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Vishay General Semiconductor - Diodes Division SMAJ60CAHE3/61
- Part No.:
- SMAJ60CAHE3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMAJ60CAHE3/61.pdf
- Description:
- TVS DIODE 60VWM 96.8VC DO214AC
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
SMAJ60CAHE3/61 from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMA (DO-214AC) package, designed for robust ESD and surge protection on signal/power lines. It features 60 V standoff voltage (VWM), 66.7–73.7 V breakdown range (VBR), 96.8 V max clamping voltage (VC) at 4.1 A peak pulse current, and 400 W peak pulse power (10/1000 μs). It is AEC-Q101 qualified and used to protect automotive sensor interfaces and industrial I/O circuits against inductive switching transients.
For engineers reviewing the SMAJ60CAHE3/61 datasheet, SMAJ60CAHE3/61 pinout, SMAJ60CAHE3/61 application, or SMAJ60CAHE3/61 equivalent, key selection criteria include bidirectional clamping behavior, AEC-Q101 qualification status, 96.8 V clamping voltage at rated IPPM, thermal resistance (RθJA = 120 °C/W), and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode operates symmetrically in both directions due to its bidirectional CA construction, enabling protection of AC-coupled or differential signal paths without polarity concerns. Its glass-passivated junction ensures stable leakage (<1.0 μA at VWM) and fast response time (<1.0 ns), critical for suppressing sub-microsecond ESD events per IEC 61000-4-2.
The device delivers 400 W peak pulse power up to 78 V and derates to 300 W above that threshold, with thermal performance governed by RθJL = 30 °C/W (junction-to-lead) and maximum junction temperature of +150 °C. It meets J-STD-020 MSL Level 1 and JEDEC JESD201 Class 2 whisker resistance requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 60 V - Maximum continuous reverse operating voltage before clamping begins; defines safe operating margin for 48 V automotive systems. |
| VBR (min/max) | 66.7 V / 73.7 V - Measured at 1 mA test current; ensures reliable triggering above normal system transients but below IC damage thresholds. |
| VC @ IPPM | 96.8 V @ 4.1 A - Clamped voltage during 10/1000 μs surge; determines protected circuit's maximum stress level under worst-case surge. |
| PPPM | 400 W - Peak pulse power handling (≤78 V); supports repetitive surge immunity in industrial control I/O with 0.01% duty cycle. |
| IFSM | 40 A - Non-repetitive forward surge rating (8.3 ms half-sine); enables survival of accidental DC overvoltage faults in unidirectional configurations. |
| TJ max | +150 °C - Maximum junction temperature; allows operation in under-hood automotive environments with proper PCB thermal relief. |
| RθJA | 120 °C/W - Junction-to-ambient thermal resistance on standard 0.2" × 0.2" copper pads; informs required board-level thermal design for sustained power dissipation. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile plastic case with matte tin-plated leads. Complies with UL 94 V-0 flammability rating and J-STD-002 solderability standards. Bidirectional configuration has no polarity marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Transient conduction path | Both terminals behave identically under reverse or forward surge; no cathode band marking; enables placement without orientation check. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control modules and ADAS sensor interfaces per stress test requirements. |
| 400 W peak pulse power (≤78 V) | Withstands ISO 7637-2 Pulse 1/2a/3a surges and IEC 61000-4-5 Combination Wave (1.2/50 μs + 8/20 μs) up to specified energy levels. |
| Low clamping ratio (VC/VBR ≈ 1.37) | Minimizes overvoltage exposure to downstream ICs-critical for protecting 65 V-rated CAN transceivers or RS-485 drivers. |
| MSL Level 1, 260 °C reflow compatible | Enables single-pass lead-free reflow assembly without moisture sensitivity concerns or baking requirements. |
| Glass passivated junction | Ensures long-term stability of leakage current (<1.0 μA at 60 V) and breakdown voltage across temperature and lifetime. |
Applications
| Automotive Sensor Protection | Industrial PLC Analog Input |
|---|---|
Use Scenario: Protecting LIN/CAN bus nodes and temperature/pressure sensors in engine compartments exposed to load dump and inductive kick. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed across signal line and ground to shunt transients before reaching MCU analog front-end or transceiver. Use Value: Limits voltage excursion to ≤96.8 V during 4.1 A surge, preserving integrity of 5 V or 3.3 V sensor supply rails and ADC inputs. |
Use Scenario: Safeguarding 4–20 mA current loop inputs in programmable logic controllers subjected to field wiring surges and ESD. IC Role / Device Role / Timing Role: Parallel-connected TVS across input terminals to absorb fast-rising transients while maintaining loop accuracy during normal operation. Use Value: Maintains <1.0 μA leakage at 60 V standby, preventing offset errors in precision current measurement circuits. |
| Telecom Line Interface | Consumer Power Adapter Output |
Use Scenario: Surge suppression on Ethernet PHY differential pairs or DSL line drivers where bidirectional symmetry is required. IC Role / Device Role / Timing Role: Differential-mode TVS pair (one per line) referenced to common-mode ground, leveraging symmetrical clamping. Use Value: Responds in <1 ns to ESD events per IEC 61000-4-2 Level 4 (8 kV contact), preventing latch-up in Gigabit Ethernet PHYs. |
Use Scenario: Secondary-side overvoltage protection on 12 V/19 V DC outputs of wall adapters used in laptops and monitors. IC Role / Device Role / Timing Role: Final-stage clamp between output rail and ground to catch regulator failure or transient coupling from primary side. Use Value: Withstands 400 W surges without degradation, ensuring adapter remains safe even after repeated lightning-induced spikes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ60CA-M3/61 | Halogen-free, RoHS-compliant variant; identical electrical specs and AEC-Q101 qualification; same SMA package. | No functional difference; selected when halogen-free compliance is mandated by OEM environmental policy. | Choose SMAJ60CA-M3/61 if halogen-free materials are required for final product certification. |
| SMCJ60CAHE3/61 | Higher power rating (1500 W vs. 400 W); larger SMC (DO-214AB) package; same VWM, VBR, and VC specs. | Used where higher surge repetition or longer duration transients (e.g., ISO 7637-2 Pulse 5a) exceed SMAJ60CAHE3/61 capability. | Choose SMCJ60CAHE3/61 only when system-level surge testing requires >400 W pulse handling and board space permits larger footprint. |
Compared with SMAJ60CA-M3/61, the SMAJ60CAHE3/61 offers identical protection performance with standard RoHS compliance; compared with SMCJ60CAHE3/61, it trades lower surge capacity for smaller size and lower thermal mass-ideal for space-constrained automotive modules where 400 W suffices.
Availability
SMAJ60CAHE3/61 is available at Aetrix Electronics and suitable for automotive electronics, industrial I/O protection, and telecom interface circuits requiring stable component supply with AEC-Q101 assurance and consistent tape-and-reel delivery.
Supply support for SMAJ60CAHE3/61 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
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, MOSFETs, optoelectronics, and passive components with emphasis on reliability and automotive-grade validation.
The SMAJ series is engineered for high-reliability transient suppression in harsh environments-specifically targeting automotive, industrial, and telecom applications where fast clamping, low leakage, and AEC-Q101 compliance are mandatory.
FAQ
What is the clamping voltage of SMAJ60CAHE3/61 and how is it measured?
The SMAJ60CAHE3/61 has a maximum clamping voltage (VC) of 96.8 V, measured at a peak pulse current (IPPM) of 4.1 A using a 10/1000 μs waveform. This value reflects the actual voltage seen by protected circuitry during a standardized surge event and is guaranteed per Vishay's datasheet revision 09-Jan-2024 (Document Number: 88390). The SMAJ60CAHE3/61 maintains this clamping performance across its full operating temperature range.
Is SMAJ60CAHE3/61 suitable for automotive applications?
Yes, SMAJ60CAHE3/61 is AEC-Q101 qualified and explicitly listed in Vishay's automotive ordering codes (HE3 suffix denotes AEC-Q101 qualification). It is designed for under-hood and chassis-mounted modules-including engine control units, body controllers, and sensor interfaces-where operation from −55 °C to +150 °C and immunity to load dump, jump start, and ESD are required. The SMAJ60CAHE3/61 meets all stress tests defined in AEC-Q101 Rev D.
How does the bidirectional design of SMAJ60CAHE3/61 affect circuit layout?
The SMAJ60CAHE3/61 has no polarity marking and functions identically in both directions, eliminating orientation constraints during PCB placement. This simplifies automated assembly and enables use on AC-coupled lines, differential buses (e.g., CAN, RS-485), or any node where voltage polarity reversal may occur. Layout requires only two 5.0 mm × 5.0 mm copper pads per device, with no need for cathode alignment verification. The SMAJ60CAHE3/61's symmetrical behavior ensures consistent clamping regardless of surge direction.
What is the maximum leakage current of SMAJ60CAHE3/61 at its standoff voltage?
The SMAJ60CAHE3/61 exhibits a maximum reverse leakage current (ID) of 1.0 μA at its 60 V standoff voltage (VWM) and 25 °C ambient temperature. This ultra-low leakage preserves signal integrity in high-impedance sensor interfaces and prevents loading of precision analog circuits. Leakage remains below 5.0 μA up to +125 °C, as confirmed by Vishay's electrical characteristics table in Document Number 88390. The SMAJ60CAHE3/61 achieves this via glass-passivated junction technology.
Can SMAJ60CAHE3/61 be used in place of a unidirectional TVS like SMAJ60AHE3/61?
No-SMAJ60CAHE3/61 is strictly bidirectional and lacks polarity marking, whereas SMAJ60AHE3/61 is unidirectional with a cathode band. Substituting SMAJ60CAHE3/61 for SMAJ60AHE3/61 in DC-biased circuits (e.g., power rail clamping) may cause unintended conduction during normal forward bias. The SMAJ60CAHE3/61 is appropriate only where symmetrical protection is needed; for DC applications, SMAJ60AHE3/61 or equivalent unidirectional part must be used. Always verify circuit topology before replacement.
SMAJ60CAHE3/61 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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):
- 4.1A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
SMAJ60CAHE3/61 FAQ
1.How can I place an order for SMAJ60CAHE3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMAJ60CAHE3/61 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 SMAJ60CAHE3/61 reliable?
The price and inventory of SMAJ60CAHE3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMAJ60CAHE3/61 is usually 5 days.
3.What payment methods are accepted for SMAJ60CAHE3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMAJ60CAHE3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMAJ60CAHE3/61?
SMAJ60CAHE3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMAJ60CAHE3/61 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 SMAJ60CAHE3/61?
For technical support, including SMAJ60CAHE3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMAJ60CAHE3/61 requirements.
6.How does Aetrix verify that SMAJ60CAHE3/61 is sourced from the original manufacturer or authorized distributors?
All SMAJ60CAHE3/61 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 SMAJ60CAHE3/61 meets industry standards.
7.What is the process for return or replacement of SMAJ60CAHE3/61?
All SMAJ60CAHE3/61 units undergo pre-shipment inspection (PSI). If there is an issue with SMAJ60CAHE3/61, 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 SMAJ60CAHE3/61 part is unused and in its original packaging.
Return procedure for SMAJ60CAHE3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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