My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SA64CAHE3/54
- Part No.:
- SA64CAHE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
SA64CAHE3/54.pdf
- Description:
- TVS DIODE 64VWM 103VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:5,932
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SA64CAHE3/54 from Vishay General Semiconductor is a bidirectional Transient Voltage Suppressor (TVS) diode in DO-15 package, designed for clamping voltage transients on signal or power lines. It features 64 V stand-off voltage (VWM), 71.1–78.6 V breakdown voltage (VBR) at 1 mA, 500 W peak pulse power (10/1000 μs), 103 V maximum clamping voltage at 4.9 A IPPM, and AEC-Q101 qualification for automotive use.
For engineers reviewing the SA64CAHE3/54 datasheet, SA64CAHE3/54 pinout, SA64CAHE3/54 application, or SA64CAHE3/54 equivalent, key selection criteria include bidirectional clamping capability, DO-15 mechanical compatibility, 175 °C junction temperature rating, low incremental surge resistance, and compliance with IEC 61000-4-2/4-4/4-5 for ESD and surge protection in harsh environments.
Technical Context
The SA64CAHE3/54 operates as a bidirectional avalanche diode, symmetrically clamping transient overvoltages in both polarities without polarity marking. Its glass-passivated junction ensures stable VBR and low leakage (<1.0 μA at 64 V), while its 10/1000 μs waveform response supports repetitive surge suppression up to 0.01% duty cycle.
Designed for placement across sensitive inputs or outputs, it delivers fast response time (<1.0 ns), low clamping ratio (VC/VBR ≈ 1.37), and thermal stability via 175 °C max TJ and derating per Fig. 2. The device meets JESD22-B106 solderability and JESD201 class 2 whisker resistance requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 64 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR (min/max) | 71.1 V / 78.6 V at 1 mA - Ensures predictable avalanche initiation across production lot |
| VC @ IPPM | 103 V at 4.9 A - Limits downstream voltage stress during 10/1000 μs surge events |
| PPPM | 500 W - Sustains high-energy transients common in automotive load-dump or inductive switching |
| ID @ VWM | <1.0 μA - Minimizes standby power loss and avoids false triggering in high-impedance circuits |
| TJ max | +175 °C - Enables under-hood deployment without derating in automotive ECUs and motor controls |
| Qualification | AEC-Q101 - Validated for automotive-grade reliability including temperature cycling and HTRB |
Pinout & Package
DO-15 (DO-204AC) molded epoxy package with matte tin-plated leads; bidirectional symmetry means no cathode marking - both terminals are electrically identical and interchangeable.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient conduction path | Both terminals conduct identically during positive or negative overvoltage events; no polarity orientation required in PCB layout |
| Leads (2) | PCB interface and thermal path | Supports manual or wave soldering per J-STD-002; 0.375" lead length used for thermal derating curves (Fig. 5) |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures long-term VBR stability and low parameter drift over temperature and lifetime |
| 500 W peak pulse power (10/1000 μs) | Handles automotive ISO 7637-2 Pulse 5a (load dump) and IEC 61000-4-5 Level 4 surges |
| AEC-Q101 qualification | Validated for automotive applications including engine control, body electronics, and ADAS sensor interfaces |
| Low clamping voltage (103 V @ 4.9 A) | Protects 75 V-rated MOSFETs and microcontrollers without over-clamping margin loss |
| DO-15 mechanical standardization | Enables drop-in replacement across legacy TVS designs and simplifies board-level inventory management |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting LIN bus or 12 V supply rails in vehicle door modules against load-dump transients and jump-start spikes. IC Role / Device Role / Timing Role: Bidirectional clamping element placed directly across power input prior to LDO or MCU. Use Value: Clamps 120 V transients to ≤103 V within nanoseconds, preserving 75 V-rated power switches and avoiding system reset. | Use Scenario: Shielding analog output lines of pressure or temperature sensors in factory automation PLC I/O modules. IC Role / Device Role / Timing Role: Low-capacitance shunt protector on 4–20 mA current loop or 0–10 V analog output traces. Use Value: Sub-1 μA leakage at 64 V prevents signal offset error; 103 V clamping protects downstream ADC front-end op-amps. |
| Telecom DC Power Feeds | Consumer Appliance Motor Control |
Use Scenario: Safeguarding PoE-powered Ethernet switch ports and remote PHY devices from lightning-induced surges on DC bias lines. IC Role / Device Role / Timing Role: Primary surge clamp on 48 V DC feed before DC/DC converter input stage. Use Value: Withstands repeated 500 W pulses per IEC 61000-4-5, maintaining integrity after >1000 surge events without degradation. | Use Scenario: Suppressing commutation spikes from universal motor brushes in washing machines or HVAC blowers. IC Role / Device Role / Timing Role: Across AC line input or motor phase terminals to limit dv/dt and prevent gate driver latch-up. Use Value: 175 °C TJ rating allows mounting near heat-generating triacs; DO-15 footprint fits tight-space motor control PCBs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA64CAHE3/A | Same VWM/VBR/PPPM specs but in smaller SMA (DO-214AC) package; 1.5 W lower PD rating (2.0 W vs. 3.0 W) | Better suited for space-constrained consumer PCBs; less thermal mass limits sustained surge repetition rate | Select SMA64CAHE3/A only when board area is critical and surge duty cycle remains <0.005% |
| P6KE64CA | Same DO-15 package and 64 V rating but 600 W PPPM; higher IPPM (5.2 A) and VC (104 V); not AEC-Q101 qualified | Preferred for industrial equipment where automotive qualification is unnecessary but higher single-pulse margin is needed | Choose P6KE64CA for cost-sensitive non-automotive designs requiring margin above 500 W |
Compared with SMA64CAHE3/A and P6KE64CA, the SA64CAHE3/54 uniquely balances AEC-Q101 compliance, 3.0 W steady-state dissipation, and DO-15 manufacturability - making it optimal for automotive Tier-1 suppliers needing audit-ready traceability and thermal headroom in engine bay deployments.
Availability
SA64CAHE3/54 is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface hardening, and telecom DC feed surge suppression requiring stable component supply across multi-year production programs.
Supply support for SA64CAHE3/54 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, precision, and automotive-grade qualification.
The SAxxCA series targets robust transient suppression in harsh environments, with design focus on bidirectional clamping performance, AEC-Q101 validation, and compatibility with automated assembly processes for automotive and industrial end equipment.
FAQ
What is the maximum clamping voltage of the SA64CAHE3/54 under a 10/1000 μs surge?
The SA64CAHE3/54 has a maximum clamping voltage (VC) of 103 V at 4.9 A peak pulse current (IPPM) for a 10/1000 μs waveform. This value is measured per Figure 9 in the Vishay datasheet 88378 and defines the upper voltage limit imposed on protected circuitry during standardized surge events. The SA64CAHE3/54 maintains this clamping performance across its full operating temperature range.
Is the SA64CAHE3/54 suitable for automotive applications?
Yes, the SA64CAHE3/54 is AEC-Q101 qualified and explicitly rated for automotive use. Its construction includes glass-passivated junctions, JESD201 class 2 whisker resistance, and operation up to +175 °C junction temperature - all validated per AEC-Q101 test conditions. The SA64CAHE3/54 appears in Vishay's automotive-grade ordering matrix with HE3 suffix denoting qualification.
Does the SA64CAHE3/54 have polarity markings on the package?
No, the SA64CAHE3/54 is a bidirectional TVS diode and carries no polarity marking. As confirmed in the "Polarity" section of datasheet 88378, bidirectional types like SA64CAHE3/54 feature symmetrical electrical behavior - both terminals function identically regardless of voltage polarity. This eliminates orientation concerns during placement and simplifies PCB layout.
What is the reverse leakage current of the SA64CAHE3/54 at its rated stand-off voltage?
The SA64CAHE3/54 exhibits a maximum reverse leakage current (ID) of 1.0 μA at its 64 V stand-off voltage (VWM), tested at TA = 25 °C. This low leakage ensures minimal impact on high-impedance signal paths and preserves accuracy in precision analog circuits. Leakage remains below 5.0 μA up to 85 °C per thermal derating data in the datasheet.
Can the SA64CAHE3/54 replace unidirectional TVS diodes in existing designs?
No - the SA64CAHE3/54 is strictly bidirectional and cannot substitute for unidirectional TVS diodes (e.g., SA64A variants) in circuits requiring forward conduction or DC bias blocking. Its symmetrical IV curve provides equal clamping in both directions, making it unsuitable where polarity-specific behavior - such as DC power rail protection with defined anode/cathode routing - is required. Always verify circuit topology before substitution.
SA64CAHE3/54 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 64V
- Voltage - Breakdown (Min):
- 71.1V
- Voltage - Clamping (Max) @ Ipp:
- 103V
- Current - Peak Pulse (10/1000µs):
- 4.9A
- Power - Peak Pulse:
- 500W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AC (DO-15)
SA64CAHE3/54 FAQ
1.How can I place an order for SA64CAHE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for SA64CAHE3/54 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 SA64CAHE3/54 reliable?
The price and inventory of SA64CAHE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SA64CAHE3/54 is usually 5 days.
3.What payment methods are accepted for SA64CAHE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA64CAHE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SA64CAHE3/54?
SA64CAHE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SA64CAHE3/54 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 SA64CAHE3/54?
For technical support, including SA64CAHE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA64CAHE3/54 requirements.
6.How does Aetrix verify that SA64CAHE3/54 is sourced from the original manufacturer or authorized distributors?
All SA64CAHE3/54 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 SA64CAHE3/54 meets industry standards.
7.What is the process for return or replacement of SA64CAHE3/54?
All SA64CAHE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with SA64CAHE3/54, 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 SA64CAHE3/54 part is unused and in its original packaging.
Return procedure for SA64CAHE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SA64CAHE3/54 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 …
