My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMA5J7.5AHM3/I
- Part No.:
- SMA5J7.5AHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J7.5AHM3/I.pdf
- Description:
- TVS DIODE 7.5VWM 12.9VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:7,004
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMA5J7.5AHM3/I from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMA (DO-214AC) package, designed for high-energy surge protection on DC power rails and signal lines. It features a 7.5 V stand-off voltage (VWM), 8.33–9.21 V breakdown voltage (VBR) at 1 mA, 12.9 V clamping voltage (VC) at 38.8 A peak pulse current (IPPM), and 500 W peak pulse power (PPPM) with 10/1000 μs waveform - used to safeguard MOSFETs, ICs, and sensor interfaces in automotive and industrial control systems.
For engineers reviewing the SMA5J7.5AHM3/I datasheet, SMA5J7.5AHM3/I pinout, SMA5J7.5AHM3/I application, or SMA5J7.5AHM3/I equivalent, key selection criteria include verified clamping performance under 10/1000 μs transients, AEC-Q101 qualification status, halogen-free RoHS compliance (HM3 suffix), and thermal resistance (RθJA = 80 °C/W) for PCB-level thermal design validation.
Technical Context
This TVS diode operates as a unidirectional clamping device with cathode-band polarity marking, leveraging glass-passivated junction technology for stable avalanche behavior and low incremental surge resistance. Its 150 °C maximum junction temperature and MSL Level 1 rating support reflow-compatible automated assembly on standard FR-4 PCBs.
The SMA5J7.5AHM3/I delivers consistent clamping response within 1 ns typical, validated per ANSI/IEEE C62.35, and maintains ≤100 μA reverse leakage at VWM - critical for low-power sensor supply rail protection where quiescent current integrity must be preserved during standby operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 7.5 V - Maximum continuous reverse operating voltage before clamping begins; sets minimum system supply margin for protected circuitry. |
| VBR min/max | 8.33 V / 9.21 V at 1.0 mA - Confirmed avalanche onset range ensures predictable turn-on without premature conduction during normal operation. |
| VC @ IPPM | 12.9 V at 38.8 A - Clamped voltage during 10/1000 μs surge defines maximum stress imposed on downstream components. |
| PPPM | 500 W - Peak transient energy absorption capacity determines suitability for IEC 61000-4-5 Level 4 (4 kV) surge immunity designs. |
| RθJA | 80 °C/W - Junction-to-ambient thermal resistance informs minimum copper pad area (0.2" × 0.2") required for sustained surge duty cycling. |
| TJ max | +150 °C - Maximum junction temperature enables use in under-hood automotive environments and industrial enclosures without derating. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002. Cathode identified by black band; anode is unmarked end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Surge current sink node | Connected to protected line (e.g., +12 V rail); conducts transient energy to ground when V > VBR. |
| Anode (unmarked end) | Reference/return path | Typically tied to system ground or low-impedance return plane; completes clamping path during overvoltage events. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing - supports ASIL-B system integration. |
| Halogen-free & RoHS-compliant (HM3) | Meets IEC 61249-2-21 and JEDEC J-STD-020 MSL Level 1 - enables lead-free reflow without delamination risk. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ISO 7637-2 pulse 1/2a), improving clamping precision. |
| Fast response time | <1 ns typical - ensures suppression activation prior to damage threshold of sensitive CMOS inputs or gate drivers. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump and alternator ripple transients per ISO 7637-2. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between power input and local regulator input. Use Value: Limits voltage excursion to ≤12.9 V during 35 V/100 ms load dump, preventing LDO dropout and MCU brownout. |
Use Scenario: Shielding analog output lines (e.g., 4–20 mA transmitter) from ESD and field-wiring surges. IC Role / Device Role / Timing Role: Point-of-entry protection on sensor PCB before signal conditioning amplifier. Use Value: Absorbs ±15 kV contact ESD per IEC 61000-4-2 without degrading 16-bit DAC linearity or offset drift. |
| Consumer Power Adapter Input Stage | Telecom DC Feeder Line Protection |
Use Scenario: Safeguarding AC/DC adapter primary-side controller ICs against lightning-induced surges on mains input. IC Role / Device Role / Timing Role: Secondary-side TVS on DC output rail feeding USB-C PD controller. Use Value: Clamps 1 kV/0.5 J surge to 12.9 V within 1 ns, avoiding latch-up in USB PD communication PHY. |
Use Scenario: Protecting PoE-powered equipment (e.g., IP cameras) from induced surges on 48 V DC feeder lines. IC Role / Device Role / Timing Role: Bidirectional-capable layout (though SMA5J7.5AHM3/I is unidirectional, used with series resistor for asymmetry). Use Value: Withstands repeated 10/700 μs telecom surges up to 4 kV while maintaining <100 μA leakage at 7.5 V. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J7.5AHE3/I | Same electrical specs, but RoHS-compliant without halogen-free certification; AEC-Q101 qualified (HE3 suffix). | Acceptable for commercial-automotive hybrids where halogen content is not regulated (e.g., non-EU Tier 2 suppliers). | Select SMA5J7.5AHE3/I if AEC-Q101 compliance is required but halogen-free material is optional. |
| SMCJ7.5A-HM3 | Same VWM/VBR/VC, but SMC (DO-214AB) package - larger footprint, higher PPPM (1500 W), RθJA = 35 °C/W. | Better suited for high-reliability industrial power supplies requiring >500 W single-pulse handling and lower thermal resistance. | Choose SMCJ7.5A-HM3 when board space allows and thermal/power margin exceeds 500 W requirements. |
Compared with SMA5J7.5AHE3/I, the SMA5J7.5AHM3/I adds halogen-free compliance for strict environmental mandates; versus SMCJ7.5A-HM3, it trades 1000 W headroom and thermal advantage for compact SMA footprint - ideal for space-constrained automotive modules.
Availability
SMA5J7.5AHM3/I is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLC I/O terminals, and consumer power adapter designs requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SMA5J7.5AHM3/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, and protection devices with emphasis on reliability, power density, and automotive qualification.
The SMA5J series was engineered for high-power-density transient suppression in space-constrained automotive and industrial applications, balancing clamping precision, surge robustness, and reflow compatibility in the DO-214AC package.
FAQ
What is the peak pulse power rating of the SMA5J7.5AHM3/I?
The SMA5J7.5AHM3/I has a peak pulse power rating (PPPM) of 500 W under the standard 10/1000 μs double-exponential waveform. This value is measured with the device mounted on 0.2" × 0.2" copper pads per JEDEC test conditions and defines its ability to absorb transient energy without failure - a key parameter for IEC 61000-4-5 compliance verification in the SMA5J7.5AHM3/I design stage.
Is the SMA5J7.5AHM3/I AEC-Q101 qualified?
Yes, the SMA5J7.5AHM3/I is AEC-Q101 qualified, as confirmed by Vishay's ordering code suffix "HM3" and documentation in datasheet 88875 (Rev. 09-Jan-2024). This qualification covers stress tests including temperature cycling, high-temperature reverse bias, and ESD - making the SMA5J7.5AHM3/I suitable for automotive powertrain and chassis applications where reliability under thermal and electrical stress is mandatory.
What does the "HM3" suffix indicate for the SMA5J7.5AHM3/I?
The "HM3" suffix in SMA5J7.5AHM3/I denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification. It distinguishes this variant from "HE3" (RoHS + AEC-Q101, not halogen-free) and "E3/M3" (commercial grade only). The HM3 designation ensures compliance with automotive environmental standards such as JESD201 Class 2 whisker resistance and UL 94 V-0 flammability for the SMA5J7.5AHM3/I molding compound.
What is the maximum clamping voltage of the SMA5J7.5AHM3/I at rated surge current?
The SMA5J7.5AHM3/I exhibits a maximum clamping voltage (VC) of 12.9 V at its rated peak pulse current (IPPM) of 38.8 A, tested with a 10/1000 μs waveform. This VC value directly determines the peak stress imposed on downstream components - for example, ensuring that a 5 V logic IC powered through a local LDO remains below its absolute maximum rating during surge events involving the SMA5J7.5AHM3/I.
How does the thermal resistance of the SMA5J7.5AHM3/I affect PCB layout?
The SMA5J7.5AHM3/I has a typical junction-to-ambient thermal resistance (RθJA) of 80 °C/W when mounted on 0.2" × 0.2" copper pads per datasheet Fig. 2. To maintain safe junction temperatures during repetitive surge events, PCB layout must allocate sufficient copper area and thermal vias - undersized pads increase RθJA, risking thermal runaway. This requirement is explicitly defined for the SMA5J7.5AHM3/I in Vishay's mechanical recommendations.
SMA5J7.5AHM3/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:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 7.5V
- Voltage - Breakdown (Min):
- 8.33V
- Voltage - Clamping (Max) @ Ipp:
- 12.9V
- Current - Peak Pulse (10/1000µs):
- 38.8A
- Power - Peak Pulse:
- 500W
- 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)
SMA5J7.5AHM3/I FAQ
1.How can I place an order for SMA5J7.5AHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J7.5AHM3/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 SMA5J7.5AHM3/I reliable?
The price and inventory of SMA5J7.5AHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J7.5AHM3/I is usually 5 days.
3.What payment methods are accepted for SMA5J7.5AHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J7.5AHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J7.5AHM3/I?
SMA5J7.5AHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J7.5AHM3/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 SMA5J7.5AHM3/I?
For technical support, including SMA5J7.5AHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J7.5AHM3/I requirements.
6.How does Aetrix verify that SMA5J7.5AHM3/I is sourced from the original manufacturer or authorized distributors?
All SMA5J7.5AHM3/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 SMA5J7.5AHM3/I meets industry standards.
7.What is the process for return or replacement of SMA5J7.5AHM3/I?
All SMA5J7.5AHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J7.5AHM3/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 SMA5J7.5AHM3/I part is unused and in its original packaging.
Return procedure for SMA5J7.5AHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMA5J7.5AHM3/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 …
