference; approved for identical automotive and industrial use cases. | Drop-in alternative with identical footprint, ratings, and qualification - suitable for dual-sourcing or supply chain diversification. |
Compared with SAC60CA, SMDJ60CAH delivers double the peak power handling and tighter clamping, making it essential for harsh automotive environments; versus SMCJ60CA, it offers equivalent performance with Taiwan Semiconductor's AEC-Q101 test report traceability and regional supply chain support.
Availability
SMDJ60CAH is available at Aetrix Electronics and suitable for automotive power distribution, industrial PLC I/O protection, and telecom base station power systems requiring stable component supply across multi-year production cycles.
Supply support for SMDJ60CAH 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 semiconductor manufacturer specializing in discrete power devices, TVS diodes, rectifiers, and MOSFETs, with global ISO/TS 16949 and AEC-Q200 certified production lines.
The SMDJ series was designed specifically for high-reliability automotive and industrial transient suppression, emphasizing robustness under repeated surge stress, extended temperature operation, and seamless integration into automated SMT assembly lines.
FAQ
What does the "CAH" suffix indicate in SMDJ60CAH?
The "CAH" suffix denotes a bidirectional configuration - meaning the SMDJ60CAH provides symmetrical clamping for positive and negative transients without polarity sensitivity. Unlike unidirectional "AH" variants, it has no cathode marking and functions identically regardless of terminal orientation on the PCB. This makes SMDJ60CAH ideal for AC-coupled lines or differential buses where voltage polarity reversal is possible.
Is SMDJ60CAH suitable for ISO 7637-2 Pulse 5a (load dump) protection?
Yes, SMDJ60CAH is explicitly rated for ISO 7637-2 Pulse 5a compliance due to its 3000 W peak pulse power rating and 96.8 V clamping voltage at 31.0 A. When used with appropriate series impedance (e.g., line resistance or ferrite), it limits the 12 V system rail to safe levels during 100 V/400 ms load dump events. Its +175 °C junction rating further ensures stability under sustained thermal stress during repeated pulses.
What is the maximum steady-state power dissipation for SMDJ60CAH?
The maximum steady-state power dissipation (PD) for SMDJ60CAH is 6.5 W at TA = 25 °C, derating linearly above that ambient temperature per the pulse derating curve in the datasheet. This value reflects continuous DC or low-frequency power handling - not transient surge capability - and must be evaluated alongside PCB copper area, airflow, and thermal vias to avoid exceeding the +175 °C maximum junction temperature.
Does SMDJ60CAH require special PCB layout considerations compared to unidirectional TVS diodes?
No special layout is needed beyond standard high-current TVS practices: short, wide traces to minimize inductance, direct connection to protected node and ground plane, and avoidance of vias in the main current path. Because SMDJ60CAH is bidirectional, there is no cathode marking or polarity-dependent routing - simplifying layout and eliminating orientation errors during assembly. Its DO-214AB footprint matches industry-standard SMC pads.
How does SMDJ60CAH compare to SMDJ60AH in terms of application suitability?
SMDJ60AH is unidirectional and requires correct cathode orientation toward the protected rail's positive side, limiting use to DC-only lines with known polarity. SMDJ60CAH replaces it where bidirectional protection is needed - such as across AC-coupled data lines, transformer-isolated supplies, or differential pairs - without redesigning layout or adding external polarity logic. Both share identical VWM, VBR, and PPK, but only SMDJ60CAH supports symmetrical clamping.
SMDJ60CAH 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:
- -
- Bidirectional Channels:
- 1
- 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:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
SMDJ60CAH FAQ
1.How can I place an order for SMDJ60CAH through Aetrix?
Please submit a Request for Quotation (RFQ) for SMDJ60CAH 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 SMDJ60CAH reliable?
The price and inventory of SMDJ60CAH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMDJ60CAH is usually 5 days.
3.What payment methods are accepted for SMDJ60CAH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMDJ60CAH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMDJ60CAH?
SMDJ60CAH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMDJ60CAH 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 SMDJ60CAH?
For technical support, including SMDJ60CAH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMDJ60CAH requirements.
6.How does Aetrix verify that SMDJ60CAH is sourced from the original manufacturer or authorized distributors?
All SMDJ60CAH 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 SMDJ60CAH meets industry standards.
7.What is the process for return or replacement of SMDJ60CAH?
All SMDJ60CAH units undergo pre-shipment inspection (PSI). If there is an issue with SMDJ60CAH, 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 SMDJ60CAH part is unused and in its original packaging.
Return procedure for SMDJ60CAH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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