1. General Information & Overview

· Product: O-CS8 Series OCXO (Oven-Controlled Crystal Oscillator)
· Function: Provides a highly stable and precise frequency output. Used in applications demanding accuracy.
· Package: SMD (Surface Mount Device) – 14 x 21 x 7.5 mm
· Manufacturer: NELOC (North Electrical Components)
· Revision: Revision P (as of 08/24/2023) - Note that some data within this revision is crossed out, so confirm latest versions with NELOC.

2. Electrical Specifications (Key Values - Confirm with Latest Revision)

· Frequency Range: The specific frequency range isn't stated directly in the provided document. *You'd need to consult NELOC directly for precise frequencies offered.*
· Stability: The datasheet highlights high stability but doesn't give a specific value. Stability over temperature is controlled by choosing appropriate temperature codes.
· Output: The output type isn't specified.
· Supply Voltage (Vcc): Unspecified.
· Control Voltage (Vc): Used for frequency adjustment (details in pinout).
· Reference Voltage (Vref): Unspecified.

3. Pinout

· Pin 1: Supply Voltage (Vcc)
· Pin 2: Ground
· Pin 3: Ground
· Pin 4: Output
· Pin 5: Control Voltage (Vc)
· Pin 6: Ground
· Pin 7: Reference Voltage (Vref)
· Pin 8: Ground

4. Environmental Conditions & Operating Range

· Operating Temperature: Controlled by the temperature code selected. See the "Temperature Code Table" at the end. Standard operation typically up to 70°C (though higher values are possible, but not recommended).
· Storage Temperature: Not specified.
· Humidity: Not specified.

5. Mechanical Dimensions

· Overall Size: 14 x 21 x 7.5 mm
· SMD Footprint: Defined in the mechanical drawings (not included in provided text).

6. Packaging

· Tape and Reel Specifications: Detailed dimensions are provided for both "T" (50 units/reel) and "T1" (350 units/reel) packaging options. Includes tape width, pocket dimensions, and reel dimensions.

7. Reflow Profile

· JEDEC J-STD-020 Compliant: The datasheet specifies a reflow profile that meets this industry standard.
· Lead-Free and SnPb Eutectic Profiles: Provides temperature and time parameters for both lead-free and traditional SnPb solder processes. Includes peak temperature limits and ramp-up/cool-down rates.

8. Temperature Code Table

This is a critical table allowing customization of operating temperature range. Here's a summary. (Note: the "it's not recommended to over-specify" note means choosing a wider range than necessary can negatively impact cost.)

· Code | Temperature (°C)
* A | -40
* B | -35
* C | -30
* D | -25
* E | -20
* F | -15
* G | -10
* H | -5
* I | 0
* J | 5
* K | 10
* L | 15
* M | 20
* N | 25
* O | 30
* P | 35
* Q | 40
* R | 45
* S | 50
* T | 55
* U | 60
* V | 65
* W | 70
* X | 75
* Y | 80
* Z | 85

9. Important Notes and Cautions

· Contact NELOC: This datasheet appears incomplete. You *must* contact NELOC directly for complete and up-to-date specifications, including frequency range, detailed electrical characteristics, and the latest revision.
· Crossed-Out Data: Pay close attention to any data that is crossed out. These values may be obsolete or no longer supported.
· Stability vs. Cost: Choosing a wider operating temperature range can significantly increase the cost of the OCXO.
· Operating Temperature Limitations: Avoid exceeding the recommended operating temperatures (typically up to 70°C) to ensure reliable performance.
· Part Number String: The part number string must not contain spaces.