My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMAJ60AHM3_A/I
- Part No.:
- SMAJ60AHM3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMAJ60AHM3_A/I.pdf
- Description:
- TVS DIODE 60VWM 96.8VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:6,105
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMAJ60AHM3_A/I from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMA (DO-214AC) package, designed for clamping voltage transients on power and signal lines. It features a 60 V stand-off voltage (VWM), 66.7–73.7 V breakdown voltage (VBR) at 1 mA, 96.8 V maximum clamping voltage (VC) at 4.1 A peak pulse current (IPPM), and 400 W peak pulse power (10/1000 μs waveform), targeting protection of MOSFETs, ICs, and sensor interfaces in automotive and industrial systems.
For engineers reviewing the SMAJ60AHM3_A/I datasheet, SMAJ60AHM3_A/I pinout, SMAJ60AHM3_A/I application, or SMAJ60AHM3_A/I equivalent, this part serves as a halogen-free, RoHS-compliant, AEC-Q101-qualified transient suppressor optimized for high-reliability DC power rail and low-voltage signal line protection where fast response (<1 ns), low clamping ratio (VC/VWM ≈ 1.61), and stable thermal performance up to +150 °C junction temperature are required.
Technical Context
This unidirectional TVS diode operates by avalanche breakdown under overvoltage conditions, providing low-impedance shunt conduction to divert surge energy away from protected circuitry. Its glass-passivated junction ensures consistent breakdown behavior and long-term reliability under repetitive transient stress.
The device complies with IEC 61000-4-2 (ESD), IEC 61000-4-4 (EFT), and ISO 7637-2 (automotive load dump) immunity requirements when applied with appropriate PCB layout-specifically 0.2" × 0.2" copper pads per terminal-and exhibits a 0.105 %/°C temperature coefficient of VBR, enabling predictable clamping across operating temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 60 V - Maximum continuous reverse working voltage before clamping initiates; defines safe operating margin for 48 V nominal DC rails. |
| VBR (min/max) | 66.7 V / 73.7 V at 1 mA - Confirmed breakdown threshold range; ensures reliable turn-on above normal operating voltage with margin against false triggering. |
| VC @ IPPM | 96.8 V at 4.1 A - Clamped voltage during 10/1000 μs surge; limits downstream voltage stress to ≤96.8 V under rated 400 W transient. |
| PPPM | 400 W (10/1000 μs) - Peak pulse power handling capability; supports common industrial surge test profiles including IEC 61000-4-5 Level 3 (1 kV/2 Ω). |
| TJ max. | +150 °C - Maximum junction temperature; enables operation in under-hood automotive or enclosed industrial enclosures without derating below full power. |
| RθJA | 120 °C/W - Junction-to-ambient thermal resistance on standard pad layout; informs heatsinking needs for sustained surge repetition. |
| Package | SMA (DO-214AC) - Surface-mount outline with cathode band marking; compatible with automated pick-and-place and reflow soldering per J-STD-020 MSL level 1. |
Pinout & Package
Package: SMA (DO-214AC), molded plastic case with matte tin-plated leads, polarity indicated by cathode band on unidirectional types.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference node | Connected to ground or low-potential return path; completes clamping loop during positive transients on cathode-connected line. |
| Cathode | Protected line input | Connected to the line being protected (e.g., 48 V supply rail); conducts surge current to anode when voltage exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD robustness-enables use in engine control, body electronics, and ADAS power domains. |
| Halogen-free & RoHS-compliant | Meets JEDEC JS709E and IPC-1752A material declarations; supports environmental compliance for global OEM and Tier-1 supply chains. |
| 400 W peak pulse power | Handles 10/1000 μs surges up to 4.1 A without degradation-sufficient for ISO 7637-2 Pulse 1 (inductive switch-off) and Pulse 2a (load dump simulation) in 12 V/24 V systems. |
| Fast response time | <1 ns turn-on latency-prevents voltage overshoot beyond VC during nanosecond-scale transients such as ESD or relay bounce. |
| Low incremental surge resistance | Ensures minimal voltage rise above VC under high di/dt conditions-critical for protecting sensitive gate drivers and analog front-ends. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Suppresses load dump transients on 24 V battery-fed ECUs in commercial vehicles. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between power input and chassis ground, triggered within <1 ns upon exceeding 66.7 V. Use Value: Limits voltage seen by downstream DC/DC converters and microcontrollers to ≤96.8 V, preventing latch-up or oxide breakdown during ISO 7637-2 Pulse 5a events. |
Use Scenario: Shields analog output pins of pressure sensors in factory automation PLC modules from EFT coupling on 4–20 mA loops. IC Role / Device Role / Timing Role: Low-capacitance TVS connected between signal line and local ground, clamping sub-microsecond bursts from nearby motor drives. Use Value: Maintains signal integrity by holding transient-induced error below ±0.5% FS through 96.8 V clamping and <1 ns response-no calibration drift after repeated surges. |
| Telecom DC Power Input Protection | Consumer Device USB Power Line Protection |
|
Use Scenario: Guards PoE-powered network switches against induced lightning surges on 48 V DC input derived from midspan injectors. IC Role / Device Role / Timing Role: Primary-level TVS on main DC bus, coordinated with upstream fuses and secondary TVS arrays on individual ports. Use Value: Absorbs up to 400 W of surge energy while maintaining VWM = 60 V margin above nominal 48 V, ensuring no false trips during brownout recovery. |
Use Scenario: Protects USB-C port VBUS lines in portable medical monitors against hot-plug voltage spikes and ESD. IC Role / Device Role / Timing Role: Unidirectional clamp between VBUS and system ground, sized to handle 10/1000 μs surges up to 4.1 A without forward conduction. Use Value: Prevents damage to USB PD controllers and buck converters by limiting VBUS overshoot to 96.8 V during 8 kV contact ESD events per IEC 61000-4-2. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ60AHE3_A/I | Same electrical specs but RoHS-compliant (non-halogen-free) version; uses standard tin plating without halogen-free molding compound. | Approved for commercial/industrial use where halogen-free certification is not mandated by end-customer specifications. | Select SMAJ60AHE3_A/I when cost sensitivity outweighs halogen-free requirement and AEC-Q101 qualification is not needed. |
| SMAJ60A-M3/61 | Identical electrical and thermal specs; differs only in packaging format (7" reel, 1800 pcs) and base P/N suffix (-M3 vs -HM3). | Intended for high-volume SMT production with smaller reels; same halogen-free and RoHS compliance as SMAJ60AHM3_A/I. | Choose SMAJ60A-M3/61 for standard tape-and-reel logistics where order quantity aligns with 1800-unit reels and AEC-Q101 is not required. |
Compared with SMAJ60AHM3_A/I, SMAJ60AHE3_A/I omits halogen-free certification but retains AEC-Q101 qualification, while SMAJ60A-M3/61 offers identical halogen-free compliance in a different reel size but lacks AEC-Q101 validation-making SMAJ60AHM3_A/I the sole option meeting all three criteria: halogen-free, RoHS, and AEC-Q101.
Availability
SMAJ60AHM3_A/I is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor nodes, telecom power supplies, and consumer USB-C power delivery systems requiring stable component supply with guaranteed halogen-free and AEC-Q101-compliant sourcing.
Supply support for SMAJ60AHM3_A/I 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, rectifiers, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The SMAJ series is engineered for robust transient suppression in harsh environments-designed specifically for automotive, industrial, and telecom applications demanding high surge immunity, low clamping voltage, and long-term stability under thermal cycling.
FAQ
What is the clamping voltage of SMAJ60AHM3_A/I at its rated peak pulse current?
The SMAJ60AHM3_A/I has a maximum clamping voltage (VC) of 96.8 V at its rated peak pulse current (IPPM) of 4.1 A under a 10/1000 μs waveform. This value is measured per IEC 61000-4-5 test conditions and defines the upper voltage limit imposed on protected circuitry during a full-rated surge event. The SMAJ60AHM3_A/I maintains this clamping performance across its full operating temperature range of −55 °C to +150 °C.
Is SMAJ60AHM3_A/I suitable for bidirectional transient protection?
No, SMAJ60AHM3_A/I is a unidirectional TVS diode, indicated by the "A" suffix and cathode band marking. It conducts only during positive voltage excursions relative to its cathode terminal. For bidirectional protection-such as AC lines or data buses requiring suppression of both polarities-SMAJ60CA variants must be used. The SMAJ60AHM3_A/I is intended exclusively for DC power rail and single-polarity signal line protection.
Does SMAJ60AHM3_A/I meet automotive qualification standards?
Yes, SMAJ60AHM3_A/I is AEC-Q101 qualified, as confirmed by Vishay's ordering code suffix "HM3_X" (where "X" = revision A). This qualification covers stress tests including high-temperature reverse bias, temperature cycling, and ESD robustness-validating suitability for under-hood and chassis-mounted automotive applications such as body control modules and ADAS power supplies.
What is the thermal resistance of SMAJ60AHM3_A/I in standard mounting conditions?
The SMAJ60AHM3_A/I has a typical junction-to-ambient thermal resistance (RθJA) of 120 °C/W when mounted on the minimum recommended 0.2" × 0.2" copper pads per terminal. Its junction-to-lead resistance (RθJL) is 30 °C/W, supporting effective heat transfer to PCB copper during repetitive surge events. These values assume no additional heatsinking and are critical for calculating safe duty-cycle limits in high-frequency transient environments.
How does the halogen-free status of SMAJ60AHM3_A/I impact its compliance profile?
SMAJ60AHM3_A/I uses halogen-free molding compound compliant with JEDEC JS709E and IPC-1752A, making it acceptable for strict environmental programs including EU Green Public Procurement and major automotive OEM substance restrictions. Unlike non-halogen-free variants (e.g., SMAJ60AHE3_A/I), the HM3 suffix guarantees full halogen-free content across all materials-including encapsulant and leadframe-without compromising electrical or thermal performance.
SMAJ60AHM3_A/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- TransZorb®
- 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):
- 4.1A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
SMAJ60AHM3_A/I FAQ
1.How can I place an order for SMAJ60AHM3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMAJ60AHM3_A/I 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 SMAJ60AHM3_A/I reliable?
The price and inventory of SMAJ60AHM3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMAJ60AHM3_A/I is usually 5 days.
3.What payment methods are accepted for SMAJ60AHM3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMAJ60AHM3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMAJ60AHM3_A/I?
SMAJ60AHM3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMAJ60AHM3_A/I 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 SMAJ60AHM3_A/I?
For technical support, including SMAJ60AHM3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMAJ60AHM3_A/I requirements.
6.How does Aetrix verify that SMAJ60AHM3_A/I is sourced from the original manufacturer or authorized distributors?
All SMAJ60AHM3_A/I 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 SMAJ60AHM3_A/I meets industry standards.
7.What is the process for return or replacement of SMAJ60AHM3_A/I?
All SMAJ60AHM3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with SMAJ60AHM3_A/I, 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 SMAJ60AHM3_A/I part is unused and in its original packaging.
Return procedure for SMAJ60AHM3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMAJ60AHM3_A/I Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
