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1.5KE16A-E3/73
Vishay General Semiconductor - Diodes Division
TVS DIODE 13.6VWM 22.5VC 1.5KE
7234 Pcs New Original In Stock
22.5V Clamp 66.7A Ipp Tvs Diode Through Hole 1.5KE
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5.0 / 5.0
- (167 Ratings)
1.5KE16A-E3/73
Product Overview
935885
DiGi Electronics Part Number
1.5KE16A-E3/73-DGManufacturer
Vishay General Semiconductor - Diodes Division
1.5KE16A-E3/73
Description
TVS DIODE 13.6VWM 22.5VC 1.5KEInventory
7234 Pcs New Original In Stock
22.5V Clamp 66.7A Ipp Tvs Diode Through Hole 1.5KE
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Minimum 1
Minimum 1
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1.5KE16A-E3/73 Technical Specifications
Category
Transient Voltage Suppressors (TVS), TVS Diodes
Packaging
-
Series
TransZorb®
Product Status
Active
Type
Zener
Unidirectional Channels
1
Voltage - Reverse Standoff (Typ)
13.6V
Voltage - Breakdown (Min)
15.2V
Voltage - Clamping (Max) @ Ipp
22.5V
Current - Peak Pulse (10/1000µs)
66.7A
Power - Peak Pulse
1500W (1.5kW)
Power Line Protection
No
Applications
General Purpose
Capacitance @ Frequency
-
Operating Temperature
-55°C ~ 175°C (TJ)
Mounting Type
Through Hole
Package / Case
DO-201AA, DO-27, Axial
Supplier Device Package
1.5KE
Base Product Number
1.5KE16
Datasheet & Documents
HTML Datasheet
1.5KE16A-E3/73-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
1 (Unlimited)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8541.10.0080
Additional Information
Standard Package
1,000
Alternative Parts
View DetailsReviews
5.0/5.0-(Show up to 5 Ratings)
de desembre 02, 2025
빠른 배송과 뛰어난 품질이 일상 업무와 프로젝트에 큰 도움이 됐어요.
de desembre 02, 2025
手頃な価格と丁寧なサポート。理想的な企業だと感じます。
de desembre 02, 2025
Their after-sales service demonstrates genuine care, setting them apart from others.
de desembre 02, 2025
Reliable after-sales assistance solidifies our confidence in their products and services.
de desembre 02, 2025
Outstanding after-sales support made me feel valued long after my purchase.
de desembre 02, 2025
Fast shipment combined with dedicated customer service made my entire buying experience smooth and efficient.
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Frequently Asked Questions (FAQ)
Can the 1.5KE16A-E3/73 TVS diode be safely used as a replacement for a 1.5KE15A in a 12V automotive power rail protection circuit, and what are the risks of over-voltage margin or false triggering?
Replacing the 1.5KE15A with the 1.5KE16A-E3/73 is generally acceptable in a 12V automotive system, but it introduces a slightly higher clamping voltage (22.5V vs. 21.2V at 66.7A) and a higher reverse standoff voltage (13.6V vs. 13.3V). While this reduces the risk of nuisance triggering during load dump transients, it may provide marginally less protection for sensitive downstream components like MCUs or CAN transceivers. Ensure your load can tolerate up to 22.5V during a transient event. The 1.5KE16A-E3/73 offers better long-term reliability under repeated stress due to its higher power rating buffer, making it a safer choice if system headroom allows.
What layout and thermal considerations should I account for when using the 1.5KE16A-E3/73 in a high-vibration industrial environment with frequent 10/1000µs surge events?
The 1.5KE16A-E3/73’s through-hole DO-201AA package provides robust mechanical stability in high-vibration settings, but improper PCB layout can lead to thermal fatigue or premature failure. Always use a wide, low-impedance ground pour connected to the cathode side and minimize lead length to reduce parasitic inductance. For environments with frequent surges, consider derating the peak pulse power—even though it's rated for 1.5kW, sustained energy absorption near this limit can cause junction temperature spikes. If surges occur more than once per minute, monitor case temperature and consider adding a small heatsink or spacing multiple diodes. Also, ensure conformal coating does not trap heat around the body.
How does the 1.5KE16A-E3/73 compare to the Littelfuse SA15A in terms of clamping performance and long-term reliability for telecom line protection?
The 1.5KE16A-E3/73 has a higher reverse standoff voltage (13.6V vs. 15V for SA15A) and clamps at 22.5V compared to the SA15A’s 24.4V, meaning it offers tighter voltage suppression—advantageous for protecting low-voltage telecom ICs. However, the SA15A is rated for 500W vs. 1500W, so the 1.5KE16A-E3/73 handles higher-energy transients with greater margin. In long-term reliability, Vishay’s TransZorb® series typically shows lower degradation after repeated IEC 61000-4-5 surges due to optimized junction design. If your system operates near 13–14V nominal, the 1.5KE16A-E3/73 is preferable; if operating closer to 15V, verify that 13.6V standoff doesn’t risk leakage or false conduction during normal operation.
Is it safe to parallel two 1.5KE16A-E3/73 diodes to increase surge current handling, and what are the potential failure modes if done incorrectly?
Paralleling two 1.5KE16A-E3/73 diodes is not recommended without careful design. Due to slight manufacturing variations in breakdown voltage and dynamic resistance, one diode may conduct significantly more current than the other during a transient, leading to thermal runaway and early failure. If you must parallel them, use matched batches (same date code), add small series resistors (0.1–0.5Ω, 1W) to each anode, and ensure symmetrical PCB layout with equal trace lengths. Even then, derate total expected surge current by at least 30%. A better approach is to select a single higher-power device like the 3KP16A or P6KE16A in a surface-mount package if board space allows.
Can the 1.5KE16A-E3/73 be used bidirectionally in an AC signal line protection application, and what performance trade-offs should I expect?
The 1.5KE16A-E3/73 is a unidirectional TVS diode and should not be used directly in bidirectional AC applications without modification. If placed alone on an AC line, it will conduct during the negative half-cycle once the reverse voltage exceeds 13.6V, potentially damaging the diode or distorting the signal. For AC protection, either use two 1.5KE16A-E3/73 diodes in inverse series (back-to-back) or select a dedicated bidirectional equivalent like the P6KE16CA. The inverse-series configuration nearly doubles the effective capacitance and introduces slight asymmetry in clamping levels, which may affect high-frequency signal integrity. Always validate with oscilloscope testing under surge conditions to ensure clean clamping without waveform distortion.
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1.5KE16A-E3/73 CAD Models
Vishay General Semiconductor - Diodes Division 1.5KE16A-E3/73 PCB symbols & footprints
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